:root {
  --purple: #7C3AED;
  --cyan: #06B6D4;
  --yellow: #FDE68A;
  --ink: #1E1B4B;
  --paper: #FFFFFF;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  font-family: "Trebuchet MS", "PingFang SC", "Microsoft YaHei", sans-serif;
  line-height: 1.7;
  background:
    linear-gradient(135deg, rgba(124, 58, 237, 0.18) 0%, rgba(6, 182, 212, 0.16) 48%, rgba(253, 230, 138, 0.35) 100%),
    repeating-linear-gradient(-18deg, transparent, transparent 42px, rgba(124, 58, 237, 0.05) 42px, rgba(124, 58, 237, 0.05) 44px),
    #f5f3ff;
  background-attachment: fixed;
}

.inner { width: min(1080px, calc(100% - 32px)); margin: 0 auto; }

header {
  padding: 16px 0;
}
header .inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}
.brand {
  margin: 0;
  font-weight: 800;
  color: var(--purple);
}
nav { display: flex; flex-wrap: wrap; gap: 8px; }
nav a {
  text-decoration: none;
  color: var(--ink);
  background: var(--paper);
  padding: 8px 14px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 14px;
  box-shadow: 6px 6px 0 rgba(30, 27, 75, 0.12);
}
nav a:hover { background: var(--yellow); }

.hero { padding: 28px 0 70px; }
.hero-stage { position: relative; min-height: 420px; }

.float-card {
  background: var(--paper);
  border-radius: 28px;
  padding: 22px 24px;
  box-shadow: 12px 16px 0 rgba(30, 27, 75, 0.12);
}
.card-a {
  width: min(560px, 100%);
  position: relative;
  z-index: 3;
  background: linear-gradient(160deg, #fff 0%, #ede9fe 100%);
}
.card-b {
  position: absolute;
  right: 40px;
  top: 36px;
  width: 280px;
  z-index: 2;
  background: var(--yellow);
  transform: rotate(3deg);
  margin-top: -12px;
}
.card-c {
  position: absolute;
  right: 0;
  top: 230px;
  width: 300px;
  z-index: 4;
  background: #ecfeff;
  transform: rotate(-4deg);
  margin-top: -28px;
}

.brand-pill {
  display: inline-block;
  margin: 0 0 10px;
  padding: 4px 12px;
  border-radius: 999px;
  background: var(--purple);
  color: #fff;
  font-size: 13px;
  font-weight: 700;
}
h1 {
  margin: 0 0 12px;
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  line-height: 1.2;
}
.cta {
  display: inline-block;
  margin-top: 8px;
  padding: 12px 28px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--purple), var(--cyan));
  color: #fff;
  text-decoration: none;
  font-weight: 800;
  box-shadow: 0 10px 0 rgba(124, 58, 237, 0.35);
}
.cta:hover { filter: saturate(1.15); }
.float-card ul { margin: 8px 0 0; padding-left: 1.1em; }
.t { margin: 0 0 8px; font-weight: 800; }

.band { padding: 40px 0 20px; }
.band.pale { background: rgba(255,255,255,0.45); }
h2 { margin: 0 0 18px; font-size: 1.55rem; }
.lead { margin: 0 0 18px; max-width: 46em; }

.stagger { position: relative; min-height: 280px; }
.s-card {
  background: var(--paper);
  border-radius: 24px;
  padding: 18px 20px;
  box-shadow: 8px 10px 0 rgba(30, 27, 75, 0.1);
  margin-bottom: 14px;
}
.s1 { width: 78%; }
.s2 { width: 78%; margin-left: 22%; background: #ecfeff; }
.s3 { width: 78%; }
.s4 { width: 78%; margin-left: 22%; background: var(--yellow); }
.s-card p:last-child { margin: 0; }
.wide-note { width: 100%; background: linear-gradient(120deg, #ede9fe, #ecfeff); }

.zig {
  width: min(640px, 100%);
  background: var(--paper);
  border-radius: 24px;
  padding: 18px 20px;
  margin-bottom: 16px;
  box-shadow: 8px 10px 0 rgba(124, 58, 237, 0.15);
}
.zig.left { margin-right: auto; transform: rotate(-1deg); }
.zig.right { margin-left: auto; background: var(--yellow); transform: rotate(1.4deg); }
.zig p:last-child { margin: 0; }

.media-stagger .s-card:nth-child(2) { margin-left: 10%; width: 80%; background: #f5f3ff; }
.media-stagger .s-card:nth-child(3) { margin-left: 20%; width: 80%; background: #ecfeff; }

.step-bar {
  position: relative;
  margin: 36px 0 20px;
  padding: 28px 8px 8px;
}
.step-bar::before {
  content: "";
  position: absolute;
  left: 8%;
  right: 8%;
  top: 46px;
  height: 18px;
  background: linear-gradient(90deg, var(--purple), var(--cyan), var(--yellow));
  border-radius: 999px;
  z-index: 0;
}
.step-bar ol {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  position: relative;
  z-index: 1;
}
.step-bar li {
  text-align: center;
  background: var(--paper);
  border-radius: 22px;
  padding: 12px 10px 16px;
  box-shadow: 0 12px 0 rgba(30, 27, 75, 0.1);
}
.step-bar span {
  display: flex;
  width: 64px;
  height: 64px;
  margin: -40px auto 10px;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--ink);
  color: var(--yellow);
  font-weight: 800;
  font-size: 1.2rem;
  box-shadow: 0 0 0 6px rgba(253, 230, 138, 0.7);
}
.step-bar p:last-child { margin: 0; font-size: 0.92rem; }

.fat {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}
.fat article {
  background: var(--paper);
  border-radius: 28px;
  padding: 22px;
  min-height: 220px;
  box-shadow: 12px 14px 0 rgba(6, 182, 212, 0.25);
}
.fat article:last-child {
  background: var(--yellow);
  box-shadow: 12px 14px 0 rgba(124, 58, 237, 0.25);
  transform: translateY(12px);
}
.fat p:last-child { margin: 0; }

.faq-wrap { display: grid; gap: 12px; }
.faq-card {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  background: var(--paper);
  border-radius: 22px;
  padding: 14px 16px;
  box-shadow: 6px 8px 0 rgba(30, 27, 75, 0.08);
}
.faq-card svg { flex: 0 0 auto; }
.faq-card p:last-child { margin: 0; }

footer {
  background: var(--ink);
  color: #e0e7ff;
  padding: 24px 0;
  font-size: 14px;
}
footer p { margin: 0 0 8px; }

@media (max-width: 860px) {
  .hero-stage { min-height: 0; }
  .card-b, .card-c {
    position: relative;
    right: auto;
    top: auto;
    width: 100%;
    transform: none;
    margin: 16px 0 0;
  }
  .s1, .s2, .s3, .s4, .media-stagger .s-card { width: 100%; margin-left: 0; }
  .step-bar ol, .fat { grid-template-columns: 1fr; }
  .step-bar::before { display: none; }
  .step-bar span { margin-top: 0; }
  .fat article:last-child { transform: none; }
  header .inner { flex-direction: column; align-items: flex-start; }
}

#news .news-list { list-style: none; }
#news .news-list li { background: #fff; border-radius: 22px; padding: 16px 18px; margin: 0 0 14px 18px; box-shadow: 8px 8px 0 #fde68a; }
#news .news-list li:nth-child(even) { margin-left: 0; margin-right: 18px; box-shadow: -8px 8px 0 #06b6d4; }
#news time { color: #7c3aed; font-weight: 700; font-size: 12px; }
#news .news-list h3 { color: #1e1b4b; margin: 6px 0; }