/* 技术支持页 — 对齐 zhongshuweb-main/support，主色 #00A85A */
.support-page {
  --support-primary: var(--theme-default-color, #00a85a);
  --support-primary-dark: color-mix(in srgb, var(--theme-default-color, #00a85a) 78%, #000);
  --support-dark: #101828;
  --support-text: #4b5563;
  --support-border: #e5e7eb;
  --support-shell: min(1200px, calc(100% - 48px));
}

body.support-page {
  background: #fff;
  color: var(--support-dark);
  line-height: normal;
  overflow-x: clip;
}

.support-main {
  background: #fff;
}

/* Hero */
.support-hero {
  position: relative;
  overflow: hidden;
  background: #0a1628;
}

.support-hero-media {
  position: absolute;
  inset: 0;
}

.support-hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.support-hero-container {
  position: relative;
}

/* Section common */
.support-section-kicker {
  margin: 0 0 10px;
  font-size: 13px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--theme-default-font-color, var(--support-dark));
}

.support-section-title {
  margin: 0 0 16px;
  font-size: clamp(1.75rem, 3vw, 2.25rem);
  font-weight: 600;
  color: var(--support-dark);
}

.support-section-divider {
  width: 48px;
  height: 3px;
  margin-bottom: 32px;
  background: var(--support-primary);
  border-radius: 2px;
}

.support-reveal {
  opacity: 0;
  transform: translate3d(0, 24px, 0);
  transition: opacity 0.45s ease, transform 0.45s cubic-bezier(0.16, 1, 0.3, 1);
}

.support-reveal.is-visible {
  opacity: 1;
  transform: none;
}

/* Documents */
.support-docs {
  padding: 72px 0 56px;
}

.support-docs-shell,
.support-videos-shell {
  width: var(--support-shell);
  margin: 0 auto;
  min-width: 0;
  max-width: 100%;
}

.support-docs-heading {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 36px;
}

.support-doc-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: flex-end;
}

.support-filter-btn {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  padding: 0 18px;
  border: 1px solid var(--support-border);
  border-radius: 999px;
  font-size: 14px;
  color: var(--support-text);
  text-decoration: none;
  background: #fff;
  transition: border-color 0.2s, color 0.2s, background 0.2s;
}

.support-filter-btn:hover,
.support-filter-btn.is-active {
  border-color: var(--support-primary);
  color: var(--theme-default-button-text-color, #fff);
  background: var(--support-primary);
}

.support-doc-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.support-doc-item {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 20px;
  align-items: center;
  padding: 22px 24px;
  border: 1px solid var(--support-border);
  border-radius: 12px;
  background: #fff;
  transition: box-shadow 0.2s, border-color 0.2s;
}

.support-doc-item:hover {
  border-color: color-mix(in srgb, var(--support-primary) 35%, var(--support-border));
  box-shadow: 0 8px 24px color-mix(in srgb, var(--support-primary) 8%, transparent);
}

.support-doc-item.is-hidden {
  display: none;
}

.support-doc-icon-wrap {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  color: var(--support-primary);
  background: color-mix(in srgb, var(--support-primary) 10%, #fff);
  border-radius: 10px;
}

.support-doc-icon-wrap img,
.support-doc-icon-wrap svg {
  display: block;
  width: 28px;
  height: 28px;
}

.support-doc-meta-top {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 8px;
}

.support-doc-badge {
  padding: 2px 10px;
  font-size: 12px;
  color: var(--theme-default-font-color, var(--support-dark));
  background: color-mix(in srgb, var(--theme-default-color, var(--support-primary)) 12%, #fff);
  border-radius: 4px;
}

.support-doc-format {
  font-size: 12px;
  color: #9ca3af;
}

.support-doc-title {
  margin: 0 0 8px;
  font-size: 18px;
  font-weight: 600;
  color: var(--support-dark);
}

.support-doc-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 0;
  font-size: 13px;
  color: #9ca3af;
}

.support-doc-action {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 8px;
}

.support-doc-size {
  font-size: 12px;
  color: #9ca3af;
}

.support-doc-download {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 40px;
  padding: 0 16px;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 500;
  color: var(--theme-default-button-text-color, #fff);
  text-decoration: none;
  background: var(--support-primary);
  border: 1px solid var(--theme-default-button-border-color, transparent);
  transition: background 0.2s;
}

.support-doc-download:hover {
  background: var(--support-primary-dark);
  color: var(--theme-default-button-text-color, #fff);
}

.support-doc-download img {
  width: 18px;
  height: 18px;
  filter: brightness(0) invert(1);
}

.support-pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 32px;
}

.support-pagination-link,
.support-pagination-nav {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 40px;
  min-height: 40px;
  padding: 0 14px;
  border: 1px solid var(--support-border);
  border-radius: 999px;
  font-size: 14px;
  color: var(--support-text);
  text-decoration: none;
  background: #fff;
  transition: border-color 0.2s, color 0.2s, background 0.2s;
}

.support-pagination-link:hover,
.support-pagination-nav:hover,
.support-pagination-link.is-active {
  border-color: var(--support-primary);
  color: #fff;
  background: var(--support-primary);
}

.support-pagination-ellipsis {
  color: #9ca3af;
  font-size: 14px;
}

/* Videos */
.support-videos {
  padding: 56px 0 72px;
  background: #f8fafc;
}

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

.support-video-card {
  overflow: hidden;
  border-radius: 12px;
  background: #fff;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
}

.support-video-media {
  position: relative;
  aspect-ratio: 3 / 2;
  overflow: hidden;
  background: #e5e7eb;
}

.support-video-media-placeholder {
  background: linear-gradient(145deg, #d7e5f5 0%, #eff5fb 100%);
}

.support-video-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.support-video-play {
  position: absolute;
  left: 50%;
  top: 50%;
  z-index: 1;
  transform: translate(-50%, -50%);
  width: 48px;
  height: 48px;
  display: inline-grid;
  place-items: center;
  margin: 0;
  padding: 0;
  line-height: 0;
  border: 1px solid rgba(255, 255, 255, 0.86);
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.98);
  box-shadow: 0 16px 36px rgba(1, 18, 49, 0.2);
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.support-video-play:hover {
  transform: translate(-50%, -50%) scale(1.04);
}

.support-video-play img {
  width: 18px;
  height: 18px;
  display: block;
  transform: translateX(1px);
}

.support-video-duration,
.support-video-tag {
  position: absolute;
  z-index: 2;
  padding: 4px 8px;
  font-size: 12px;
  color: #fff;
  background: rgba(0, 0, 0, 0.55);
  border-radius: 4px;
}

.support-video-duration {
  right: 10px;
  bottom: 10px;
}

.support-video-tag {
  left: 10px;
  top: 10px;
  color: var(--support-dark);
  background: rgba(255, 255, 255, 0.92);
}

.support-video-body {
  padding: 16px 18px 20px;
}

.support-video-title {
  margin: 0 0 12px;
  font-size: 16px;
  font-weight: 600;
  color: var(--support-dark);
}

.support-video-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  font-size: 13px;
  color: var(--support-text);
}

.support-video-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 0;
  border: 0;
  font-size: 13px;
  font-weight: 500;
  color: var(--theme-default-font-color, var(--support-dark));
  background: none;
  cursor: pointer;
}

.support-video-link img {
  width: 14px;
  height: 14px;
}

.support-empty {
  padding: 40px 24px;
  text-align: center;
  color: var(--support-text);
  border: 1px dashed var(--support-border);
  border-radius: 12px;
  background: #fff;
}

.support-empty-video {
  grid-column: 1 / -1;
}

/* Service */
.support-service {
  padding: 72px 0 96px;
}

.support-service-shell {
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: 32px;
  align-items: stretch;
  width: var(--support-shell);
  margin: 0 auto;
}

.support-contact-card {
  box-sizing: border-box;
  height: 100%;
  padding: 32px 28px;
  color: #fff;
  background: var(--support-primary);
  border-radius: 16px;
  border: none;
  box-shadow: none;
}

.support-contact-card-top h2 {
  margin: 16px 0 0;
  font-size: 1.5rem;
  font-weight: 600;
  line-height: 1.35;
  color: #fff;
}

.support-contact-main-icon {
  color: rgba(255, 255, 255, 0.9);
}

.support-contact-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  width: 20px;
  min-width: 20px;
  height: 20px;
  min-height: 20px;
  overflow: visible;
  color: rgba(255, 255, 255, 0.9);
}

/* 与参考站一致：小尺寸图标容器 + 内嵌 14px 图形（参考站约 28px 盒 / 18px 标） */
body.support-page .support-contact-icon img {
  display: block;
  width: 14px !important;
  height: 14px !important;
  max-width: none;
  max-height: none;
  object-fit: contain;
  filter: brightness(0) invert(1);
  opacity: 0.92;
}

.support-contact-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin-top: 28px;
}

.support-contact-row {
  display: flex;
  gap: 12px;
  align-items: flex-start;
}

.support-contact-row .support-contact-icon {
  margin-top: 2px;
}

.support-contact-row p {
  margin: 0 0 4px;
  font-size: 13px;
  line-height: 1.4;
  opacity: 0.75;
  color: #fff;
}

.support-contact-row strong {
  font-size: 15px;
  font-weight: 500;
  line-height: 1.5;
  color: #fff;
}

.support-contact-row a {
  color: inherit;
  text-decoration: none;
}

.support-form-panel {
  min-height: 100%;
  box-sizing: border-box;
  padding: 32px 32px 18px;
  border: 1px solid #e5e7eb;
  border-radius: 16px;
  background: #fff;
  box-shadow: none;
}

.support-form-panel .support-section-kicker {
  margin: 0 0 10px;
  line-height: 1.4;
}

.support-form-title {
  margin: 0;
  font-size: 1.5rem;
  font-weight: 600;
  line-height: 1.35;
  color: #101828;
}

.support-form-panel .support-section-divider {
  width: 48px;
  height: 3px;
  margin-bottom: 32px;
  background: var(--support-primary);
  border-radius: 2px;
}

.support-form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-top: 28px;
}

.support-form-field > span:first-child {
  display: block;
  margin-bottom: 8px;
  font-size: 14px;
  font-weight: 500;
  line-height: 1.4;
  color: #101828;
}

.support-input-wrap {
  display: block;
}

.support-input-wrap input,
.support-region-text-input,
.support-region-select {
  width: 100%;
  min-height: 44px;
  padding: 0 14px;
  border: 1px solid var(--support-border);
  border-radius: 8px;
  font-size: 14px;
  color: var(--support-dark);
  background: #fff;
  outline: none;
  transition: border-color 0.2s;
}

.support-input-wrap input::placeholder,
.support-region-text-input::placeholder {
  color: #9ca3af;
}

.support-input-wrap input:focus,
.support-region-text-input:focus,
.support-region-select:focus {
  border-color: var(--support-primary);
}

.support-form-field.is-invalid .support-input-wrap input,
.support-form-field.is-invalid .support-region-text-input,
.support-form-field.is-invalid .support-region-select {
  border-color: #dc2626;
}

.support-form-field-email,
.support-form-field-region {
  grid-column: 1 / -1;
}

.support-region-picker {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  width: 100%;
}

.support-region-select {
  flex: 1;
  min-width: 100px;
}

.support-region-select:disabled {
  color: #9ca3af;
  background: #fff;
}

.support-region-sep {
  color: #9ca3af;
}

.support-form__body .support-form-topics {
  margin-top: 24px;
}

.support-form__actions {
  padding-top: 18px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.support-form-topics-label {
  display: block;
  margin-bottom: 12px;
  font-size: 14px;
  font-weight: 500;
  line-height: 1.4;
  color: #101828;
}

.support-topic-group {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.support-topic-btn {
  min-height: 38px;
  padding: 0 16px;
  border: 1px solid var(--support-border);
  border-radius: 999px;
  font-size: 14px;
  color: var(--support-text);
  background: #fff;
  cursor: pointer;
  transition: all 0.2s;
}

.support-topic-btn.is-active {
  border-color: var(--support-primary);
  color: var(--theme-default-button-text-color, #fff);
  background: var(--support-primary);
}

.support-topic-group.is-invalid .support-topic-btn:not(.is-active) {
  border-color: #fca5a5;
}

.support-submit-btn {
  width: 100%;
  min-height: 48px;
  margin: 0;
  border: 1px solid var(--theme-default-button-border-color, transparent);
  border-radius: 8px;
  font-size: 16px;
  font-weight: 600;
  color: var(--theme-default-button-text-color, #fff);
  background: var(--support-primary);
  cursor: pointer;
  transition: background 0.2s;
}

.support-submit-btn:hover {
  background: var(--support-primary-dark);
}

.support-submit-btn:disabled {
  opacity: 0.65;
  cursor: not-allowed;
}

.support-form-feedback-wrap {
  flex-shrink: 0;
  min-height: 21px;
  height: 21px;
  display: flex;
  align-items: flex-start;
  overflow: hidden;
}

.support-form-feedback {
  margin: 0;
  width: 100%;
  font-size: 14px;
  line-height: 1.5;
}

.support-form-feedback.is-error {
  color: #dc2626;
}

.support-form-feedback.is-success {
  color: var(--support-primary);
}

.support-form-feedback[hidden] {
  visibility: hidden;
}

/* Toast & video modal */
.support-toast {
  position: fixed;
  bottom: 32px;
  left: 50%;
  z-index: 200;
  padding: 12px 24px;
  font-size: 14px;
  color: #fff;
  background: var(--support-dark);
  border-radius: 8px;
  opacity: 0;
  visibility: hidden;
  transform: translateX(-50%) translateY(12px);
  transition: opacity 0.3s ease, transform 0.3s ease, visibility 0.3s ease;
  pointer-events: none;
}

.support-toast.is-visible {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

.support-video-modal {
  position: fixed;
  inset: 0;
  z-index: 300;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.support-video-modal[hidden] {
  display: none;
}

.support-video-modal__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.75);
}

.support-video-modal__dialog {
  position: relative;
  width: min(960px, 100%);
  padding: 20px;
  background: #101828;
  border-radius: 12px;
}

.support-video-modal__close {
  position: absolute;
  top: 8px;
  right: 12px;
  border: 0;
  font-size: 28px;
  line-height: 1;
  color: #fff;
  background: none;
  cursor: pointer;
}

.support-video-modal__title {
  margin: 0 0 12px;
  padding-right: 40px;
  font-size: 18px;
  color: #fff;
}

.support-video-modal__dialog video {
  width: 100%;
  max-height: 70vh;
  border-radius: 8px;
  background: #000;
}

@media (max-width: 1024px) {
  .support-video-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .support-service-shell {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .support-docs,
  .support-videos,
  .support-service {
    padding: 56px 0;
  }

  .support-docs-shell,
  .support-videos-shell,
  .support-service-shell {
    width: min(1200px, calc(100% - 32px));
  }

  .support-docs-heading {
    flex-direction: column;
    align-items: stretch;
    min-width: 0;
    width: 100%;
  }

  .support-doc-filters {
    justify-content: flex-start;
    flex-wrap: wrap;
    gap: 8px;
    width: 100%;
    min-width: 0;
    max-width: 100%;
    box-sizing: border-box;
    overflow: visible;
  }

  .support-filter-btn {
    flex: 0 1 auto;
    max-width: 100%;
    min-height: 36px;
    padding: 6px 14px;
    font-size: 13px;
    line-height: 1.35;
    white-space: normal;
    text-align: center;
  }

  .support-doc-item {
    position: relative;
    grid-template-columns: auto 1fr;
    grid-template-rows: auto auto;
    gap: 12px 14px;
    align-items: start;
    padding: 18px 16px;
  }

  .support-doc-icon-wrap {
    grid-column: 1;
    grid-row: 1;
    width: 48px;
    height: 48px;
    flex-shrink: 0;
  }

  .support-doc-icon-wrap img,
  .support-doc-icon-wrap svg {
    width: 24px;
    height: 24px;
  }

  .support-doc-body {
    grid-column: 2;
    grid-row: 1;
    min-width: 0;
  }

  .support-doc-item:has(.support-doc-size) .support-doc-body {
    padding-right: 44px;
  }

  .support-doc-title {
    font-size: 16px;
    line-height: 1.4;
    margin-bottom: 6px;
  }

  .support-doc-meta {
    gap: 8px;
    font-size: 12px;
  }

  .support-doc-action {
    grid-column: 1 / -1;
    grid-row: 2;
    flex-direction: row;
    align-items: center;
    justify-content: stretch;
    gap: 12px;
    padding-top: 0;
    border-top: none;
  }

  .support-doc-size {
    position: absolute;
    top: 20px;
    right: 16px;
    z-index: 1;
    font-size: 12px;
    line-height: 1.2;
    color: #9ca3af;
    white-space: nowrap;
  }

  .support-doc-download {
    justify-content: center;
    width: 100%;
    min-width: 0;
  }

  .support-video-grid,
  .support-form-grid {
    grid-template-columns: 1fr;
  }

  .support-form-field-region {
    grid-column: 1 / -1;
  }

  .support-toast {
    width: calc(100% - 32px);
    text-align: center;
  }
}

@media (max-width: 480px) {
  .support-video-grid {
    grid-template-columns: 1fr;
  }
}

/* 售后服务区块：覆盖 body.news-page / 全站 theme 变量，与 zhongshuweb-main 一致 */
body.support-page.news-page .support-service {
  background: #fff;
}

body.support-page.news-page .support-service-shell {
  color: #101828;
}

body.support-page .support-contact-card,
body.support-page .support-contact-card h2,
body.support-page .support-contact-card p,
body.support-page .support-contact-card strong,
body.support-page .support-contact-card a {
  color: #fff;
}

body.support-page .support-contact-card {
  background: var(--support-primary);
}

body.support-page .support-contact-card-top h2 {
  margin: 16px 0 0;
  font-size: 1.5rem;
  font-weight: 600;
  line-height: 1.35;
}

body.support-page .support-contact-row p {
  margin: 0 0 4px;
  font-size: 13px;
  line-height: 1.4;
  opacity: 0.75;
}

body.support-page .support-contact-row strong {
  font-size: 15px;
  font-weight: 500;
  line-height: 1.5;
}

body.support-page .support-form-panel {
  background: #fff;
  border-color: #e5e7eb;
}

body.support-page .support-form-title {
  margin: 0;
  font-size: 1.5rem;
  font-weight: 600;
  line-height: 1.35;
  color: #101828;
}

body.support-page .support-form-panel .support-section-kicker {
  margin: 0 0 10px;
}

body.support-page .support-form-panel .support-section-divider {
  margin-bottom: 32px;
}

body.support-page .support-submit-btn,
body.support-page .support-topic-btn.is-active {
  background: var(--support-primary);
}

body.support-page .support-submit-btn:hover {
  background: var(--support-primary-dark);
}

body.support-page .support-topic-btn.is-active {
  border-color: var(--support-primary);
}