/* ShipLabelCrop — shared stylesheet. System font stack, light theme, one accent. */
:root {
  --accent: #1d4ed8;
  --accent-dark: #1e40af;
  --ink: #0f172a;
  --muted: #475569;
  --line: #e2e8f0;
  --bg: #ffffff;
  --bg-soft: #f8fafc;
  --radius: 10px;
  --maxw: 960px;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--bg);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue",
    Arial, "Noto Sans", "PingFang SC", "Microsoft YaHei", sans-serif;
  line-height: 1.65;
  font-size: 17px;
}
a { color: var(--accent); }
img { max-width: 100%; height: auto; }

/* ---------- header / nav / footer ---------- */
.site-header {
  border-bottom: 1px solid var(--line);
  background: var(--bg);
  position: sticky;
  top: 0;
  z-index: 50;
}
.nav-inner {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0.7rem 1.25rem;
  display: flex;
  align-items: center;
  gap: 1.5rem;
}
.brand {
  font-weight: 800;
  font-size: 1.15rem;
  color: var(--ink);
  text-decoration: none;
  white-space: nowrap;
}
.brand span { color: var(--accent); }
.nav-links { display: flex; gap: 1.1rem; margin-left: auto; }
.nav-links a {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 600;
}
.nav-links a:hover, .nav-links a[aria-current="page"] { color: var(--accent); }
.site-footer {
  border-top: 1px solid var(--line);
  margin-top: 4rem;
  background: var(--bg-soft);
}
.footer-inner {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 2rem 1.25rem;
  color: var(--muted);
  font-size: 0.9rem;
  display: flex;
  flex-wrap: wrap;
  gap: 1rem 2rem;
  align-items: center;
  justify-content: space-between;
}
.footer-inner nav { display: flex; gap: 1.25rem; }
.footer-inner a { color: var(--muted); text-decoration: none; }
.footer-inner a:hover { color: var(--accent); }

/* ---------- layout / type ---------- */
.container { max-width: var(--maxw); margin: 0 auto; padding: 0 1.25rem; }
main.container { padding-top: 2.5rem; padding-bottom: 1rem; }
h1 { font-size: 2rem; line-height: 1.25; margin: 0 0 1rem; letter-spacing: -0.01em; }
h2 { font-size: 1.35rem; margin: 2.2rem 0 0.75rem; }
h3 { font-size: 1.1rem; margin: 1.6rem 0 0.5rem; }
p { margin: 0 0 1rem; }
.lead { font-size: 1.12rem; color: var(--muted); }
ul.tight li, ol.tight li { margin-bottom: 0.5rem; }

/* ---------- hero / privacy ---------- */
.hero { text-align: center; padding: 1.5rem 0 0.5rem; }
.hero p.lead { max-width: 640px; margin-left: auto; margin-right: auto; }
.privacy-banner {
  display: flex;
  gap: 0.75rem;
  align-items: flex-start;
  background: #eff6ff;
  border: 1px solid #bfdbfe;
  border-radius: var(--radius);
  padding: 0.9rem 1.1rem;
  margin: 1.5rem 0;
  font-size: 0.98rem;
}
.privacy-banner strong { display: block; }
.privacy-banner .lock { font-size: 1.4rem; line-height: 1.2; }

/* ---------- dropzone / tool ---------- */
.dropzone {
  border: 2px dashed #93c5fd;
  border-radius: var(--radius);
  background: var(--bg-soft);
  padding: 2.5rem 1.5rem;
  text-align: center;
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s;
  margin: 1.5rem 0;
}
.dropzone:hover, .dropzone.drag {
  border-color: var(--accent);
  background: #eff6ff;
}
.dropzone p { margin: 0.4rem 0; color: var(--muted); }
.dropzone .dz-title { font-size: 1.15rem; font-weight: 700; color: var(--ink); }

.btn {
  display: inline-block;
  border: 1px solid var(--line);
  background: #fff;
  color: var(--ink);
  border-radius: 8px;
  padding: 0.6rem 1.15rem;
  font-size: 0.98rem;
  font-weight: 700;
  cursor: pointer;
  text-decoration: none;
}
.btn:hover { border-color: var(--accent); color: var(--accent); }
.btn.primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}
.btn.primary:hover { background: var(--accent-dark); }
.btn:disabled { opacity: 0.55; cursor: wait; }
.btn-row { display: flex; flex-wrap: wrap; gap: 0.6rem; margin: 1rem 0; }

.tool-layout {
  display: grid;
  grid-template-columns: 190px 1fr;
  gap: 1.25rem;
  margin-top: 1.25rem;
  align-items: start;
}
.page-list {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  max-height: 640px;
  overflow-y: auto;
  padding-right: 0.25rem;
}
.page-thumb {
  border: 2px solid var(--line);
  border-radius: 8px;
  background: #fff;
  padding: 0.3rem;
  cursor: pointer;
  text-align: center;
  font-size: 0.8rem;
  color: var(--muted);
}
.page-thumb img { display: block; width: 100%; border-radius: 4px; }
.page-thumb.active { border-color: var(--accent); color: var(--accent); font-weight: 700; }
.preview-col { min-width: 0; }
.preview-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  margin-bottom: 0.5rem;
  color: var(--muted);
  font-size: 0.92rem;
}
.preview-wrap {
  position: relative;
  display: inline-block;
  max-width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
  background: #fff;
  line-height: 0;
}
.preview-wrap canvas { display: block; }
.crop-overlay {
  position: absolute;
  border: 2px solid var(--accent);
  background: rgba(29, 78, 216, 0.08);
  cursor: move;
  touch-action: none;
  line-height: normal;
  box-shadow: 0 0 0 1px rgba(255,255,255,0.7);
}
.crop-overlay .handle {
  position: absolute;
  width: 14px;
  height: 14px;
  background: var(--accent);
  border: 2px solid #fff;
  border-radius: 50%;
  touch-action: none;
}
.handle.nw { left: -8px; top: -8px; cursor: nwse-resize; }
.handle.ne { right: -8px; top: -8px; cursor: nesw-resize; }
.handle.sw { left: -8px; bottom: -8px; cursor: nesw-resize; }
.handle.se { right: -8px; bottom: -8px; cursor: nwse-resize; }
.status { min-height: 1.6em; color: var(--muted); font-size: 0.95rem; margin-top: 0.75rem; }
.status.error { color: #b91c1c; font-weight: 600; }
.hint { font-size: 0.9rem; color: var(--muted); }

/* ---------- how it works / steps ---------- */
.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin: 1.5rem 0 0.5rem;
}
.step {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.1rem 1.2rem;
  background: var(--bg-soft);
}
.step .n {
  display: inline-block;
  width: 1.7rem; height: 1.7rem;
  border-radius: 50%;
  background: var(--accent);
  color: #fff;
  font-weight: 800;
  text-align: center;
  line-height: 1.7rem;
  margin-bottom: 0.5rem;
}
.step h3 { margin: 0 0 0.4rem; font-size: 1.02rem; }
.step p { margin: 0; font-size: 0.94rem; color: var(--muted); }

/* ---------- faq ---------- */
.faq-item {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  margin-bottom: 0.9rem;
  background: #fff;
}
.faq-item h2 {
  font-size: 1.05rem;
  margin: 0;
  padding: 0.95rem 1.15rem;
}
.faq-item .a { padding: 0 1.15rem 1.05rem; color: var(--muted); }
.faq-item .a p:last-child { margin-bottom: 0; }

/* ---------- responsive ---------- */
@media (max-width: 720px) {
  body { font-size: 16px; }
  h1 { font-size: 1.6rem; }
  .tool-layout { grid-template-columns: 1fr; }
  .page-list {
    flex-direction: row;
    max-height: none;
    overflow-x: auto;
    padding-bottom: 0.5rem;
  }
  .page-thumb { min-width: 110px; }
  .steps { grid-template-columns: 1fr; }
  .nav-inner { gap: 1rem; }
  .nav-links { gap: 0.8rem; }
}