/* 爱搜索 · 科技风站点样式 */
:root{
  --primary:#111827;
  --accent:#2f7cf6;
  --cyan:#06b6d4;
  --bg:#0b1020;
  --bg2:#0e1526;
  --card:rgba(255,255,255,.04);
  --line:rgba(255,255,255,.08);
  --text:#e6ebf5;
  --muted:#c9d1e0;
  --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  background:var(--bg);color:var(--text);font-size:16px;line-height:1.7;
  background-image:linear-gradient(rgba(255,255,255,.025) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.025) 1px,transparent 1px);
  background-size:48px 48px;
}
a{color:var(--accent);text-decoration:none}
a:hover{color:var(--cyan)}
img{max-width:100%;display:block}
.container{max-width:1180px;margin:0 auto;padding:0 24px}
.narrow{max-width:760px}

/* 顶栏 */
.site-header{position:fixed;top:0;left:0;right:0;z-index:100;transition:background .3s,border-color .3s;border-bottom:1px solid transparent}
.site-header.scrolled{background:rgba(11,16,32,.8);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom-color:var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;height:68px}
.brand{display:flex;align-items:center;gap:10px;color:var(--text);font-weight:700;font-size:18px}
.brand img{width:34px;height:34px;border-radius:8px}
.brand:hover{color:var(--text)}
.nav-links{display:flex;gap:28px;list-style:none;align-items:center}
.nav-links a{color:var(--muted);font-size:15px;position:relative}
.nav-links a:hover,.nav-links a.active{color:#fff}
.nav-links a.active::after{content:"";position:absolute;left:0;right:0;bottom:-6px;height:2px;background:linear-gradient(90deg,var(--accent),var(--cyan));border-radius:2px}
.nav-cta{margin-left:8px}
.nav-toggle{display:none;background:none;border:1px solid var(--line);border-radius:8px;color:var(--text);width:42px;height:38px;font-size:18px;cursor:pointer}
@media (max-width:860px){
  .nav-toggle{display:block}
  .nav-links{position:fixed;top:68px;left:0;right:0;background:rgba(11,16,32,.96);backdrop-filter:blur(12px);flex-direction:column;padding:20px;gap:18px;border-bottom:1px solid var(--line);display:none}
  .nav-links.open{display:flex}
}

/* 按钮 */
.btn{display:inline-block;padding:12px 26px;border-radius:8px;font-size:15px;font-weight:600;cursor:pointer;border:1px solid transparent;transition:.2s;font-family:inherit}
.btn-primary{background:linear-gradient(135deg,var(--accent),var(--cyan));color:#fff;box-shadow:0 6px 24px rgba(47,124,246,.35)}
.btn-primary:hover{color:#fff;transform:translateY(-1px);box-shadow:0 10px 30px rgba(47,124,246,.5)}
.btn-ghost{background:transparent;color:var(--muted);border-color:var(--line)}
.btn-ghost:hover{color:#fff;border-color:var(--accent)}
.btn:disabled{opacity:.6;cursor:not-allowed;transform:none}

/* 首屏 */
.hero{position:relative;padding:170px 0 100px;overflow:hidden}
.hero::before{content:"";position:absolute;top:-160px;left:50%;transform:translateX(-50%);width:900px;height:600px;background:radial-gradient(closest-side,rgba(47,124,246,.28),transparent);pointer-events:none;animation:glow 12s ease-in-out infinite alternate}
@keyframes glow{from{transform:translateX(-56%) scale(1)}to{transform:translateX(-44%) scale(1.12)}}
.hero .container{position:relative;display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
@media (max-width:900px){.hero .container{grid-template-columns:1fr}}
.kicker{font-family:var(--mono);font-size:12px;letter-spacing:.18em;color:var(--accent);text-transform:uppercase;margin-bottom:18px}
.hero h1{font-size:clamp(34px,5vw,56px);line-height:1.2;font-weight:700;margin-bottom:22px}
.hero h1 .grad{background:linear-gradient(90deg,var(--accent),var(--cyan));-webkit-background-clip:text;background-clip:text;color:transparent}
.hero p.lead{color:var(--muted);font-size:17px;margin-bottom:32px;max-width:560px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap}
.hero-figure{position:relative}
.hero-figure img{border-radius:16px;border:1px solid var(--line);box-shadow:0 30px 80px rgba(0,0,0,.5)}
.hero-badges{display:flex;gap:10px;flex-wrap:wrap;margin-top:34px}
.tag{font-family:var(--mono);font-size:12px;color:var(--muted);border:1px solid var(--line);border-radius:999px;padding:5px 14px}

/* 区块 */
.section{padding:90px 0}
.section.alt{background:var(--bg2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{margin-bottom:48px;max-width:720px}
.section-head h2{font-size:clamp(26px,3.4vw,38px);font-weight:700;margin-bottom:12px}
.section-head .muted{color:var(--muted)}
.center{text-align:center;margin-left:auto;margin-right:auto}

/* 卡片网格 */
.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)}
@media (max-width:980px){.grid-3,.grid-4{grid-template-columns:repeat(2,1fr)}}
@media (max-width:600px){.grid-2,.grid-3,.grid-4{grid-template-columns:1fr}}
.card{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:26px;transition:.25s}
.card:hover{border-color:var(--accent);box-shadow:0 0 0 1px rgba(47,124,246,.35),0 12px 34px rgba(0,0,0,.35)}
.card h3{font-size:18px;margin-bottom:10px}
.card p{color:var(--muted);font-size:14.5px}
.card .icon{width:44px;height:44px;border-radius:10px;display:flex;align-items:center;justify-content:center;background:rgba(47,124,246,.12);margin-bottom:16px}
.card .icon svg{width:22px;height:22px;stroke:var(--accent);fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.card-media{border-radius:10px;overflow:hidden;margin:-26px -26px 18px;border-bottom:1px solid var(--line)}
.card-media img{width:100%;height:180px;object-fit:cover;transition:transform .4s}
.card:hover .card-media img{transform:scale(1.04)}
.card-body time{font-family:var(--mono);font-size:12px;color:var(--cyan)}
.card-body h3{margin:6px 0 8px}
.news-card a{color:inherit;display:block}
.news-card a:hover h3{color:var(--accent)}

/* 数字亮点 */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;text-align:center}
@media (max-width:860px){.stats{grid-template-columns:repeat(2,1fr)}}
.stat .num{font-family:var(--mono);font-size:clamp(32px,4.4vw,46px);font-weight:700;background:linear-gradient(90deg,var(--accent),var(--cyan));-webkit-background-clip:text;background-clip:text;color:transparent}
.stat .lbl{color:var(--muted);font-size:14px;margin-top:6px}

/* 步骤 */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:0;counter-reset:step}
@media (max-width:860px){.steps{grid-template-columns:repeat(2,1fr);gap:22px}}
@media (max-width:520px){.steps{grid-template-columns:1fr}}
.step{position:relative;padding:0 22px}
.step::before{counter-increment:step;content:"0" counter(step);font-family:var(--mono);font-size:14px;color:var(--cyan);display:block;margin-bottom:10px}
.step h3{font-size:17px;margin-bottom:8px}
.step p{color:var(--muted);font-size:14px}
@media (min-width:861px){
  .step:not(:last-child)::after{content:"";position:absolute;top:6px;left:calc(100% - 20px);width:40px;height:1px;background:linear-gradient(90deg,var(--accent),transparent)}
}

/* 媒体列表 */
.media-list{display:grid;grid-template-columns:repeat(2,1fr);gap:26px}
@media (max-width:800px){.media-list{grid-template-columns:1fr}}
.media-item{display:grid;grid-template-columns:180px 1fr;gap:20px;background:var(--card);border:1px solid var(--line);border-radius:12px;overflow:hidden;transition:.25s}
.media-item:hover{border-color:var(--accent)}
.media-item img{width:100%;height:100%;object-fit:cover;min-height:150px}
.media-item .mi-body{padding:20px 20px 20px 0}
.media-item h3{font-size:17px;margin-bottom:8px}
.media-item p{color:var(--muted);font-size:14px}
@media (max-width:480px){.media-item{grid-template-columns:1fr}.media-item .mi-body{padding:0 20px 20px}.media-item img{height:160px}}

/* 表格风清单 */
.spec-list{list-style:none;border:1px solid var(--line);border-radius:12px;overflow:hidden}
.spec-list li{display:flex;gap:16px;padding:15px 22px;border-bottom:1px solid var(--line);font-size:15px;align-items:baseline}
.spec-list li:last-child{border-bottom:none}
.spec-list .k{font-family:var(--mono);font-size:12px;color:var(--cyan);min-width:88px;flex:none}
.spec-list li:nth-child(odd){background:rgba(255,255,255,.02)}

/* 表单 */
.form{display:grid;gap:18px}
.form label{display:grid;gap:8px;font-size:14px;color:var(--muted)}
.form input,.form textarea{background:rgba(255,255,255,.05);border:1px solid var(--line);border-radius:8px;color:var(--text);padding:12px 14px;font-size:15px;font-family:inherit;transition:border-color .2s}
.form input:focus,.form textarea:focus{outline:none;border-color:var(--accent)}
.form-msg{font-size:14px;color:var(--cyan);min-height:20px}

/* CTA */
.cta-band{background:linear-gradient(135deg,rgba(47,124,246,.16),rgba(6,182,212,.12));border:1px solid var(--line);border-radius:16px;padding:56px 40px;text-align:center}
.cta-band h2{font-size:clamp(24px,3vw,34px);margin-bottom:14px}
.cta-band p{color:var(--muted);margin-bottom:28px}

/* 联系信息 */
.contact-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-bottom:56px}
@media (max-width:800px){.contact-cards{grid-template-columns:1fr}}
.contact-card .val{font-family:var(--mono);font-size:18px;color:#fff;margin-top:4px;word-break:break-all}

/* 页脚 */
.site-footer{background:#070c18;border-top:1px solid var(--line);padding:60px 0 30px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:40px;margin-bottom:40px}
@media (max-width:800px){.footer-grid{grid-template-columns:1fr}}
.footer-grid h4{font-size:14px;color:#fff;margin-bottom:14px}
.footer-grid ul{list-style:none;display:grid;gap:8px;font-size:14px}
.footer-brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:18px;margin-bottom:14px}
.footer-brand img{width:34px;height:34px;border-radius:8px}
.footer-grid p,.footer-grid a{color:var(--muted);font-size:14px}
.copyright{border-top:1px solid var(--line);padding-top:24px;color:#8b94a8;font-size:13px;text-align:center}

/* 页面头 */
.page-hero{padding:150px 0 70px;position:relative;overflow:hidden}
.page-hero::before{content:"";position:absolute;top:-140px;right:-120px;width:640px;height:480px;background:radial-gradient(closest-side,rgba(6,182,212,.18),transparent);pointer-events:none}
.page-hero h1{font-size:clamp(30px,4.4vw,48px);font-weight:700;margin-bottom:14px}
.page-hero p{color:var(--muted);max-width:680px}
.muted{color:var(--muted)}