:root {
  --ink: #1f2328;
  --muted: #57606a;
  --line: #d8dee4;
  --soft: #f6f8fa;
  --orange: #ff5a2c;
  --blue: #1f8fff;
  --green: #45c25a;
  --link: #0b6bd3;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  color: var(--ink);
  background: #fff;
  font: 17px/1.6 system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

a { color: var(--link); }

img, video { max-width: 100%; display: block; }

.wrap { max-width: 980px; margin: 0 auto; padding: 0 20px; }

/* Banner */
.hero { position: relative; overflow: hidden; color: #fff; background: #0b0f17; }
.hero-bg {
  position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover;
  filter: blur(3px) brightness(0.42); transform: scale(1.08);
}
.hero-body { position: relative; max-width: 980px; margin: 0 auto; padding: 72px 20px 56px; text-align: center; }
.hero h1 { margin: 0; line-height: 0; }
.hero-logo { display: inline-block; height: 136px; width: auto;
  filter: drop-shadow(0 4px 18px rgba(0, 0, 0, 0.5)); }
.hero-sub { margin: 14px 0 22px; font-size: 1.55rem; font-weight: 500; }
.authors { margin: 0; font-size: 1.08rem; }
.authors a { color: #fff; text-decoration: underline; text-underline-offset: 3px; text-decoration-color: rgba(255,255,255,0.5); }
.affil { margin: 4px 0 26px; color: #d7dde5; font-size: 0.98rem; }
.links { display: flex; gap: 10px; justify-content: center; flex-wrap: wrap; }
.btn {
  display: inline-flex; align-items: center; gap: 7px; padding: 8px 16px;
  font: inherit; font-size: 0.98rem; font-weight: 600; color: #fff; text-decoration: none;
  background: rgba(255,255,255,0.08); border: 1px solid rgba(255,255,255,0.7); border-radius: 6px; cursor: pointer;
}
.btn:hover { background: rgba(255,255,255,0.18); }
.btn svg { width: 16px; height: 16px; }

/* Body */
main section { padding: 34px 20px 8px; }
h2 { font-size: 1.6rem; margin: 26px 0 12px; line-height: 1.25; }
h3 { font-size: 1.12rem; margin: 0 0 6px; }
p { margin: 0 0 14px; }
.small { font-size: 0.92rem; }
figure { margin: 20px 0; }
figcaption { color: var(--muted); font-size: 0.93rem; margin-top: 8px; }
figure img { width: 100%; }
.teaser { margin-top: 36px; }
.teaser img { border-radius: 6px; }

.clip { width: 100%; border: 1px solid var(--line); border-radius: 6px; background: #000; }

.method-row { display: grid; grid-template-columns: 3fr 2fr; gap: 22px; align-items: center; margin: 18px 0 26px; }

.hw-case { margin: 22px 0 28px; }
.hw-cap { margin-bottom: 8px; }
.pair { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.pair figure { margin: 0; }
.pair figcaption.side { margin: 0 0 5px; color: var(--ink); font-weight: 600; font-size: 0.92rem; }

.tag { font-weight: 700; margin-right: 4px; }
.tag.unsafe { color: #c2410c; }
.tag.benign { color: #15803d; }

/* Demo */
.demo-frame {
  position: relative; width: 100%; aspect-ratio: 16 / 10; min-height: 420px;
  border: 1px solid var(--line); border-radius: 6px; overflow: hidden; background: var(--soft);
}
.demo-frame iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }
.demo-poster {
  position: absolute; inset: 0; width: 100%; border: 0; padding: 0; cursor: pointer; font: inherit;
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 10px;
  background-size: cover; background-position: center;
}
.demo-poster::before { content: ""; position: absolute; inset: 0; background: rgba(12, 16, 22, 0.55); }
.demo-poster > * { position: relative; }
.demo-start {
  color: #fff; font-weight: 700; font-size: 1.1rem; padding: 10px 22px;
  background: var(--blue); border-radius: 6px;
}
.demo-poster:hover .demo-start { background: #0b77e3; }
.demo-note { color: #e3e8ee; font-size: 0.9rem; }

/* BibTeX */
.bibtex-head { display: flex; align-items: center; justify-content: space-between; }
pre {
  margin: 4px 0 0; padding: 14px 16px; overflow-x: auto; font-size: 0.86rem; line-height: 1.5;
  background: var(--soft); border: 1px solid var(--line); border-radius: 6px;
}
.btn-plain {
  font: inherit; font-size: 0.9rem; padding: 4px 12px; color: var(--ink); background: #fff;
  border: 1px solid var(--line); border-radius: 6px; cursor: pointer;
}
.btn-plain:hover { background: var(--soft); }

.footer { padding-top: 30px; padding-bottom: 50px; text-align: center; color: var(--muted); font-size: 0.9rem; }
.funding { display: flex; justify-content: center; align-items: center; gap: 44px; margin: 10px 0 14px; flex-wrap: wrap; }
.funding img { height: 42px; width: auto; }

dialog { padding: 0; border: 0; border-radius: 6px; width: min(1100px, 94vw); background: #000; }
dialog::backdrop { background: rgba(0, 0, 0, 0.75); }
dialog video { width: 100%; }
dialog .close { position: absolute; top: 8px; right: 8px; }

@media (max-width: 760px) {
  body { font-size: 16px; }
  .hero-logo { height: 104px; }
  .hero-sub { font-size: 1.2rem; }
  .method-row { grid-template-columns: 1fr; }
  .pair { gap: 8px; }
  .demo-frame { aspect-ratio: 3 / 4; min-height: 520px; }
}