:root {
  color-scheme: light;
  --bg: #ffffff;
  --ink: #050505;
  --muted: #9a9a9a;
  --soft: #efefef;
  --line: #d8d8d8;
  --page-x: 34px;
  --col-no: 74px;
  --col-sector: 260px;
  --col-title: 320px;
  --col-date: 68px;
  --col-gap: 36px;
}

@font-face {
  font-family: "Leeeaf Hei";
  src: url("/assets/fonts/LeeeafHei-Regular.ttf") format("truetype");
  font-weight: 400 800;
  font-style: normal;
  font-display: swap;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  background: var(--bg);
  font-family: "Leeeaf Hei", Arial, "Helvetica Neue", "PingFang SC", "Microsoft YaHei", sans-serif;
  line-height: 1.35;
  letter-spacing: 0;
}

a {
  color: inherit;
  text-decoration: none;
}

a:hover {
  color: var(--muted);
}

.index-body {
  font-size: 16px;
  font-weight: 700;
}

.index-header {
  position: fixed;
  z-index: 20;
  top: 0;
  left: 0;
  right: 0;
  display: grid;
  grid-template-columns: var(--col-no) var(--col-sector) var(--col-title) var(--col-date) minmax(160px, 1fr);
  align-items: start;
  column-gap: var(--col-gap);
  padding: 28px var(--page-x) 18px;
  background: rgba(255, 255, 255, 0.96);
}

.brand-letter {
  position: relative;
  display: inline-block;
  width: fit-content;
  white-space: nowrap;
  font-weight: 700;
}

.brand-a {
  grid-column: 1;
}

.brand-l {
  grid-column: 2;
}

.brand-letter::after {
  content: attr(data-full);
  position: absolute;
  left: 0;
  top: 0;
  opacity: 0;
  pointer-events: none;
  transition: opacity 120ms ease;
}

.brand-letter:hover {
  color: transparent;
}

.brand-letter:hover::after {
  color: var(--ink);
  opacity: 1;
}

.top-nav {
  display: contents;
  color: var(--muted);
  font-weight: 400;
  white-space: nowrap;
}

.filter-pair {
  grid-column: 3;
  display: flex;
  gap: 5px;
}

.filter-tab {
  margin: 0;
  padding: 0;
  color: var(--muted);
  background: transparent;
  border: 0;
  cursor: pointer;
  font: inherit;
  font-weight: 400;
  text-align: left;
}

.filter-tab.is-active,
.filter-tab:hover {
  color: var(--ink);
}

.top-nav > a[href="#about"] {
  grid-column: 4;
}

.top-nav > a[href^="mailto"] {
  grid-column: 5;
  justify-self: end;
}

.index-layout {
  display: grid;
  grid-template-columns: var(--col-no) var(--col-sector) var(--col-title) var(--col-date) minmax(320px, 1fr);
  column-gap: var(--col-gap);
  padding: 138px var(--page-x) 40px;
}

.record-index {
  grid-column: 1 / 5;
  min-width: 0;
}

.table-title,
.record-row {
  display: grid;
  grid-template-columns: var(--col-no) var(--col-sector) var(--col-title) var(--col-date);
  column-gap: var(--col-gap);
  align-items: baseline;
}

.table-title {
  margin-bottom: 28px;
}

.table-title span {
  position: relative;
  width: fit-content;
}

.table-title span::after {
  content: attr(data-full);
  position: absolute;
  left: 0;
  top: 0;
  opacity: 0;
  pointer-events: none;
  transition: opacity 120ms ease;
}

.table-title span:hover {
  color: transparent;
}

.table-title span:hover::after {
  color: var(--ink);
  opacity: 1;
}

.record-list {
  display: grid;
  gap: 0;
}

.record-row {
  position: relative;
  width: 100%;
  margin: 0;
  padding: 0;
  color: var(--ink);
  background: transparent;
  border: 0;
  cursor: pointer;
  font: inherit;
  text-align: left;
  transition: color 120ms ease;
}

.record-row::after {
  content: "";
  position: absolute;
  inset: -2px -14px -2px -14px;
  border: 1px solid #ff5a1f;
  opacity: 0;
  pointer-events: none;
  transition: opacity 120ms ease;
}

.record-row span {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.record-list.is-hovering .record-row {
  color: var(--muted);
}

.record-list.is-hovering .record-row:hover,
.record-list.is-hovering .record-row.is-hovered,
.record-row.is-selected {
  color: var(--ink);
}

.record-row:hover::after,
.record-row.is-hovered::after {
  opacity: 1;
}

.record-detail {
  grid-column: 5;
  position: sticky;
  top: 28px;
  align-self: start;
  min-height: 420px;
  padding-top: 84px;
  font-weight: 400;
}

.detail-kicker,
.detail-meta {
  color: var(--muted);
  font-size: 14px;
  font-weight: 400;
}

.detail-kicker {
  margin: 0 0 16px;
}

.record-detail h1 {
  margin: 0 0 22px;
  font-size: 24px;
  line-height: 1.15;
  font-weight: 700;
}

.detail-lead {
  margin: 0 0 24px;
  max-width: 620px;
  font-size: 14px;
  line-height: 1.65;
}

.detail-meta {
  display: flex;
  gap: 22px;
  margin-bottom: 26px;
}

.detail-points {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 14px;
  font-weight: 400;
  line-height: 1.55;
}

.detail-points li::before {
  content: "— ";
  color: var(--muted);
}

.index-about {
  max-width: 760px;
  padding: 16px 31px 52px;
  color: var(--muted);
  font-size: 14px;
  font-weight: 400;
  line-height: 1.65;
}

.index-about p {
  margin: 0;
}

.site-footer {
  margin: 0 31px;
  padding: 20px 0 34px;
  color: var(--muted);
  border-top: 1px solid var(--soft);
  font-size: 14px;
  font-weight: 400;
  text-align: center;
}

.site-footer p {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px 18px;
  margin: 0 0 8px;
}

.page {
  width: min(880px, calc(100% - 40px));
  margin: 0 auto;
  padding: 80px 0 52px;
  font-size: 18px;
  font-weight: 400;
  line-height: 1.75;
}

.text-page h1 {
  margin: 0 0 24px;
  font-size: 48px;
  line-height: 1.1;
}

.text-page h2 {
  margin: 36px 0 12px;
  font-size: 24px;
}

.text-page p {
  margin: 0 0 16px;
  color: #4f4f4f;
}

.back-link {
  display: inline-block;
  margin-bottom: 32px;
  color: var(--muted);
}

@media (max-width: 1180px) {
  .index-header {
    grid-template-columns: var(--col-no) var(--col-sector) var(--col-title) var(--col-date);
  }

  .top-nav > a[href^="mailto"] {
    display: none;
  }

  .index-layout {
    grid-template-columns: var(--col-no) var(--col-sector) var(--col-title) var(--col-date);
    row-gap: 26px;
  }

  .record-detail {
    grid-column: 1 / 5;
    position: static;
    min-height: 0;
    padding-top: 22px;
    border-top: 1px solid var(--soft);
  }
}

@media (max-width: 760px) {
  :root {
    --page-x: 18px;
    --col-no: 42px;
    --col-sector: 90px;
    --col-title: minmax(132px, 1fr);
    --col-date: 42px;
    --col-gap: 12px;
  }

  .index-body {
    font-size: 15px;
  }

  .index-header {
    grid-template-columns: var(--col-no) var(--col-sector) var(--col-title) var(--col-date);
    padding: 22px var(--page-x) 18px;
  }

  .filter-pair {
    grid-column: 3;
  }

  .top-nav > a[href="#about"] {
    grid-column: 4;
  }

  .top-nav > a[href^="mailto"] {
    display: none;
  }

  .index-layout {
    grid-template-columns: var(--col-no) var(--col-sector) var(--col-title) var(--col-date);
    padding: 118px var(--page-x) 34px;
  }

  .table-title,
  .record-row {
    grid-template-columns: var(--col-no) var(--col-sector) var(--col-title) var(--col-date);
    column-gap: var(--col-gap);
  }

  .table-title {
    margin-bottom: 20px;
  }

  .record-detail h1 {
    font-size: 24px;
  }

  .detail-lead {
    font-size: 15px;
  }

  .index-about {
    padding: 4px 18px 34px;
    font-size: 16px;
  }

  .site-footer {
    margin: 0 18px;
  }

  .page {
    width: min(100% - 32px, 880px);
    padding-top: 48px;
  }
}