:root{
  --bg:#f8fafc;
  --bg-2:#eef2f7;
  --white:#ffffff;
  --line:#e2e8f0;
  --text:#0f172a;
  --sub:#64748b;
  --sky:#0ea5e9;
  --sky-dk:#0284c7;
  --orange:#f97316;
  --orange-dk:#ea580c;
  --sky-lt:#e0f2fe;
  --radius:12px;
  --maxw:1240px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  font-size:14px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block;height:auto}
ul,ol{list-style:none}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}

/* TOPBAR */
.topbar{
  background:#0b1220;
  color:#94a3b8;font-size:12px;
}
.topbar .wrap{display:flex;justify-content:space-between;align-items:center;height:38px}
.topbar a{color:#94a3b8}
.topbar a:hover{color:#fff}
.topbar .tb-left{display:flex;gap:16px;align-items:center}
.topbar .tb-left em{font-style:normal;color:var(--sky);font-weight:700}
.topbar .tb-left span{letter-spacing:2px}
.topbar .tb-right{display:flex;gap:20px}

/* HEAD */
.site-head{
  background:var(--white);
  border-bottom:1px solid var(--line);
  position:sticky;top:0;z-index:40;
}
.head-inner{
  display:grid;grid-template-columns:auto 1fr auto;gap:24px;align-items:center;
  padding:18px 24px;
}
.logo{display:flex;align-items:center;gap:12px}
.logo-mark{
  width:52px;height:52px;
  background:linear-gradient(135deg,var(--sky),var(--orange));
  color:#fff;display:flex;align-items:center;justify-content:center;
  font-size:24px;font-weight:800;border-radius:12px;
  box-shadow:0 8px 20px rgba(14,165,233,.28);
}
.logo-txt b{display:block;font-size:20px;font-weight:800;color:var(--text);letter-spacing:1px}
.logo-txt span{display:block;font-size:11px;color:var(--sub);letter-spacing:3px;margin-top:2px}

.head-search{
  display:flex;border:2px solid var(--sky);border-radius:28px;
  overflow:hidden;max-width:500px;background:var(--white);
}
.head-search input{
  flex:1;height:42px;border:none;background:transparent;
  padding:0 18px;font-size:14px;outline:none;color:var(--text);
}
.head-search input::placeholder{color:#94a3b8}
.head-search button{
  width:92px;border:none;background:var(--sky);color:#fff;
  font-size:14px;font-weight:700;cursor:pointer;
  border-radius:24px;margin:3px;
}
.head-search button:hover{background:var(--sky-dk)}

.head-actions{display:flex;gap:10px;align-items:center}
.btn-ghost{
  padding:8px 18px;border-radius:24px;
  border:1px solid var(--line);color:var(--text);
  font-size:13.5px;font-weight:600;
  transition:all .3s;
}
.btn-ghost:hover{border-color:var(--sky);color:var(--sky)}
.btn-solid{
  padding:9px 20px;border-radius:24px;
  background:var(--orange);color:#fff;
  font-size:13.5px;font-weight:700;
  transition:background .3s;
}
.btn-solid:hover{background:var(--orange-dk)}

/* SERVICE BAR */
.service-bar{
  background:var(--white);
  border-bottom:1px solid var(--line);
  padding:10px 0;
}
.sb-inner{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.sb-label{
  font-size:12.5px;color:var(--sub);
  padding-right:12px;
  border-right:1px solid var(--line);
  margin-right:4px;
  letter-spacing:2px;
}
.sb-item{
  padding:5px 14px;
  border-radius:20px;
  font-size:13px;font-weight:600;color:var(--text);
  transition:all .3s;
}
.sb-item:hover{
  background:var(--sky-lt);color:var(--sky-dk);
}

/* HERO */
.hero{
  background:
    radial-gradient(circle at 15% 20%,rgba(14,165,233,.12),transparent 45%),
    radial-gradient(circle at 85% 80%,rgba(249,115,22,.1),transparent 45%),
    var(--bg);
  padding:60px 0;
}
.hero-inner{
  display:grid;grid-template-columns:1.05fr 1fr;gap:50px;align-items:center;
}
.hero-copy .kicker{
  display:inline-block;
  background:var(--sky);color:#fff;
  padding:5px 14px;border-radius:20px;
  font-size:11.5px;font-weight:700;
  letter-spacing:3px;margin-bottom:20px;
}
.hero-copy h1{
  font-size:52px;line-height:1.2;font-weight:800;
  color:var(--text);letter-spacing:1px;
}
.hero-copy h1 em{
  font-style:normal;
  background:linear-gradient(135deg,var(--sky),var(--orange));
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;
}
.hero-copy p{
  font-size:15px;line-height:2;color:var(--sub);
  margin-top:20px;max-width:34em;
}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
.hero-tags span{
  padding:5px 14px;border-radius:20px;
  background:var(--white);
  color:var(--sky-dk);
  border:1px solid var(--sky-lt);
  font-size:12.5px;font-weight:600;
  transition:all .3s;
}
.hero-tags span:hover{
  background:var(--sky);color:#fff;border-color:var(--sky);
  transform:translateY(-2px);
}

.hero-card{
  display:block;position:relative;overflow:hidden;
  aspect-ratio:4/3;border-radius:20px;
  background:var(--sky-lt);
  box-shadow:0 30px 60px rgba(14,165,233,.25);
}
.hero-card img{
  position:absolute;inset:0;width:100%;height:100%;object-fit:cover;
  transition:transform .8s;
}
.hero-card:hover img{transform:scale(1.05)}
.hero-badge{
  position:absolute;top:16px;left:16px;z-index:3;
  background:var(--orange);color:#fff;
  padding:5px 14px;border-radius:6px;
  font-size:11.5px;font-weight:800;letter-spacing:1px;
}
.hero-card .cap{
  position:absolute;left:0;right:0;bottom:0;z-index:2;
  background:linear-gradient(transparent,rgba(15,23,42,.9));
  color:#fff;padding:60px 26px 26px;
}
.hero-card .cap h3{font-size:20px;line-height:1.4;font-weight:800}
.hero-card .cap p{font-size:13px;opacity:.85;margin-top:10px;line-height:1.7}

/* PROMISE */
.promise{
  background:var(--white);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  padding:30px 0;
}
.promise-grid{
  display:grid;grid-template-columns:repeat(4,1fr);gap:20px;
}
.promise-item{
  display:flex;flex-direction:column;align-items:center;
  text-align:center;
  padding:18px 12px;
  border-radius:var(--radius);
  background:var(--bg);
  transition:all .3s;
}
.promise-item:hover{
  background:var(--white);
  box-shadow:0 12px 30px rgba(14,165,233,.12);
  transform:translateY(-4px);
}
.pi-ico{
  display:inline-flex;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:50%;
  background:linear-gradient(135deg,var(--sky),var(--orange));
  color:#fff;font-size:20px;font-weight:800;
  margin-bottom:10px;
}
.promise-item b{
  font-size:15px;font-weight:800;color:var(--text);
  margin-bottom:4px;
}
.promise-item span{
  font-size:12px;color:var(--sub);
}

/* SECTION TITLE */
.sec-title{
  display:flex;align-items:baseline;justify-content:space-between;
  padding-bottom:16px;margin-bottom:28px;
  border-bottom:2px solid var(--sky-lt);
}
.sec-title h2{
  font-size:24px;font-weight:800;color:var(--text);letter-spacing:1px;
}
.sec-title span{
  font-size:12px;letter-spacing:4px;
  color:var(--sky);font-weight:700;
}

/* TIMELINE */
.timeline{padding:60px 0;background:var(--bg)}
.tl-grid{
  display:grid;grid-template-columns:repeat(4,1fr);gap:22px;
  position:relative;
}
.tl-grid::before{
  content:"";position:absolute;
  left:12.5%;right:12.5%;top:36px;height:2px;
  background:linear-gradient(90deg,var(--sky),var(--orange));
}
.tl-step{
  background:var(--white);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:26px 22px 24px;
  text-align:center;
  position:relative;
  z-index:2;
  transition:all .3s;
}
.tl-step:hover{
  border-color:var(--sky);
  transform:translateY(-4px);
  box-shadow:0 18px 40px rgba(14,165,233,.14);
}
.tl-num{
  display:inline-flex;align-items:center;justify-content:center;
  width:48px;height:48px;border-radius:50%;
  background:linear-gradient(135deg,var(--sky),var(--orange));
  color:#fff;font-size:16px;font-weight:800;
  margin-bottom:14px;
  font-family:Georgia,serif;
}
.tl-step h3{
  font-size:16px;font-weight:800;color:var(--text);
  margin-bottom:8px;
}
.tl-step p{
  font-size:12.5px;color:var(--sub);line-height:1.75;
}

/* CATEGORIES */
.categories{padding:60px 0;background:var(--white)}
.cat-grid{
  display:grid;grid-template-columns:repeat(4,1fr);gap:22px;
}
.cat-card{
  background:var(--bg);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:24px 20px;
  display:flex;flex-direction:column;
  transition:all .3s;
  position:relative;overflow:hidden;
}
.cat-card::before{
  content:"";position:absolute;top:0;left:0;width:4px;height:0;
  background:linear-gradient(180deg,var(--sky),var(--orange));
  transition:height .4s;
}
.cat-card:hover::before{height:100%}
.cat-card:hover{
  border-color:var(--sky);
  background:var(--white);
  transform:translateY(-6px);
  box-shadow:0 20px 46px rgba(14,165,233,.14);
}
.cc-num{
  display:inline-block;
  font-family:Georgia,serif;
  font-size:13px;font-weight:800;
  color:var(--orange);letter-spacing:2px;
  margin-bottom:10px;
}
.cat-card h3{
  font-size:17px;font-weight:800;color:var(--text);
  padding-bottom:12px;margin-bottom:12px;
  border-bottom:1px dashed var(--line);
}
.cat-card p{
  font-size:13px;color:var(--sub);line-height:1.85;
  margin-bottom:14px;flex:1;
}
.cc-link{
  display:flex;gap:12px;align-items:center;
  padding-top:12px;border-top:1px dashed var(--line);
}
.cc-link img{
  width:64px;height:48px;object-fit:cover;flex-shrink:0;
  border-radius:6px;
}
.cc-link span{
  font-size:12.5px;line-height:1.5;font-weight:600;
  color:var(--text);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.cc-link:hover span{color:var(--sky-dk)}

/* FEATURED */
.featured{padding:60px 0;background:var(--bg)}
.feature-row{
  display:grid;grid-template-columns:repeat(3,1fr);gap:22px;
}
.feature-card{
  background:var(--white);
  border:1px solid var(--line);
  border-radius:var(--radius);
  overflow:hidden;
  display:flex;flex-direction:column;
  transition:all .35s;
}
.feature-card:hover{
  transform:translateY(-6px);
  border-color:var(--sky);
  box-shadow:0 22px 46px rgba(14,165,233,.16);
}
.fc-thumb{
  width:100%;aspect-ratio:16/10;overflow:hidden;
  background:var(--sky-lt);
  display:block;
}
.fc-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .6s}
.feature-card:hover .fc-thumb img{transform:scale(1.06)}
.fc-body{padding:18px 20px 20px}
.fc-tag{
  display:inline-block;
  background:var(--sky-lt);color:var(--sky-dk);
  padding:3px 10px;border-radius:4px;
  font-size:11px;font-weight:700;
  letter-spacing:1px;margin-bottom:10px;
}
.fc-body b{
  display:block;
  font-size:16px;line-height:1.4;font-weight:800;
  color:var(--text);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.feature-card:hover .fc-body b{color:var(--sky-dk)}
.fc-body em{
  display:block;
  font-style:normal;
  font-size:12.5px;color:var(--sub);line-height:1.7;
  margin-top:8px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.fc-meta{
  display:block;
  font-size:11.5px;color:var(--orange);
  margin-top:10px;letter-spacing:1px;font-weight:600;
}

/* PROMISE 2 */
.promise-2{
  background:linear-gradient(135deg,var(--sky) 0%,var(--orange) 100%);
  color:#fff;padding:50px 0;
}
.p2-inner{
  display:flex;justify-content:space-between;align-items:center;
  gap:30px;flex-wrap:wrap;
}
.p2-copy h3{
  font-size:24px;font-weight:800;letter-spacing:1px;line-height:1.35;
}
.p2-copy p{
  font-size:13.5px;opacity:.9;margin-top:10px;max-width:36em;
}
.p2-btns{display:flex;gap:12px;flex-wrap:wrap}
.promise-2 .btn-solid{
  background:#fff;color:var(--sky-dk);
  box-shadow:0 10px 24px rgba(0,0,0,.12);
}
.btn-outline{
  padding:9px 22px;border-radius:24px;
  border:1px solid #fff;color:#fff;
  font-size:13.5px;font-weight:700;
  transition:all .3s;
}
.btn-outline:hover{background:#fff;color:var(--sky-dk)}

/* FOOTER */
.site-foot{
  background:#0b1220;color:#94a3b8;
  padding:50px 0 0;
}
.foot-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:36px;
}
.foot-brand b{
  display:block;font-size:18px;font-weight:800;
  color:#fff;letter-spacing:2px;margin-bottom:14px;
}
.foot-brand p{font-size:12.5px;line-height:2;color:#94a3b8;max-width:30em}
.foot-col h4{
  font-size:13px;font-weight:800;
  color:var(--sky);letter-spacing:2px;
  margin-bottom:14px;
}
.foot-col ul li{font-size:12.5px;line-height:2.2;color:#94a3b8}
.foot-bottom{
  margin-top:40px;
  border-top:1px solid #1e293b;
  padding:22px 0;
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;
  font-size:11.5px;letter-spacing:2px;color:#64748b;
}
.foot-bottom span:last-child{color:var(--sky)}

/* LIST */
.crumb{font-size:12.5px;color:var(--sub);padding:20px 0}
.list-grid{
  display:grid;grid-template-columns:repeat(3,1fr);
  gap:22px;margin-bottom:40px;
}
.list-grid .li{
  background:var(--white);
  border:1px solid var(--line);
  border-radius:var(--radius);
  overflow:hidden;display:block;
  transition:all .35s;
}
.list-grid .li:hover{
  transform:translateY(-6px);
  border-color:var(--sky);
  box-shadow:0 22px 46px rgba(14,165,233,.16);
}
.list-grid .li .thumb{
  width:100%;aspect-ratio:4/3;overflow:hidden;background:var(--sky-lt);
}
.list-grid .li .thumb img{
  width:100%;height:100%;object-fit:cover;
  transition:transform .6s;
}
.list-grid .li:hover .thumb img{transform:scale(1.06)}
.list-grid .li .body{padding:20px 22px}
.list-grid .li .cat{
  display:inline-block;font-size:11.5px;
  letter-spacing:2px;color:var(--orange);
  font-weight:700;margin-bottom:10px;
}
.list-grid .li h3{
  font-size:17px;line-height:1.4;font-weight:800;
  color:var(--text);min-height:48px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.list-grid .li:hover h3{color:var(--sky-dk)}
.list-grid .li p{
  font-size:12.5px;line-height:1.8;color:var(--sub);margin-top:10px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.list-grid .li .m{
  display:flex;justify-content:space-between;
  font-size:11.5px;letter-spacing:1px;
  color:var(--sky);font-weight:600;
  margin-top:14px;padding-top:12px;
  border-top:1px dashed var(--line);
}
.pager{display:flex;justify-content:center;gap:8px;padding:0 0 50px}
.pager a,.pager span{
  min-width:42px;height:42px;padding:0 14px;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--white);border:1px solid var(--line);
  border-radius:10px;
  font-size:13px;color:var(--sub);
  transition:all .3s;
}
.pager a:hover{
  background:var(--sky);color:#fff;border-color:var(--sky);
}

/* ARTICLE */
.article-wrap{max-width:900px;margin:0 auto;padding:36px 24px 60px}
.article-box{
  background:var(--white);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:50px 58px 56px;
  position:relative;
  border-top:4px solid var(--sky);
}
.article-box h1{
  font-size:30px;line-height:1.4;font-weight:800;
  color:var(--text);letter-spacing:.5px;
}
.article-meta{
  display:flex;gap:24px;flex-wrap:wrap;
  font-size:12.5px;color:var(--sub);
  padding:16px 0;
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  margin:22px 0 30px;
}
.article-body{font-size:16px;line-height:2.1;color:#1e293b}
.article-body p{margin-bottom:24px}
.article-body h2{
  font-size:21px;font-weight:800;color:var(--text);
  margin:40px 0 20px;padding-left:16px;
  border-left:4px solid var(--sky);
}
.article-body h3{
  font-size:17px;font-weight:700;color:var(--text);
  margin:30px 0 14px;
}
.article-body img{margin:24px 0;border-radius:12px}
.article-body blockquote{
  background:var(--sky-lt);
  border-left:4px solid var(--sky);
  padding:18px 24px;margin:26px 0;
  color:var(--sky-dk);font-size:15px;
  border-radius:0 12px 12px 0;
}
.article-nav{
  display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;
  margin-top:40px;padding-top:24px;
  border-top:1px solid var(--line);
  font-size:13px;color:var(--sub);
}
.article-nav a:hover{color:var(--sky-dk)}

.article-reco{
  margin-top:30px;
  background:var(--white);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:26px;
}
.reco-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.reco-item{
  display:block;
  background:var(--bg);
  border:1px solid var(--line);
  border-radius:12px;overflow:hidden;
  transition:all .3s;
}
.reco-item:hover{
  transform:translateY(-4px);
  border-color:var(--sky);
  box-shadow:0 16px 36px rgba(14,165,233,.16);
}
.reco-item .thumb{
  width:100%;aspect-ratio:4/3;overflow:hidden;background:var(--sky-lt);
}
.reco-item .thumb img{
  width:100%;height:100%;object-fit:cover;
  transition:transform .6s;
}
.reco-item:hover .thumb img{transform:scale(1.06)}
.reco-item .txt{padding:14px 16px}
.reco-item .txt b{
  display:block;
  font-size:13.5px;line-height:1.5;font-weight:700;color:var(--text);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.reco-item:hover .txt b{color:var(--sky-dk)}
.reco-item .txt em{
  display:block;font-style:normal;
  font-size:11px;color:var(--orange);
  letter-spacing:1px;margin-top:6px;font-weight:600;
}

/* RESPONSIVE */
@media(max-width:1240px){
  .cat-grid{grid-template-columns:repeat(3,1fr)}
  .feature-row{grid-template-columns:repeat(2,1fr)}
  .hero-copy h1{font-size:44px}
  .list-grid{grid-template-columns:repeat(2,1fr)}
  .article-box{padding:40px 40px 46px}
}
@media(max-width:1024px){
  .head-actions{display:none}
  .hero-inner{grid-template-columns:1fr;gap:36px}
  .hero-copy h1{font-size:38px}
  .cat-grid{grid-template-columns:repeat(2,1fr)}
  .tl-grid{grid-template-columns:repeat(2,1fr)}
  .tl-grid::before{display:none}
  .reco-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:768px){
  .topbar{display:none}
  .head-inner{grid-template-columns:1fr;gap:14px;padding:16px 20px}
  .logo-mark{width:46px;height:46px;font-size:22px}
  .logo-txt b{font-size:18px}
  .head-search{max-width:100%}
  .service-bar{padding:8px 0}
  .sb-item{font-size:12px;padding:4px 10px}

  .hero{padding:34px 0 26px}
  .hero-copy h1{font-size:28px}
  .hero-copy p{font-size:13.5px;margin-top:14px}
  .hero-card .cap h3{font-size:16px}

  .promise{padding:20px 0}
  .promise-grid{grid-template-columns:repeat(2,1fr);gap:12px}
  .promise-item{padding:14px 8px}
  .pi-ico{width:38px;height:38px;font-size:16px}
  .promise-item b{font-size:13.5px}
  .promise-item span{font-size:11.5px}

  .timeline, .categories, .featured{padding:36px 0}
  .sec-title h2{font-size:20px}
  .sec-title span{font-size:10px;letter-spacing:3px}
  .tl-grid, .cat-grid, .feature-row{grid-template-columns:1fr;gap:14px}

  .p2-inner{flex-direction:column;align-items:flex-start}
  .p2-copy h3{font-size:18px}

  .list-grid{grid-template-columns:1fr}
  .reco-grid{grid-template-columns:1fr}
  .article-wrap{padding:20px 16px 40px}
  .article-box{padding:28px 20px 32px}
  .article-box h1{font-size:22px}
  .article-body{font-size:15px}

  .foot-grid{grid-template-columns:1fr;gap:22px}
  .site-foot{padding:32px 0 0}
  .foot-bottom{flex-direction:column;text-align:center}
}