:root {
  --z7-bg: #08101f;
  --z7-panel: #101a2d;
  --z7-blue: #1d6ee8;
  --z7-blue-2: #0cc0ff;
  --z7-gold: #f6c557;
  --z7-gold-2: #ffe68f;
  --z7-red: #d7192b;
  --z7-ink: #0f1728;
  --z7-muted: #657186;
  --z7-soft: #f3f7ff;
  --z7-line: #dbe5f7;
  --z7-radius: 8px;
  --z7-shadow: 0 18px 42px rgba(8, 16, 31, .16);
}
* { box-sizing: border-box; }
html { width: 100%; overflow-x: hidden; scroll-behavior: smooth; }
body.z7-page { margin: 0; width: 100%; min-width: 0; overflow-x: hidden; color: var(--z7-ink); background: var(--z7-soft); font-family: Inter, "Noto Sans Bengali", "Segoe UI", Arial, sans-serif; letter-spacing: 0; }
.z7-page a { color: inherit; text-decoration: none; }
.z7-page img { display: block; max-width: 100%; }
.z7-shell { width: min(1160px, calc(100% - 32px)); margin: 0 auto; }
.z7-header { background: linear-gradient(180deg, #070d19, #0d1830); color: #fff; box-shadow: 0 10px 26px rgba(8,16,31,.22); }
.z7-brandbar { min-height: 82px; display: flex; align-items: center; justify-content: space-between; gap: 18px; }
.z7-logo { display: inline-flex; align-items: center; gap: 12px; font-weight: 950; color: #fff; }
.z7-logo span:first-child { width: 54px; height: 54px; display: grid; place-items: center; border-radius: var(--z7-radius); background: linear-gradient(145deg, var(--z7-gold-2), #c68921); color: #071225; box-shadow: 0 14px 30px rgba(246,197,87,.28); }
.z7-logo span:last-child { display: block; font-size: 29px; line-height: .95; color: #fff; }
.z7-logo small { display: block; margin-top: 5px; color: #85c8ff; font-size: 12px; font-weight: 850; text-transform: uppercase; }
.z7-actions { display: flex; flex-wrap: wrap; gap: 10px; }
.z7-btn { min-height: 42px; display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 0 18px; border-radius: var(--z7-radius); border: 1px solid rgba(255,255,255,.2); font-size: 14px; line-height: 1.1; font-weight: 900; text-align: center; white-space: nowrap; }
.z7-btn-gold { background: linear-gradient(180deg, #ffe58f, #f2b739); color: #1d1200; border-color: transparent; box-shadow: 0 12px 24px rgba(246,197,87,.25); }
.z7-btn-blue { background: linear-gradient(180deg, #2590ff, #165ed3); color: #fff; border-color: transparent; box-shadow: 0 12px 24px rgba(29,110,232,.22); }
.z7-btn-dark { background: rgba(255,255,255,.08); color: #fff; }
.z7-page .z7-btn-gold { color: #1d1200; }
.z7-page .z7-btn-blue, .z7-page .z7-btn-dark { color: #fff; }
.z7-navwrap { background: rgba(255,255,255,.06); border-top: 1px solid rgba(255,255,255,.08); }
.z7-nav { min-height: 52px; display: flex; align-items: center; justify-content: center; flex-wrap: wrap; gap: 10px 22px; color: #d8e8ff; font-size: 14px; font-weight: 900; }
.z7-nav a { padding: 8px 0; }
.z7-nav a:hover, .z7-nav a.is-active { color: var(--z7-gold); }
.z7-hero { background: radial-gradient(circle at 78% 18%, rgba(29,110,232,.3), transparent 28%), linear-gradient(135deg, #08101f 0%, #0b1933 52%, #153d78 100%); color: #fff; }
.z7-hero-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(310px, 520px); gap: 34px; align-items: center; min-height: 570px; padding: 58px 0; }
.z7-hero h1 { margin: 0; max-width: 760px; font-size: clamp(38px, 5.5vw, 66px); line-height: 1.03; font-weight: 950; }
.z7-hero h1 strong { color: var(--z7-gold-2); }
.z7-hero p { max-width: 650px; margin: 20px 0 0; color: #d9e8ff; font-size: 18px; line-height: 1.65; font-weight: 680; }
.z7-hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
.z7-hero-media img { width: 100%; min-height: 330px; object-fit: cover; object-position: right center; border-radius: var(--z7-radius); box-shadow: 0 24px 70px rgba(0,0,0,.34); }
.z7-section { padding: 64px 0; }
.z7-section-title { margin: 0 0 18px; font-size: clamp(30px, 4.2vw, 46px); line-height: 1.12; font-weight: 950; }
.z7-lead { max-width: 960px; margin: 0 auto 24px; color: var(--z7-muted); font-size: 17px; line-height: 1.74; font-weight: 680; text-align: center; }
.z7-feature-grid { display: grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap: 16px; }
.z7-card, .z7-feature, .z7-step, .z7-news-card, .z7-article-card, .z7-side-card { border: 1px solid var(--z7-line); border-radius: var(--z7-radius); background: #fff; box-shadow: var(--z7-shadow); }
.z7-feature { min-height: 210px; padding: 22px; }
.z7-icon { width: 46px; height: 46px; display: grid; place-items: center; border-radius: 50%; background: #e9f3ff; color: var(--z7-blue); font-weight: 950; }
.z7-feature h3, .z7-step h3, .z7-news-card h3 { margin: 18px 0 8px; font-size: 22px; line-height: 1.24; font-weight: 950; }
.z7-feature p, .z7-step p, .z7-news-card p { margin: 0; color: var(--z7-muted); line-height: 1.62; font-weight: 650; }
.z7-cat-strip { display: grid; grid-template-columns: repeat(6, minmax(0,1fr)); gap: 12px; margin-top: 24px; }
.z7-cat { min-height: 92px; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 8px; border-radius: var(--z7-radius); background: linear-gradient(180deg, #101a2d, #0b1325); color: #fff; border: 1px solid rgba(246,197,87,.22); box-shadow: var(--z7-shadow); font-weight: 900; }
.z7-cat i { width: 36px; height: 36px; display: grid; place-items: center; border-radius: 50%; background: var(--z7-gold); color: #08101f; font-style: normal; font-weight: 950; }
.z7-dark { background: linear-gradient(180deg, #08101f, #111b2e); color: #fff; }
.z7-dark .z7-section-title, .z7-dark h3 { color: #fff; }
.z7-dark p { color: #d9e8ff; }
.z7-brand-grid { display: grid; grid-template-columns: minmax(300px, .95fr) minmax(0, 1.05fr); gap: 30px; align-items: center; }
.z7-image-frame { overflow: hidden; border-radius: var(--z7-radius); border: 1px solid rgba(246,197,87,.2); background: #0b1325; box-shadow: var(--z7-shadow); }
.z7-image-frame img { width: 100%; height: 420px; object-fit: cover; }
.z7-point-list { display: grid; gap: 14px; }
.z7-point-list article { padding: 18px; border-radius: var(--z7-radius); background: rgba(255,255,255,.08); border: 1px solid rgba(255,255,255,.12); }
.z7-step-card { padding: 28px; }
.z7-step-row { display: grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap: 16px; }
.z7-step { min-height: 184px; padding: 20px; position: relative; overflow: hidden; }
.z7-num { display: block; color: var(--z7-blue); font-size: 42px; line-height: 1; margin-bottom: 14px; font-weight: 950; }
.z7-news-grid { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 16px; }
.z7-news-card { overflow: hidden; }
.z7-news-card img { width: 100%; height: 182px; object-fit: cover; }
.z7-news-body { padding: 18px; }
.z7-date { color: var(--z7-blue); font-size: 12px; font-weight: 950; }
.z7-center { text-align: center; }
.z7-footer { background: #07101f; color: #d6e8ff; padding: 36px 0 0; }
.z7-footer-grid { display: grid; grid-template-columns: 1.35fr .8fr .8fr 1fr; gap: 24px; }
.z7-footer h3 { margin: 0 0 12px; color: var(--z7-gold-2); font-size: 20px; font-weight: 950; }
.z7-footer p, .z7-footer a, .z7-footer li { color: #b8d0ee; line-height: 1.7; font-weight: 650; }
.z7-footer ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; }
.z7-copy { margin-top: 28px; padding: 16px 0; border-top: 1px solid rgba(255,255,255,.12); color: #8aa6c8; font-size: 13px; font-weight: 750; text-align: center; }
.z7-page-hero { background: linear-gradient(135deg, #08101f, #153d78); color: #fff; }
.z7-page-hero-grid { display: grid; grid-template-columns: minmax(0,1fr) minmax(280px,430px); gap: 30px; align-items: center; padding: 58px 0; }
.z7-page-hero h1 { margin: 0; font-size: clamp(34px,4.8vw,58px); line-height: 1.06; font-weight: 950; }
.z7-page-hero p { color: #d9e8ff; line-height: 1.68; font-size: 17px; font-weight: 680; }
.z7-page-hero img { width: 100%; min-height: 292px; object-fit: cover; border-radius: var(--z7-radius); box-shadow: 0 24px 60px rgba(0,0,0,.26); }
.z7-page-layout, .z7-article-layout { display: grid; grid-template-columns: minmax(0,1fr) 315px; gap: 22px; padding: 42px 0; }
.z7-article-card { padding: 30px; }
.z7-article-card h1 { margin: 0; font-size: clamp(30px,4.4vw,48px); line-height: 1.14; font-weight: 950; }
.z7-meta { display: flex; flex-wrap: wrap; gap: 12px; color: #7b879a; font-size: 13px; font-weight: 750; margin: 14px 0 22px; }
.z7-body { color: #263348; line-height: 1.9; font-weight: 650; }
.z7-point-grid { display: grid; gap: 14px; margin-top: 22px; }
.z7-point { border: 1px solid var(--z7-line); border-radius: var(--z7-radius); padding: 18px; background: #fbfdff; }
.z7-point h3 { margin: 0 0 8px; font-size: 20px; font-weight: 950; }
.z7-point p { margin: 0; color: var(--z7-muted); line-height: 1.68; }
.z7-side-card { padding: 20px; margin-bottom: 16px; overflow: hidden; }
.z7-side-card img { width: calc(100% + 40px); max-width: calc(100% + 40px); height: 178px; object-fit: cover; margin: -20px -20px 16px; }
.z7-side-card h3 { margin: 0 0 12px; font-size: 20px; font-weight: 950; }
.z7-side-card ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.z7-side-card li { border-top: 1px solid var(--z7-line); padding-top: 10px; color: #2d3a50; font-weight: 760; line-height: 1.5; }
.z7-side-card li:first-child { border-top: 0; padding-top: 0; }
.prenext { display: grid; gap: 10px; margin-top: 22px; }
@media (max-width: 1000px) {
  .z7-brandbar { flex-direction: column; align-items: flex-start; padding: 14px 0; }
  .z7-hero-grid, .z7-brand-grid, .z7-page-hero-grid, .z7-page-layout, .z7-article-layout { grid-template-columns: 1fr; }
  .z7-feature-grid, .z7-step-row, .z7-news-grid, .z7-footer-grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .z7-cat-strip { grid-template-columns: repeat(3, minmax(0,1fr)); }
}
@media (max-width: 640px) {
  .z7-shell { width: min(100% - 24px, 1160px); }
  .z7-actions { width: 100%; }
  .z7-actions .z7-btn { flex: 1; }
  .z7-nav { justify-content: flex-start; gap: 8px 16px; }
  .z7-hero-grid { min-height: 0; padding: 42px 0; }
  .z7-feature-grid, .z7-step-row, .z7-news-grid, .z7-footer-grid, .z7-cat-strip { grid-template-columns: 1fr; }
  .z7-image-frame img { height: 280px; }
  .z7-article-card { padding: 22px; }
}