:root {
  --menu: #111c43;
  --bg: #ffffff;
  --button: #845adf;
  --ink: #0f1836;
  --soft: #eef1fb;
  --line: #dce1f2;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: "Inter", "Segoe UI", sans-serif;
  background: linear-gradient(180deg, #fff 0%, #f6f8ff 100%);
  color: var(--ink);
  line-height: 1.65;
}
header {
  background: var(--menu);
  color: #fff;
  padding: 1rem 1.25rem;
  position: sticky;
  top: 0;
  z-index: 10;
}
.nav-wrap {
  max-width: 1080px;
  margin: 0 auto;
  display: flex;
  gap: 1rem;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
}
.brand { display:flex; align-items:center; gap:.6rem; font-weight:700; letter-spacing:.2px; }
.brand img { width: 30px; height: 30px; }
nav a {
  color: #dbe4ff;
  text-decoration: none;
  margin-right: .8rem;
  font-size: .95rem;
}
nav a:hover { color: #fff; text-decoration: underline; }
main { max-width: 1080px; margin: 1.1rem auto 2rem; padding: 0 1rem; }
h1 { font-size: clamp(1.8rem, 3.8vw, 2.6rem); margin: .2rem 0 .7rem; }
h2 { font-size: clamp(1.2rem, 2.7vw, 1.75rem); margin: 1.8rem 0 .6rem; }
h3 { margin-top: 1.2rem; font-size: 1.08rem; }
.hero {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 1rem;
  box-shadow: 0 8px 24px rgba(17, 28, 67, .07);
}
.url-block {
  margin-top: .8rem;
  display: grid;
  gap: .7rem;
}
.link-panel {
  background: var(--soft);
  border: 1px solid #ccd5f0;
  border-left: 4px solid var(--button);
  border-radius: 10px;
  padding: .8rem;
}
.url-row { display:flex; align-items:center; gap:.45rem; flex-wrap:wrap; }
.status-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #24d26f;
  box-shadow: 0 0 0 rgba(36,210,111,.7);
  animation: ping 1.8s infinite;
}
@keyframes ping {
  0% { box-shadow: 0 0 0 0 rgba(36,210,111,.7); opacity: 1; }
  70% { box-shadow: 0 0 0 9px rgba(36,210,111,0); opacity: .75; }
  100% { box-shadow: 0 0 0 0 rgba(36,210,111,0); opacity: 1; }
}
.live-text { font-size: .85rem; color: #1a8f50; font-weight: 700; letter-spacing: .3px; }
.wrap-link {
  word-break: break-word;
  overflow-wrap: anywhere;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  background: #fff;
  border: 1px solid #cad3f2;
  border-radius: 8px;
  padding: .55rem;
  flex: 1;
  min-width: 210px;
}
button.copy-btn {
  border: 0;
  border-radius: 8px;
  padding: .55rem .8rem;
  background: var(--button);
  color: #fff;
  cursor: pointer;
  font-weight: 600;
}
.grid-quirk {
  display: grid;
  gap: 1rem;
  grid-template-columns: 1.15fr .85fr;
}
.grid-quirk > section:nth-child(2) { margin-top: .8rem; }
.card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 1rem;
}
table { width: 100%; border-collapse: collapse; margin: .65rem 0; font-size: .95rem; }
th, td { border: 1px solid #d4dbf3; padding: .6rem; text-align: left; vertical-align: top; }
th { background: #f2f5ff; }
img.feature {
  width: 100%;
  border-radius: 12px;
  border: 1px solid #dbe2f8;
  margin: .65rem 0;
}
.breadcrumb {
  font-size: .9rem;
  margin: .4rem 0 1rem;
  color: #4b5788;
}
.breadcrumb a { color: #2e3f81; }
.faq-item { border-top: 1px dashed #cfd8f5; padding: .75rem 0; }
footer {
  margin-top: 2rem;
  background: #0f1738;
  color: #d8e0ff;
  padding: 1.4rem 1rem;
}
.footer-wrap { max-width: 1080px; margin: 0 auto; }
.footer-wrap a { color: #baccff; }
.notice { font-size: .88rem; color: #46528a; margin-top: .4rem; }
.unique-seo {
  border: 1px dashed #a9b8ec;
  background: #f8faff;
  padding: .8rem;
  border-radius: 10px;
  margin-top: 1rem;
}
@media (max-width: 860px) {
  .grid-quirk { grid-template-columns: 1fr; }
  .grid-quirk > section:nth-child(2) { margin-top: 0; }
}