/* ==========================================================
   观察报告 / page-news
   纵向报告轴 + 分类筛选 + 专题聚合 + 三段阅读路径
   ========================================================== */

.page-news {
  --rpt-line-x: 5px;
  --rpt-col-gap: 52px;
  --rpt-tick: 12px;
}

/* ---------- 通用可读性兜底 ---------- */

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

.page-news a:focus-visible,
.page-news button:focus-visible,
.page-news summary:focus-visible,
.page-news label:focus-visible {
  outline: 3px solid var(--blue);
  outline-offset: 2px;
}

/* ---------- 首屏 ---------- */

.page-news .rpt-hero {
  display: grid;
  gap: 32px;
  align-items: start;
}

.page-news .rpt-hero__main {
  min-width: 0;
}

.page-news .rpt-hero__main .crumbs {
  margin-bottom: 16px;
}

.page-news .rpt-hero__intro {
  max-width: 34em;
  margin: 14px 0 0;
  font-size: 16px;
  line-height: 1.85;
  color: var(--black);
}

.page-news .rpt-hero__acts {
  margin-top: 24px;
}

.page-news .rpt-hero__side {
  padding: clamp(20px, 3vw, 28px);
  min-width: 0;
}

.page-news .rpt-facts {
  display: grid;
  gap: 0;
  margin: 16px 0 20px;
}

.page-news .rpt-facts__row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  padding: 9px 0;
  border-bottom: 1px dashed var(--line-invert);
}

.page-news .rpt-facts__row:last-child {
  border-bottom: 0;
}

.page-news .rpt-facts dt {
  font-size: 14px;
  line-height: 1.6;
  color: var(--mist);
  opacity: 0.82;
}

.page-news .rpt-facts dd {
  margin: 0;
  font-size: 20px;
  line-height: 1.3;
  font-weight: 700;
  color: var(--orange);
  letter-spacing: 0.01em;
}

.page-news .rpt-hero__star {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 100%;
}

.page-news .rpt-hero__star-label {
  font-size: 14px;
}

/* ---------- 通栏氛围图 ---------- */

.page-news .rpt-banner {
  margin: 0;
}

.page-news .rpt-banner__cap {
  margin: 10px 0 0;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.7;
  letter-spacing: 0.04em;
  color: var(--gray);
}

/* ---------- 报告轴容器 ---------- */

.page-news .rpt-stream {
  position: relative;
}

/* 原生单选控件：视觉隐藏但保留键盘可达 */
.page-news .rpt-radio {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: 0;
  padding: 0;
  opacity: 0;
  overflow: hidden;
  clip-path: inset(50%);
  pointer-events: none;
}

.page-news .rpt-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 26px 0 30px;
}

.page-news .rpt-toolbar__hint {
  margin-right: 4px;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.4;
  letter-spacing: 0.08em;
  color: var(--gray);
}

.page-news .rpt-chip {
  display: inline-block;
  padding: 7px 13px;
  font-size: 13px;
  line-height: 1.2;
  color: var(--black);
  background: transparent;
  border: 1px solid var(--line);
  cursor: pointer;
  user-select: none;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 8px), calc(100% - 8px) 100%, 0 100%);
  transition: background var(--step) var(--ease),
              color var(--step) var(--ease),
              border-color var(--step) var(--ease);
}

.page-news .rpt-chip:hover {
  background: var(--orange-soft);
  border-color: var(--orange-soft);
}

/* 选中态 */
.page-news #rptTagAll:checked ~ .rpt-toolbar .rpt-chip[for="rptTagAll"],
.page-news #rptTagNote:checked ~ .rpt-toolbar .rpt-chip[for="rptTagNote"],
.page-news #rptTagMethod:checked ~ .rpt-toolbar .rpt-chip[for="rptTagMethod"],
.page-news #rptTagZone:checked ~ .rpt-toolbar .rpt-chip[for="rptTagZone"],
.page-news #rptTagFile:checked ~ .rpt-toolbar .rpt-chip[for="rptTagFile"],
.page-news #rptTagProd:checked ~ .rpt-toolbar .rpt-chip[for="rptTagProd"],
.page-news #rptTagRead:checked ~ .rpt-toolbar .rpt-chip[for="rptTagRead"] {
  background: var(--ink);
  border-color: var(--ink);
  color: var(--mist);
}

/* 键盘焦点环传递到对应标签 */
.page-news #rptTagAll:focus-visible ~ .rpt-toolbar .rpt-chip[for="rptTagAll"],
.page-news #rptTagNote:focus-visible ~ .rpt-toolbar .rpt-chip[for="rptTagNote"],
.page-news #rptTagMethod:focus-visible ~ .rpt-toolbar .rpt-chip[for="rptTagMethod"],
.page-news #rptTagZone:focus-visible ~ .rpt-toolbar .rpt-chip[for="rptTagZone"],
.page-news #rptTagFile:focus-visible ~ .rpt-toolbar .rpt-chip[for="rptTagFile"],
.page-news #rptTagProd:focus-visible ~ .rpt-toolbar .rpt-chip[for="rptTagProd"],
.page-news #rptTagRead:focus-visible ~ .rpt-toolbar .rpt-chip[for="rptTagRead"] {
  outline: 3px solid var(--blue);
  outline-offset: 2px;
}

/* 纯前端显隐：无脚本也成立 */
.page-news #rptTagNote:checked ~ .rpt-axis .rpt-item:not([data-tag="note"]),
.page-news #rptTagMethod:checked ~ .rpt-axis .rpt-item:not([data-tag="method"]),
.page-news #rptTagZone:checked ~ .rpt-axis .rpt-item:not([data-tag="zone"]),
.page-news #rptTagFile:checked ~ .rpt-axis .rpt-item:not([data-tag="file"]),
.page-news #rptTagProd:checked ~ .rpt-axis .rpt-item:not([data-tag="prod"]),
.page-news #rptTagRead:checked ~ .rpt-axis .rpt-item:not([data-tag="read"]) {
  display: none;
}

/* ---------- 纵向报告轴（移动端：轴靠左） ---------- */

.page-news .rpt-axis {
  position: relative;
  margin: 0;
  padding: 0 0 0 30px;
  list-style: none;
}

.page-news .rpt-axis::before {
  content: "";
  position: absolute;
  left: var(--rpt-line-x);
  top: 14px;
  bottom: 36px;
  width: 2px;
  background-image: repeating-linear-gradient(
    180deg,
    var(--ink) 0 7px,
    transparent 7px 15px
  );
  opacity: 0.5;
}

.page-news .rpt-axis::after {
  content: "";
  position: absolute;
  left: calc(var(--rpt-line-x) - 1px);
  top: 14px;
  width: 4px;
  height: 68px;
  background: linear-gradient(180deg, var(--orange), rgba(255, 122, 30, 0));
  pointer-events: none;
}

.page-news .rpt-item {
  position: relative;
  margin-bottom: 26px;
}

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

/* 轴上刻度 */
.page-news .rpt-item::before {
  content: "";
  position: absolute;
  top: 26px;
  left: -30px;
  width: var(--rpt-tick);
  height: var(--rpt-tick);
  background: var(--paper);
  border: 2px solid var(--gray);
  transform: rotate(45deg);
  z-index: 2;
  transition: background var(--step) var(--ease),
              border-color var(--step) var(--ease);
}

.page-news .rpt-item:hover::before,
.page-news .rpt-item:focus-within::before {
  background: var(--orange);
  border-color: var(--orange);
}

/* ---------- 条目卡片 ---------- */

.page-news .rpt-card {
  position: relative;
  padding: 20px 22px 16px;
  background: var(--mist);
  border: 1px solid var(--line-soft);
  clip-path: polygon(
    0 0,
    100% 0,
    100% calc(100% - var(--cut)),
    calc(100% - var(--cut)) 100%,
    0 100%
  );
  transition: transform var(--step) var(--ease),
              border-color var(--step) var(--ease);
}

.page-news .rpt-item:hover .rpt-card,
.page-news .rpt-item:focus-within .rpt-card {
  transform: translateY(-4px);
  border-color: var(--orange);
}

.page-news .rpt-card__tags {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-bottom: 10px;
}

.page-news .rpt-card__when {
  font-size: 12px;
  line-height: 1.4;
  letter-spacing: 0.04em;
  color: var(--gray);
}

.page-news .rpt-card__title {
  margin: 0 0 8px;
  font-size: 18px;
  line-height: 1.5;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--black);
}

.page-news .rpt-card__lead {
  margin: 0;
  max-width: 34em;
  font-size: 15px;
  line-height: 1.8;
  color: var(--black);
  opacity: 0.84;
}

.page-news .rpt-card__more {
  margin-top: 12px;
  padding-top: 8px;
  border-top: 1px dashed var(--line-soft);
}

.page-news .rpt-card__more summary {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 0;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.6;
  letter-spacing: 0.06em;
  color: var(--ink);
  cursor: pointer;
  list-style: none;
}

.page-news .rpt-card__more summary::-webkit-details-marker {
  display: none;
}

.page-news .rpt-card__more summary::after {
  content: "+";
  font-size: 14px;
  color: var(--orange);
}

.page-news .rpt-card__more[open] summary::after {
  content: "\2212";
}

.page-news .rpt-card__body {
  margin-top: 8px;
  max-width: 34em;
  font-size: 15px;
  line-height: 1.85;
  color: var(--black);
  opacity: 0.9;
}

.page-news .rpt-card__body p {
  margin: 0 0 0.9em;
}

.page-news .rpt-card__body p:last-child {
  margin-bottom: 0;
}

.page-news .rpt-card__fig {
  margin: 4px 0 10px;
}

.page-news .rpt-card__figcap {
  margin: 0 0 12px !important;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.7;
  letter-spacing: 0.03em;
  color: var(--gray);
}

/* ---------- 分类说明 ---------- */

.page-news .rpt-tax {
  display: grid;
  gap: 0;
  margin: 0;
  border-top: 1px solid var(--line);
}

.page-news .rpt-tax__row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
}

.page-news .rpt-tax__term {
  margin: 0;
}

.page-news .rpt-tax__desc {
  margin: 0;
  max-width: 34em;
  font-size: 15px;
  line-height: 1.85;
  color: var(--black);
  opacity: 0.9;
}

/* ---------- 专题聚合 ---------- */

.page-news .rpt-note {
  max-width: 34em;
  margin: 0 0 4px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--black);
  opacity: 0.82;
}

.page-news .rpt-themes {
  display: grid;
  gap: 24px;
  margin-top: 28px;
}

.page-news .rpt-theme {
  padding-left: 18px;
  border-left: 2px solid var(--line);
}

.page-news .rpt-theme h3 {
  margin: 6px 0 12px;
  font-size: 17px;
  line-height: 1.5;
  color: var(--black);
}

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

.page-news .rpt-theme__list a {
  display: block;
  padding-bottom: 8px;
  font-size: 15px;
  line-height: 1.65;
  color: var(--black);
  text-decoration: none;
  border-bottom: 1px dashed var(--line);
  transition: color var(--step) var(--ease),
              border-color var(--step) var(--ease);
}

.page-news .rpt-theme__list a:hover {
  color: var(--ink);
  border-bottom-color: var(--orange);
}

/* ---------- 阅读路径（深色横带） ---------- */

.page-news .rpt-read {
  display: grid;
  gap: 32px;
}

.page-news .rpt-read h2 {
  margin: 10px 0 0;
  color: var(--mist);
}

.page-news .rpt-steps {
  display: grid;
  gap: 22px;
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
}

.page-news .rpt-steps__item {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  gap: 16px;
  align-items: start;
}

.page-news .rpt-steps__num {
  padding-top: 7px;
  font-size: 20px;
  line-height: 1.2;
  color: var(--orange);
  border-top: 2px solid var(--orange);
}

.page-news .rpt-steps__text {
  min-width: 0;
}

.page-news .rpt-steps__text h3 {
  margin: 0 0 6px;
  font-size: 17px;
  line-height: 1.5;
  color: var(--mist);
}

.page-news .rpt-steps__text p {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--mist);
  opacity: 0.82;
}

.page-news .rpt-read__note {
  max-width: 34em;
  margin: 26px 0 0;
  padding-top: 16px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--mist);
  opacity: 0.78;
  border-top: 1px dashed var(--line-invert);
}

.page-news .rpt-read__figure {
  min-width: 0;
}

/* ---------- 线索与更正 ---------- */

.page-news .rpt-feedback {
  display: grid;
  gap: 28px;
}

.page-news .rpt-feedback__main {
  min-width: 0;
}

.page-news .rpt-feedback__main h2 {
  margin: 10px 0 16px;
}

.page-news .rpt-feedback__list {
  display: grid;
  gap: 12px;
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
}

.page-news .rpt-feedback__list li {
  display: grid;
  grid-template-columns: 30px minmax(0, 1fr);
  gap: 12px;
  align-items: baseline;
  font-size: 15px;
  line-height: 1.8;
  color: var(--black);
  opacity: 0.9;
}

.page-news .rpt-feedback__list .u-mono {
  font-size: 12px;
  color: var(--blue);
}

.page-news .rpt-feedback__tail {
  max-width: 34em;
  margin: 22px 0 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--black);
  opacity: 0.86;
}

.page-news .rpt-feedback__side {
  padding: 22px;
  background: var(--paper-2);
  clip-path: polygon(
    0 0,
    100% 0,
    100% calc(100% - var(--cut)),
    calc(100% - var(--cut)) 100%,
    0 100%
  );
  min-width: 0;
}

.page-news .rpt-feedback__mail {
  margin: 10px 0 8px;
  font-size: 16px;
  line-height: 1.5;
  color: var(--black);
  overflow-wrap: anywhere;
  word-break: break-word;
}

.page-news .rpt-feedback__hours {
  margin: 0 0 18px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--black);
  opacity: 0.8;
}

/* ---------- 平板及以上 ---------- */

@media (min-width: 760px) {
  .page-news .rpt-tax__row {
    grid-template-columns: 168px minmax(0, 1fr);
    gap: 28px;
    align-items: start;
    padding: 20px 0;
  }

  .page-news .rpt-themes {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 30px 40px;
  }
}

@media (min-width: 900px) {
  .page-news .rpt-hero {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
    gap: 48px;
  }

  .page-news .rpt-read {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
    gap: 48px;
    align-items: center;
  }

  .page-news .rpt-feedback {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
    gap: 48px;
    align-items: start;
  }
}

/* ---------- 桌面：轴居中，条目左右交错 ---------- */

@media (min-width: 940px) {
  .page-news .rpt-axis {
    padding-left: 0;
  }

  .page-news .rpt-axis::before {
    left: 50%;
    transform: translateX(-1px);
  }

  .page-news .rpt-axis::after {
    left: 50%;
    transform: translateX(-2px);
  }

  .page-news .rpt-item {
    width: calc(50% - var(--rpt-col-gap));
    margin-bottom: 34px;
  }

  .page-news .rpt-item:nth-child(odd) {
    margin-left: 0;
    margin-right: auto;
  }

  .page-news .rpt-item:nth-child(even) {
    margin-left: auto;
    margin-right: 0;
  }

  .page-news .rpt-item::before {
    left: auto;
    top: 28px;
  }

  .page-news .rpt-item:nth-child(odd)::before {
    right: calc(-1 * var(--rpt-col-gap) - 6px);
    left: auto;
  }

  .page-news .rpt-item:nth-child(even)::before {
    left: calc(-1 * var(--rpt-col-gap) - 6px);
    right: auto;
  }

  .page-news .rpt-card {
    padding: 22px 24px 18px;
  }

  .page-news .rpt-card__title {
    font-size: 19px;
  }
}

/* ---------- 降低动效偏好 ---------- */

@media (prefers-reduced-motion: reduce) {
  .page-news .rpt-item:hover .rpt-card,
  .page-news .rpt-item:focus-within .rpt-card {
    transform: none;
  }

  .page-news .rpt-chip,
  .page-news .rpt-card,
  .page-news .rpt-item::before,
  .page-news .rpt-theme__list a {
    transition: color var(--step) linear,
                background-color var(--step) linear,
                border-color var(--step) linear;
  }
}