:root {
  --navy: #173B63;
  --navy-dark: #102a48;
  --orange: #F28C28;
  --orange-dark: #d9761a;
  --bg: #F7F9FC;
  --ink: #253247;
  --muted: #5d6b80;
  --border: #DCE3EC;
  --ok: #1f7a4d;
  --err: #b3261e;
  --radius: 14px;
  --shadow: 0 1px 2px rgba(16, 42, 72, .06), 0 8px 24px rgba(16, 42, 72, .06);
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 16px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

h1, h2, h3 { color: var(--navy); line-height: 1.2; margin: 0 0 .5em; }
h1 { font-size: 2rem; letter-spacing: -.02em; }
h2 { font-size: 1.5rem; margin-top: 2.4rem; }
h3 { font-size: 1.1rem; }
p { margin: 0 0 1rem; }
a { color: var(--navy); }
a:not(.btn):hover { color: var(--orange-dark); }

.wrap { max-width: 1080px; margin: 0 auto; padding: 0 20px; }

/* ---------- header ---------- */
.site-header {
  background: #fff;
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 30;
}
.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  height: 62px;
}
.logo {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-weight: 700;
  color: var(--navy);
  text-decoration: none;
  font-size: 1.02rem;
  letter-spacing: -.01em;
}
.logo-mark {
  width: 26px; height: 26px;
  border-radius: 7px;
  background: var(--navy);
  position: relative;
  flex: none;
}
.logo-mark::before, .logo-mark::after {
  content: "";
  position: absolute;
  background: var(--orange);
  border-radius: 1px;
}
.logo-mark::before { left: 6px; top: 6px; width: 14px; height: 3px; }
.logo-mark::after { left: 6px; top: 11px; width: 9px; height: 9px; }

.site-nav { display: flex; gap: 22px; font-size: .92rem; }
.site-nav a { color: var(--muted); text-decoration: none; }
.site-nav a:hover { color: var(--navy); }
@media (max-width: 640px) { .site-nav { display: none; } }

/* ---------- hero ---------- */
.hero { padding: 40px 0 8px; text-align: center; }
.hero h1 { margin-bottom: .35em; }
.hero .lede { color: var(--muted); max-width: 660px; margin: 0 auto 6px; font-size: 1.05rem; }
.badge-row { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; margin-top: 14px; }
.badge {
  font-size: .78rem;
  color: var(--navy);
  background: #eaf1f9;
  border: 1px solid #d6e2f0;
  padding: 4px 10px;
  border-radius: 999px;
  white-space: nowrap;
}

/* ---------- tool ---------- */
.tool {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 22px;
  margin: 24px 0 8px;
}
.tool-head {
  display: flex; align-items: center; justify-content: space-between;
  gap: 12px; margin-bottom: 16px;
}
.tool-head h2 { margin: 0; font-size: 1.05rem; }
.tool-head .step-pill {
  font-size: .75rem; text-transform: uppercase; letter-spacing: .08em;
  color: var(--muted);
}

.dropzone {
  border: 2px dashed #b9c8da;
  border-radius: 12px;
  background: #fbfcfe;
  padding: 42px 20px;
  text-align: center;
  cursor: pointer;
  transition: border-color .15s, background .15s;
}
.dropzone:hover, .dropzone.hover { border-color: var(--orange); background: #fff9f2; }
.dropzone .dz-icon { width: 46px; height: 46px; margin: 0 auto 12px; display: block; }
.dropzone .dz-title { font-weight: 600; color: var(--navy); font-size: 1.05rem; }
.dropzone .dz-sub { color: var(--muted); font-size: .89rem; margin-top: 4px; }
.dropzone .dz-cta {
  display: inline-block; margin-top: 14px;
  background: var(--orange); color: #fff; font-weight: 600;
  padding: 11px 22px; border-radius: 9px; font-size: .95rem;
  border: 0; cursor: pointer;
}
.dropzone .dz-cta:hover { background: var(--orange-dark); }

.filebar {
  display: flex; align-items: center; gap: 12px;
  background: #f4f7fb; border: 1px solid var(--border);
  border-radius: 10px; padding: 10px 14px; margin-bottom: 16px;
}
.filebar .fname { font-weight: 600; color: var(--navy); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.filebar .fmeta { color: var(--muted); font-size: .84rem; }
.filebar .spacer { flex: 1; }
.linkbtn {
  background: none; border: 0; color: var(--navy); font-size: .86rem;
  text-decoration: underline; cursor: pointer; padding: 4px; font-family: inherit;
}
.linkbtn:hover { color: var(--err); }

.controls { display: grid; gap: 16px; margin-bottom: 18px; }
.control-row { display: grid; gap: 8px; }
.control-label {
  font-size: .8rem; font-weight: 700; text-transform: uppercase;
  letter-spacing: .07em; color: var(--muted);
}
.segmented { display: flex; flex-wrap: wrap; gap: 8px; }
.segmented button {
  border: 1px solid var(--border); background: #fff; color: var(--ink);
  border-radius: 9px; padding: 9px 13px; font-size: .88rem; cursor: pointer;
  font-family: inherit; line-height: 1.2; text-align: center;
}
.segmented button .seg-sub { display: block; font-size: .72rem; color: var(--muted); margin-top: 2px; }
.segmented button[aria-pressed="true"] {
  border-color: var(--navy); background: #eef3fa; color: var(--navy); font-weight: 600;
  box-shadow: inset 0 0 0 1px var(--navy);
}
.segmented button[aria-pressed="true"] .seg-sub { color: var(--navy); }

.hint {
  font-size: .85rem; color: var(--muted); background: #f4f7fb;
  border-left: 3px solid var(--orange); padding: 8px 12px; border-radius: 0 8px 8px 0;
}
.hint strong { color: var(--navy); }

.toggle { display: inline-flex; align-items: center; gap: 8px; font-size: .9rem; cursor: pointer; }
.toggle input { width: 16px; height: 16px; accent-color: var(--navy); }

/* preview */
.preview-grid { display: grid; grid-template-columns: minmax(0,1fr) 260px; gap: 18px; align-items: start; }
@media (max-width: 820px) { .preview-grid { grid-template-columns: 1fr; } }

.page-stage {
  position: relative; background: #eef1f6; border: 1px solid var(--border);
  border-radius: 10px; padding: 12px; display: flex; justify-content: center;
}
.page-canvas-wrap { position: relative; line-height: 0; max-width: 100%; }
.page-canvas-wrap canvas { display: block; max-width: 100%; height: auto; border-radius: 2px; box-shadow: 0 1px 4px rgba(0,0,0,.14); }
.pager { display: flex; align-items: center; justify-content: center; gap: 10px; margin-top: 10px; font-size: .85rem; color: var(--muted); }

.crop-layer { position: absolute; inset: 0; }
.crop-rect {
  position: absolute; border: 2px solid var(--orange);
  background: rgba(242,140,40,.10); cursor: move; touch-action: none;
}
.crop-rect.is-off { border-color: #9aa8bb; background: rgba(154,168,187,.14); }
.crop-rect.is-selected { border-color: var(--navy); background: rgba(23,59,99,.12); }
.crop-rect .tag {
  position: absolute; top: -1px; left: -1px; transform: translateY(-100%);
  background: var(--orange); color: #fff; font-size: 11px; font-weight: 700;
  padding: 1px 6px; border-radius: 4px 4px 0 0; white-space: nowrap;
}
.crop-rect.is-off .tag { background: #9aa8bb; }
.crop-rect.is-selected .tag { background: var(--navy); }
.crop-rect .handle {
  position: absolute; width: 12px; height: 12px; background: #fff;
  border: 2px solid var(--navy); border-radius: 2px;
}
.crop-rect .handle.nw { left: -7px; top: -7px; cursor: nwse-resize; }
.crop-rect .handle.ne { right: -7px; top: -7px; cursor: nesw-resize; }
.crop-rect .handle.sw { left: -7px; bottom: -7px; cursor: nesw-resize; }
.crop-rect .handle.se { right: -7px; bottom: -7px; cursor: nwse-resize; }
.crop-rect .handle.e  { right: -7px; top: 50%; margin-top: -6px; cursor: ew-resize; }
.crop-rect .handle.s  { left: 50%; bottom: -7px; margin-left: -6px; cursor: ns-resize; }

.label-list { display: grid; gap: 8px; }
.label-item {
  display: flex; align-items: center; gap: 10px; border: 1px solid var(--border);
  border-radius: 9px; padding: 8px 10px; background: #fff; cursor: pointer; font-size: .87rem;
}
.label-item.sel { border-color: var(--navy); box-shadow: inset 0 0 0 1px var(--navy); }
.label-item .num {
  width: 22px; height: 22px; border-radius: 6px; background: var(--navy); color: #fff;
  display: grid; place-items: center; font-size: .76rem; font-weight: 700; flex: none;
}
.label-item.is-off .num { background: #9aa8bb; }
.label-item .li-meta { color: var(--muted); font-size: .75rem; white-space: nowrap; }
.label-item .li-actions { margin-left: auto; display: flex; gap: 6px; }
.iconbtn {
  border: 1px solid var(--border); background: #fff; border-radius: 7px;
  width: 30px; height: 28px; cursor: pointer; font-size: .8rem; color: var(--navy);
  display: grid; place-items: center; padding: 0; font-family: inherit;
}
.iconbtn:hover { border-color: var(--navy); }
.iconbtn.wide { width: auto; padding: 0 8px; }

.actions { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; margin-top: 18px; }
.btn {
  border: 0; border-radius: 10px; padding: 13px 24px; font-size: .98rem; font-weight: 600;
  cursor: pointer; font-family: inherit; line-height: 1.2;
}
.btn-primary, .btn-primary:hover, .btn-primary:visited { background: var(--orange); color: #fff; }
.btn-primary:hover { background: var(--orange-dark); }
.btn-ghost, .btn-ghost:hover { color: var(--navy); }
.btn-primary:disabled { background: #c9d3e0; cursor: not-allowed; }
.btn-ghost { background: #fff; color: var(--navy); border: 1px solid var(--border); }
.btn-ghost:hover { border-color: var(--navy); }
.btn-sm { padding: 9px 16px; font-size: .88rem; }

.msg { border-radius: 9px; padding: 12px 14px; font-size: .9rem; margin-top: 14px; display: none; }
.msg.show { display: block; }
.msg.error { background: #fdeceb; border: 1px solid #f6c9c6; color: var(--err); }
.msg.info { background: #eef3fa; border: 1px solid #d6e2f0; color: var(--navy); }
.msg.ok { background: #eaf6ef; border: 1px solid #c6e6d3; color: var(--ok); }

.progress { height: 6px; background: #e6ecf4; border-radius: 99px; overflow: hidden; margin-top: 14px; display: none; }
.progress.show { display: block; }
.progress > div { height: 100%; width: 0; background: var(--orange); transition: width .25s; }

/* result */
.result { display: none; }
.result.show { display: block; }
.result-grid { display: grid; grid-template-columns: 300px minmax(0,1fr); gap: 20px; align-items: start; }
@media (max-width: 760px) { .result-grid { grid-template-columns: 1fr; } }
.result-summary dl { margin: 0; display: grid; grid-template-columns: auto 1fr; gap: 6px 12px; font-size: .9rem; }
.result-summary dt { color: var(--muted); }
.result-summary dd { margin: 0; font-weight: 600; color: var(--navy); }
.thumbs { display: grid; grid-template-columns: repeat(auto-fill, minmax(104px, 1fr)); gap: 12px; }
.thumb { text-align: center; }
.thumb canvas { width: 100%; height: auto; border: 1px solid var(--border); border-radius: 4px; background: #fff; }
.thumb span { font-size: .72rem; color: var(--muted); }
.print-steps { margin: 10px 0 0; padding-left: 20px; font-size: .88rem; color: var(--muted); }
.print-steps li { margin-bottom: 3px; }

/* ---------- content sections ---------- */
.section { padding: 8px 0; }
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 14px; }
.card {
  background: #fff; border: 1px solid var(--border); border-radius: 12px; padding: 16px 18px;
}
.card h3 { font-size: .98rem; margin-bottom: 6px; }
.card p { margin: 0; color: var(--muted); font-size: .9rem; }
.steps { counter-reset: s; list-style: none; padding: 0; display: grid; gap: 14px; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }
.steps li { counter-increment: s; background: #fff; border: 1px solid var(--border); border-radius: 12px; padding: 16px 18px; }
.steps li::before {
  content: counter(s);
  display: grid; place-items: center; width: 24px; height: 24px; border-radius: 50%;
  background: var(--navy); color: #fff; font-size: .8rem; font-weight: 700; margin-bottom: 8px;
}
.steps strong { display: block; color: var(--navy); margin-bottom: 4px; }
.steps p { margin: 0; color: var(--muted); font-size: .9rem; }

.faq details {
  border: 1px solid var(--border); border-radius: 10px; background: #fff;
  padding: 12px 16px; margin-bottom: 10px;
}
.faq summary { cursor: pointer; font-weight: 600; color: var(--navy); }
.faq p { margin: 8px 0 0; color: var(--muted); font-size: .92rem; }

.privacy-note {
  display: flex; gap: 12px; align-items: flex-start;
  background: #eef3fa; border: 1px solid #d6e2f0; border-radius: 12px; padding: 14px 16px;
  font-size: .9rem; color: var(--navy);
}
.privacy-note svg { flex: none; margin-top: 2px; }

.related { display: grid; gap: 10px; grid-template-columns: repeat(auto-fit, minmax(240px,1fr)); }
.related a {
  display: block; background: #fff; border: 1px solid var(--border); border-radius: 10px;
  padding: 12px 15px; text-decoration: none; font-size: .9rem; color: var(--navy); font-weight: 600;
}
.related a span { display: block; font-weight: 400; color: var(--muted); font-size: .82rem; margin-top: 2px; }
.related a:hover { border-color: var(--orange); }

.site-footer {
  margin-top: 48px; border-top: 1px solid var(--border); background: #fff;
  padding: 26px 0; font-size: .86rem; color: var(--muted);
}
.site-footer .wrap { display: flex; flex-wrap: wrap; gap: 14px 26px; align-items: center; justify-content: space-between; }
.site-footer nav { display: flex; gap: 18px; flex-wrap: wrap; }
.site-footer a { color: var(--muted); text-decoration: none; }
.site-footer a:hover { color: var(--navy); }

/* utility */
.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}
.hidden { display: none !important; }

/* ---------- article pages ---------- */
.doc { max-width: 800px; padding-bottom: 8px; }
.doc .kicker {
  font-size: .78rem; text-transform: uppercase; letter-spacing: .09em;
  color: var(--orange-dark); font-weight: 700; margin-bottom: 8px;
}
.doc h1 { font-size: 1.85rem; }
.doc .lede { color: var(--muted); font-size: 1.02rem; }
.doc h2 { font-size: 1.28rem; margin-top: 2.2rem; }
.doc h3 { font-size: 1rem; margin-top: 1.4rem; }
.doc p, .doc li { color: #33415a; }
.doc ul, .doc ol { padding-left: 22px; }
.doc li { margin-bottom: 5px; }
.doc table { width: 100%; border-collapse: collapse; font-size: .9rem; margin: 12px 0 18px; }
.doc th, .doc td { border: 1px solid var(--border); padding: 8px 10px; text-align: left; vertical-align: top; }
.doc th { background: #f4f7fb; color: var(--navy); font-weight: 600; }
.doc .cta-box {
  background: #fff; border: 1px solid var(--border); border-radius: 12px;
  padding: 16px 18px; margin: 20px 0; display: flex; gap: 14px; align-items: center; flex-wrap: wrap;
  box-shadow: var(--shadow);
}
.doc .cta-box p { margin: 0; font-size: .9rem; color: var(--muted); flex: 1 1 320px; }
.doc .cta-box strong { color: var(--navy); }
.doc code {
  background: #eef2f8; border-radius: 4px; padding: 1px 5px; font-size: .88em;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}
.doc .note {
  border-left: 3px solid var(--border); padding: 4px 0 4px 14px; color: var(--muted);
  font-size: .9rem; margin: 16px 0;
}