*{margin:0;padding:0;box-sizing:border-box;font-family:"Segoe UI",system-ui,sans-serif}
body{background:#f7f9fc;color:#1f2937}
.container{width:90%;max-width:1000px;margin:auto}

/* HEADER */
.header{background:#fff;border-bottom:1px solid #e5e7eb;padding:16px 0}
.header-flex{display:flex;justify-content:space-between;align-items:center}
.logo{display:flex;gap:10px;font-weight:700;font-size:20px;align-items:center}
.logo img{width:40px}
nav a{margin-left:20px;text-decoration:none;color:#1f2937}
.btn-primary{background:linear-gradient(135deg,#1e88e5,#42a5f5);color:#fff;padding:10px 22px;border-radius:10px;text-decoration:none;font-weight:600}

/* HERO */
.hero{min-height:80vh;display:flex;justify-content:center;align-items:center;text-align:center;background:radial-gradient(circle at top,#eef5ff,#f7f9fc)}
.hero h1{font-size:52px}
.hero h2{font-size:30px;color:#1e88e5;margin:10px 0 20px}
.hero p{max-width:620px;margin:auto;font-size:17px;color:#4b5563;margin-bottom:28px}

/* COMMON */
.subtitle{text-align:center;color:#6b7280;margin:14px 0 60px}
.did-you-know,.monthly-returns{background:#fff;padding:110px 0}
.did-you-know h2,.monthly-returns h2{text-align:center;font-size:34px}

/* DID YOU KNOW STORY FEED */
.dyk-stack{display:flex;flex-direction:column;gap:60px;background:linear-gradient(135deg,#f8fbff,#fff);padding:70px;border-radius:36px;box-shadow:0 50px 120px rgba(30,136,229,.12);overflow:hidden}
.dyk-item{position:relative;padding-left:34px;opacity:0;transform:translateY(28px)}
.dyk-item::before{content:"";position:absolute;left:0;top:10px;width:6px;height:100%;border-radius:10px;background:linear-gradient(to bottom,#1e88e5,#42a5f5)}
.dyk-item h3{color:#1e88e5;font-size:24px;margin-bottom:14px}
.dyk-item p{font-size:17px;line-height:1.8;color:#374151}
.dyk-meta{margin-top:22px;display:flex;justify-content:space-between;font-size:14px;color:#6b7280;border-top:1px solid #e5e7eb;padding-top:14px}
.dyk-item.show{animation:storyFadeUp 1.2s cubic-bezier(.22,1,.36,1) forwards}
@keyframes storyFadeUp{from{opacity:0;transform:translateY(28px)}to{opacity:1;transform:translateY(0)}}

/* MONTHLY RETURNS */
.returns-list{display:flex;flex-direction:column;gap:26px}
.return-card{
  background:linear-gradient(135deg,#f8fbff,#ffffff);
  border-radius:26px;
  box-shadow:0 35px 90px rgba(30,136,229,.10);
  padding:28px 30px;
  overflow:hidden;
  border:1px solid #e7eef8;
  animation:fadeUp 1s ease forwards;
}
@keyframes fadeUp{from{opacity:0;transform:translateY(24px)}to{opacity:1;transform:translateY(0)}}

.return-top{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;align-items:flex-start}
.return-title{font-size:22px;color:#1e88e5;font-weight:700}
.return-deadline{font-size:13px;color:#6b7280;background:#fff;border:1px solid #e5e7eb;padding:6px 10px;border-radius:999px}

.lang-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:14px}
.lang-box{background:#fff;border:1px solid #e5e7eb;border-radius:18px;padding:14px 16px}
.lang-label{font-size:12px;color:#6b7280;margin-bottom:8px;font-weight:700;letter-spacing:.3px}
.lang-text{font-size:15.5px;line-height:1.75;color:#374151}

/* See more */
.return-actions{margin-top:14px;display:flex;justify-content:flex-end}
.see-more{
  border:none;
  background:transparent;
  color:#1e88e5;
  font-weight:700;
  cursor:pointer;
  padding:8px 6px;
}
.keypoints{
  margin-top:14px;
  display:none;
  background:#ffffff;
  border:1px dashed #dbeafe;
  border-radius:18px;
  padding:14px 16px;
}
.keypoints.open{display:block}
.keypoints h4{font-size:14px;color:#1f2937;margin-bottom:10px}
.keypoints-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.keypoints ul{padding-left:18px}
.keypoints li{margin:8px 0;color:#374151;line-height:1.6}

/* Mobile */
@media(max-width:900px){
  .lang-grid,.keypoints-grid{grid-template-columns:1fr}
  .dyk-stack{padding:40px}
}