/* ===== 全局基础样式 ===== */
@import url('https://fonts.loli.net/css2?family=Inter:wght@300;400;500;600;700;800;900&display=swap');

:root {
  --primary-400: #60a5fa;
  --primary-500: #3b82f6;
  --primary-600: #2563eb;
  --primary-700: #1d4ed8;
  --light-50: #f8fafc;
  --light-100: #f1f5f9;
  --light-200: #e2e8f0;
  --light-300: #cbd5e1;
  --text-primary: #1e293b;
  --text-secondary: #475569;
  --text-muted: #64748b;
  --text-light: #94a3b8;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  color: var(--text-primary);
  background: #ffffff;
  overflow-x: hidden;
}

/* ===== 全局噪点纹理覆盖层 ===== */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  z-index: 9990;
  pointer-events: none;
  opacity: 0.035;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  background-repeat: repeat;
  background-size: 256px 256px;
}

/* ===== Section 差异化背景 ===== */
.section-white { background: #ffffff; position: relative; }
.section-alt {
  background: linear-gradient(180deg, #f8fafc 0%, #f1f5f9 100%);
  position: relative;
}
.section-alt::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--light-200), transparent);
}

/* ===== 浮动装饰光球 ===== */
.bg-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  pointer-events: none;
  z-index: 0;
  opacity: 0.4;
}
.bg-orb-float {
  animation: orb-float 8s ease-in-out infinite;
}
.bg-orb-float-slow {
  animation: orb-float 12s ease-in-out infinite;
}
.bg-orb-float-reverse {
  animation: orb-float-reverse 10s ease-in-out infinite;
}
@keyframes orb-float {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(20px, -30px) scale(1.05); }
  66% { transform: translate(-15px, 15px) scale(0.95); }
}
@keyframes orb-float-reverse {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(-25px, 20px) scale(0.95); }
  66% { transform: translate(20px, -25px) scale(1.08); }
}

/* ===== 电路装饰线 ===== */
.circuit-lines {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
  opacity: 0.4;
}
.circuit-lines::before,
.circuit-lines::after {
  content: '';
  position: absolute;
  background: linear-gradient(90deg, transparent, rgba(59,130,246,0.08), transparent);
  height: 1px;
}
.circuit-lines::before {
  top: 30%;
  left: -10%;
  right: -10%;
  animation: circuit-scan 6s ease-in-out infinite;
}
.circuit-lines::after {
  top: 70%;
  left: -10%;
  right: -10%;
  animation: circuit-scan 8s ease-in-out infinite 2s;
}
@keyframes circuit-scan {
  0%, 100% { opacity: 0; transform: translateX(-20%); }
  50% { opacity: 1; transform: translateX(20%); }
}

/* ===== 几何装饰点阵 ===== */
.dot-pattern {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background-image: radial-gradient(circle, rgba(59,130,246,0.06) 1px, transparent 1px);
  background-size: 24px 24px;
  opacity: 0.6;
}

/* ===== 卡片微妙渐变纹理 ===== */
.card-texture {
  position: relative;
  overflow: hidden;
}
.card-texture::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary-400), var(--primary-600), var(--primary-400));
  opacity: 0;
  transition: opacity 0.3s ease;
}
.card-hover:hover .card-texture::before {
  opacity: 0.6;
}

/* ===== 自定义滚动条 ===== */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--light-100); }
::-webkit-scrollbar-thumb { background: var(--primary-500); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--primary-600); }
::selection { background: rgba(59,130,246,0.2); color: var(--text-primary); }

/* ===== 玻璃拟态（浅色版） ===== */
.glass {
  background: rgba(255,255,255,0.8);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(0,0,0,0.06);
}
.glass-light {
  background: rgba(255,255,255,0.7);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid var(--light-200);
  box-shadow: 0 1px 3px rgba(0,0,0,0.04);
}

/* ===== 渐变文字 ===== */
.gradient-text {
  background: linear-gradient(135deg, #2563eb 0%, #3b82f6 50%, #6366f1 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ===== 发光效果 ===== */
.glow {
  box-shadow: 0 0 20px rgba(59,130,246,0.15), 0 0 60px rgba(59,130,246,0.05);
}

/* ===== 网格背景 ===== */
.grid-bg {
  background-image:
    linear-gradient(rgba(59,130,246,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(59,130,246,0.04) 1px, transparent 1px);
  background-size: 60px 60px;
}

/* ===== 导航栏 ===== */
.navbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 50;
  transition: all 0.3s ease;
}
.navbar.scrolled {
  background: rgba(255,255,255,0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--light-200);
  box-shadow: 0 1px 10px rgba(0,0,0,0.04);
}
.nav-link {
  padding: 0.5rem 1rem; border-radius: 0.5rem;
  font-size: 0.875rem; font-weight: 500;
  color: var(--text-secondary); transition: all 0.2s;
  text-decoration: none; display: inline-flex; align-items: center;
}
.nav-link:hover { color: var(--primary-600); background: rgba(59,130,246,0.06); }
.nav-link.active { color: var(--primary-600); background: rgba(59,130,246,0.08); }

/* ===== 下拉菜单 ===== */
.dropdown { position: relative; }
.dropdown-menu {
  position: absolute; top: 100%; left: 0; margin-top: 0.5rem;
  width: 12rem; border-radius: 0.75rem; overflow: hidden;
  box-shadow: 0 10px 40px rgba(0,0,0,0.08);
  opacity: 0; visibility: hidden; transform: translateY(-10px) scale(0.95);
  transition: all 0.2s ease;
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(20px);
  border: 1px solid var(--light-200);
}
.dropdown:hover .dropdown-menu {
  opacity: 1; visibility: visible; transform: translateY(0) scale(1);
}
.dropdown-item {
  display: block; padding: 0.75rem 1rem;
  font-size: 0.875rem; color: var(--text-secondary);
  text-decoration: none; transition: all 0.2s;
  border-bottom: 1px solid var(--light-100);
}
.dropdown-item:last-child { border-bottom: none; }
.dropdown-item:hover { color: var(--primary-600); background: rgba(59,130,246,0.05); }

/* ===== 按钮 ===== */
.btn-primary {
  display: inline-flex; align-items: center; gap: 0.5rem;
  padding: 0.75rem 2rem; border-radius: 0.75rem;
  background: linear-gradient(to right, var(--primary-600), var(--primary-500));
  color: #fff; font-weight: 600; font-size: 0.875rem;
  text-decoration: none; border: none; cursor: pointer;
  transition: all 0.3s;
  box-shadow: 0 4px 15px rgba(59,130,246,0.25);
}
.btn-primary:hover {
  background: linear-gradient(to right, var(--primary-500), var(--primary-400));
  box-shadow: 0 8px 25px rgba(59,130,246,0.35);
  transform: translateY(-2px);
}
.btn-glass {
  display: inline-flex; align-items: center; gap: 0.5rem;
  padding: 0.75rem 2rem; border-radius: 0.75rem;
  background: rgba(255,255,255,0.8);
  backdrop-filter: blur(10px);
  border: 1px solid var(--light-200);
  color: var(--text-primary); font-weight: 600; font-size: 0.875rem;
  text-decoration: none; cursor: pointer;
  transition: all 0.3s;
}
.btn-glass:hover { background: rgba(255,255,255,1); transform: translateY(-2px); box-shadow: 0 4px 15px rgba(0,0,0,0.06); }

/* ===== 卡片悬浮效果 ===== */
.card-hover {
  transition: all 0.3s ease;
}
.card-hover:hover {
  transform: translateY(-4px);
  background: rgba(255,255,255,0.95);
  box-shadow: 0 12px 30px rgba(0,0,0,0.06);
  border-color: rgba(59,130,246,0.2);
}
.card-hover:hover .card-icon {
  transform: scale(1.1);
}
.card-icon { transition: transform 0.3s ease; }

/* ===== 加载动画 ===== */
.loading-screen {
  position: fixed; inset: 0; z-index: 9999;
  display: flex; align-items: center; justify-content: center;
  background: #ffffff;
  transition: opacity 0.6s ease;
}
.loading-screen.fade-out { opacity: 0; pointer-events: none; }
.loading-screen::after {
  content: ''; position: absolute; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--primary-500), transparent);
  animation: scan-line 2s ease-in-out infinite;
}
@keyframes scan-line {
  0% { transform: translateY(-100%); }
  100% { transform: translateY(100vh); }
}
@keyframes pulse-ring {
  0%, 100% { transform: scale(1); opacity: 0.3; }
  50% { transform: scale(1.3); opacity: 0.8; }
}
@keyframes float-particle {
  0%, 100% { transform: translateY(-20px); opacity: 0.2; }
  50% { transform: translateY(20px); opacity: 0.6; }
}

/* ===== 页面Banner通用（浅色版） ===== */
.page-banner {
  position: relative;
  padding: 8rem 0 5rem;
  overflow: hidden;
}
.page-banner::before {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(to bottom right, #f0f7ff, #f8fafc, #eff6ff);
}
.page-banner::after {
  content: ''; position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(59,130,246,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(59,130,246,0.04) 1px, transparent 1px);
  background-size: 60px 60px;
}

/* ===== 表单样式 ===== */
.form-input {
  width: 100%; padding: 0.75rem 1rem;
  border-radius: 0.75rem;
  background: #ffffff;
  border: 1px solid var(--light-200);
  color: var(--text-primary); font-size: 0.875rem;
  font-family: inherit;
  transition: all 0.2s;
  outline: none;
}
.form-input::placeholder { color: var(--text-light); }
.form-input:focus {
  border-color: var(--primary-500);
  box-shadow: 0 0 0 3px rgba(59,130,246,0.1);
  background: #ffffff;
}
.form-label {
  display: block; font-size: 0.875rem;
  font-weight: 500; color: var(--text-primary);
  margin-bottom: 0.375rem;
}

/* ===== 分页 ===== */
.page-btn {
  width: 2.5rem; height: 2.5rem;
  border-radius: 0.5rem; font-size: 0.875rem;
  font-weight: 500; border: none; cursor: pointer;
  color: var(--text-muted); background: #ffffff;
  border: 1px solid var(--light-200);
  transition: all 0.2s;
}
.page-btn:hover { color: var(--primary-600); background: rgba(59,130,246,0.05); border-color: var(--primary-400); }
.page-btn.active {
  color: #fff;
  background: var(--primary-500);
  border-color: var(--primary-500);
}

/* ===== 筛选按钮 ===== */
.filter-btn {
  padding: 0.5rem 1.25rem; border-radius: 0.5rem;
  font-size: 0.875rem; font-weight: 500;
  color: var(--text-muted); cursor: pointer;
  background: #ffffff;
  border: 1px solid var(--light-200);
  transition: all 0.2s;
}
.filter-btn:hover { color: var(--primary-600); background: rgba(59,130,246,0.05); border-color: var(--primary-400); }
.filter-btn.active {
  color: #fff;
  background: var(--primary-500);
  border-color: var(--primary-500);
}

/* ===== 时间轴 ===== */
.timeline-line {
  position: absolute; left: 50%; top: 0; bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, transparent, rgba(59,130,246,0.2), transparent);
}
.timeline-dot {
  width: 1rem; height: 1rem; border-radius: 50%;
  background: var(--primary-500);
  border: 4px solid #ffffff;
  box-shadow: 0 0 0 2px rgba(59,130,246,0.2), 0 0 15px rgba(59,130,246,0.15);
  position: relative; z-index: 10;
}

/* ===== 移动端菜单 ===== */
.mobile-menu {
  max-height: 0; overflow: hidden;
  transition: max-height 0.3s ease;
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(20px);
  border-top: 1px solid var(--light-200);
}
.mobile-menu.open { max-height: 500px; }

/* ===== 鼠标追踪光晕（浅色适配） ===== */
.cursor-glow {
  position: fixed;
  width: 150px;
  height: 150px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(59,130,246,0.1) 0%, rgba(59,130,246,0.03) 40%, transparent 70%);
  pointer-events: none;
  z-index: 9998;
  transform: translate(-50%, -50%);
  transition: width 0.3s ease, height 0.3s ease, background 0.3s ease, opacity 0.3s ease;
  opacity: 0;
  will-change: left, top;
}
.cursor-glow.active { opacity: 1; }
.cursor-glow.hover {
  width: 220px;
  height: 220px;
  background: radial-gradient(circle, rgba(59,130,246,0.15) 0%, rgba(99,102,241,0.06) 40%, transparent 70%);
}
@media (hover: none), (max-width: 768px) {
  .cursor-glow { display: none !important; }
}

/* ===== 3D倾斜卡片 ===== */
.tilt-card {
  transform-style: preserve-3d;
  perspective: 1000px;
}
.tilt-card .card-icon {
  transition: transform 0.3s ease;
}
.tilt-card:hover .card-icon {
  transform: scale(1.1) translateZ(20px);
}

/* ===== 合作伙伴跑马灯 ===== */
.marquee-container {
  overflow: hidden;
  width: 100%;
  -webkit-mask-image: linear-gradient(to right, transparent, black 10%, black 90%, transparent);
  mask-image: linear-gradient(to right, transparent, black 10%, black 90%, transparent);
}
.marquee-track {
  display: flex;
  gap: 1rem;
  width: max-content;
  animation: marquee-scroll 30s linear infinite;
}
.marquee-track:hover {
  animation-play-state: paused;
}
.marquee-item {
  flex-shrink: 0;
  width: 12rem;
  height: 5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 0.75rem;
  background: #ffffff;
  border: 1px solid var(--light-200);
  box-shadow: 0 1px 3px rgba(0,0,0,0.04);
  transition: all 0.3s ease;
  padding: 0 1rem;
}
.marquee-item:hover {
  background: #ffffff;
  border-color: rgba(59,130,246,0.3);
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(0,0,0,0.06);
}
@keyframes marquee-scroll {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

/* ===== CTA区域动画（纯CSS，不依赖AOS） ===== */
.cta-section {
  opacity: 0;
  transform: translateY(30px);
  animation: cta-reveal 0.8s ease forwards;
  animation-delay: 0.3s;
}
@keyframes cta-reveal {
  to { opacity: 1; transform: translateY(0); }
}

/* ===== CTA光斑动画 ===== */
.cta-light {
  position: absolute;
  border-radius: 50%;
  filter: blur(60px);
  opacity: 0.15;
  animation: cta-float 8s ease-in-out infinite;
}
.cta-light:nth-child(2) { animation-delay: -3s; animation-duration: 10s; }
.cta-light:nth-child(3) { animation-delay: -6s; animation-duration: 12s; }
@keyframes cta-float {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(30px, -20px) scale(1.1); }
  66% { transform: translate(-20px, 15px) scale(0.9); }
}

/* ===== 新闻模态弹窗（浅色版） ===== */
.news-modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 9000;
  background: rgba(0,0,0,0.3);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  opacity: 0;
  transition: opacity 0.3s ease;
}
.news-modal-overlay.active { opacity: 1; }
.news-modal {
  background: #ffffff;
  border: 1px solid var(--light-200);
  border-radius: 1.5rem;
  max-width: 640px;
  width: 100%;
  max-height: 80vh;
  overflow-y: auto;
  padding: 2rem;
  position: relative;
  transform: translateY(20px) scale(0.95);
  transition: transform 0.3s ease;
  box-shadow: 0 25px 60px rgba(0,0,0,0.1);
}
.news-modal-overlay.active .news-modal {
  transform: translateY(0) scale(1);
}
.news-modal::-webkit-scrollbar { width: 6px; }
.news-modal::-webkit-scrollbar-track { background: transparent; }
.news-modal::-webkit-scrollbar-thumb { background: var(--light-300); border-radius: 3px; }
.news-modal-close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  width: 2rem;
  height: 2rem;
  border-radius: 50%;
  background: var(--light-100);
  border: none;
  color: var(--text-muted);
  font-size: 1.25rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s;
  line-height: 1;
}
.news-modal-close:hover {
  background: var(--light-200);
  color: var(--text-primary);
}

/* ===== Section过渡效果 ===== */
.section-divider {
  position: relative;
}
.section-divider::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 10%;
  right: 10%;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(59,130,246,0.1), transparent);
  pointer-events: none;
}

/* ===== Hero 轮播 ===== */
.hero-carousel {
  position: relative;
  width: 100%;
  min-height: 100vh;
  overflow: hidden;
}
.hero-slide {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  opacity: 0;
  transition: opacity 0.8s ease;
  pointer-events: none;
}
.hero-slide.active {
  opacity: 1;
  pointer-events: auto;
  z-index: 2;
}
.hero-slide-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.hero-slide-content {
  position: relative;
  z-index: 3;
  max-width: 120rem;
  margin: 0 auto;
  padding: 0 2rem;
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  align-items: center;
}
@media (min-width: 640px) {
  .hero-slide-content {
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
  }
}

/* 轮播产品图 */
.hero-slide-image {
  position: relative;
  z-index: 3;
  display: none;
  justify-content: center;
  align-items: center;
}
@media (min-width: 640px) {
  .hero-slide-image { display: flex; }
}
.hero-slide-image img {
  max-width: 100%;
  max-height: 420px;
  object-fit: contain;
  border-radius: 1.5rem;
  filter: drop-shadow(0 20px 40px rgba(0,0,0,0.08)) drop-shadow(0 4px 12px rgba(0,0,0,0.04));
  animation: hero-img-float 6s ease-in-out infinite;
  transition: transform 0.8s ease;
}
.hero-slide.active .hero-slide-image img {
  animation: hero-img-float 6s ease-in-out infinite, hero-img-enter 0.8s ease 0.3s both;
}
@keyframes hero-img-float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}
@keyframes hero-img-enter {
  from { opacity: 0; transform: translateY(30px) scale(0.95); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

/* 产品图装饰光晕 */
.hero-slide-image::before {
  content: '';
  position: absolute;
  width: 80%;
  height: 80%;
  border-radius: 50%;
  filter: blur(60px);
  opacity: 0.3;
  z-index: -1;
}
.hero-slide-text .slide-tag,
.hero-slide-text .slide-title,
.hero-slide-text .slide-desc,
.hero-slide-text .slide-btns,
.hero-slide-image {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.hero-slide.active .slide-tag { opacity: 1; transform: translateY(0); transition-delay: 0.2s; }
.hero-slide.active .slide-title { opacity: 1; transform: translateY(0); transition-delay: 0.4s; }
.hero-slide.active .slide-desc { opacity: 1; transform: translateY(0); transition-delay: 0.6s; }
.hero-slide.active .slide-btns { opacity: 1; transform: translateY(0); transition-delay: 0.8s; }
.hero-slide.active .hero-slide-image { opacity: 1; transform: translateY(0); transition-delay: 0.5s; }

/* 轮播箭头 */
.hero-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 10;
  width: 3rem;
  height: 3rem;
  border-radius: 50%;
  background: rgba(255,255,255,0.8);
  border: 1px solid var(--light-200);
  color: var(--text-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.3s;
  backdrop-filter: blur(10px);
}
.hero-arrow:hover {
  background: #ffffff;
  box-shadow: 0 4px 15px rgba(0,0,0,0.08);
}
.hero-arrow-left { left: 1.5rem; }
.hero-arrow-right { right: 1.5rem; }

/* 轮播指示器 */
.hero-dots {
  position: absolute;
  bottom: 2.5rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 10;
  display: flex;
  gap: 0.75rem;
}
.hero-dot {
  width: 2.5rem;
  height: 0.25rem;
  border-radius: 9999px;
  background: var(--light-300);
  cursor: pointer;
  transition: all 0.3s;
  border: none;
  padding: 0;
}
.hero-dot.active {
  background: var(--primary-500);
  width: 3.5rem;
}

/* 浮动装饰元素 */
.hero-float {
  position: absolute;
  border-radius: 50%;
  opacity: 0.5;
  animation: hero-float-anim 6s ease-in-out infinite;
}
@keyframes hero-float-anim {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  50% { transform: translateY(-20px) rotate(5deg); }
}

/* ===== 响应式 ===== */
@media (max-width: 768px) {
  .timeline-line { left: 1rem; }
  .hide-mobile { display: none; }
  .hero-arrow { display: none; }
  .bg-orb { filter: blur(60px); opacity: 0.25; }
  .circuit-lines { display: none; }
  .dot-pattern { opacity: 0.3; background-size: 32px 32px; }
}
@media (min-width: 768px) {
  .hide-desktop { display: none !important; }
}