:root {
  --ink: #151922;
  --muted: #7d899a;
  --soft: #a9b4c5;
  --line: #e5eaf0;
  --paper: #f8fafb;
  --card: #ffffff;
  --green: #00a36c;
  --green-2: #74cbb2;
  --cyan: #22a9c9;
  --amber: #d9912a;
  --shadow: 0 18px 70px rgba(44, 58, 76, 0.08);
  --brand-serif: "Playfair Display", "Noto Serif SC", ui-serif, Georgia, serif;
  --serif: "Songti SC", "STSong", "Noto Serif CJK SC", Georgia, serif;
  --sans: "Avenir Next", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  overflow-x: hidden;
  color: var(--ink);
  font-family: var(--sans);
  background:
    linear-gradient(115deg, rgba(224, 246, 240, 0.45), transparent 28%),
    linear-gradient(245deg, rgba(231, 236, 255, 0.72), transparent 31%),
    var(--paper);
}

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

.shell {
  display: grid;
  grid-template-columns: 264px minmax(0, 1fr);
  min-height: 100vh;
}

.rail {
  position: sticky;
  top: 0;
  height: 100vh;
  overflow: hidden auto;
  border-right: 1px solid #dfe4ea;
  padding: 22px 20px 28px;
  background: rgba(250, 252, 253, 0.86);
  backdrop-filter: blur(18px);
}

.latest-card {
  display: grid;
  gap: 12px;
  min-height: 94px;
  padding: 20px;
  border: 1px solid #cfd6df;
  border-radius: 6px;
  color: #171b23;
  background: rgba(255, 255, 255, 0.54);
}

.latest-card strong {
  font-size: 16px;
  letter-spacing: 0;
}

.latest-card span {
  font-size: 13px;
  color: #8ca0bb;
  font-weight: 700;
  letter-spacing: 1px;
}

.month-label {
  display: none;
}

.issue-list {
  display: grid;
  margin-top: 34px;
}

.month-group {
  border-bottom: 1px solid #dfe4ea;
}

.month-toggle {
  width: 100%;
  min-height: 64px;
  border: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 20px 1fr auto;
  align-items: center;
  gap: 10px;
  background: transparent;
  color: #454d5b;
  cursor: pointer;
  font: inherit;
  text-align: left;
}

.month-toggle .chevron {
  color: #9cb0c9;
  font-size: 18px;
  transform: rotate(90deg);
  transition: transform 160ms ease;
}

.month-toggle strong {
  font-size: 18px;
  font-weight: 900;
}

.month-toggle em {
  color: #9cb0c9;
  font-style: normal;
  font-size: 13px;
  font-weight: 700;
}

.month-group.collapsed .chevron {
  transform: rotate(0deg);
}

.month-issues {
  display: grid;
  gap: 6px;
  padding: 0 0 14px;
}

.month-group.collapsed .month-issues {
  display: none;
}

.issue-link {
  display: grid;
  grid-template-columns: 54px 1fr;
  gap: 12px;
  min-height: 52px;
  align-items: start;
  padding: 9px 10px;
  border-radius: 6px;
  color: #8794a7;
  font-weight: 700;
}

.issue-link:hover,
.issue-link.active {
  color: var(--green);
  background: #dcefeb;
}

.issue-link time {
  color: #9bb0c9;
  white-space: nowrap;
}

.issue-link span {
  overflow: hidden;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  line-height: 1.5;
}

.all-reports {
  display: inline-flex;
  margin-top: 16px;
  color: #8fa2bd;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 1px;
}

.main {
  min-width: 0;
  padding: 98px clamp(28px, 8vw, 180px) 120px;
}

.cover {
  max-width: 1180px;
  margin: 0 auto 130px;
}

.kicker {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 22px;
  margin-bottom: 56px;
  color: #8f9bad;
  font-size: 15px;
  letter-spacing: 8px;
  white-space: nowrap;
}

.kicker span {
  width: 58px;
  height: 2px;
  background: var(--green);
}

.kicker b,
.kicker i {
  font-style: normal;
  font-weight: 600;
}

.cover h1 {
  display: flex;
  align-items: baseline;
  gap: 28px;
  margin: 0 0 40px;
  font-family: var(--serif);
  font-size: clamp(72px, 8.8vw, 132px);
  line-height: 0.9;
  letter-spacing: 0;
  color: #171b23;
  white-space: nowrap;
}

.cover h1 .brand-word {
  font-family: var(--brand-serif);
  font-weight: 800;
  letter-spacing: -1px;
  line-height: 1;
}

.cover h1 .brand-ai {
  color: #1a1d23;
}

.cover h1 .brand-wuyou {
  color: #059669;
}

.dateline {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 28px;
  color: #a1abbb;
  letter-spacing: 6px;
}

.dateline strong {
  color: #3c4450;
  letter-spacing: 2px;
}

.dateline span {
  height: 1px;
  background: linear-gradient(90deg, rgba(0, 163, 108, 0.45), rgba(170, 181, 196, 0.38));
}

.dateline em {
  font-style: normal;
  font-weight: 800;
  white-space: nowrap;
}

.home-view {
  max-width: 1180px;
  margin: 0 auto;
}

.section-block {
  margin: 0 0 118px;
}

.section-head {
  display: grid;
  grid-template-columns: 108px auto 1fr auto;
  align-items: baseline;
  gap: 28px;
  margin-bottom: 58px;
}

.section-head .num {
  color: var(--green);
  font-size: 76px;
  line-height: 1;
  font-weight: 900;
}

.section-head h2 {
  margin: 0;
  font-size: clamp(28px, 3.2vw, 45px);
  letter-spacing: 0;
}

.section-head .en {
  color: #a4afc2;
  letter-spacing: 12px;
  font-size: 15px;
  font-weight: 800;
}

.section-head .count {
  color: var(--green);
  font-size: 24px;
  font-weight: 900;
}

.story-card {
  display: block;
  padding: 34px 44px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.7);
  box-shadow: var(--shadow);
}

.story-card + .story-card {
  margin-top: 28px;
}

.story-card:hover {
  border-color: rgba(0, 163, 108, 0.42);
  transform: translateY(-1px);
}

.story-card h3 {
  margin: 0 0 18px;
  font-size: clamp(22px, 2vw, 30px);
  line-height: 1.36;
}

.meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin-bottom: 22px;
  color: #9aa7ba;
  font-size: 15px;
  font-weight: 700;
}

.badge {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 3px 9px;
  border: 1px solid #dfe5ed;
  border-radius: 4px;
  color: #8d9aab;
  background: rgba(255, 255, 255, 0.64);
  font-size: 13px;
  white-space: nowrap;
}

.story-card p {
  margin: 0;
  color: #3f4b5d;
  font-size: 20px;
  line-height: 1.78;
}

.more-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  margin-top: 26px;
  padding-top: 22px;
  border-top: 1px solid var(--line);
  color: var(--green);
  font-weight: 900;
}

.story-view {
  max-width: 960px;
  margin: -28px auto 0;
  min-width: 0;
}

.back-link {
  display: inline-flex;
  margin-bottom: 34px;
  color: var(--cyan);
  font-weight: 800;
}

.story-header {
  margin-bottom: 28px;
}

.story-header .source {
  margin-bottom: 26px;
  color: #111a27;
  font-weight: 900;
}

.story-header h1 {
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(36px, 5vw, 62px);
  line-height: 1.14;
  letter-spacing: 0;
  overflow-wrap: anywhere;
  word-break: break-word;
}

.story-topline {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 26px 0;
  color: #8290a4;
  font-size: 18px;
  font-weight: 700;
}

.pills {
  position: absolute;
  right: clamp(28px, 10vw, 170px);
  top: 40px;
  display: flex;
  gap: 12px;
}

.pill {
  padding: 4px 12px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 900;
}

.pill.hot {
  color: #c97714;
  background: #fff3d6;
  border: 1px solid #f4d58c;
}

.pill.score {
  color: #0699bd;
  background: #d9f8ff;
  border: 1px solid #90dff0;
}

.source-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 18px;
  color: var(--cyan);
  font-weight: 900;
  overflow-wrap: anywhere;
}

.reason-box,
.summary-box {
  border-radius: 16px;
  padding: 22px 26px;
  margin: 18px 0 24px;
}

.reason-box {
  border: 1px solid #f0d9a7;
  background: rgba(255, 249, 235, 0.66);
}

.summary-box {
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.64);
  box-shadow: var(--shadow);
}

.box-title {
  margin: 0 0 12px;
  color: var(--amber);
  font-size: 16px;
  letter-spacing: 3px;
  font-weight: 900;
}

.summary-box .box-title {
  color: var(--cyan);
}

.reason-box p,
.summary-box p {
  margin: 0;
  color: #536174;
  font-size: 19px;
  line-height: 1.78;
}

.article-body {
  margin-top: 38px;
  border-top: 1px solid var(--line);
  padding-top: 28px;
}

.article-body p {
  margin: 0 0 28px;
  color: #465367;
  font-size: 21px;
  line-height: 1.9;
}

.article-body h2 {
  margin: 42px 0 18px;
  font-size: 27px;
}

.mobile-tabs {
  display: none;
}

.mobile-masthead {
  display: none;
}

@media (max-width: 900px) {
  body {
    background: #fbfcfd;
  }

  .shell {
    display: block;
  }

  .rail {
    display: none;
  }

  .main {
    width: 100%;
    max-width: 100vw;
    padding: 30px 15px 72px;
    overflow-x: hidden;
  }

  .mobile-masthead {
    display: block;
    margin-bottom: 24px;
  }

  .mobile-title-row {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 18px;
    margin-bottom: 14px;
  }

  .mobile-title-row strong {
    color: #0f172a;
    font-family: var(--serif);
    font-size: 24px;
    line-height: 1;
    font-weight: 900;
    letter-spacing: 0.02em;
  }

  .mobile-title-row span {
    color: #607089;
    font-size: 12px;
    font-weight: 700;
  }

  .mobile-date-nav {
    display: flex;
    gap: 8px;
    overflow-x: auto;
    padding-bottom: 2px;
    scrollbar-width: none;
  }

  .mobile-date-nav a {
    flex: 0 0 auto;
    min-width: 54px;
    padding: 9px 15px;
    border: 1px solid #d5dee9;
    border-radius: 999px;
    color: #64748b;
    background: #ffffff;
    text-align: center;
    font-size: 13px;
    font-weight: 800;
    line-height: 1;
  }

  .mobile-date-nav a.active {
    border-color: #0f172a;
    color: #ffffff;
    background: #0f172a;
  }

  .cover {
    margin-bottom: 20px;
  }

  .kicker {
    justify-content: flex-start;
    gap: 0;
    margin-bottom: 12px;
    color: #08758a;
    font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
    font-size: 11px;
    letter-spacing: 5px;
    overflow: hidden;
  }

  .kicker > * {
    display: none;
  }

  .kicker b:last-child {
    display: block;
    font-weight: 900;
  }

  .cover h1 {
    display: none;
  }

  .dateline {
    display: block;
    padding-bottom: 16px;
    border-bottom: 4px double #0f172a;
    letter-spacing: 0;
  }

  .dateline strong {
    color: #111827;
    font-family: var(--serif);
    font-size: 20px;
    font-weight: 900;
    letter-spacing: 0;
  }

  .dateline span,
  .dateline em,
  .mobile-tabs {
    display: none;
  }

  .section-block {
    margin-bottom: 46px;
  }

  .section-head {
    display: grid;
    grid-template-columns: auto auto 1fr;
    align-items: center;
    gap: 10px;
    margin-bottom: 24px;
  }

  .section-head::after {
    content: "";
    height: 1px;
    background: #d6dee9;
  }

  .section-head .num {
    display: inline-grid;
    place-items: center;
    width: 22px;
    height: 22px;
    border-radius: 6px;
    color: transparent;
    background: #0d7891;
    font-size: 0;
    line-height: 1;
  }

  .section-head .num::after {
    content: attr(data-short);
    color: #ffffff;
    font-family: var(--sans);
    font-size: 13px;
    font-weight: 900;
  }

  .section-head h2 {
    font-family: var(--serif);
    font-size: 19px;
    font-weight: 900;
  }

  .section-head .en,
  .section-head .count {
    display: none;
  }

  .story-card {
    display: flex;
    flex-direction: column;
    padding: 0;
    border: 0;
    border-radius: 0;
    background: transparent;
    box-shadow: none;
  }

  .story-card:hover {
    transform: none;
    border-color: transparent;
  }

  .story-card + .story-card {
    margin-top: 34px;
  }

  .story-card h3 {
    margin-bottom: 10px;
    color: #111827;
    font-family: var(--serif);
    font-size: 18px;
    line-height: 1.5;
    font-weight: 900;
    overflow-wrap: anywhere;
  }

  .story-card .meta {
    order: 3;
    gap: 0;
    margin: 14px 0 0;
    color: #64748b;
    font-size: 11px;
    font-weight: 700;
  }

  .story-card .meta::before {
    content: "— ";
    margin-right: 4px;
  }

  .story-card .meta .badge,
  .story-card .meta span:last-child {
    display: none;
  }

  .story-card p {
    order: 2;
    color: #475569;
    font-size: 14px;
    line-height: 1.72;
  }

  .more-row {
    display: none;
  }

  .story-view {
    margin-top: 0;
    width: min(320px, calc(100vw - 48px));
    max-width: min(320px, calc(100vw - 48px));
    margin-left: 0;
    margin-right: auto;
    overflow: hidden;
  }

  .story-header,
  .reason-box,
  .summary-box,
  .article-body {
    width: 100%;
    max-width: 100%;
  }

  .pills {
    position: static;
    margin-bottom: 18px;
  }

  .story-header h1 {
    width: 100%;
    max-width: 100%;
    font-size: 28px;
    line-height: 1.22;
    word-break: break-all;
  }

  .story-topline {
    flex-wrap: wrap;
    font-size: 15px;
  }

  .reason-box,
  .summary-box {
    padding: 18px;
  }

  .article-body p {
    font-size: 18px;
    line-height: 1.84;
  }
}