/* ============================================
   ITF Technology — 产品详情页通用样式系统
   ============================================ */

/* ============================================
   1. PRODUCT HERO (产品首屏 Banner)
   ============================================ */
.product-hero {
  padding: var(--space-16) 0 var(--space-20);
  background: linear-gradient(180deg, var(--color-neutral-050) 0%, #fff 100%);
  position: relative;
  overflow: hidden;
}

.product-hero::after {
  content: "";
  position: absolute;
  top: -20%;
  right: -10%;
  width: 50%;
  height: 80%;
  background: radial-gradient(circle, rgba(59,130,246,0.08), transparent 70%);
  pointer-events: none;
}

.product-hero-grid {
  display: grid;
  grid-template-columns: 1.02fr 0.98fr;
  gap: var(--space-16);
  align-items: center;
  margin: 0 -135px;
}

.product-hero-copy .section-kicker {
  margin-bottom: var(--space-4);
}

.product-hero-copy h1 {
  font-size: clamp(2.5rem, 5vw, 3.5rem);
  margin-bottom: var(--space-3);
  line-height: var(--leading-tight);
}

.hero-highlight {
  display: block;
  background: linear-gradient(135deg, var(--color-primary-500), var(--color-primary-700));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: var(--text-xl);
  color: var(--color-neutral-500);
  margin-bottom: var(--space-5);
  font-weight: 500;
}

.product-hero-copy .hero-desc {
  max-width: 560px;
  font-size: var(--text-base);
  line-height: var(--leading-relaxed);
  color: var(--color-neutral-500);
  margin-bottom: var(--space-6);
}

.hero-stats {
  display: flex;
  gap: var(--space-12);
  margin-bottom: var(--space-8);
  padding: var(--space-4) var(--space-8);
  background: #f8fafc;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(203, 213, 225, 0.8);
  border-radius: var(--radius-xl);
  box-shadow: 
    0 4px 20px -2px rgba(15, 23, 42, 0.04),
    0 2px 6px -1px rgba(15, 23, 42, 0.02);
  max-width: 420px;
  margin-left: 0;
  justify-content: space-around;
}

.hero-stat {
  text-align: center;
}

.hero-stat strong {
  display: block;
  color: var(--color-primary-600);
  font-size: var(--text-3xl);
  font-weight: 800;
  line-height: 1;
  margin-bottom: var(--space-1);
}

.hero-stat span {
  color: var(--color-neutral-500);
  font-size: var(--text-xs);
  font-weight: 500;
}

.product-hero-copy .hero-actions {
  display: flex;
  gap: var(--space-3);
}

/* Hero Visual — Dashboard mockup / Icon decoration */
.product-hero-visual {
  display: flex;
  justify-content: center;
  position: relative;
}

.hero-dashboard {
  width: 100%;
  max-width: 440px;
  background: var(--glass-bg, rgba(255, 255, 255, 0.7));
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-radius: var(--radius-2xl);
  border: 1px solid var(--glass-border, rgba(255, 255, 255, 0.2));
  box-shadow: var(--shadow-xl);
  overflow: hidden;
  transition: transform var(--transition-slow);
}

.hero-dashboard:hover {
  transform: translateY(-4px);
}

.hero-db-header {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-4) var(--space-5);
  background: rgba(243, 244, 246, 0.6);
  border-bottom: 1px solid rgba(229, 231, 235, 0.5);
  font-size: var(--text-xs);
  color: var(--color-neutral-500);
  font-weight: 500;
}

.db-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-neutral-300);
}

.db-dot:first-child { background: #ef4444; }
.db-dot:nth-child(2) { background: #f59e0b; }
.db-dot:nth-child(3) { background: #22c55e; }

.hero-db-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-3);
  padding: var(--space-5);
}

.hero-db-item {
  padding: var(--space-3);
  text-align: center;
  border-radius: var(--radius-md);
  background: var(--color-primary-050);
  border: 1px solid var(--color-primary-100);
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-primary-600);
  transition: background var(--transition-fast), transform var(--transition-fast);
}

.hero-db-item:hover {
  background: var(--color-primary-100);
  transform: translateY(-1px);
}

.hero-db-status {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-5);
  border-top: 1px solid rgba(229, 231, 235, 0.5);
  font-size: var(--text-xs);
  color: var(--color-success);
  font-weight: 500;
}

.status-indicator {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-success);
  animation: pulse-dot 2s ease-in-out infinite;
}

/* 3D Floating Icon wrapper for subpages */
.hero-detail-icon {
  width: 100%;
  max-width: 320px;
  display: flex;
  justify-content: center;
  align-items: center;
  animation: float 4s ease-in-out infinite;
  filter: drop-shadow(0 20px 30px rgba(15,47,102,0.15));
}

.hero-detail-icon img {
  width: 100%;
  height: auto;
  object-fit: contain;
}


/* ============================================
   2. SYSTEM OVERVIEW (系统概述/服务详情)
   ============================================ */
.overview-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-5);
  margin-bottom: var(--space-10);
}

.overview-card {
  padding: var(--space-6);
  background: #fff;
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-neutral-200);
  box-shadow: var(--shadow-sm);
  transition: border-color var(--transition-base), box-shadow var(--transition-base);
}

.overview-card:hover {
  border-color: var(--color-primary-200);
  box-shadow: var(--shadow-md);
}

.overview-card h3 {
  font-size: var(--text-lg);
  margin-bottom: var(--space-3);
  color: var(--color-primary-600);
}

.overview-card p {
  font-size: var(--text-sm);
  line-height: var(--leading-relaxed);
}

/* Core Values (核心价值) */
.value-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-5);
}

.value-card {
  padding: var(--space-6);
  background: linear-gradient(160deg, var(--color-primary-050), #fff);
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-primary-100);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.value-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.value-icon {
  width: 48px;
  height: 48px;
  display: grid;
  place-items: center;
  border-radius: var(--radius-lg);
  background: var(--color-primary-500);
  color: #fff;
  margin-bottom: var(--space-4);
}

.value-icon svg {
  width: 24px;
  height: 24px;
  stroke: currentColor;
  stroke-width: 2;
  fill: none;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.value-card h3 {
  font-size: var(--text-lg);
  margin-bottom: var(--space-2);
}

.value-card p {
  font-size: var(--text-sm);
  line-height: var(--leading-relaxed);
  margin: 0;
}


/* ============================================
   3. MODULE TABS (页签式组件列表)
   ============================================ */
.module-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-bottom: var(--space-8);
  justify-content: center;
}

.module-tab {
  padding: var(--space-2) var(--space-5);
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-neutral-500);
  background: #fff;
  border: 1px solid var(--color-neutral-200);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.module-tab:hover {
  color: var(--color-primary-500);
  border-color: var(--color-primary-300);
}

.module-tab.active {
  color: #fff;
  background: var(--color-primary-500);
  border-color: var(--color-primary-500);
}

.module-panels {
  background: #fff;
  border-radius: var(--radius-2xl);
  border: 1px solid var(--color-neutral-200);
  box-shadow: var(--shadow-sm);
  padding: var(--space-8);
  min-height: 320px;
}

.module-panel {
  display: none;
}

.module-panel.active {
  display: block;
  animation: fadeInUp 0.35s ease;
}

.module-panel h3 {
  font-size: var(--text-2xl);
  margin-bottom: var(--space-2);
}

.module-desc {
  color: var(--color-neutral-500);
  font-size: var(--text-base);
  margin-bottom: var(--space-6);
  padding-bottom: var(--space-6);
  border-bottom: 1px solid var(--color-neutral-100);
}

.module-features {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-4);
}

.module-feature {
  padding: var(--space-4);
  border-radius: var(--radius-lg);
  background: var(--color-neutral-050);
}

.module-feature strong {
  display: block;
  font-size: var(--text-sm);
  margin-bottom: var(--space-2);
  color: var(--color-neutral-800);
}

.module-feature span {
  font-size: var(--text-sm);
  color: var(--color-neutral-500);
  line-height: var(--leading-relaxed);
}


/* ============================================
   4. FEATURES GRID (核心差异化优势)
   ============================================ */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-5);
}

.feature-card {
  padding: var(--space-6);
  background: #fff;
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-neutral-200);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.feature-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
}

.feature-icon {
  width: 48px;
  height: 48px;
  display: grid;
  place-items: center;
  border-radius: var(--radius-lg);
  background: var(--color-primary-050);
  color: var(--color-primary-500);
  margin-bottom: var(--space-4);
}

.feature-icon svg {
  width: 26px;
  height: 26px;
  stroke: currentColor;
  stroke-width: 1.8;
  fill: none;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.feature-card h3 {
  font-size: var(--text-lg);
  margin-bottom: var(--space-2);
}

.feature-card p {
  font-size: var(--text-sm);
  line-height: var(--leading-relaxed);
  margin: 0;
}


/* ============================================
   5. DEPLOYMENT OPTIONS (部署方案)
   ============================================ */
.deploy-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-6);
}

.deploy-card {
  position: relative;
  padding: var(--space-8);
  background: #fff;
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-neutral-200);
  box-shadow: var(--shadow-md);
}

.deploy-card.deploy-recommended {
  border-color: var(--color-primary-300);
  box-shadow: 0 0 0 1px var(--color-primary-200), var(--shadow-lg);
}

.deploy-badge {
  position: absolute;
  top: var(--space-4);
  right: var(--space-4);
  padding: var(--space-1) var(--space-3);
  font-size: var(--text-xs);
  font-weight: 700;
  color: #fff;
  background: var(--color-primary-500);
  border-radius: var(--radius-full);
}

.deploy-icon {
  width: 56px;
  height: 56px;
  display: grid;
  place-items: center;
  border-radius: var(--radius-lg);
  background: var(--color-primary-050);
  color: var(--color-primary-500);
  margin-bottom: var(--space-5);
}

.deploy-icon svg {
  width: 28px;
  height: 28px;
  stroke: currentColor;
  stroke-width: 1.8;
  fill: none;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.deploy-card h3 {
  font-size: var(--text-xl);
  margin-bottom: var(--space-4);
}

.deploy-card ul {
  display: grid;
  gap: var(--space-3);
}

.deploy-card li {
  position: relative;
  padding-left: var(--space-6);
  font-size: var(--text-sm);
  color: var(--color-neutral-600);
  line-height: var(--leading-relaxed);
}

.deploy-card li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.5em;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--color-primary-050);
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 16 16' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M4 8l3 3 5-6' stroke='%232563eb' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-size: 12px;
  background-position: center;
  background-repeat: no-repeat;
}


/* ============================================
   6. USER TABLE (用户与权限矩阵)
   ============================================ */
.users-table-wrap {
  overflow-x: auto;
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-neutral-200);
  box-shadow: var(--shadow-sm);
}

.users-table {
  width: 100%;
  border-collapse: collapse;
  background: #fff;
}

.users-table th {
  text-align: left;
  padding: var(--space-4) var(--space-5);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--color-neutral-500);
  background: var(--color-neutral-050);
  border-bottom: 1px solid var(--color-neutral-200);
}

.users-table td {
  padding: var(--space-4) var(--space-5);
  font-size: var(--text-sm);
  color: var(--color-neutral-600);
  line-height: var(--leading-relaxed);
  border-bottom: 1px solid var(--color-neutral-100);
}

.users-table tr:last-child td {
  border-bottom: none;
}

.users-table td:first-child {
  white-space: nowrap;
}


/* ============================================
   7. RESPONSIVE (响应式媒介查询)
   ============================================ */
@media (max-width: 1024px) {
  .product-hero-grid {
    grid-template-columns: 1fr;
    gap: var(--space-10);
  }

  .product-hero-visual {
    order: -1;
  }

  .hero-dashboard,
  .hero-detail-icon,
  .screenshot-carousel-3d {
    max-width: 100%;
  }

  .overview-grid,
  .value-cards,
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .module-features {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .overview-grid,
  .value-cards,
  .features-grid {
    grid-template-columns: 1fr;
  }

  .hero-stats {
    flex-direction: column;
    gap: var(--space-4);
  }

  .module-tabs {
    gap: var(--space-1);
  }

  .module-tab {
    padding: var(--space-2) var(--space-3);
    font-size: var(--text-xs);
  }

  .module-panels {
    padding: var(--space-5);
  }

  .product-hero-copy .hero-actions {
    flex-direction: column;
  }

  .product-hero-copy .hero-actions .btn {
    width: 100%;
  }

  .section-head h2 {
    font-size: var(--text-2xl);
  }
}

/* Hero Visual — Dashboard mockup / Icon decoration */
.product-hero-visual {
  display: flex;
  justify-content: center;
  position: relative;
  width: 100%;
}

/* 3D 轮播背后的科技蓝发光环绕 */
.hero-visual-glow {
  position: absolute;
  top: 40%;
  left: 45%;
  transform: translate(-50%, -50%);
  width: 600px;
  height: 500px;
  background: radial-gradient(circle, rgba(37, 99, 235, 0.22) 0%, rgba(37, 99, 235, 0) 70%);
  filter: blur(40px);
  pointer-events: none;
  z-index: 0;
}

/* ============================================
   8. 3D 层叠产品截图轮播
   ============================================ */
.screenshot-carousel-3d-wrapper {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-8);
  width: 100%;
  max-width: 760px;
  margin: 0 auto;
  padding-top: 50px;
  position: relative;
  z-index: 1;
}

.screenshot-carousel-3d {
  position: relative;
  width: 100%;
  aspect-ratio: 1.5;
  perspective: 1500px;
}

.screenshot-carousel-3d .carousel-img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  aspect-ratio: 1.6;
  object-fit: cover;
  object-position: top;
  border-radius: var(--radius-xl);
  border: 1.5px solid rgba(17, 24, 39, 0.18);
  box-shadow: 
    0 30px 60px -15px rgba(15, 23, 42, 0.25), 
    0 10px 25px -10px rgba(15, 23, 42, 0.15);
  transition: transform 0.7s cubic-bezier(0.25, 1, 0.2, 1), opacity 0.7s, z-index 0.7s;
  transform-origin: center right;
  cursor: pointer;
  opacity: 0;
}

/* 轮播层叠状态 (适配大比例的 3D 偏转位移) */
.screenshot-carousel-3d .carousel-img.active {
  transform: translate3d(-50px, 15px, 20px) rotate(-4deg);
  z-index: 3;
  opacity: 1;
}

.screenshot-carousel-3d .carousel-img.next {
  transform: translate3d(0px, -5px, -20px) rotate(0deg);
  z-index: 2;
  opacity: 0.95;
}

.screenshot-carousel-3d .carousel-img.prev {
  transform: translate3d(50px, -20px, -60px) rotate(4deg);
  z-index: 1;
  opacity: 0.85;
}

/* Hover 扇形展开效果 (更明显的排开) */
.screenshot-carousel-3d:hover .carousel-img.active {
  transform: translate3d(-60px, 20px, 30px) rotate(-5deg);
}

.screenshot-carousel-3d:hover .carousel-img.next {
  transform: translate3d(0, 0, 0) rotate(0deg);
  z-index: 4;
  opacity: 1;
}

.screenshot-carousel-3d:hover .carousel-img.prev {
  transform: translate3d(60px, -20px, -30px) rotate(5deg);
  opacity: 1;
}

/* 轮播控制圆点 */
.carousel-dots {
  display: flex;
  gap: var(--space-3);
  justify-content: center;
  align-items: center;
  padding: var(--space-2) var(--space-4);
  background: var(--glass-bg);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid var(--glass-border);
  border-radius: 30px;
  box-shadow: var(--shadow-sm);
  z-index: 5;
  margin-top: var(--space-4);
}

.carousel-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--color-neutral-300);
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.carousel-dot:hover {
  background: var(--color-neutral-400);
  transform: scale(1.2);
}

.carousel-dot.active {
  width: 20px;
  border-radius: 4px;
  background: var(--color-primary-600);
  box-shadow: 0 0 10px rgba(37, 99, 235, 0.4);
}

/* 模块大截图窗口包装 */
.module-screenshot-wrap {
  width: 100%;
  border-radius: var(--radius-xl);
  border: 1px solid rgba(229, 231, 235, 0.8);
  background: #fff;
  padding: var(--space-2);
  box-shadow: 
    0 10px 25px -5px rgba(15, 23, 42, 0.05),
    0 8px 10px -6px rgba(0, 0, 0, 0.03);
  position: relative;
  overflow: hidden;
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.module-screenshot-wrap:hover {
  transform: translateY(-2px);
  box-shadow: 
    0 20px 35px -5px rgba(15, 23, 42, 0.08),
    0 12px 15px -8px rgba(0, 0, 0, 0.04);
}

.module-screenshot-wrap img {
  width: 100%;
  height: auto;
  border-radius: var(--radius-lg);
  display: block;
  object-fit: cover;
  border: 1px solid rgba(243, 244, 246, 0.6);
}


/* ============================================
   PRODUCT CTA BANNER CARD
   ============================================ */
.contact-band {
  padding: var(--space-16) 0;
  background: linear-gradient(135deg, var(--color-primary-900, #0f172a), var(--color-primary-800, #1e293b));
  position: relative;
  overflow: hidden;
}

.contact-band::before {
  content: "";
  position: absolute;
  top: -50%;
  right: -20%;
  width: 60%;
  height: 200%;
  background: radial-gradient(circle, rgba(37, 99, 235, 0.15), transparent 60%);
  pointer-events: none;
}

.product-cta-card {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-8);
  padding: var(--space-10) var(--space-12);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-2xl);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: 0 20px 40px -15px rgba(0, 0, 0, 0.4);
}

.product-cta-copy {
  max-width: 680px;
}

.product-cta-copy .section-kicker {
  margin-bottom: var(--space-3);
  color: var(--color-primary-300, #93c5fd);
  background: rgba(59, 130, 246, 0.2);
  border-color: rgba(59, 130, 246, 0.3);
}

.product-cta-copy h2 {
  font-size: clamp(1.75rem, 3vw, 2.25rem);
  font-weight: 800;
  color: #ffffff;
  margin-bottom: var(--space-3);
  line-height: var(--leading-tight);
}

.product-cta-copy p {
  font-size: var(--text-base);
  color: #cbd5e1;
  line-height: var(--leading-relaxed);
  margin: 0;
}

.product-cta-action {
  flex-shrink: 0;
}

.btn-cta-glow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-4) var(--space-8);
  font-size: var(--text-base);
  font-weight: 700;
  color: var(--color-primary-700, #1d4ed8);
  background: #ffffff;
  border-radius: var(--radius-full);
  text-decoration: none;
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), background var(--transition-fast);
}

.btn-cta-glow:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 30px rgba(255, 255, 255, 0.25);
  background: #f8fafc;
  color: var(--color-primary-600, #2563eb);
}

@media (max-width: 868px) {
  .product-cta-card {
    flex-direction: column;
    text-align: center;
    padding: var(--space-8);
  }
  .product-cta-copy {
    max-width: 100%;
  }
  .product-cta-copy .section-kicker {
    margin: 0 auto var(--space-3) auto;
  }
}