.page-news {
  --news-rail-w: 264px;
  --news-flow-gap: clamp(1.5rem, 3.2vw, 3rem);
  overflow-x: hidden;
}

.page-news img {
  max-width: 100%;
}

/* ---------- 面包屑区 ---------- */
.page-news .breadcrumb {
  padding-top: clamp(1rem, 2.5vw, 1.75rem);
}

/* ---------- 专栏首屏 ---------- */
.page-news .news-masthead {
  position: relative;
  isolation: isolate;
  padding: clamp(2rem, 6vw, 4.5rem) 0 clamp(1.75rem, 4vw, 3rem);
  border-bottom: 1px solid var(--line-gold-soft);
  overflow: hidden;
}

.page-news .news-masthead__bg {
  position: absolute;
  inset: 0;
  z-index: -1;
  opacity: 0.2;
  -webkit-mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.95), rgba(0, 0, 0, 0.08));
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.95), rgba(0, 0, 0, 0.08));
}

.page-news .news-masthead__bg img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
  filter: grayscale(0.3) contrast(1.06);
}

.page-news .news-masthead__type {
  max-width: 62ch;
}

.page-news .news-masthead__title {
  font-family: var(--font-serif);
  font-weight: 900;
  font-size: clamp(3rem, 13vw, 7rem);
  line-height: 0.88;
  letter-spacing: -0.035em;
  color: var(--c-sand);
  margin: 0.4rem 0 0;
  word-break: keep-all;
}

.page-news .news-masthead__lead {
  margin: clamp(1rem, 2.5vw, 1.6rem) 0 0;
  font-size: clamp(0.95rem, 2.2vw, 1.0625rem);
  line-height: 1.85;
  color: var(--text-soft);
  max-width: 54ch;
}

.page-news .news-masthead__figures {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(128px, 1fr));
  gap: 1rem 1.5rem;
  margin: clamp(1.75rem, 4vw, 2.75rem) 0 0;
  padding-top: clamp(1rem, 2.5vw, 1.5rem);
  border-top: 1px solid var(--line-gold-soft);
}

.page-news .news-masthead__figures > div {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}

.page-news .news-masthead__figures dt {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  color: var(--text-mute);
}

.page-news .news-masthead__figures dd {
  margin: 0;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: clamp(1.25rem, 3.2vw, 1.75rem);
  color: var(--c-gold-bright);
  letter-spacing: -0.01em;
}

/* ---------- 横向头条带 ---------- */
.page-news .news-ticker {
  border-bottom: 1px solid var(--line-gold-soft);
  background: linear-gradient(90deg, rgba(16, 27, 45, 0.9), rgba(11, 14, 19, 0.5));
}

.page-news .news-ticker__track {
  display: flex;
  overflow-x: auto;
  scroll-snap-type: x proximity;
  -webkit-overflow-scrolling: touch;
}

.page-news .news-ticker__item {
  flex: 0 0 auto;
  scroll-snap-align: start;
  display: flex;
  align-items: baseline;
  gap: 0.7rem;
  padding: 0.95rem clamp(1rem, 3vw, 1.6rem);
  border-right: 1px solid var(--line-gold-soft);
  text-decoration: none;
  color: var(--c-sand);
  font-size: 0.875rem;
  line-height: 1.5;
  transition: background 0.3s ease, color 0.3s ease;
}

.page-news .news-ticker__item:hover,
.page-news .news-ticker__item:focus-visible {
  background: rgba(196, 154, 88, 0.1);
  color: var(--c-gold-bright);
}

.page-news .news-ticker__when {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.06em;
  color: var(--c-gold);
  white-space: nowrap;
}

.page-news .news-ticker__what {
  white-space: nowrap;
}

/* ---------- 主体两栏 ---------- */
.page-news .news-body {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--news-flow-gap);
  padding-top: clamp(2rem, 5vw, 3.25rem);
  padding-bottom: clamp(2.5rem, 6vw, 4rem);
}

@media (min-width: 980px) {
  .page-news .news-body {
    grid-template-columns: var(--news-rail-w) minmax(0, 1fr);
    gap: clamp(2rem, 4.5vw, 4rem);
  }
}

.page-news .news-rail {
  min-width: 0;
}

@media (min-width: 980px) {
  .page-news .news-rail__sticky {
    position: sticky;
    top: calc(var(--header-h) + 1.75rem);
  }
}

.page-news .news-rail__label {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--c-gold);
  margin: 0 0 0.75rem;
}

.page-news .news-rail__nav {
  display: flex;
  flex-direction: column;
}

.page-news .news-rail__nav a {
  display: block;
  padding: 0.55rem 0 0.55rem 1.05rem;
  font-size: 0.9375rem;
  line-height: 1.5;
  color: var(--text-mute);
  text-decoration: none;
  border-left: 1px solid var(--line-gold-soft);
  transition: color 0.25s ease, border-color 0.25s ease, padding-left 0.25s ease;
}

.page-news .news-rail__nav a:hover {
  color: var(--c-sand);
  border-left-color: var(--line-gold);
}

.page-news .news-rail__nav a.is-active {
  color: var(--c-gold-bright);
  border-left-color: var(--c-gold);
  padding-left: 1.4rem;
  font-weight: 600;
}

.page-news .news-rail__search {
  margin: 1.5rem 0;
  padding-top: 1.25rem;
  border-top: 1px solid var(--line-gold-soft);
}

.page-news .site-search__input {
  width: 100%;
  box-sizing: border-box;
  padding: 0.7rem 0.9rem;
  background: var(--surface-2);
  border: 1px solid var(--line-gold);
  border-radius: var(--radius);
  color: var(--c-sand);
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  line-height: 1.4;
}

.page-news .site-search__input::placeholder {
  color: var(--text-mute);
}

.page-news .site-search__input:focus-visible {
  outline: 2px solid var(--c-gold);
  outline-offset: 1px;
}

.page-news .news-rail__hint {
  margin: 0.6rem 0 0;
  font-size: 0.75rem;
  line-height: 1.7;
  color: var(--text-mute);
}

.page-news .news-rail__tags {
  padding-top: 1.25rem;
  border-top: 1px solid var(--line-gold-soft);
}

.page-news .news-tags {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.page-news .news-rail__link {
  display: inline-block;
  margin-top: 1.5rem;
  font-size: 0.875rem;
  color: var(--c-jade-soft);
  text-decoration: none;
  border-bottom: 1px solid var(--line-jade);
  padding-bottom: 0.15rem;
}

.page-news .news-rail__link:hover {
  color: var(--c-gold-bright);
  border-bottom-color: var(--c-gold);
}

/* ---------- 章节通用 ---------- */
.page-news .news-flow {
  min-width: 0;
}

.page-news .news-section {
  margin-bottom: clamp(2.75rem, 7vw, 5rem);
}

.page-news .news-section:last-child {
  margin-bottom: 0;
}

.page-news .news-section .section-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.5rem 0.9rem;
  padding-bottom: 0.8rem;
  margin-bottom: clamp(1.25rem, 3vw, 2rem);
  border-bottom: 1px solid var(--line-gold);
}

.page-news .section-head__index {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--c-gold);
  letter-spacing: 0.08em;
}

.page-news .section-head__title {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: clamp(1.3rem, 3.6vw, 1.875rem);
  line-height: 1.25;
  letter-spacing: -0.02em;
  color: var(--c-sand);
  margin: 0;
}

.page-news .section-head__note {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.04em;
  color: var(--text-mute);
}

.page-news .section-foot-link {
  margin: clamp(1.25rem, 3vw, 1.75rem) 0 0;
}

.page-news .section-foot-link a {
  font-size: 0.9375rem;
  color: var(--c-jade-soft);
  text-decoration: none;
  border-bottom: 1px solid var(--line-jade);
  padding-bottom: 0.14rem;
}

.page-news .section-foot-link a:hover {
  color: var(--c-gold-bright);
  border-bottom-color: var(--c-gold);
}

/* ---------- 最新动态列表 ---------- */
.page-news .news-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.page-news .news-card {
  padding: 1rem 1.15rem 1.15rem 1.35rem;
  border-left: 2px solid var(--line-gold-soft);
  background: linear-gradient(90deg, rgba(22, 36, 59, 0.6), rgba(11, 14, 19, 0));
  transition: border-color 0.3s ease, background 0.3s ease;
}

.page-news .news-card:hover {
  border-left-color: var(--c-gold);
  background: linear-gradient(90deg, rgba(196, 154, 88, 0.12), rgba(11, 14, 19, 0));
}

.page-news .news-card__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem 0.75rem;
  margin-bottom: 0.55rem;
}

.page-news .news-card__when {
  font-size: 0.6875rem;
  letter-spacing: 0.04em;
  color: var(--text-mute);
}

.page-news .news-card__title {
  margin: 0 0 0.4rem;
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: clamp(1rem, 2.3vw, 1.125rem);
  line-height: 1.55;
  color: var(--c-sand);
}

.page-news .news-card__excerpt {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.78;
  color: var(--text-soft);
}

/* ---------- 版本动态专题 ---------- */
.page-news .release-feature {
  display: grid;
  gap: 1.25rem;
  margin-bottom: clamp(1.25rem, 3vw, 1.75rem);
}

@media (min-width: 760px) {
  .page-news .release-feature {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
    align-items: stretch;
  }
}

.page-news .release-feature__media,
.page-news .case-media,
.page-news .tips-media {
  margin: 0;
  border: 1px solid var(--line-gold-soft);
  background: var(--surface-2);
  overflow: hidden;
}

.page-news .release-feature__media img,
.page-news .case-media img,
.page-news .tips-media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-news .media-frame__caption {
  padding: 0.6rem 0.75rem;
  font-size: 0.75rem;
  line-height: 1.6;
  color: var(--text-mute);
  border-top: 1px solid var(--line-gold-soft);
}

.page-news .release-feature__text {
  padding: clamp(1.15rem, 2.6vw, 1.75rem);
  background: linear-gradient(150deg, rgba(58, 47, 31, 0.5), rgba(16, 27, 45, 0.9));
  border: 1px solid var(--line-gold);
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.75rem;
}

.page-news .release-feature__text h3 {
  margin: 0;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: clamp(1.15rem, 3vw, 1.5rem);
  line-height: 1.4;
  color: var(--c-sand);
}

.page-news .release-feature__text p {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.85;
  color: var(--text-soft);
}

.page-news .release-feature__text .btn {
  margin-top: auto;
}

.page-news .release-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0.85rem;
}

@media (min-width: 700px) {
  .page-news .release-list {
    grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  }
}

.page-news .release-list li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 0.85rem;
  padding: 1.1rem 1.15rem;
  background: var(--surface-1);
  border: 1px solid var(--line-gold-soft);
  border-top: 2px solid var(--c-gold);
}

.page-news .release-list .index-num {
  display: block;
  line-height: 1.4;
}

.page-news .release-list h3 {
  margin: 0 0 0.4rem;
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 1rem;
  line-height: 1.5;
  color: var(--c-sand);
}

.page-news .release-list p {
  margin: 0;
  font-size: 0.875rem;
  line-height: 1.8;
  color: var(--text-soft);
}

/* ---------- 行业案例 ---------- */
.page-news .case-cloud {
  list-style: none;
  margin: 0 0 1.25rem;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.page-news .case-media {
  margin: 0 0 clamp(1.25rem, 3vw, 1.75rem);
}

.page-news .case-media img {
  max-height: 320px;
}

.page-news .case-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1rem;
}

@media (min-width: 620px) {
  .page-news .case-grid {
    grid-template-columns: repeat(auto-fit, minmax(258px, 1fr));
  }
}

.page-news .case-card {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  padding: 1.15rem 1.2rem 1rem;
  background: var(--surface-2);
  border: 1px solid var(--line-gold-soft);
  border-top: 2px solid var(--c-jade);
  transition: border-color 0.3s ease, background 0.3s ease;
}

.page-news .case-card:hover {
  border-top-color: var(--c-gold-bright);
  background: rgba(22, 36, 59, 0.95);
}

.page-news .case-card__head {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.55rem;
}

.page-news .case-card__head h3 {
  margin: 0;
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 1rem;
  line-height: 1.55;
  color: var(--c-sand);
}

.page-news .case-card p {
  margin: 0;
  font-size: 0.875rem;
  line-height: 1.8;
  color: var(--text-soft);
}

.page-news .case-card__facts {
  margin: auto 0 0;
  padding-top: 0.75rem;
  border-top: 1px dashed var(--line-gold-soft);
  display: grid;
  gap: 0.3rem;
  font-size: 0.8125rem;
}

.page-news .case-card__facts > div {
  display: flex;
  gap: 0.6rem;
}

.page-news .case-card__facts dt {
  flex: 0 0 3em;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--c-gold);
}

.page-news .case-card__facts dd {
  margin: 0;
  color: var(--text-mute);
}

/* ---------- 使用技巧 ---------- */
.page-news .tips-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(1.25rem, 3vw, 2rem);
}

@media (min-width: 880px) {
  .page-news .tips-layout {
    grid-template-columns: minmax(0, 0.82fr) minmax(0, 1.18fr);
    align-items: start;
  }
}

.page-news .tips-media {
  margin: 0;
}

.page-news .tips-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.85rem;
  counter-reset: tip;
}

.page-news .tips-list li {
  counter-increment: tip;
  position: relative;
  padding: 0.9rem 1rem 0.95rem 3.35rem;
  background: linear-gradient(90deg, rgba(16, 27, 45, 0.85), rgba(11, 14, 19, 0));
  border-left: 1px solid var(--line-gold-soft);
}

.page-news .tips-list li::before {
  content: counter(tip, decimal-leading-zero);
  position: absolute;
  left: 0.85rem;
  top: 0.9rem;
  width: 1.9rem;
  height: 1.9rem;
  display: grid;
  place-items: center;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--c-gold);
  border: 1px solid var(--line-gold);
}

.page-news .tips-list h3 {
  margin: 0 0 0.3rem;
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 0.9375rem;
  line-height: 1.55;
  color: var(--c-sand);
}

.page-news .tips-list p {
  margin: 0;
  font-size: 0.875rem;
  line-height: 1.8;
  color: var(--text-soft);
}

/* ---------- 专题系列 ---------- */
.page-news .series-board {
  display: grid;
  gap: 0.7rem;
}

.page-news .series-item {
  background: var(--surface-1);
  border: 1px solid var(--line-gold-soft);
  transition: border-color 0.3s ease;
}

.page-news .series-item[open] {
  border-color: var(--line-gold);
}

.page-news .series-item > summary {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto auto;
  align-items: baseline;
  gap: 0.85rem;
  padding: 1rem 1.15rem;
  cursor: pointer;
  list-style: none;
}

.page-news .series-item > summary::-webkit-details-marker {
  display: none;
}

.page-news .series-item__no {
  font-size: 0.6875rem;
  letter-spacing: 0.08em;
  color: var(--c-gold);
}

.page-news .series-item__name {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: clamp(1rem, 2.4vw, 1.1875rem);
  line-height: 1.4;
  color: var(--c-sand);
}

.page-news .series-item__count {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-mute);
  white-space: nowrap;
}

.page-news .series-item__toggle {
  position: relative;
  align-self: center;
  width: 0.85rem;
  height: 0.85rem;
}

.page-news .series-item__toggle::before,
.page-news .series-item__toggle::after {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  width: 100%;
  height: 1px;
  background: var(--c-gold);
  transition: transform 0.3s ease;
}

.page-news .series-item__toggle::after {
  transform: rotate(90deg);
}

.page-news .series-item[open] .series-item__toggle::after {
  transform: rotate(0deg);
}

.page-news .series-item__list {
  list-style: none;
  margin: 0;
  padding: 0.35rem 1.15rem 1.1rem;
  display: grid;
  gap: 0.1rem;
  border-top: 1px solid var(--line-gold-soft);
}

.page-news .series-item__list li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 0.75rem;
  padding: 0.6rem 0;
  border-bottom: 1px dashed rgba(196, 154, 88, 0.12);
  font-size: 0.9rem;
  line-height: 1.7;
  color: var(--text-soft);
}

.page-news .series-item__list li:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-news .series-item__idx {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--c-gold);
  line-height: 1.9;
}

/* ---------- 页尾延伸 ---------- */
.page-news .news-cta {
  position: relative;
  overflow: hidden;
  margin-bottom: clamp(2.5rem, 7vw, 5rem);
  padding: clamp(1.75rem, 5vw, 3.25rem);
  background: linear-gradient(140deg, rgba(58, 47, 31, 0.8), rgba(16, 27, 45, 0.94) 62%);
  border: 1px solid var(--line-gold);
}

.page-news .news-cta::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 2px;
  background: var(--metal-line);
}

.page-news .news-cta__title {
  margin: 0 0 0.85rem;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: clamp(1.35rem, 4vw, 2.125rem);
  line-height: 1.3;
  letter-spacing: -0.02em;
  color: var(--c-sand);
}

.page-news .news-cta__text {
  margin: 0 0 1.5rem;
  max-width: 58ch;
  font-size: 0.9375rem;
  line-height: 1.85;
  color: var(--text-soft);
}

.page-news .news-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

/* ---------- 窄屏适配 ---------- */
@media (max-width: 979px) {
  .page-news .news-rail {
    padding-bottom: 1.25rem;
    border-bottom: 1px solid var(--line-gold-soft);
  }

  .page-news .news-rail__nav {
    flex-direction: row;
    gap: 0.25rem;
    overflow-x: auto;
    padding-bottom: 0.2rem;
    -webkit-overflow-scrolling: touch;
  }

  .page-news .news-rail__nav a {
    border-left: 0;
    border-bottom: 2px solid transparent;
    padding: 0.5rem 0.35rem;
    white-space: nowrap;
    font-size: 0.875rem;
  }

  .page-news .news-rail__nav a.is-active {
    padding-left: 0.35rem;
    border-bottom-color: var(--c-gold);
  }

  .page-news .news-rail__search {
    margin-top: 1.1rem;
  }
}

@media (max-width: 520px) {
  .page-news .news-masthead__figures {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-news .news-card {
    padding: 0.9rem 0.9rem 1rem 1.05rem;
  }

  .page-news .section-head__note {
    margin-left: 0;
  }

  .page-news .series-item > summary {
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 0.35rem 0.6rem;
  }

  .page-news .series-item__no {
    grid-column: 1 / -1;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .news-card,
  .page-news .case-card,
  .page-news .news-ticker__item,
  .page-news .series-item,
  .page-news .series-item__toggle::before,
  .page-news .series-item__toggle::after {
    transition: none;
  }
}