:root {
  --bg: #f3f6f9;
  --card: #ffffff;
  --border: #e4eaf1;
  --text: #1c2430;
  --muted: #7a8696;
  --accent: #2b9bff;
  --accent-deep: #1678d6;
  --ok: #1dbf73;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; height: 100%; }
body {
  margin: 0;
  min-height: 100%;
  display: flex;
  flex-direction: column;
  color: var(--text);
  background: var(--bg);
  font: 16px/1.55 "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
}
a { color: var(--accent-deep); text-decoration: none; }
.top {
  width: 100%;
  max-width: none;
  margin: 0;
  padding: 16px max(24px, calc((100% - 1080px) / 2));
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  background: #fff;
  border-bottom: 1px solid var(--border);
}
.logo { display: inline-flex; align-items: center; gap: 8px; font-weight: 800; letter-spacing: 0.04em; color: var(--accent-deep); font-size: 18px; }
.logo img { width: 38px; height: 20px; display: block; }
.top nav { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 18px; }
.top nav a { color: var(--muted); }
.top nav a:hover, .top nav a[aria-current="page"] { color: var(--text); }
.top nav a[aria-current="page"] { font-weight: 700; }
.hero {
  flex: 1;
  width: 100%;
  max-width: 1080px;
  margin: 0 auto;
  padding: 28px 24px 32px;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 36px;
  align-items: center;
}
.eyebrow { color: var(--accent-deep); font-weight: 600; margin: 0 0 10px; }
.hero h1 { font-size: clamp(32px, 5vw, 52px); line-height: 1.15; margin: 0 0 14px; }
.lead { color: var(--muted); font-size: 18px; margin: 0 0 22px; max-width: 34em; }
.tags { display: flex; flex-wrap: wrap; gap: 8px; margin: 0; padding: 0; }
.tags span {
  padding: 4px 10px;
  border-radius: 999px;
  background: #fff;
  border: 1px solid var(--border);
  color: var(--text);
  font-size: 14px;
}
.cta { display: flex; gap: 12px; flex-wrap: wrap; }
.btn {
  display: inline-block;
  padding: 11px 18px;
  border-radius: 10px;
  background: var(--accent);
  color: #fff;
  font-weight: 600;
}
.btn:hover { background: var(--accent-deep); }
.btn.ghost { background: #fff; color: var(--text); border: 1px solid var(--border); }
.hero-card { display: grid; place-items: center; }
.win {
  width: min(360px, 100%);
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 16px;
  box-shadow: 0 18px 40px rgba(28, 36, 48, 0.08);
}
.win-bar { display: flex; align-items: center; gap: 6px; padding: 12px 14px; border-bottom: 1px solid var(--border); }
.win-bar span { width: 8px; height: 8px; border-radius: 50%; background: #d7dee7; }
.win-bar span:nth-child(1) { background: #f0b4ae; }
.win-bar span:nth-child(2) { background: #f3d48a; }
.win-bar span:nth-child(3) { background: #b7e0c2; }
.win-bar em { margin-left: auto; font-style: normal; font-size: 12px; color: var(--muted); }
.screen {
  margin: 16px;
  height: 148px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: linear-gradient(180deg, #f3f8fd, #fbfcfe);
  display: grid;
  align-content: center;
  justify-items: center;
  gap: 6px;
}
.screen-id { font-size: 22px; font-weight: 700; letter-spacing: 1.2px; }
.screen-state { color: var(--ok); font-size: 13px; font-weight: 600; }
.win-body { padding: 18px; display: grid; gap: 12px; }
.win-row { display: flex; justify-content: space-between; color: var(--muted); font-size: 14px; }
.win-row strong { color: var(--text); }
.win-row .ok { color: var(--ok); }
.shot-label { margin: 0; font-size: 13px; color: var(--muted); }
.shot-note { margin: 0; font-size: 13px; color: var(--muted); }
.statement {
  width: min(760px, calc(100% - 48px));
  margin: 36px auto 56px;
  padding: 48px 56px 36px;
  background: #fff;
  border: 1px solid var(--border);
  color: var(--text);
}
.statement h2 {
  margin: 0;
  text-align: center;
  font-size: 26px;
  font-weight: 700;
  letter-spacing: 0.12em;
}
.statement .issued {
  margin: 14px 0 8px;
  padding-bottom: 22px;
  border-bottom: 1px solid var(--border);
  text-align: center;
  color: var(--muted);
  font-size: 14px;
}
.statement h3 { margin: 26px 0 8px; font-size: 16px; font-weight: 700; }
.statement p { margin: 0 0 10px; line-height: 1.8; }
.statement ul { margin: 0 0 4px; padding-left: 1.4em; }
.statement li { margin: 0 0 6px; line-height: 1.8; }
.work {
  margin-top: 22px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 22px;
}
.work h3 { margin: 0 0 8px; }
.work p { margin: 0 0 12px; color: var(--muted); }
.work ul { margin: 0 0 12px; padding-left: 1.2em; color: var(--text); }
.work li + li { margin-top: 4px; }
.work-note { margin: 0; }
.facts { margin: 22px auto 0; max-width: 1080px; display: grid; gap: 14px; }
.facts div {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 16px 18px;
}
.facts dt { font-weight: 700; }
.facts dd { margin: 4px 0 0; color: var(--muted); }
.contact {
  flex: 1;
  width: min(720px, calc(100% - 48px));
  margin: 0 auto;
  padding: 48px 0 56px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.contact h2 { font-size: clamp(32px, 4vw, 44px); line-height: 1.15; margin: 0 0 28px; }
.contact-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.contact-card {
  display: block;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 22px 24px 20px;
  color: var(--text);
}
.contact-card span { display: block; color: var(--muted); font-size: 13px; margin-bottom: 8px; }
.contact-card strong { display: block; font-size: 18px; font-weight: 700; color: var(--accent-deep); }
.contact-card:hover { border-color: #b9d4ee; }
.wrap { max-width: 1080px; margin: 0 auto; padding: 20px 24px 64px; }
.wrap h2 { font-size: 28px; margin: 0 0 8px; }
.section-lead, .muted { color: var(--muted); }
.grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; margin-top: 22px; }
.grid article {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 20px;
}
.grid h3 { margin: 0 0 8px; }
.grid p { margin: 0; color: var(--muted); }
.band { background: #fff; border-block: 1px solid var(--border); max-width: none; padding: 48px 24px; }
.band h2, .band .steps, .band .center, .band .muted { max-width: 1080px; margin-left: auto; margin-right: auto; }
.steps { list-style: none; padding: 0; margin: 24px auto; display: grid; gap: 16px; }
.steps li {
  background: var(--bg);
  border-radius: 12px;
  padding: 16px 18px;
  display: grid;
  gap: 4px;
}
.steps strong { font-size: 16px; }
.steps span { color: var(--muted); }
.center { text-align: center; }
.cta { margin-top: 22px; }
.release {
  margin-top: 22px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 22px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
}
.release h3 { margin: 0 0 6px; }
.release p { margin: 0; }
.hash { font-family: Consolas, "Cascadia Mono", monospace; font-size: 13px; word-break: break-all; }
.table { width: 100%; border-collapse: collapse; background: #fff; border: 1px solid var(--border); border-radius: 14px; overflow: hidden; margin-top: 22px; }
.table th, .table td { text-align: left; padding: 12px 14px; border-bottom: 1px solid var(--border); vertical-align: middle; }
.table th { color: var(--muted); font-weight: 600; font-size: 14px; background: #f8fafc; }
.table tr:last-child td { border-bottom: 0; }
.badge { display: inline-block; padding: 2px 8px; border-radius: 999px; background: #e7f8ef; color: #0d8a4b; font-size: 13px; }
footer {
  margin-top: auto;
  width: 100%;
  padding: 28px 0 18px;
  border-top: 1px solid var(--border);
  background: #fff;
  font-size: 14px;
  line-height: 1.6;
}
.foot {
  width: min(1080px, calc(100% - 48px));
  margin: 0 auto 18px;
  display: grid;
  grid-template-columns: 1.2fr repeat(4, 1fr);
  align-items: start;
  column-gap: 28px;
}
.foot-brand {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 800;
  letter-spacing: 0.04em;
  color: var(--accent-deep);
  font-size: 18px;
}
.foot-brand img { width: 38px; height: 20px; display: block; }
.foot-col strong { display: block; margin-bottom: 8px; color: var(--text); font-size: 14px; }
.foot-col a {
  display: block;
  color: var(--muted);
  text-decoration: none;
  line-height: 2;
}
.foot-col a:hover { color: var(--text); }
.beian {
  margin: 0;
  padding: 16px 24px 4px;
  border-top: 1px solid var(--border);
  text-align: center;
}
.beian a {
  color: #1c2430;
  text-decoration: underline;
  text-underline-offset: 3px;
}
.beian a:hover { color: var(--accent-deep); }
@media (max-width: 800px) {
  .hero, .grid, .release { grid-template-columns: 1fr; }
  .release { flex-direction: column; align-items: flex-start; }
  .top { flex-direction: column; align-items: flex-start; }
  .top nav { justify-content: flex-start; }
  .contact-row { grid-template-columns: 1fr; }
  .statement { padding: 32px 22px 24px; }
}
.home .hero {
  max-width: 1080px;
  width: 100%;
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 48px;
  align-items: center;
  text-align: left;
  justify-content: initial;
  padding: 56px 24px;
}
.home .lead { margin-left: 0; margin-right: 0; max-width: 34em; }
.home .tags, .home .cta { justify-content: flex-start; }
.home .cta { margin-top: 8px; }
.home .hero-card { margin-top: 0; width: min(420px, 100%); justify-self: end; }
.home .win { width: 100%; }
@media (max-width: 800px) {
  .home .hero { grid-template-columns: 1fr; }
  .home .hero-card { justify-self: stretch; }
  .foot { grid-template-columns: 1fr; row-gap: 18px; }
}