:root {
  --ink: #111;
  --mute: #666;
  --line: #ececec;
  --bg: #fafafa;
  --white: #fff;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: "Inter", "Helvetica Neue", Arial, "PingFang SC", "Microsoft YaHei", sans-serif;
  color: var(--ink);
  background: var(--white);
  line-height: 1.6;
}
img { max-width:100%;height:auto; display: block; }
a { color: inherit; text-decoration: none; }
.wrap { width: min(960px, calc(100% - 40px)); margin-inline: auto; }
nav {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(255,255,255,0.92);
  border-bottom: 1px solid var(--line);
}
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  min-height: 60px;
}
.brand { font-weight: 650; letter-spacing: -0.04em; }
.links { display: flex; gap: 22px; font-size: 0.9rem; color: var(--mute); }
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--ink);
  color: var(--white);
  font-weight: 650;
  padding: 10px 18px;
  border-radius: 8px;
}
.button.wide { width: 100%; margin-top: 8px; }
.ghost {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
}
.hero { padding: 64px 0 40px; text-align: center; }
.kicker { font-size: 0.78rem; letter-spacing: 0.18em; color: var(--mute); margin-bottom: 12px; }
.hero h1, .page-head h1 {
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  letter-spacing: -0.05em;
  line-height: 1.2;
}
.lead { color: var(--mute); margin: 12px auto; max-width: 36em; }
.sub { margin: 0 auto 32px; max-width: 32em; }
.plan {
  width: min(380px, 100%);
  margin: 0 auto;
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 32px 28px;
  text-align: left;
  background: var(--white);
}
.plan-name { font-size: 0.85rem; color: var(--mute); }
.plan-price { font-size: 2rem; letter-spacing: -0.05em; margin: 6px 0 18px; }
.plan ul { list-style: none; margin-bottom: 20px; }
.plan li {
  padding: 8px 0 8px 22px;
  position: relative;
  border-bottom: 1px solid var(--line);
}
.plan li::before { content: "✓"; position: absolute; left: 0; }
.section { padding: 80px 0; }
.head { margin-bottom: 28px; max-width: 36em; }
.grid6, .cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}
.card, .download-card {
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 20px;
}
.icon { margin-bottom: 8px; }
.split {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 32px;
  align-items: center;
}
.split img, .shot img, .cta img {
  width: 100%;
  object-fit: cover;
  border-radius: 12px;
}
.scene-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin: 16px 0 20px;
}
.scene {
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 10px 12px;
  display: flex;
  gap: 8px;
}
.review-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}
.review { border-top: 1px solid var(--line); padding: 16px 0; }
.person { margin-top: 12px; color: var(--mute); display: flex; flex-direction: column; }
.visual { padding: 0 0 80px; }
.metrics { display: flex; gap: 24px; margin: 18px 0; }
.metrics b { display: block; font-size: 1.4rem; letter-spacing: -0.04em; }
.metrics small { color: var(--mute); }
.faq-layout {
  display: grid;
  grid-template-columns: 0.7fr 1.3fr;
  gap: 32px;
}
details { border-bottom: 1px solid var(--line); padding: 12px 0; }
summary { cursor: pointer; font-weight: 650; }
details p { margin-top: 8px; color: var(--mute); }
.cta { background: var(--bg); padding: 40px 0; }
.cta-in {
  display: grid;
  grid-template-columns: 0.7fr 1.1fr auto;
  gap: 24px;
  align-items: center;
}
.cta img { height: 120px; object-fit: cover; }
footer {
  background: var(--white);
  border-top: 1px solid var(--line);
  color: var(--mute);
  padding: 40px 0 20px;
}
.footer {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 22px;
  margin-bottom: 22px;
}
.footer .brand { color: var(--ink); }
.footer h4 { color: var(--ink); margin-bottom: 8px; font-weight: 650; }
.footer a { display: block; margin: 6px 0; }
.copy { border-top: 1px solid var(--line); padding-top: 12px; font-size: 0.82rem; }
.page-head { padding: 48px 0 8px; text-align: center; }
.help-layout {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 28px;
}
.side a { display: block; padding: 8px 0; border-bottom: 1px solid var(--line); }
.article { margin-bottom: 36px; }
.article .shot { margin: 14px 0; }
.policy { margin-top: 14px; padding: 14px; border: 1px solid var(--line); border-radius: 12px; }
@media (max-width: 900px) {
  .grid6, .cards, .review-grid, .split, .faq-layout, .footer, .help-layout, .cta-in {
    grid-template-columns: 1fr;
  }
  .links { display: none; }
}
@media (max-width: 640px) {
  .scene-grid { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{animation:none!important;transition:none!important}}