/* ============================================================
   安熵家官网 V2.0 - 技术与健康页面样式
   视觉：延续全局 Apple 风格（白/浅灰/深灰/黑 + 青蓝强调）
   ============================================================ */
.th{padding-top:var(--header-h)}

/* ---------- 01 Hero ---------- */
.th-hero{position:relative;padding:76px 0 96px;overflow:hidden;background:var(--bg)}
.th-hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(720px 480px at 82% 30%,rgba(2,187,93,.10),transparent 62%),
             radial-gradient(520px 380px at 6% 90%,rgba(2,187,93,.08),transparent 60%);
}
.th-hero-inner{position:relative;display:grid;grid-template-columns:1.05fr .95fr;gap:64px;align-items:center}
.th-hero h1{font-size:clamp(38px,4.8vw,60px);font-weight:800;line-height:1.14;letter-spacing:1px;color:var(--text)}
.th-hero-text p{font-size:17px;color:var(--text-2);max-width:540px;margin:24px 0 36px}
.th-hero-visual{display:flex;justify-content:center;align-items:center}
.th-hero-visual img{
  width:min(420px,100%);border-radius:28px;object-fit:cover;
  box-shadow:var(--shadow-lg);animation:heroFloat 6s ease-in-out infinite;
}

/* ---------- 02 六大核心健康监测 ---------- */
.th-health{background:var(--bg-soft)}
.th-health-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.th-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:32px 28px;transition:transform .3s ease,box-shadow .3s ease,border-color .3s ease;
}
.th-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-md);border-color:transparent}
.th-card-ic{
  width:52px;height:52px;border-radius:14px;background:var(--accent-soft);
  color:var(--accent);display:flex;align-items:center;justify-content:center;margin-bottom:18px;
}
.th-card-ic svg{width:26px;height:26px}
.th-card h3{font-size:18px;font-weight:700;color:var(--text);margin-bottom:8px}
.th-card p{font-size:14px;color:var(--text-2);line-height:1.7}

/* ---------- 03 更多健康能力 ---------- */
.th-more{background:var(--bg)}
.th-more-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.th-more-item{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  background:#fff;border:1px solid var(--line);border-radius:14px;
  padding:16px 20px;transition:border-color .25s,color .25s,transform .25s,background .25s;
}
.th-more-item:hover{border-color:rgba(2,187,93,.42);background:var(--accent-soft);transform:translateY(-3px)}
.th-more-item b{font-size:14.5px;font-weight:700;color:var(--text);white-space:nowrap}
.th-more-item span{font-size:12.5px;color:var(--text-3);text-align:right;white-space:nowrap}
.th-more-link{text-align:center;margin-top:44px}

/* ---------- 04 技术链路 ---------- */
.th-tech{background:var(--bg-soft)}
.th-flow{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:16px}
.th-step{
  position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:30px 26px;overflow:hidden;transition:transform .3s ease,box-shadow .3s ease;
}
.th-step:hover{transform:translateY(-6px);box-shadow:var(--shadow-md)}
.th-step-num{
  position:absolute;top:14px;right:20px;font-family:var(--font-en);
  font-size:40px;font-weight:800;color:var(--line);line-height:1;letter-spacing:1px;
}
.th-step-ic{
  width:50px;height:50px;border-radius:50%;background:var(--accent-soft);
  color:var(--accent);display:flex;align-items:center;justify-content:center;margin-bottom:16px;
}
.th-step-ic svg{width:24px;height:24px}
.th-step h3{font-size:17px;font-weight:700;color:var(--text);margin-bottom:6px}
.th-step p{font-size:13.5px;color:var(--text-2);line-height:1.7}

/* ---------- 05 APP 体验 ---------- */
.th-app{background:var(--bg)}

/* ---------- 06 健康数据说明 ---------- */
.th-note{background:var(--bg-soft)}
.th-note-box{
  display:flex;align-items:flex-start;gap:18px;max-width:860px;margin:0 auto;
  background:#fff;border:1px solid var(--line);border-left:3px solid var(--accent);
  border-radius:var(--radius);padding:30px 32px;
}
.th-note-ic{
  width:46px;height:46px;flex:0 0 46px;border-radius:13px;background:var(--accent-soft);
  color:var(--accent);display:flex;align-items:center;justify-content:center;
}
.th-note-ic svg{width:23px;height:23px}
.th-note-box h3{font-size:17.5px;font-weight:700;color:var(--text);margin-bottom:6px}
.th-note-box p{font-size:14px;color:var(--text-2);line-height:1.8}

/* ---------- 07 CTA ---------- */
.th-cta{background:var(--bg-green-grad);color:#fff;padding:88px 0;position:relative;overflow:hidden}
.th-cta::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(560px 400px at 15% 20%,rgba(2,187,93,.24),transparent 60%);
}
.th-cta-inner{position:relative;text-align:center}
.th-cta-inner h2{font-size:clamp(26px,3.4vw,38px);font-weight:800;margin-bottom:10px}
.th-cta-inner p{color:rgba(255,255,255,.62);font-size:15.5px;margin-bottom:30px}
.th-cta-inner .pd-actions{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .th-hero-inner{grid-template-columns:1fr;gap:52px;text-align:center}
  .th-hero-text p{margin-left:auto;margin-right:auto}
  .th-hero-btns,.th-hero .hero-btns{justify-content:center}
  .th-hero-visual{order:-1}
  .th-hero-visual img{width:min(340px,86%)}
  .th-health-grid{grid-template-columns:repeat(2,1fr)}
  .th-more-grid{grid-template-columns:repeat(3,1fr)}
  .th-flow{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:768px){
  .th-hero{padding:40px 0 64px}
  .th-health-grid{grid-template-columns:1fr}
  .th-more-grid{grid-template-columns:repeat(2,1fr)}
  .th-flow{grid-template-columns:1fr}
  .th-note-box{flex-direction:column;padding:26px 24px}
  .th-cta{padding:64px 0}
}
@media (max-width:430px){
  .th-more-grid{grid-template-columns:1fr}
  .th-more-item{justify-content:space-between}
  .th-cta-inner .pd-actions{flex-direction:column}
  .th-cta-inner .pd-actions .btn{width:100%}
  .th-hero h1{font-size:30px}
  .th-hero-text p{font-size:14px}
  .th-health-card{padding:22px 18px}
  .th-health-card h4{font-size:15px}
  .th-health-card p{font-size:12.5px}
  .th-flow-item{padding:20px 16px}
  .th-flow-ic{width:44px;height:44px}
  .th-flow-ic svg{width:22px;height:22px}
  .th-flow-item h4{font-size:14px}
  .th-flow-item p{font-size:12px}
  .th-more-item{padding:14px 16px}
  .th-more-item b{font-size:14px}
  .th-more-item span{font-size:11px}
  .th-note-box{padding:20px 16px}
  .th-note-box p{font-size:12.5px}
}