/* ============ 爱搜索 · Tech Azure 主题 ============ */
:root{
  --primary:#0EA5E9;
  --primary-2:#38BDF8;
  --primary-deep:#0284C7;
  --bg:#0B1220;
  --bg-soft:#0E1729;
  --panel:rgba(255,255,255,.04);
  --line:rgba(255,255,255,.09);
  --line-strong:rgba(255,255,255,.16);
  --text:#E2E8F0;
  --text-dim:#c9d1e0;
  --muted:#8b96ab;
  --radius:12px;
  --font:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
  --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:var(--font);background:var(--bg);color:var(--text);
  font-size:16px;line-height:1.7;-webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
ul{list-style:none}

.container{width:min(1180px,92%);margin:0 auto}
.container.narrow{width:min(760px,92%)}
.section{padding:88px 0}
.section-head{margin-bottom:44px;max-width:640px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.section-head h2{font-size:32px;font-weight:700;line-height:1.3;letter-spacing:.01em}
.eyebrow{
  font-family:var(--mono);font-size:12px;letter-spacing:.22em;text-transform:uppercase;
  color:var(--primary);margin-bottom:12px;display:inline-block;
}
.muted{color:var(--muted)}

/* ---------- 网格背景 + 光晕 ---------- */
.grid-bg{position:relative}
.grid-bg::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:
    linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);
  background-size:48px 48px;
  mask-image:radial-gradient(ellipse 80% 70% at 50% 30%,#000 30%,transparent 75%);
  -webkit-mask-image:radial-gradient(ellipse 80% 70% at 50% 30%,#000 30%,transparent 75%);
}
.glow{
  position:absolute;border-radius:50%;filter:blur(90px);pointer-events:none;
  background:radial-gradient(circle,rgba(14,165,233,.28),transparent 70%);
  animation:drift 12s ease-in-out infinite alternate;
}
.glow.g1{width:560px;height:560px;top:-180px;right:-120px}
.glow.g2{width:420px;height:420px;bottom:-160px;left:-140px;animation-delay:-6s}
@keyframes drift{from{transform:translate(0,0)}to{transform:translate(40px,28px)}}
@media (prefers-reduced-motion:reduce){
  .glow{animation:none}
  html{scroll-behavior:auto}
  *{transition:none!important}
}

/* ---------- 顶栏 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:50;
  background:rgba(11,18,32,.72);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;height:68px;gap:24px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand img{height:38px;width:auto}
.brand-name{font-weight:700;font-size:17px;letter-spacing:.02em}
.brand-name small{display:block;font-size:10.5px;font-weight:400;color:var(--muted);letter-spacing:.14em}
.site-nav{display:flex;align-items:center;gap:28px}
.site-nav > a{font-size:14.5px;color:var(--text-dim);transition:color .2s}
.site-nav > a:hover{color:var(--primary-2)}
.site-nav > a.is-active{color:#fff;position:relative}
.site-nav > a.is-active::after{
  content:"";position:absolute;left:0;right:0;bottom:-8px;height:2px;
  background:var(--primary);border-radius:2px;
}
.nav-toggle{display:none;background:none;border:1px solid var(--line-strong);border-radius:8px;
  color:var(--text);padding:6px 8px;cursor:pointer}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 24px;border-radius:8px;font-size:15px;font-weight:600;
  border:1px solid transparent;cursor:pointer;transition:all .2s;line-height:1.4;
}
.btn-primary{
  background:linear-gradient(135deg,var(--primary),var(--primary-2));
  color:#04121f;
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 8px 26px rgba(14,165,233,.35)}
.btn-ghost{border-color:var(--line-strong);color:var(--text);background:transparent}
.btn-ghost:hover{border-color:var(--primary);color:var(--primary-2)}
.btn-sm{padding:8px 18px;font-size:13.5px}
.btn-lg{padding:14px 32px;font-size:16px}

/* ---------- Hero ---------- */
.hero{position:relative;padding:168px 0 96px;overflow:hidden}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;position:relative}
.hero-copy h1{font-size:clamp(34px,4.6vw,56px);font-weight:700;line-height:1.22;letter-spacing:.01em}
.hero-copy h1 em{font-style:normal;background:linear-gradient(120deg,var(--primary),var(--primary-2));-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-copy .lead{margin:22px 0 32px;font-size:17px;color:var(--text-dim);max-width:34em}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap}
.hero-media{position:relative;border-radius:16px;overflow:hidden;border:1px solid var(--line);
  box-shadow:0 30px 80px rgba(2,10,26,.6)}
.hero-media img{width:100%;height:auto}
.hero-tags{display:flex;gap:10px;flex-wrap:wrap;margin-top:34px}

/* ---------- 胶囊标签 ---------- */
.tags{display:flex;flex-wrap:wrap;gap:8px}
.tags li,.pill{
  font-family:var(--mono);font-size:12px;color:var(--primary-2);
  border:1px solid rgba(14,165,233,.4);border-radius:999px;padding:3px 12px;letter-spacing:.05em;
}

/* ---------- 卡片 ---------- */
.grid{display:grid;gap:22px}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}
.card{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;transition:border-color .2s,transform .2s,box-shadow .2s;
  display:flex;flex-direction:column;
}
.card:hover{border-color:rgba(14,165,233,.55);transform:translateY(-2px);box-shadow:0 12px 34px rgba(2,10,26,.45)}
.card-media{aspect-ratio:16/10;overflow:hidden;background:var(--bg-soft)}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s}
.card:hover .card-media img{transform:scale(1.04)}
.card-body{padding:20px 22px 24px}
.card-body h3{font-size:17.5px;font-weight:600;margin-bottom:8px}
.card-body p{font-size:14px;color:var(--text-dim)}
.card-body .tags{margin-top:14px}

/* ---------- 优势（feature） ---------- */
.feature{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
  padding:26px 24px;transition:border-color .2s,transform .2s,box-shadow .2s;
}
.feature:hover{border-color:rgba(14,165,233,.55);transform:translateY(-2px);box-shadow:0 10px 30px rgba(2,10,26,.4)}
.feature .icon{
  display:inline-flex;width:46px;height:46px;align-items:center;justify-content:center;
  border:1px solid rgba(14,165,233,.45);border-radius:10px;color:var(--primary);margin-bottom:16px;
  background:rgba(14,165,233,.08);
}
.feature h3{font-size:16.5px;font-weight:600;margin-bottom:8px;line-height:1.5}
.feature p{font-size:14px;color:var(--text-dim)}

/* ---------- 数据带 ---------- */
.stats-band{border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  background:linear-gradient(180deg,rgba(14,165,233,.06),transparent)}
.stat{text-align:center;padding:18px 8px}
.stat-value{
  display:block;font-family:var(--mono);font-size:40px;font-weight:700;color:#fff;line-height:1.1;
}
.stat-value span{font-size:18px;color:var(--primary);margin-left:2px}
.stat-label{font-size:14px;color:var(--muted)}

/* ---------- 流程步骤 ---------- */
.steps{display:grid;grid-template-columns:repeat(5,1fr);gap:0;counter-reset:step;position:relative}
.step{position:relative;padding:0 18px;text-align:center}
.step::before{
  counter-increment:step;content:"0" counter(step);
  font-family:var(--mono);font-size:13px;color:var(--primary);letter-spacing:.1em;display:block;margin-bottom:12px;
}
.step-dot{
  width:12px;height:12px;border-radius:50%;background:var(--primary);margin:0 auto 16px;
  box-shadow:0 0 0 5px rgba(14,165,233,.15);position:relative;
}
.step::after{
  content:"";position:absolute;top:calc(12px + 12px + 16px - 6px);left:calc(50% + 14px);right:calc(-50% + 14px);
  height:1px;background:linear-gradient(90deg,rgba(14,165,233,.5),rgba(14,165,233,.12));
}
.step:last-child::after{display:none}
.step h3{font-size:15.5px;font-weight:600;margin-bottom:6px}
.step p{font-size:13px;color:var(--muted)}

/* ---------- CTA ---------- */
.cta-band{background:linear-gradient(135deg,rgba(14,165,233,.14),rgba(2,132,199,.08));border-top:1px solid var(--line)}
.cta-wrap{display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap}
.cta-wrap h2{font-size:26px;font-weight:700}
.cta-wrap p{color:var(--text-dim);margin-top:6px}
.cta-wrap p a{font-family:var(--mono);color:var(--primary-2)}

/* ---------- 新闻 ---------- */
.news-card time{font-family:var(--mono);font-size:12.5px;color:var(--primary);letter-spacing:.08em}
.news-card h3{font-size:16.5px;line-height:1.5}
.news-card .card-body{display:flex;flex-direction:column;gap:8px}
.news-card .card-body p{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}

/* ---------- 表单 ---------- */
.form{display:grid;gap:18px}
.form label{display:grid;gap:8px;font-size:14px;color:var(--text-dim)}
.form input,.form textarea{
  background:rgba(255,255,255,.05);border:1px solid var(--line-strong);border-radius:8px;
  padding:12px 14px;color:var(--text);font:inherit;font-size:15px;width:100%;
  transition:border-color .2s,box-shadow .2s;
}
.form input:focus,.form textarea:focus{
  outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(14,165,233,.18);
}
.form textarea{resize:vertical}
.form .btn{justify-self:start}
.form-msg{font-size:14px;color:var(--primary-2);min-height:1.4em}

/* ---------- FAQ ---------- */
.faq-item{border:1px solid var(--line);border-radius:var(--radius);background:var(--panel);margin-bottom:12px}
.faq-item summary{
  cursor:pointer;padding:18px 22px;font-weight:600;font-size:15.5px;list-style:none;
  display:flex;justify-content:space-between;align-items:center;gap:12px;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";font-family:var(--mono);color:var(--primary);font-size:18px;flex-shrink:0}
.faq-item[open] summary::after{content:"–"}
.faq-item[open]{border-color:rgba(14,165,233,.4)}
.faq-answer{padding:0 22px 20px;color:var(--text-dim);font-size:14.5px}

/* ---------- 联系信息 ---------- */
.contact-grid{display:grid;grid-template-columns:1fr 1.1fr;gap:56px;align-items:start}
.contact-list{display:grid;gap:16px;margin-top:28px}
.contact-list li{display:flex;gap:14px;align-items:flex-start}
.contact-list .icon{
  width:38px;height:38px;border-radius:9px;border:1px solid rgba(14,165,233,.45);
  color:var(--primary);display:inline-flex;align-items:center;justify-content:center;
  background:rgba(14,165,233,.08);flex-shrink:0;
}
.contact-list strong{display:block;font-size:12px;font-family:var(--mono);letter-spacing:.16em;color:var(--muted);text-transform:uppercase;margin-bottom:2px}
.contact-list a{color:var(--primary-2);font-family:var(--mono)}
.contact-list p{font-size:15px}

/* ---------- 页脚 ---------- */
.site-footer{border-top:1px solid var(--line);background:var(--bg-soft);padding:60px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1.2fr;gap:44px;padding-bottom:44px}
.footer-brand img{height:34px;margin-bottom:16px}
.footer-brand p{font-size:14px;color:var(--muted);max-width:30em}
.site-footer h4{font-size:13px;font-family:var(--mono);letter-spacing:.18em;text-transform:uppercase;color:var(--muted);margin-bottom:16px}
.footer-links{display:grid;gap:10px}
.footer-links a{font-size:14.5px;color:var(--text-dim);transition:color .2s}
.footer-links a:hover{color:var(--primary-2)}
.footer-contact{font-style:normal;display:grid;gap:10px;font-size:14.5px;color:var(--text-dim)}
.footer-contact a{color:var(--primary-2);font-family:var(--mono)}
.footer-bottom{
  border-top:1px solid var(--line);padding:20px 0;display:flex;justify-content:space-between;
  gap:12px;flex-wrap:wrap;font-size:13px;color:var(--muted);
}

/* ---------- 关于页 ---------- */
.about-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:56px;align-items:center}
.about-media{border-radius:16px;overflow:hidden;border:1px solid var(--line);box-shadow:0 24px 60px rgba(2,10,26,.5)}
.softgoods .card-body{padding:18px 22px}
.softgoods h3{font-size:15px;font-weight:500}

/* ---------- 页内小标题条 ---------- */
.page-hero{position:relative;padding:150px 0 64px;overflow:hidden;border-bottom:1px solid var(--line)}
.page-hero h1{font-size:clamp(30px,3.6vw,44px);font-weight:700}
.page-hero .lead{margin-top:14px;color:var(--text-dim);max-width:40em}

/* ---------- 响应式 ---------- */
@media (max-width:960px){
  .grid-3,.grid-4{grid-template-columns:repeat(2,1fr)}
  .hero-grid,.contact-grid{grid-template-columns:1fr}
  .hero{padding-top:130px}
  .steps{grid-template-columns:1fr;gap:26px}
  .step::after{display:none}
  .step{text-align:left;display:grid;grid-template-columns:auto 1fr;gap:0 16px}
  .step::before{grid-column:1}
  .step-dot{grid-column:1;grid-row:2;margin:10px 0 0}
  .step h3,.step p{grid-column:2}
  .step h3{grid-row:2;align-self:end}
  .step p{grid-row:3}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:680px){
  .grid-2,.grid-3,.grid-4{grid-template-columns:1fr}
  .section{padding:60px 0}
  .footer-grid{grid-template-columns:1fr}
  .nav-toggle{display:inline-flex}
  .site-nav{
    display:none;position:absolute;top:68px;left:0;right:0;flex-direction:column;align-items:stretch;
    background:rgba(11,18,32,.97);border-bottom:1px solid var(--line);padding:18px 4%;gap:16px;
  }
  .site-nav.is-open{display:flex}
  .site-nav > a.is-active::after{display:none}
}