:root{
  --bg:#fafaf9;
  --bg-warm:#f5f5f4;
  --surface:#ffffff;
  --text:#1c1917;
  --text-secondary:#57534e;
  --text-tertiary:#a8a29e;
  --accent-warm:#78716c;
  --border:#e7e5e4;
  --radius:16px;
  --radius-sm:10px;
  --accent-orange:#ff8c00;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:"Inter",-apple-system,sans-serif;
  background:var(--bg);
  color:var(--text);
  font-size:16px;
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
}
.scroll-progress{
  position:fixed;
  top:0;left:0;
  height:2px;
  background:linear-gradient(90deg,var(--text),var(--accent-warm));
  z-index:9999;
  width:0%;
  will-change:width;
}
@keyframes fadeUp{
  from{opacity:0;transform:translate3d(0,30px,0)}
  to{opacity:1;transform:translate3d(0,0,0)}
}
@keyframes charReveal{
  from{opacity:0;transform:translate3d(0,20px,0)}
  to{opacity:1;transform:translate3d(0,0,0)}
}
@keyframes shimmer{
  0%{background-position:0% 50%}
  100%{background-position:200% 50%}
}
@keyframes scaleReveal{
  from{opacity:0;transform:scale(.92) translate3d(0,20px,0)}
  to{opacity:1;transform:scale(1) translate3d(0,0,0)}
}
.reveal{
  opacity:0;
  transform:translate3d(0,20px,0);
  transition:opacity .6s ease,transform .6s ease;
  will-change:opacity,transform;
}
.reveal.revealed{
  opacity:1;
  transform:translate3d(0,0,0)
}
.reveal-scale{
  opacity:0;
  transform:scale(.92) translate3d(0,20px,0);
  transition:opacity .7s ease,transform .7s ease;
  will-change:opacity,transform;
}
.reveal-scale.revealed{
  opacity:1;
  transform:scale(1) translate3d(0,0,0)
}
.stagger-1{transition-delay:.1s}
.stagger-2{transition-delay:.2s}
.stagger-3{transition-delay:.3s}
.stagger-4{transition-delay:.4s}
.stagger-5{transition-delay:.5s}
.stagger-6{transition-delay:.6s}
.site-header{
  background:var(--surface);
  border-bottom:1px solid var(--border);
  padding:16px 0;
  position:sticky;
  top:0;
  z-index:100;
}
.header-inner{
  max-width:1280px;
  margin:auto;
  padding:0 32px;
  display:flex;
  justify-content:space-between;
  align-items:center;
}
.logo{
  font-size:20px;
  font-weight:800;
  color:var(--text);
  letter-spacing:-.3px;
}
.logo span{
  color:var(--accent-orange);
  background:linear-gradient(90deg,var(--accent-orange),#ffb347,var(--accent-orange));
  background-size:200% auto;
  -webkit-background-clip:text;
  -webkit-text-fill-color:transparent;
  background-clip:text;
  animation:shimmer 4s linear infinite;
}
.main-nav{
  display:flex;
  gap:28px;
  align-items:center;
}
.main-nav a{
  color:var(--text-secondary);
  font-size:14px;
  font-weight:600;
  text-decoration:none;
  transition:color .2s ease;
  position:relative;
}
.main-nav a::after{
  content:'';
  position:absolute;
  bottom:-4px;
  left:0;
  width:0;
  height:1.5px;
  background:var(--text);
  transition:width .3s ease;
}
.main-nav a:hover{
  color:var(--text);
}
.main-nav a:hover::after{
  width:100%;
}
.nav-btn{
  background:var(--text);
  color:var(--bg);
  padding:10px 22px;
  border-radius:var(--radius-sm);
  font-weight:700;
  font-size:13px;
  text-decoration:none;
  transition:all .25s ease;
  letter-spacing:.3px;
}
.nav-btn:hover{
  transform:translate3d(0,-2px,0);
  background:var(--accent-warm);
  box-shadow:0 8px 24px rgba(0,0,0,.12);
}
.blog-hero{
  max-width:1280px;
  margin:0 auto;
  padding:80px 32px 50px;
  text-align:center;
}
.blog-hero h1{
  font-size:clamp(36px,5vw,64px);
  font-weight:400;
  letter-spacing:-.03em;
  line-height:1.1;
  margin-bottom:16px;
}
.blog-hero h1 .word{
  display:inline-block;
  overflow:hidden;
  margin-right:.2em;
}
.blog-hero h1 .word span{
  display:inline-block;
  animation:charReveal .5s ease both;
}
.blog-hero h1 .word:nth-child(1) span{animation-delay:.2s}
.blog-hero h1 .word:nth-child(2) span{animation-delay:.3s}
.blog-hero h1 strong{
  font-weight:500;
  color:var(--accent-warm);
}
.blog-hero p{
  max-width:560px;
  margin:0 auto;
  font-size:17px;
  color:var(--text-secondary);
  line-height:1.7;
  animation:fadeUp .6s ease .6s both;
}
.filters{
  max-width:1280px;
  margin:0 auto;
  padding:0 32px;
  display:flex;
  justify-content:center;
  gap:10px;
  flex-wrap:wrap;
  margin-bottom:40px;
}
.filter-btn{
  padding:10px 24px;
  background:var(--surface);
  border:1.5px solid var(--border);
  border-radius:100px;
  color:var(--text-secondary);
  font-size:13px;
  cursor:pointer;
  transition:all .3s ease;
  font-weight:600;
  font-family:inherit;
  letter-spacing:.3px;
}
.filter-btn:hover{
  border-color:var(--text-tertiary);
  color:var(--text);
  transform:translate3d(0,-2px,0);
}
.filter-btn.active{
  background:var(--text);
  border-color:var(--text);
  color:var(--bg);
  box-shadow:0 4px 16px rgba(0,0,0,.1);
}
.refresh-wrap{
  max-width:1280px;
  margin:0 auto 30px;
  padding:0 32px;
  text-align:center;
}
.refresh-btn{
  padding:8px 18px;
  background:var(--bg-warm);
  border:1.5px solid var(--border);
  border-radius:var(--radius-sm);
  color:var(--text-secondary);
  font-size:13px;
  cursor:pointer;
  transition:all .2s ease;
  font-family:inherit;
  font-weight:500;
}
.refresh-btn:hover{
  background:var(--surface);
  color:var(--text);
  border-color:var(--text-tertiary);
}
.blog-section{
  max-width:1280px;
  margin:0 auto;
  padding:0 32px 60px;
}
.blog-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
@media(max-width:1024px){
  .blog-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:640px){
  .blog-grid{grid-template-columns:1fr}
}
.blog-card{
  display:block;
  text-decoration:none;
  color:inherit;
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--radius);
  overflow:hidden;
  transition:all .5s cubic-bezier(0.16,1,0.3,1);
  cursor:pointer;
  position:relative;
  transform:translate3d(0,0,0);
}
.blog-card::before{
  content:'';
  position:absolute;
  top:0;left:0;right:0;
  height:3px;
  background:linear-gradient(90deg,var(--text),var(--accent-warm));
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .6s ease;
  z-index:2;
}
.blog-card:hover::before{
  transform:scaleX(1);
}
.blog-card:hover{
  transform:translate3d(0,-8px,0);
  border-color:#d6d3d1;
  box-shadow:0 20px 60px rgba(0,0,0,.1);
}
.blog-img-wrap{
  width:100%;
  height:220px;
  overflow:hidden;
  position:relative;
  background:var(--bg-warm);
}
.blog-img{
  width:100%;
  height:100%;
  object-fit:cover;
  display:block;
  transition:transform .6s ease;
}
.blog-card:hover .blog-img{
  transform:scale(1.08);
}
.blog-body{
  padding:28px;
}
.blog-meta{
  display:flex;
  gap:12px;
  align-items:center;
  margin-bottom:14px;
  font-size:12px;
  color:var(--text-tertiary);
  text-transform:uppercase;
  letter-spacing:1px;
  font-weight:500;
}
.blog-category{
  background:var(--text);
  color:var(--bg);
  padding:4px 12px;
  border-radius:20px;
  font-weight:700;
  font-size:10px;
  letter-spacing:.5px;
}
.blog-card h3{
  font-size:20px;
  font-weight:600;
  margin-bottom:10px;
  line-height:1.35;
  letter-spacing:-.3px;
  transition:color .2s ease;
}
.blog-card:hover h3{
  color:var(--accent-warm);
}
.blog-card p{
  color:var(--text-secondary);
  font-size:14px;
  line-height:1.65;
  margin-bottom:18px;
  display:-webkit-box;
  -webkit-line-clamp:3;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.read-more{
  color:var(--text);
  font-weight:700;
  font-size:13px;
  display:inline-flex;
  align-items:center;
  gap:6px;
  letter-spacing:.3px;
  transition:all .3s ease;
}
.read-more::after{
  content:"→";
  transition:transform .3s ease;
}
.blog-card:hover .read-more{
  color:var(--accent-orange);
}
.blog-card:hover .read-more::after{
  transform:translateX(4px);
}
.loading{
  text-align:center;
  padding:80px 20px;
  color:var(--text-tertiary);
  font-size:16px;
  grid-column:1 / -1;
}
.error{
  text-align:center;
  padding:60px 20px;
  color:#dc2626;
  font-size:16px;
  grid-column:1 / -1;
}
.error button{
  margin-top:16px;
  padding:12px 24px;
  background:var(--text);
  border:none;
  border-radius:var(--radius-sm);
  color:var(--bg);
  font-weight:700;
  cursor:pointer;
  transition:all .2s ease;
}
.error button:hover{
  background:var(--accent-warm);
  transform:translate3d(0,-2px,0);
}
.article-view{
  display:none;
  max-width:800px;
  margin:40px auto 80px;
  padding:0 32px;
  animation:fadeUp .6s ease both;
}
.article-view.active{
  display:block;
}
.back-btn{
  display:inline-flex;
  align-items:center;
  gap:8px;
  margin-bottom:32px;
  padding:10px 20px;
  background:var(--surface);
  border:1.5px solid var(--border);
  border-radius:var(--radius-sm);
  color:var(--text-secondary);
  font-size:14px;
  font-weight:600;
  cursor:pointer;
  transition:all .2s ease;
  font-family:inherit;
}
.back-btn:hover{
  border-color:var(--text-tertiary);
  color:var(--text);
  transform:translate3d(-4px,0,0);
}
.article-hero-img{
  width:100%;
  height:400px;
  object-fit:cover;
  border-radius:var(--radius);
  margin-bottom:40px;
  background:var(--bg-warm);
}
.article-header{
  margin-bottom:40px;
}
.article-header .blog-meta{
  margin-bottom:20px;
}
.article-header h1{
  font-size:clamp(28px,4vw,42px);
  font-weight:600;
  line-height:1.2;
  letter-spacing:-.5px;
}
.article-body{
  color:var(--text-secondary);
  font-size:17px;
  line-height:1.85;
}
.article-body p{
  margin-bottom:22px;
}
.article-body h2,
.article-body h3{
  color:var(--text);
  margin:40px 0 16px;
  font-weight:600;
  letter-spacing:-.3px;
}
.article-body h2{
  font-size:26px;
}
.article-body h3{
  font-size:21px;
}
.article-body ul{
  margin:20px 0 20px 32px;
}
.article-body li{
  margin-bottom:12px;
}
.article-body li::marker{
  color:var(--accent-orange);
}
.article-body strong{
  color:var(--text);
}
.site-footer{
  background:var(--bg-warm);
  border-top:1px solid var(--border);
  padding:40px 32px;
  text-align:center;
}
.site-footer p{
  color:var(--text-tertiary);
  font-size:13px;
  letter-spacing:.3px;
}
@media(max-width:768px){
  .header-inner{padding:0 20px}
  .main-nav a:not(.nav-btn){display:none}
  .blog-hero{padding:60px 20px 40px}
  .blog-hero h1{font-size:36px}
  .filters{padding:0 20px}
  .blog-section{padding:0 20px 40px}
  .article-view{padding:0 20px;margin-top:24px}
  .article-hero-img{height:240px}
  .article-header h1{font-size:28px}
}