:root {
  --black: #050505;
  --ink: #111111;
  --graphite: #242424;
  --muted: #6a6a6a;
  --line: #d9d9d9;
  --soft-line: #ededed;
  --paper: #ffffff;
  --panel: #f6f6f6;
  --green: #087a41;
  --red: #b42318;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: Arial, "PingFang SC", "Microsoft YaHei", sans-serif;
  line-height: 1.55;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(255, 255, 255, 0.96);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(12px);
}

.ticker-bar {
  overflow: hidden;
  color: var(--paper);
  background: var(--black);
  border-bottom: 1px solid #333333;
  font-size: 12px;
  letter-spacing: 0;
}

.ticker-track {
  display: flex;
  width: max-content;
  gap: 34px;
  padding: 7px 0;
  animation: ticker 28s linear infinite;
  white-space: nowrap;
}

.ticker-track span {
  display: inline-flex;
  gap: 6px;
  align-items: center;
}

@keyframes ticker {
  from {
    transform: translateX(100vw);
  }
  to {
    transform: translateX(-100%);
  }
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1180px;
  min-height: 70px;
  margin: 0 auto;
  padding: 0 24px;
}

.brand {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 24px;
  letter-spacing: 0;
}

.brand span {
  color: var(--paper);
  background: var(--black);
  padding: 2px 7px;
}

.brand strong {
  font-weight: 800;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
  color: var(--graphite);
  font-size: 14px;
  font-weight: 700;
}

.nav-links a {
  padding: 25px 0;
  border-bottom: 3px solid transparent;
}

.nav-links a:hover,
.nav-links a.active {
  border-bottom-color: var(--black);
}

.menu-button {
  display: none;
  width: 38px;
  height: 38px;
  padding: 8px;
  background: transparent;
  border: 1px solid var(--line);
  border-radius: 4px;
}

.menu-button span {
  display: block;
  height: 2px;
  margin: 5px 0;
  background: var(--black);
}

.section {
  max-width: 1180px;
  margin: 0 auto;
  padding: 78px 24px;
  border-bottom: 1px solid var(--soft-line);
}

.hero {
  padding-top: 54px;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.65fr) minmax(300px, 0.85fr);
  gap: 38px;
  align-items: stretch;
}

.lead-story {
  min-height: 520px;
  padding: 42px 0;
  border-top: 8px solid var(--black);
  border-bottom: 1px solid var(--black);
}

.section-kicker {
  margin: 0 0 12px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
}

h1,
h2,
h3,
h4,
p {
  margin-top: 0;
}

h1 {
  max-width: 820px;
  margin-bottom: 22px;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(46px, 7vw, 92px);
  line-height: 0.95;
  letter-spacing: 0;
}

h2 {
  font-family: Georgia, "Times New Roman", serif;
  font-size: 42px;
  line-height: 1.05;
  letter-spacing: 0;
}

.lead-story p:not(.section-kicker) {
  max-width: 720px;
  color: var(--graphite);
  font-size: 19px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 34px;
}

.primary-button,
.secondary-button {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 18px;
  border: 1px solid var(--black);
  border-radius: 4px;
  font-size: 14px;
  font-weight: 800;
}

.primary-button {
  color: var(--paper);
  background: var(--black);
}

.secondary-button {
  background: var(--paper);
}

.market-board {
  display: flex;
  flex-direction: column;
  align-self: stretch;
  padding: 0;
  background: var(--panel);
  border: 1px solid var(--black);
}

.board-head {
  display: flex;
  justify-content: space-between;
  padding: 18px;
  color: var(--paper);
  background: var(--black);
  font-size: 13px;
  font-weight: 800;
}

.quote-row {
  display: grid;
  grid-template-columns: 1fr auto auto;
  gap: 14px;
  align-items: center;
  padding: 22px 18px;
  border-bottom: 1px solid var(--line);
}

.quote-row:last-child {
  border-bottom: 0;
}

.quote-row strong {
  font-family: Georgia, "Times New Roman", serif;
  font-size: 22px;
}

.up {
  color: var(--green);
  font-style: normal;
}

.down {
  color: var(--red);
  font-style: normal;
}

.section-title {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 30px;
  border-bottom: 3px solid var(--black);
}

.story-grid {
  display: grid;
  grid-template-columns: 1.35fr 1fr 1fr;
  gap: 18px;
}

.story-card {
  min-height: 260px;
  padding: 22px;
  background: var(--paper);
  border: 1px solid var(--line);
}

.story-card-large {
  background: var(--black);
  color: var(--paper);
}

.tag {
  display: inline-block;
  margin-bottom: 18px;
  padding: 3px 7px;
  color: var(--paper);
  background: var(--graphite);
  font-size: 12px;
  font-weight: 800;
}

.story-card-large .tag {
  color: var(--black);
  background: var(--paper);
}

.story-card h3 {
  margin-bottom: 14px;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 25px;
  line-height: 1.12;
}

.story-card p {
  color: inherit;
}

.story-card a {
  display: inline-block;
  margin-top: 16px;
  border-bottom: 1px solid currentColor;
  font-weight: 800;
}

.brief-panel {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(260px, 0.6fr);
  border: 1px solid var(--black);
}

.brief-main {
  padding: 34px;
}

.brief-main time {
  display: block;
  margin-bottom: 16px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 800;
}

.brief-main h3 {
  max-width: 760px;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 36px;
  line-height: 1.1;
}

.brief-main ul {
  padding-left: 20px;
  color: var(--graphite);
}

.brief-side {
  padding: 34px;
  background: var(--panel);
  border-left: 1px solid var(--black);
}

.brief-side h4 {
  font-size: 16px;
  text-transform: uppercase;
}

.brief-side ol {
  display: grid;
  gap: 14px;
  padding-left: 20px;
  font-weight: 800;
}

.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--black);
}

table {
  width: 100%;
  min-width: 720px;
  border-collapse: collapse;
  font-size: 15px;
}

th,
td {
  padding: 18px;
  text-align: left;
  border-bottom: 1px solid var(--line);
}

th {
  color: var(--paper);
  background: var(--black);
  font-size: 12px;
  text-transform: uppercase;
}

td:first-child {
  font-weight: 900;
}

.stock-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.stock-grid article {
  display: grid;
  gap: 10px;
  min-height: 220px;
  padding: 22px;
  border: 1px solid var(--line);
  background: var(--panel);
}

.stock-grid span {
  color: var(--muted);
  font-size: 12px;
  font-weight: 900;
}

.stock-grid strong {
  font-family: Georgia, "Times New Roman", serif;
  font-size: 36px;
  line-height: 1;
}

.stock-grid p {
  margin-bottom: 0;
  color: var(--graphite);
  font-size: 14px;
}

.about-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 40px;
}

.about-grid h3 {
  font-family: Georgia, "Times New Roman", serif;
  font-size: 46px;
}

.about-grid p {
  color: var(--graphite);
  font-size: 17px;
}

.principles {
  display: grid;
  gap: 0;
  border-top: 1px solid var(--black);
}

.principles div {
  display: grid;
  grid-template-columns: 56px 100px 1fr;
  gap: 18px;
  align-items: start;
  padding: 22px 0;
  border-bottom: 1px solid var(--line);
}

.principles strong {
  font-family: Georgia, "Times New Roman", serif;
  font-size: 28px;
}

.principles span {
  font-weight: 900;
}

.principles p {
  margin-bottom: 0;
  font-size: 15px;
}

.footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  max-width: 1180px;
  margin: 0 auto;
  padding: 30px 24px 42px;
  color: var(--muted);
  font-size: 13px;
}

.footer div {
  display: grid;
  color: var(--black);
}

.footer strong {
  font-family: Georgia, "Times New Roman", serif;
  font-size: 20px;
}

.footer a {
  color: var(--black);
  font-weight: 800;
}

@media (max-width: 900px) {
  .menu-button {
    display: block;
  }

  .nav {
    position: relative;
  }

  .nav-links {
    position: absolute;
    top: 70px;
    right: 24px;
    left: 24px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: var(--paper);
    border: 1px solid var(--black);
  }

  .nav-links.open {
    display: flex;
  }

  .nav-links a {
    padding: 16px 18px;
    border-bottom: 1px solid var(--line);
  }

  .hero-grid,
  .brief-panel,
  .about-grid {
    grid-template-columns: 1fr;
  }

  .lead-story {
    min-height: auto;
  }

  .brief-side {
    border-top: 1px solid var(--black);
    border-left: 0;
  }

  .story-grid,
  .stock-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 640px) {
  .nav {
    padding: 0 16px;
  }

  .brand {
    font-size: 20px;
  }

  .section {
    padding: 54px 16px;
  }

  .hero {
    padding-top: 36px;
  }

  h1 {
    font-size: 46px;
  }

  h2 {
    font-size: 34px;
  }

  .section-title {
    display: block;
  }

  .story-grid,
  .stock-grid {
    grid-template-columns: 1fr;
  }

  .brief-main,
  .brief-side {
    padding: 24px;
  }

  .brief-main h3 {
    font-size: 29px;
  }

  .principles div {
    grid-template-columns: 1fr;
    gap: 6px;
  }

  .footer {
    display: grid;
  }
}