/* ========================================
   四川辰昔科技 - 企业官网样式
   ======================================== */

:root {
  --color-primary: #2F6BFF;
  --color-primary-hover: #1E54E8;
  --color-primary-light: #EEF3FF;
  --color-secondary: #5bb4e5;
  --color-accent: #2F6BFF;
  --color-accent-light: #EEF3FF;
  --color-text: #1F2A44;
  --color-text-secondary: #4A5568;
  --color-text-light: #8A94A6;
  --color-bg: #ffffff;
  --color-bg-secondary: #F6F8FC;
  --color-bg-dark: #0F172A;
  --color-border: #E5EAF3;
  --color-success: #22C55E;
  --color-warning: #F59E0B;
  --color-error: #EF4444;
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.04);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
  --shadow-lg: 0 12px 24px rgba(0,0,0,0.1);
  --shadow-xl: 0 24px 48px rgba(0,0,0,0.12);
  --gradient-primary: linear-gradient(135deg, #2F6BFF 0%, #5bb4e5 100%);
  --gradient-hero: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.6;
  padding-top: 80px;
  overflow-x: hidden;
}

/* ========================================
   动画关键帧
   ======================================== */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes fadeInLeft {
  from { opacity: 0; transform: translateX(-30px); }
  to { opacity: 1; transform: translateX(0); }
}
@keyframes fadeInRight {
  from { opacity: 0; transform: translateX(30px); }
  to { opacity: 1; transform: translateX(0); }
}
@keyframes scaleIn {
  from { opacity: 0; transform: scale(0.9); }
  to { opacity: 1; transform: scale(1); }
}
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}
@keyframes slideInDown {
  from { opacity: 0; transform: translateY(-100%); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes gradientMove {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}
@keyframes heroFloat {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}
@keyframes shimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}
@keyframes countUp {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes ripple {
  0% { transform: scale(0); opacity: 0.5; }
  100% { transform: scale(4); opacity: 0; }
}

.animate-fade-in-up { animation: fadeInUp 0.6s ease forwards; }
.animate-fade-in-left { animation: fadeInLeft 0.6s ease forwards; }
.animate-fade-in-right { animation: fadeInRight 0.6s ease forwards; }
.animate-scale-in { animation: scaleIn 0.5s ease forwards; }
.animate-float { animation: float 3s ease-in-out infinite; }
.animate-delay-1 { animation-delay: 0.1s; }
.animate-delay-2 { animation-delay: 0.2s; }
.animate-delay-3 { animation-delay: 0.3s; }
.animate-delay-4 { animation-delay: 0.4s; }
.animate-delay-5 { animation-delay: 0.5s; }

/* 滚动触发动画 */
.scroll-animate {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.7s cubic-bezier(0.4, 0, 0.2, 1), transform 0.7s cubic-bezier(0.4, 0, 0.2, 1);
}
.scroll-animate.visible {
  opacity: 1;
  transform: translateY(0);
}
/* 交错动画 */
.scroll-animate.stagger-1 { transition-delay: 0.1s; }
.scroll-animate.stagger-2 { transition-delay: 0.2s; }
.scroll-animate.stagger-3 { transition-delay: 0.3s; }
.scroll-animate.stagger-4 { transition-delay: 0.4s; }
/* 从左侧进入 */
.scroll-animate.from-left {
  opacity: 0;
  transform: translateX(-40px);
}
.scroll-animate.from-left.visible {
  opacity: 1;
  transform: translateX(0);
}
/* 从右侧进入 */
.scroll-animate.from-right {
  opacity: 0;
  transform: translateX(40px);
}
.scroll-animate.from-right.visible {
  opacity: 1;
  transform: translateX(0);
}
/* 缩放进入 */
.scroll-animate.scale-in {
  opacity: 0;
  transform: scale(0.9);
}
.scroll-animate.scale-in.visible {
  opacity: 1;
  transform: scale(1);
}
/* 适合谁卡片特殊处理 - 保持高低差 */
.fit-card.fit.scroll-animate.visible {
  transform: translateY(-10px);
}

/* ========================================
   导航栏
   ======================================== */
.nav-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  width: 100%;
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
  z-index: 1000;
  transition: all var(--transition-normal);
  display: flex;
  justify-content: center;
}
.nav-header.scrolled {
  box-shadow: var(--shadow-md);
}
.nav-container {
  width: 100%;
  max-width: 1280px;
  padding: 0 48px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
}
.nav-logo {
  display: flex;
  align-items: center;
  text-decoration: none;
  flex-shrink: 0;
}
.nav-logo img {
  height: 70px;
  width: auto;
  object-fit: contain;
}
.nav-logo-text {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: 1px;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 20px;
  list-style: none;
  margin: 0 0 0 24px;
  padding: 0;
}
.nav-right {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-left: 24px;
}
.nav-link {
  color: var(--color-text-secondary);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  padding: 8px 0;
  position: relative;
  transition: color var(--transition-fast);
  white-space: nowrap;
}
.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-primary);
  transition: width var(--transition-fast);
}
.nav-link:hover, .nav-link.active {
  color: var(--color-primary);
}
.nav-link:hover::after, .nav-link.active::after {
  width: 100%;
}
.lang-select {
  padding: 6px 12px;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  background: var(--color-bg);
  font-size: 0.875rem;
  cursor: pointer;
  transition: all var(--transition-fast);
}
.lang-select:hover {
  border-color: var(--color-primary);
}
.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  padding: 8px;
  color: var(--color-text);
}
.mobile-menu {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
  padding: 16px 24px;
  box-shadow: var(--shadow-lg);
}
.mobile-menu.open { display: block; animation: slideInDown 0.3s ease; }
.mobile-menu ul { list-style: none; margin: 0; padding: 0; }
.mobile-menu .nav-link { display: block; padding: 12px 0; border-bottom: 1px solid var(--color-border); }
.mobile-lang-wrapper { padding: 16px 0 8px; border-top: 1px solid var(--color-border); margin-top: 8px; }
.mobile-menu .mobile-lang-select { display: block !important; width: 100%; padding: 10px 12px; font-size: 0.95rem; }

@media (max-width: 1100px) {
  .nav-links { display: none; }
  .lang-select:not(.mobile-lang-select) { display: none; }
  .mobile-menu-btn { display: block; }
}

/* ========================================
   Hero 区域 - 左右两栏布局
   ======================================== */
.hero {
  position: relative;
  min-height: auto;
  padding: 80px 0 60px;
  background: linear-gradient(180deg, #f8fafc 0%, #eef5ff 100%);
  overflow: visible;
  display: flex;
  align-items: center;
}
.hero-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
  z-index: 2;
  width: 100%;
}
.hero-grid {
  display: grid;
  grid-template-columns: 50% 50%;
  gap: 0;
  align-items: center;
  position: relative;
}
@media (max-width: 900px) {
  .hero {
    min-height: auto;
    padding: 60px 0 40px;
  }
  .hero-grid {
    grid-template-columns: 1fr;
    text-align: center;
  }
  .hero-cta {
    justify-content: center;
  }
}
.hero-content {
  text-align: left;
  position: relative;
  z-index: 3;
}
@media (max-width: 900px) {
  .hero-content {
    text-align: center;
  }
}
.hero-title {
  font-size: clamp(2rem, 3.5vw, 2.75rem);
  font-weight: 700;
  color: #1F2A44;
  line-height: 1.3;
  margin-bottom: 20px;
  letter-spacing: -0.02em;
}
@media (min-width: 1024px) {
  .hero-title {
    font-size: 40px;
  }
}
.hero-title .highlight {
  color: #2F6BFF;
  background: none;
  -webkit-background-clip: unset;
  -webkit-text-fill-color: #2F6BFF;
  background-clip: unset;
}
.hero-subtitle {
  font-size: 1.0625rem;
  color: #4A5568;
  line-height: 1.6;
  margin-bottom: 28px;
  max-width: 540px;
}
@media (max-width: 900px) {
  .hero-subtitle {
    margin-left: auto;
    margin-right: auto;
  }
}
.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}
.hero-trust-note {
  margin-top: 14px;
  font-size: 0.8125rem;
  color: #8A94A6;
}
/* Hero 图片 - 融入背景效果 */
.hero-image {
  position: absolute;
  right: -5%;
  top: -80px;
  width: 60%;
  max-width: 700px;
  z-index: 1;
  pointer-events: none;
}
@media (max-width: 900px) {
  .hero-image {
    position: relative;
    right: auto;
    top: auto;
    transform: none;
    width: 100%;
    max-width: 500px;
    margin: 30px auto 0;
    opacity: 0.9;
  }
}
.hero-banner {
  width: 100%;
  height: auto;
  border-radius: 0;
  box-shadow: none;
  opacity: 0.75;
  transition: opacity 0.3s ease;
  animation: heroFloat 6s ease-in-out infinite;
}
@media (max-width: 900px) {
  .hero-banner {
    opacity: 0.9;
    border-radius: 16px;
    box-shadow: var(--shadow-lg);
  }
}

/* ========================================
   信任标签横条 - 降权处理
   ======================================== */
.trust-tags-section {
  background: linear-gradient(180deg, #ffffff 0%, #f8fafc 100%);
  padding: 20px 0;
  border-bottom: 1px solid rgba(0,0,0,0.03);
}
.trust-tags-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  max-width: 1100px;
  margin: 0 auto;
  padding: 16px 24px;
  background: rgba(255,255,255,0.8);
  border: 1px solid rgba(47,107,255,0.08);
  border-radius: 16px;
  box-shadow: 0 2px 12px rgba(47,107,255,0.04);
}
@media (max-width: 900px) {
  .trust-tags-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (max-width: 480px) {
  .trust-tags-grid {
    grid-template-columns: 1fr;
  }
}
.trust-tag {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 12px 16px;
  background: linear-gradient(135deg, #f8fafc 0%, #ffffff 100%);
  border: 1px solid rgba(47,107,255,0.1);
  border-radius: 12px;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  transition: all 0.3s ease;
  text-align: center;
}
.trust-tag:hover {
  color: var(--color-primary);
  border-color: var(--color-primary);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(47,107,255,0.15);
}
.trust-tag i {
  width: 18px;
  height: 18px;
  color: #2F6BFF;
  opacity: 0.8;
}

/* ========================================
   目标客户区域 - 压缩
   ======================================== */
.target-customers-section {
  background: var(--color-bg);
  padding: 48px 0;
}
.target-customers-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  max-width: 1100px;
  margin: 0 auto;
}
@media (max-width: 900px) {
  .target-customers-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (max-width: 500px) {
  .target-customers-grid {
    grid-template-columns: 1fr;
  }
}
.target-customer-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 20px;
  background: var(--color-bg-secondary);
  border-radius: 12px;
  border: 1px solid transparent;
  transition: all var(--transition-fast);
}
.target-customer-item:hover {
  border-color: var(--color-border);
  background: white;
}
.target-customer-icon {
  flex-shrink: 0;
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, var(--color-accent), var(--color-primary));
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.target-customer-icon i {
  width: 18px;
  height: 18px;
  color: white;
  stroke-width: 2;
}
.target-customer-text {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-text);
  line-height: 1.4;
  margin: 0;
}

/* ========================================
   适合谁模块 - 三列对比
   ======================================== */
.fit-section {
  background: var(--color-bg);
  padding: 60px 0;
}
.fit-header {
  text-align: center;
  margin-bottom: 40px;
}
.fit-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: #1F2A44;
  margin-bottom: 12px;
}
.fit-subtitle {
  font-size: 0.9rem;
  color: #4A5568;
  max-width: 600px;
  margin: 0 auto;
}
.fit-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}
@media (max-width: 900px) {
  .fit-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }
}
.fit-card {
  padding: 28px 28px 28px 32px;
  border-radius: 16px;
  border: 1px solid #E5EAF3;
  background: #FFFFFF;
  position: relative;
  transition: all var(--transition-normal);
}
.fit-card:hover {
  box-shadow: 0 12px 40px rgba(0,0,0,0.08);
  transform: translateY(-6px);
}
/* 适合卡片 - 领先感 */
.fit-card.fit {
  transform: translateY(-12px);
  box-shadow: 0 16px 48px rgba(34,197,94,0.15);
  border-color: rgba(34,197,94,0.3);
}
.fit-card.fit:hover {
  transform: translateY(-16px);
  box-shadow: 0 20px 60px rgba(34,197,94,0.2);
}
/* 不合适卡片 - 降权 */
.fit-card.not-fit {
  opacity: 0.9;
}
.fit-card::before {
  content: '';
  position: absolute;
  left: 0;
  top: 16px;
  bottom: 16px;
  width: 4px;
  border-radius: 0 4px 4px 0;
}
.fit-card.fit::before {
  background: #22C55E;
}
.fit-card.not-best::before {
  background: #F59E0B;
}
.fit-card.not-fit::before {
  background: #EF4444;
}
.fit-card-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
}
.fit-card-icon {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}
.fit-card-icon i {
  width: 16px;
  height: 16px;
  stroke-width: 2.5;
}
.fit-card.fit .fit-card-icon {
  background: #ECFDF3;
  color: #22C55E;
}
.fit-card.not-best .fit-card-icon {
  background: #FFFBEB;
  color: #F59E0B;
}
.fit-card.not-fit .fit-card-icon {
  background: #FEF2F2;
  color: #EF4444;
}
.fit-card-title {
  font-size: 1rem;
  font-weight: 600;
  color: #1F2A44;
}
.fit-card-list {
  list-style: none;
  padding: 0;
  margin: 0;
}
.fit-card-list li {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  padding: 6px 0;
  font-size: 0.85rem;
  color: #4A5568;
  line-height: 1.5;
}
.fit-card-list li i {
  width: 14px;
  height: 14px;
  flex-shrink: 0;
  margin-top: 2px;
}
.fit-card.fit .fit-card-list li i {
  color: #16a34a;
}
.fit-card.not-best .fit-card-list li i {
  color: #3b82f6;
}
.fit-card.not-fit .fit-card-list li i {
  color: #ef4444;
}

/* ========================================
   按钮 - 优化
   ======================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  font-size: 0.9375rem;
  font-weight: 500;
  border-radius: 8px;
  text-decoration: none;
  cursor: pointer;
  border: none;
  transition: all var(--transition-fast);
  position: relative;
  overflow: hidden;
  min-height: 46px;
  white-space: nowrap;
}
.btn-primary {
  background: linear-gradient(135deg, #2F6BFF 0%, #1E54E8 100%);
  color: #FFFFFF;
  box-shadow: 0 4px 14px rgba(47,107,255,0.35);
}
.btn-primary:hover {
  background: linear-gradient(135deg, #1E54E8 0%, #1a47c7 100%);
  transform: translateY(-3px);
  box-shadow: 0 8px 25px rgba(47,107,255,0.45);
}
.btn-primary:active {
  transform: translateY(0);
}
/* 按钮涟漪效果 */
.btn .ripple {
  position: absolute;
  border-radius: 50%;
  background: rgba(255,255,255,0.4);
  animation: ripple 0.6s ease-out;
  pointer-events: none;
}
.btn-lg {
  padding: 14px 32px;
  font-size: 1rem;
  height: 48px;
}
.btn-secondary {
  background: transparent;
  color: #2F6BFF;
  border: 1px solid #2F6BFF;
}
.btn-secondary:hover {
  background: #EEF3FF;
}
.btn-white {
  background: white;
  color: #2F6BFF;
  font-weight: 600;
}
.btn-white:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}
.btn-outline-white {
  background: transparent;
  color: white;
  border: 1px solid rgba(255,255,255,0.5);
}
.btn-outline-white:hover {
  background: rgba(255,255,255,0.1);
  border-color: white;
}

/* ========================================
   Section 通用 - 差异化间距
   ======================================== */
.section {
  padding: 80px 0;
  position: relative;
}
.section-sm {
  padding: 48px 0;
}
.section-lg {
  padding: 120px 0;
}
.section-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}
.section-header {
  text-align: center;
  max-width: 600px;
  margin: 0 auto 48px;
}
.section-label {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 12px;
}
.section-title {
  display: inline-block;
  font-size: clamp(1.5rem, 3vw, 1.875rem);
  font-weight: 700;
  color: white;
  background: linear-gradient(135deg, var(--color-accent), var(--color-primary));
  padding: 10px 28px;
  border-radius: 100px;
  margin-bottom: 16px;
  line-height: 1.4;
}
.section-title-dark {
  background: none;
  color: var(--color-text);
  padding: 0;
}
.section-desc {
  font-size: 1rem;
  color: var(--color-text-secondary);
  line-height: 1.7;
}

/* ========================================
   卡片 - 层级优化
   ======================================== */
.card {
  background: var(--color-bg);
  border-radius: 16px;
  padding: 28px;
  border: 1px solid var(--color-border);
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}
.card:hover {
  border-color: var(--color-primary);
  box-shadow: 0 8px 30px rgba(47,107,255,0.12);
  transform: translateY(-4px);
}
.card-icon {
  width: 48px;
  height: 48px;
  background: var(--color-bg-secondary);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
  transition: all var(--transition-normal);
}
.card-icon i {
  width: 24px;
  height: 24px;
  color: var(--color-accent);
  stroke-width: 2;
}
.card:hover .card-icon {
  background: linear-gradient(135deg, var(--color-accent), var(--color-primary));
}
.card:hover .card-icon i {
  color: white;
}
.card-title {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 8px;
}
.card-desc {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
}

/* 服务卡片网格 - 优化 */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
}
.services-grid .card {
  padding: 24px;
}
.services-grid .card-icon {
  width: 48px;
  height: 48px;
  margin-bottom: 16px;
  background: linear-gradient(135deg, var(--color-primary-light) 0%, #e0e7ff 100%);
}
.services-grid .card-icon i {
  width: 24px;
  height: 24px;
}

/* ========================================
   流程步骤 - 压缩
   ======================================== */
.process-section {
  background: var(--color-bg-secondary);
  padding: 60px 0;
}
.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
@media (max-width: 900px) {
  .process-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (max-width: 500px) {
  .process-grid {
    grid-template-columns: 1fr;
  }
}
.process-step {
  position: relative;
  padding: 20px;
  background: var(--color-bg);
  border-radius: 14px;
  border: 1px solid var(--color-border);
  transition: all var(--transition-fast);
}
.process-step:hover {
  border-color: var(--color-primary);
}
.process-number {
  position: absolute;
  top: -10px;
  left: 16px;
  width: 28px;
  height: 28px;
  background: linear-gradient(135deg, var(--color-accent), var(--color-primary));
  color: white;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.85rem;
}
.process-title {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--color-text);
  margin: 10px 0 6px;
}
.process-desc {
  font-size: 0.8rem;
  color: var(--color-text-secondary);
  line-height: 1.5;
}
.deliverables-box {
  background: linear-gradient(135deg, var(--color-accent), var(--color-primary));
  color: white;
  padding: 20px 28px;
  border-radius: 14px;
  margin-top: 32px;
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
}
.deliverables-title {
  font-size: 0.95rem;
  font-weight: 600;
  margin: 0;
  white-space: nowrap;
}
.deliverables-list {
  font-size: 0.85rem;
  opacity: 0.95;
  line-height: 1.5;
  margin: 0;
}

/* ========================================
   Why Us 区域 - 压缩
   ======================================== */
.why-us-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
@media (max-width: 900px) {
  .why-us-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (max-width: 600px) {
  .why-us-grid {
    grid-template-columns: 1fr;
  }
}
.why-us-item {
  display: flex;
  gap: 14px;
  padding: 20px;
  background: var(--color-bg);
  border-radius: 12px;
  border: 1px solid var(--color-border);
  transition: all var(--transition-fast);
}
.why-us-item:hover {
  border-color: var(--color-primary);
}
.why-us-icon {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  background: var(--color-accent-light);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.why-us-icon i {
  width: 20px;
  height: 20px;
  color: var(--color-accent);
  stroke-width: 2;
}
.why-us-title {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 4px;
}
.why-us-desc {
  font-size: 0.8rem;
  color: var(--color-text-secondary);
  line-height: 1.5;
}

/* ========================================
   CTA 区域 - 强化
   ======================================== */
.cta-section {
  background: linear-gradient(135deg, #2F6BFF 0%, #1E54E8 50%, #5bb4e5 100%);
  color: white;
  padding: 100px 0;
  position: relative;
  overflow: hidden;
}
.cta-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.06'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}
.cta-content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 600px;
  margin: 0 auto;
}
.cta-title {
  font-size: clamp(1.75rem, 4vw, 2.25rem);
  font-weight: 700;
  margin-bottom: 12px;
}
.cta-desc {
  font-size: 1rem;
  opacity: 0.9;
  margin-bottom: 28px;
  line-height: 1.6;
}
.cta-buttons {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
}
.cta-buttons .btn-white {
  padding: 14px 32px;
  font-size: 1rem;
}

/* ========================================
   信任标签 - 压缩
   ======================================== */
.trust-badges {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
  padding: 32px 0;
}
.trust-badge {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 10px;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  transition: all var(--transition-fast);
}
.trust-badge:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}
.trust-badge-icon {
  width: 16px;
  height: 16px;
  color: var(--color-accent);
  stroke-width: 2;
}

/* ========================================
   FAQ 手风琴
   ======================================== */
.faq-list {
  max-width: 800px;
  margin: 0 auto;
}
.faq-item {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 16px;
  margin-bottom: 16px;
  overflow: hidden;
  transition: all var(--transition-normal);
}
.faq-item:hover {
  border-color: rgba(47,107,255,0.3);
  box-shadow: 0 4px 20px rgba(47,107,255,0.08);
}
.faq-item.open {
  border-color: var(--color-primary);
  box-shadow: 0 8px 30px rgba(47,107,255,0.12);
}
.faq-question {
  width: 100%;
  padding: 22px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: none;
  border: none;
  text-align: left;
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--color-text);
  cursor: pointer;
  transition: all var(--transition-fast);
}
.faq-question:hover {
  color: var(--color-primary);
}
.faq-icon {
  font-size: 1.5rem;
  color: var(--color-primary);
  opacity: 0.6;
  transition: all var(--transition-fast);
}
.faq-item.open .faq-icon {
  transform: rotate(45deg);
  opacity: 1;
}
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}
.faq-item.open .faq-answer {
  max-height: 500px;
}
.faq-answer-content {
  padding: 0 24px 24px;
  color: var(--color-text-secondary);
  line-height: 1.8;
  font-size: 0.95rem;
}

/* ========================================
   案例卡片 - 左右两列布局（参考设计稿）
   ======================================== */
.cases-section {
  background: var(--color-bg-secondary);
  padding: 60px 0 50px;
}
.cases-home-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
  align-items: stretch;
}
@media (max-width: 900px) {
  .cases-home-grid {
    grid-template-columns: 1fr;
  }
}
/* 案例卡片 - 一张图片覆盖整个卡片 */
.case-home-card {
  border: 1px solid #e5eaf3;
  border-radius: 20px;
  overflow: hidden;
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
  text-decoration: none;
  height: 100%;
  box-shadow: 0 4px 20px rgba(47,107,255,0.06);
  position: relative;
  background: #ffffff;
}
.case-home-card:hover {
  box-shadow: 0 12px 40px rgba(47,107,255,0.12);
  transform: translateY(-6px);
  border-color: rgba(47,107,255,0.2);
}
/* 图片区域 - 绝对定位覆盖整个卡片 */
.case-home-image {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  overflow: hidden;
  z-index: 0;
}
.case-home-image img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: right top;
  transition: transform 0.3s ease, opacity 0.3s ease;
  opacity: 0.4;
}
.case-home-card:hover .case-home-image img {
  transform: scale(1.02);
}
/* 内容遮罩层 - 控制图片显示区域 */
.case-home-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 1;
  pointer-events: none;
  /* 上半部分透明显示图片，下半部分更白更淡 */
  background: 
    linear-gradient(to bottom,
      transparent 0%,
      transparent 180px,
      rgba(255,255,255,0.5) 200px,
      rgba(255,255,255,0.85) 220px,
      rgba(255,255,255,1) 250px,
      rgba(255,255,255,1) 100%
    );
  /* 叠加从左到右的渐变，让右侧图片更淡地透出 */
  mask-image: linear-gradient(to right,
    rgba(0,0,0,1) 0%,
    rgba(0,0,0,1) 50%,
    rgba(0,0,0,0.85) 65%,
    rgba(0,0,0,0.6) 80%,
    rgba(0,0,0,0.35) 100%
  );
  -webkit-mask-image: linear-gradient(to right,
    rgba(0,0,0,1) 0%,
    rgba(0,0,0,1) 50%,
    rgba(0,0,0,0.85) 65%,
    rgba(0,0,0,0.6) 80%,
    rgba(0,0,0,0.35) 100%
  );
}
/* 内容区域 */
.case-home-content {
  padding: 220px 28px 28px 28px;
  display: flex;
  flex-direction: column;
  position: relative;
  z-index: 2;
  flex: 1;
  background: transparent;
}
.case-home-content::before {
  display: none;
}
.case-home-content::after {
  display: none;
}
.case-home-card::after {
  display: none;
}
/* 标签样式 - 放在标题下方 */
.case-home-industry {
  display: inline-block;
  padding: 5px 12px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  color: white;
  font-size: 0.7rem;
  font-weight: 500;
  border-radius: 20px;
  margin-bottom: 12px;
  width: fit-content;
  order: 2; /* 使用flexbox order让标签排在标题后面 */
}
.case-home-title {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 8px;
  order: 1; /* 标题排在第一位 */
}
.case-home-desc {
  font-size: 0.85rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
  margin-bottom: 16px;
  order: 3; /* 描述排在第三位 */
}
/* 案例详情区域 - 挑战与解决方案 */
.case-home-details {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: auto;
  padding-top: 16px;
  border-top: 1px solid rgba(0,0,0,0.06);
  order: 4; /* 详情排在最后 */
}
.case-home-detail-section h4 {
  font-size: 0.75rem;
  color: var(--color-primary);
  margin-bottom: 10px;
  font-weight: 600;
}
.case-home-detail-section ul {
  list-style: none;
  padding: 0;
  margin: 0;
}
.case-home-detail-section li {
  font-size: 0.8rem;
  color: var(--color-text-secondary);
  padding: 4px 0;
  display: flex;
  align-items: flex-start;
  gap: 6px;
  line-height: 1.4;
}
.case-home-detail-section li::before {
  content: '✓';
  color: var(--color-primary);
  font-weight: 600;
  flex-shrink: 0;
}
/* 案例统计数据 */
.case-home-stats {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding-top: 14px;
  border-top: 1px solid rgba(0,0,0,0.06);
  margin-top: auto;
}
.case-home-stat {
  text-align: left;
}
.case-home-stat-label {
  font-size: 0.7rem;
  color: var(--color-text-light);
  margin-bottom: 3px;
}
.case-home-stat-value {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-primary);
  display: flex;
  align-items: center;
  gap: 8px;
}
.case-home-stat-value::before {
  content: '✓';
  color: var(--color-success);
  font-weight: 700;
}
/* 案例查看更多按钮 - 与CTA衔接 */
.cases-view-more {
  text-align: center;
  margin-top: 32px;
  padding-top: 20px;
  position: relative;
}
.cases-view-more::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 3px;
  background: linear-gradient(90deg, transparent, var(--color-primary), transparent);
  border-radius: 2px;
  opacity: 0.3;
}
.cases-view-more .btn-primary {
  padding: 14px 32px;
  font-size: 0.95rem;
}

/* 案例统计提示区域 */
.cases-more-stats {
  margin-top: 40px;
  padding: 32px 40px;
  background: linear-gradient(135deg, #f8fafc 0%, var(--color-primary-light) 100%);
  border: 1px solid rgba(47, 107, 255, 0.15);
  border-radius: 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.cases-more-inner {
  display: flex;
  align-items: center;
  gap: 20px;
}
.cases-more-number {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1;
}
.cases-more-label {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 4px;
}
.cases-more-desc {
  font-size: 0.85rem;
  color: var(--color-text-secondary);
}
@media (max-width: 700px) {
  .cases-more-stats {
    flex-direction: column;
    text-align: center;
    padding: 28px 24px;
  }
  .cases-more-inner {
    flex-direction: column;
    gap: 12px;
  }
}

.cases-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  align-items: start;
}
.cases-list .case-card {
  min-height: 120px;
}
@media (max-width: 800px) {
  .cases-list {
    grid-template-columns: 1fr;
  }
}
.case-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 20px;
  overflow: hidden;
  transition: all var(--transition-normal);
}
.case-card:hover {
  border-color: rgba(47,107,255,0.3);
  box-shadow: 0 12px 40px rgba(47,107,255,0.1);
  transform: translateY(-4px);
}
.case-header {
  padding: 16px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  background: var(--color-bg-secondary);
  transition: all var(--transition-fast);
  min-height: 100px;
}
.case-header:hover {
  background: var(--color-primary-light);
}
.case-header-left {
  display: flex;
  align-items: center;
  gap: 12px;
}
.case-icon {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--color-accent), var(--color-primary));
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  flex-shrink: 0;
}
.case-title {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--color-text);
}
/* 案例标签样式 */
.case-industry-tag {
  display: inline-block;
  padding: 4px 12px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  color: white;
  font-size: 0.75rem;
  border-radius: 12px;
  box-shadow: 0 2px 8px rgba(47, 107, 255, 0.3);
}
.case-tag {
  display: inline-block;
  padding: 4px 10px;
  background: var(--color-primary-light);
  color: var(--color-primary);
  font-size: 0.7rem;
  border-radius: 8px;
  box-shadow: 0 2px 6px rgba(47, 107, 255, 0.15);
}
.case-toggle {
  font-size: 1.1rem;
  color: var(--color-text-light);
  transition: transform var(--transition-fast);
  flex-shrink: 0;
}
.case-card.open .case-toggle {
  transform: rotate(45deg);
  color: var(--color-accent);
}
.case-detail {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-slow);
}
.case-card.open .case-detail {
  max-height: 2000px;
}
.case-content {
  padding: 20px;
  display: grid;
  gap: 16px;
}
.case-section-title {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--color-accent);
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 6px;
}
.case-section-title::before {
  content: '';
  width: 3px;
  height: 12px;
  background: var(--color-accent);
  border-radius: 2px;
}
.case-text {
  color: var(--color-text-secondary);
  line-height: 1.6;
  font-size: 0.85rem;
}
.case-list {
  list-style: none;
  padding: 0;
  margin: 0;
}
.case-list li {
  position: relative;
  padding-left: 16px;
  margin-bottom: 4px;
  color: var(--color-text-secondary);
  line-height: 1.5;
  font-size: 0.8rem;
}
.case-list li::before {
  content: '•';
  position: absolute;
  left: 0;
  color: var(--color-accent);
  font-weight: bold;
}
.case-stack {
  background: var(--color-bg-secondary);
  padding: 10px 14px;
  border-radius: 8px;
  font-family: 'SF Mono', Monaco, monospace;
  font-size: 0.75rem;
  color: var(--color-text-secondary);
}
/* 案例指标展示 */
.case-metrics {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: 12px;
  margin-top: 8px;
}
.metric-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 12px;
  background: linear-gradient(135deg, var(--color-primary-light) 0%, #f0f4ff 100%);
  border-radius: 10px;
  border: 1px solid rgba(47, 107, 255, 0.2);
}
.metric-value {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1;
  margin-bottom: 4px;
}
.metric-label {
  font-size: 0.75rem;
  color: var(--color-text-secondary);
  text-align: center;
}

/* ========================================
   表单
   ======================================== */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 48px;
}
@media (max-width: 900px) {
  .contact-grid { grid-template-columns: 1fr; }
}
.contact-info {
  background: linear-gradient(135deg, var(--color-primary), #1557b0);
  color: white;
  padding: 40px;
  border-radius: 20px;
  position: relative;
  overflow: hidden;
}
.contact-info::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -50%;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 70%);
}
.contact-info-title {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 24px;
  position: relative;
}
.contact-email {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 0;
  color: white;
  text-decoration: none;
  font-size: 1rem;
  transition: all var(--transition-fast);
  position: relative;
}
.contact-email:hover {
  transform: translateX(8px);
}
.contact-email-icon {
  font-size: 1.25rem;
  width: 20px;
  height: 20px;
  stroke-width: 2;
}
.contact-note {
  margin-top: 32px;
  padding-top: 24px;
  border-top: 1px solid rgba(255,255,255,0.2);
  font-size: 0.9rem;
  opacity: 0.9;
  position: relative;
}
.form-group {
  margin-bottom: 20px;
}
.form-label {
  display: block;
  margin-bottom: 8px;
  font-weight: 500;
  font-size: 0.95rem;
  color: var(--color-text);
}
.form-input, .form-select, .form-textarea {
  width: 100%;
  padding: 14px 18px;
  border: 2px solid var(--color-border);
  border-radius: 12px;
  font-size: 1rem;
  transition: all var(--transition-normal);
  background: var(--color-bg);
}
.form-input:focus, .form-select:focus, .form-textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 4px rgba(47,107,255,0.1);
  background: #fafbff;
}
.form-input:hover, .form-select:hover, .form-textarea:hover {
  border-color: #c5d4f5;
}
.form-input.error, .form-textarea.error {
  border-color: var(--color-error);
}
.form-error {
  color: var(--color-error);
  font-size: 0.85rem;
  margin-top: 6px;
}
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
@media (max-width: 600px) {
  .form-row { grid-template-columns: 1fr; }
}

/* ========================================
   页脚
   ======================================== */
.footer {
  background: var(--color-bg-dark);
  color: white;
  padding: 60px 0 40px;
}
.footer-container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
}
.footer-main {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}
.footer-brand {
  max-width: 340px;
  flex-shrink: 0;
}
.footer-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}
.footer-logo img {
  height: 44px;
  width: auto;
  object-fit: contain;
}
.footer-logo-text {
  font-size: 1.25rem;
  font-weight: 600;
}
.footer-desc {
  font-size: 0.9rem;
  color: rgba(255,255,255,0.7);
  line-height: 1.7;
}
.footer-links {
  display: flex;
  gap: 48px;
}
.footer-links-title {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 16px;
}
.footer-links ul {
  list-style: none;
  padding: 0;
  margin: 0;
}
.footer-links a {
  display: block;
  padding: 6px 0;
  color: rgba(255,255,255,0.7);
  text-decoration: none;
  font-size: 0.9rem;
  transition: all var(--transition-fast);
}
.footer-links a:hover {
  color: white;
  transform: translateX(4px);
}
.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  padding-top: 24px;
  font-size: 0.85rem;
  color: rgba(255,255,255,0.5);
}
.footer-legal {
  display: flex;
  gap: 24px;
}
.footer-legal a {
  color: rgba(255,255,255,0.5);
  text-decoration: none;
  transition: color var(--transition-fast);
}
.footer-legal a:hover {
  color: white;
}

/* ========================================
   Toast 通知
   ======================================== */
.toast {
  position: fixed;
  bottom: 32px;
  right: 32px;
  padding: 16px 24px;
  background: var(--color-text);
  color: white;
  border-radius: 12px;
  box-shadow: var(--shadow-xl);
  transform: translateY(100px);
  opacity: 0;
  transition: all var(--transition-normal);
  z-index: 9999;
}
.toast.show {
  transform: translateY(0);
  opacity: 1;
}
.toast.success { background: var(--color-success); }
.toast.error { background: var(--color-error); }

/* ========================================
   工作方式 - 深蓝色背景新版
   ======================================== */
.process-section-new {
  background: linear-gradient(135deg, #2F6BFF 0%, #1F4FD8 100%);
  padding: 60px 0;
}
.section-header-white {
  text-align: center;
  margin-bottom: 40px;
}
.section-title-white {
  display: inline-block;
  font-size: 1.5rem;
  font-weight: 700;
  color: white;
  background: rgba(255,255,255,0.15);
  padding: 10px 28px;
  border-radius: 100px;
  margin-bottom: 12px;
}
.section-desc-white {
  font-size: 0.9rem;
  color: rgba(255,255,255,0.85);
  max-width: 600px;
  margin: 0 auto;
}
.process-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  max-width: 960px;
  margin: 0 auto;
}
@media (max-width: 900px) {
  .process-steps {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (max-width: 500px) {
  .process-steps {
    grid-template-columns: 1fr;
  }
}
.process-step-new {
  background: rgba(255,255,255,0.12);
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: 12px;
  padding: 24px 16px;
  text-align: center;
  transition: all var(--transition-fast);
}
.process-step-new:hover {
  background: rgba(255,255,255,0.18);
  transform: translateY(-2px);
}
.step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  background: white;
  color: #2F6BFF;
  font-weight: 700;
  font-size: 1rem;
  border-radius: 50%;
  margin-bottom: 12px;
}
.step-title {
  font-size: 1rem;
  font-weight: 600;
  color: white;
  margin-bottom: 8px;
}
.step-desc {
  font-size: 0.8rem;
  color: rgba(255,255,255,0.8);
  line-height: 1.5;
  margin: 0;
}
.process-cta {
  text-align: center;
  margin-top: 32px;
}

/* ========================================
   响应式
   ======================================== */
@media (max-width: 768px) {
  body { padding-top: 80px; }
  .nav-container { height: 80px; }
  .section { padding: 60px 0; }
  .section-sm { padding: 40px 0; }
  .hero { 
    min-height: auto;
    padding: 60px 0 40px;
    align-items: center;
  }
  .hero-container {
    padding: 0 24px;
  }
  .hero-title { font-size: 2rem; }
  .hero-image {
    transform: translateY(0);
  }
  .fit-card.fit {
    transform: translateY(0);
  }
  .case-home-card:not(.case-home-main) {
    transform: scale(1);
  }
  .cta-section { padding: 80px 0; }
  .footer-main { flex-direction: column; }
  .footer-links { flex-direction: column; gap: 32px; }
  .process-section { padding: 48px 0; }
  .process-section-new { padding: 48px 0; }
}


/* ========================================
   额外优化样式
   ======================================== */

/* 链接悬停效果增强 */
a {
  transition: color var(--transition-fast), transform var(--transition-fast);
}

/* 卡片悬停阴影增强 */
.card:hover,
.case-card:hover,
.case-home-card:hover,
.fit-card:hover {
  transform: translateY(-4px);
}

/* 图标动画 */
.card-icon i,
.why-us-icon i,
.trust-tag i {
  transition: transform var(--transition-fast);
}
.card:hover .card-icon i,
.why-us-item:hover .why-us-icon i {
  transform: scale(1.1);
}

/* 按钮加载状态 */
.btn.loading {
  pointer-events: none;
  opacity: 0.7;
}
.btn.loading::after {
  content: '';
  width: 16px;
  height: 16px;
  border: 2px solid transparent;
  border-top-color: currentColor;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  margin-left: 8px;
}
@keyframes spin {
  to { transform: rotate(360deg); }
}

/* 表单输入框聚焦动画 */
.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  transform: translateY(-1px);
}

/* 导航链接下划线动画优化 */
.nav-link::after {
  transition: width var(--transition-normal), left var(--transition-normal);
  left: 50%;
  transform: translateX(-50%);
}
.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
  left: 0;
  transform: translateX(0);
}

/* 页脚链接悬停效果 */
.footer-links a::before {
  content: '';
  display: inline-block;
  width: 0;
  height: 1px;
  background: white;
  transition: width var(--transition-fast);
  vertical-align: middle;
  margin-right: 0;
}
.footer-links a:hover::before {
  width: 8px;
  margin-right: 6px;
}

/* 统计数字渐变效果 */
.stat-number {
  background-size: 200% 200%;
  animation: gradientMove 3s ease infinite;
}

/* FAQ问题悬停效果 */
.faq-question:hover {
  background: var(--color-bg-secondary);
}

/* 案例标签悬停效果 */
.case-home-industry:hover {
  transform: scale(1.05);
}

/* 信任标签图标动画 */
.trust-tag:hover i {
  transform: scale(1.2);
}

/* 流程步骤数字脉冲效果 */
.step-number {
  position: relative;
}
.process-step-new:hover .step-number::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  border-radius: 50%;
  background: white;
  animation: pulse 1s ease-out;
  opacity: 0;
}

/* 适合谁卡片图标动画 */
.fit-card:hover .fit-card-icon {
  transform: scale(1.1);
}
.fit-card-icon {
  transition: transform var(--transition-fast);
}

/* 滚动条美化 */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}
::-webkit-scrollbar-track {
  background: var(--color-bg-secondary);
}
::-webkit-scrollbar-thumb {
  background: var(--color-border);
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--color-text-light);
}

/* 选中文本样式 */
::selection {
  background: var(--color-primary);
  color: white;
}

/* 图片懒加载占位 */
img[loading="lazy"] {
  background: linear-gradient(90deg, var(--color-bg-secondary) 25%, var(--color-bg) 50%, var(--color-bg-secondary) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
}

/* 打印样式优化 */
@media print {
  .nav-header,
  .mobile-menu,
  .cta-section,
  .footer {
    display: none !important;
  }
  body {
    padding-top: 0;
  }
  .section {
    padding: 20px 0;
  }
}


/* ========================================
   全面优化 - 增强版样式
   ======================================== */

/* 页面加载动画 */
@keyframes pageLoad {
  from { opacity: 0; }
  to { opacity: 1; }
}

body {
  animation: pageLoad 0.5s ease;
}

/* Hero区域增强 */
.hero-title {
  text-shadow: 0 2px 4px rgba(0,0,0,0.05);
}

.hero-title .highlight {
  position: relative;
  display: inline-block;
}

.hero-title .highlight::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 8px;
  background: linear-gradient(90deg, rgba(47,107,255,0.2), rgba(47,107,255,0.1));
  border-radius: 4px;
  z-index: -1;
}

/* 按钮悬停增强 */
.btn-primary::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
  transition: left 0.5s ease;
}

.btn-primary:hover::before {
  left: 100%;
}

/* 卡片悬停光效 */
.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, rgba(47,107,255,0.05) 0%, transparent 50%);
  opacity: 0;
  transition: opacity var(--transition-normal);
  border-radius: inherit;
  pointer-events: none;
}

.card:hover::before {
  opacity: 1;
}

/* 信任标签增强动画 */
.trust-tag {
  position: relative;
  overflow: hidden;
}

.trust-tag::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  background: rgba(47,107,255,0.1);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  transition: width 0.4s ease, height 0.4s ease;
}

.trust-tag:hover::before {
  width: 200%;
  height: 200%;
}

/* 适合谁卡片增强 */
.fit-card {
  overflow: hidden;
}

.fit-card::after {
  content: '';
  position: absolute;
  top: -50%;
  right: -50%;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle, rgba(255,255,255,0.8) 0%, transparent 70%);
  opacity: 0;
  transition: opacity var(--transition-normal);
  pointer-events: none;
}

.fit-card:hover::after {
  opacity: 0.3;
}

/* 流程步骤连接线 - 已移除 */
.process-steps {
  position: relative;
}

@media (max-width: 900px) {
  /* 保留响应式结构 */
}

.process-step-new {
  position: relative;
  z-index: 1;
}

/* 案例卡片图片悬停效果 */
.case-home-image-placeholder {
  position: relative;
  overflow: hidden;
}

.case-home-image-placeholder::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 50%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
  transition: left 0.6s ease;
}

.case-home-card:hover .case-home-image-placeholder::before {
  left: 150%;
}

/* CTA区域粒子效果 */
.cta-section::after {
  content: '';
  position: absolute;
  top: 20%;
  left: 10%;
  width: 100px;
  height: 100px;
  background: rgba(255,255,255,0.05);
  border-radius: 50%;
  animation: float 6s ease-in-out infinite;
}

/* FAQ展开动画增强 */
.faq-answer-content {
  transform-origin: top;
}

.faq-item.open .faq-answer-content {
  animation: fadeInUp 0.3s ease;
}

/* 表单输入框聚焦光晕 */
.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  background: linear-gradient(white, white) padding-box,
              linear-gradient(135deg, var(--color-primary), var(--color-secondary)) border-box;
  border: 2px solid transparent;
}

/* 页脚社交图标悬停 */
.footer-links a {
  position: relative;
}

.footer-links a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 1px;
  background: white;
  transition: width var(--transition-fast);
}

.footer-links a:hover::after {
  width: 100%;
}

/* 导航栏滚动时的微妙变化 */
.nav-header.scrolled {
  background: rgba(255,255,255,0.98);
}

.nav-header.scrolled .nav-logo img {
  transform: scale(0.95);
  transition: transform var(--transition-fast);
}

/* 移动端菜单动画增强 */
.mobile-menu {
  transform-origin: top;
}

.mobile-menu.open {
  animation: slideInDown 0.3s ease, fadeInUp 0.3s ease;
}

/* 统计数字闪烁效果 */
.stat-number {
  position: relative;
}

.stat-number::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.5), transparent);
  animation: shimmer 2s infinite;
  opacity: 0;
}

.stat-number:hover::after {
  opacity: 1;
}

/* 技术栈卡片图标动画 */
.tech-stack-card:hover i {
  animation: pulse 0.5s ease;
}

/* 解决方案卡片标签动画 */
.solution-category {
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.card:hover .solution-category {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(47,107,255,0.3);
}

/* 案例详情展开动画 */
.case-detail {
  transform-origin: top;
}

.case-card.open .case-detail {
  animation: scaleIn 0.3s ease;
}

/* 联系表单提交按钮加载状态 */
.btn-submit.submitting {
  background: linear-gradient(90deg, var(--color-primary), var(--color-secondary), var(--color-primary));
  background-size: 200% 100%;
  animation: gradientMove 1.5s linear infinite;
}

/* 页面切换过渡 */
.page-transition {
  animation: fadeInUp 0.5s ease;
}

/* 图片加载占位符 */
.img-placeholder {
  background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
}

/* 悬浮提示框 */
.tooltip {
  position: relative;
}

.tooltip::after {
  content: attr(data-tooltip);
  position: absolute;
  bottom: 100%;
  left: 50%;
  transform: translateX(-50%) translateY(-8px);
  padding: 8px 12px;
  background: var(--color-text);
  color: white;
  font-size: 0.75rem;
  border-radius: 6px;
  white-space: nowrap;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-fast);
  z-index: 100;
}

.tooltip:hover::after {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

/* 返回顶部按钮 */
.back-to-top {
  position: fixed;
  bottom: 32px;
  right: 32px;
  width: 48px;
  height: 48px;
  background: var(--color-primary);
  color: white;
  border: none;
  border-radius: 50%;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: all var(--transition-normal);
  z-index: 999;
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  justify-content: center;
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top:hover {
  background: var(--color-primary-hover);
  transform: translateY(-4px);
}

/* 骨架屏加载 */
.skeleton {
  background: linear-gradient(90deg, #f0f0f0 25%, #e8e8e8 50%, #f0f0f0 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: 8px;
}

.skeleton-text {
  height: 16px;
  margin-bottom: 8px;
}

.skeleton-title {
  height: 24px;
  width: 60%;
  margin-bottom: 16px;
}

.skeleton-image {
  height: 200px;
  margin-bottom: 16px;
}

/* 无障碍焦点样式 */
a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* 减少动画偏好 */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* 暗色模式支持（预留） */
@media (prefers-color-scheme: dark) {
  /* 可以在这里添加暗色模式样式 */
}

/* 高对比度模式 */
@media (prefers-contrast: high) {
  .btn-primary {
    border: 2px solid white;
  }
  
  .card {
    border-width: 2px;
  }
}