/* dw-binance.com — GreenX · Headspace-style · grass-green + white */
:root {
  --g0: #f0fdf4;   /* lightest mint bg */
  --g1: #dcfce7;   /* section bg */
  --g2: #4ade80;   /* medium green accent */
  --g3: #22c55e;   /* primary green */
  --g4: #16a34a;   /* darker green */
  --g5: #15803d;   /* deep green */
  --y1: #fef9c3;   /* lemon yellow accent */
  --y2: #fde047;   /* yellow highlight */
  --wh: #ffffff;
  --gray0: #f8fafc;
  --gray1: #f1f5f9;
  --gray2: #e2e8f0;
  --gray3: #94a3b8;
  --gray4: #475569;
  --gray5: #1e293b;
  --font: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', Arial, sans-serif;
  --radius: 20px;
  --radius-sm: 12px;
  --shadow: 0 4px 24px rgba(34,197,94,0.12);
  --shadow-lg: 0 12px 48px rgba(34,197,94,0.18);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; scroll-behavior: smooth; }
body { font-family: var(--font); background: var(--wh); color: var(--gray5); line-height: 1.6; overflow-x: hidden; }
img, svg { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { cursor: pointer; font-family: var(--font); }

/* ── Container ─────────────────────────────── */
.container { max-width: 1160px; margin: 0 auto; padding: 0 28px; }

/* ── Nav ────────────────────────────────────── */
.site-nav {
  position: sticky; top: 0; z-index: 100;
  background: var(--wh);
  border-bottom: 1px solid var(--gray2);
  padding: 0 28px;
}
.nav-inner {
  max-width: 1160px; margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between;
  height: 64px; gap: 20px;
}
.nav-logo { display: flex; align-items: center; gap: 10px; }
.nav-logo-icon {
  width: 36px; height: 36px; border-radius: 10px;
  background: var(--g3); display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.nav-logo-name { font-size: 1.15rem; font-weight: 800; color: var(--g5); letter-spacing: -0.3px; }
.nav-logo-name span { color: var(--g3); }
.nav-links { display: flex; gap: 28px; }
.nav-links a { font-size: 0.92rem; font-weight: 500; color: var(--gray4); transition: color .2s; }
.nav-links a:hover { color: var(--g4); }
.nav-cta { display: flex; gap: 10px; }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  padding: 10px 22px; border-radius: 50px; font-size: 0.9rem; font-weight: 700;
  border: none; transition: all .2s; min-height: 44px; }
.btn-outline { background: transparent; border: 2px solid var(--g3); color: var(--g4); }
.btn-outline:hover { background: var(--g1); }
.btn-green { background: var(--g3); color: var(--wh); }
.btn-green:hover { background: var(--g4); box-shadow: 0 4px 14px rgba(22,163,74,0.35); }
.btn-lg { padding: 14px 32px; font-size: 1rem; border-radius: 50px; min-height: 52px; }
.btn-xl { padding: 16px 40px; font-size: 1.08rem; border-radius: 50px; min-height: 56px; }

/* ── Hero ────────────────────────────────────── */
.hero {
  background: linear-gradient(135deg, var(--g0) 0%, var(--wh) 60%);
  padding: 80px 0 60px;
  position: relative; overflow: hidden;
}
.hero-inner {
  max-width: 1160px; margin: 0 auto; padding: 0 28px;
  display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center;
}
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--g1); color: var(--g5); border-radius: 50px;
  padding: 6px 16px; font-size: 0.82rem; font-weight: 600; margin-bottom: 20px;
}
.hero-badge-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--g3); flex-shrink: 0; }
.hero h1 { font-size: 3rem; font-weight: 900; line-height: 1.12; letter-spacing: -1px; color: var(--gray5); margin-bottom: 20px; }
.hero h1 em { font-style: normal; color: var(--g4); }
.hero-desc { font-size: 1.1rem; color: var(--gray4); line-height: 1.7; margin-bottom: 32px; max-width: 480px; }
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; }
.hero-stats { display: flex; gap: 28px; margin-top: 36px; flex-wrap: wrap; }
.hero-stat-item { display: flex; flex-direction: column; }
.hero-stat-num { font-size: 1.5rem; font-weight: 900; color: var(--g4); }
.hero-stat-label { font-size: 0.78rem; color: var(--gray3); font-weight: 500; margin-top: 2px; }
.hero-visual { position: relative; }
.hero-card-wrap {
  background: var(--wh); border-radius: 28px; padding: 32px;
  box-shadow: var(--shadow-lg); position: relative;
}
.hero-chart-bars { display: flex; gap: 8px; align-items: flex-end; height: 120px; margin-bottom: 20px; }
.hbar { border-radius: 8px 8px 0 0; flex: 1; background: var(--g1); transition: all .3s; }
.hbar.active { background: var(--g3); }
.hbar:hover { background: var(--g4); }
.hero-ticker-list { display: flex; flex-direction: column; gap: 10px; }
.ticker-row {
  display: flex; align-items: center; justify-content: space-between;
  padding: 10px 14px; border-radius: 12px; background: var(--gray0);
}
.ticker-name { font-weight: 700; font-size: 0.9rem; }
.ticker-price { font-weight: 600; font-size: 0.88rem; color: var(--gray4); }
.ticker-change { font-size: 0.8rem; font-weight: 700; padding: 2px 8px; border-radius: 50px; }
.ticker-change.up { background: var(--g1); color: var(--g4); }
.ticker-change.dn { background: #fee2e2; color: #dc2626; }

/* ── Trust Band ──────────────────────────────── */
.trust-band { background: var(--g3); padding: 18px 0; }
.trust-band-inner {
  max-width: 1160px; margin: 0 auto; padding: 0 28px;
  display: flex; gap: 40px; align-items: center; justify-content: center; flex-wrap: wrap;
}
.trust-item { display: flex; align-items: center; gap: 8px; color: var(--wh); font-size: 0.88rem; font-weight: 600; }
.trust-icon { font-size: 1.1rem; }

/* ── Section shared ──────────────────────────── */
section { padding: 80px 0; }
.section-label {
  display: inline-block; background: var(--g1); color: var(--g5);
  font-size: 0.75rem; font-weight: 700; letter-spacing: 1px; text-transform: uppercase;
  padding: 5px 14px; border-radius: 50px; margin-bottom: 12px;
}
.section-title { font-size: 2.2rem; font-weight: 900; letter-spacing: -0.5px; color: var(--gray5); margin-bottom: 14px; }
.section-title span { color: var(--g4); }
.section-sub { font-size: 1.05rem; color: var(--gray4); max-width: 560px; line-height: 1.7; }
.section-head { margin-bottom: 52px; }

/* ── Feature Cards ────────────────────────────── */
.features { background: var(--gray0); }
.cards-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px;
}
.feat-card {
  background: var(--wh); border-radius: var(--radius); padding: 32px 28px;
  box-shadow: 0 2px 12px rgba(0,0,0,0.06); transition: all .25s;
  border: 1.5px solid var(--gray2);
}
.feat-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: var(--g2); }
.feat-icon-wrap {
  width: 52px; height: 52px; border-radius: 14px;
  display: flex; align-items: center; justify-content: center; margin-bottom: 18px;
}
.feat-icon-wrap.green { background: var(--g1); }
.feat-icon-wrap.yellow { background: var(--y1); }
.feat-icon-wrap.blue { background: #e0f2fe; }
.feat-card h3 { font-size: 1.08rem; font-weight: 800; color: var(--gray5); margin-bottom: 10px; }
.feat-card p { font-size: 0.9rem; color: var(--gray4); line-height: 1.65; }

/* ── Stats Strip ──────────────────────────────── */
.stats-strip { background: var(--g4); padding: 60px 0; }
.stats-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; text-align: center;
}
.stat-block { color: var(--wh); }
.stat-num { font-size: 2.4rem; font-weight: 900; letter-spacing: -1px; line-height: 1; margin-bottom: 8px; }
.stat-desc { font-size: 0.88rem; font-weight: 500; opacity: .8; }

/* ── Download Section ─────────────────────────── */
.download { background: var(--wh); }
.dl-split { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.dl-desc { font-size: 1rem; color: var(--gray4); line-height: 1.7; margin-bottom: 28px; }
.dl-cards { display: flex; flex-direction: column; gap: 14px; }
.dl-card {
  display: flex; align-items: center; gap: 16px;
  background: var(--gray0); border-radius: var(--radius-sm); padding: 18px 22px;
  border: 1.5px solid var(--gray2); transition: all .2s; cursor: pointer;
}
.dl-card:hover { border-color: var(--g3); background: var(--g0); }
.dl-card-icon {
  width: 44px; height: 44px; border-radius: 12px;
  background: var(--g3); display: flex; align-items: center; justify-content: center; flex-shrink: 0;
}
.dl-card-info h4 { font-size: 0.95rem; font-weight: 700; color: var(--gray5); }
.dl-card-info p { font-size: 0.8rem; color: var(--gray3); margin-top: 2px; }
.dl-visual {
  background: linear-gradient(145deg, var(--g0) 0%, var(--g1) 100%);
  border-radius: 28px; padding: 40px 32px; text-align: center;
}
.phone-mockup { max-width: 220px; margin: 0 auto; }

/* ── Why Choose ──────────────────────────────── */
.why { background: var(--g0); }
.why-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.why-card {
  background: var(--wh); border-radius: var(--radius); padding: 28px 26px;
  border: 1.5px solid var(--gray2); display: flex; gap: 16px; align-items: flex-start;
}
.why-card:hover { border-color: var(--g2); }
.why-check {
  width: 36px; height: 36px; border-radius: 10px; background: var(--g1);
  display: flex; align-items: center; justify-content: center; flex-shrink: 0; margin-top: 2px;
}
.why-card h4 { font-size: 1rem; font-weight: 800; color: var(--gray5); margin-bottom: 6px; }
.why-card p { font-size: 0.88rem; color: var(--gray4); line-height: 1.65; }

/* ── FAQ ─────────────────────────────────────── */
.faq { background: var(--wh); }
.faq-list { display: flex; flex-direction: column; gap: 12px; max-width: 780px; margin: 0 auto; }
.faq-item {
  border: 1.5px solid var(--gray2); border-radius: var(--radius-sm); overflow: hidden;
}
.faq-q {
  width: 100%; background: transparent; border: none; text-align: left;
  padding: 20px 24px; font-size: 0.98rem; font-weight: 700; color: var(--gray5);
  cursor: pointer; display: flex; justify-content: space-between; align-items: center; gap: 12px;
  transition: background .2s;
}
.faq-q:hover { background: var(--g0); }
.faq-arrow {
  width: 22px; height: 22px; border-radius: 50%; background: var(--g1);
  display: flex; align-items: center; justify-content: center; flex-shrink: 0;
  transition: transform .25s;
}
.faq-item.open .faq-arrow { transform: rotate(180deg); }
.faq-a {
  max-height: 0; overflow: hidden; transition: max-height .3s ease, padding .3s ease;
  padding: 0 24px; font-size: 0.9rem; color: var(--gray4); line-height: 1.7;
}
.faq-item.open .faq-a { max-height: 240px; padding: 0 24px 20px; }

/* ── CTA Footer Banner ───────────────────────── */
.cta-banner {
  background: linear-gradient(135deg, var(--g3) 0%, var(--g4) 100%);
  padding: 72px 0; text-align: center;
}
.cta-banner h2 { font-size: 2.4rem; font-weight: 900; color: var(--wh); margin-bottom: 14px; letter-spacing: -0.5px; }
.cta-banner p { font-size: 1.05rem; color: rgba(255,255,255,0.85); margin-bottom: 36px; }
.cta-actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }
.btn-white { background: var(--wh); color: var(--g4); }
.btn-white:hover { background: var(--g0); }
.btn-ghost { background: transparent; border: 2px solid rgba(255,255,255,0.6); color: var(--wh); }
.btn-ghost:hover { background: rgba(255,255,255,0.15); }

/* ── Footer ──────────────────────────────────── */
.site-footer { background: var(--gray5); color: var(--wh); padding: 48px 0 28px; }
.footer-inner {
  max-width: 1160px; margin: 0 auto; padding: 0 28px;
  display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px;
}
.footer-brand p { font-size: 0.88rem; color: var(--gray3); line-height: 1.65; margin-top: 12px; max-width: 280px; }
.footer-col h4 { font-size: 0.82rem; font-weight: 700; text-transform: uppercase; letter-spacing: 1px; color: var(--gray3); margin-bottom: 14px; }
.footer-col a { display: block; font-size: 0.88rem; color: var(--gray3); margin-bottom: 8px; transition: color .2s; }
.footer-col a:hover { color: var(--g2); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08); margin-top: 36px; padding-top: 24px;
  display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 12px;
  font-size: 0.8rem; color: var(--gray3);
}
.footer-logo-name { font-size: 1rem; font-weight: 800; color: var(--wh); }
.footer-logo-name span { color: var(--g2); }

/* ── Responsive ──────────────────────────────── */
@media (max-width: 900px) {
  .hero-inner { grid-template-columns: 1fr; gap: 40px; }
  .hero h1 { font-size: 2.2rem; }
  .hero-visual { max-width: 460px; margin: 0 auto; }
  .cards-grid { grid-template-columns: repeat(2, 1fr); }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .dl-split { grid-template-columns: 1fr; }
  .why-grid { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr 1fr; gap: 28px; }
  .nav-links { display: none; }
}
@media (max-width: 600px) {
  .container, .hero-inner, .trust-band-inner, .footer-inner { padding: 0 18px; }
  .hero { padding: 56px 0 44px; }
  .hero h1 { font-size: 1.75rem; letter-spacing: -0.5px; }
  .hero-desc { font-size: 0.97rem; }
  .section-title { font-size: 1.65rem; }
  .cards-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .footer-inner { grid-template-columns: 1fr; }
  .cta-banner h2 { font-size: 1.65rem; }
  .hero-stats { gap: 18px; }
  .stat-num { font-size: 2rem; }
  .why-grid { grid-template-columns: 1fr; }
  section { padding: 56px 0; }
  .trust-band-inner { gap: 20px; }
}
@media (max-width: 390px) {
  body { overflow-wrap: break-word; word-break: break-word; }
  .hero h1 { font-size: 1.55rem; }
  .btn-xl { padding: 14px 26px; font-size: 0.95rem; }
}