.page-news {
  --pn-gap: clamp(52px, 7.5vw, 100px);
  --pn-pad: clamp(16px, 4vw, 48px);
  --pn-line: var(--line-700);
  position: relative;
  max-width: var(--max-w);
  margin-inline: auto;
  padding: clamp(16px, 3vw, 28px) var(--pn-pad) clamp(64px, 9vw, 112px);
  color: var(--paper-100);
  font-family: var(--font-body);
  overflow-x: hidden;
}

.page-news .pn-section {
  margin-top: var(--pn-gap);
}

/* ---------- 面包屑 ---------- */
.page-news .breadcrumb {
  margin-bottom: clamp(12px, 2vw, 20px);
}

/* ---------- 通用小标签 ---------- */
.page-news .pn-kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0;
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: 0.14em;
  color: var(--steel-400);
}

.page-news .pn-kicker__bar {
  display: inline-block;
  width: 26px;
  height: 2px;
  background: var(--amber-500);
}

/* ---------- 首屏框景 ---------- */
.page-news .pn-hero {
  position: relative;
  margin-top: clamp(10px, 2vw, 18px);
  padding: clamp(20px, 3.4vw, 46px);
  border: 1px solid var(--pn-line);
  background:
    linear-gradient(158deg, rgba(12, 32, 56, 0.96), rgba(4, 11, 20, 0.99) 66%),
    var(--ink-950);
  overflow: hidden;
}

.page-news .pn-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(45, 125, 255, 0.09) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(45, 125, 255, 0.09) 1px, transparent 1px);
  background-size: 46px 46px;
  -webkit-mask-image: linear-gradient(to bottom, #000 0%, transparent 82%);
  mask-image: linear-gradient(to bottom, #000 0%, transparent 82%);
  pointer-events: none;
}

.page-news .pn-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--blue-500), var(--amber-500) 62%, transparent);
  opacity: 0.7;
}

.page-news .pn-hero__mark {
  position: absolute;
  top: -0.16em;
  right: clamp(-4px, 1vw, 14px);
  font-family: var(--font-mono);
  font-size: clamp(52px, 11vw, 132px);
  line-height: 1;
  letter-spacing: -0.04em;
  color: rgba(23, 50, 79, 0.5);
  -webkit-text-stroke: 1px rgba(143, 166, 194, 0.2);
  pointer-events: none;
  user-select: none;
}

.page-news .pn-hero__grid {
  position: relative;
  display: grid;
  gap: clamp(24px, 3.5vw, 44px);
}

.page-news .pn-hero__title {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(32px, 6.2vw, 66px);
  line-height: 1.04;
  letter-spacing: -0.02em;
  color: #fff;
}

.page-news .pn-hero__title em {
  font-style: normal;
  color: var(--amber-500);
}

.page-news .pn-hero__lead {
  max-width: 40em;
  margin: clamp(14px, 2vw, 20px) 0 0;
  font-size: clamp(15px, 1.7vw, 17px);
  line-height: 1.78;
  color: rgba(233, 240, 248, 0.8);
}

.page-news .pn-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(20px, 3vw, 30px);
}

.page-news .pn-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px 18px;
  margin: clamp(24px, 3.2vw, 36px) 0 0;
  padding-top: 16px;
  border-top: 1px solid var(--pn-line);
}

.page-news .pn-stats__item {
  min-width: 0;
}

.page-news .pn-stats__label {
  margin: 0;
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--steel-400);
}

.page-news .pn-stats__value {
  margin: 6px 0 0;
  font-size: clamp(18px, 2.2vw, 24px);
  font-weight: 500;
  color: #fff;
}

.page-news .pn-hero__figure {
  margin: 0;
  align-self: start;
}

.page-news .pn-hero__figure img,
.page-news .pn-page03__figure img,
.page-news .pn-scenes__figure img,
.page-news .pn-numbering__figure img {
  display: block;
  width: 100%;
  height: auto;
}

/* ---------- 区块头 ---------- */
.page-news .pn-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 6px 14px;
  padding-bottom: 12px;
  margin-bottom: clamp(18px, 2.6vw, 30px);
  border-bottom: 1px solid var(--pn-line);
}

.page-news .pn-head__idx {
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--amber-500);
}

.page-news .pn-head__title {
  flex: 1 1 320px;
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(24px, 3.2vw, 40px);
  line-height: 1.12;
  letter-spacing: -0.01em;
  color: #fff;
}

.page-news .pn-head__note {
  font-size: 11.5px;
  letter-spacing: 0.1em;
  color: var(--steel-400);
}

/* ---------- 第 3 页专题 ---------- */
.page-news .pn-page03 {
  position: relative;
  overflow: hidden;
}

.page-news .pn-page03__watermark {
  position: absolute;
  top: -0.28em;
  right: -0.04em;
  font-family: var(--font-mono);
  font-size: clamp(150px, 26vw, 320px);
  line-height: 1;
  color: rgba(45, 125, 255, 0.08);
  pointer-events: none;
  user-select: none;
}

.page-news .pn-page03__lead {
  position: relative;
  max-width: 46em;
  margin: 0 0 clamp(22px, 3vw, 34px);
  font-size: clamp(15px, 1.7vw, 17px);
  line-height: 1.8;
  color: rgba(233, 240, 248, 0.76);
}

.page-news .pn-page03__grid {
  position: relative;
  display: grid;
  gap: 0;
  border-top: 1px solid var(--pn-line);
}

.page-news .pn-p3item {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 4px 14px;
  padding: 18px 4px 18px 0;
  border-bottom: 1px solid var(--pn-line);
}

.page-news .pn-p3item__no {
  grid-row: 1 / span 2;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--amber-500);
  padding-top: 4px;
}

.page-news .pn-p3item__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  line-height: 1.4;
  color: #fff;
}

.page-news .pn-p3item__text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: rgba(233, 240, 248, 0.66);
}

.page-news .pn-page03__figure {
  margin: clamp(22px, 3vw, 34px) 0 0;
}

/* ---------- 浅色阅读区 ---------- */
.page-news .pn-section--light {
  margin-inline: calc(-1 * var(--pn-pad));
  padding: clamp(26px, 4vw, 52px) var(--pn-pad);
  background: var(--paper-100);
  color: var(--ink-950);
}

.page-news .pn-section--light .pn-head {
  border-bottom-color: rgba(4, 11, 20, 0.16);
}

.page-news .pn-section--light .pn-head__title {
  color: var(--ink-950);
}

.page-news .pn-section--light .pn-head__idx {
  color: var(--amber-700);
}

.page-news .pn-section--light .pn-head__note {
  color: rgba(4, 11, 20, 0.55);
}

/* ---------- 场景标签 ---------- */
.page-news .pn-scenes__lead {
  max-width: 46em;
  margin: 0 0 clamp(20px, 3vw, 30px);
  font-size: clamp(15px, 1.7vw, 17px);
  line-height: 1.78;
  color: rgba(4, 11, 20, 0.72);
}

.page-news .pn-tags {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid rgba(4, 11, 20, 0.16);
}

.page-news .pn-tags__item {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 4px 18px;
  padding: 16px 0;
  border-bottom: 1px solid rgba(4, 11, 20, 0.16);
}

.page-news .pn-tags__no {
  font-size: 11.5px;
  letter-spacing: 0.1em;
  color: var(--amber-700);
}

.page-news .pn-tags__name {
  margin: 0;
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 700;
  letter-spacing: 0.01em;
  color: var(--ink-950);
}

.page-news .pn-tags__desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: rgba(4, 11, 20, 0.66);
}

.page-news .pn-scenes__figure {
  margin: clamp(22px, 3vw, 32px) 0 0;
}

.page-news .pn-scenes__figure .img-frame__caption {
  color: rgba(4, 11, 20, 0.6);
}

/* ---------- 收录列表 ---------- */
.page-news .pn-records-sec {
  position: relative;
}

.page-news .pn-filter__input {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

.page-news .pn-records__intro {
  max-width: 46em;
  margin: 0 0 clamp(16px, 2.4vw, 24px);
  font-size: clamp(15px, 1.7vw, 16.5px);
  line-height: 1.78;
  color: rgba(233, 240, 248, 0.72);
}

.page-news .pn-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: clamp(14px, 2vw, 20px);
}

.page-news .pn-chip {
  display: inline-flex;
  align-items: center;
  padding: 7px 14px;
  border: 1px solid var(--pn-line);
  background: transparent;
  color: var(--steel-400);
  font-size: 13px;
  letter-spacing: 0.05em;
  line-height: 1.4;
  cursor: pointer;
  transition: border-color var(--ease), color var(--ease), background var(--ease);
}

.page-news .pn-chip:hover {
  border-color: var(--amber-500);
  color: var(--paper-100);
}

.page-news #scene-all:checked ~ .pn-filter label[for="scene-all"],
.page-news #scene-login:checked ~ .pn-filter label[for="scene-login"],
.page-news #scene-team:checked ~ .pn-filter label[for="scene-team"],
.page-news #scene-deploy:checked ~ .pn-filter label[for="scene-deploy"],
.page-news #scene-migrate:checked ~ .pn-filter label[for="scene-migrate"],
.page-news #scene-support:checked ~ .pn-filter label[for="scene-support"] {
  border-color: var(--amber-500);
  background: rgba(255, 158, 44, 0.12);
  color: #fff;
}

.page-news #scene-all:focus-visible ~ .pn-filter label[for="scene-all"],
.page-news #scene-login:focus-visible ~ .pn-filter label[for="scene-login"],
.page-news #scene-team:focus-visible ~ .pn-filter label[for="scene-team"],
.page-news #scene-deploy:focus-visible ~ .pn-filter label[for="scene-deploy"],
.page-news #scene-migrate:focus-visible ~ .pn-filter label[for="scene-migrate"],
.page-news #scene-support:focus-visible ~ .pn-filter label[for="scene-support"] {
  outline: 2px solid var(--blue-500);
  outline-offset: 2px;
}

.page-news #scene-login:checked ~ .pn-case-list .pn-case:not([data-scene~="login"]),
.page-news #scene-team:checked ~ .pn-case-list .pn-case:not([data-scene~="team"]),
.page-news #scene-deploy:checked ~ .pn-case-list .pn-case:not([data-scene~="deploy"]),
.page-news #scene-migrate:checked ~ .pn-case-list .pn-case:not([data-scene~="migrate"]),
.page-news #scene-support:checked ~ .pn-case-list .pn-case:not([data-scene~="support"]) {
  display: none;
}

.page-news .pn-records__jump {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px 14px;
  margin: 0 0 clamp(14px, 2vw, 18px);
  font-size: 12.5px;
}

.page-news .pn-records__jump-label {
  letter-spacing: 0.12em;
  color: var(--steel-400);
}

.page-news .pn-records__jump a {
  color: var(--paper-100);
  text-decoration: none;
  border-bottom: 1px solid rgba(143, 166, 194, 0.45);
  padding-bottom: 1px;
  transition: color var(--ease), border-color var(--ease);
}

.page-news .pn-records__jump a:hover {
  color: var(--amber-500);
  border-color: var(--amber-500);
}

.page-news .pn-case-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-bottom: 1px solid var(--pn-line);
}

.page-news .pn-case {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 6px;
  padding: 16px 12px 16px 18px;
  border-top: 1px solid var(--pn-line);
  transition: background var(--ease);
}

.page-news .pn-case::before {
  content: "";
  position: absolute;
  left: 0;
  top: 12px;
  bottom: 12px;
  width: 2px;
  background: var(--amber-500);
  transform: scaleY(0);
  transform-origin: top center;
  transition: transform var(--ease);
}

.page-news .pn-case:hover {
  background: rgba(45, 125, 255, 0.06);
}

.page-news .pn-case:hover::before,
.page-news .pn-case:focus-within::before {
  transform: scaleY(1);
}

.page-news .pn-case__no {
  font-size: 12.5px;
  letter-spacing: 0.02em;
  color: var(--steel-400);
}

.page-news .pn-case:hover .pn-case__no {
  color: var(--amber-500);
}

.page-news .pn-case__time {
  font-size: 11.5px;
  letter-spacing: 0.12em;
  color: rgba(143, 166, 194, 0.85);
}

.page-news .pn-case__main {
  min-width: 0;
}

.page-news .pn-case__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: 16.5px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--paper-100);
}

.page-news .pn-case__desc {
  margin: 6px 0 0;
  font-size: 14px;
  line-height: 1.72;
  color: rgba(233, 240, 248, 0.64);
}

.page-news .pn-case__tag {
  justify-self: start;
  align-self: start;
  padding: 4px 9px;
  border: 1px solid var(--pn-line);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--steel-400);
  white-space: nowrap;
}

.page-news .pn-case__more {
  margin-top: 8px;
}

.page-news .pn-case__more summary {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12.5px;
  letter-spacing: 0.08em;
  color: var(--amber-500);
  cursor: pointer;
  list-style: none;
}

.page-news .pn-case__more summary::-webkit-details-marker {
  display: none;
}

.page-news .pn-case__more summary::before {
  content: "＋";
  font-size: 13px;
}

.page-news .pn-case__more[open] summary::before {
  content: "－";
}

.page-news .pn-case__more p {
  margin: 9px 0 0;
  padding-left: 12px;
  border-left: 1px solid var(--pn-line);
  font-size: 13.5px;
  line-height: 1.78;
  color: rgba(233, 240, 248, 0.62);
}

/* ---------- 编号规则 ---------- */
.page-news .pn-numbering__grid {
  display: grid;
  gap: clamp(22px, 3vw, 36px);
}

.page-news .pn-rules {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--pn-line);
}

.page-news .pn-rules__item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 4px 16px;
  padding: 16px 0;
  border-bottom: 1px solid var(--pn-line);
}

.page-news .pn-rules__no {
  grid-row: 1 / span 2;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--blue-500);
  padding-top: 4px;
}

.page-news .pn-rules__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 700;
  line-height: 1.45;
  color: #fff;
}

.page-news .pn-rules__text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.76;
  color: rgba(233, 240, 248, 0.68);
}

.page-news .pn-rules__em {
  display: inline-block;
  padding: 0 5px;
  color: var(--amber-500);
  border-bottom: 1px solid var(--amber-700);
}

.page-news .pn-numbering__figure {
  margin: 0;
  align-self: start;
}

/* ---------- 下一步 ---------- */
.page-news .pn-next__lead {
  max-width: 44em;
  margin: 0 0 clamp(18px, 2.6vw, 26px);
  font-size: clamp(15px, 1.7vw, 16.5px);
  line-height: 1.78;
  color: rgba(4, 11, 20, 0.72);
}

.page-news .pn-next__list {
  border-top: 1px solid rgba(4, 11, 20, 0.16);
}

.page-news .pn-next__link {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: start;
  gap: 12px;
  padding: 16px 12px 16px 4px;
  border-bottom: 1px solid rgba(4, 11, 20, 0.16);
  color: var(--ink-950);
  text-decoration: none;
  transition: background var(--ease), padding-left var(--ease);
}

.page-news .pn-next__link:hover,
.page-news .pn-next__link:focus-visible {
  background: rgba(45, 125, 255, 0.1);
  padding-left: 12px;
}

.page-news .pn-next__arrow {
  font-size: 15px;
  color: var(--amber-700);
  line-height: 1.5;
}

.page-news .pn-next__body {
  display: block;
  min-width: 0;
}

.page-news .pn-next__name {
  display: block;
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 700;
  letter-spacing: 0.01em;
}

.page-news .pn-next__desc {
  display: block;
  margin-top: 5px;
  font-size: 14px;
  line-height: 1.72;
  color: rgba(4, 11, 20, 0.68);
}

.page-news .pn-next__foot {
  margin: clamp(16px, 2.4vw, 22px) 0 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: rgba(4, 11, 20, 0.66);
}

.page-news .pn-next__foot a {
  color: var(--blue-700);
  text-decoration: none;
  border-bottom: 1px solid rgba(11, 63, 168, 0.4);
}

.page-news .pn-next__foot a:hover {
  color: var(--amber-700);
  border-color: var(--amber-700);
}

/* ---------- 响应式 ---------- */
@media (min-width: 560px) {
  .page-news .pn-stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-news .pn-tags__item {
    grid-template-columns: 88px minmax(0, 1fr);
    align-items: baseline;
  }

  .page-news .pn-tags__no {
    grid-row: 1 / span 2;
  }

  .page-news .pn-tags__name {
    grid-column: 2;
  }

  .page-news .pn-tags__desc {
    grid-column: 2;
  }
}

@media (min-width: 860px) {
  .page-news .pn-case {
    grid-template-columns: 132px 96px minmax(0, 1fr) 112px;
    align-items: start;
    gap: 6px 20px;
    padding: 18px 16px 18px 22px;
  }

  .page-news .pn-case__no {
    padding-top: 3px;
  }

  .page-news .pn-case__time {
    padding-top: 4px;
  }

  .page-news .pn-case__tag {
    justify-self: end;
    margin-top: 2px;
  }

  .page-news .pn-page03__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-news .pn-p3item {
    border-bottom: none;
    border-right: 1px solid var(--pn-line);
    padding: 20px 22px 20px 0;
  }

  .page-news .pn-p3item:last-child {
    border-right: none;
    padding-right: 0;
  }
}

@media (min-width: 940px) {
  .page-news .pn-hero__grid {
    grid-template-columns: minmax(0, 1.06fr) minmax(0, 0.94fr);
    align-items: start;
  }

  .page-news .pn-numbering__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.82fr);
  }

  .page-news .pn-tags__item {
    grid-template-columns: 96px minmax(0, 1fr);
  }
}

@media (min-width: 1180px) {
  .page-news .pn-hero__title {
    font-size: clamp(44px, 4.6vw, 68px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .pn-case,
  .page-news .pn-case::before,
  .page-news .pn-chip,
  .page-news .pn-next__link,
  .page-news .pn-records__jump a {
    transition: none;
  }
}