/* SpeedLink 首页专属样式 - 青绿色主题 */
.hero{
  position:relative;padding:148px 0 72px;overflow:hidden;
  background:
    radial-gradient(700px 380px at 75% 15%,rgba(16,185,129,0.16),transparent 60%),
    radial-gradient(500px 280px at 15% 85%,rgba(6,182,212,0.14),transparent 70%);
}
.hero-grid{
  display:grid;grid-template-columns:1.1fr .9fr;gap:52px;align-items:center;
}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:7px;
  padding:5px 13px;border-radius:100px;font-size:12.5px;
  background:var(--bg-card-hover);border:1px solid var(--border-hover);
  color:var(--brand-1);margin-bottom:20px;
}
.hero-eyebrow .dot{
  width:7px;height:7px;border-radius:50%;background:var(--brand-1);
  box-shadow:0 0 0 3px rgba(16,185,129,0.2);animation:pulse 2s ease-in-out infinite;
}
.hero h1{
  font-size:clamp(34px,5.2vw,58px);font-weight:800;color:#fff;
  line-height:1.18;letter-spacing:-.8px;margin-bottom:18px;
}
.hero h1 .grad{
  background:linear-gradient(120deg,#34d399,#22d3ee,#10b981);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-desc{font-size:16px;color:var(--text-secondary);max-width:500px;margin-bottom:32px}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap}

/* Hero 视觉 - 波浪网格 */
.hero-visual{
  position:relative;height:440px;display:grid;place-items:center;
}
.hero-visual::before{
  content:"";position:absolute;inset:0;
  background-image:
    linear-gradient(rgba(16,185,129,0.06) 1px,transparent 1px),
    linear-gradient(90deg,rgba(16,185,129,0.06) 1px,transparent 1px);
  background-size:40px 40px;
  mask-image:radial-gradient(circle at center,black 30%,transparent 70%);
  -webkit-mask-image:radial-gradient(circle at center,black 30%,transparent 70%);
}
.wave-container{position:relative;width:340px;height:340px}
.wave-ring{
  position:absolute;inset:0;border-radius:50%;
  border:1px solid rgba(16,185,129,0.2);
}
.wave-ring:nth-child(1){animation:ringPulse 3.5s ease-in-out infinite}
.wave-ring:nth-child(2){inset:30px;border-color:rgba(6,182,212,0.18);animation:ringPulse 3.5s ease-in-out infinite .5s}
.wave-ring:nth-child(3){inset:60px;border-color:rgba(16,185,129,0.14);animation:ringPulse 3.5s ease-in-out infinite 1s}
@keyframes ringPulse{0%,100%{transform:scale(1);opacity:1}50%{transform:scale(1.05);opacity:.5}}
.wave-core{
  position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);
  width:160px;height:160px;border-radius:50%;
  background:radial-gradient(circle at 30% 30%,#34d399,#06b6d4 55%,#083344);
  display:grid;place-items:center;box-shadow:0 24px 70px rgba(16,185,129,0.45);
  animation:float 4.5s ease-in-out infinite;
}
.wave-core svg{width:64px;height:64px;color:#fff}
.orbit-node{
  position:absolute;width:12px;height:12px;border-radius:50%;
  background:var(--brand-1);box-shadow:0 0 16px var(--brand-1);
}
.orbit-node.n1{top:15%;left:50%;transform:translateX(-50%)}
.orbit-node.n2{bottom:22%;right:15%}
.orbit-node.n3{bottom:15%;left:18%}
.float-card{
  position:absolute;width:48px;height:48px;border-radius:12px;
  background:rgba(15,23,20,0.9);border:1px solid var(--border-hover);
  display:grid;place-items:center;backdrop-filter:blur(8px);
  box-shadow:0 8px 24px rgba(0,0,0,0.35);
}
.float-card svg{width:22px;height:22px;color:var(--brand-1)}
.fc1{top:6%;right:4%;animation:float 5s ease-in-out infinite}
.fc2{bottom:4%;left:4%;animation:float 6s ease-in-out infinite 1s}

/* 数据条 */
.stats-bar{
  background:var(--bg-secondary);border-top:1px solid var(--border);border-bottom:1px solid var(--border);
  padding:36px 0;
}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;text-align:center}
.stat-item .num{
  font-size:32px;font-weight:700;color:#fff;
  background:var(--gradient);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.stat-item .lbl{font-size:13px;color:var(--text-tertiary);margin-top:4px}

/* 核心特性 - 横向布局 */
.feature-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.feature-card{
  display:flex;gap:18px;align-items:flex-start;
  background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);
  padding:28px 24px;transition:all .35s ease;
}
.feature-card:hover{
  border-color:var(--border-hover);transform:translateY(-4px);box-shadow:var(--shadow);
}
.feature-icon{
  flex:none;width:52px;height:52px;border-radius:13px;
  background:linear-gradient(135deg,rgba(16,185,129,0.16),rgba(6,182,212,0.1));
  border:1px solid var(--border-hover);display:grid;place-items:center;
}
.feature-icon svg{width:24px;height:24px;color:var(--brand-1)}
.feature-body h3{font-size:17.5px;font-weight:600;color:#fff;margin-bottom:8px}
.feature-body p{font-size:14px;color:var(--text-tertiary);line-height:1.7}

/* 使用场景 */
.scenario-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.scenario-card{
  background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);
  padding:24px 20px;text-align:center;transition:all .35s ease;
}
.scenario-card:hover{border-color:var(--border-hover);transform:translateY(-3px);background:var(--bg-card-hover)}
.scenario-icon{
  width:48px;height:48px;margin:0 auto 14px;border-radius:12px;
  background:linear-gradient(135deg,rgba(16,185,129,0.14),rgba(6,182,212,0.08));
  border:1px solid var(--border-hover);display:grid;place-items:center;
}
.scenario-icon svg{width:24px;height:24px;color:var(--brand-1)}
.scenario-card h4{font-size:15px;font-weight:600;color:#fff;margin-bottom:6px}
.scenario-card p{font-size:12.5px;color:var(--text-tertiary)}

/* 平台 */
.platform-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:16px}
.platform-card{
  background:var(--bg-card);border:1px solid var(--border);
  border-radius:var(--radius);padding:24px 14px;text-align:center;
  transition:all .35s ease;cursor:pointer;
}
.platform-card:hover{
  border-color:var(--border-hover);background:var(--bg-card-hover);
  transform:translateY(-3px);box-shadow:var(--shadow);
}
.platform-icon{
  width:50px;height:50px;margin:0 auto 12px;border-radius:12px;
  display:grid;place-items:center;color:var(--brand-1);
  background:linear-gradient(135deg,rgba(16,185,129,0.12),rgba(6,182,212,0.06));
  border:1px solid var(--border-hover);
}
.platform-icon svg{width:26px;height:26px}
.platform-card .name{font-size:14px;font-weight:600;color:#fff;margin-bottom:3px}
.platform-card .meta{font-size:11.5px;color:var(--text-tertiary)}

/* 安全 */
.security{
  background:
    radial-gradient(700px 360px at 25% 25%,rgba(16,185,129,0.09),transparent 60%),
    linear-gradient(180deg,var(--bg-primary) 0%,var(--bg-secondary) 100%);
}
.security-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.security-card{
  background:linear-gradient(180deg,rgba(255,255,255,0.035),rgba(255,255,255,0.01));
  border:1px solid var(--border);border-radius:var(--radius-lg);
  padding:32px 26px;transition:all .35s ease;
}
.security-card:hover{border-color:var(--border-hover);transform:translateY(-3px);box-shadow:var(--shadow)}
.security-badge{
  display:inline-flex;align-items:center;gap:5px;padding:4px 11px;
  border-radius:100px;font-size:11px;background:rgba(16,185,129,0.1);
  color:var(--brand-1);border:1px solid var(--border-hover);margin-bottom:16px;
}
.security-card h3{font-size:20px;font-weight:600;color:#fff;margin-bottom:9px}
.security-card p{color:var(--text-tertiary);font-size:13.5px;margin-bottom:18px}
.security-list{display:flex;flex-direction:column;gap:9px}
.security-list li{display:flex;align-items:flex-start;gap:9px;font-size:13px;color:var(--text-secondary)}
.security-list svg{width:16px;height:16px;color:var(--brand-1);flex:none;margin-top:2px}

/* 评价 */
.testimonial-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.testimonial-card{
  background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);
  padding:28px;transition:all .35s ease;position:relative;
}
.testimonial-card:hover{border-color:var(--border-hover);transform:translateY(-3px);box-shadow:var(--shadow)}
.quote-mark{
  position:absolute;top:14px;right:20px;font-size:48px;color:rgba(16,185,129,0.15);
  font-family:Georgia,serif;line-height:1;
}
.stars{display:flex;gap:2px;margin-bottom:12px;color:#fbbf24}
.stars svg{width:15px;height:15px;fill:currentColor}
.testimonial-text{color:var(--text-secondary);font-size:13.5px;line-height:1.8;margin-bottom:22px}
.testimonial-user{display:flex;align-items:center;gap:12px;border-top:1px solid var(--border);padding-top:16px}
.avatar{
  width:42px;height:42px;border-radius:50%;
  background:var(--gradient);display:grid;place-items:center;color:#fff;
  font-weight:600;font-size:15px;
}
.user-info .name{font-size:13.5px;color:#fff;font-weight:600}
.user-info .role{font-size:11.5px;color:var(--text-tertiary);margin-top:1px}

/* FAQ */
.faq-wrap{max-width:820px;margin:0 auto;display:flex;flex-direction:column;gap:12px}
.faq-item{
  background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);
  overflow:hidden;transition:all .3s;
}
.faq-item.open{border-color:var(--border-hover);box-shadow:var(--shadow)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;
  padding:20px 24px;text-align:left;color:#fff;font-size:15px;font-weight:600;gap:16px;
}
.faq-q:hover{background:var(--bg-card-hover)}
.faq-icon{
  width:30px;height:30px;border-radius:9px;background:var(--bg-card);
  border:1px solid var(--border);display:grid;place-items:center;flex:none;
  transition:all .3s;color:var(--brand-1);
}
.faq-item.open .faq-icon{background:var(--gradient);color:#fff;border-color:transparent;transform:rotate(45deg)}
.faq-icon svg{width:15px;height:15px}
.faq-a{max-height:0;overflow:hidden;transition:max-height .4s ease}
.faq-item.open .faq-a{max-height:560px}
.faq-a-inner{padding:0 24px 22px;color:var(--text-secondary);font-size:14px;line-height:1.9}
.faq-steps{display:flex;flex-direction:column;gap:9px}
.faq-step{
  display:flex;gap:12px;align-items:flex-start;
  padding:10px 12px;border-radius:9px;background:rgba(16,185,129,0.04);
  border-left:2px solid var(--brand-1);
}
.step-tag{
  flex:none;display:inline-block;padding:2px 9px;border-radius:100px;font-size:11px;
  background:var(--gradient);color:#fff;font-weight:600;white-space:nowrap;
}
.step-text{flex:1;color:var(--text-secondary);font-size:13.5px}

/* 底部CTA */
.cta-section{
  background:linear-gradient(135deg,rgba(16,185,129,0.1),rgba(6,182,212,0.06));
  border-top:1px solid var(--border);border-bottom:1px solid var(--border);
  padding:72px 0;text-align:center;
}
.cta-section h2{font-size:clamp(24px,3.5vw,36px);font-weight:700;color:#fff;margin-bottom:12px}
.cta-section p{color:var(--text-tertiary);font-size:15px;margin-bottom:28px;max-width:520px;margin-left:auto;margin-right:auto}

@media (max-width:1024px){
  .hero-grid{grid-template-columns:1fr;gap:36px;text-align:left}
  .hero-visual{height:360px}
  .feature-grid,.security-grid,.testimonial-grid{grid-template-columns:1fr}
  .scenario-grid{grid-template-columns:repeat(2,1fr)}
  .platform-grid{grid-template-columns:repeat(3,1fr)}
  .stats-grid{grid-template-columns:repeat(2,1fr);gap:20px}
}
@media (max-width:768px){
  .hero{padding:112px 0 52px}
  .hero-visual{height:300px}
  .wave-container{width:260px;height:260px}
  .wave-core{width:120px;height:120px}
  .feature-grid,.security-grid,.testimonial-grid{grid-template-columns:1fr}
  .platform-grid{grid-template-columns:repeat(2,1fr)}
  .scenario-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:480px){
  .platform-grid{grid-template-columns:repeat(2,1fr)}
  .hero-actions .btn{flex:1;justify-content:center}
  .stats-grid{grid-template-columns:1fr 1fr}
}