:root {
  --blue: #2563EB;
  --bg: #F8FAFC;
  --green: #22C55E;
  --ink: #0F172A;
  --soft: #DBEAFE;
  --card: #ffffff;
  --muted: #475569;
  --radius: 20px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.7;
}

.wrap { width: min(1120px, calc(100% - 32px)); margin: 0 auto; }

.top {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(248, 250, 252, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid #e2e8f0;
}
.top-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 0;
}
.brand-mark {
  margin: 0;
  font-weight: 700;
  color: var(--blue);
}
.pill-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.pill-nav a {
  display: inline-flex;
  align-items: center;
  padding: 8px 16px;
  border-radius: 999px;
  background: var(--soft);
  color: var(--blue);
  text-decoration: none;
  font-size: 14px;
  font-weight: 600;
}
.pill-nav a:hover { background: #bfdbfe; }

.hero {
  padding: 48px 0 28px;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 28px;
  align-items: start;
}
.brand-chip {
  display: inline-block;
  margin: 0 0 12px;
  padding: 6px 14px;
  border-radius: 999px;
  background: var(--soft);
  color: var(--blue);
  font-weight: 700;
  font-size: 13px;
}
h1 {
  margin: 0 0 16px;
  font-size: clamp(1.7rem, 3vw, 2.35rem);
  line-height: 1.25;
}
.hero-copy p { margin: 0 0 12px; color: var(--muted); }
.cta {
  display: inline-flex;
  margin-top: 10px;
  padding: 12px 28px;
  border-radius: 999px;
  background: var(--blue);
  color: #fff;
  text-decoration: none;
  font-weight: 700;
  box-shadow: 0 10px 24px rgba(37, 99, 235, 0.25);
}
.cta:hover { background: #1d4ed8; }

.hero-visual {
  position: relative;
  background: var(--card);
  border-radius: var(--radius);
  padding: 24px 22px 20px;
  box-shadow: 0 16px 40px rgba(15, 23, 42, 0.06);
}
.visual-label {
  margin: 0 0 14px;
  font-weight: 700;
}
.chip-float {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 18px;
}
.chip {
  display: inline-flex;
  padding: 8px 16px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 14px;
}
.chip-pdf { background: #fee2e2; color: #b91c1c; transform: translateY(-4px); }
.chip-img { background: #dcfce7; color: #15803d; transform: translateY(6px); }
.chip-doc { background: var(--soft); color: var(--blue); }
.chip-sheet { background: #fef9c3; color: #a16207; transform: translateY(-6px); }
.chip-media { background: #ede9fe; color: #6d28d9; transform: translateY(4px); }

.mini-spec {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}
.mini-spec th, .mini-spec td {
  text-align: left;
  padding: 8px 6px;
  border-bottom: 1px solid #e2e8f0;
}

.block { padding: 52px 0; }
.block.tint { background: #eff6ff; }
h2 {
  margin: 0 0 12px;
  font-size: 1.55rem;
}
.lead { margin: 0 0 22px; color: var(--muted); }

.soft-card {
  background: var(--card);
  border-radius: var(--radius);
  padding: 22px;
  box-shadow: 0 10px 28px rgba(15, 23, 42, 0.05);
}
.soft-card svg { color: var(--blue); margin-bottom: 8px; }
.card-title { margin: 0 0 8px; font-weight: 700; }
.soft-card p:last-child { margin: 0; color: var(--muted); }

.feat-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-bottom: 16px;
}
.featured {
  background: linear-gradient(135deg, #eff6ff, #dcfce7);
  border: 1px solid #bfdbfe;
}

.scroller {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}
.scroller .soft-card {
  flex: 1 1 240px;
  min-width: 240px;
}

.spec-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}
.spec-card {
  background: var(--card);
  border-radius: var(--radius);
  padding: 22px;
  border: 1px solid #dbeafe;
}
.spec-card.wide { grid-column: 1 / -1; }
.spec-kicker {
  display: inline-block;
  margin: 0 0 10px;
  padding: 4px 12px;
  border-radius: 999px;
  background: var(--green);
  color: #fff;
  font-size: 13px;
  font-weight: 700;
}
.spec-card p:last-child { margin: 0; color: var(--muted); }

.chevrons {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
}
.chevrons li {
  position: relative;
  background: var(--card);
  padding: 22px 20px 22px 18px;
  clip-path: polygon(0 0, calc(100% - 16px) 0, 100% 50%, calc(100% - 16px) 100%, 0 100%, 16px 50%);
  box-shadow: inset 0 0 0 1px #dbeafe;
}
.chevrons li:first-child { clip-path: polygon(0 0, calc(100% - 16px) 0, 100% 50%, calc(100% - 16px) 100%, 0 100%); border-radius: var(--radius) 0 0 var(--radius); }
.chevrons li:last-child { clip-path: none; border-radius: 0 var(--radius) var(--radius) 0; }
.chevrons .num {
  display: inline-flex;
  width: 28px;
  height: 28px;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  background: var(--blue);
  color: #fff;
  font-weight: 700;
  font-size: 13px;
  margin-bottom: 8px;
}

.lock-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.lock-tile {
  background: var(--card);
  border-radius: var(--radius);
  padding: 22px;
  box-shadow: 0 10px 24px rgba(15, 23, 42, 0.05);
}
.lock-tile svg { color: var(--green); }
.lock-tile p:last-child { margin: 0; color: var(--muted); }

.req-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}
.req-list li {
  background: var(--card);
  border-radius: var(--radius);
  padding: 18px 20px;
  border-left: 6px solid var(--blue);
}
.req-list p:last-child { margin: 0; color: var(--muted); }

.table-wrap {
  overflow-x: auto;
  background: var(--card);
  border-radius: var(--radius);
  box-shadow: 0 10px 28px rgba(15, 23, 42, 0.05);
}
.file-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 720px;
}
.file-table th, .file-table td {
  padding: 12px 14px;
  text-align: left;
  border-bottom: 1px solid #e2e8f0;
  vertical-align: top;
}
.file-table th { background: var(--soft); }

.faq-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.faq-card {
  background: var(--card);
  border-radius: var(--radius);
  padding: 18px 20px;
  margin-bottom: 12px;
}
.q { margin: 0 0 8px; font-weight: 700; }
.faq-card p:last-child { margin: 0; color: var(--muted); }

.foot {
  background: var(--ink);
  color: #e2e8f0;
  padding: 28px 0;
  font-size: 14px;
}
.foot p { margin: 0 0 8px; }
.foot p:last-child { margin: 0; }

@media (max-width: 900px) {
  .hero-grid, .feat-grid, .lock-row, .faq-split, .spec-grid, .chevrons {
    grid-template-columns: 1fr;
  }
  .chevrons li, .chevrons li:first-child, .chevrons li:last-child {
    clip-path: none;
    border-radius: var(--radius);
    margin-bottom: 10px;
  }
  .top-inner { flex-direction: column; align-items: flex-start; }
}

#news .news-list { list-style: none; display: grid; gap: 12px; }
#news .news-list li { background: #fff; border-radius: 20px; padding: 18px 20px; box-shadow: 0 10px 24px rgba(37,99,235,.08); }
#news time { display: inline-block; background: #dbeafe; color: #2563eb; border-radius: 999px; padding: 2px 10px; font-size: 12px; font-weight: 700; }
#news .news-list h3 { margin: 8px 0 6px; color: #0f172a; }