/* ========================================
   「定制开发」服务详情页专属样式
   布局/动效复刻自参考页，配色重映射为网站青蓝商务科技风
   仅作用于 service-customization.html，不污染全局 style.css
   类名加 cus- 前缀避免与全局冲突
   ======================================== */

:root {
  /* 配色：参考页蓝紫多彩 → 网站青蓝商务（单一色系，克制稳重） */
  --cus-primary: #15B0ED;          /* 主色青蓝（网站 logo 色） */
  --cus-primary-light: #3ec3f0;    /* 主色提亮 */
  --cus-primary-dark: #0E8FC0;     /* 主色加深 */
  --cus-accent: #0891b2;           /* 辅助青（原 accent + 紫色统一并入） */

  --cus-text: #0F2F3F;             /* 深青蓝标题/正文重 */
  --cus-text-light: #5F5D5D;       /* 正文灰（网站主灰） */
  --cus-text-muted: #9ca3af;       /* 浅灰辅助 */

  --cus-bg: #ffffff;
  --cus-bg-soft: #f7fbfd;          /* 浅青底 */
  --cus-card: #ffffff;

  --cus-border: #e2e8f0;

  /* 渐变：统一青蓝双向，商务稳重（原 蓝→紫 多彩 → 单色系） */
  --cus-gradient: linear-gradient(135deg, #15B0ED 0%, #0E8FC0 100%);
  --cus-gradient-soft: linear-gradient(135deg, #0891b2 0%, #0E8FC0 100%);

  /* 阴影：青蓝色调 */
  --cus-shadow-sm: 0 1px 3px rgba(15, 47, 63, .06);
  --cus-shadow: 0 4px 24px rgba(21, 176, 237, .08);
  --cus-shadow-lg: 0 12px 48px rgba(21, 176, 237, .12);

  --cus-radius: 16px;
  --cus-max-width: 1200px;
}

/* ==================== Hero ==================== */
.cus-hero {
  position: relative;
  min-height: calc(100vh - 76px);
  margin-top: 76px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 50px 30px 60px;
  overflow: hidden;
  background: #fff;
}
/* Hero 白底科技网格 + scan 复用全局 .hero-grid / .hero-scan（已在 style.css 定义） */
.cus-hero .hero-grid,
.cus-hero .hero-scan { z-index: 0; }
.cus-hero .banner-fx { z-index: 0; }

.cus-hero-content {
  position: relative;
  z-index: 2;
  max-width: var(--cus-max-width);
  margin: 0 auto;
  text-align: center;
}

.cus-hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background: linear-gradient(135deg, rgba(21, 176, 237, .08), rgba(8, 145, 178, .08));
  border: 1px solid rgba(21, 176, 237, .2);
  border-radius: 100px;
  font-size: 13px;
  font-weight: 600;
  color: var(--cus-primary-dark);
  margin-bottom: 24px;
  animation: cusFadeUp .8s ease forwards;
}
.cus-hero-badge .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--cus-accent);
  animation: cusPulse 2s ease infinite;
}
@keyframes cusPulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(8, 145, 178, .4); }
  50% { box-shadow: 0 0 0 8px rgba(8, 145, 178, 0); }
}

.cus-hero h1 {
  font-size: 64px;
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -1px;
  color: var(--cus-text);
  margin-bottom: 24px;
  animation: cusFadeUp .8s ease .1s both;
}
.cus-hero h1 .cus-gradient-text {
  background: linear-gradient(135deg, #15B0ED, #0891b2);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.cus-hero-desc {
  max-width: 820px;
  margin: 0 auto 22px;
  font-size: clamp(15px, 2vw, 18px);
  color: var(--cus-text-light);
  line-height: 1.65;
  animation: cusFadeUp .8s ease .2s both;
}

.cus-hero-products {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
  margin-bottom: 26px;
  animation: cusFadeUp .8s ease .3s both;
}
.cus-product-tag {
  padding: 8px 20px;
  background: #fff;
  border: 1px solid var(--cus-border);
  border-radius: 100px;
  font-size: 14px;
  font-weight: 600;
  color: var(--cus-text);
  display: flex;
  align-items: center;
  gap: 6px;
  transition: all .3s;
  box-shadow: var(--cus-shadow-sm);
}
.cus-product-tag:hover {
  border-color: var(--cus-primary);
  color: var(--cus-primary-dark);
  transform: translateY(-3px);
  box-shadow: 0 8px 20px rgba(21, 176, 237, .12);
}
.cus-product-tag .tag-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--cus-primary), var(--cus-accent));
}

.cus-hero-cta-group {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  animation: cusFadeUp .8s ease .4s both;
}
.cus-hero-cta {
  padding: 14px 32px;
  border-radius: 12px;
  font-size: 15px;
  font-weight: 600;
  transition: all .3s;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.cus-hero-cta.primary {
  background: var(--cus-gradient);
  color: #fff;
  box-shadow: 0 8px 24px rgba(21, 176, 237, .3);
}
.cus-hero-cta.primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 32px rgba(21, 176, 237, .4);
}
.cus-hero-cta.secondary {
  background: #fff;
  color: var(--cus-primary-dark);
  border: 1px solid var(--cus-border);
  box-shadow: var(--cus-shadow-sm);
}
.cus-hero-cta.secondary:hover {
  border-color: var(--cus-primary);
  transform: translateY(-3px);
}

/* Hero 数据条 */
.cus-hero-stats {
  display: flex;
  justify-content: center;
  gap: 48px;
  margin-top: 24px;
  flex-wrap: wrap;
  animation: cusFadeUp .8s ease .5s both;
}
.cus-stat-item { text-align: center; }
.cus-stat-num {
  font-size: 36px;
  font-weight: 800;
  background: linear-gradient(135deg, #15B0ED, #0891b2);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.cus-stat-label {
  font-size: 13px;
  color: var(--cus-text-muted);
  margin-top: 4px;
}

@keyframes cusFadeUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ==================== 通用 Section ==================== */
.cus-section {
  padding: 100px 32px;
  position: relative;
}
.cus-section-inner { max-width: var(--cus-max-width); margin: 0 auto; }
.cus-section-header {
  text-align: center;
  margin-bottom: 64px;
}
.cus-section-tag {
  display: inline-block;
  padding: 4px 14px;
  background: rgba(21, 176, 237, .08);
  color: var(--cus-primary-dark);
  font-size: 13px;
  font-weight: 600;
  border-radius: 100px;
  margin-bottom: 16px;
  letter-spacing: .5px;
}
.cus-section-title {
  font-size: clamp(24px, 4vw, 36px);
  font-weight: 800;
  color: var(--cus-text);
  margin-bottom: 16px;
  line-height: 1.4;
}
.cus-section-subtitle {
  font-size: 16px;
  color: var(--cus-text-light);
  max-width: 700px;
  margin: 0 auto;
  line-height: 1.8;
}

/* ==================== Section1: 核心技术底座 ==================== */
.cus-tech-intro {
  max-width: 880px;
  margin: 0 auto 48px;
  text-align: center;
  padding: 32px;
  background: linear-gradient(135deg, rgba(21, 176, 237, .03), rgba(8, 145, 178, .03));
  border: 1px solid rgba(21, 176, 237, .1);
  border-radius: var(--cus-radius);
  font-size: 15px;
  color: var(--cus-text-light);
  line-height: 1.9;
}
.cus-tech-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 24px;
}
.cus-tech-card {
  background: var(--cus-card);
  border: 1px solid var(--cus-border);
  border-radius: var(--cus-radius);
  padding: 32px 28px;
  transition: all .4s cubic-bezier(.4, 0, .2, 1);
  position: relative;
  overflow: hidden;
}
.cus-tech-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--cus-gradient);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .4s ease;
}
.cus-tech-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--cus-shadow-lg);
  border-color: rgba(21, 176, 237, .25);
}
.cus-tech-card:hover::before { transform: scaleX(1); }
.cus-tech-icon {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  margin-bottom: 20px;
  background: linear-gradient(135deg, rgba(21, 176, 237, .08), rgba(8, 145, 178, .08));
  transition: all .3s;
}
.cus-tech-card:hover .cus-tech-icon {
  background: var(--cus-gradient);
  transform: scale(1.1) rotate(-5deg);
}
.cus-tech-card:hover .cus-tech-icon svg { stroke: #fff; }
.cus-tech-card h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--cus-text);
}
.cus-tech-card p {
  font-size: 14px;
  color: var(--cus-text-light);
  line-height: 1.7;
}

/* ==================== Section2: 全场景开发业务 ==================== */
.cus-biz-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
}
.cus-biz-card {
  background: var(--cus-card);
  border: 1px solid var(--cus-border);
  border-radius: var(--cus-radius);
  padding: 36px 32px;
  transition: all .4s;
  position: relative;
  overflow: hidden;
}
.cus-biz-card::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 0;
  background: linear-gradient(180deg, transparent, rgba(21, 176, 237, .03));
  transition: height .4s;
}
.cus-biz-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--cus-shadow-lg);
  border-color: rgba(21, 176, 237, .2);
}
.cus-biz-card:hover::after { height: 100%; }
.cus-biz-num {
  font-size: 48px;
  font-weight: 900;
  background: linear-gradient(135deg, rgba(21, 176, 237, .14), rgba(8, 145, 178, .14));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  line-height: 1;
  margin-bottom: 16px;
  font-family: 'Georgia', serif;
}
.cus-biz-card:hover .cus-biz-num {
  background: var(--cus-gradient);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.cus-biz-card h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--cus-text);
}
.cus-biz-card p {
  font-size: 14px;
  color: var(--cus-text-light);
  line-height: 1.8;
}

/* ==================== Section3: 标准化全流程 ==================== */
.cus-process-section { background: var(--cus-bg-soft); }
.cus-process-timeline {
  position: relative;
  max-width: 900px;
  margin: 0 auto;
}
.cus-process-timeline::before {
  content: '';
  position: absolute;
  left: 40px;
  top: 0; bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, #15B0ED, #0891b2, transparent);
}
.cus-process-step {
  position: relative;
  padding-left: 100px;
  margin-bottom: 48px;
  opacity: 0;
  transform: translateX(-30px);
  transition: all .6s ease;
}
.cus-process-step.cus-visible {
  opacity: 1;
  transform: translateX(0);
}
.cus-process-step:last-child { margin-bottom: 0; }
.cus-process-dot {
  position: absolute;
  left: 30px;
  top: 0;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: #fff;
  border: 3px solid var(--cus-primary);
  z-index: 2;
  transition: all .3s;
}
.cus-process-step.cus-visible .cus-process-dot {
  box-shadow: 0 0 0 6px rgba(21, 176, 237, .12);
}
.cus-process-step:hover .cus-process-dot {
  background: var(--cus-primary);
  box-shadow: 0 0 0 8px rgba(21, 176, 237, .18);
}
.cus-process-step-num {
  font-size: 13px;
  font-weight: 700;
  color: var(--cus-primary-dark);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 6px;
}
.cus-process-step h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--cus-text);
}
.cus-process-step p {
  font-size: 14px;
  color: var(--cus-text-light);
  line-height: 1.8;
  max-width: 640px;
}

/* ==================== Section4: 质量安全管控 ==================== */
.cus-security-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
}
.cus-security-card {
  background: var(--cus-card);
  border: 1px solid var(--cus-border);
  border-radius: var(--cus-radius);
  padding: 28px 24px;
  text-align: center;
  transition: all .4s;
  position: relative;
  overflow: hidden;
}
.cus-security-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  width: 0;
  height: 3px;
  background: var(--cus-gradient);
  transform: translateX(-50%);
  transition: width .4s;
}
.cus-security-card:hover {
  transform: translateY(-6px) scale(1.02);
  box-shadow: var(--cus-shadow-lg);
  border-color: rgba(21, 176, 237, .2);
}
.cus-security-card:hover::before { width: 60%; }
.cus-security-shield {
  width: 64px;
  height: 64px;
  margin: 0 auto 20px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, rgba(21, 176, 237, .06), rgba(8, 145, 178, .06));
  transition: all .3s;
}
.cus-security-card:hover .cus-security-shield {
  background: var(--cus-gradient);
  transform: scale(1.1);
}
.cus-security-card:hover .cus-security-shield svg { stroke: #fff; }
.cus-security-card h3 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--cus-text);
}
.cus-security-card p {
  font-size: 13px;
  color: var(--cus-text-light);
  line-height: 1.7;
}

/* ==================== Section5: 核心优势 ==================== */
.cus-advantage-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}
.cus-advantage-card {
  background: var(--cus-card);
  border: 1px solid var(--cus-border);
  border-radius: var(--cus-radius);
  padding: 32px;
  transition: all .4s;
  position: relative;
  overflow: hidden;
}
.cus-advantage-card::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 120px;
  height: 120px;
  background: radial-gradient(circle, rgba(21, 176, 237, .08), transparent 70%);
  border-radius: 50%;
  transform: translate(40px, -40px);
  transition: all .4s;
}
.cus-advantage-card:hover::before {
  background: radial-gradient(circle, rgba(21, 176, 237, .16), transparent 70%);
  transform: translate(20px, -20px) scale(1.5);
}
.cus-advantage-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--cus-shadow-lg);
  border-color: rgba(21, 176, 237, .2);
}
.cus-adv-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  background: var(--cus-gradient);
  box-shadow: 0 8px 16px rgba(21, 176, 237, .25);
  position: relative;
  z-index: 1;
}
.cus-advantage-card h3 {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--cus-text);
  position: relative;
  z-index: 1;
}
.cus-advantage-card p {
  font-size: 14px;
  color: var(--cus-text-light);
  line-height: 1.7;
  position: relative;
  z-index: 1;
}

/* ==================== Section6: 服务适配场景 ==================== */
.cus-scenario-section { background: var(--cus-bg-soft); }
.cus-scenario-banner {
  max-width: 880px;
  margin: 0 auto 40px;
  text-align: center;
  padding: 36px;
  background: var(--cus-gradient);
  border-radius: 20px;
  color: #fff;
  position: relative;
  overflow: hidden;
}
.cus-scenario-banner::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 300px;
  height: 300px;
  border-radius: 50%;
  background: rgba(255, 255, 255, .06);
}
.cus-scenario-banner::after {
  content: '';
  position: absolute;
  bottom: -60%;
  left: -10%;
  width: 250px;
  height: 250px;
  border-radius: 50%;
  background: rgba(8, 145, 178, .25);
}
.cus-scenario-banner p {
  font-size: 16px;
  line-height: 1.9;
  position: relative;
  z-index: 1;
}
.cus-scenario-products {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
  margin-bottom: 40px;
}
.cus-scenario-product {
  padding: 10px 24px;
  background: #fff;
  border: 1px solid var(--cus-border);
  border-radius: 12px;
  font-weight: 700;
  font-size: 15px;
  color: var(--cus-text);
  transition: all .3s;
  box-shadow: var(--cus-shadow-sm);
}
.cus-scenario-product:hover {
  background: var(--cus-primary);
  color: #fff;
  border-color: var(--cus-primary);
  transform: translateY(-3px) scale(1.05);
  box-shadow: 0 8px 20px rgba(21, 176, 237, .25);
}
.cus-scenario-pain-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 20px;
}
.cus-pain-card {
  background: var(--cus-card);
  border: 1px solid var(--cus-border);
  border-radius: var(--cus-radius);
  padding: 28px 24px;
  text-align: center;
  transition: all .3s;
}
.cus-pain-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--cus-shadow);
  border-color: rgba(239, 68, 68, .2);
}
.cus-pain-icon {
  width: 52px;
  height: 52px;
  margin: 0 auto 16px;
  border-radius: 14px;
  background: rgba(239, 68, 68, .06);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all .3s;
}
.cus-pain-card:hover .cus-pain-icon {
  background: linear-gradient(135deg, #ef4444, #f97316);
  transform: scale(1.1);
}
.cus-pain-card:hover .cus-pain-icon svg { stroke: #fff; }
.cus-pain-card h3 {
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--cus-text);
}
.cus-pain-card p {
  font-size: 13px;
  color: var(--cus-text-muted);
  line-height: 1.6;
}

/* ==================== CTA 区域 ==================== */
.cus-cta-section {
  padding: 80px 32px;
  background: #fff;
}
.cus-cta-box {
  max-width: 900px;
  margin: 0 auto;
  background: var(--cus-gradient);
  border-radius: 24px;
  padding: 56px 48px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.cus-cta-box::before {
  content: '';
  position: absolute;
  top: -100px;
  right: -100px;
  width: 400px;
  height: 400px;
  border-radius: 50%;
  background: rgba(8, 145, 178, .2);
}
.cus-cta-box::after {
  content: '';
  position: absolute;
  bottom: -150px;
  left: -100px;
  width: 350px;
  height: 350px;
  border-radius: 50%;
  background: rgba(62, 195, 240, .12);
}
.cus-cta-box h2 {
  font-size: 28px;
  font-weight: 800;
  color: #fff;
  margin-bottom: 16px;
  position: relative;
  z-index: 1;
}
.cus-cta-box p {
  font-size: 16px;
  color: rgba(255, 255, 255, .85);
  margin-bottom: 32px;
  position: relative;
  z-index: 1;
}
.cus-cta-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 36px;
  background: #fff;
  color: var(--cus-primary-dark);
  border-radius: 12px;
  font-size: 15px;
  font-weight: 700;
  transition: all .3s;
  cursor: pointer;
  position: relative;
  z-index: 1;
  box-shadow: 0 8px 24px rgba(0, 0, 0, .15);
}
.cus-cta-btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 32px rgba(0, 0, 0, .2);
}

/* ==================== 滚动揭示动画 ==================== */
.cus-reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity .7s ease, transform .7s ease;
}
.cus-reveal.cus-visible {
  opacity: 1;
  transform: translateY(0);
}
.cus-reveal-delay-1 { transition-delay: .1s; }
.cus-reveal-delay-2 { transition-delay: .2s; }
.cus-reveal-delay-3 { transition-delay: .3s; }
.cus-reveal-delay-4 { transition-delay: .4s; }

/* ==================== 响应式 ==================== */
@media (max-width: 768px) {
  .cus-hero { padding: 110px 20px 70px; }
  .cus-section { padding: 64px 20px; }
  .cus-hero-stats { gap: 32px; }
  .cus-stat-num { font-size: 28px; }
  .cus-process-step { padding-left: 80px; }
  .cus-process-timeline::before { left: 28px; }
  .cus-process-dot { left: 18px; }
  .cus-cta-box { padding: 40px 24px; }
  .cus-cta-box h2 { font-size: 22px; }
}