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

body { 
  font-family: system-ui, 'PingFang SC', 'Microsoft YaHei', sans-serif; 
  overflow-x:hidden; 
  background:#0a0a0f; 
  color:#e8e6e3;
}

.container { 
  max-width:1200px; 
  margin:0 auto; 
  padding:0 24px; 
}

.section { 
  padding:80px 0; 
  position:relative;
}

.section:nth-child(even) { 
  background:#12121a; 
}

/* 独特配色：暗紫黑底 + 霓虹青绿 + 金属金 */
:root {
  --neon: #00f0b5;
  --gold: #d4a84b;
  --deep-purple: #1a0a2e;
  --dark-card: #16161e;
  --text-primary: #e8e6e3;
  --text-secondary: #8a8692;
  --glass-bg: rgba(22,22,30,0.6);
  --border-glow: rgba(0,240,181,0.15);
}

/* 导航 */
.site-header { 
  position:fixed; 
  top:0; 
  left:0; 
  width:100%; 
  z-index:1000; 
  background:rgba(10,10,15,0.92); 
  backdrop-filter:blur(16px); 
  border-bottom:1px solid rgba(0,240,181,0.08);
  transition:all 0.4s cubic-bezier(0.25,0.46,0.45,0.94);
}

.site-header:hover {
  border-bottom-color: rgba(0,240,181,0.25);
}

.header-inner { 
  display:flex; 
  align-items:center; 
  justify-content:space-between; 
  height:72px; 
  max-width:1200px; 
  margin:0 auto; 
  padding:0 24px; 
}

.logo { 
  display:flex; 
  align-items:center; 
  gap:12px; 
  font-weight:800; 
  font-size:1.3rem; 
  text-decoration:none; 
  color:var(--text-primary);
  letter-spacing:-0.5px;
  transition:0.3s;
}

.logo:hover {
  color:var(--neon);
}

.logo-icon { 
  width:40px; 
  height:40px; 
  border-radius:10px; 
  display:flex; 
  align-items:center; 
  justify-content:center; 
  font-size:1.1rem;
  background:linear-gradient(135deg, var(--neon), var(--gold));
  color:#0a0a0f;
  font-weight:900;
  box-shadow:0 0 20px rgba(0,240,181,0.3);
  transition:0.3s;
}

.logo:hover .logo-icon {
  box-shadow:0 0 30px rgba(0,240,181,0.5);
  transform:rotate(-5deg);
}

.main-nav { 
  display:flex; 
  align-items:center; 
  gap:32px; 
  list-style:none; 
}

.main-nav a { 
  text-decoration:none; 
  font-size:0.85rem; 
  font-weight:500; 
  transition:0.3s; 
  color:var(--text-secondary);
  position:relative;
  letter-spacing:0.3px;
}

.main-nav a::after {
  content:'';
  position:absolute;
  bottom:-4px;
  left:0;
  width:0;
  height:2px;
  background:var(--neon);
  transition:0.3s cubic-bezier(0.25,0.46,0.45,0.94);
}

.main-nav a:hover {
  color:var(--neon);
}

.main-nav a:hover::after {
  width:100%;
}

.nav-cta { 
  padding:10px 24px; 
  border-radius:8px; 
  color:#0a0a0f!important; 
  font-weight:700; 
  background:linear-gradient(135deg, var(--neon), #00c9a7);
  box-shadow:0 4px 15px rgba(0,240,181,0.25);
  transition:0.3s;
  letter-spacing:0.5px;
}

.nav-cta:hover {
  transform:translateY(-2px);
  box-shadow:0 8px 25px rgba(0,240,181,0.4);
  color:#0a0a0f!important;
}

.nav-cta::after {
  display:none;
}

.menu-toggle { 
  display:none; 
  background:none;
  border:none;
  color:var(--text-primary);
  font-size:1.5rem;
  cursor:pointer;
  padding:8px;
  border-radius:8px;
  transition:0.3s;
}

.menu-toggle:hover {
  background:rgba(255,255,255,0.05);
}

/* Hero */
.hero { 
  min-height:85vh; 
  display:flex; 
  align-items:center; 
  position:relative;
  background:radial-gradient(ellipse at 20% 50%, rgba(0,240,181,0.06) 0%, transparent 50%), 
              radial-gradient(ellipse at 80% 50%, rgba(212,168,75,0.04) 0%, transparent 50%);
}

.hero::before {
  content:'';
  position:absolute;
  top:0;
  left:0;
  width:100%;
  height:100%;
  background:url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%2300f0b5' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
  pointer-events:none;
}

.hero-content { 
  max-width:720px; 
  position:relative;
  z-index:1;
}

.hero-eyebrow { 
  display:inline-block; 
  font-size:0.75rem; 
  font-weight:700; 
  padding:6px 18px; 
  border-radius:20px; 
  margin-bottom:20px; 
  background:rgba(0,240,181,0.1);
  color:var(--neon);
  letter-spacing:2px;
  text-transform:uppercase;
  border:1px solid rgba(0,240,181,0.2);
  backdrop-filter:blur(4px);
}

.hero h1 { 
  font-size:3.4rem; 
  line-height:1.1; 
  margin-bottom:20px; 
  font-weight:900;
  letter-spacing:-1.5px;
  background:linear-gradient(135deg, var(--text-primary) 0%, var(--gold) 100%);
  -webkit-background-clip:text;
  -webkit-text-fill-color:transparent;
  background-clip:text;
}

.hero p { 
  font-size:1.1rem; 
  opacity:0.6; 
  max-width:560px; 
  margin-bottom:36px; 
  line-height:1.7;
  color:var(--text-secondary);
}

.hero-buttons { 
  display:flex; 
  gap:16px; 
}

.hero-image { 
  border-radius:16px; 
  overflow:hidden; 
  position:relative;
  box-shadow:0 20px 60px rgba(0,0,0,0.5);
  border:1px solid rgba(0,240,181,0.1);
}

.hero-image::after {
  content:'';
  position:absolute;
  top:0;
  left:0;
  width:100%;
  height:100%;
  background:linear-gradient(135deg, rgba(0,240,181,0.05), transparent);
  pointer-events:none;
}

.hero-image img { 
  width:100%; 
  height:auto; 
  display:block;
}

/* 按钮 */
.btn { 
  display:inline-flex; 
  align-items:center; 
  gap:10px; 
  padding:14px 32px; 
  border-radius:10px; 
  font-weight:700; 
  cursor:pointer; 
  border:none; 
  text-decoration:none; 
  transition:0.3s cubic-bezier(0.25,0.46,0.45,0.94); 
  font-size:0.9rem;
  letter-spacing:0.3px;
}

.btn-primary { 
  color:#0a0a0f; 
  background:linear-gradient(135deg, var(--neon), #00c9a7);
  box-shadow:0 4px 20px rgba(0,240,181,0.3);
}

.btn-primary:hover {
  transform:translateY(-3px);
  box-shadow:0 8px 30px rgba(0,240,181,0.45);
}

.btn-outline { 
  background:transparent; 
  border:1.5px solid rgba(0,240,181,0.3); 
  color:var(--neon);
}

.btn-outline:hover {
  border-color:var(--neon);
  background:rgba(0,240,181,0.05);
  transform:translateY(-2px);
  box-shadow:0 4px 20px rgba(0,240,181,0.15);
}

/* 标签/标题 */
.section-label { 
  display:inline-block; 
  font-size:0.7rem; 
  font-weight:700; 
  letter-spacing:3px; 
  margin-bottom:14px; 
  color:var(--neon);
  text-transform:uppercase;
  padding:4px 12px;
  border-left:3px solid var(--neon);
}

.section-title { 
  font-size:2.4rem; 
  margin-bottom:14px; 
  font-weight:900;
  letter-spacing:-0.5px;
  line-height:1.2;
}

.section-desc { 
  max-width:600px; 
  opacity:0.6; 
  margin-bottom:48px; 
  line-height:1.7;
  color:var(--text-secondary);
}

/* 卡片网格 */
.cards-grid { 
  display:grid; 
  grid-template-columns:repeat(auto-fill,minmax(280px,1fr)); 
  gap:24px; 
}

.category-card { 
  border-radius:14px; 
  padding:32px; 
  border:1px solid rgba(255,255,255,0.06); 
  transition:0.4s cubic-bezier(0.25,0.46,0.45,0.94); 
  background:var(--dark-card);
  position:relative;
  overflow:hidden;
}

.category-card::before {
  content:'';
  position:absolute;
  top:0;
  left:0;
  width:100%;
  height:3px;
  background:linear-gradient(90deg, var(--neon), var(--gold));
  opacity:0;
  transition:0.4s;
}

.category-card:hover { 
  transform:translateY(-6px); 
  box-shadow:0 12px 40px rgba(0,0,0,0.3);
  border-color:rgba(0,240,181,0.15);
}

.category-card:hover::before {
  opacity:1;
}

.card-icon { 
  width:52px; 
  height:52px; 
  border-radius:12px; 
  display:flex; 
  align-items:center; 
  justify-content:center; 
  margin-bottom:18px; 
  font-size:1.4rem;
  background:linear-gradient(135deg, rgba(0,240,181,0.1), rgba(212,168,75,0.1));
  border:1px solid rgba(0,240,181,0.1);
  transition:0.3s;
}

.category-card:hover .card-icon {
  background:linear-gradient(135deg, rgba(0,240,181,0.2), rgba(212,168,75,0.2));
  transform:scale(1.05);
}

.card-link { 
  font-weight:700; 
  font-size:0.85rem; 
  text-decoration:none; 
  color:var(--neon);
  display:inline-flex;
  align-items:center;
  gap:6px;
  transition:0.3s;
}

.card-link::after {
  content:'→';
  transition:0.3s;
}

.card-link:hover::after {
  transform:translateX(4px);
}

/* 特性块 */
.feature-block { 
  display:grid; 
  grid-template-columns:1fr 1fr; 
  gap:64px; 
  align-items:center; 
}

.feature-image { 
  border-radius:14px; 
  overflow:hidden; 
  box-shadow:0 20px 50px rgba(0,0,0,0.4);
  border:1px solid rgba(0,240,181,0.08);
  transition:0.4s;
}

.feature-image:hover {
  transform:scale(1.01);
  border-color:rgba(0,240,181,0.2);
}

.feature-image img { 
  width:100%; 
  height:auto; 
  display:block;
}

.feature-text { }

.feature-list { 
  list-style:none; 
}

.feature-list li { 
  padding:10px 0; 
  display:flex; 
  align-items:center; 
  gap:12px; 
  font-size:0.95rem;
  border-bottom:1px solid rgba(255,255,255,0.04);
}

.feature-list li::before { 
  content:'✦'; 
  font-weight:700; 
  color:var(--neon);
  font-size:0.8rem;
}

/* 数据条 */
.stats-bar { 
  display:grid; 
  grid-template-columns:repeat(4,1fr); 
  gap:24px; 
  text-align:center; 
}

.stat-item { 
  padding:32px 24px; 
  border-radius:14px; 
  border:1px solid rgba(255,255,255,0.06); 
  background:var(--dark-card);
  transition:0.4s;
  position:relative;
  overflow:hidden;
}

.stat-item::after {
  content:'';
  position:absolute;
  bottom:0;
  left:0;
  width:100%;
  height:2px;
  background:linear-gradient(90deg, var(--neon), transparent);
  opacity:0;
  transition:0.4s;
}

.stat-item:hover {
  transform:translateY(-4px);
  box-shadow:0 8px 30px rgba(0,0,0,0.3);
  border-color:rgba(0,240,181,0.1);
}

.stat-item:hover::after {
  opacity:1;
}

.stat-number { 
  font-size:2.6rem; 
  font-weight:900; 
  background:linear-gradient(135deg, var(--neon), var(--gold));
  -webkit-background-clip:text;
  -webkit-text-fill-color:transparent;
  background-clip:text;
  letter-spacing:-1px;
}

.stat-label { 
  font-size:0.85rem; 
  opacity:0.5; 
  margin-top:8px; 
  text-transform:uppercase;
  letter-spacing:1px;
}

/* 内容墙 */
.content-wall { 
  display:grid; 
  grid-template-columns:repeat(auto-fill,minmax(300px,1fr)); 
  gap:24px; 
}

.content-wall-item { 
  border-radius:14px; 
  overflow:hidden; 
  border:1px solid rgba(255,255,255,0.06); 
  transition:0.4s cubic-bezier(0.25,0.46,0.45,0.94); 
  background:var(--dark-card);
}

.content-wall-item:hover { 
  transform:translateY(-6px); 
  box-shadow:0 12px 40px rgba(0,0,0,0.3); 
  border-color:rgba(0,240,181,0.15);
}

.content-wall-item img { 
  width:100%; 
  height:220px; 
  object-fit:cover; 
  transition:0.6s;
}

.content-wall-item:hover img {
  transform:scale(1.03);
}

.content-wall-body { 
  padding:24px; 
}

/* FAQ */
.faq-list { 
  max-width:800px; 
  margin:0 auto; 
}

.faq-item { 
  border:1px solid rgba(255,255,255,0.06); 
  border-radius:12px; 
  margin-bottom:10px; 
  overflow:hidden; 
  cursor:pointer; 
  background:var(--dark-card);
  transition:0.3s;
}

.faq-item:hover {
  border-color:rgba(0,240,181,0.1);
}

.faq-item .faq-question { 
  padding:20px 24px; 
  font-weight:700; 
  display:flex; 
  justify-content:space-between; 
  align-items:center;
  font-size:0.95rem;
  letter-spacing:0.3px;
}

.faq-item .faq-question::after {
  content:'+';
  font-size:1.2rem;
  transition:0.3s;
  color:var(--neon);
}

.faq-item.open .faq-question::after {
  content:'−';
  transform:rotate(180deg);
}

.faq-item .faq-answer { 
  padding:0 24px 20px; 
  display:none; 
  opacity:0.7; 
  line-height:1.7;
  color:var(--text-secondary);
}

.faq-item.open .faq-answer { 
  display:block; 
}

/* CTA横幅 */
.cta-banner { 
  padding:64px 24px; 
  text-align:center; 
  border-radius:16px; 
  background:linear-gradient(135deg, rgba(0,240,181,0.08), rgba(212,168,75,0.08));
  border:1px solid rgba(0,240,181,0.1);
  position:relative;
  overflow:hidden;
}

.cta-banner::before {
  content:'';
  position:absolute;
  top:-50%;
  left:-50%;
  width:200%;
  height:200%;
  background:radial-gradient(circle, rgba(0,240,181,0.03), transparent 60%);
  animation:ctaPulse 8s ease-in-out infinite;
}

@keyframes ctaPulse {
  0%, 100% { transform:translate(0,0); }
  50% { transform:translate(10%,10%); }
}

.cta-banner h2 { 
  color:var(--text-primary); 
  font-size:2rem;
  position:relative;
  z-index:1;
}

.cta-banner .btn-primary { 
  background:linear-gradient(135deg, var(--neon), #00c9a7); 
  color:#0a0a0f;
  position:relative;
  z-index:1;
}

/* 页脚 */
.site-footer { 
  padding:64px 0 32px; 
  border-top:1px solid rgba(255,255,255,0.04);
}

.footer-grid { 
  display:grid; 
  grid-template-columns:2fr 1fr 1fr 1fr; 
  gap:48px; 
}

.footer-brand { 
  font-size:0.9rem; 
  line-height:1.8;
  color:var(--text-secondary);
}

.footer-col { }

.footer-col h4 {
  font-size:0.8rem;
  text-transform:uppercase;
  letter-spacing:2px;
  margin-bottom:16px;
  color:var(--text-primary);
  font-weight:700;
}

.footer-col a {
  display:block;
  color:var(--text-secondary);
  text-decoration:none;
  padding:6px 0;
  font-size:0.85rem;
  transition:0.3s;
}

.footer-col a:hover {
  color:var(--neon);
  padding-left:4px;
}

.footer-bottom { 
  border-top:1px solid rgba(255,255,255,0.04); 
  margin-top:48px; 
  padding-top:24px; 
  text-align:center; 
  font-size:0.8rem; 
  color:var(--text-secondary);
}

/* 工具类 */
.text-accent { 
  color:var(--neon); 
}

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

.seo-description { 
  max-width:600px; 
  margin:0 auto 48px; 
  opacity:0.6; 
  line-height:1.7;
  color:var(--text-secondary);
}

.mt-0 { 
  margin-top:0; 
}

.mb-0 { 
  margin-bottom:0; 
}

/* 响应式 */
@media (max-width: 1024px) {
  .hero h1 { font-size:2.8rem; }
  .section-title { font-size:2rem; }
}

@media (max-width: 768px) {
  .feature-block { grid-template-columns:1fr; gap:40px; }
  .stats-bar { grid-template-columns:repeat(2,1fr); }
  .footer-grid { grid-template-columns:1fr 1fr; gap:32px; }
  .main-nav { display:none; }
  .menu-toggle { display:flex; }
  .main-nav.open { 
    display:flex; 
    flex-direction:column; 
    position:absolute; 
    top:72px; 
    left:0; 
    width:100%; 
    background:rgba(10,10,15,0.98); 
    padding:24px; 
    gap:20px;
    backdrop-filter:blur(20px);
    border-bottom:1px solid rgba(0,240,181,0.1);
  }
  .main-nav.open a { font-size:1rem; padding:8px 0; }
  .hero h1 { font-size:2.2rem; }
  .hero { min-height:70vh; }
  .section-title { font-size:1.8rem; }
}

@media (max-width: 480px) {
  .cards-grid, .content-wall, .stats-bar { grid-template-columns:1fr; }
  .footer-grid { grid-template-columns:1fr; }
  .hero-buttons { flex-direction:column; }
  .hero h1 { font-size:1.8rem; }
  .section-title { font-size:1.5rem; }
  .hero-eyebrow { font-size:0.65rem; }
  .stat-number { font-size:2rem; }
  .btn { padding:12px 24px; font-size:0.85rem; width:100%; justify-content:center; }
}