/* ========================================
   用友 U9 cloud 详情页专属样式
   布局/动效复刻自参考页，红色主题重映射为网站青蓝商务科技风
   仅作用于 u9cloud.html，类名加 u9- 前缀避免冲突
   ======================================== */

:root {
  /* 配色：参考页红色主题 → 网站青蓝商务（与 YonSuite 一致） */
  --u9-accent: #15B0ED;            /* 主色青蓝（网站 logo 色） */
  --u9-accent-dark: #0E8FC0;       /* 主色加深 */
  --u9-accent-deep: #0F2F3F;       /* 深青蓝（标题） */
  --u9-accent-cyan: #0891b2;       /* 辅助青 */
  --u9-glow: rgba(21, 176, 237, 0.15);

  --u9-bg: #fafbfc;                /* 与全局 bg-soft 一致 */
  --u9-bg-white: #ffffff;
  --u9-bg-card: #ffffff;
  --u9-bg-card-alt: #f5fbfe;       /* 浅青底（原灰调改青蓝） */
  --u9-bg-footer: #f5fbfe;

  --u9-text-primary: #5F5D5D;      /* 与全局正文灰一致 */
  --u9-text-secondary: #4a4f66;
  --u9-text-muted: #8a8fa0;
  --u9-text-dark: #0F2F3F;         /* 深青蓝标题（与全局一致） */

  --u9-border-light: #e2e8f0;      /* 与全局一致 */
  --u9-border-medium: #cbd5e1;

  --u9-shadow-sm: 0 2px 8px rgba(15, 47, 63, 0.06);
  --u9-shadow-md: 0 4px 20px rgba(21, 176, 237, 0.08);
  --u9-shadow-lg: 0 8px 40px rgba(21, 176, 237, 0.12);
  --u9-shadow-accent: 0 4px 24px rgba(21, 176, 237, 0.18);

  /* 渐变：青蓝双向（原红色） */
  --u9-gradient: linear-gradient(135deg, #15B0ED 0%, #0E8FC0 100%);
  --u9-gradient-section: linear-gradient(135deg, #15B0ED 0%, #0891b2 100%);
}

/* ===== 粒子背景 ===== */
/* ===== 布局 ===== */
.u9-main { position: relative; z-index: 1; }
.u9-section { position: relative; padding: 100px 5%; margin-top: var(--header-height, 76px); }
.u9-section:first-of-type { margin-top: 0; } /* hero 已自带 margin */
.u9-container { max-width: 1280px; margin: 0 auto; }

/* ===== 区块标题 ===== */
.u9-section-header { text-align: center; margin-bottom: 60px; }
.u9-section-tag {
  display: inline-block;
  padding: 6px 20px;
  background: rgba(21, 176, 237, 0.06);
  border: 1px solid rgba(21, 176, 237, 0.2);
  border-radius: 30px;
  font-size: 0.8rem;
  color: var(--u9-accent-dark);
  margin-bottom: 20px;
  letter-spacing: 2px;
  font-weight: 600;
}
.u9-section-title {
  font-size: 2.2rem;
  font-weight: 800;
  margin-bottom: 16px;
  background: var(--u9-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.u9-section-subtitle {
  font-size: 1rem;
  color: var(--u9-text-muted);
  max-width: 700px;
  margin: 0 auto;
}

/* ===== HERO ===== */
.u9-hero-grid {
  position: absolute; bottom: -60px; left: 50%; z-index: 0;
  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;
  -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: u9-gridScroll 24s linear infinite;
}
@keyframes u9-gridScroll { to { background-position: 0 56px; } }
.u9-hero {
  min-height: calc(100vh - var(--header-height, 76px));
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 60px 5% 70px;
  position: relative;
  overflow: hidden;
  background: var(--u9-bg-white);
  margin-top: var(--header-height, 76px);
}
.u9-hero::before {
  content: '';
  position: absolute;
  top: 50%; left: 50%;
  width: 900px; height: 900px;
  transform: translate(-50%, -50%);
  background: radial-gradient(circle, rgba(21, 176, 237, 0.05) 0%, transparent 70%);
  animation: u9-pulse-bg 4s ease-in-out infinite;
}
@keyframes u9-pulse-bg {
  0%, 100% { transform: translate(-50%, -50%) scale(1); opacity: 0.5; }
  50% { transform: translate(-50%, -50%) scale(1.1); opacity: 0.8; }
}
.u9-hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 24px;
  background: rgba(21, 176, 237, 0.05);
  border: 1px solid rgba(21, 176, 237, 0.25);
  border-radius: 30px;
  font-size: 0.85rem;
  color: var(--u9-accent-dark);
  margin-bottom: 32px;
  animation: u9-fadeInDown 1s ease 0.2s both;
  letter-spacing: 1px;
  font-weight: 500;
}
.u9-hero-badge .pulse-dot {
  width: 8px; height: 8px;
  background: var(--u9-accent);
  border-radius: 50%;
  animation: u9-blink 1.5s ease-in-out infinite;
}
@keyframes u9-blink { 0%,100%{opacity:1;} 50%{opacity:0.3;} }
.u9-hero h1 {
  font-size: 3.5rem;
  font-weight: 900;
  line-height: 1.2;
  margin-bottom: 20px;
  color: var(--u9-text-dark);
  animation: u9-fadeInUp 1s ease 0.4s both;
}
.u9-hero h1 .u9-highlight {
  background: var(--u9-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  position: relative;
  display: inline-block;
}
.u9-hero h1 .u9-highlight::after {
  content: '';
  position: absolute;
  bottom: -4px; left: 0;
  width: 100%; height: 3px;
  background: var(--u9-gradient);
  border-radius: 2px;
  animation: u9-lineExpand 1.5s ease 1s both;
}
@keyframes u9-lineExpand { from{width:0;} to{width:100%;} }
/* 「用友」红 + 英文产品名深灰，与 YonSuite hero 一致 */
.u9-hero-red { color: #DC2626; }
.u9-hero-gray { color: #475569; }
.u9-hero-subtitle {
  font-size: 1.3rem;
  color: var(--u9-text-secondary);
  margin-bottom: 40px;
  animation: u9-fadeInUp 1s ease 0.6s both;
}
.u9-hero-features {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  justify-content: center;
  margin-bottom: 48px;
  animation: u9-fadeInUp 1s ease 0.8s both;
}
.u9-hero-feature-chip {
  padding: 10px 22px;
  background: var(--u9-bg-white);
  border: 1px solid var(--u9-border-light);
  border-radius: 12px;
  font-size: 0.9rem;
  color: var(--u9-text-secondary);
  transition: all 0.3s;
  display: flex;
  align-items: center;
  gap: 8px;
  box-shadow: var(--u9-shadow-sm);
}
.u9-hero-feature-chip:hover {
  border-color: var(--u9-accent);
  box-shadow: var(--u9-shadow-accent);
  transform: translateY(-3px);
  color: var(--u9-accent-dark);
}
.u9-hero-feature-chip .chip-icon {
  width: 6px; height: 6px;
  background: var(--u9-accent);
  border-radius: 50%;
}
.u9-hero-cta { display: flex; gap: 20px; animation: u9-fadeInUp 1s ease 1s both; flex-wrap: wrap; justify-content: center; }
.u9-btn {
  padding: 14px 36px;
  border-radius: 10px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: all 0.3s;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 10px;
}
.u9-btn-primary {
  background: var(--u9-gradient);
  color: #fff;
  box-shadow: var(--u9-shadow-accent);
}
.u9-btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 30px rgba(21, 176, 237, 0.32);
}
.u9-btn-ghost {
  background: transparent;
  color: var(--u9-text-dark);
  border: 2px solid var(--u9-border-medium);
}
.u9-btn-ghost:hover {
  border-color: var(--u9-accent);
  color: var(--u9-accent-dark);
  transform: translateY(-2px);
}

/* ===== 滚动指示器 ===== */
.u9-scroll-indicator {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  animation: u9-fadeInUp 1s ease 1.2s both;
}
.u9-scroll-indicator .mouse {
  width: 26px; height: 42px;
  border: 2px solid var(--u9-text-muted);
  border-radius: 14px;
  position: relative;
}
.u9-scroll-indicator .mouse::before {
  content: '';
  position: absolute;
  top: 8px; left: 50%;
  transform: translateX(-50%);
  width: 4px; height: 8px;
  background: var(--u9-accent);
  border-radius: 2px;
  animation: u9-scrollDown 1.8s ease-in-out infinite;
}
@keyframes u9-scrollDown {
  0% { opacity: 0; top: 8px; }
  40% { opacity: 1; }
  80% { opacity: 0; top: 22px; }
  100% { opacity: 0; }
}

/* ===== 产品定位 ===== */
.u9-positioning-card {
  background: var(--u9-bg-white);
  border: 1px solid var(--u9-border-light);
  border-radius: 24px;
  padding: 56px;
  position: relative;
  overflow: hidden;
  transition: all 0.5s;
  box-shadow: var(--u9-shadow-md);
}
.u9-positioning-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--u9-gradient);
}
.u9-positioning-card:hover { border-color: rgba(21, 176, 237, 0.3); box-shadow: var(--u9-shadow-lg); }
.u9-positioning-text { font-size: 1.05rem; color: var(--u9-text-secondary); line-height: 1.9; }
.u9-positioning-text strong { color: var(--u9-accent-dark); }
.u9-positioning-tags { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 32px; }
.u9-positioning-tag {
  padding: 8px 18px;
  background: rgba(21, 176, 237, 0.04);
  border: 1px solid rgba(21, 176, 237, 0.15);
  border-radius: 8px;
  font-size: 0.85rem;
  color: var(--u9-accent-dark);
  transition: all 0.3s;
  font-weight: 500;
}
.u9-positioning-tag:hover { background: rgba(21, 176, 237, 0.08); transform: translateY(-2px); }

/* ===== 九大场景 ===== */
.u9-scenarios-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.u9-scenario-card {
  background: var(--u9-bg-white);
  border: 1px solid var(--u9-border-light);
  border-radius: 16px;
  padding: 32px 28px;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
  cursor: default;
  box-shadow: var(--u9-shadow-sm);
}
.u9-scenario-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  background: linear-gradient(135deg, rgba(21,176,237,0) 0%, rgba(21,176,237,0.03) 100%);
  opacity: 0;
  transition: opacity 0.4s;
}
.u9-scenario-card:hover { transform: translateY(-8px); border-color: rgba(21, 176, 237, 0.3); box-shadow: var(--u9-shadow-lg); }
.u9-scenario-card:hover::before { opacity: 1; }
.u9-scenario-num {
  font-size: 2.5rem;
  font-weight: 900;
  color: rgba(21, 176, 237, 0.08);
  position: absolute;
  top: 12px; right: 20px;
  line-height: 1;
  transition: all 0.4s;
}
.u9-scenario-card:hover .u9-scenario-num { color: rgba(21, 176, 237, 0.15); transform: scale(1.1); }
.u9-scenario-icon {
  width: 52px; height: 52px;
  background: rgba(21, 176, 237, 0.06);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  border: 1px solid rgba(21, 176, 237, 0.15);
  transition: all 0.4s;
}
.u9-scenario-card:hover .u9-scenario-icon { background: var(--u9-gradient); box-shadow: var(--u9-shadow-accent); }
.u9-scenario-icon svg { width: 26px; height: 26px; stroke: var(--u9-accent); fill: none; stroke-width: 2; transition: stroke 0.4s; }
.u9-scenario-card:hover .u9-scenario-icon svg { stroke: #fff; }
.u9-scenario-title { font-size: 1.2rem; font-weight: 700; margin-bottom: 12px; color: var(--u9-text-dark); }
.u9-scenario-desc { font-size: 0.92rem; color: var(--u9-text-muted); line-height: 1.7; }

/* ===== 六大特性 ===== */
.u9-features-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.u9-feature-card {
  background: var(--u9-bg-white);
  border: 1px solid var(--u9-border-light);
  border-radius: 16px;
  padding: 36px 28px;
  transition: all 0.4s;
  position: relative;
  overflow: hidden;
  box-shadow: var(--u9-shadow-sm);
}
.u9-feature-card::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0;
  width: 0; height: 3px;
  background: var(--u9-gradient);
  transition: width 0.5s;
}
.u9-feature-card:hover::after { width: 100%; }
.u9-feature-card:hover { transform: translateY(-6px); border-color: rgba(21, 176, 237, 0.3); box-shadow: var(--u9-shadow-lg); }
.u9-feature-icon {
  width: 56px; height: 56px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
  background: transparent;
  border: 2px solid rgba(21, 176, 237, 0.2);
}
.u9-feature-icon svg { width: 28px; height: 28px; stroke: var(--u9-accent); fill: none; stroke-width: 2; }
.u9-feature-title { font-size: 1.25rem; font-weight: 700; margin-bottom: 14px; color: var(--u9-text-dark); }
.u9-feature-desc { font-size: 0.92rem; color: var(--u9-text-muted); line-height: 1.8; }

/* ===== 六大价值 ===== */
.u9-values-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.u9-value-item {
  background: var(--u9-bg-white);
  border: 1px solid var(--u9-border-light);
  border-radius: 16px;
  padding: 36px;
  display: flex;
  gap: 24px;
  transition: all 0.4s;
  align-items: flex-start;
  box-shadow: var(--u9-shadow-sm);
}
.u9-value-item:hover { border-color: rgba(21, 176, 237, 0.3); transform: translateX(8px); box-shadow: var(--u9-shadow-md); }
.u9-value-num {
  flex-shrink: 0;
  width: 56px; height: 56px;
  background: var(--u9-gradient);
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  font-weight: 900;
  color: #fff;
  box-shadow: var(--u9-shadow-accent);
}
.u9-value-content h3 { font-size: 1.2rem; font-weight: 700; margin-bottom: 10px; color: var(--u9-text-dark); }
.u9-value-content p { font-size: 0.92rem; color: var(--u9-text-muted); line-height: 1.7; }

/* ===== 两个版本 ===== */
.u9-versions-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; }
.u9-version-card { border-radius: 20px; padding: 44px; position: relative; overflow: hidden; transition: all 0.4s; }
.u9-version-standard { background: #f8fbfd; border: 2px solid var(--u9-border-light); }
.u9-version-enterprise {
  background: #fff;
  border: 2px solid rgba(21, 176, 237, 0.3);
  box-shadow: 0 0 40px rgba(21, 176, 237, 0.06);
}
.u9-version-card:hover { transform: translateY(-6px); box-shadow: 0 20px 60px rgba(0, 0, 0, 0.1); }
.u9-version-enterprise:hover { box-shadow: 0 20px 60px rgba(21, 176, 237, 0.1); }
.u9-version-badge {
  position: absolute;
  top: 24px; right: 24px;
  padding: 5px 16px;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 600;
}
.u9-version-standard .u9-version-badge { background: #e5e7eb; color: var(--u9-text-muted); }
.u9-version-enterprise .u9-version-badge { background: var(--u9-gradient); color: #fff; }
.u9-version-title { font-size: 1.5rem; font-weight: 800; margin-bottom: 8px; margin-top: 12px; color: var(--u9-text-dark); }
.u9-version-target { font-size: 0.88rem; color: var(--u9-accent-dark); margin-bottom: 24px; font-weight: 500; }
.u9-version-label {
  font-size: 0.8rem;
  color: var(--u9-text-muted);
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-bottom: 8px;
  margin-top: 16px;
  font-weight: 600;
}
.u9-version-text { font-size: 0.95rem; color: var(--u9-text-secondary); line-height: 1.8; margin-bottom: 16px; }
.u9-version-features { list-style: none; }
.u9-version-features li {
  padding: 8px 0;
  font-size: 0.9rem;
  color: var(--u9-text-secondary);
  display: flex;
  align-items: center;
  gap: 10px;
}
.u9-version-features li::before {
  content: '';
  width: 6px; height: 6px;
  background: var(--u9-accent);
  border-radius: 50%;
  flex-shrink: 0;
}

/* ===== 集成方案 ===== */
.u9-solutions-wrapper { display: flex; flex-direction: column; gap: 40px; }
.u9-solution-block {
  background: var(--u9-bg-white);
  border: 1px solid var(--u9-border-light);
  border-radius: 20px;
  padding: 44px;
  position: relative;
  overflow: hidden;
  transition: all 0.4s;
  box-shadow: var(--u9-shadow-sm);
}
.u9-solution-block:hover { border-color: rgba(21, 176, 237, 0.25); box-shadow: var(--u9-shadow-lg); }
.u9-solution-header { display: flex; align-items: center; gap: 16px; margin-bottom: 32px; }
.u9-solution-number {
  width: 48px; height: 48px;
  background: var(--u9-gradient);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  font-weight: 900;
  color: #fff;
  flex-shrink: 0;
}
.u9-solution-title { font-size: 1.3rem; font-weight: 700; color: var(--u9-text-dark); }
.u9-solution-subtitle { font-size: 0.88rem; color: var(--u9-text-muted); margin-top: 4px; }
.u9-solution-flow { display: flex; flex-wrap: wrap; gap: 16px; align-items: stretch; }
.u9-solution-node {
  flex: 1;
  min-width: 160px;
  background: #f8fbfd;
  border: 1px solid var(--u9-border-light);
  border-radius: 12px;
  padding: 20px;
  transition: all 0.3s;
  position: relative;
}
.u9-solution-node:hover { background: #fff; border-color: rgba(21, 176, 237, 0.3); transform: translateY(-4px); box-shadow: var(--u9-shadow-md); }
.u9-solution-node h4 { font-size: 1rem; font-weight: 700; margin-bottom: 8px; color: var(--u9-accent-dark); }
.u9-solution-node p { font-size: 0.82rem; color: var(--u9-text-muted); line-height: 1.6; }
.u9-solution-arrow {
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--u9-accent);
  font-size: 1.5rem;
  flex-shrink: 0;
  opacity: 0.5;
}

/* ===== 部署交付 ===== */
.u9-deploy-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.u9-deploy-card {
  background: var(--u9-bg-white);
  border: 1px solid var(--u9-border-light);
  border-radius: 16px;
  padding: 36px 28px;
  transition: all 0.4s;
  box-shadow: var(--u9-shadow-sm);
}
.u9-deploy-card:hover { border-color: rgba(21, 176, 237, 0.25); transform: translateY(-6px); box-shadow: var(--u9-shadow-lg); }
.u9-deploy-icon {
  width: 48px; height: 48px;
  border-radius: 12px;
  background: rgba(21, 176, 237, 0.06);
  border: 1px solid rgba(21, 176, 237, 0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}
.u9-deploy-icon svg { width: 24px; height: 24px; stroke: var(--u9-accent); fill: none; stroke-width: 2; }
.u9-deploy-title { font-size: 1.15rem; font-weight: 700; margin-bottom: 16px; color: var(--u9-text-dark); }
.u9-deploy-list { list-style: none; }
.u9-deploy-list li {
  padding: 8px 0;
  font-size: 0.88rem;
  color: var(--u9-text-secondary);
  display: flex;
  align-items: flex-start;
  gap: 10px;
  line-height: 1.6;
}
.u9-deploy-list li::before { content: '▸'; color: var(--u9-accent); flex-shrink: 0; font-size: 0.85rem; margin-top: 2px; }
.u9-deploy-partners { margin-top: 40px; text-align: center; }
.u9-deploy-partners h4 { font-size: 0.9rem; color: var(--u9-text-muted); margin-bottom: 20px; letter-spacing: 2px; font-weight: 600; }
.u9-partner-tags { display: flex; flex-wrap: wrap; gap: 12px; justify-content: center; }
.u9-partner-tag {
  padding: 10px 24px;
  background: var(--u9-bg-white);
  border: 1px solid var(--u9-border-light);
  border-radius: 10px;
  font-size: 0.9rem;
  color: var(--u9-text-secondary);
  transition: all 0.3s;
  box-shadow: var(--u9-shadow-sm);
}
.u9-partner-tag:hover { border-color: var(--u9-accent); color: var(--u9-accent-dark); transform: translateY(-2px); box-shadow: var(--u9-shadow-accent); }

/* ===== 总结 ===== */
.u9-summary-section {
  text-align: center;
  background: linear-gradient(180deg, var(--u9-bg) 0%, rgba(21, 176, 237, 0.02) 100%);
}
.u9-summary-box {
  max-width: 900px;
  margin: 0 auto;
  background: var(--u9-bg-white);
  border: 1px solid var(--u9-border-light);
  border-radius: 24px;
  padding: 56px;
  position: relative;
  overflow: hidden;
  box-shadow: var(--u9-shadow-md);
}
.u9-summary-box::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--u9-gradient);
}
.u9-summary-box::after {
  content: '';
  position: absolute;
  top: 50%; left: 50%;
  width: 600px; height: 600px;
  transform: translate(-50%, -50%);
  background: radial-gradient(circle, rgba(21, 176, 237, 0.03) 0%, transparent 70%);
  pointer-events: none;
}
.u9-summary-text { font-size: 1.05rem; color: var(--u9-text-secondary); line-height: 2; position: relative; z-index: 1; }
.u9-summary-text strong { color: var(--u9-accent-dark); font-weight: 600; }
.u9-summary-stats { display: flex; justify-content: center; gap: 60px; margin-top: 40px; position: relative; z-index: 1; flex-wrap: wrap; }
.u9-stat-item { text-align: center; }
.u9-stat-num {
  font-size: 2.5rem;
  font-weight: 900;
  background: var(--u9-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.u9-stat-label { font-size: 0.85rem; color: var(--u9-text-muted); margin-top: 4px; }

/* ===== CTA（参考页无独立 CTA，沿用总结板块的结束，这里补一个接联系体系的轻量 CTA） ===== */
.u9-cta {
  text-align: center;
  padding: 80px 5%;
  background: linear-gradient(180deg, var(--u9-bg) 0%, #e8f7fe 50%, var(--u9-bg) 100%);
  position: relative;
  z-index: 1;
}
.u9-cta h2 { font-size: 2.2rem; font-weight: 800; margin-bottom: 16px; color: var(--u9-text-dark); }
.u9-cta h2 .u9-grad { background: var(--u9-gradient); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.u9-cta p { font-size: 1.1rem; color: var(--u9-text-muted); margin-bottom: 32px; max-width: 640px; margin-left: auto; margin-right: auto; }
.u9-cta-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

/* ===== 动效 ===== */
@keyframes u9-fadeInUp { from { opacity: 0; transform: translateY(30px); } to { opacity: 1; transform: translateY(0); } }
@keyframes u9-fadeInDown { from { opacity: 0; transform: translateY(-30px); } to { opacity: 1; transform: translateY(0); } }
@keyframes u9-fadeIn { from { opacity: 0; } to { opacity: 1; } }

.u9-reveal { opacity: 0; transform: translateY(40px); transition: opacity 0.8s ease, transform 0.8s ease; }
.u9-reveal.active { opacity: 1; transform: translateY(0); }
.u9-reveal-delay-1 { transition-delay: 0.1s; }
.u9-reveal-delay-2 { transition-delay: 0.2s; }
.u9-reveal-delay-3 { transition-delay: 0.3s; }
.u9-reveal-delay-4 { transition-delay: 0.4s; }
.u9-reveal-delay-5 { transition-delay: 0.5s; }

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
  .u9-scenarios-grid, .u9-features-grid, .u9-deploy-grid { grid-template-columns: repeat(2, 1fr); }
  .u9-values-list { grid-template-columns: 1fr; }
  .u9-versions-grid { grid-template-columns: 1fr; }
  .u9-hero h1 { font-size: 2.5rem; }
}
@media (max-width: 767px) {
  .u9-section { padding: 60px 4%; }
  .u9-scenarios-grid, .u9-features-grid, .u9-deploy-grid { grid-template-columns: 1fr; }
  .u9-hero h1 { font-size: 2rem; }
  .u9-hero-subtitle { font-size: 1.1rem; }
  .u9-positioning-card, .u9-summary-box, .u9-solution-block, .u9-version-card { padding: 28px; }
  .u9-solution-flow { flex-direction: column; }
  .u9-solution-arrow { transform: rotate(90deg); }
  .u9-summary-stats { gap: 30px; }
  .u9-stat-num { font-size: 1.8rem; }
  .u9-hero-cta { flex-direction: column; align-items: stretch; }
}