/* Figma 1092:127 附图：图片几何由 1440px × 4/3 换算为 1920px 基准。 */
html.authenticity-html,
html.authenticity-html body {
  margin: 0;
  background: #f7f9fa;
  color: #272727;
  font-family: MiSans, "PingFang SC", -apple-system, BlinkMacSystemFont, "Microsoft YaHei", sans-serif;
  font-synthesis: none;
}

.authenticity-page {
  --authenticity-unit: min(1px, calc(100vw / 1920));
  background: #f7f9fa;
}
.authenticity-page *,
.authenticity-page *::before,
.authenticity-page *::after { box-sizing: border-box; }
.authenticity-container { width: min(calc(1210.67 * var(--authenticity-unit)), calc(100% - 64px)); margin-inline: auto; }
.authenticity-nowrap { white-space: nowrap; }
.authenticity-section > .authenticity-container { position: relative; }
/* 附图中的两条分隔线位于既有栏间留白内，与正文容器等宽。 */
.authenticity-section + .authenticity-section > .authenticity-container::before {
  content: "";
  position: absolute;
  top: -52px;
  inset-inline: 0;
  height: 1px;
  background: #ccc;
  pointer-events: none;
}

/* 原图和参考截图构图一致，cover 保持人物比例；左侧渐变保证标题可读。 */
.authenticity-hero {
  position: relative;
  isolation: isolate;
  min-height: calc(581.33 * var(--authenticity-unit));
  background-color: #83c3f4;
}
.authenticity-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: linear-gradient(90deg, #fff 0%, rgba(255,255,255,.8) 10%, rgba(255,255,255,0) 42%);
  pointer-events: none;
}
.authenticity-hero__image {
  position: absolute;
  inset: 0;
  z-index: -2;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 49%;
}
.authenticity-hero__image--h5 { display: none; }
.authenticity-hero__inner {
  width: min(calc(1568 * var(--authenticity-unit)), calc(100% - 64px));
  min-height: inherit;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: flex-end;
  gap: 16px;
  padding-top: 120px;
  padding-bottom: calc(170.67 * var(--authenticity-unit));
}
.authenticity-hero h1 {
  margin: 0;
  color: #25313d;
  font-size: 40px;
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: 0;
  white-space: pre-line;
  overflow-wrap: anywhere;
  max-width: 100%;
}
.authenticity-section--upgrade { padding-top: 151px; }
.authenticity-grid {
  display: grid;
  grid-template-columns: minmax(0, 380fr) minmax(0, 449fr);
  gap: calc(105.33 * var(--authenticity-unit));
  align-items: start;
}
.authenticity-grid > * { min-width: 0; }
.authenticity-page h2 {
  margin: 0;
  color: #ff4e00;
  font-size: 24px;
  font-weight: 600;
  line-height: 30px;
  letter-spacing: 0;
  white-space: pre-line;
  overflow-wrap: anywhere;
}
.authenticity-copy--upgrade h2 { margin-bottom: 79px; }
.authenticity-page p {
  margin: 0;
  color: #000;
  font-size: 16px;
  font-weight: 400;
  line-height: 31px;
  letter-spacing: 0;
  white-space: pre-line;
  overflow-wrap: anywhere;
}
.authenticity-copy--upgrade p { text-align: justify; letter-spacing: -0.5px; overflow-wrap: break-word; }
.authenticity-hero__description { max-width: 100%; }
/* 固定版位沿用附图尺寸；图片拉伸撑满，不裁剪。 */
.authenticity-scanner-frame { width: 100%; aspect-ratio: 923 / 1144; }
.authenticity-scanner {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: fill;
  border-radius: calc(58.67 * var(--authenticity-unit));
}
.authenticity-section--steps { padding-top: 128px; }
.authenticity-steps {
  display: grid;
  gap: 90px;
  margin: 66px 0 0;
  padding: 0;
  list-style: none;
}
.authenticity-step-copy { padding-top: 3px; }
.authenticity-steps strong {
  display: block;
  margin-bottom: 7px;
  color: #ff4e00;
  font-size: 16px;
  font-weight: 600;
  line-height: 24px;
  white-space: pre-line;
  overflow-wrap: anywhere;
}
/* 动态步骤图使用原设计版位，灰色空图位仅用于本地预览。 */
.authenticity-step-frame { width: 100%; aspect-ratio: 449 / 245; }
.authenticity-step-image,
.authenticity-placeholder {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: fill;
  border-radius: calc(53.33 * var(--authenticity-unit));
}
.authenticity-section--result { padding-block: 128px 151px; }
.authenticity-phone-frame { width: 100%; aspect-ratio: 899 / 1139; }
.authenticity-phone-frame img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: fill;
  border-radius: calc(53.33 * var(--authenticity-unit));
}

@media (max-width: 959px) {
  .authenticity-container { width: min(560px, calc(100% - 48px)); }
  .authenticity-section + .authenticity-section > .authenticity-container::before { top: -36px; }
  .authenticity-hero { min-height: 320px; }
  .authenticity-hero__image--pc { display: none; }
  .authenticity-hero__image--h5 { display: block; object-position: 62% 49%; }
  .authenticity-hero__inner { padding-bottom: 48px; }
  .authenticity-hero h1 { font-size: 30px; }
  .authenticity-grid { grid-template-columns: 1fr; gap: 36px; }
  .authenticity-section--upgrade { padding-top: 68px; }
  .authenticity-page h2 { font-size: 22px; }
  .authenticity-copy--upgrade h2 { margin-bottom: 32px; }
  .authenticity-page p { line-height: 29px; }
  .authenticity-scanner-frame,
  .authenticity-phone-frame { max-width: 460px; margin-inline: auto; }
  .authenticity-scanner { width: 100%; }
  .authenticity-section--steps { padding-top: 76px; }
  .authenticity-steps { margin-top: 40px; gap: 48px; }
  .authenticity-step-image,
  .authenticity-placeholder { border-radius: 28px; }
  .authenticity-section--result { padding-block: 76px 72px; }
  .authenticity-scanner,
  .authenticity-phone-frame img { border-radius: 32px; }
}
@media (max-width: 390px) {
  .authenticity-container { width: calc(100% - 32px); }
  .authenticity-hero { min-height: 280px; }
  .authenticity-hero h1 { font-size: 26px; }
}