.page-news {
  --page-gutter: 1.25rem;
  --page-band: min(1200px, calc(100% - 2.5rem));
  --card-line: rgba(166, 124, 0, 0.35);
  --body-deep: #3A3A3A;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  overflow-x: hidden;
}

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

.page-news__band {
  width: var(--page-band);
  margin: 0 auto;
}

.page-news__section-head {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin: 3rem 0 1.5rem;
}

.page-news__section-num {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  line-height: 1;
  color: var(--gold);
  margin: 0;
}

.page-news__section-head .section-title {
  margin: 0;
}

.page-news__section-rule {
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, var(--border-gold), transparent);
}

.page-news__section-link {
  color: var(--deep-purple);
  font-weight: 600;
  text-decoration: none;
  border-bottom: 1px solid var(--border-gold);
}

.page-news__section-sub {
  font-size: 0.8rem;
  color: var(--deep-purple-light);
  margin-left: auto;
}

/* ===== Hero ===== */
.page-news__hero {
  position: relative;
  background:
    radial-gradient(circle at 88% 18%, rgba(212, 175, 55, 0.28), transparent 32%),
    linear-gradient(135deg, var(--deep-purple) 0%, var(--deep-purple-light) 68%, var(--deep-purple) 100%);
  color: var(--white);
  padding: 3.5rem var(--page-gutter) 3rem;
  overflow: hidden;
}

.page-news__hero::before {
  content: "";
  position: absolute;
  top: -70px;
  right: -70px;
  width: 200px;
  height: 200px;
  background: linear-gradient(135deg, rgba(212, 175, 55, 0.32), transparent 62%);
  transform: rotate(18deg);
  pointer-events: none;
}

.page-news__hero::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 0;
  width: 42%;
  height: 6px;
  background: var(--orange);
  pointer-events: none;
}

.page-news .breadcrumb {
  margin-bottom: 2rem;
  color: rgba(255, 255, 255, 0.72);
  font-size: 0.85rem;
}

.page-news .breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  list-style: none;
  padding: 0;
  margin: 0;
}

.page-news .breadcrumb li + li::before {
  content: "/";
  margin-right: 0.5rem;
  color: rgba(255, 255, 255, 0.4);
}

.page-news .breadcrumb a {
  color: var(--gold-light);
  text-decoration: none;
}

.page-news .breadcrumb a:hover {
  text-decoration: underline;
}

.page-news__hero-kicker {
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gold-light);
  margin: 0 0 0.6rem;
}

.page-news__hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 8vw, 4.5rem);
  line-height: 1.05;
  margin: 0 0 1rem;
}

.page-news__hero-lead {
  font-size: 1.05rem;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.82);
  max-width: 32em;
  margin: 0;
}

.page-news__hero-panel {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin-top: 2rem;
}

.page-news__hero-panel span {
  display: inline-block;
  padding: 0.5rem 0.9rem;
  border: 1px solid rgba(212, 175, 55, 0.5);
  background: rgba(212, 175, 55, 0.08);
  color: var(--gold-light);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.03em;
}

/* ===== 焦点新闻 ===== */
.page-news__focus {
  padding: 1rem 0 2rem;
}

.page-news__feature-grid {
  display: grid;
  gap: 1.25rem;
}

.page-news__feature-card {
  display: flex;
  flex-direction: column;
  background: linear-gradient(135deg, var(--deep-purple) 0%, var(--deep-purple-light) 58%, rgba(255, 107, 53, 0.28) 135%);
  border: 1px solid rgba(212, 175, 55, 0.45);
  color: var(--white);
  overflow: hidden;
}

.page-news__feature-media {
  position: relative;
}

.page-news__feature-img {
  display: block;
  width: 100%;
  height: auto;
}

.page-news__feature-badge {
  position: absolute;
  top: 1rem;
  left: 1rem;
  background: var(--orange);
  color: var(--white);
}

.page-news__feature-body {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  padding: 1.5rem 1.25rem;
}

.page-news__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 0.8rem;
  font-size: 0.82rem;
  letter-spacing: 0.02em;
  color: var(--gold-light);
  margin-bottom: 0.2rem;
}

.page-news__feature-title {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 4vw, 2.5rem);
  line-height: 1.15;
  margin: 0;
}

.page-news__feature-summary {
  font-size: 1rem;
  line-height: 1.7;
  opacity: 0.9;
  margin: 0;
}

.page-news__details {
  border-top: 1px solid rgba(212, 175, 55, 0.3);
  margin-top: 0.4rem;
  padding-top: 0.85rem;
}

.page-news__details summary {
  cursor: pointer;
  list-style: none;
  font-weight: 600;
  font-size: 0.92rem;
  color: var(--gold-light);
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

.page-news__details summary::-webkit-details-marker {
  display: none;
}

.page-news__details summary::after {
  content: "+";
  font-size: 1.2rem;
  line-height: 1;
  transition: transform 0.2s ease;
}

.page-news__details[open] summary::after {
  transform: rotate(45deg);
}

.page-news__details p {
  margin: 1rem 0 0.5rem;
  line-height: 1.7;
  font-size: 0.95rem;
  opacity: 0.92;
}

.page-news__details a {
  color: var(--gold-light);
}

.page-news__side {
  display: grid;
  grid-template-rows: repeat(2, minmax(0, 1fr));
  gap: 1.25rem;
}

.page-news__side-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  background: var(--white);
  border: 1px solid var(--card-line);
  padding: 1.5rem;
}

.page-news__side-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: var(--gold);
}

.page-news__side-tag {
  align-self: flex-start;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--deep-purple);
  background: rgba(212, 175, 55, 0.1);
  border: 1px solid rgba(166, 124, 0, 0.3);
  padding: 0.3rem 0.6rem;
}

.page-news__side-card h3 {
  font-family: var(--font-display);
  font-size: 1.25rem;
  line-height: 1.3;
  margin: 0;
}

.page-news__side-card h3 a {
  color: var(--ink);
  text-decoration: none;
}

.page-news__side-card h3 a:hover {
  color: var(--deep-purple);
  text-decoration: underline;
}

.page-news__side-card p {
  font-size: 0.9rem;
  line-height: 1.6;
  color: var(--body-deep);
  margin: 0;
}

.page-news__side-time {
  font-size: 0.78rem;
  color: var(--deep-purple-light);
  margin-top: auto;
}

/* ===== 更新日志 ===== */
.page-news__changelog {
  padding: 1rem 0 3.5rem;
}

.page-news__filter-zone {
  position: relative;
}

.page-news__filter-input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.page-news__filter-tab {
  display: inline-block;
  margin: 0 0.5rem 1rem 0;
  padding: 0.5rem 1rem;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--deep-purple);
  border: 1px solid var(--border-gold);
  background: transparent;
  cursor: pointer;
  transition: background 0.2s ease, color 0.2s ease;
}

.page-news__filter-input:checked + .page-news__filter-tab {
  background: var(--deep-purple);
  color: var(--white);
  border-color: var(--deep-purple);
}

.page-news__timeline {
  list-style: none;
  margin: 0.5rem 0 0;
  padding: 0;
  display: grid;
  gap: 1.25rem;
}

.page-news__log-item {
  position: relative;
  padding-left: 1.4rem;
  display: flex;
}

.page-news__log-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 1.6rem;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--gold);
  border: 2px solid var(--paper);
  box-shadow: 0 0 0 2px var(--border-gold);
  z-index: 2;
}

.page-news__log-item:not(:last-child)::after {
  content: "";
  position: absolute;
  left: 4px;
  top: 2.5rem;
  bottom: -2.15rem;
  width: 1px;
  background: rgba(166, 124, 0, 0.35);
}

.page-news__log-card {
  display: grid;
  grid-template-columns: 72px minmax(0, 1fr);
  gap: 1rem;
  padding: 0.9rem;
  background: var(--white);
  border: 1px solid var(--card-line);
}

.page-news__log-version {
  display: flex;
  align-items: center;
}

.page-news__log-version img {
  width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid rgba(166, 124, 0, 0.2);
}

.page-news__log-body {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.page-news__log-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.5rem;
}

.page-news__log-head h3 {
  font-family: var(--font-display);
  font-size: 1.25rem;
  line-height: 1.3;
  margin: 0;
  color: var(--ink);
}

.page-news__log-time {
  font-size: 0.78rem;
  color: var(--deep-purple-light);
}

.page-news__log-body p {
  font-size: 0.92rem;
  line-height: 1.65;
  margin: 0;
  color: var(--body-deep);
}

.page-news__log-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-top: 0.35rem;
}

.page-news__log-tags span {
  font-size: 0.75rem;
  color: var(--deep-purple);
  background: rgba(212, 175, 55, 0.12);
  border: 1px solid rgba(166, 124, 0, 0.25);
  padding: 0.25rem 0.6rem;
}

/* 纯CSS筛选 */
.page-news__filter-input[id="filter-all"]:checked ~ .page-news__timeline .page-news__log-item {
  display: flex;
}

.page-news__filter-input:checked ~ .page-news__timeline .page-news__log-item {
  display: none;
}

.page-news__filter-input[id="filter-release"]:checked ~ .page-news__timeline .page-news__log-item[data-category~="release"] {
  display: flex;
}

.page-news__filter-input[id="filter-upgrade"]:checked ~ .page-news__timeline .page-news__log-item[data-category~="upgrade"] {
  display: flex;
}

.page-news__filter-input[id="filter-fix"]:checked ~ .page-news__timeline .page-news__log-item[data-category~="fix"] {
  display: flex;
}

/* ===== 行业观察 ===== */
.page-news__insights {
  padding: 1rem 0 3rem;
}

.page-news__insights-grid {
  display: grid;
  gap: 1.5rem;
}

.page-news__insight-card {
  display: flex;
  flex-direction: column;
  background: var(--white);
  border: 1px solid var(--card-line);
  overflow: hidden;
}

.page-news__insight-media img {
  display: block;
  width: 100%;
  height: auto;
}

.page-news__insight-body {
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
  padding: 1.5rem;
}

.page-news__insight-label {
  align-self: flex-start;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--orange);
}

.page-news__insight-body h3 {
  font-family: var(--font-display);
  font-size: 1.6rem;
  line-height: 1.25;
  margin: 0;
}

.page-news__insight-body p {
  font-size: 0.93rem;
  line-height: 1.7;
  color: var(--body-deep);
  margin: 0;
}

.page-news__insight-card--plain {
  position: relative;
  justify-content: center;
  padding: 1.5rem;
  background:
    linear-gradient(135deg, rgba(212, 175, 55, 0.07), transparent 60%),
    var(--white);
}

.page-news__insight-card--plain::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 0;
  width: 80px;
  height: 80px;
  background: linear-gradient(135deg, transparent 45%, rgba(255, 107, 53, 0.32) 45%, rgba(255, 107, 53, 0.32) 55%, transparent 55%);
  pointer-events: none;
}

.page-news__insight-card--plain h3 {
  font-family: var(--font-display);
  font-size: 1.5rem;
  line-height: 1.25;
  margin: 0.4rem 0 0.6rem;
  position: relative;
  z-index: 1;
}

.page-news__insight-card--plain p {
  position: relative;
  z-index: 1;
}

.page-news__insight-link {
  align-self: flex-start;
  position: relative;
  z-index: 1;
  color: var(--deep-purple);
  font-weight: 600;
  text-decoration: none;
  border-bottom: 1px solid var(--border-gold);
  margin-top: 0.6rem;
}

/* ===== 活动公告 ===== */
.page-news__events {
  padding: 1rem 0 3.5rem;
}

.page-news__event-banner {
  display: grid;
  grid-template-columns: 1fr;
  background: linear-gradient(110deg, var(--deep-purple) 0%, var(--deep-purple-light) 62%, rgba(212, 175, 55, 0.4) 135%);
  border: 1px solid rgba(212, 175, 55, 0.4);
  color: var(--white);
  overflow: hidden;
}

.page-news__event-media img {
  display: block;
  width: 100%;
  height: auto;
}

.page-news__event-body {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  padding: 2rem 1.5rem;
}

.page-news__event-badge {
  align-self: flex-start;
  background: var(--orange);
  color: var(--white);
}

.page-news__event-title {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  line-height: 1.2;
  margin: 0;
}

.page-news__event-body p {
  line-height: 1.7;
  opacity: 0.9;
  margin: 0;
}

.page-news__event-cta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem;
  margin-top: 0.8rem;
}

.page-news__event-btn {
  border-color: var(--gold-light);
  color: var(--white);
}

.page-news__event-btn:hover {
  background: var(--gold);
  color: var(--deep-purple);
}

.page-news__event-cta span {
  font-size: 0.85rem;
  color: var(--gold-light);
}

/* ===== 订阅引导 ===== */
.page-news__subscribe {
  background:
    radial-gradient(circle at 12% 20%, rgba(212, 175, 55, 0.2), transparent 40%),
    var(--deep-purple);
  color: var(--white);
  padding: 3.5rem var(--page-gutter);
}

.page-news__subscribe-inner {
  width: var(--page-band);
  margin: 0 auto;
  display: grid;
  gap: 2rem;
}

.page-news__subscribe-intro {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.page-news__subscribe .page-news__section-num {
  color: var(--gold-light);
}

.page-news__subscribe-title {
  color: var(--white);
}

.page-news__subscribe-desc {
  max-width: 34em;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.78);
  margin: 0;
}

.page-news__subscribe-box {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  align-items: stretch;
}

.page-news__sr-label {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

.page-news__subscribe-input {
  padding: 0.9rem 1rem;
  font-family: var(--font-body);
  font-size: 1rem;
  border: 1px solid rgba(212, 175, 55, 0.5);
  background: rgba(255, 255, 255, 0.08);
  color: var(--white);
  outline: none;
}

.page-news__subscribe-input::placeholder {
  color: rgba(255, 255, 255, 0.55);
}

.page-news__subscribe-input:focus {
  border-color: var(--gold);
  background: rgba(255, 255, 255, 0.14);
}

.page-news__subscribe-input:valid {
  border-color: rgba(212, 175, 55, 0.85);
}

.page-news__subscribe-input:invalid:not(:placeholder-shown) {
  border-color: var(--orange);
}

.page-news__subscribe-checkbox {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.page-news__subscribe-success {
  display: none;
  background: rgba(212, 175, 55, 0.12);
  border: 1px solid var(--gold-light);
  color: var(--gold-light);
  padding: 0.75rem 1rem;
  margin: 0;
  font-size: 0.9rem;
}

.page-news__subscribe-checkbox:checked ~ .page-news__subscribe-success {
  display: block;
}

.page-news__subscribe-note {
  font-size: 0.82rem;
  color: rgba(255, 255, 255, 0.65);
  margin: 0;
}

.page-news__subscribe-note a {
  color: var(--gold-light);
}

/* ===== 桌面端适配 ===== */
@media (min-width: 720px) {
  .page-news__log-card {
    grid-template-columns: 160px minmax(0, 1fr);
    gap: 1.25rem;
    padding: 1.1rem;
  }

  .page-news__subscribe-inner {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    align-items: center;
  }

  .page-news__subscribe-box {
    align-items: stretch;
  }
}

@media (min-width: 800px) {
  .page-news__hero {
    display: grid;
    grid-template-columns: minmax(0, 2fr) minmax(0, 1fr);
    gap: 2rem;
    align-items: end;
    padding: 4.5rem var(--page-gutter) 3.5rem;
  }

  .page-news__hero-panel {
    justify-content: flex-end;
    margin-top: 0;
  }

  .page-news__event-banner {
    grid-template-columns: 0.7fr 1.3fr;
  }

  .page-news__event-media img {
    height: 100%;
    object-fit: cover;
  }

  .page-news__subscribe-form {
    flex-direction: row;
    flex-wrap: wrap;
  }
}

@media (min-width: 960px) {
  .page-news__feature-grid {
    grid-template-columns: minmax(0, 2fr) minmax(0, 1fr);
  }

  .page-news__feature-card {
    display: grid;
    grid-template-columns: 58% minmax(0, 1fr);
  }

  .page-news__feature-media {
    position: relative;
    min-height: 440px;
  }

  .page-news__feature-img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
  }

  .page-news__insights-grid {
    grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.8fr);
  }
}