.page-news {
  --news-gap: clamp(18px, 3vw, 34px);
  --news-rail-w: 236px;
}

.page-news .news-hero {
  position: relative;
  padding: clamp(26px, 4vw, 56px) 0 clamp(20px, 3vw, 36px);
  overflow: hidden;
}

.page-news .news-hero::before {
  content: "";
  position: absolute;
  inset: -30% -10% auto -10%;
  height: 520px;
  background:
    radial-gradient(58% 70% at 78% 18%, rgba(10, 108, 255, .26), transparent 68%),
    radial-gradient(42% 58% at 12% 6%, rgba(0, 229, 195, .14), transparent 72%);
  pointer-events: none;
}

.page-news .news-hero-inner {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--news-gap);
  align-items: end;
}

.page-news .news-hero-copy .breadcrumbs {
  margin-bottom: 18px;
}

.page-news .news-kicker {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--cyan);
  text-transform: uppercase;
}

.page-news h1 {
  margin: 0 0 18px;
  font-size: clamp(34px, 6.4vw, 76px);
  font-weight: 900;
  line-height: 1.04;
  letter-spacing: -.02em;
  color: var(--mist);
}

.page-news .news-hero-copy .lede {
  max-width: 56ch;
  margin: 0 0 22px;
  color: var(--slate);
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.8;
}

.page-news .news-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-news .news-readouts {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.page-news .readout {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 14px 16px;
  background: var(--ink-850);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-news .readout:hover {
  border-color: var(--line-strong);
  background: var(--ink-800);
}

.page-news .readout--accent {
  border-color: rgba(255, 122, 26, .42);
  background: linear-gradient(150deg, rgba(255, 122, 26, .14), rgba(11, 31, 54, .9));
}

.page-news .readout-label {
  font-size: 12px;
  line-height: 1.4;
  color: var(--slate);
  letter-spacing: .04em;
}

.page-news .readout-value {
  font-family: var(--font-mono);
  font-size: clamp(26px, 3.4vw, 40px);
  font-weight: 700;
  line-height: 1;
  color: var(--cyan);
}

.page-news .readout--accent .readout-value {
  color: var(--orange);
}

.page-news .readout-unit {
  font-size: 12px;
  line-height: 1.5;
  color: var(--slate);
}

.page-news .news-hero-banner {
  position: relative;
  margin-top: clamp(20px, 3vw, 34px);
}

.page-news .news-hero-banner img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  object-fit: cover;
}

/* ---------- 档案列表 ---------- */
.page-news .news-archive-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(20px, 3vw, 36px);
  align-items: start;
  margin-top: clamp(22px, 3vw, 34px);
}

.page-news .news-rail {
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--ink-850);
  padding: 16px;
}

.page-news .rail-title {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .18em;
  color: var(--slate);
  text-transform: uppercase;
}

.page-news .rail-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-news .rail-list a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  color: var(--slate);
  text-decoration: none;
  font-size: 14px;
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-news .rail-list a:hover,
.page-news .rail-list a:focus-visible {
  border-color: var(--cyan);
  color: var(--mist);
  background: rgba(0, 229, 195, .07);
}

.page-news .rail-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  flex: 0 0 22px;
  border-radius: 6px;
  background: rgba(10, 108, 255, .18);
  color: var(--blue-soft);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
}

.page-news .rail-list a:hover .rail-num,
.page-news .rail-list a:focus-visible .rail-num {
  background: var(--cyan);
  color: var(--ink-900);
}

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

.page-news .rail-count {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--cyan);
}

.page-news .rail-note {
  margin: 14px 0 0;
  font-size: 12px;
  line-height: 1.7;
  color: var(--slate);
}

.page-news .news-archive-body {
  min-width: 0;
}

.page-news .archive-group + .archive-group {
  margin-top: clamp(24px, 3vw, 38px);
}

.page-news .archive-group-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px 14px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line-strong);
}

.page-news .archive-group-title {
  margin: 0;
  font-size: clamp(18px, 2.2vw, 22px);
  font-weight: 900;
  letter-spacing: -.01em;
  color: var(--mist);
}

.page-news .archive-group-note {
  font-size: 12px;
  color: var(--slate);
}

.page-news .archive-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-news .archive-item {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 8px;
  padding: 16px 0 16px 14px;
  border-bottom: 1px dashed var(--line);
  border-left: 2px solid transparent;
  transition: border-left-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-news .archive-item:hover {
  border-left-color: var(--cyan);
  background: linear-gradient(90deg, rgba(0, 229, 195, .06), transparent 62%);
}

.page-news .archive-no {
  font-family: var(--font-mono);
  font-size: 22px;
  font-weight: 700;
  line-height: 1;
  color: var(--blue-soft);
  transition: color var(--dur) var(--ease);
}

.page-news .archive-item:hover .archive-no {
  color: var(--cyan);
}

.page-news .archive-main {
  min-width: 0;
}

.page-news .archive-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-bottom: 8px;
}

.page-news .archive-time {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .06em;
  color: var(--slate);
}

.page-news .archive-title {
  margin: 0 0 6px;
  font-size: clamp(16px, 1.9vw, 18px);
  font-weight: 700;
  line-height: 1.5;
  color: var(--mist);
}

.page-news .archive-text {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--slate);
}

.page-news .archive-more {
  margin-top: 8px;
}

.page-news .archive-more summary {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;
  font-size: 13px;
  color: var(--blue-soft);
  list-style: none;
  transition: color var(--dur) var(--ease);
}

.page-news .archive-more summary::-webkit-details-marker {
  display: none;
}

.page-news .archive-more summary::before {
  content: "+";
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--cyan);
}

.page-news .archive-more[open] summary::before {
  content: "−";
}

.page-news .archive-more summary:hover {
  color: var(--cyan);
}

.page-news .archive-more p {
  margin: 10px 0 0;
  padding-left: 12px;
  border-left: 2px solid rgba(0, 229, 195, .35);
  font-size: 13px;
  line-height: 1.8;
  color: var(--slate);
}

/* ---------- 双轨 ---------- */
.page-news .track-input {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

.page-news .track-switch {
  position: relative;
  margin-top: clamp(20px, 3vw, 30px);
}

.page-news .track-labels {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 18px;
}

.page-news .track-labels label {
  padding: 8px 16px;
  border: 1px solid var(--line-strong);
  border-radius: var(--pill);
  font-size: 13px;
  color: var(--slate);
  cursor: pointer;
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-news .track-labels label:hover {
  border-color: var(--cyan);
  color: var(--mist);
}

.page-news #track-all:checked ~ .track-labels label[for="track-all"],
.page-news #track-stable:checked ~ .track-labels label[for="track-stable"],
.page-news #track-renew:checked ~ .track-labels label[for="track-renew"] {
  background: var(--blue);
  border-color: var(--blue);
  color: #FFFFFF;
}

.page-news #track-stable:checked ~ .track-grid .track-panel--renew,
.page-news #track-renew:checked ~ .track-grid .track-panel--stable {
  display: none;
}

.page-news .track-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
}

.page-news .track-panel {
  position: relative;
  padding: clamp(18px, 2.4vw, 26px);
  background: var(--ink-850);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  transition: border-color var(--dur) var(--ease);
}

.page-news .track-panel:hover {
  border-color: var(--line-strong);
}

.page-news .track-panel--stable {
  border-top: 3px solid var(--blue);
}

.page-news .track-panel--renew {
  border-top: 3px solid var(--orange);
}

.page-news .track-head h3 {
  margin: 10px 0 0;
  font-size: clamp(17px, 2.1vw, 21px);
  font-weight: 900;
  line-height: 1.4;
  color: var(--mist);
}

.page-news .track-text {
  margin: 10px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--slate);
}

.page-news .track-steps {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
  position: relative;
}

.page-news .track-steps::before {
  content: "";
  position: absolute;
  left: 9px;
  top: 6px;
  bottom: 8px;
  width: 2px;
  background: linear-gradient(180deg, rgba(61, 147, 255, .65), rgba(61, 147, 255, .08));
}

.page-news .track-panel--renew .track-steps::before {
  background: linear-gradient(180deg, rgba(255, 122, 26, .7), rgba(255, 122, 26, .08));
}

.page-news .track-steps li {
  position: relative;
  padding-left: 32px;
  padding-bottom: 14px;
}

.page-news .track-steps li:last-child {
  padding-bottom: 0;
}

.page-news .track-steps li::before {
  content: "";
  position: absolute;
  left: 3px;
  top: 5px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--ink-900);
  border: 2px solid var(--blue);
}

.page-news .track-panel--renew .track-steps li::before {
  border-color: var(--orange);
}

.page-news .track-steps li:hover::before {
  background: var(--cyan);
  border-color: var(--cyan);
}

.page-news .track-step-title {
  display: block;
  font-size: 14px;
  font-weight: 700;
  color: var(--mist);
  line-height: 1.6;
}

.page-news .track-step-desc {
  display: block;
  font-size: 13px;
  line-height: 1.75;
  color: var(--slate);
}

.page-news .track-figure {
  margin: clamp(18px, 2.6vw, 26px) 0 0;
}

.page-news .track-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  object-fit: cover;
}

.page-news .track-figure figcaption {
  margin-top: 10px;
  font-size: 12px;
  line-height: 1.7;
  color: var(--slate);
}

/* ---------- 适配专题 ---------- */
.page-news .topic-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
  margin-top: clamp(20px, 3vw, 30px);
}

.page-news .topic-figure {
  margin: 0;
}

.page-news .topic-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  object-fit: cover;
}

.page-news .topic-card {
  padding: 18px;
  border: 1px solid var(--line);
  border-left: 3px solid var(--blue);
  border-radius: var(--radius-md);
  background: var(--ink-800);
  transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-news .topic-card:hover {
  border-color: var(--cyan);
  border-left-color: var(--cyan);
  background: var(--ink-850);
}

.page-news .topic-card h3 {
  margin: 0 0 6px;
  font-size: 17px;
  font-weight: 900;
  color: var(--mist);
}

.page-news .topic-scope {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--cyan);
}

.page-news .topic-points {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-news .topic-points li {
  position: relative;
  padding-left: 14px;
  font-size: 13px;
  line-height: 1.75;
  color: var(--slate);
}

.page-news .topic-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 6px;
  height: 6px;
  border-radius: 1px;
  background: var(--blue-soft);
}

.page-news .topic-card--network {
  border-left-color: var(--cyan);
}

.page-news .topic-card--device {
  border-left-color: var(--green);
}

.page-news .topic-card--panel {
  border-left-color: var(--orange);
}

.page-news .check-scale {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 10px;
  margin-top: clamp(18px, 2.6vw, 26px);
  padding: clamp(16px, 2.2vw, 22px);
  border: 1px dashed var(--line-strong);
  border-radius: var(--radius-lg);
  background: rgba(10, 108, 255, .05);
}

.page-news .check-step {
  display: grid;
  grid-template-columns: 26px minmax(0, 1fr);
  grid-template-rows: auto auto;
  gap: 2px 10px;
  padding: 10px 12px;
  border-radius: var(--radius-md);
  background: var(--ink-850);
  border: 1px solid var(--line);
  transition: border-color var(--dur) var(--ease);
}

.page-news .check-step:hover {
  border-color: var(--cyan);
}

.page-news .check-num {
  grid-row: 1 / 3;
  align-self: center;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: rgba(0, 229, 195, .14);
  color: var(--cyan);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
}

.page-news .check-name {
  font-size: 14px;
  font-weight: 700;
  color: var(--mist);
  line-height: 1.5;
}

.page-news .check-desc {
  font-size: 12px;
  line-height: 1.7;
  color: var(--slate);
}

/* ---------- 使用记录变更 ---------- */
.page-news .record-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(18px, 2.6vw, 30px);
  align-items: center;
}

.page-news .record-copy .section-title {
  margin-top: 6px;
}

.page-news .record-copy .lede {
  color: var(--slate);
  font-size: 15px;
  line-height: 1.85;
}

.page-news .record-link {
  margin: 18px 0 0;
}

.page-news .record-figure {
  margin: 0;
}

.page-news .record-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  object-fit: cover;
}

.page-news .record-columns {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
  margin-top: clamp(20px, 3vw, 30px);
}

.page-news .record-column {
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--ink-850);
}

.page-news .record-column--new {
  border-top: 2px solid var(--cyan);
}

.page-news .record-column--edit {
  border-top: 2px solid var(--orange);
}

.page-news .record-column-title {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 12px;
  font-size: 15px;
  font-weight: 700;
  color: var(--mist);
}

.page-news .record-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-news .record-list li {
  display: grid;
  gap: 3px;
  padding: 10px 12px;
  border-left: 2px solid var(--line-strong);
  background: rgba(6, 17, 31, .5);
  border-radius: 0 8px 8px 0;
  transition: border-left-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-news .record-list li:hover {
  border-left-color: var(--cyan);
  background: rgba(0, 229, 195, .07);
}

.page-news .record-symptom {
  font-size: 14px;
  line-height: 1.65;
  color: var(--mist);
}

.page-news .record-locate {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .04em;
  color: var(--slate);
}

/* ---------- 维护节奏 ---------- */
.page-news .rhythm-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
  margin-top: clamp(20px, 3vw, 30px);
}

.page-news .rhythm-card {
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: linear-gradient(160deg, rgba(10, 108, 255, .1), rgba(11, 31, 54, .92));
  transition: border-color var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-news .rhythm-card:hover {
  border-color: var(--cyan);
}

.page-news .rhythm-cycle {
  display: inline-block;
  margin-bottom: 10px;
  padding: 4px 10px;
  border-radius: var(--pill);
  background: rgba(0, 229, 195, .14);
  color: var(--cyan);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
}

.page-news .rhythm-card h3 {
  margin: 0 0 8px;
  font-size: 17px;
  font-weight: 900;
  color: var(--mist);
}

.page-news .rhythm-card p {
  margin: 0;
  font-size: 13px;
  line-height: 1.8;
  color: var(--slate);
}

.page-news .rhythm-contact {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(18px, 2.6vw, 28px);
  margin-top: clamp(20px, 3vw, 30px);
  padding: clamp(18px, 2.6vw, 28px);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-lg);
  background: var(--ink-850);
}

.page-news .rhythm-contact-copy h3 {
  margin: 0 0 10px;
  font-size: clamp(19px, 2.4vw, 24px);
  font-weight: 900;
  line-height: 1.4;
  color: var(--mist);
}

.page-news .rhythm-contact-copy p {
  margin: 0 0 18px;
  font-size: 14px;
  line-height: 1.85;
  color: var(--slate);
}

.page-news .rhythm-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-news .rhythm-contact-info {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
  align-content: start;
}

.page-news .rhythm-contact-info li {
  display: grid;
  gap: 3px;
  padding: 10px 12px;
  border-radius: var(--radius-md);
  background: rgba(6, 17, 31, .6);
  border: 1px solid var(--line);
}

.page-news .info-label {
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--slate);
}

.page-news .info-value {
  font-size: 14px;
  line-height: 1.7;
  color: var(--mist);
  word-break: break-word;
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-news .topic-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-news .check-scale {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-news .rhythm-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-news .record-columns {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 880px) {
  .page-news .news-hero-inner {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr);
    align-items: end;
  }

  .page-news .track-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
  }

  .page-news .record-layout {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
  }

  .page-news .rhythm-contact {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr);
  }

  .page-news .archive-item {
    grid-template-columns: 64px minmax(0, 1fr);
    gap: 20px;
  }

  .page-news .archive-no {
    font-size: 28px;
    padding-top: 2px;
  }
}

@media (min-width: 960px) {
  .page-news .news-archive-grid {
    grid-template-columns: var(--news-rail-w) minmax(0, 1fr);
    gap: clamp(26px, 3.4vw, 44px);
  }

  .page-news .news-rail {
    position: sticky;
    top: 96px;
  }

  .page-news .check-scale {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }
}

@media (min-width: 1120px) {
  .page-news .topic-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-news .topic-figure {
    grid-column: 1 / -1;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .readout,
  .page-news .rail-list a,
  .page-news .archive-item,
  .page-news .archive-no,
  .page-news .track-panel,
  .page-news .topic-card,
  .page-news .check-step,
  .page-news .record-list li,
  .page-news .rhythm-card {
    transition: none;
  }
}