/* 基础重置和通用样式 */
    *, *::before, *::after {
      margin: 0;
      padding: 0;
    }
    
    html {
      scroll-behavior: smooth;
    }
    
    body {
      font-family: var(--site-font-sans);
    } 
	  
    
    button::-moz-focus-inner { border: none; }
    
    /* 新闻内容页样式*/
    
    /* 响应式媒体查询*/
  

/* News detail redesign aligned with Tech & Info */
:root {
  --nd-ink: #151515;
  --nd-text: #f4f1ea;
  --nd-muted: #b9b0a5;
  --nd-dim: #7c746b;
  --nd-red: #c00;
  --nd-sidebar-accent: #24a65a;
  --nd-warm: #d4c7ad;
  --nd-container: 1280px;
  --nd-reader: 820px;
}

/* Page-specific banner media variables. Layout and typography are defined in site-banner.css. */
.nd-hero {
  --site-banner-bg: #111;
  --site-banner-image:
    linear-gradient(90deg, rgba(8, 8, 8, 0.98) 0%, rgba(8, 8, 8, 0.82) 52%, rgba(8, 8, 8, 0.5) 100%),
    url("../images/tech-info/tone-lab-hero.jpg") center right / cover no-repeat;
  --site-banner-shade:
    radial-gradient(circle at 18% 62%, rgba(204, 0, 0, 0.22), transparent 28%),
    linear-gradient(180deg, transparent 60%, #111 100%);
  --site-banner-lead-color: var(--nd-muted);
  --site-banner-meta-color: var(--nd-warm);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: #fff;
  color: var(--nd-ink);
  font-family: var(--site-font-sans);
  line-height: 1.7;
}

body img {
  display: block;
  max-width: 100%;
}

.nd-container {
  width: min(var(--nd-container), calc(100% - 40px));
  margin: 0 auto;
}

.nd-page {
  overflow: visible;
}

.nd-cover {
  margin-top: 42px;
}

.nd-cover__image {
  overflow: hidden;
  border-radius: 8px;
  background: #151515;
}

.nd-cover__image {
  height: clamp(300px, 48vw, 560px);
  box-shadow: 0 24px 55px rgba(0, 0, 0, 0.22);
}

.nd-cover__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.nd-figure__image img {
  display: block;
  width: auto;
  max-width: 100%;
  height: auto;
  object-fit: contain;
  object-position: center;
  border-radius: 8px;
}

.nd-layout {
  display: grid;
  grid-template-columns: 260px minmax(0, 1fr);
  gap: 54px;
  align-items: start;
  padding: 0 0 46px;
  border-bottom: 1px solid var(--nd-ink);
}

.nd-sidebar {
  position: sticky;
  top: 96px;
  align-self: start;
}

.nd-sidebar-panel {
  padding: 22px;
  border-radius: 8px;
  background: linear-gradient(145deg, #1b1b1b 0%, #24211f 100%);
  color: var(--nd-text);
  box-shadow: 0 18px 36px rgba(0, 0, 0, 0.16);
}

.nd-sidebar-section + .nd-sidebar-section {
  margin-top: 20px;
  padding-top: 18px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.nd-sidebar-label {
  display: block;
  margin-bottom: 12px;
  color: var(--nd-sidebar-accent);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.nd-sidebar-meta {
  display: grid;
  gap: 12px;
  margin: 0;
}

.nd-sidebar-meta__row {
  display: grid;
  gap: 3px;
}

.nd-sidebar-meta .nd-sidebar-meta__row--inline {
  display: flex;
  align-items: baseline;
  gap: 8px;
}

.nd-sidebar-meta .nd-sidebar-meta__row--inline dt,
.nd-sidebar-meta .nd-sidebar-meta__row--inline dd {
  white-space: nowrap;
}

.nd-sidebar-meta dt,
.nd-sidebar-meta dd {
  margin: 0;
}

.nd-sidebar-meta dt {
  color: #dfd6c6;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.nd-sidebar-meta dd {
  color: #bdb4a7;
  font-size: 0.72rem;
  font-weight: 400;
  line-height: 1.45;
}

.nd-sidebar-meta a {
  color: inherit;
  font-weight: inherit;
  text-decoration-color: rgba(189, 180, 167, 0.45);
  overflow-wrap: anywhere;
}

.nd-sidebar-meta a:hover {
  color: #fff;
  text-decoration-color: #fff;
}

.nd-sidebar-nav {
  display: grid;
  gap: 10px;
}

.nd-sidebar-nav a {
  position: relative;
  display: block;
  padding-left: 13px;
  color: var(--nd-muted);
  font-size: 0.88rem;
  font-weight: 400;
  line-height: 1.35;
  text-decoration: none;
  transition: color 0.22s ease, text-shadow 0.22s ease;
}

.nd-sidebar-nav a::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.58em;
  width: 5px;
  height: 5px;
  border-radius: 999px;
  background: var(--nd-sidebar-accent);
  transform: translateY(-50%);
  transition: width 0.22s ease, height 0.22s ease, background 0.22s ease, box-shadow 0.22s ease;
}

.nd-sidebar-nav a:hover {
  color: var(--nd-text);
}

.nd-sidebar-nav a.is-active,
.nd-sidebar-nav a[aria-current="true"] {
  color: #fff;
  text-shadow: 0 0 18px rgba(36, 166, 90, 0.28);
}

.nd-sidebar-nav a.is-active::before,
.nd-sidebar-nav a[aria-current="true"]::before {
  width: 7px;
  height: 7px;
  background: #2fd874;
  box-shadow: 0 0 0 4px rgba(47, 216, 116, 0.14), 0 0 14px rgba(47, 216, 116, 0.5);
}

.nd-sidebar-panel p {
  margin: 0;
  color: var(--nd-muted);
  font-size: 0.88rem;
  line-height: 1.55;
}

.nd-content h2 {
  scroll-margin-top: 104px;
}

.nd-content {
  width: 100%;
  color: #2b2825;
  font-size: 1.05rem;
}

.nd-content > *:first-child {
  margin-top: 0;
}

.nd-content p,
.nd-content li {
  color: #514c45;
}

.nd-content p {
  margin: 24px 0 0;
}

.nd-content h2 {
  margin: 54px 0 0;
  color: var(--nd-ink);
  font-size: clamp(1.75rem, 3vw, 2.6rem);
  line-height: 1.08;
  letter-spacing: -0.045em;
}

html[data-language="CN"] .nd-content h2 {
  font-size: clamp(1.55rem, 2.45vw, 2.2rem);
  line-height: 1.18;
  letter-spacing: -0.025em;
}

.nd-content ul,
.nd-content ol {
  margin: 22px 0 0;
  padding-left: 24px;
}

.nd-content strong {
  color: var(--nd-ink);
  font-weight: 800;
}

.nd-content li + li {
  margin-top: 10px;
}

.nd-table-wrap {
  width: 100%;
  max-width: 100%;
  margin: 28px 0 0;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.nd-table {
  width: max-content;
  min-width: 100%;
  border-collapse: collapse;
  color: #514c45;
  font-size: 0.98rem;
  line-height: 1.45;
}

.nd-table th,
.nd-table td {
  padding: 12px 16px;
  border-bottom: 1px solid rgba(24, 23, 21, 0.16);
  text-align: left;
  vertical-align: top;
}

.nd-table th {
  color: var(--nd-ink);
  font-weight: 800;
  white-space: nowrap;
}

.nd-content .rich-math-block {
  max-width: 100%;
  margin: 32px 0 0;
  overflow-x: auto;
  overflow-y: hidden;
  color: var(--nd-ink);
  -webkit-overflow-scrolling: touch;
}

.nd-content .rich-math-block + .rich-math-block {
  margin-top: 4px;
}

.nd-content mjx-container {
  max-width: 100%;
  color: var(--nd-ink);
  overflow-x: auto;
  overflow-y: hidden;
}

.nd-content mjx-container[display="true"] {
  margin: 0;
  padding: 2px 0;
  text-align: center;
}

@media (max-width: 768px) {
  .nd-content {
    min-width: 0;
  }

  .nd-table-wrap {
    min-width: 0;
    overflow-x: auto;
    overflow-y: hidden;
  }

  .nd-table {
    width: 100%;
    min-width: 0;
    font-size: 0.88rem;
    line-height: 1.35;
  }

  .nd-table th,
  .nd-table td {
    padding: 10px 5px;
    border-bottom-color: rgba(24, 23, 21, 0.28);
  }

  .nd-table th {
    white-space: normal;
  }

  .nd-content .rich-math-block {
    margin-top: 26px;
  }

  .nd-content .rich-math-block + .rich-math-block {
    margin-top: 4px;
  }
}

.nd-content blockquote {
  margin: 42px 0;
  padding: 28px;
  border-left: 4px solid var(--nd-red);
  border-radius: 8px;
  background: #efedde;
  color: var(--nd-ink);
  font-size: 1.3rem;
  font-weight: 800;
  line-height: 1.45;
}

.nd-content a {
  color: var(--nd-red);
  font-weight: 800;
  text-decoration: none;
  border-bottom: 1px solid rgba(190, 0, 0, 0.34);
  transition: color 0.22s ease, border-color 0.22s ease;
}

.nd-content a:hover {
  color: var(--nd-ink);
  border-color: rgba(24, 23, 21, 0.42);
}

.nd-copyright-notice {
  margin: 42px 0 0;
  padding: 17px 20px;
  border: 1px solid rgba(24, 23, 21, 0.06);
  border-radius: 8px;
  background: #f6f5f1;
  color: #7a746d;
  font-size: 0.92rem;
  line-height: 1.62;
}

.nd-copyright-notice p {
  margin: 0;
  color: inherit;
}

.nd-copy-link-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-left: 8px;
  padding: 4px 10px 3px;
  border: 1px solid rgba(24, 23, 21, 0.08);
  border-radius: 999px;
  background: linear-gradient(135deg, #eeeeeb, #e4e1dc);
  color: #5f5a53;
  font: inherit;
  font-size: 0.72rem;
  font-weight: 500;
  line-height: 1.1;
  white-space: nowrap;
  cursor: pointer;
  transform: none;
  transition: background 0.22s ease, border-color 0.22s ease, color 0.22s ease;
}

.nd-copy-link-button:hover,
.nd-copy-link-button:focus-visible {
  border-color: #141414;
  background: linear-gradient(135deg, #2a2a2a, #050505);
  color: #f2f0ec;
  transform: none;
}

.nd-copy-link-button:focus-visible {
  outline: 2px solid rgba(24, 23, 21, 0.18);
  outline-offset: 2px;
}

.nd-copy-link-feedback {
  position: fixed;
  z-index: 1200;
  min-width: 150px;
  max-width: min(300px, calc(100vw - 32px));
  padding: 12px 16px;
  border: 1px solid rgba(24, 23, 21, 0.08);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.96);
  box-shadow: 0 18px 42px rgba(24, 23, 21, 0.16);
  color: #4c4740;
  font-size: 0.82rem;
  font-weight: 500;
  line-height: 1.35;
  pointer-events: none;
  opacity: 0;
  transform: translateY(6px);
  transition: opacity 0.18s ease, transform 0.18s ease;
}

.nd-copy-link-feedback.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.nd-copy-link-feedback::before {
  content: "";
  display: inline-block;
  width: 7px;
  height: 7px;
  margin-right: 8px;
  border-radius: 999px;
  background: #16a45a;
  vertical-align: 1px;
}

.nd-link-block {
  font-weight: 700;
}

.nd-video-block {
  position: relative;
  overflow: hidden;
  margin: 42px 0 0;
  border-radius: 8px;
  background: #171717;
  aspect-ratio: 16 / 9;
}

.nd-video-block iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

.nd-figure {
  margin: 42px 0;
}

.nd-figure__image {
  width: fit-content;
  max-width: 100%;
  height: auto;
  margin: 0 auto;
  overflow: visible;
  background: transparent;
}

.nd-figure--wide .nd-figure__image {
  width: fit-content;
  max-width: 100%;
  height: auto;
}

.nd-figure figcaption {
  margin-top: 10px;
  color: #7a7167;
  font-size: 0.88rem;
  line-height: 1.5;
  text-align: center;
}

.nd-post-nav {
  display: grid;
  gap: 10px;
  justify-items: start;
  padding: 14px 0 76px;
}

.nd-post-link {
  position: relative;
  display: flex;
  align-items: baseline;
  gap: 10px;
  width: fit-content;
  max-width: 100%;
  padding: 2px 0;
  color: var(--nd-ink);
  text-decoration: none;
}

.nd-post-link:nth-child(2) {
  padding-left: 0;
  text-align: left;
}

.nd-post-link::before {
  content: none;
}

.nd-post-link:nth-child(2)::before {
  content: none;
}

.nd-post-link::after {
  content: none;
}

.nd-post-link span {
  position: relative;
  z-index: 1;
  flex: 0 0 auto;
  color: var(--nd-red);
  font-size: clamp(1.02rem, 1.1vw, 1.08rem);
  font-weight: 500;
  line-height: 1.16;
}

.nd-post-link strong {
  position: relative;
  z-index: 1;
  display: block;
  color: var(--nd-ink);
  max-width: 820px;
  font-size: clamp(1.02rem, 1.1vw, 1.08rem);
  font-weight: 500;
  line-height: 1.16;
  letter-spacing: -0.025em;
  transition: color 0.24s ease;
}

.nd-post-link strong::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -7px;
  width: 100%;
  height: 2px;
  border-radius: 999px;
  background: var(--nd-red);
  opacity: 0;
  transform: scaleX(0);
  transform-origin: left center;
  transition: opacity 0.24s ease, transform 0.28s ease;
}

.nd-post-link:nth-child(2) strong {
  justify-self: auto;
}

.nd-post-link strong:hover {
  color: rgba(21, 21, 21, 0.68);
}

.nd-post-link strong:hover::after {
  opacity: 1;
  transform: scaleX(1);
}

.nd-related {
  padding-bottom: 60px;
}

.nd-related-head {
  max-width: 680px;
  margin-bottom: 30px;
}

.nd-related-head .nd-kicker {
  display: block;
  width: auto;
  min-height: 0;
  margin: 0 0 14px;
  padding: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
  color: var(--nd-sidebar-accent);
  font-size: 16px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: normal;
  text-transform: uppercase;
}

.nd-related-head h2 {
  margin: 0;
  color: var(--nd-ink);
  font-size: clamp(1.75rem, 3vw, 2.6rem);
  line-height: 1.08;
  letter-spacing: -0.045em;
}

html[data-language="CN"] .nd-related-head h2 {
  font-size: clamp(1.55rem, 2.45vw, 2.2rem);
  line-height: 1.18;
  letter-spacing: -0.025em;
}

.nd-related-grid {
  display: grid;
  align-items: start;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 54px 22px;
}

.nd-related-card {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  border-radius: 8px;
  background: transparent;
  color: var(--nd-ink);
  text-decoration: none;
}

.nd-related-card::after {
  content: "";
  display: block;
  height: 2px;
  margin-top: 14px;
  border-radius: 999px;
  background: var(--nd-red);
  opacity: 0;
  transform: scaleX(0);
  transform-origin: left center;
  transition: opacity 0.24s ease, transform 0.28s ease;
}

.nd-related-card:hover::after {
  opacity: 1;
  transform: scaleX(1);
}

.nd-related-card__image {
  width: 100%;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  border-radius: 8px;
  background: #f5f3ef;
}

.nd-related-card__image img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s linear;
  transform-origin: center center;
}

.nd-related-card:hover .nd-related-card__image img {
  transform: scale(1.02);
}

.nd-related-card__body {
  display: flex;
  flex-direction: column;
  padding: 18px 0 0;
}

.nd-related-card h3 {
  display: -webkit-box;
  margin: 0;
  overflow: hidden;
  color: var(--nd-ink);
  font-size: 1.15rem;
  line-height: 1.24;
  letter-spacing: -0.025em;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
}

.nd-related-card p {
  display: -webkit-box;
  margin: 12px 0 0;
  overflow: hidden;
  color: var(--nd-copy);
  font-size: 0.92rem;
  line-height: 1.5;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 3;
}

.nd-related-card__meta {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: 12px;
  margin-top: 14px;
  color: var(--nd-copy);
  font-size: 0.74rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.nd-related-card__meta span {
  color: var(--nd-red);
}

@media (max-width: 1024px) {
.nd-content h2 {
    scroll-margin-top: 84px;
  }

.nd-layout {
    grid-template-columns: 230px minmax(0, 1fr);
    gap: 30px;
  }

  .nd-sidebar {
    top: 74px;
  }

  .nd-sidebar-panel {
    padding: 18px;
  }

  .nd-related {
    padding-bottom: 30px;
  }
}

@media (max-width: 640px) {
.nd-related-head .nd-kicker {
    font-size: 14px;
  }

.nd-content h2 {
    scroll-margin-top: 76px;
  }

.nd-container {
    width: min(100% - 30px, var(--nd-container));
  }

  .nd-cover {
    margin-top: 30px;
  }

  .nd-layout {
    grid-template-columns: 1fr;
    gap: 30px;
    padding: 0 0 36px;
  }

  .nd-post-nav,
  .nd-related-grid {
    grid-template-columns: 1fr;
  }

  .nd-sidebar {
    position: static;
  }

  .nd-sidebar-panel {
    box-shadow: none;
  }

  .nd-post-link {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr);
    align-items: baseline;
    gap: 9px;
    padding: 2px 0;
    text-align: left;
  }

  .nd-post-link:nth-child(2) {
    align-items: flex-start;
    padding-left: 0;
    text-align: left;
  }

  .nd-post-link:nth-child(2) strong {
    justify-self: auto;
  }

  .nd-content {
    font-size: 1rem;
  }

  .nd-content blockquote {
    padding: 22px;
    font-size: 1.12rem;
  }

  .nd-related-card__meta {
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
  }
}

@media (max-width: 480px) {
.nd-container {
    width: min(100% - 24px, var(--nd-container));
  }

  .nd-cover__image {
    height: 230px;
  }

  .nd-figure__image,
  .nd-figure--wide .nd-figure__image {
    height: auto;
  }
}