:root {
  --kc-ink: #142128;
  --kc-muted: #66777f;
  --kc-soft: #f5f8f9;
  --kc-card: #ffffff;
  --kc-line: #dce7e9;
  --kc-brand: #2f91a4;
  --kc-brand-strong: #217c8e;
  --kc-brand-soft: #e8f4f6;
  --kc-focus: #176d7d;
}

body:has(.knowledge-center-v2),
body:has(.article-content) {
  background: var(--kc-soft);
}

body:has(.knowledge-center-v2) .page-wrapper > .v-container,
body:has(.article-content) .page-wrapper > .v-container {
  padding-top: 18px;
}

body:has(.knowledge-center-v2) .floting-button,
body:has(.article-content) .floting-button {
  display: none !important;
}

.knowledge-center-v2,
.knowledge-center-v2 * {
  box-sizing: border-box;
}

.knowledge-center-v2 {
  width: min(100%, 1180px);
  margin: 0 auto;
  padding: 0 0 40px;
  color: var(--kc-ink);
  font-family: Inter, "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
}

.knowledge-center-v2 button,
.knowledge-center-v2 input {
  font: inherit;
}

.knowledge-center-v2 button {
  color: inherit;
}

.knowledge-center-v2 button:focus-visible,
.knowledge-center-v2 input:focus-visible,
.article-card a:focus-visible,
.article-card button:focus-visible {
  outline: 3px solid rgba(23, 109, 125, 0.28);
  outline-offset: 3px;
}

.kc-eyebrow {
  display: block;
  color: var(--kc-brand-strong);
  font-size: 0.7rem;
  font-weight: 760;
  line-height: 1.2;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.kc-hero {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 280px;
  gap: 42px;
  min-height: 316px;
  padding: 42px 44px;
  overflow: hidden;
  background: var(--kc-card);
  border: 1px solid var(--kc-line);
  border-radius: 22px;
  box-shadow: 0 18px 48px rgba(42, 77, 88, 0.07);
}

.kc-hero::after {
  content: "";
  position: absolute;
  right: -88px;
  bottom: -146px;
  width: 340px;
  height: 340px;
  border: 1px solid rgba(47, 145, 164, 0.13);
  border-radius: 50%;
  box-shadow:
    0 0 0 34px rgba(47, 145, 164, 0.035),
    0 0 0 76px rgba(47, 145, 164, 0.025);
  pointer-events: none;
}

.kc-hero-copy,
.kc-hero-aside {
  position: relative;
  z-index: 1;
}

.kc-hero h1 {
  margin: 12px 0 12px;
  color: var(--kc-ink);
  font-size: clamp(2.15rem, 3.2vw, 3.4rem);
  font-weight: 760;
  line-height: 1.05;
  letter-spacing: -0.045em;
}

.kc-hero-description {
  max-width: 660px;
  margin: 0;
  color: var(--kc-muted);
  font-size: 1rem;
  line-height: 1.75;
}

.kc-search {
  display: grid;
  grid-template-columns: 24px minmax(0, 1fr) auto;
  align-items: center;
  gap: 10px;
  width: min(100%, 650px);
  min-height: 58px;
  margin-top: 25px;
  padding: 0 15px 0 17px;
  background: #f8fafb;
  border: 1px solid #cfdddf;
  border-radius: 14px;
  transition: border-color 160ms ease, box-shadow 160ms ease, background 160ms ease;
}

.kc-search:focus-within {
  background: #ffffff;
  border-color: var(--kc-brand);
  box-shadow: 0 0 0 4px rgba(47, 145, 164, 0.1);
}

.kc-search > i {
  color: var(--kc-brand-strong);
  font-size: 1.3rem;
}

.kc-search input {
  width: 100%;
  min-width: 0;
  height: 54px;
  color: var(--kc-ink);
  background: transparent;
  border: 0;
  outline: 0;
}

.knowledge-center-v2 .kc-search input:focus,
.knowledge-center-v2 .kc-search input:focus-visible {
  outline: none;
  outline-offset: 0;
  box-shadow: none;
}

.kc-search input::placeholder {
  color: #84949b;
  opacity: 1;
}

.kc-search input::-webkit-search-cancel-button {
  display: none;
}

.kc-search kbd {
  padding: 4px 8px;
  color: #708188;
  font-family: inherit;
  font-size: 0.7rem;
  line-height: 1;
  background: #ffffff;
  border: 1px solid #d9e3e5;
  border-radius: 6px;
  box-shadow: 0 1px 0 #d5dfe1;
}

.kc-search-clear {
  padding: 7px 5px;
  color: var(--kc-brand-strong) !important;
  font-size: 0.76rem !important;
  font-weight: 650;
  background: transparent;
  border: 0;
  cursor: pointer;
}

.kc-popular {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 7px 12px;
  margin-top: 13px;
  color: #829198;
  font-size: 0.73rem;
}

.kc-popular button {
  padding: 0;
  color: #60757d;
  font-size: 0.73rem;
  background: transparent;
  border: 0;
  cursor: pointer;
  transition: color 150ms ease;
}

.kc-popular button:hover {
  color: var(--kc-brand-strong);
}

.kc-hero-aside {
  align-self: stretch;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 24px;
  background: var(--kc-brand-soft);
  border: 1px solid #d2e7ea;
  border-radius: 16px;
}

.kc-aside-index {
  color: var(--kc-brand-strong);
  font-size: 2.8rem;
  font-weight: 760;
  line-height: 1;
  letter-spacing: -0.04em;
}

.kc-hero-aside strong {
  margin-top: 5px;
  font-size: 0.94rem;
}

.kc-hero-aside p {
  margin: 12px 0 20px;
  color: #5f767e;
  font-size: 0.8rem;
  line-height: 1.65;
}

.kc-hero-aside button {
  display: flex;
  justify-content: space-between;
  align-items: center;
  min-height: 42px;
  padding: 0 13px;
  color: #ffffff !important;
  font-size: 0.8rem;
  font-weight: 650;
  background: var(--kc-brand-strong);
  border: 0;
  border-radius: 10px;
  cursor: pointer;
}

.kc-quick {
  padding: 46px 2px 18px;
}

.kc-section-heading,
.kc-group-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 30px;
  margin-bottom: 20px;
}

.kc-section-heading h2,
.kc-group-heading h2,
.kc-support h2 {
  margin: 7px 0 0;
  color: var(--kc-ink);
  font-size: clamp(1.42rem, 2vw, 1.8rem);
  font-weight: 730;
  line-height: 1.2;
  letter-spacing: -0.025em;
}

.kc-section-heading > p,
.kc-group-heading > p {
  max-width: 390px;
  margin: 0;
  color: var(--kc-muted);
  font-size: 0.82rem;
  line-height: 1.6;
  text-align: right;
}

.kc-quick-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}

.kc-quick-card {
  position: relative;
  display: grid;
  grid-template-rows: auto auto 1fr;
  gap: 7px;
  min-height: 144px;
  padding: 18px 42px 18px 18px;
  text-align: left;
  background: var(--kc-card);
  border: 1px solid var(--kc-line);
  border-radius: 14px;
  cursor: pointer;
  transition: transform 170ms ease, border-color 170ms ease, box-shadow 170ms ease;
}

.kc-quick-card:hover {
  border-color: #b8d7dc;
  box-shadow: 0 10px 26px rgba(39, 83, 94, 0.08);
  transform: translateY(-2px);
}

.kc-step {
  color: var(--kc-brand-strong);
  font-size: 0.67rem;
  font-weight: 720;
  letter-spacing: 0.12em;
}

.kc-quick-card strong {
  font-size: 0.91rem;
  line-height: 1.35;
}

.kc-quick-card > span:not(.kc-step) {
  color: var(--kc-muted);
  font-size: 0.75rem;
  line-height: 1.55;
}

.kc-quick-card > i {
  position: absolute;
  right: 16px;
  top: 18px;
  color: #83a7ae;
  font-size: 1.05rem;
}

.kc-groups {
  padding-top: 12px;
}

.kc-group {
  padding: 40px 2px 10px;
  scroll-margin-top: 86px;
  border-top: 1px solid var(--kc-line);
}

.kc-doc-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.kc-group-downloads .kc-doc-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.kc-group-rules .kc-doc-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.kc-doc-card {
  position: relative;
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr) 24px;
  gap: 14px;
  align-items: start;
  min-width: 0;
  min-height: 142px;
  padding: 18px;
  text-align: left;
  background: var(--kc-card);
  border: 1px solid var(--kc-line);
  border-radius: 15px;
  cursor: pointer;
  transition: transform 170ms ease, border-color 170ms ease, box-shadow 170ms ease;
}

.kc-group-downloads .kc-doc-card {
  grid-template-columns: 1fr 22px;
  grid-template-rows: 48px auto;
  min-height: 182px;
}

.kc-doc-card:hover {
  border-color: #acd0d6;
  box-shadow: 0 13px 31px rgba(43, 85, 96, 0.09);
  transform: translateY(-2px);
}

.kc-doc-icon {
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  color: var(--kc-brand-strong);
  font-size: 1.32rem;
  background: var(--kc-brand-soft);
  border-radius: 12px;
}

.kc-group-downloads .kc-doc-icon {
  grid-column: 1;
  grid-row: 1;
}

.kc-doc-copy {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.kc-group-downloads .kc-doc-copy {
  grid-column: 1 / 3;
  grid-row: 2;
}

.kc-doc-tag {
  margin-bottom: 7px;
  color: var(--kc-brand-strong);
  font-size: 0.65rem;
  font-weight: 720;
  line-height: 1.2;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.kc-doc-title {
  color: var(--kc-ink);
  font-size: 0.89rem;
  font-weight: 700;
  line-height: 1.42;
}

.kc-doc-description {
  display: -webkit-box;
  margin-top: 7px;
  overflow: hidden;
  color: var(--kc-muted);
  font-size: 0.74rem;
  line-height: 1.55;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
}

.kc-doc-arrow {
  align-self: center;
  color: #75969d;
  font-size: 1rem;
  transition: color 160ms ease, transform 160ms ease;
}

.kc-group-downloads .kc-doc-arrow {
  grid-column: 2;
  grid-row: 1;
}

.kc-doc-card:hover .kc-doc-arrow {
  color: var(--kc-brand-strong);
  transform: translateX(3px);
}

.kc-loading,
.kc-error,
.kc-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 260px;
  margin: 24px 0;
  padding: 32px;
  color: var(--kc-muted);
  text-align: center;
  background: var(--kc-card);
  border: 1px solid var(--kc-line);
  border-radius: 16px;
}

.kc-loading {
  flex-direction: row;
  gap: 12px;
}

.kc-spinner {
  width: 18px;
  height: 18px;
  border: 2px solid #c9dadd;
  border-top-color: var(--kc-brand-strong);
  border-radius: 50%;
  animation: kc-spin 0.8s linear infinite;
}

@keyframes kc-spin {
  to {
    transform: rotate(360deg);
  }
}

.kc-error strong,
.kc-empty strong {
  margin-top: 8px;
  color: var(--kc-ink);
  font-size: 1.05rem;
}

.kc-error span,
.kc-empty > span {
  margin-top: 7px;
  font-size: 0.85rem;
}

.kc-error button,
.kc-empty button {
  min-height: 42px;
  margin-top: 18px;
  padding: 0 16px;
  color: #ffffff !important;
  font-size: 0.8rem;
  font-weight: 650;
  background: var(--kc-brand-strong);
  border: 0;
  border-radius: 10px;
  cursor: pointer;
}

.kc-empty > i {
  color: var(--kc-brand-strong);
  font-size: 2rem;
}

.kc-empty > div {
  display: flex;
  gap: 10px;
}

.kc-empty > div button:last-child {
  color: var(--kc-brand-strong) !important;
  background: #ffffff;
  border: 1px solid #bfd5d9;
}

.kc-support {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 34px;
  margin-top: 50px;
  padding: 32px 36px;
  background: var(--kc-brand-soft);
  border: 1px solid #d0e5e8;
  border-radius: 18px;
}

.kc-support p {
  max-width: 620px;
  margin: 10px 0 0;
  color: #5c737b;
  font-size: 0.82rem;
  line-height: 1.65;
}

.kc-support-actions {
  display: flex;
  flex: 0 0 auto;
  gap: 10px;
}

.kc-support-actions button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  min-height: 46px;
  padding: 0 16px;
  color: var(--kc-brand-strong) !important;
  font-size: 0.8rem;
  font-weight: 660;
  background: #ffffff;
  border: 1px solid #bfd8dc;
  border-radius: 11px;
  cursor: pointer;
}

.kc-support-actions .kc-primary-action {
  color: #ffffff !important;
  background: var(--kc-brand-strong);
  border-color: var(--kc-brand-strong);
}

/* Knowledge detail: keep the original Markdown and subscription actions, but
   replace the template's oversized blue headings and narrow card treatment. */
.article-card[data-v-6050e7fa] {
  width: min(100%, 980px);
  margin: 0 auto 30px;
  overflow: hidden;
  background: #ffffff !important;
  border: 1px solid var(--kc-line) !important;
  border-radius: 18px !important;
  box-shadow: 0 18px 48px rgba(42, 77, 88, 0.07) !important;
}

.article-card[data-v-6050e7fa] > .v-card-title {
  padding: 30px 34px 24px !important;
  color: var(--kc-ink) !important;
  background: #ffffff;
  border-bottom: 1px solid #e5edef;
}

.article-card[data-v-6050e7fa] > .v-card-title .v-col:first-child {
  overflow: visible !important;
  color: var(--kc-ink) !important;
  font-size: clamp(1.45rem, 2.6vw, 2.15rem) !important;
  font-weight: 740 !important;
  line-height: 1.28 !important;
  letter-spacing: -0.03em;
  text-overflow: initial !important;
  white-space: normal !important;
}

.article-card[data-v-6050e7fa] > .v-card-title .v-btn {
  color: var(--kc-brand-strong) !important;
  background: var(--kc-brand-soft) !important;
  border-radius: 10px !important;
  box-shadow: none !important;
}

.article-card[data-v-6050e7fa] > .v-divider {
  display: none;
}

.article-card[data-v-6050e7fa] > .v-card-text {
  padding: 0 !important;
}

.article-content {
  width: min(100%, 820px);
  margin: 0 auto;
  padding: 34px 34px 54px;
  color: #33464e;
  font-size: 0.97rem;
  line-height: 1.85;
}

.article-content h1,
.article-content h2,
.article-content h3,
.article-content h4,
.article-content h5,
.article-content h6 {
  margin: 2em 0 0.75em !important;
  color: var(--kc-ink) !important;
  font-weight: 710 !important;
  line-height: 1.4 !important;
  letter-spacing: -0.02em;
}

.article-content h1:first-child,
.article-content h2:first-child {
  margin-top: 0 !important;
}

.article-content h1 {
  font-size: 1.65rem !important;
}

.article-content h2 {
  padding-bottom: 10px;
  font-size: 1.4rem !important;
  border-bottom: 1px solid #e4edef;
}

.article-content h3 {
  font-size: 1.16rem !important;
}

.article-content h4,
.article-content h5,
.article-content h6 {
  font-size: 1rem !important;
}

.article-content p,
.article-content li {
  color: #41555d;
  font-size: 0.97rem !important;
  line-height: 1.85;
}

.article-content a {
  color: var(--kc-brand-strong) !important;
  text-decoration: underline !important;
  text-decoration-color: rgba(33, 124, 142, 0.35) !important;
  text-underline-offset: 3px;
}

.article-content blockquote {
  margin: 24px 0 !important;
  padding: 17px 19px !important;
  color: #405760;
  background: var(--kc-brand-soft) !important;
  border: 0 !important;
  border-left: 3px solid var(--kc-brand) !important;
  border-radius: 0 10px 10px 0 !important;
  box-shadow: none !important;
}

.article-content code {
  color: #245866 !important;
  background: #edf5f6 !important;
  border: 0 !important;
}

.article-content pre {
  color: #dceff2 !important;
  background: #19343c !important;
  border-radius: 12px !important;
}

.article-content img {
  display: block;
  max-width: 100% !important;
  height: auto !important;
  margin: 26px auto !important;
  border: 1px solid #dfe9eb;
  border-radius: 12px !important;
  box-shadow: 0 12px 32px rgba(41, 71, 80, 0.09);
}

.article-content table {
  display: block;
  max-width: 100%;
  overflow-x: auto;
  border: 1px solid #dfe9eb;
  border-radius: 10px;
}

@media (max-width: 1080px) {
  .kc-hero {
    grid-template-columns: minmax(0, 1fr) 240px;
    gap: 24px;
    padding: 34px;
  }

  .kc-group-downloads .kc-doc-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .kc-group-downloads .kc-doc-card {
    grid-template-columns: 46px minmax(0, 1fr) 24px;
    grid-template-rows: auto;
    min-height: 142px;
  }

  .kc-group-downloads .kc-doc-icon,
  .kc-group-downloads .kc-doc-copy,
  .kc-group-downloads .kc-doc-arrow {
    grid-column: auto;
    grid-row: auto;
  }
}

@media (max-width: 820px) {
  .knowledge-center-v2 {
    width: 100%;
  }

  .kc-hero {
    grid-template-columns: 1fr;
    min-height: auto;
  }

  .kc-hero-aside {
    display: none;
  }

  .kc-quick-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .kc-group-rules .kc-doc-grid {
    grid-template-columns: 1fr;
  }

  .kc-support {
    align-items: flex-start;
    flex-direction: column;
  }
}

@media (max-width: 600px) {
  body:has(.knowledge-center-v2) .page-wrapper > .v-container,
  body:has(.article-content) .page-wrapper > .v-container {
    padding: 8px 14px 20px !important;
  }

  .knowledge-center-v2 {
    padding-bottom: 22px;
  }

  .kc-hero {
    padding: 24px 20px 22px;
    border-radius: 16px;
    box-shadow: 0 10px 30px rgba(42, 77, 88, 0.055);
  }

  .kc-hero::after {
    display: none;
  }

  .kc-hero h1 {
    margin: 9px 0 9px;
    font-size: 2rem;
    letter-spacing: -0.035em;
  }

  .kc-hero-description {
    font-size: 0.88rem;
    line-height: 1.65;
  }

  .kc-search {
    min-height: 52px;
    margin-top: 18px;
    padding-inline: 14px;
    border-radius: 12px;
  }

  .kc-search input {
    height: 50px;
    font-size: 0.86rem;
  }

  .kc-search kbd {
    display: none;
  }

  .kc-popular {
    gap: 6px 10px;
    margin-top: 11px;
  }

  .kc-popular button:nth-of-type(n + 4) {
    display: none;
  }

  .kc-quick {
    padding: 32px 0 14px;
  }

  .kc-section-heading,
  .kc-group-heading {
    align-items: flex-start;
    flex-direction: column;
    gap: 9px;
    margin-bottom: 15px;
  }

  .kc-section-heading h2,
  .kc-group-heading h2,
  .kc-support h2 {
    font-size: 1.32rem;
  }

  .kc-section-heading > p,
  .kc-group-heading > p {
    max-width: none;
    font-size: 0.78rem;
    text-align: left;
  }

  .kc-quick-grid {
    gap: 9px;
  }

  .kc-quick-card {
    min-height: 132px;
    padding: 15px 34px 14px 14px;
    border-radius: 12px;
  }

  .kc-quick-card strong {
    font-size: 0.84rem;
  }

  .kc-quick-card > span:not(.kc-step) {
    display: -webkit-box;
    overflow: hidden;
    font-size: 0.7rem;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 3;
  }

  .kc-quick-card > i {
    right: 12px;
    top: 15px;
  }

  .kc-group {
    padding: 30px 0 8px;
    scroll-margin-top: 68px;
  }

  .kc-doc-grid,
  .kc-group-downloads .kc-doc-grid,
  .kc-group-rules .kc-doc-grid {
    grid-template-columns: 1fr;
    gap: 9px;
  }

  .kc-doc-card,
  .kc-group-downloads .kc-doc-card {
    grid-template-columns: 42px minmax(0, 1fr) 20px;
    grid-template-rows: auto;
    gap: 12px;
    min-height: 116px;
    padding: 15px;
    border-radius: 13px;
  }

  .kc-group-downloads .kc-doc-icon,
  .kc-group-downloads .kc-doc-copy,
  .kc-group-downloads .kc-doc-arrow {
    grid-column: auto;
    grid-row: auto;
  }

  .kc-doc-icon {
    width: 42px;
    height: 42px;
    font-size: 1.2rem;
    border-radius: 11px;
  }

  .kc-doc-title {
    font-size: 0.86rem;
  }

  .kc-doc-description {
    font-size: 0.72rem;
  }

  .kc-support {
    gap: 20px;
    margin-top: 34px;
    padding: 24px 20px;
    border-radius: 15px;
  }

  .kc-support-actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
    width: 100%;
    gap: 8px;
  }

  .kc-support-actions button {
    min-width: 0;
    padding-inline: 10px;
    font-size: 0.76rem;
  }

  .article-card[data-v-6050e7fa] {
    margin-bottom: 22px;
    border-radius: 15px !important;
  }

  .article-card[data-v-6050e7fa] > .v-card-title {
    padding: 21px 19px 18px !important;
  }

  .article-card[data-v-6050e7fa] > .v-card-title .v-col:first-child {
    font-size: 1.4rem !important;
  }

  .article-card[data-v-6050e7fa] > .v-card-title .v-btn {
    width: 100%;
    min-height: 42px;
    margin-top: 6px;
  }

  .article-content {
    padding: 24px 19px 38px;
    font-size: 0.92rem;
  }

  .article-content h1 {
    font-size: 1.42rem !important;
  }

  .article-content h2 {
    font-size: 1.23rem !important;
  }

  .article-content h3 {
    font-size: 1.08rem !important;
  }
}

@media (prefers-reduced-motion: reduce) {
  .knowledge-center-v2 *,
  .knowledge-center-v2 *::before,
  .knowledge-center-v2 *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}