:root{
  --bg:#0b0e14;
  --bg2:#121722;
  --card:rgba(24,30,44,.72);
  --card-solid:#181e2c;
  --txt:#e9edf5;
  --sub:#98a2b8;
  --pri:#e63946;
  --pri2:#ff6b6b;
  --accent:#2ec4b6;
  --gold:#ffb703;
  --line:rgba(255,255,255,.08);
  --glass:rgba(18,23,34,.6);
  --shadow:0 18px 50px rgba(0,0,0,.45);
  --radius:18px;
  --radius-sm:12px;
}

*{margin:0;padding:0;box-sizing:border-box}

html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}

body{
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Segoe UI",sans-serif;
  background:
    radial-gradient(1200px 600px at 12% -8%,rgba(230,57,70,.16),transparent 60%),
    radial-gradient(1000px 560px at 92% 4%,rgba(46,196,182,.12),transparent 58%),
    radial-gradient(900px 700px at 50% 120%,rgba(255,107,107,.08),transparent 60%),
    var(--bg);
  background-attachment:fixed;
  color:var(--txt);
  line-height:1.85;
  font-size:16px;
  letter-spacing:.2px;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
  transition:background-color .4s ease,color .4s ease;
}

body.light{
  --bg:#f4f6fb;
  --bg2:#ffffff;
  --card:rgba(255,255,255,.78);
  --card-solid:#ffffff;
  --txt:#161a24;
  --sub:#5b6579;
  --line:rgba(15,20,35,.09);
  --glass:rgba(255,255,255,.68);
  --shadow:0 16px 40px rgba(30,45,80,.12);
  background:
    radial-gradient(1100px 560px at 10% -6%,rgba(230,57,70,.14),transparent 60%),
    radial-gradient(900px 520px at 94% 2%,rgba(46,196,182,.14),transparent 58%),
    var(--bg);
}

a{color:inherit;text-decoration:none;transition:color .25s ease,opacity .25s ease}
a:hover{color:var(--pri2)}

img,svg{max-width:100%;display:block}

::selection{background:rgba(230,57,70,.35);color:#fff}

::-webkit-scrollbar{width:10px;height:10px}
::-webkit-scrollbar-track{background:transparent}
::-webkit-scrollbar-thumb{
  background:linear-gradient(180deg,var(--pri),var(--pri2));
  border-radius:10px;
  border:2px solid transparent;
  background-clip:padding-box;
}

.wrap{max-width:1180px;margin:0 auto;padding:0 22px}

/* ============ Header ============ */
header{
  position:sticky;
  top:0;
  z-index:100;
  background:var(--glass);
  backdrop-filter:blur(18px) saturate(160%);
  -webkit-backdrop-filter:blur(18px) saturate(160%);
  border-bottom:1px solid var(--line);
  box-shadow:0 6px 30px rgba(0,0,0,.18);
  transition:background .4s ease,border-color .4s ease;
}

.nav{
  display:flex;
  align-items:center;
  gap:24px;
  height:68px;
}

.logo{
  display:flex;
  align-items:center;
  gap:10px;
  font-weight:800;
  font-size:20px;
  white-space:nowrap;
  letter-spacing:.5px;
  background:linear-gradient(120deg,#fff 20%,var(--pri2) 55%,var(--gold) 95%);
  -webkit-background-clip:text;
  background-clip:text;
  -webkit-text-fill-color:transparent;
  transition:transform .3s ease,filter .3s ease;
}
.logo:hover{transform:translateY(-1px);filter:brightness(1.1)}
.logo svg{
  width:36px;height:36px;
  border-radius:50%;
  box-shadow:0 0 0 2px rgba(255,255,255,.12),0 6px 18px rgba(230,57,70,.45);
  transition:transform .5s cubic-bezier(.34,1.56,.64,1);
}
.logo:hover svg{transform:rotate(-12deg) scale(1.06)}

.nav-links{
  display:flex;
  gap:4px;
  flex:1;
  font-size:14.5px;
  flex-wrap:wrap;
}
.nav-links a{
  color:var(--sub);
  padding:8px 12px;
  border-radius:10px;
  position:relative;
  transition:color .25s ease,background .25s ease,transform .25s ease;
}
.nav-links a::after{
  content:"";
  position:absolute;
  left:12px;right:12px;bottom:4px;
  height:2px;
  border-radius:2px;
  background:linear-gradient(90deg,var(--pri),var(--pri2));
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .3s ease;
}
.nav-links a:hover{
  color:var(--txt);
  background:rgba(255,255,255,.05);
  transform:translateY(-1px);
}
.nav-links a:hover::after{transform:scaleX(1)}

.nav-tools{display:flex;gap:10px;align-items:center}

.search-box{
  display:flex;
  align-items:center;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:24px;
  overflow:hidden;
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  transition:border-color .3s ease,box-shadow .3s ease,transform .3s ease;
}
.search-box:focus-within{
  border-color:rgba(230,57,70,.6);
  box-shadow:0 0 0 4px rgba(230,57,70,.15);
  transform:translateY(-1px);
}
.search-box input{
  background:none;
  border:none;
  outline:none;
  color:var(--txt);
  padding:9px 16px;
  width:158px;
  font-size:14px;
  transition:width .35s ease;
}
.search-box input::placeholder{color:var(--sub);opacity:.85}
.search-box input:focus{width:190px}
.search-box button{
  background:linear-gradient(135deg,var(--pri),var(--pri2));
  border:none;
  color:#fff;
  padding:0 18px;
  align-self:stretch;
  cursor:pointer;
  font-size:14px;
  font-weight:600;
  letter-spacing:.5px;
  transition:filter .25s ease;
}
.search-box button:hover{filter:brightness(1.12)}

.icon-btn{
  background:var(--card);
  border:1px solid var(--line);
  color:var(--txt);
  width:40px;height:40px;
  border-radius:50%;
  cursor:pointer;
  display:flex;
  align-items:center;
  justify-content:center;
  transition:transform .3s ease,border-color .3s ease,background .3s ease,box-shadow .3s ease;
}
.icon-btn:hover{
  transform:translateY(-2px) rotate(8deg);
  border-color:rgba(230,57,70,.55);
  box-shadow:0 8px 22px rgba(230,57,70,.25);
}
.icon-btn:active{transform:scale(.94)}

.menu-btn{display:none}

/* ============ Breadcrumb ============ */
.breadcrumb{
  font-size:13px;
  color:var(--sub);
  padding:18px 0 6px;
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:2px;
}
.breadcrumb a{transition:color .25s ease}
.breadcrumb a:hover{color:var(--pri2)}
.breadcrumb span{margin:0 6px;opacity:.7}

/* ============ Banner ============ */
.banner{
  position:relative;
  height:440px;
  overflow:hidden;
  background:
    radial-gradient(700px 400px at 80% 10%,rgba(230,57,70,.22),transparent 65%),
    radial-gradient(600px 380px at 10% 90%,rgba(46,196,182,.18),transparent 65%),
    linear-gradient(135deg,#141a27 0%,#1a2133 55%,#12161f 100%);
  border-bottom:1px solid var(--line);
}
body.light .banner{
  background:
    radial-gradient(700px 400px at 80% 10%,rgba(230,57,70,.16),transparent 65%),
    radial-gradient(600px 380px at 10% 90%,rgba(46,196,182,.16),transparent 65%),
    linear-gradient(135deg,#eef2fb 0%,#f7f9ff 55%,#e9eef8 100%);
}
.banner::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:
    linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);
  background-size:56px 56px;
  mask-image:radial-gradient(circle at 50% 40%,#000 30%,transparent 78%);
  -webkit-mask-image:radial-gradient(circle at 50% 40%,#000 30%,transparent 78%);
  pointer-events:none;
}

.slide{
  position:absolute;
  inset:0;
  opacity:0;
  visibility:hidden;
  transform:scale(1.03);
  transition:opacity .9s ease,transform .9s ease,visibility .9s;
  display:flex;
  align-items:center;
}
.slide.on{opacity:1;visibility:visible;transform:scale(1)}
.slide .wrap{display:flex;align-items:center;gap:48px;width:100%}

.slide-art{
  flex:0 0 280px;
  filter:drop-shadow(0 26px 48px rgba(0,0,0,.5));
  animation:floatY 6s ease-in-out infinite;
}
.slide-art svg{border-radius:24px}
@keyframes floatY{
  0%,100%{transform:translateY(0)}
  50%{transform:translateY(-12px)}
}

.slide-txt{max-width:600px}
.slide-txt h2{
  font-size:36px;
  line-height:1.28;
  margin-bottom:16px;
  letter-spacing:.5px;
  background:linear-gradient(110deg,#fff 15%,#ffd9dc 45%,var(--pri2) 70%,var(--gold) 100%);
  -webkit-background-clip:text;
  background-clip:text;
  -webkit-text-fill-color:transparent;
  text-shadow:0 2px 30px rgba(230,57,70,.15);
}
body.light .slide-txt h2{
  background:linear-gradient(110deg,#1a1f2b 10%,#8c1f28 50%,#e63946 78%,#c47a00 100%);
  -webkit-background-clip:text;
  background-clip:text;
  -webkit-text-fill-color:transparent;
}
.slide-txt p{
  color:var(--sub);
  max-width:540px;
  margin-bottom:22px;
  font-size:15.5px;
}
body.light .slide-txt p{color:#4c5568}

.btn{
  display:inline-block;
  position:relative;
  background:linear-gradient(135deg,var(--pri) 0%,var(--pri2) 100%);
  color:#fff;
  padding:12px 30px;
  border-radius:30px;
  font-size:15px;
  font-weight:600;
  letter-spacing:.6px;
  overflow:hidden;
  box-shadow:0 10px 26px rgba(230,57,70,.38);
  transition:transform .3s cubic-bezier(.34,1.56,.64,1),box-shadow .3s ease,filter .3s ease;
}
.btn::after{
  content:"";
  position:absolute;
  top:0;left:-120%;
  width:60%;height:100%;
  background:linear-gradient(100deg,transparent,rgba(255,255,255,.45),transparent);
  transform:skewX(-22deg);
  transition:left .6s ease;
}
.btn:hover{
  transform:translateY(-3px) scale(1.02);
  box-shadow:0 16px 34px rgba(230,57,70,.5);
  filter:brightness(1.06);
  color:#fff;
}
.btn:hover::after{left:130%}

.dots{
  position:absolute;
  bottom:20px;
  left:50%;
  transform:translateX(-50%);
  display:flex;
  gap:10px;
  z-index:5;
}
.dots i{
  width:10px;height:10px;
  border-radius:50%;
  background:rgba(255,255,255,.3);
  cursor:pointer;
  transition:width .35s ease,background .35s ease,box-shadow .35s ease;
}
.dots i:hover{background:rgba(255,255,255,.6)}
.dots i.on{
  background:linear-gradient(90deg,var(--pri),var(--pri2));
  width:28px;
  border-radius:6px;
  box-shadow:0 0 14px rgba(230,57,70,.65);
}

/* ============ Main / Section ============ */
main{padding:0 0 40px}
section{padding:60px 0;position:relative}

.sec-head{text-align:center;margin-bottom:40px}
.sec-head h2{
  font-size:29px;
  margin-bottom:12px;
  letter-spacing:.6px;
  position:relative;
  display:inline-block;
  padding-bottom:14px;
}
.sec-head h2::after{
  content:"";
  position:absolute;
  left:50%;bottom:0;
  transform:translateX(-50%);
  width:64px;height:4px;
  border-radius:4px;
  background:linear-gradient(90deg,var(--pri),var(--pri2),var(--gold));
  box-shadow:0 0 18px rgba(230,57,70,.5);
}
.sec-head p{
  color:var(--sub);
  max-width:760px;
  margin:0 auto;
  font-size:15px;
}

/* ============ Grid ============ */
.grid{display:grid;gap:22px}
.g3{grid-template-columns:repeat(3,1fr)}
.g2{grid-template-columns:repeat(2,1fr)}
.g4{grid-template-columns:repeat(4,1fr)}

/* ============ Card ============ */
.card{
  position:relative;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:26px;
  backdrop-filter:blur(16px) saturate(150%);
  -webkit-backdrop-filter:blur(16px) saturate(150%);
  box-shadow:0 6px 22px rgba(0,0,0,.16);
  overflow:hidden;
  transition:transform .35s cubic-bezier(.34,1.4,.64,1),border-color .35s ease,box-shadow .35s ease,background .35s ease;
}
.card::before{
  content:"";
  position:absolute;
  inset:0;
  border-radius:inherit;
  padding:1px;
  background:linear-gradient(135deg,rgba(230,57,70,.55),rgba(46,196,182,.35),transparent 65%);
  -webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);
  -webkit-mask-composite:xor;
  mask-composite:exclude;
  opacity:0;
  transition:opacity .35s ease;
  pointer-events:none;
}
.card::after{
  content:"";
  position:absolute;
  top:-60%;right:-40%;
  width:220px;height:220px;
  background:radial-gradient(circle,rgba(230,57,70,.22),transparent 70%);
  opacity:0;
  transition:opacity .4s ease,transform .5s ease;
  pointer-events:none;
}
.card:hover{
  transform:translateY(-6px);
  border-color:rgba(230,57,70,.45);
  box-shadow:0 22px 48px rgba(0,0,0,.4),0 0 0 1px rgba(230,57,70,.12);
}
.card:hover::before{opacity:1}
.card:hover::after{opacity:1;transform:translate(-10px,10px)}

.card h3{
  font-size:18px;
  margin-bottom:10px;
  letter-spacing:.3px;
  position:relative;
  padding-left:14px;
}
.card h3::before{
  content:"";
  position:absolute;
  left:0;top:50%;
  transform:translateY(-50%);
  width:4px;height:18px;
  border-radius:4px;
  background:linear-gradient(180deg,var(--pri),var(--pri2));
  box-shadow:0 0 12px rgba(230,57,70,.6);
}
.card h4{
  font-size:14.5px;
  margin:16px 0 6px;
  color:var(--pri2);
  letter-spacing:.4px;
}
.card p{
  color:var(--sub);
  font-size:14.5px;
  line-height:1.85;
}
.card a{
  color:var(--pri2);
  font-size:14px;
  display:inline-block;
  position:relative;
  transition:transform .25s ease,color .25s ease;
}
.card a::after{
  content:"";
  position:absolute;
  left:0;bottom:-2px;
  width:100%;height:1px;
  background:currentColor;
  transform:scaleX(0);
  transform-origin:right;
  transition:transform .3s ease;
}
.card a:hover{transform:translateX(3px)}
.card a:hover::after{transform:scaleX(1);transform-origin:left}

/* ============ Stats ============ */
.stats{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:20px;
  text-align:center;
}
.stats > div{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:28px 16px;
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  transition:transform .35s ease,border-color .35s ease,box-shadow .35s ease;
}
.stats > div:hover{
  transform:translateY(-6px) scale(1.02);
  border-color:rgba(46,196,182,.5);
  box-shadow:0 18px 40px rgba(46,196,182,.18);
}
.stat-num{
  font-size:40px;
  font-weight:800;
  line-height:1.2;
  background:linear-gradient(120deg,var(--pri2),var(--gold),var(--accent));
  -webkit-background-clip:text;
  background-clip:text;
  -webkit-text-fill-color:transparent;
  letter-spacing:1px;
  font-variant-numeric:tabular-nums;
}
.stat-lbl{color:var(--sub);font-size:14px;margin-top:6px}

/* ============ Articles ============ */
.article-list{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:20px;
}
.art{
  position:relative;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-sm);
  padding:24px;
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  overflow:hidden;
  transition:transform .35s cubic-bezier(.34,1.4,.64,1),border-color .35s ease,box-shadow .35s ease;
}
.art::before{
  content:"";
  position:absolute;
  left:0;top:0;bottom:0;
  width:3px;
  background:linear-gradient(180deg,var(--pri),var(--pri2),var(--gold));
  transform:scaleY(0);
  transform-origin:top;
  transition:transform .4s ease;
}
.art:hover{
  transform:translateY(-5px);
  border-color:rgba(255,107,107,.4);
  box-shadow:0 20px 42px rgba(0,0,0,.34);
}
.art:hover::before{transform:scaleY(1)}
.art time{
  font-size:12.5px;
  color:var(--pri2);
  letter-spacing:.8px;
  font-weight:600;
  display:inline-block;
  padding:3px 10px;
  border-radius:20px;
  background:rgba(230,57,70,.12);
  border:1px solid rgba(230,57,70,.22);
}
.art h3{
  font-size:17px;
  margin:12px 0 8px;
  line-height:1.6;
  transition:color .3s ease;
}
.art:hover h3{color:var(--pri2)}
.art p{
  color:var(--sub);
  font-size:14px;
  margin-bottom:12px;
}
.art a{
  color:var(--pri2);
  font-size:14px;
  font-weight:600;
  display:inline-flex;
  align-items:center;
  gap:4px;
  transition:gap .3s ease,color .3s ease;
}
.art a:hover{gap:9px;color:var(--gold)}

/* ============ FAQ ============ */
.faq-item{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-sm);
  margin-bottom:12px;
  overflow:hidden;
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  transition:border-color .3s ease,box-shadow .3s ease,transform .3s ease;
}
.faq-item:hover{
  border-color:rgba(230,57,70,.35);
  box-shadow:0 10px 28px rgba(0,0,0,.24);
}
.faq-item.open{
  border-color:rgba(230,57,70,.55);
  box-shadow:0 14px 34px rgba(230,57,70,.16);
}
.faq-q{
  padding:17px 22px;
  cursor:pointer;
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:16px;
  font-weight:600;
  font-size:15.5px;
  user-select:none;
  transition:color .25s ease,background .25s ease;
}
.faq-q:hover{color:var(--pri2);background:rgba(255,255,255,.03)}
.faq-q span{
  flex:0 0 26px;
  width:26px;height:26px;
  display:flex;
  align-items:center;
  justify-content:center;
  border-radius:50%;
  background:rgba(230,57,70,.14);
  color:var(--pri2);
  font-size:16px;
  line-height:1;
  transition:transform .35s cubic-bezier(.34,1.56,.64,1),background .3s ease,color .3s ease;
}
.faq-item.open .faq-q span{
  transform:rotate(135deg);
  background:linear-gradient(135deg,var(--pri),var(--pri2));
  color:#fff;
}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .45s cubic-bezier(.4,0,.2,1),padding .4s ease,opacity .4s ease;
  padding:0 22px;
  color:var(--sub);
  font-size:14.5px;
  opacity:0;
}
.faq-item.open .faq-a{
  max-height:520px;
  padding:0 22px 20px;
  opacity:1;
}

/* ============ Steps ============ */
.steps{counter-reset:st;position:relative}
.steps::before{
  content:"";
  position:absolute;
  left:22px;top:22px;bottom:22px;
  width:2px;
  background:linear-gradient(180deg,var(--pri),rgba(230,57,70,.15),var(--accent));
  border-radius:2px;
  opacity:.6;
}
.step{
  display:flex;
  gap:18px;
  margin-bottom:24px;
  position:relative;
  align-items:flex-start;
}
.step:last-child{margin-bottom:0}
.step-num{
  flex:0 0 46px;
  height:46px;
  border-radius:50%;
  background:linear-gradient(135deg,var(--pri),var(--pri2));
  color:#fff;
  display:flex;
  align-items:center;
  justify-content:center;
  font-weight:800;
  font-size:18px;
  box-shadow:0 8px 22px rgba(230,57,70,.45);
  position:relative;
  z-index:1;
  transition:transform .35s cubic-bezier(.34,1.56,.64,1),box-shadow .35s ease;
}
.step:hover .step-num{
  transform:scale(1.12) rotate(-6deg);
  box-shadow:0 12px 30px rgba(230,57,70,.6);
}
.step-body{
  flex:1;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-sm);
  padding:16px 20px;
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  transition:transform .3s ease,border-color .3s ease;
}
.step:hover .step-body{
  transform:translateX(4px);
  border-color:rgba(230,57,70,.4);
}
.step-body h3{font-size:17px;margin-bottom:6px}
.step-body p{color:var(--sub);font-size:14.5px}

/* ============ Contact ============ */
.contact-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:22px;
}
.contact-grid .card{text-align:center}
.contact-grid .card h3{padding-left:0;display:inline-block}
.contact-grid .card h3::before{display:none}
.contact-grid .card svg{
  margin:0 auto 16px;
  filter:drop-shadow(0 8px 20px rgba(230,57,70,.4));
  transition:transform .45s cubic-bezier(.34,1.56,.64,1);
}
.contact-grid .card:hover svg{transform:translateY(-4px) scale(1.1) rotate(-6deg)}
.contact-grid .card p:first-of-type{
  color:var(--txt);
  font-weight:600;
  font-size:15.5px;
  margin-bottom:4px;
}

/* ============ Author Box ============ */
.author-box{
  display:flex;
  gap:18px;
  align-items:center;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:20px 24px;
  margin-top:24px;
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  position:relative;
  overflow:hidden;
  transition:border-color .3s ease,box-shadow .3s ease,transform .3s ease;
}
.author-box::before{
  content:"";
  position:absolute;
  left:0;top:0;bottom:0;
  width:4px;
  background:linear-gradient(180deg,var(--pri),var(--gold));
}
.author-box:hover{
  transform:translateY(-3px);
  border-color:rgba(255,183,3,.45);
  box-shadow:0 16px 36px rgba(255,183,3,.14);
}
.author-box svg{
  flex:0 0 56px;
  border-radius:50%;
  box-shadow:0 0 0 3px rgba(230,57,70,.22),0 8px 20px rgba(0,0,0,.35);
  transition:transform .5s ease;
}
.author-box:hover svg{transform:rotate(8deg) scale(1.05)}
.author-box h4{font-size:15px;margin-bottom:5px;color:var(--txt)}
.author-box p{font-size:13.5px;color:var(--sub)}

/* ============ Tag ============ */
.tag{
  display:inline-block;
  background:rgba(230,57,70,.14);
  color:var(--pri2);
  font-size:12.5px;
  padding:4px 12px;
  border-radius:14px;
  margin:0 6px 6px 0;
  border:1px solid rgba(230,57,70,.2);
  transition:background .25s ease,transform .25s ease;
}
.tag:hover{background:rgba(230,57,70,.26);transform:translateY(-2px)}

/* ============ Footer ============ */
footer{
  background:linear-gradient(180deg,rgba(10,13,20,0) 0%,rgba(10,13,20,.6) 30%,var(--bg2) 100%);
  border-top:1px solid var(--line);
  padding:56px 0 26px;
  margin-top:50px;
  position:relative;
}
body.light footer{
  background:linear-gradient(180deg,rgba(255,255,255,0) 0%,rgba(255,255,255,.7) 30%,var(--bg2) 100%);
}
footer::before{
  content:"";
  position:absolute;
  top:0;left:0;right:0;
  height:1px;
  background:linear-gradient(90deg,transparent,var(--pri),var(--accent),transparent);
  opacity:.6;
}
.foot-grid{
  display:grid;
  grid-template-columns:2fr 1fr 1fr 1.2fr;
  gap:32px;
  margin-bottom:34px;
}
.foot-grid h4{
  font-size:15px;
  margin-bottom:16px;
  position:relative;
  padding-bottom:10px;
  letter-spacing:.6px;
}
.foot-grid h4::after{
  content:"";
  position:absolute;
  left:0;bottom:0;
  width:28px;height:3px;
  border-radius:3px;
  background:linear-gradient(90deg,var(--pri),var(--pri2));
}
.foot-grid a,.foot-grid p{
  color:var(--sub);
  font-size:14px;
  display:block;
  margin-bottom:9px;
  transition:color .25s ease,transform .25s ease;
}
.foot-grid a:hover{color:var(--pri2);transform:translateX(4px)}
.foot-bottom{
  border-top:1px solid var(--line);
  padding-top:22px;
  color:var(--sub);
  font-size:13px;
  text-align:center;
}
.foot-bottom p{margin-bottom:6px}
.foot-bottom a{color:var(--pri2);transition:color .25s ease}
.foot-bottom a:hover{color:var(--gold)}

/* ============ Back To Top ============ */
#top{
  position:fixed;
  right:26px;
  bottom:32px;
  width:48px;height:48px;
  border-radius:50%;
  background:linear-gradient(135deg,var(--pri),var(--pri2));
  color:#fff;
  border:none;
  cursor:pointer;
  display:none;
  align-items:center;
  justify-content:center;
  z-index:99;
  box-shadow:0 10px 28px rgba(230,57,70,.5);
  transition:transform .3s cubic-bezier(.34,1.56,.64,1),box-shadow .3s ease,filter .3s ease;
}
#top.show{display:flex;animation:popIn .4s cubic-bezier(.34,1.56,.64,1)}
#top:hover{
  transform:translateY(-4px) scale(1.08);
  box-shadow:0 16px 36px rgba(230,57,70,.65);
  filter:brightness(1.1);
}
#top:active{transform:scale(.92)}
@keyframes popIn{
  0%{opacity:0;transform:scale(.4) translateY(20px)}
  100%{opacity:1;transform:scale(1) translateY(0)}
}

/* ============ Reveal Animation ============ */
.reveal{
  opacity:0;
  transform:translateY(28px);
  transition:opacity .7s cubic-bezier(.4,0,.2,1),transform .7s cubic-bezier(.4,0,.2,1);
  will-change:opacity,transform;
}
.reveal.in{opacity:1;transform:none}

/* Stagger for grids */
.grid .reveal:nth-child(1){transition-delay:.04s}
.grid .reveal:nth-child(2){transition-delay:.1s}
.grid .reveal:nth-child(3){transition-delay:.16s}
.grid .reveal:nth-child(4){transition-delay:.22s}
.article-list .reveal:nth-child(2n){transition-delay:.08s}
.article-list .reveal:nth-child(3n){transition-delay:.14s}

/* ============ Focus Visible ============ */
a:focus-visible,
button:focus-visible,
input:focus-visible{
  outline:2px solid var(--pri2);
  outline-offset:3px;
  border-radius:6px;
}

/* ============ Reduced Motion ============ */
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important}
  html{scroll-behavior:auto}
  .reveal{opacity:1;transform:none}
}

/* ============ Tablet ============ */
@media (max-width:1024px){
  .nav{gap:16px;height:64px}
  .nav-links{gap:2px;font-size:13.5px}
  .nav-links a{padding:7px 9px}
  .search-box input{width:130px}
  .search-box input:focus{width:150px}
  .slide-txt h2{font-size:30px}
  .slide .wrap{gap:32px}
  .slide-art{flex:0 0 230px}
  .banner{height:400px}
  .sec-head h2{font-size:26px}
}

/* ============ Mobile Large ============ */
@media (max-width:900px){
  .g3,.g4,.g2,.article-list,.contact-grid,.foot-grid,.stats{
    grid-template-columns:1fr 1fr;
  }
  .nav-links{
    display:none;
    flex-direction:column;
    gap:4px;
    position:absolute;
    top:64px;
    left:0;right:0;
    background:var(--glass);
    backdrop-filter:blur(20px) saturate(160%);
    -webkit-backdrop-filter:blur(20px) saturate(160%);
    padding:16px 22px 20px;
    border-bottom:1px solid var(--line);
    box-shadow:0 18px 40px rgba(0,0,0,.4);
    animation:dropIn .3s ease;
  }
  .nav-links a{padding:10px 14px;border-radius:10px;font-size:15px}
  .nav-links a::after{display:none}
  .menu-btn{display:flex}
  .search-box input{width:120px}
  .search-box input:focus{width:140px}
  .slide-art{display:none}
  .slide-txt{max-width:100%}
  .slide-txt h2{font-size:27px}
  .slide-txt p{font-size:15px}
  .banner{height:360px}
  .steps::before{left:22px}
  .foot-grid{gap:26px}
}

@keyframes dropIn{
  0%{opacity:0;transform:translateY(-12px)}
  100%{opacity:1;transform:translateY(0)}
}

/* ============ Mobile Small ============ */
@media (max-width:600px){
  body{font-size:15px;line-height:1.8}
  .wrap{padding:0 16px}
  .g3,.g4,.g2,.article-list,.contact-grid,.foot-grid,.stats{
    grid-template-columns:1fr;
  }
  .nav{gap:10px;height:60px}
  .logo{font-size:18px}
  .logo svg{width:32px;height:32px}
  .nav-links{top:60px}
  .search-box{display:none}
  .icon-btn{width:38px;height:38px}
  .banner{height:auto;min-height:420px;padding:40px 0 60px}
  .slide{position:relative;display:none;padding:20px 0}
  .slide.on{display:block;animation:fadeUp .6s ease}
  .slide .wrap{display:block}
  .slide-txt h2{font-size:23px;line-height:1.35}
  .slide-txt p{font-size:14.5px;margin-bottom:18px}
  .btn{padding:11px 24px;font-size:14px}
  .dots{bottom:16px}
  section{padding:44px 0}
  .sec-head{margin-bottom:30px}
  .sec-head h2{font-size:22px;padding-bottom:12px}
  .sec-head p{font-size:14px}
  .card{padding:22px}
  .card h3{font-size:16.5px}
  .card p{font-size:14px}
  .art{padding:20px}
  .art h3{font-size:16px}
  .faq-q{padding:15px 18px;font-size:14.5px}
  .faq-a{padding:0 18px}
  .faq-item.open .faq-a{padding:0 18px 18px}
  .step{gap:14px}
  .step-num{flex:0 0 40px;height:40px;font-size:16px}
  .steps::before{left:19px}
  .step-body{padding:14px 16px}
  .step-body h3{font-size:15.5px}
  .stat-num{font-size:32px}
  .stats > div{padding:22px 14px}
  .author-box{flex-direction:column;text-align:center;padding:20px}
  .foot-grid{grid-template-columns:1fr;gap:24px}
  .foot-bottom{font-size:12px}
  #top{right:16px;bottom:20px;width:44px;height:44px}
}

@keyframes fadeUp{
  0%{opacity:0;transform:translateY(16px)}
  100%{opacity:1;transform:translateY(0)}
}

/* ============ Extra Small ============ */
@media (max-width:380px){
  .logo{font-size:16px}
  .logo svg{width:28px;height:28px}
  .slide-txt h2{font-size:20px}
  .sec-head h2{font-size:20px}
  .card{padding:18px}
}

/* ============ Print ============ */
@media print{
  header,#top,.dots,.banner,.nav-tools{display:none!important}
  body{background:#fff;color:#000}
  .card,.art,.faq-item{border:1px solid #ccc;box-shadow:none;background:#fff}
  .reveal{opacity:1;transform:none}
  a{color:#000;text-decoration:underline}
}