/* ============================================================
   WEEX唯客官网 - 主样式表
   配色：深色背景(#0b1320) + WEEX品牌蓝(#1a6df5) + 天蓝渐变(#00b4d8→#0077b6) + 白色
   ============================================================ */

/* === Reset & Base === */
*, *::before, *::after { margin:0; padding:0; box-sizing:border-box; }
html { scroll-behavior:smooth; font-size:16px; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  background: #0b1320;
  color: #e0e6ed;
  line-height: 1.7;
  overflow-x: hidden;
}
a { text-decoration:none; color:inherit; }
img { max-width:100%; height:auto; display:block; }
ul { list-style:none; }
.container { max-width:1200px; margin:0 auto; padding:0 20px; }

/* === Header & Nav === */
.site-header {
  position: fixed; top:0; left:0; right:0; z-index:1000;
  background: rgba(11,19,32,0.92);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(26,109,245,0.15);
  transition: all 0.3s ease;
}
.site-header .container {
  display:flex; align-items:center; justify-content:space-between;
  padding-top:14px; padding-bottom:14px;
}
.logo {
  font-size:1.5rem; font-weight:800; color:#fff;
  display:flex; align-items:center; gap:8px;
}
.logo span { color:#1a6df5; }
.main-nav { display:flex; align-items:center; gap:32px; }
.main-nav a {
  font-size:0.95rem; font-weight:500; color:#b0bec5;
  position:relative; padding:4px 0;
  transition:color 0.3s ease;
}
.main-nav a::after {
  content:''; position:absolute; bottom:-2px; left:0; right:0;
  height:2px; background:linear-gradient(90deg,#00b4d8,#1a6df5);
  transform:scaleX(0); transition:transform 0.3s ease;
}
.main-nav a:hover, .main-nav a.active { color:#fff; }
.main-nav a:hover::after, .main-nav a.active::after { transform:scaleX(1); }
.nav-download {
  display:inline-block; padding:10px 24px;
  background:linear-gradient(135deg,#1a6df5,#00b4d8);
  color:#fff !important; border-radius:8px;
  font-weight:600 !important; font-size:0.9rem !important;
  transition:all 0.3s ease !important;
  box-shadow: 0 4px 20px rgba(26,109,245,0.3);
}
.nav-download:hover {
  transform:translateY(-2px);
  box-shadow: 0 6px 30px rgba(26,109,245,0.5);
}
.nav-download::after { display:none !important; }
.menu-toggle { display:none; flex-direction:column; gap:5px; cursor:pointer; background:none; border:none; padding:4px; }
.menu-toggle span { display:block; width:26px; height:2.5px; background:#fff; border-radius:2px; transition:all 0.3s ease; }

/* === Hero Section === */
.hero {
  padding:160px 0 100px;
  position:relative; overflow:hidden;
  background:radial-gradient(ellipse at 30% 20%, rgba(26,109,245,0.12) 0%, transparent 60%),
             radial-gradient(ellipse at 70% 50%, rgba(0,180,216,0.08) 0%, transparent 50%);
}
.hero .container {
  display:flex; align-items:center; justify-content:space-between;
  gap:60px;
}
.hero-content { flex:1; }
.hero-content h1 {
  font-size:3rem; font-weight:800; line-height:1.2; margin-bottom:24px;
  background:linear-gradient(135deg,#fff,#00b4d8);
  -webkit-background-clip:text; -webkit-text-fill-color:transparent;
  background-clip:text;
}
.hero-content p {
  font-size:1.15rem; color:#8899aa; margin-bottom:36px; max-width:520px;
}
.hero-stats { display:flex; gap:40px; margin-bottom:36px; }
.hero-stats .stat-item { text-align:center; }
.hero-stats .stat-num {
  font-size:2.2rem; font-weight:800; color:#1a6df5;
  background:linear-gradient(135deg,#1a6df5,#00b4d8);
  -webkit-background-clip:text; -webkit-text-fill-color:transparent;
  background-clip:text;
}
.hero-stats .stat-label { font-size:0.85rem; color:#8899aa; margin-top:4px; }
.hero-img { flex:1; display:flex; justify-content:center; }
.hero-img img { border-radius:16px; box-shadow: 0 20px 60px rgba(26,109,245,0.2); }

.btn-primary {
  display:inline-block; padding:14px 40px;
  background:linear-gradient(135deg,#1a6df5,#0077b6);
  color:#fff; border-radius:10px; font-weight:700; font-size:1rem;
  transition:all 0.3s ease;
  box-shadow: 0 6px 25px rgba(26,109,245,0.35);
}
.btn-primary:hover {
  transform:translateY(-3px);
  box-shadow: 0 10px 40px rgba(26,109,245,0.55);
}
.btn-secondary {
  display:inline-block; padding:14px 40px;
  background:rgba(255,255,255,0.05);
  border:1px solid rgba(26,109,245,0.3);
  color:#1a6df5; border-radius:10px; font-weight:700; font-size:1rem;
  transition:all 0.3s ease; margin-left:16px;
}
.btn-secondary:hover {
  background:rgba(26,109,245,0.1);
  border-color:#1a6df5;
}

/* === Sections Common === */
section { padding:100px 0; }
.section-header { text-align:center; margin-bottom:60px; }
.section-header h2 {
  font-size:2.2rem; font-weight:800; color:#fff; margin-bottom:16px;
}
.section-header p { font-size:1.05rem; color:#8899aa; max-width:600px; margin:0 auto; }

/* === Features === */
#features { background:rgba(26,109,245,0.03); }
.features-grid {
  display:grid; grid-template-columns:repeat(3, 1fr); gap:30px;
}
.feature-card {
  background:linear-gradient(135deg, rgba(26,109,245,0.08), rgba(0,180,216,0.05));
  border:1px solid rgba(26,109,245,0.12);
  border-radius:16px; padding:36px 28px;
  transition:all 0.4s ease; position:relative; overflow:hidden;
}
.feature-card::before {
  content:''; position:absolute; top:0; left:0; right:0; height:3px;
  background:linear-gradient(90deg,#1a6df5,#00b4d8);
  transform:scaleX(0); transition:transform 0.4s ease;
}
.feature-card:hover { transform:translateY(-8px); border-color:rgba(26,109,245,0.3); box-shadow:0 20px 50px rgba(26,109,245,0.12); }
.feature-card:hover::before { transform:scaleX(1); }
.feature-icon {
  width:60px; height:60px; border-radius:14px;
  background:linear-gradient(135deg,rgba(26,109,245,0.2),rgba(0,180,216,0.1));
  display:flex; align-items:center; justify-content:center;
  margin-bottom:20px; font-size:1.8rem;
}
.feature-card h3 { font-size:1.2rem; font-weight:700; color:#fff; margin-bottom:12px; }
.feature-card p { font-size:0.95rem; color:#8899aa; line-height:1.7; }

/* === Services === */
.services-grid {
  display:grid; grid-template-columns:repeat(3, 1fr); gap:30px;
}
.service-card {
  background:rgba(255,255,255,0.02);
  border:1px solid rgba(255,255,255,0.06);
  border-radius:16px; padding:36px 28px;
  transition:all 0.4s ease; text-align:center;
}
.service-card:hover {
  transform:translateY(-6px);
  border-color:rgba(26,109,245,0.25);
  box-shadow:0 15px 40px rgba(26,109,245,0.1);
  background:rgba(26,109,245,0.04);
}
.service-card h3 { font-size:1.15rem; font-weight:700; color:#fff; margin:16px 0 10px; }
.service-card p { font-size:0.92rem; color:#8899aa; }

/* === CTA === */
#cta {
  background:linear-gradient(135deg, rgba(26,109,245,0.1), rgba(0,180,216,0.08));
  text-align:center;
}
#cta h2 { font-size:2rem; font-weight:800; color:#fff; margin-bottom:16px; }
#cta p { font-size:1.1rem; color:#8899aa; margin-bottom:36px; }
.cta-buttons { display:flex; justify-content:center; gap:20px; flex-wrap:wrap; }

/* === Footer === */
.site-footer {
  background:rgba(0,0,0,0.3);
  border-top:1px solid rgba(26,109,245,0.1);
  padding:50px 0 30px;
}
.footer-grid {
  display:grid; grid-template-columns:repeat(4, 1fr); gap:40px;
  margin-bottom:40px;
}
.footer-col h4 { font-size:1.05rem; font-weight:700; color:#fff; margin-bottom:18px; }
.footer-col a { display:block; color:#8899aa; font-size:0.9rem; margin-bottom:10px; transition:color 0.3s; }
.footer-col a:hover { color:#1a6df5; }
.footer-bottom {
  text-align:center; padding-top:24px;
  border-top:1px solid rgba(255,255,255,0.05);
  color:#556677; font-size:0.85rem;
}

/* === Page Banner (Inner Pages) === */
.page-banner {
  padding:140px 0 60px;
  text-align:center;
  background:radial-gradient(ellipse at center, rgba(26,109,245,0.1) 0%, transparent 60%);
}
.page-banner h1 {
  font-size:2.6rem; font-weight:800;
  background:linear-gradient(135deg,#fff,#00b4d8);
  -webkit-background-clip:text; -webkit-text-fill-color:transparent;
  background-clip:text;
}
.page-banner p { color:#8899aa; font-size:1.1rem; margin-top:12px; max-width:600px; margin-left:auto; margin-right:auto; }

/* === About Page === */
.about-content { display:flex; gap:60px; align-items:center; }
.about-text { flex:1; }
.about-text h2 { font-size:1.8rem; color:#fff; margin-bottom:20px; }
.about-text p { color:#8899aa; margin-bottom:16px; line-height:1.8; }
.about-img { flex:1; }
.about-img img { border-radius:16px; }

.timeline { position:relative; padding:20px 0; }
.timeline::before {
  content:''; position:absolute; left:50%; top:0; bottom:0;
  width:2px; background:linear-gradient(180deg,#1a6df5,#00b4d8,rgba(26,109,245,0.1));
  transform:translateX(-50%);
}
.timeline-item {
  display:flex; align-items:flex-start; gap:30px; margin-bottom:40px;
  position:relative;
}
.timeline-item:nth-child(odd) { flex-direction:row; }
.timeline-item:nth-child(even) { flex-direction:row-reverse; text-align:right; }
.timeline-dot {
  width:16px; height:16px; border-radius:50%;
  background:#1a6df5; flex-shrink:0; margin-top:6px;
  box-shadow:0 0 15px rgba(26,109,245,0.5);
}
.timeline-content { flex:1; }
.timeline-content .year { color:#1a6df5; font-weight:700; font-size:0.9rem; }
.timeline-content h3 { color:#fff; font-size:1.1rem; margin:4px 0 8px; }
.timeline-content p { color:#8899aa; font-size:0.9rem; }

.team-grid { display:grid; grid-template-columns:repeat(4, 1fr); gap:24px; }
.team-card {
  text-align:center; padding:24px; border-radius:14px;
  background:rgba(255,255,255,0.02);
  border:1px solid rgba(255,255,255,0.06);
  transition:all 0.3s ease;
}
.team-card:hover { transform:translateY(-4px); border-color:rgba(26,109,245,0.2); }
.team-card img { width:80px; height:80px; border-radius:50%; margin:0 auto 16px; object-fit:cover; }
.team-card h3 { color:#fff; font-size:1rem; margin-bottom:4px; }
.team-card .role { color:#1a6df5; font-size:0.85rem; }

.security-grid { display:grid; grid-template-columns:repeat(3, 1fr); gap:30px; }
.security-card {
  background:rgba(255,255,255,0.02);
  border:1px solid rgba(255,255,255,0.06);
  border-radius:14px; padding:28px; text-align:center;
  transition:all 0.3s ease;
}
.security-card:hover { border-color:rgba(0,180,216,0.2); transform:translateY(-4px); }
.security-card h3 { color:#fff; font-size:1.05rem; margin:14px 0 10px; }
.security-card p { color:#8899aa; font-size:0.9rem; }

/* === FAQ Page === */
.faq-list { max-width:800px; margin:0 auto; }
.faq-category { margin-bottom:40px; }
.faq-category h2 { font-size:1.5rem; color:#1a6df5; margin-bottom:20px; padding-bottom:10px; border-bottom:2px solid rgba(26,109,245,0.2); }
.faq-item {
  margin-bottom:12px;
  background:rgba(255,255,255,0.02);
  border:1px solid rgba(255,255,255,0.06);
  border-radius:12px;
  overflow:hidden;
  transition:all 0.3s ease;
}
.faq-item:hover { border-color:rgba(26,109,245,0.2); }
.faq-item summary {
  padding:18px 24px; cursor:pointer; font-weight:600; color:#e0e6ed;
  font-size:1rem; display:flex; justify-content:space-between; align-items:center;
  user-select:none;
}
.faq-item summary::after {
  content:'+'; font-size:1.3rem; color:#1a6df5; transition:transform 0.3s ease;
}
.faq-item[open] summary::after { content:'-'; transform:rotate(180deg); }
.faq-item .faq-answer { padding:0 24px 20px; color:#8899aa; font-size:0.95rem; line-height:1.8; }
.faq-search { margin-bottom:40px; }
.faq-search input {
  width:100%; max-width:500px; margin:0 auto; display:block;
  padding:14px 20px; border-radius:10px;
  background:rgba(255,255,255,0.04);
  border:1px solid rgba(255,255,255,0.1);
  color:#fff; font-size:1rem; outline:none;
  transition:border-color 0.3s;
}
.faq-search input:focus { border-color:#1a6df5; }
.faq-search input::placeholder { color:#556677; }

/* === Contact Page === */
.contact-grid { display:grid; grid-template-columns:1fr 1fr; gap:50px; }
.contact-form { background:rgba(255,255,255,0.02); border:1px solid rgba(255,255,255,0.06); border-radius:16px; padding:36px; }
.contact-form .form-group { margin-bottom:20px; }
.contact-form label { display:block; color:#e0e6ed; font-weight:600; margin-bottom:8px; font-size:0.9rem; }
.contact-form input,
.contact-form textarea,
.contact-form select {
  width:100%; padding:12px 16px; border-radius:8px;
  background:rgba(255,255,255,0.04);
  border:1px solid rgba(255,255,255,0.1);
  color:#fff; font-size:0.95rem; outline:none;
  transition:border-color 0.3s;
}
.contact-form input:focus,
.contact-form textarea:focus { border-color:#1a6df5; }
.contact-form textarea { resize:vertical; min-height:120px; }
.contact-info { display:flex; flex-direction:column; gap:24px; }
.contact-info-item {
  background:rgba(255,255,255,0.02);
  border:1px solid rgba(255,255,255,0.06);
  border-radius:12px; padding:24px;
  transition:all 0.3s ease;
}
.contact-info-item:hover { border-color:rgba(26,109,245,0.2); }
.contact-info-item h3 { color:#fff; font-size:1.05rem; margin-bottom:10px; }
.contact-info-item p { color:#8899aa; font-size:0.92rem; }

/* === Map Section === */
.map-section { padding:0 0 100px; }
.map-grid { display:grid; grid-template-columns:repeat(4, 1fr); gap:24px; }
.map-card {
  text-align:center; padding:28px 16px;
  background:rgba(255,255,255,0.02);
  border:1px solid rgba(255,255,255,0.06);
  border-radius:14px;
  transition:all 0.3s ease;
}
.map-card:hover { border-color:rgba(26,109,245,0.2); transform:translateY(-4px); }
.map-card h3 { color:#fff; font-size:1.05rem; margin:10px 0; }

/* === Animations === */
@keyframes fadeInUp {
  from { opacity:0; transform:translateY(30px); }
  to { opacity:1; transform:translateY(0); }
}
.reveal { opacity:0; transform:translateY(30px); transition:all 0.7s ease; }
.reveal.visible { opacity:1; transform:translateY(0); }
.reveal-delay-1 { transition-delay:0.1s; }
.reveal-delay-2 { transition-delay:0.2s; }
.reveal-delay-3 { transition-delay:0.3s; }

/* === Responsive === */
@media (max-width: 1024px) {
  .features-grid, .services-grid { grid-template-columns:repeat(2, 1fr); }
  .footer-grid { grid-template-columns:repeat(2, 1fr); }
  .team-grid { grid-template-columns:repeat(2, 1fr); }
  .security-grid { grid-template-columns:repeat(2, 1fr); }
  .map-grid { grid-template-columns:repeat(2, 1fr); }
  .hero .container { flex-direction:column; text-align:center; }
  .hero-content p { margin-left:auto; margin-right:auto; }
  .hero-stats { justify-content:center; }
  .about-content { flex-direction:column; }
  .contact-grid { grid-template-columns:1fr; }
  .timeline::before { left:20px; }
  .timeline-item, .timeline-item:nth-child(even) { flex-direction:row; text-align:left; }
}
@media (max-width: 768px) {
  .main-nav { display:none; flex-direction:column; position:absolute; top:100%; left:0; right:0; background:rgba(11,19,32,0.98); padding:20px; border-top:1px solid rgba(26,109,245,0.1); }
  .main-nav.active { display:flex; }
  .menu-toggle { display:flex; }
  .hero { padding:120px 0 60px; }
  .hero-content h1 { font-size:2rem; }
  .hero-stats { gap:20px; }
  .hero-stats .stat-num { font-size:1.6rem; }
  .features-grid, .services-grid { grid-template-columns:1fr; }
  .footer-grid { grid-template-columns:1fr; }
  .team-grid { grid-template-columns:1fr; }
  .security-grid { grid-template-columns:1fr; }
  .map-grid { grid-template-columns:1fr; }
  section { padding:60px 0; }
  .section-header h2 { font-size:1.7rem; }
  .page-banner h1 { font-size:1.8rem; }
  .btn-secondary { margin-left:0; margin-top:12px; }
  .cta-buttons { flex-direction:column; align-items:center; }
}