/* =========================================
   RotorScore / 广州透明科技 官网样式
   ========================================= */
:root {
  --primary: #0a1130;
  --primary-2: #131a47;
  --accent: #00d4ff;
  --accent-2: #7c3aed;
  --text-dark: #1a1f3a;
  --text-light: #64748b;
  --bg-light: #f7f9fc;
  --border: #e2e8f0;
  --gradient: linear-gradient(135deg, #00d4ff 0%, #7c3aed 100%);
  --gradient-soft: linear-gradient(135deg, rgba(0,212,255,0.08) 0%, rgba(124,58,237,0.08) 100%);
  --shadow-sm: 0 2px 8px rgba(10, 17, 48, 0.06);
  --shadow-md: 0 10px 30px rgba(10, 17, 48, 0.08);
  --shadow-lg: 0 20px 60px rgba(10, 17, 48, 0.12);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Segoe UI", Roboto, sans-serif;
  color: var(--text-dark);
  line-height: 1.6;
  background: #fff;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
.container { max-width: 1240px; margin: 0 auto; padding: 0 24px; }

/* ========== 顶部导航 ========== */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  background: rgba(10, 17, 48, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  transition: all 0.3s ease;
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 72px; }
.logo { display: flex; align-items: center; gap: 12px; color: #fff; font-weight: 700; font-size: 20px; letter-spacing: 0.5px; }
.logo-mark {
  width: 38px; height: 38px; border-radius: 10px;
  background: var(--gradient);
  display: flex; align-items: center; justify-content: center;
  font-size: 20px; font-weight: 800; color: #fff;
  box-shadow: 0 4px 14px rgba(0, 212, 255, 0.35);
}
.logo small { display: block; font-size: 11px; font-weight: 400; color: rgba(255,255,255,0.6); letter-spacing: 2px; }
.nav-links { display: flex; gap: 36px; }
.nav-links a {
  color: rgba(255, 255, 255, 0.78);
  font-size: 15px; font-weight: 500;
  position: relative; transition: color 0.3s;
}
.nav-links a:hover { color: #fff; }
.nav-links a::after {
  content: ""; position: absolute; bottom: -8px; left: 50%; transform: translateX(-50%);
  width: 0; height: 2px; background: var(--accent);
  transition: width 0.3s;
}
.nav-links a:hover::after { width: 24px; }
.nav-cta {
  padding: 10px 22px; border-radius: 8px;
  background: var(--gradient); color: #fff !important; font-size: 14px; font-weight: 600;
  transition: transform 0.2s, box-shadow 0.3s;
}
.nav-cta:hover { transform: translateY(-1px); box-shadow: 0 8px 20px rgba(0, 212, 255, 0.4); }
.nav-cta::after { display: none; }

.menu-toggle { display: none; background: none; border: none; color: #fff; font-size: 24px; cursor: pointer; }

/* ========== Hero ========== */
.hero {
  position: relative; min-height: 100vh;
  background: linear-gradient(135deg, #050816 0%, #0a1130 50%, #131a47 100%);
  display: flex; align-items: center; overflow: hidden;
  padding-top: 72px;
}
.hero-bg {
  position: absolute; inset: 0; z-index: 0;
  background: url('images/hero-bg.png') center/cover no-repeat;
  opacity: 0.35; mix-blend-mode: screen;
}
.hero::before {
  content: ""; position: absolute; inset: 0; z-index: 1;
  background: radial-gradient(circle at 70% 40%, rgba(0, 212, 255, 0.18) 0%, transparent 50%),
              radial-gradient(circle at 30% 70%, rgba(124, 58, 237, 0.18) 0%, transparent 50%);
}
.hero::after {
  content: ""; position: absolute; inset: 0; z-index: 1;
  background-image:
    linear-gradient(rgba(255,255,255,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.04) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse at center, #000 30%, transparent 70%);
}
.hero-inner { position: relative; z-index: 2; display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 60px; align-items: center; padding: 80px 0; }
.hero-text { color: #fff; }
.hero-tag {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 8px 16px; border-radius: 30px;
  background: rgba(0, 212, 255, 0.12); border: 1px solid rgba(0, 212, 255, 0.3);
  color: var(--accent); font-size: 13px; font-weight: 500; letter-spacing: 1px;
  margin-bottom: 28px;
}
.hero-tag .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 12px var(--accent); animation: pulse 2s infinite; }
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.4; } }
.hero h1 {
  font-size: clamp(36px, 5vw, 64px); font-weight: 800; line-height: 1.15;
  margin-bottom: 24px; letter-spacing: -1px;
}
.hero h1 .accent {
  background: linear-gradient(135deg, #00d4ff 0%, #a78bfa 100%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero p.lead {
  font-size: 18px; color: rgba(255, 255, 255, 0.75);
  max-width: 540px; margin-bottom: 40px; line-height: 1.7;
}
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 14px 28px; border-radius: 10px;
  font-size: 15px; font-weight: 600; cursor: pointer;
  transition: all 0.3s; border: none;
}
.btn-primary { background: var(--gradient); color: #fff; box-shadow: 0 10px 30px rgba(0, 212, 255, 0.3); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 14px 36px rgba(0, 212, 255, 0.45); }
.btn-ghost { background: rgba(255, 255, 255, 0.08); color: #fff; border: 1px solid rgba(255, 255, 255, 0.18); backdrop-filter: blur(8px); }
.btn-ghost:hover { background: rgba(255, 255, 255, 0.14); }

.hero-stats { display: flex; gap: 48px; margin-top: 56px; padding-top: 32px; border-top: 1px solid rgba(255,255,255,0.1); }
.stat .v { font-size: 32px; font-weight: 800; color: #fff; line-height: 1; }
.stat .v .unit { font-size: 16px; font-weight: 500; color: var(--accent); margin-left: 2px; }
.stat .l { font-size: 13px; color: rgba(255, 255, 255, 0.55); margin-top: 8px; }

.hero-visual {
  position: relative; height: 480px;
  display: flex; align-items: center; justify-content: center;
}
.orb {
  position: absolute; border-radius: 50%; filter: blur(60px); opacity: 0.55;
}
.orb-1 { width: 360px; height: 360px; background: var(--accent); top: -40px; right: -40px; }
.orb-2 { width: 280px; height: 280px; background: var(--accent-2); bottom: -40px; left: -40px; }
.hero-card {
  position: relative; z-index: 2;
  width: 100%; max-width: 460px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 20px; padding: 28px; backdrop-filter: blur(20px);
  box-shadow: var(--shadow-lg);
}
.hero-card-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 20px; }
.hero-card-title { color: #fff; font-weight: 600; font-size: 15px; display: flex; align-items: center; gap: 8px; }
.hero-card-title .dot { width: 8px; height: 8px; border-radius: 50%; background: #22c55e; box-shadow: 0 0 10px #22c55e; }
.hero-card .badge { padding: 4px 10px; border-radius: 6px; background: rgba(34, 197, 94, 0.15); color: #22c55e; font-size: 11px; font-weight: 600; }
.hero-card-screen {
  aspect-ratio: 16 / 10; border-radius: 12px; overflow: hidden;
  background: linear-gradient(135deg, #0a1130 0%, #1e2a5e 100%);
  display: flex; align-items: center; justify-content: center;
  position: relative;
}
.hero-card-screen svg { width: 70%; height: 70%; }
.scan-line {
  position: absolute; left: 0; right: 0; height: 2px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  box-shadow: 0 0 12px var(--accent);
  animation: scan 3s infinite;
}
@keyframes scan { 0% { top: 10%; } 100% { top: 90%; } }
.hero-card-stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-top: 18px; }
.hero-card-stat { background: rgba(255,255,255,0.04); border-radius: 10px; padding: 12px; text-align: center; }
.hero-card-stat .v { color: #fff; font-weight: 700; font-size: 18px; }
.hero-card-stat .l { color: rgba(255,255,255,0.5); font-size: 11px; margin-top: 4px; }

/* ========== 通用 Section ========== */
section { padding: 100px 0; position: relative; }
.section-light { background: var(--bg-light); }
.section-white { background: #fff; }

.section-head { text-align: center; margin-bottom: 64px; }
.section-tag {
  display: inline-block; padding: 6px 14px; border-radius: 20px;
  background: var(--gradient-soft); color: var(--accent);
  font-size: 13px; font-weight: 600; letter-spacing: 1px;
  margin-bottom: 16px;
}
.section-head h2 {
  font-size: clamp(28px, 3.6vw, 42px); font-weight: 800;
  color: var(--primary); margin-bottom: 16px; letter-spacing: -0.5px;
}
.section-head p { color: var(--text-light); font-size: 17px; max-width: 640px; margin: 0 auto; }

/* ========== 关于我们 ========== */
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: center; }
.about-text h2 { font-size: 36px; font-weight: 800; color: var(--primary); margin-bottom: 20px; line-height: 1.3; }
.about-text .lead { font-size: 17px; color: var(--text-light); margin-bottom: 28px; line-height: 1.8; }
.about-features { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin-top: 32px; }
.about-feature {
  padding: 20px; border-radius: 12px; background: #fff;
  border: 1px solid var(--border); transition: all 0.3s;
}
.about-feature:hover { border-color: var(--accent); transform: translateY(-3px); box-shadow: var(--shadow-md); }
.about-feature .ic { width: 44px; height: 44px; border-radius: 10px; background: var(--gradient-soft); color: var(--accent); display: flex; align-items: center; justify-content: center; margin-bottom: 12px; }
.about-feature h4 { font-size: 15px; font-weight: 700; color: var(--primary); margin-bottom: 6px; }
.about-feature p { font-size: 13px; color: var(--text-light); }

.about-visual { position: relative; }
.about-visual-frame {
  position: relative; aspect-ratio: 4 / 3; border-radius: 20px; overflow: hidden;
  background: linear-gradient(135deg, #0a1130 0%, #1e2a5e 100%);
  display: flex; align-items: center; justify-content: center;
  box-shadow: var(--shadow-lg);
}
.about-visual-frame::before {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(circle at 30% 30%, rgba(0,212,255,0.25), transparent 60%),
              radial-gradient(circle at 70% 70%, rgba(124,58,237,0.25), transparent 60%);
}
.about-visual-inner { position: relative; text-align: center; color: #fff; padding: 30px; }
.about-visual-inner .big { font-size: 64px; font-weight: 800; line-height: 1; background: var(--gradient); -webkit-background-clip: text; background-clip: text; color: transparent; }
.about-visual-inner .lbl { font-size: 14px; color: rgba(255,255,255,0.7); margin-top: 8px; letter-spacing: 2px; }
.floating-card {
  position: absolute; padding: 14px 18px; border-radius: 12px;
  background: rgba(255,255,255,0.95); backdrop-filter: blur(12px);
  box-shadow: var(--shadow-md); display: flex; align-items: center; gap: 10px;
  font-size: 13px; font-weight: 600; color: var(--primary);
}
.floating-card .ic { width: 32px; height: 32px; border-radius: 8px; background: var(--gradient-soft); color: var(--accent); display: flex; align-items: center; justify-content: center; }
.fc-1 { top: 20px; right: -20px; animation: float 4s ease-in-out infinite; }
.fc-2 { bottom: 30px; left: -30px; animation: float 4s ease-in-out infinite reverse; }
@keyframes float { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-10px); } }

/* ========== 产品中心 ========== */
.products { background: var(--bg-light); }
.product-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.product-card {
  background: #fff; border-radius: 20px; overflow: hidden;
  border: 1px solid var(--border); transition: all 0.4s;
  display: flex; flex-direction: column;
  color: inherit; text-decoration: none;
}
.product-more {
  margin-top: 16px; font-size: 14px; font-weight: 600; color: var(--accent);
  transition: transform 0.3s;
}
.product-card:hover .product-more { transform: translateX(4px); }
.products-more-banner {
  margin-top: 40px; padding: 32px 40px; border-radius: 18px;
  background: linear-gradient(135deg, #0a1130 0%, #1e2a5e 100%);
  color: #fff; display: flex; align-items: center; justify-content: space-between; gap: 24px; flex-wrap: wrap;
}
.products-more-banner strong { display: block; font-size: 18px; margin-bottom: 6px; }
.products-more-banner span { font-size: 14px; color: rgba(255,255,255,0.7); }
.product-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-lg); border-color: transparent; }
.product-img-wrap {
  position: relative; aspect-ratio: 4 / 3;
  background: linear-gradient(135deg, #f1f5f9 0%, #e2e8f0 100%);
  display: flex; align-items: center; justify-content: center;
  overflow: hidden;
}
.product-img-wrap::before {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(circle at 50% 50%, rgba(0,212,255,0.08), transparent 70%);
}
.product-img-wrap img { width: 80%; height: 80%; object-fit: contain; position: relative; z-index: 1; transition: transform 0.5s; }
.product-card:hover .product-img-wrap img { transform: scale(1.06); }
.product-tag {
  position: absolute; top: 16px; left: 16px; z-index: 2;
  padding: 5px 12px; border-radius: 6px;
  background: rgba(10, 17, 48, 0.85); color: #fff;
  font-size: 11px; font-weight: 600; letter-spacing: 0.5px;
  backdrop-filter: blur(8px);
}
.product-body { padding: 28px; flex: 1; display: flex; flex-direction: column; }
.product-body h3 { font-size: 22px; font-weight: 700; color: var(--primary); margin-bottom: 10px; }
.product-body .sub { font-size: 13px; color: var(--accent); font-weight: 600; letter-spacing: 1px; text-transform: uppercase; margin-bottom: 14px; }
.product-body p { font-size: 14px; color: var(--text-light); line-height: 1.7; margin-bottom: 20px; }
.product-specs { display: flex; flex-wrap: wrap; gap: 8px; margin-top: auto; }
.product-specs span {
  padding: 5px 12px; border-radius: 6px;
  background: var(--bg-light); color: var(--text-light);
  font-size: 12px; font-weight: 500;
}

/* ========== 技术优势 ========== */
.advantage-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.adv-card {
  padding: 32px 24px; border-radius: 16px;
  background: #fff; border: 1px solid var(--border);
  text-align: center; transition: all 0.3s;
}
.adv-card:hover { transform: translateY(-4px); border-color: var(--accent); box-shadow: var(--shadow-md); }
.adv-icon {
  width: 64px; height: 64px; margin: 0 auto 18px;
  border-radius: 16px; background: var(--gradient);
  display: flex; align-items: center; justify-content: center;
  color: #fff;
  box-shadow: 0 10px 24px rgba(0, 212, 255, 0.25);
}
.adv-card h4 { font-size: 18px; font-weight: 700; color: var(--primary); margin-bottom: 10px; }
.adv-card p { font-size: 14px; color: var(--text-light); line-height: 1.7; }

/* ========== 应用场景 ========== */
.scenes { background: var(--bg-light); }
.scene-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.scene-card {
  position: relative; aspect-ratio: 4 / 3; border-radius: 18px; overflow: hidden;
  background: linear-gradient(135deg, #0a1130 0%, #1e2a5e 100%);
  color: #fff; padding: 28px; display: flex; flex-direction: column; justify-content: flex-end;
  cursor: pointer; transition: all 0.4s;
}
.scene-card::before {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(circle at 80% 20%, rgba(0,212,255,0.25), transparent 50%);
  transition: opacity 0.4s;
}
.scene-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.scene-card:hover::before { opacity: 1.4; }
.scene-card .scene-num {
  position: absolute; top: 24px; right: 24px;
  font-size: 60px; font-weight: 800; line-height: 1;
  background: linear-gradient(135deg, rgba(0,212,255,0.6), rgba(124,58,237,0.6));
  -webkit-background-clip: text; background-clip: text; color: transparent;
  opacity: 0.6;
}
.scene-card h4 { font-size: 22px; font-weight: 700; margin-bottom: 10px; position: relative; z-index: 1; }
.scene-card p { font-size: 14px; color: rgba(255,255,255,0.7); position: relative; z-index: 1; }
.scene-icon {
  position: absolute; top: 24px; left: 24px;
  width: 48px; height: 48px; border-radius: 12px;
  background: rgba(0,212,255,0.15); border: 1px solid rgba(0,212,255,0.3);
  display: flex; align-items: center; justify-content: center; color: var(--accent);
}

/* ========== 联系我们 ========== */
.contact-grid { display: grid; grid-template-columns: 1fr 1.1fr; gap: 60px; align-items: stretch; }
.contact-info h2 { font-size: 36px; font-weight: 800; color: var(--primary); margin-bottom: 16px; line-height: 1.3; }
.contact-info .lead { font-size: 16px; color: var(--text-light); margin-bottom: 36px; }
.contact-list { display: flex; flex-direction: column; gap: 18px; }
.contact-item {
  display: flex; align-items: flex-start; gap: 16px;
  padding: 18px 20px; border-radius: 12px;
  background: var(--bg-light); border: 1px solid var(--border);
}
.contact-item .ic {
  width: 44px; height: 44px; border-radius: 10px;
  background: var(--gradient); color: #fff;
  display: flex; align-items: center; justify-content: center; flex-shrink: 0;
}
.contact-item h5 { font-size: 14px; font-weight: 700; color: var(--primary); margin-bottom: 4px; }
.contact-item p { font-size: 14px; color: var(--text-light); }
.contact-form {
  background: #fff; border-radius: 20px; padding: 36px;
  border: 1px solid var(--border); box-shadow: var(--shadow-md);
}
.contact-form h3 { font-size: 22px; font-weight: 700; color: var(--primary); margin-bottom: 8px; }
.contact-form .sub { font-size: 14px; color: var(--text-light); margin-bottom: 24px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-bottom: 14px; }
.form-group { margin-bottom: 14px; }
.form-group label { display: block; font-size: 13px; font-weight: 600; color: var(--primary); margin-bottom: 6px; }
.form-control {
  width: 100%; padding: 12px 14px; border-radius: 10px;
  border: 1px solid var(--border); font-size: 14px;
  background: #fff; transition: all 0.2s; font-family: inherit;
}
.form-control:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px rgba(0,212,255,0.15); }
textarea.form-control { resize: vertical; min-height: 110px; }
.form-submit {
  width: 100%; padding: 14px; border-radius: 10px;
  background: var(--gradient); color: #fff;
  font-size: 15px; font-weight: 600; border: none; cursor: pointer;
  margin-top: 8px;
  transition: all 0.3s;
}
.form-submit:hover { transform: translateY(-1px); box-shadow: 0 10px 24px rgba(0,212,255,0.3); }

/* ========== Footer ========== */
footer {
  background: var(--primary); color: rgba(255,255,255,0.7);
  padding: 60px 0 28px;
}
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 40px; }
.footer-brand .logo { margin-bottom: 16px; }
.footer-brand p { font-size: 14px; line-height: 1.7; max-width: 320px; }
.footer-col h5 { font-size: 14px; font-weight: 700; color: #fff; margin-bottom: 16px; letter-spacing: 0.5px; }
.footer-col ul { list-style: none; }
.footer-col li { margin-bottom: 10px; }
.footer-col a { font-size: 13px; transition: color 0.2s; }
.footer-col a:hover { color: var(--accent); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding-top: 24px; display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 12px;
  font-size: 12px;
}
.footer-bottom a:hover { color: var(--accent); }
.footer-icp { display: flex; gap: 16px; flex-wrap: wrap; }

/* ========== 响应式 ========== */
@media (max-width: 960px) {
  .nav-links { display: none; }
  .nav-links.open { display: flex; flex-direction: column; gap: 0; position: absolute; top: 72px; left: 0; right: 0; background: var(--primary); padding: 16px 24px; border-bottom: 1px solid rgba(255,255,255,0.1); }
  .nav-links.open a { padding: 12px 0; border-bottom: 1px solid rgba(255,255,255,0.06); }
  .menu-toggle { display: block; }
  .nav-cta { display: none; }
  .hero-inner { grid-template-columns: 1fr; padding: 60px 0; gap: 40px; }
  .hero-visual { height: 360px; }
  .about-grid, .contact-grid { grid-template-columns: 1fr; gap: 40px; }
  .product-grid, .scene-grid { grid-template-columns: 1fr; }
  .advantage-grid { grid-template-columns: 1fr 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  section { padding: 72px 0; }
}
@media (max-width: 560px) {
  .hero-stats { gap: 28px; }
  .advantage-grid { grid-template-columns: 1fr; }
  .about-features { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
}