/* ===== 页面：版本专题 /topics/ ===== */

.page-news {
  background: var(--paper);
  color: var(--ink);
}

.page-news .mono {
  font-family: var(--font-mono);
}

/* ---------- 页首 ---------- */

.page-news .news-hero {
  position: relative;
  overflow: hidden;
  background: var(--blue);
  color: var(--glaze);
  padding: clamp(1.2rem, 3vw, 1.8rem) 0 clamp(2.4rem, 6vw, 4.4rem);
}

.page-news .news-hero::after {
  content: "";
  position: absolute;
  inset: -15% -5% -15% -5%;
  background: linear-gradient(116deg,
    transparent 0 43%,
    rgba(192, 138, 46, 0.20) 43% 50%,
    rgba(122, 77, 219, 0.15) 50% 53%,
    transparent 53% 100%);
  pointer-events: none;
}

.page-news .news-hero > .shell {
  position: relative;
  z-index: 1;
}

.page-news .news-hero .breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem 0.7rem;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 0.8125rem;
}

.page-news .news-hero .breadcrumb__item::after {
  content: "/";
  margin-left: 0.7rem;
  color: rgba(255, 255, 255, 0.32);
}

.page-news .news-hero .breadcrumb__link {
  color: rgba(255, 255, 255, 0.72);
  transition: color 0.2s var(--ease);
}

.page-news .news-hero .breadcrumb__link:hover {
  color: var(--brass-soft);
}

.page-news .news-hero .breadcrumb__current {
  font-family: var(--font-mono);
  letter-spacing: 0.06em;
  color: var(--brass-soft);
}

.page-news .news-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.8rem;
  margin-top: 1.6rem;
}

.page-news .news-hero .kicker {
  color: var(--brass-soft);
  letter-spacing: 0.12em;
}

.page-news .news-hero h1 {
  font-family: var(--font-serif);
  font-size: clamp(1.75rem, 4.4vw, 3.15rem);
  line-height: 1.18;
  letter-spacing: 0.01em;
  margin: 0.55rem 0 0;
  color: var(--glaze);
  max-width: 20ch;
}

.page-news .news-hero__intro {
  margin: 1.05rem 0 0;
  max-width: 46ch;
  font-size: clamp(0.9375rem, 2.1vw, 1.0625rem);
  line-height: 1.95;
  color: rgba(255, 255, 255, 0.85);
}

.page-news .news-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin-top: 1.6rem;
}

.page-news .news-hero__figure {
  margin: 0;
  padding: 8px;
  border: 1px solid rgba(231, 211, 163, 0.42);
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.08);
}

.page-news .news-hero__figure img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 3px;
}

/* ---------- 通用章节 ---------- */

.page-news .news-section {
  padding: clamp(2.4rem, 6vw, 4.6rem) 0;
}

.page-news .news-section--deep {
  background: var(--deep);
  color: var(--glaze);
}

.page-news .news-section__title {
  font-family: var(--font-serif);
  font-size: clamp(1.5rem, 3.4vw, 2.25rem);
  line-height: 1.26;
  letter-spacing: 0.01em;
  margin: 0.45rem 0 0;
  color: var(--ink);
}

.page-news .news-section--deep .news-section__title,
.page-news .news-more .news-section__title {
  color: var(--glaze);
}

.page-news .news-section__sub {
  margin: 0.85rem 0 0;
  max-width: 62ch;
  font-size: 1rem;
  line-height: 1.9;
  color: var(--gray);
}

.page-news .news-section--deep .news-section__sub {
  color: rgba(255, 255, 255, 0.68);
}

/* ---------- 本期导读 ---------- */

.page-news .news-lead {
  background: var(--paper);
}

.page-news .news-lead__list {
  list-style: none;
  margin: 2rem 0 0;
  padding: 0;
  display: grid;
  gap: 0.9rem;
}

.page-news .news-lead__item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 0.35rem 1rem;
  padding: 1.15rem 1.2rem 1.25rem;
  background: var(--glaze);
  border: 1px solid var(--pale);
  border-left: 3px solid var(--brass);
  border-radius: 4px;
  transition: border-color 0.25s var(--ease), box-shadow 0.25s var(--ease);
}

.page-news .news-lead__item:hover {
  border-color: var(--brass);
  border-left-color: var(--brass);
  box-shadow: 0 10px 26px -18px rgba(12, 31, 51, 0.5);
}

.page-news .news-lead__num {
  grid-row: 1 / 3;
  font-size: 1.3rem;
  line-height: 1;
  letter-spacing: 0.06em;
  color: var(--brass);
  padding-top: 0.15rem;
}

.page-news .news-lead__item h3 {
  margin: 0;
  font-size: 1.0625rem;
  font-weight: 800;
  letter-spacing: 0.03em;
  line-height: 1.55;
}

.page-news .news-lead__item p {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.85;
  color: var(--gray);
}

/* ---------- 分类索引 ---------- */

.page-news .news-index {
  background: linear-gradient(180deg, var(--paper) 0%, #F1EBDF 100%);
}

.page-news .news-cats {
  list-style: none;
  margin: 1.9rem 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.85rem;
}

.page-news .news-cat__link {
  display: block;
  height: 100%;
  padding: 1.1rem 1.1rem 1.25rem;
  background: var(--glaze);
  border: 1px solid var(--pale);
  border-radius: 4px;
  color: var(--ink);
  transition: border-color 0.25s var(--ease), transform 0.25s var(--ease), box-shadow 0.25s var(--ease);
}

.page-news .news-cat__link:hover,
.page-news .news-cat__link:focus-visible {
  border-color: var(--brass);
  transform: translateY(-2px);
  box-shadow: 0 12px 26px -20px rgba(12, 31, 51, 0.55);
}

.page-news .news-cat__num {
  display: block;
  font-size: 1.5rem;
  line-height: 1;
  letter-spacing: 0.06em;
  color: var(--brass);
}

.page-news .news-cat__name {
  display: block;
  margin-top: 0.85rem;
  font-size: 1.0625rem;
  font-weight: 800;
  letter-spacing: 0.04em;
}

.page-news .news-cat__desc {
  display: block;
  margin-top: 0.45rem;
  font-size: 0.875rem;
  line-height: 1.8;
  color: var(--gray);
}

.page-news .news-cat__count {
  display: block;
  margin-top: 0.9rem;
  padding-top: 0.7rem;
  border-top: 1px solid var(--pale);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  color: var(--blue);
}

/* ---------- 更新清单 ---------- */

.page-news .news-list-section {
  background: var(--paper);
}

.page-news .news-group + .news-group {
  margin-top: clamp(2rem, 4.5vw, 3.2rem);
}

.page-news .news-group__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.55rem 0.85rem;
  padding-bottom: 0.7rem;
  border-bottom: 2px solid var(--ink);
}

.page-news .news-group__head h3 {
  margin: 0;
  font-size: 1.2rem;
  font-weight: 800;
  letter-spacing: 0.04em;
}

.page-news .news-group__meta {
  margin-left: auto;
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  color: var(--gray);
}

.page-news .news-entries {
  list-style: none;
  margin: 0.2rem 0 0;
  padding: 0;
}

.page-news .news-entry {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.3rem;
  padding: 0.95rem 0.95rem 1rem;
  border-left: 3px solid transparent;
  border-bottom: 1px solid var(--pale);
  transition: background-color 0.22s var(--ease), border-color 0.22s var(--ease);
}

.page-news .news-entry:nth-child(odd) {
  background: rgba(216, 228, 242, 0.26);
}

.page-news .news-entry:hover {
  background: var(--glaze);
  border-left-color: var(--brass);
}

.page-news .news-entry__time {
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  color: var(--blue);
}

.page-news .news-entry__title {
  margin: 0;
  font-size: 1rem;
  font-weight: 700;
  line-height: 1.6;
  letter-spacing: 0.01em;
}

.page-news .news-entry__desc {
  margin: 0.35rem 0 0;
  font-size: 0.9rem;
  line-height: 1.8;
  color: var(--gray);
}

.page-news .news-group__figure {
  margin: 1.1rem 0 0;
  border: 1px solid var(--pale);
  border-radius: 4px;
  overflow: hidden;
  background: var(--glaze);
}

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

/* ---------- 版本时间轴 ---------- */

.page-news .news-timeline {
  padding-bottom: 0;
}

.page-news .news-timeline__figure {
  margin: 1.8rem 0 0;
  border: 1px solid rgba(216, 228, 242, 0.24);
  border-radius: 4px;
  overflow: hidden;
}

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

.page-news .news-timeline__rail {
  margin-top: clamp(1.6rem, 4vw, 2.6rem);
  padding-inline: max(1.15rem, calc((100% - var(--shell-max)) / 2 + 1.15rem));
  padding-bottom: clamp(2.4rem, 6vw, 4.2rem);
  overflow-x: auto;
  overflow-y: hidden;
  scroll-snap-type: x proximity;
  -webkit-overflow-scrolling: touch;
}

.page-news .news-timeline__rail:focus-visible {
  outline: 2px solid var(--brass);
  outline-offset: -2px;
}

.page-news .news-track {
  display: flex;
  gap: 0.85rem;
  width: max-content;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-news .news-node {
  position: relative;
  flex: 0 0 clamp(206px, 23vw, 256px);
  scroll-snap-align: start;
  padding: 1.2rem 1.05rem 1.3rem;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(216, 228, 242, 0.2);
  border-radius: 5px;
  transition: transform 0.25s var(--ease), border-color 0.25s var(--ease), background-color 0.25s var(--ease);
}

.page-news .news-node::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--pale);
  border-radius: 5px 5px 0 0;
}

.page-news .news-node--entry::before { background: var(--brass); }
.page-news .news-node--fav::before { background: var(--glaze); }
.page-news .news-node--room::before { background: var(--neon); }
.page-news .news-node--version::before { background: var(--pale); }

.page-news .news-node:hover {
  transform: scale(1.02);
  border-color: rgba(192, 138, 46, 0.7);
  background: rgba(255, 255, 255, 0.1);
}

.page-news .news-node__ver {
  display: block;
  margin-top: 0.35rem;
  font-size: 0.9375rem;
  letter-spacing: 0.08em;
  color: var(--brass-soft);
}

.page-news .news-node__when {
  display: block;
  margin-top: 0.2rem;
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  color: rgba(255, 255, 255, 0.52);
}

.page-news .news-node__text {
  margin: 0.7rem 0 0;
  font-size: 0.9rem;
  line-height: 1.78;
  color: rgba(255, 255, 255, 0.84);
}

/* ---------- 反馈闭环 ---------- */

.page-news .news-feedback {
  background: var(--paper);
}

.page-news .news-flow {
  list-style: none;
  counter-reset: newsflow;
  margin: 2rem 0 0;
  padding: 0;
  display: grid;
  gap: 1.15rem;
}

.page-news .news-flow__step {
  position: relative;
  counter-increment: newsflow;
  padding-left: 3.2rem;
}

.page-news .news-flow__step::before {
  content: counter(newsflow, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 0.05rem;
  width: 2.2rem;
  height: 2.2rem;
  line-height: 2.15rem;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  letter-spacing: 0.04em;
  color: var(--brass);
  border: 1px solid var(--brass-soft);
  border-radius: 50%;
  background: var(--glaze);
}

.page-news .news-flow__step:not(:last-child)::after {
  content: "";
  position: absolute;
  left: 1.1rem;
  top: 2.45rem;
  bottom: -1.15rem;
  width: 1px;
  background: var(--brass-soft);
}

.page-news .news-flow__step h3 {
  margin: 0;
  font-size: 1.0625rem;
  font-weight: 800;
  letter-spacing: 0.03em;
  line-height: 1.55;
}

.page-news .news-flow__step p {
  margin: 0.4rem 0 0;
  font-size: 0.9375rem;
  line-height: 1.85;
  color: var(--gray);
}

.page-news .news-feedback .note {
  margin-top: 2rem;
}

/* ---------- 下一步 ---------- */

.page-news .news-more {
  background: var(--blue);
  color: var(--glaze);
}

.page-news .news-more .kicker {
  color: var(--brass-soft);
}

.page-news .news-more__list {
  list-style: none;
  margin: 1.7rem 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.7rem;
}

.page-news .news-more__link {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  height: 100%;
  padding: 0.95rem 1.05rem 1.05rem;
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: 4px;
  color: var(--glaze);
  font-size: 0.9375rem;
  line-height: 1.75;
  transition: border-color 0.25s var(--ease), background-color 0.25s var(--ease);
}

.page-news .news-more__link:hover,
.page-news .news-more__link:focus-visible {
  border-color: var(--brass);
  background: rgba(255, 255, 255, 0.09);
}

.page-news .news-more__label {
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  color: var(--brass-soft);
}

/* ---------- 回到顶部 ---------- */

.page-news .news-totop {
  position: fixed;
  right: 0.9rem;
  bottom: 0.9rem;
  z-index: 30;
  display: grid;
  place-items: center;
  width: 2.8rem;
  height: 2.8rem;
  border-radius: 50%;
  background: var(--deep);
  border: 1px solid rgba(192, 138, 46, 0.55);
  color: var(--brass);
  font-size: 0.6875rem;
  letter-spacing: 0.08em;
  transition: background-color 0.25s var(--ease), border-color 0.25s var(--ease);
}

.page-news .news-totop:hover {
  background: var(--blue);
  border-color: var(--brass);
}

/* ---------- 断点 ---------- */

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

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

  .page-news .news-entry {
    grid-template-columns: 132px minmax(0, 1fr);
    gap: 0 1.4rem;
    align-items: baseline;
    padding-inline: 1.1rem;
  }

  .page-news .news-entry__time {
    padding-top: 0.2rem;
  }
}

@media (min-width: 900px) {
  .page-news .news-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: center;
    gap: clamp(2rem, 4vw, 3.4rem);
    margin-top: 2.2rem;
  }

  .page-news .news-flow {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1.6rem 2rem;
  }

  .page-news .news-flow__step:not(:last-child)::after {
    display: none;
  }
}

@media (min-width: 1024px) {
  .page-news .news-cats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-news .news-more__list {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-news .news-totop {
    right: 1.5rem;
    bottom: 1.5rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .news-cat__link,
  .page-news .news-node {
    transition: none;
  }

  .page-news .news-cat__link:hover,
  .page-news .news-node:hover {
    transform: none;
  }
}