/* 样品申请页新版（sample_request/page.html，2026-09-30 起正式版）。主视觉复用 problem-guide.css 的 .pg-* 样式 */
.sr-body {
  padding: 64px 0 80px;
  scroll-margin-top: 120px;
}

.sr-body h2 {
  margin-bottom: 24px;
  color: var(--pg-ink);
  font-size: 32px;
  font-weight: 700;
  line-height: 1.25;
}

.sr-tabs {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 4px;
  padding: 4px;
  border-radius: 12px;
  background: var(--pg-bg);
}

.sr-tab {
  height: 44px;
  padding: 0 26px;
  border: 0;
  border-radius: 8px;
  background: transparent;
  color: var(--pg-gray);
  font: inherit;
  font-size: 16px;
  font-weight: 600;
  white-space: nowrap;
  cursor: pointer;
  transition: all .2s ease;
}

.sr-tab:hover {
  color: var(--pg-ink);
}

.sr-tab[aria-selected="true"] {
  background: var(--pg-red);
  box-shadow: 0 4px 12px rgba(195, 13, 35, .25);
  color: #fff;
}

.sr-tab:focus-visible,
.sr-submit:focus-visible,
.sr-again:focus-visible {
  outline: 2px solid var(--pg-red);
  outline-offset: 2px;
}

.sr-hint {
  margin-top: 12px !important;
  color: var(--pg-muted);
  font-size: 14px;
}

.sr-form {
  display: grid;
  gap: 32px;
  margin-top: 32px;
}

.sr-card {
  display: grid;
  gap: 24px;
  padding: 32px;
  border-radius: 12px;
  background: var(--pg-bg);
}

.sr-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
}

.sr-grid[hidden],
.sr-page [hidden] {
  display: none !important;
}

.sr-field {
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-width: 0;
}

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

.sr-field label {
  color: var(--pg-ink);
  font-size: 14px;
  font-weight: 600;
}

.sr-req {
  color: var(--pg-red);
}

.sr-opt {
  color: #9aa4b2;
  font-weight: 400;
}

.sr-field input,
.sr-field textarea {
  width: 100%;
  border: 1px solid #d9dee6;
  border-radius: 6px;
  background: #fff;
  color: var(--pg-text);
  font: inherit;
  font-size: 14px;
  transition: border-color .2s ease, box-shadow .2s ease;
}

.sr-field input {
  height: 46px;
  padding: 0 14px;
}

.sr-field textarea {
  min-height: 88px;
  padding: 12px 16px;
  resize: vertical;
}

.sr-field input::placeholder,
.sr-field textarea::placeholder {
  color: #9aa4b2;
}

.sr-field input:focus,
.sr-field textarea:focus {
  border-color: var(--pg-red);
  box-shadow: 0 0 0 3px rgba(195, 13, 35, .12);
  outline: 0;
}

.sr-field input[aria-invalid="true"],
.sr-field textarea[aria-invalid="true"] {
  border-color: var(--pg-red);
}

.sr-divider {
  height: 1px;
  margin: 6px 0;
  background: var(--pg-line);
}

.sr-subtitle {
  margin-bottom: -6px !important;
  color: var(--pg-ink);
  font-size: 16px;
  font-weight: 700;
}

.sr-captcha-row {
  display: flex;
  align-items: center;
  gap: 12px;
}

.sr-captcha-row input {
  flex: 1;
  min-width: 0;
}

.sr-captcha-row .code_img {
  display: flex;
  flex: none;
  align-items: center;
  width: 130px;
  height: 46px;
  overflow: hidden;
  border: 1px solid #d9dee6;
  border-radius: 6px;
  background: #fff;
  cursor: pointer;
}

.sr-captcha-row .code_img img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.sr-attach {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 12px;
  padding: 18px 24px;
  border: 1.5px dashed #d9dee6;
  border-radius: 12px;
  background: #fff;
  color: var(--pg-gray);
  font-size: 14px;
  line-height: 1.5;
}

.sr-attach strong {
  color: var(--pg-ink);
}

.sr-steps {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px 32px;
  padding: 24px !important;
  border-radius: 12px;
  background: var(--pg-bg);
  color: var(--pg-gray);
  font-size: 14px;
  line-height: 1.5;
}

.sr-steps li {
  display: flex;
  gap: 8px;
}

.sr-steps li > span {
  display: flex;
  flex: none;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--pg-red);
  color: #fff;
  font-size: 12px;
  font-weight: 700;
}

.sr-submit-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding-top: 8px;
  border-top: 1px solid var(--pg-line);
}

.sr-legal {
  color: #9aa4b2;
  font-size: 12px;
  line-height: 1.6;
}

.sr-submit,
.sr-again {
  display: inline-flex;
  align-items: center;
  height: 50px;
  padding: 0 32px;
  border: 0;
  border-radius: 6px;
  background: var(--pg-red);
  color: #fff;
  font: inherit;
  font-size: 16px;
  font-weight: 600;
  white-space: nowrap;
  cursor: pointer;
  transition: all .25s ease;
}

.sr-submit:hover,
.sr-again:hover {
  background: var(--pg-red-dark);
  box-shadow: 0 10px 24px rgba(195, 13, 35, .35);
  transform: translateY(-2px);
}

.sr-submit[disabled] {
  cursor: wait;
  opacity: .7;
  transform: none;
}

.sr-status {
  padding: 12px 16px !important;
  border-radius: 8px;
  background: #fbe9eb;
  color: var(--pg-red);
  font-size: 14px;
}

.sr-success {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  margin-top: 32px;
  padding: 56px 24px;
  border-radius: 12px;
  background: var(--pg-bg);
  text-align: center;
}

.sr-success h2 {
  margin: 0;
}

.sr-success p {
  max-width: 520px;
  color: var(--pg-gray);
  font-size: 16px;
  line-height: 1.6;
}

.sr-success-mark {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--pg-red);
  color: #fff;
  font-size: 28px;
  font-weight: 700;
}

@media (max-width: 990px) {
  .sr-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .sr-steps {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .sr-body {
    padding: 40px 0 56px;
  }

  .sr-body h2 {
    font-size: 24px;
  }

  .sr-tabs {
    display: flex;
  }

  .sr-tab {
    flex: 1;
    padding: 0 12px;
  }

  .sr-card {
    padding: 20px;
  }

  .sr-grid {
    grid-template-columns: 1fr;
    gap: 18px;
  }

  .sr-submit {
    justify-content: center;
    width: 100%;
  }
}