:root {
  --blue: #1e88e5;
  --blue-dark: #1565c0;
  --blue-light: #42a5f5;
  --dark: #0d1b2a;
  --gray: #5b7085;
  --light: #f4f8fc;
  --white: #ffffff;
  --green: #16a34a;
  --radius: 14px;
  --shadow: 0 10px 30px rgba(13, 27, 42, 0.10);
  --shadow-lg: 0 20px 50px rgba(13, 27, 42, 0.16);
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Segoe UI', system-ui, -apple-system, Roboto, sans-serif;
  color: var(--dark); background: var(--white);
  line-height: 1.6; -webkit-font-smoothing: antialiased;
}
.container { max-width: 1140px; margin: 0 auto; padding: 0 22px; }
img { max-width: 100%; }
h1, h2, h3 { line-height: 1.15; font-weight: 800; letter-spacing: -0.02em; }
h1 { font-size: clamp(2rem, 4.5vw, 3.1rem); }
h2 { font-size: clamp(1.6rem, 3.5vw, 2.2rem); text-align: center; }
h3 { font-size: 1.1rem; }
.section-sub { text-align: center; color: var(--gray); max-width: 620px; margin: 10px auto 40px; font-size: 1.02rem; }

.dlbar {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 60;
  background: var(--dark); color: #fff;
  box-shadow: 0 -8px 26px rgba(13,27,42,.3);
}
.dlbar-inner { display: flex; align-items: center; justify-content: space-between; height: 58px; }
.dlbar-name { font-weight: 700; font-size: .92rem; }
.dlbar-name em { font-style: normal; color: #9fb3c8; font-weight: 500; margin-left: 8px; }
.dlbar-btn {
  background: var(--green); color: #fff; text-decoration: none;
  font-weight: 800; font-size: .95rem; padding: 10px 22px; border-radius: 999px;
  transition: transform .15s, box-shadow .15s;
}
.dlbar-btn:hover { transform: translateY(-1px); box-shadow: 0 8px 18px rgba(22,163,74,.4); }

.topbar { background: #fff; border-bottom: 1px solid #e8eef5; }
.topbar-inner { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.logo { display: flex; align-items: center; gap: 10px; text-decoration: none; }
.logo img { border-radius: 9px; }
.logo-text { font-weight: 800; font-size: 1.2rem; color: var(--dark); }
.logo-text em { color: var(--blue); font-style: normal; }
.nav { display: flex; align-items: center; gap: 24px; }
.nav a { color: var(--gray); text-decoration: none; font-weight: 600; font-size: .93rem; }
.nav a:hover { color: var(--blue); }

.hero {
  background:
    radial-gradient(1000px 460px at 50% 0%, rgba(30,136,229,.14), transparent 60%),
    linear-gradient(180deg, #fff 0%, var(--light) 100%);
  padding: 66px 0 80px; text-align: center;
}
.hero-badge {
  display: inline-block; background: #fff; border: 1px solid #cfe2f5;
  color: var(--blue-dark); font-weight: 700; font-size: .82rem;
  padding: 7px 15px; border-radius: 999px; margin-bottom: 20px;
}
.hero h1 { max-width: 840px; margin: 0 auto 16px; }
.hl { color: var(--blue); }
.hero-sub { max-width: 640px; margin: 0 auto 30px; color: var(--gray); font-size: 1.1rem; }
.btn-dl {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  background: linear-gradient(180deg, var(--blue-light), var(--blue));
  color: #fff; text-decoration: none; font-weight: 800;
  padding: 17px 34px; border-radius: 12px; font-size: 1.15rem;
  box-shadow: 0 14px 30px rgba(30,136,229,.4);
  transition: transform .15s, box-shadow .15s;
}
.btn-dl:hover { transform: translateY(-2px); box-shadow: 0 18px 38px rgba(30,136,229,.48); }
.hero-meta { margin-top: 16px; color: var(--gray); font-size: .92rem; }
.hero-meta-item { margin: 0 8px; }
.hero-meta strong { color: var(--dark); }
.hero-proof { display: flex; justify-content: center; gap: 44px; margin-top: 38px; flex-wrap: wrap; }
.proof-item { display: flex; flex-direction: column; }
.proof-item strong { font-size: 1.4rem; color: var(--blue-dark); font-weight: 800; }
.proof-item span { color: var(--gray); font-size: .85rem; }

.included { padding: 80px 0; background: #fff; }
.included-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; max-width: 900px; margin: 0 auto 22px; }
.included-card {
  background: var(--light); border: 1px solid #e8eef5; border-radius: var(--radius);
  padding: 28px 26px;
}
.included-icon { font-size: 2rem; margin-bottom: 12px; }
.included-card h3 { margin-bottom: 6px; }
.included-file {
  font-family: 'Cascadia Code', 'Courier New', monospace;
  font-size: .82rem; color: var(--blue-dark); background: #fff;
  border: 1px solid #dbe7f3; border-radius: 7px; padding: 3px 10px;
  display: inline-block; margin-bottom: 10px;
}
.included-card p:last-child { color: var(--gray); font-size: .93rem; }
.included-note {
  max-width: 900px; margin: 0 auto; background: #ecfdf5; border: 1px solid #a7f3d0;
  border-radius: 12px; padding: 16px 20px; color: #065f46; font-size: .94rem;
}
.included-note strong { color: #047857; }

.steps { padding: 80px 0; background: var(--light); }
.steps-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.step-card {
  background: #fff; border: 1px solid #e8eef5; border-radius: var(--radius);
  padding: 28px 24px; box-shadow: var(--shadow);
}
.step-num {
  width: 40px; height: 40px; border-radius: 50%;
  background: var(--blue); color: #fff; font-weight: 800; font-size: 1.15rem;
  display: flex; align-items: center; justify-content: center; margin-bottom: 14px;
  box-shadow: 0 8px 18px rgba(30,136,229,.32);
}
.step-card h3 { margin-bottom: 7px; }
.step-card p { color: var(--gray); font-size: .92rem; }

.compare { padding: 80px 0; }
.compare-table { max-width: 760px; margin: 0 auto; border: 1px solid #e8eef5; border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); }
.compare-row { display: grid; grid-template-columns: 1.4fr 1fr 1fr; }
.compare-row > span { padding: 13px 18px; font-size: .95rem; border-bottom: 1px solid #eef2f7; }
.compare-row:last-child > span { border-bottom: none; }
.compare-head > span { background: var(--dark); color: #fff; font-weight: 700; }
.compare-row span:nth-child(2) { text-align: center; }
.compare-row span:nth-child(3) { text-align: center; font-weight: 700; }
.compare-row .no { color: #dc2626; }
.compare-row .yes { color: var(--green); }

.faq { padding: 80px 0; background: var(--light); }
.faq-list { max-width: 760px; margin: 0 auto; }
.faq-item {
  background: #fff; border: 1px solid #e8eef5; border-radius: 12px;
  margin-bottom: 11px; overflow: hidden; box-shadow: 0 4px 14px rgba(13,27,42,.05);
}
.faq-item summary {
  padding: 17px 21px; font-weight: 700; cursor: pointer; list-style: none;
  display: flex; align-items: center; justify-content: space-between; font-size: 1rem;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: "+"; font-size: 1.3rem; color: var(--blue); font-weight: 800; transition: transform .2s; }
.faq-item[open] summary::after { transform: rotate(45deg); }
.faq-item summary:hover { color: var(--blue); }
.faq-item p { padding: 0 21px 18px; color: var(--gray); font-size: .93rem; }

.cta-final {
  background: linear-gradient(135deg, var(--blue-dark), var(--blue) 60%, var(--blue-light));
  padding: 80px 0; text-align: center; color: #fff;
}
.cta-inner h2 { color: #fff; margin-bottom: 12px; }
.cta-inner p { max-width: 540px; margin: 0 auto 30px; color: rgba(255,255,255,.92); font-size: 1.05rem; }
.btn-dl-lg { display: inline-flex; background: #fff; color: var(--blue-dark); font-size: 1.2rem; padding: 18px 36px; box-shadow: 0 16px 40px rgba(0,0,0,.26); }
.btn-dl-lg:hover { box-shadow: 0 20px 48px rgba(0,0,0,.32); }
.dl-password { display: inline-flex; margin-top: 18px; background: rgba(255,255,255,.14); border: 1px dashed rgba(255,255,255,.5); border-radius: 10px; padding: 9px 14px; align-items: center; gap: 10px; }
.pw-label { color: #fff; font-weight: 600; font-size: .9rem; }
.pw-code { font-family: 'Cascadia Code', monospace; font-weight: 800; font-size: 1.2rem; color: #fff; letter-spacing: 2px; background: rgba(255,255,255,.2); padding: 2px 11px; border-radius: 7px; border: 1px solid rgba(255,255,255,.4); }

.footer { background: var(--dark); color: #cbd5e1; padding: 50px 0 90px; }
.footer-inner { text-align: center; }
.footer-brand { display: flex; align-items: center; justify-content: center; gap: 9px; font-weight: 800; font-size: 1.15rem; color: #fff; margin-bottom: 11px; }
.footer-brand img { border-radius: 8px; }
.footer-desc { max-width: 440px; margin: 0 auto 20px; font-size: .92rem; color: #94a3b8; }
.footer-copy { font-size: .83rem; color: #64748b; }

@media (max-width: 900px) {
  .included-grid { grid-template-columns: 1fr; }
  .steps-grid { grid-template-columns: 1fr; }
  .compare-row { grid-template-columns: 1.2fr .9fr .9fr; }
  .nav a { display: none; }
  .dlbar-name em { display: none; }
}
@media (max-width: 560px) {
  .hero { padding: 50px 0 64px; }
  .btn-dl { font-size: 1.02rem; padding: 15px 24px; }
}