:root {
  --bg: #f7f8fa; --card: #fff; --text: #14171a; --muted: #5b6670; --line: #e3e7eb;
  --accent: #1d9bf0; --accent-2: #1a8cd8; --err: #d93a3a;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #0f1419; --card: #16202a; --text: #e7e9ea; --muted: #8b98a5; --line: #2f3b47; }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text);
  font: 16px/1.6 system-ui, -apple-system, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif; }
.wrap { max-width: 860px; margin: 0 auto; padding: 0 16px; }
.row { display: flex; align-items: center; justify-content: space-between; }
.top { border-bottom: 1px solid var(--line); background: var(--card); }
.top .row { height: 56px; }
.logo { display: inline-flex; align-items: center; gap: 8px; font-weight: 800; font-size: 20px;
  color: var(--text); text-decoration: none; letter-spacing: .3px; }
.logo b { color: var(--accent); }
.logo img { display: block; }
button { font: inherit; cursor: pointer; border: 0; border-radius: 10px; padding: 10px 18px;
  background: var(--accent); color: #fff; font-weight: 600; white-space: nowrap; }
button:hover { background: var(--accent-2); }
button:disabled { opacity: .55; cursor: default; }
button.ghost { background: transparent; color: var(--text); border: 1px solid var(--line); }
button.ghost:hover { background: var(--line); }
a.btn { display: inline-block; text-decoration: none; border-radius: 10px; padding: 9px 16px;
  background: var(--accent); color: #fff; font-weight: 600; }
a.btn.alt { background: transparent; color: var(--text); border: 1px solid var(--line); }

.hero { text-align: center; padding: 48px 0 24px; }
h1 { font-size: clamp(28px, 6vw, 40px); margin: 0 0 8px; }
.sub { color: var(--muted); margin: 0 0 24px; }
.search { display: flex; gap: 8px; background: var(--card); padding: 8px; border-radius: 14px;
  border: 1px solid var(--line); box-shadow: 0 4px 18px rgba(0,0,0,.05); }
.search input { flex: 1; min-width: 0; border: 0; outline: 0; background: transparent; color: var(--text);
  font: inherit; padding: 8px 10px; }
.msg { min-height: 1.6em; margin: 12px 0 0; color: var(--muted); }
.msg.err { color: var(--err); }

.example code { background: var(--card); border: 1px solid var(--line); border-radius: 6px;
  padding: 1px 6px; font-size: 13px; color: var(--text); word-break: break-all; }
.example b { color: var(--accent); }
.example s { color: var(--muted); }
.example { line-height: 2.2; }
.results { display: grid; gap: 16px; }
.card { display: grid; grid-template-columns: minmax(0, 300px) 1fr; gap: 16px; background: var(--card);
  border: 1px solid var(--line); border-radius: 14px; padding: 16px; }
.preview video, .preview img { width: 100%; border-radius: 10px; background: #000; display: block; }
.meta { color: var(--muted); font-size: 14px; margin-bottom: 12px; word-break: break-word; }
.meta b { color: var(--text); }
.actions { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 12px; }
.gifopts { display: flex; flex-wrap: wrap; gap: 10px; align-items: end; margin-bottom: 12px; }
.gifopts label { display: grid; font-size: 13px; color: var(--muted); }
select { font: inherit; padding: 8px; border-radius: 8px; border: 1px solid var(--line);
  background: var(--bg); color: var(--text); }
.progress { position: relative; height: 26px; background: var(--line); border-radius: 8px; overflow: hidden; margin-bottom: 12px; }
.progress .bar { height: 100%; width: 0; background: var(--accent); transition: width .15s; }
.progress .ptext { position: absolute; inset: 0; display: grid; place-items: center; font-size: 13px; font-weight: 600; }
.output img { max-width: 100%; border-radius: 10px; display: block; margin-bottom: 10px; }

.info { margin: 48px 0 24px; }
.info h2 { font-size: 22px; margin-top: 32px; }
.info li { margin: 6px 0; }
details { background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 10px 14px; margin: 8px 0; }
summary { cursor: pointer; font-weight: 600; }
.foot { color: var(--muted); font-size: 13px; text-align: center; padding: 24px 16px 40px; }

@media (max-width: 640px) {
  .card { grid-template-columns: 1fr; }
  .search { flex-wrap: wrap; }
  .search input { flex-basis: 100%; }
  .search button { flex: 1; }
}