.pdftool-scope {
  --pdftool-ink: #182338;
  --pdftool-muted: #667085;
  --pdftool-line: #dce4ee;
  --pdftool-paper: #ffffff;
  --pdftool-canvas: #f4f7fa;
  --pdftool-blue: #1565d8;
  --pdftool-blue-dark: #0e4fae;
  --pdftool-cyan: #22a8b8;
  --pdftool-warm: #f2b544;
  --pdftool-danger: #b42318;
  --pdftool-success: #087a55;
  position: relative;
  isolation: isolate;
  color: var(--pdftool-ink);
  font-family: ui-rounded, "SF Pro Rounded", "PingFang SC", "Microsoft YaHei", sans-serif;
  line-height: 1.65;
  padding: 28px 0 52px;
}

.pdftool-scope,
.pdftool-scope * {
  box-sizing: border-box;
}

.pdftool-scope [hidden] {
  display: none !important;
}

.pdftool-scope h1,
.pdftool-scope h2,
.pdftool-scope h3,
.pdftool-scope p {
  margin: 0;
}

.pdftool-scope a {
  text-decoration: none;
}

.pdftool-kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--pdftool-blue);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .13em;
  text-transform: uppercase;
}

.pdftool-kicker::before {
  content: "";
  width: 20px;
  height: 2px;
  border-radius: 2px;
  background: var(--pdftool-warm);
}

.pdftool-hero {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(260px, .65fr);
  gap: 48px;
  align-items: center;
  min-height: 420px;
  padding: 56px clamp(28px, 6vw, 76px);
  overflow: hidden;
  border: 1px solid #cddaea;
  border-radius: 30px 8px 30px 8px;
  background:
    radial-gradient(circle at 78% 18%, rgba(34, 168, 184, .19), transparent 28%),
    linear-gradient(135deg, #f9fbfd 0%, #edf5fb 60%, #f7f1e5 100%);
  box-shadow: 0 24px 80px rgba(31, 59, 93, .12);
}

.pdftool-hero__copy {
  position: relative;
  z-index: 2;
}

.pdftool-hero__copy h1 {
  max-width: 760px;
  margin-top: 14px;
  font-family: "Songti SC", "STSong", serif;
  font-size: clamp(38px, 5vw, 66px);
  line-height: 1.12;
  letter-spacing: -.035em;
}

.pdftool-hero__copy > p {
  max-width: 680px;
  margin-top: 22px;
  color: var(--pdftool-muted);
  font-size: 17px;
}

.pdftool-hero__actions,
.pdftool-modal__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.pdftool-button {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  justify-content: center;
  padding: 10px 19px;
  border: 1px solid var(--pdftool-line);
  border-radius: 12px 4px 12px 4px;
  background: var(--pdftool-paper);
  color: var(--pdftool-ink);
  font: inherit;
  font-weight: 750;
  cursor: pointer;
  transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease, background .18s ease;
}

.pdftool-button:hover {
  transform: translateY(-2px);
  border-color: #a9bfd9;
  box-shadow: 0 10px 24px rgba(31, 59, 93, .12);
}

.pdftool-button:focus-visible,
.pdftool-tool-card:focus-visible,
.pdftool-modal__close:focus-visible {
  outline: 3px solid rgba(21, 101, 216, .25);
  outline-offset: 3px;
}

.pdftool-button--primary {
  border-color: var(--pdftool-blue);
  background: var(--pdftool-blue);
  color: #fff !important;
}

.pdftool-button--primary:hover {
  border-color: var(--pdftool-blue-dark);
  background: var(--pdftool-blue-dark);
}

.pdftool-button--quiet {
  background: rgba(255, 255, 255, .72);
  color: var(--pdftool-ink) !important;
}

.pdftool-button:disabled {
  opacity: .48;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

.pdftool-hero__visual {
  position: relative;
  min-height: 290px;
}

.pdftool-paper {
  position: absolute;
  width: 205px;
  height: 265px;
  border: 1px solid rgba(24, 35, 56, .14);
  border-radius: 8px 30px 8px 30px;
  background: #fff;
  box-shadow: 0 24px 55px rgba(24, 35, 56, .18);
}

.pdftool-paper--back {
  left: 48%;
  top: 4px;
  transform: translateX(-50%) rotate(10deg);
  background: #dceaf4;
}

.pdftool-paper--front {
  left: 44%;
  top: 18px;
  display: flex;
  flex-direction: column;
  gap: 17px;
  padding: 38px 30px;
  transform: translateX(-50%) rotate(-5deg);
}

.pdftool-paper--front span {
  color: var(--pdftool-blue);
  font-size: 42px;
  font-weight: 900;
  letter-spacing: -.07em;
}

.pdftool-paper--front i {
  display: block;
  width: 100%;
  height: 8px;
  border-radius: 10px;
  background: #dfe6ee;
}

.pdftool-paper--front i:nth-of-type(2) { width: 78%; }
.pdftool-paper--front i:nth-of-type(3) { width: 52%; background: #f4c970; }

.pdftool-hero__badge {
  position: absolute;
  right: 0;
  bottom: 18px;
  z-index: 2;
  padding: 10px 15px;
  border: 1px solid rgba(255, 255, 255, .75);
  border-radius: 999px;
  background: rgba(24, 35, 56, .9);
  color: #fff;
  font-size: 13px;
  font-weight: 800;
  box-shadow: 0 12px 30px rgba(24, 35, 56, .2);
}

.pdftool-section,
.pdftool-guide,
.pdftool-trust,
.pdftool-page-head,
.pdftool-policy {
  margin-top: 44px;
}

.pdftool-section__heading,
.pdftool-page-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
}

.pdftool-section__heading h2,
.pdftool-guide h2,
.pdftool-page-head h1 {
  margin-top: 6px;
  font-family: "Songti SC", "STSong", serif;
  font-size: clamp(30px, 4vw, 44px);
  line-height: 1.2;
}

.pdftool-page-head {
  padding: 30px 0 24px;
  border-bottom: 1px solid var(--pdftool-line);
}

.pdftool-page-head p,
.pdftool-guide__intro p {
  margin-top: 10px;
  color: var(--pdftool-muted);
}

.pdftool-text-link {
  color: var(--pdftool-blue) !important;
  font-weight: 800;
}

.pdftool-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  margin-top: 22px;
}

.pdftool-tool-card {
  position: relative;
  min-height: 168px;
  padding: 20px;
  overflow: hidden;
  border: 1px solid var(--pdftool-line);
  border-radius: 18px 5px 18px 5px;
  background: var(--pdftool-paper);
  color: var(--pdftool-ink);
  text-align: left;
  font: inherit;
  cursor: pointer;
  transition: transform .2s ease, border-color .2s ease, box-shadow .2s ease;
}

.pdftool-tool-card::after {
  content: "";
  position: absolute;
  right: -24px;
  bottom: -32px;
  width: 90px;
  height: 90px;
  border-radius: 50%;
  background: rgba(21, 101, 216, .07);
}

.pdftool-tool-card:hover {
  z-index: 1;
  transform: translateY(-4px);
  border-color: #8fb1d6;
  box-shadow: 0 16px 36px rgba(31, 59, 93, .13);
}

.pdftool-tool-card__icon {
  display: grid;
  width: 43px;
  height: 43px;
  place-items: center;
  border-radius: 13px 4px 13px 4px;
  background: #edf4fb;
  font-size: 22px;
}

.pdftool-tool-card h3 {
  margin-top: 16px;
  font-size: 17px;
}

.pdftool-tool-card p {
  margin-top: 4px;
  color: var(--pdftool-muted);
  font-size: 13px;
}

.pdftool-guide {
  display: grid;
  grid-template-columns: minmax(240px, .8fr) minmax(0, 1.2fr);
  gap: 42px;
  padding: 38px;
  border: 1px solid var(--pdftool-line);
  border-radius: 8px 26px 8px 26px;
  background: #fff;
}

.pdftool-steps {
  display: grid;
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.pdftool-steps li {
  display: grid;
  grid-template-columns: 48px 1fr;
  gap: 15px;
  align-items: start;
  padding: 15px 0;
  border-bottom: 1px dashed var(--pdftool-line);
}

.pdftool-steps li:last-child { border-bottom: 0; }
.pdftool-steps li > span { color: var(--pdftool-cyan); font-weight: 900; letter-spacing: .06em; }
.pdftool-steps p { margin-top: 2px; color: var(--pdftool-muted); font-size: 14px; }

.pdftool-trust {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  overflow: hidden;
  border: 1px solid var(--pdftool-line);
  border-radius: 16px;
  background: var(--pdftool-ink);
  color: #fff;
}

.pdftool-trust div {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 24px 28px;
  border-right: 1px solid rgba(255, 255, 255, .13);
}

.pdftool-trust div:last-child { border-right: 0; }
.pdftool-trust strong { font-size: 22px; }
.pdftool-trust span { color: #b8c6d8; font-size: 13px; }

.pdftool-loading,
.pdftool-error-state {
  grid-column: 1 / -1;
  padding: 34px;
  border: 1px dashed var(--pdftool-line);
  border-radius: 16px;
  background: var(--pdftool-canvas);
  color: var(--pdftool-muted);
  text-align: center;
}

.pdftool-error-state { color: var(--pdftool-danger); }

.pdftool-category {
  margin-top: 38px;
}

.pdftool-category__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--pdftool-line);
}

.pdftool-category__head h2 { font-size: 21px; }
.pdftool-category__head span { color: var(--pdftool-muted); font-size: 13px; }

.pdftool-policy {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.pdftool-policy article {
  display: grid;
  grid-template-columns: 48px 1fr;
  gap: 15px;
  padding: 24px;
  border: 1px solid var(--pdftool-line);
  border-radius: 17px 5px 17px 5px;
  background: #fff;
}

.pdftool-policy article > span { color: var(--pdftool-cyan); font-weight: 900; }
.pdftool-policy h2 { font-size: 18px; }
.pdftool-policy p { margin-top: 6px; color: var(--pdftool-muted); font-size: 14px; }

.pdftool-modal {
  position: fixed;
  inset: 0;
  z-index: 2000;
  display: grid;
  place-items: center;
  padding: 24px;
}

.pdftool-modal__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(15, 24, 38, .68);
  backdrop-filter: blur(7px);
}

.pdftool-modal__panel {
  position: relative;
  z-index: 1;
  width: min(600px, 100%);
  max-height: calc(100vh - 48px);
  overflow: auto;
  padding: 30px;
  border: 1px solid rgba(255, 255, 255, .7);
  border-radius: 24px 7px 24px 7px;
  background: #fff;
  box-shadow: 0 32px 100px rgba(0, 0, 0, .28);
}

.pdftool-modal__close {
  position: absolute;
  top: 14px;
  right: 16px;
  width: 38px;
  height: 38px;
  border: 1px solid var(--pdftool-line);
  border-radius: 50%;
  background: #fff;
  color: var(--pdftool-ink);
  font-size: 25px;
  line-height: 1;
  cursor: pointer;
}

.pdftool-modal__eyebrow { color: var(--pdftool-cyan); font-size: 12px; font-weight: 850; letter-spacing: .12em; }
.pdftool-modal__title { padding-right: 48px; margin-top: 4px !important; font-family: "Songti SC", "STSong", serif; font-size: 30px; }
.pdftool-modal__description { margin-top: 6px !important; color: var(--pdftool-muted); }

.pdftool-options {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-top: 20px;
}

.pdftool-options:empty { display: none; }

.pdftool-field {
  display: grid;
  gap: 6px;
  color: #344054;
  font-size: 13px;
  font-weight: 750;
}

.pdftool-field--wide { grid-column: 1 / -1; }

.pdftool-field input,
.pdftool-field select,
.pdftool-field textarea {
  width: 100%;
  min-height: 42px;
  padding: 9px 11px;
  border: 1px solid #cfd8e3;
  border-radius: 9px;
  background: #fff;
  color: var(--pdftool-ink);
  font: inherit;
  font-weight: 500;
}

.pdftool-dropzone {
  display: grid;
  justify-items: center;
  gap: 5px;
  margin-top: 20px;
  padding: 30px 18px;
  border: 1.5px dashed #9fb6cf;
  border-radius: 16px 5px 16px 5px;
  background: #f6f9fc;
  text-align: center;
  cursor: pointer;
  transition: border-color .18s ease, background .18s ease, transform .18s ease;
}

.pdftool-dropzone:hover,
.pdftool-dropzone.is-dragging {
  transform: translateY(-2px);
  border-color: var(--pdftool-blue);
  background: #edf5ff;
}

.pdftool-dropzone__icon {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border-radius: 50%;
  background: var(--pdftool-blue);
  color: #fff;
  font-size: 23px;
}

.pdftool-dropzone small { color: var(--pdftool-muted); }

.pdftool-progress {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 10px;
  align-items: center;
  margin-top: 16px;
  color: var(--pdftool-muted);
  font-size: 12px;
}

.pdftool-progress__track { height: 8px; overflow: hidden; border-radius: 999px; background: #e4eaf0; }
.pdftool-progress__bar { width: 0; height: 100%; border-radius: inherit; background: linear-gradient(90deg, var(--pdftool-blue), var(--pdftool-cyan)); transition: width .16s ease; }

.pdftool-result {
  margin-top: 16px;
  padding: 13px 15px;
  border: 1px solid #a9dfc9;
  border-radius: 10px;
  background: #ecfdf5;
  color: var(--pdftool-success);
  font-size: 14px;
  overflow-wrap: anywhere;
}

.pdftool-result.is-error { border-color: #f3b8b3; background: #fff1f0; color: var(--pdftool-danger); }
.pdftool-result a { margin-left: 8px; color: var(--pdftool-success) !important; font-weight: 800; }
.pdftool-result textarea { width: 100%; min-height: 120px; margin-top: 10px; padding: 10px; border: 1px solid #b7c5d4; border-radius: 8px; resize: vertical; font: 12px/1.5 monospace; }
.pdftool-modal__actions { justify-content: flex-end; }

@media (max-width: 980px) {
  .pdftool-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .pdftool-hero { grid-template-columns: 1fr; }
  .pdftool-hero__visual { display: none; }
}

@media (max-width: 680px) {
  .pdftool-scope { padding-top: 16px; }
  .pdftool-hero { min-height: auto; padding: 34px 22px; border-radius: 22px 6px 22px 6px; }
  .pdftool-hero__copy h1 { font-size: 39px; }
  .pdftool-section__heading,
  .pdftool-page-head { align-items: flex-start; flex-direction: column; }
  .pdftool-grid,
  .pdftool-policy { grid-template-columns: 1fr; }
  .pdftool-guide { grid-template-columns: 1fr; padding: 26px 22px; }
  .pdftool-trust { grid-template-columns: 1fr; }
  .pdftool-trust div { border-right: 0; border-bottom: 1px solid rgba(255, 255, 255, .13); }
  .pdftool-trust div:last-child { border-bottom: 0; }
  .pdftool-modal { padding: 10px; }
  .pdftool-modal__panel { max-height: calc(100vh - 20px); padding: 25px 18px; }
  .pdftool-options { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  .pdftool-scope *,
  .pdftool-scope *::before,
  .pdftool-scope *::after {
    scroll-behavior: auto !important;
    transition-duration: .01ms !important;
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
  }
}