/* ==========================================================================
   ATFX 资讯站 · 全站样式
   设计规范：--biz- 变量前缀 / biz- 类名 / 白色主题 / Plus Jakarta Sans
   移动端断点：1199 / 991 / 767 / 519
   ========================================================================== */

:root {
  --biz-brand: #A32D2D;
  --biz-brand-dark: #8A2626;
  --biz-brand-soft: #FCEBEB;
  --biz-brand-line: #F0C9C9;

  --biz-up: #C62828;
  --biz-down: #0F7B54;

  --biz-text: #1A1A1A;
  --biz-text-2: #5F5E5A;
  --biz-text-3: #8A8880;

  --biz-bg: #FFFFFF;
  --biz-bg-2: #F7F6F2;
  --biz-bg-3: #F1EFE8;

  --biz-line: #E8E6E0;
  --biz-line-2: #D8D5CD;

  --biz-radius-sm: 6px;
  --biz-radius: 10px;
  --biz-radius-lg: 14px;

  --biz-container: 1200px;
  --biz-header-h: 64px;

  --biz-font: "Plus Jakarta Sans", -apple-system, BlinkMacSystemFont, "Segoe UI",
    system-ui, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}

*,
*::before,
*::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--biz-bg);
  color: var(--biz-text);
  font-family: var(--biz-font);
  font-size: 15px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
ul, ol { margin: 0; padding: 0; list-style: none; }
h1, h2, h3, h4, p { margin: 0; }

:focus-visible {
  outline: 2px solid var(--biz-brand);
  outline-offset: 2px;
  border-radius: 3px;
}

.biz-sr {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

.biz-container {
  width: 100%;
  max-width: var(--biz-container);
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------------------------------------------------------------- 顶部信息条 */

.biz-topbar {
  border-bottom: 1px solid var(--biz-line);
  background: var(--biz-bg-3);
  font-size: 12px;
  color: var(--biz-text-2);
}

.biz-topbar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 34px;
}

.biz-topbar__lang {
  display: flex;
  align-items: center;
  gap: 14px;
}

.biz-topbar__lang a { color: var(--biz-text-3); }
.biz-topbar__lang a:hover { color: var(--biz-brand); }
.biz-topbar__lang .is-active { color: var(--biz-text); }

/* ------------------------------------------------------------------ 主导航 */

.biz-header {
  position: sticky;
  top: 0;
  z-index: 60;
  background: var(--biz-bg);
  border-bottom: 1px solid var(--biz-line);
}

.biz-header__inner {
  display: flex;
  align-items: center;
  gap: 28px;
  min-height: var(--biz-header-h);
}

.biz-logo {
  display: flex;
  align-items: center;
  gap: 9px;
  flex: none;
}

.biz-logo__mark {
  width: 26px;
  height: 26px;
  border-radius: 7px;
  background: var(--biz-brand);
  display: grid;
  place-items: center;
  flex: none;
}

.biz-logo__mark svg { width: 14px; height: 14px; display: block; }

.biz-logo__text {
  font-size: 19px;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.biz-nav { flex: 1; min-width: 0; }

.biz-nav__list {
  display: flex;
  align-items: center;
  gap: 26px;
  height: var(--biz-header-h);
}

.biz-nav__link {
  position: relative;
  display: flex;
  align-items: center;
  height: var(--biz-header-h);
  font-size: 15px;
  font-weight: 500;
  color: var(--biz-text-2);
  white-space: nowrap;
  transition: color .15s ease;
}

.biz-nav__link::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: -1px;
  height: 2px;
  background: var(--biz-brand);
  transform: scaleX(0);
  transition: transform .2s ease;
}

.biz-nav__link:hover { color: var(--biz-text); }
.biz-nav__link:hover::after,
.biz-nav__link.is-active::after { transform: scaleX(1); }
.biz-nav__link.is-active { color: var(--biz-brand); }

.biz-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex: none;
}

.biz-search {
  position: relative;
  display: flex;
  align-items: center;
}

.biz-search__icon {
  position: absolute;
  left: 11px;
  width: 15px; height: 15px;
  color: var(--biz-text-3);
  pointer-events: none;
}

.biz-search__input {
  width: 190px;
  height: 36px;
  padding: 0 14px 0 33px;
  border: 1px solid var(--biz-line);
  border-radius: 999px;
  background: var(--biz-bg-2);
  font: inherit;
  font-size: 13px;
  color: var(--biz-text);
  transition: border-color .15s ease, background-color .15s ease, width .2s ease;
}

.biz-search__input::placeholder { color: var(--biz-text-3); }
.biz-search__input:focus {
  width: 220px;
  outline: none;
  border-color: var(--biz-line-2);
  background: var(--biz-bg);
}

.biz-burger {
  display: none;
  width: 40px; height: 40px;
  border-radius: var(--biz-radius-sm);
  place-items: center;
}

.biz-burger__box {
  display: block;
  width: 20px;
  height: 14px;
  position: relative;
}

.biz-burger__box i {
  position: absolute;
  left: 0;
  width: 100%;
  height: 2px;
  border-radius: 2px;
  background: var(--biz-text);
  transition: transform .22s ease, opacity .16s ease;
}

.biz-burger__box i:nth-child(1) { top: 0; }
.biz-burger__box i:nth-child(2) { top: 6px; }
.biz-burger__box i:nth-child(3) { top: 12px; }

.biz-burger[aria-expanded="true"] i:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.biz-burger[aria-expanded="true"] i:nth-child(2) { opacity: 0; }
.biz-burger[aria-expanded="true"] i:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

/* --------------------------------------------------------------- 抽屉菜单 */

.biz-drawer {
  position: fixed;
  inset: 0;
  z-index: 90;
  display: none;
}

.biz-drawer.is-open { display: block; }

.biz-drawer__mask {
  position: absolute;
  inset: 0;
  background: rgba(26, 26, 26, .38);
}

.biz-drawer__panel {
  position: absolute;
  top: 0; right: 0; bottom: 0;
  width: min(320px, 82vw);
  background: var(--biz-bg);
  padding: 20px 0;
  overflow-y: auto;
  animation: biz-slide-in .24s ease;
}

@keyframes biz-slide-in {
  from { transform: translateX(100%); }
  to { transform: translateX(0); }
}

.biz-drawer__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 20px 16px;
  border-bottom: 1px solid var(--biz-line);
}

.biz-drawer__title { font-size: 15px; font-weight: 600; }

.biz-drawer__close {
  width: 34px; height: 34px;
  display: grid;
  place-items: center;
  border-radius: var(--biz-radius-sm);
  color: var(--biz-text-2);
}

.biz-drawer__close svg { width: 17px; height: 17px; }

.biz-drawer__nav { padding: 8px 0; }

.biz-drawer__nav a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 13px 20px;
  font-size: 15px;
  font-weight: 500;
  color: var(--biz-text-2);
  border-bottom: 1px solid var(--biz-line);
}

.biz-drawer__nav a.is-active { color: var(--biz-brand); }
.biz-drawer__nav a:last-child { border-bottom: 0; }

.biz-drawer__search { padding: 16px 20px 4px; }
.biz-drawer__search .biz-search__input { width: 100%; }
.biz-drawer__search .biz-search__icon { left: 12px; }

/* --------------------------------------------------------------- 品牌横幅 */

.biz-ad {
  margin-bottom: 48px;
}

.biz-ad picture { display: block; }

.biz-ad img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: var(--biz-radius-lg);
  background: var(--biz-bg-3);
}

/* ------------------------------------------------------------------- 快讯条 */

.biz-ticker {
  border-bottom: 1px solid var(--biz-line);
  background: var(--biz-brand-soft);
}

.biz-ticker__inner {
  display: flex;
  align-items: center;
  gap: 14px;
  min-height: 42px;
}

.biz-ticker__label {
  flex: none;
  padding: 3px 9px;
  border-radius: var(--biz-radius-sm);
  background: var(--biz-brand);
  color: #fff;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .04em;
}

.biz-ticker__viewport {
  flex: 1;
  min-width: 0;
  overflow: hidden;
}

.biz-ticker__track {
  display: flex;
  align-items: center;
  gap: 44px;
  white-space: nowrap;
  animation: biz-marquee 48s linear infinite;
}

.biz-ticker:hover .biz-ticker__track { animation-play-state: paused; }

@keyframes biz-marquee {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

.biz-ticker__item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: #791F1F;
}

.biz-ticker__item time { color: #A86060; font-size: 12px; }

.biz-ticker__time {
  flex: none;
  font-size: 12px;
  color: #A86060;
  font-variant-numeric: tabular-nums;
}

/* ------------------------------------------------------------------ 主体 */

.biz-main { padding: 40px 0 64px; }

.biz-section { margin-bottom: 48px; }
.biz-section:last-child { margin-bottom: 0; }

.biz-section__head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 16px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--biz-line);
  margin-bottom: 24px;
}

.biz-section__title {
  font-size: 21px;
  font-weight: 700;
  letter-spacing: -0.015em;
}

.biz-section__more {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 13px;
  color: var(--biz-text-3);
  transition: color .15s ease;
}

.biz-section__more:hover { color: var(--biz-brand); }
.biz-section__more svg { width: 12px; height: 12px; }

.biz-grid {
  display: grid;
  gap: 20px;
}

.biz-grid--4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.biz-grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.biz-grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }

/* ------------------------------------------------------------ 头条 + 榜单 */

.biz-hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 300px;
  gap: 28px;
  margin-bottom: 48px;
}

.biz-hero__lead {
  display: flex;
  flex-direction: column;
}

.biz-hero__media {
  position: relative;
  display: block;
  border-radius: var(--biz-radius-lg);
  overflow: hidden;
  background: var(--biz-bg-3);
  margin-bottom: 18px;
}

.biz-hero__media img {
  width: 100%;
  aspect-ratio: 16 / 8;
  object-fit: cover;
  transition: transform .5s ease;
}

.biz-hero__lead:hover .biz-hero__media img { transform: scale(1.025); }

.biz-hero__title {
  font-size: 25px;
  font-weight: 700;
  line-height: 1.34;
  letter-spacing: -0.02em;
  margin-bottom: 12px;
}

.biz-hero__title a { transition: color .15s ease; }
.biz-hero__title a:hover { color: var(--biz-brand); }

.biz-hero__excerpt {
  font-size: 14px;
  color: var(--biz-text-2);
  line-height: 1.72;
  margin-bottom: 16px;
}

.biz-rank {
  background: var(--biz-bg-2);
  border-radius: var(--biz-radius-lg);
  padding: 20px 20px 8px;
  align-self: start;
}

.biz-rank__head {
  display: flex;
  align-items: center;
  gap: 8px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--biz-line);
  margin-bottom: 6px;
}

.biz-rank__head svg { width: 15px; height: 15px; color: var(--biz-brand); }

.biz-rank__title { font-size: 15px; font-weight: 600; }

.biz-rank__item {
  display: flex;
  gap: 12px;
  padding: 11px 0;
  border-bottom: 1px solid var(--biz-line);
}

.biz-rank__item:last-child { border-bottom: 0; }

.biz-rank__num {
  flex: none;
  width: 20px;
  font-size: 14px;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  color: var(--biz-text-3);
  line-height: 1.5;
}

.biz-rank__item:nth-child(-n+3) .biz-rank__num { color: var(--biz-brand); }

.biz-rank__text {
  font-size: 13.5px;
  line-height: 1.55;
  color: var(--biz-text-2);
  transition: color .15s ease;
}

.biz-rank__item:hover .biz-rank__text { color: var(--biz-brand); }

/* ------------------------------------------------------------------ 卡片 */

.biz-card {
  display: flex;
  flex-direction: column;
  background: var(--biz-bg);
  transition: transform .18s ease;
}

.biz-card:hover { transform: translateY(-2px); }

.biz-card__media {
  position: relative;
  display: block;
  border-radius: var(--biz-radius);
  overflow: hidden;
  background: var(--biz-bg-3);
  margin-bottom: 13px;
}

.biz-card__media img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  transition: transform .45s ease;
}

.biz-card:hover .biz-card__media img { transform: scale(1.04); }

.biz-card__tag {
  position: absolute;
  top: 10px;
  left: 10px;
  padding: 3px 9px;
  border-radius: var(--biz-radius-sm);
  background: rgba(255, 255, 255, .94);
  color: var(--biz-brand);
  font-size: 11px;
  font-weight: 600;
}

.biz-card__title {
  font-size: 15px;
  font-weight: 600;
  line-height: 1.5;
  margin-bottom: 8px;
}

.biz-card__title a { transition: color .15s ease; }
.biz-card__title a:hover { color: var(--biz-brand); }

.biz-card__excerpt {
  font-size: 13px;
  color: var(--biz-text-2);
  line-height: 1.65;
  margin-bottom: 10px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.biz-card__meta {
  margin-top: auto;
  font-size: 12px;
  color: var(--biz-text-3);
  display: flex;
  align-items: center;
  gap: 10px;
}

.biz-card--wide { flex-direction: row; gap: 18px; align-items: flex-start; }
.biz-card--wide .biz-card__media { flex: none; width: 220px; margin-bottom: 0; }
.biz-card--wide .biz-card__media img { aspect-ratio: 4 / 3; }
.biz-card--wide .biz-card__body { flex: 1; min-width: 0; }

/* ------------------------------------------------------------ 图文混排块 */

.biz-split {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 28px;
}

.biz-feature__media {
  position: relative;
  display: block;
  border-radius: var(--biz-radius-lg);
  overflow: hidden;
  background: var(--biz-bg-3);
  margin-bottom: 16px;
}

.biz-feature__media img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.biz-feature__title {
  font-size: 19px;
  font-weight: 700;
  line-height: 1.42;
  letter-spacing: -0.015em;
  margin-bottom: 10px;
}

.biz-feature__title a:hover { color: var(--biz-brand); }

.biz-feature__excerpt {
  font-size: 13.5px;
  color: var(--biz-text-2);
  line-height: 1.7;
  margin-bottom: 12px;
}

/* ------------------------------------------------------------ 小图列表 */

.biz-list { display: flex; flex-direction: column; }

.biz-list__item {
  display: flex;
  gap: 14px;
  padding: 14px 0;
  border-bottom: 1px solid var(--biz-line);
}

.biz-list__item:first-child { padding-top: 0; }
.biz-list__item:last-child { border-bottom: 0; padding-bottom: 0; }

.biz-list__thumb {
  flex: none;
  width: 104px;
  border-radius: var(--biz-radius-sm);
  overflow: hidden;
  background: var(--biz-bg-3);
}

.biz-list__thumb img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; }

.biz-list__content { min-width: 0; }

.biz-list__title {
  font-size: 14.5px;
  font-weight: 600;
  line-height: 1.5;
  margin-bottom: 6px;
}

.biz-list__title a:hover { color: var(--biz-brand); }

.biz-list__meta {
  font-size: 12px;
  color: var(--biz-text-3);
  display: flex;
  align-items: center;
  gap: 9px;
}

/* --------------------------------------------------------------- 市场数据 */

.biz-note {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 14px;
  margin-top: 18px;
  font-size: 12px;
  color: var(--biz-text-3);
}

.biz-note__dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--biz-down);
  flex: none;
}

.biz-note__dot.is-stale { background: var(--biz-text-3); }

.biz-badge {
  display: inline-flex;
  align-items: center;
  padding: 2px 8px;
  border-radius: 999px;
  background: var(--biz-brand-soft);
  color: var(--biz-brand);
  font-size: 11px;
  font-weight: 500;
}

/* ------------------------------------------------------------------ 专题 */

.biz-topic {
  position: relative;
  display: block;
  border-radius: var(--biz-radius-lg);
  overflow: hidden;
  background: var(--biz-bg-3);
  min-height: 200px;
}

.biz-topic img {
  width: 100%;
  height: 100%;
  min-height: 200px;
  object-fit: cover;
  position: absolute;
  inset: 0;
  transition: transform .5s ease;
}

.biz-topic:hover img { transform: scale(1.04); }

.biz-topic__body {
  position: relative;
  z-index: 2;
  padding: 22px;
  min-height: 200px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  background: linear-gradient(to top, rgba(20, 12, 12, .82) 12%, rgba(20, 12, 12, .28) 55%, rgba(20, 12, 12, .06) 100%);
  color: #fff;
}

.biz-topic__kicker {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .08em;
  color: rgba(255, 255, 255, .72);
  margin-bottom: 8px;
}

.biz-topic__title {
  font-size: 17px;
  font-weight: 700;
  line-height: 1.45;
  margin-bottom: 8px;
}

.biz-topic__desc {
  font-size: 12.5px;
  color: rgba(255, 255, 255, .74);
  line-height: 1.6;
}

/* ------------------------------------------------------------------ 页脚 */

.biz-footer {
  background: var(--biz-bg-3);
  border-top: 1px solid var(--biz-line);
  padding: 44px 0 0;
}

.biz-footer__main {
  display: grid;
  grid-template-columns: 1.4fr repeat(3, 1fr);
  gap: 32px;
  padding-bottom: 36px;
}

.biz-footer__brand { max-width: 300px; }

.biz-footer__desc {
  margin-top: 14px;
  font-size: 13px;
  color: var(--biz-text-2);
  line-height: 1.7;
}

.biz-footer__col-title {
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 14px;
}

.biz-footer__links li { margin-bottom: 10px; }

.biz-footer__links a {
  font-size: 13px;
  color: var(--biz-text-2);
  transition: color .15s ease;
}

.biz-footer__links a:hover { color: var(--biz-brand); }

.biz-footer__bottom {
  border-top: 1px solid var(--biz-line);
  padding: 20px 0 28px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  font-size: 12px;
  color: var(--biz-text-3);
}

.biz-footer__disclaimer {
  padding: 16px 0;
  border-top: 1px solid var(--biz-line);
  font-size: 12px;
  line-height: 1.75;
  color: var(--biz-text-3);
}

/* ----------------------------------------------------------- 移动端标签栏 */

.biz-tabbar {
  display: none;
  position: fixed;
  left: 0; right: 0; bottom: 0;
  z-index: 70;
  background: var(--biz-bg);
  border-top: 1px solid var(--biz-line);
  padding-bottom: env(safe-area-inset-bottom, 0);
}

.biz-tabbar__item {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3px;
  padding: 9px 0 8px;
  font-size: 11px;
  color: var(--biz-text-3);
}

.biz-tabbar__item svg { width: 20px; height: 20px; }
.biz-tabbar__item.is-active { color: var(--biz-brand); }

/* ============================================================ 文章内页 */

.biz-crumb {
  padding: 20px 0 0;
  font-size: 12.5px;
  color: var(--biz-text-3);
  display: flex;
  align-items: center;
  gap: 7px;
  flex-wrap: wrap;
}

.biz-crumb a { transition: color .15s ease; }
.biz-crumb a:hover { color: var(--biz-brand); }
.biz-crumb span { color: var(--biz-line-2); }

.biz-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 300px;
  gap: 44px;
  padding: 26px 0 64px;
}

.biz-article__tag {
  display: inline-flex;
  align-items: center;
  padding: 4px 11px;
  border-radius: 999px;
  background: var(--biz-brand-soft);
  color: var(--biz-brand);
  font-size: 12px;
  font-weight: 600;
  margin-bottom: 16px;
}

.biz-article__title {
  font-size: 32px;
  font-weight: 700;
  line-height: 1.34;
  letter-spacing: -0.025em;
  margin-bottom: 18px;
}

.biz-article__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 16px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--biz-line);
  margin-bottom: 24px;
  font-size: 12.5px;
  color: var(--biz-text-3);
}

.biz-article__author {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--biz-text-2);
}

.biz-article__avatar {
  width: 30px; height: 30px;
  border-radius: 50%;
  background: var(--biz-brand-soft);
  color: var(--biz-brand);
  display: grid;
  place-items: center;
  font-size: 12px;
  font-weight: 600;
  flex: none;
}

.biz-article__cover {
  margin: 0 0 12px;
  border-radius: var(--biz-radius-lg);
  overflow: hidden;
  background: var(--biz-bg-3);
}

.biz-article__cover img { width: 100%; aspect-ratio: 16 / 7; object-fit: cover; }

.biz-article__lead {
  font-size: 16.5px;
  line-height: 1.85;
  color: var(--biz-text-2);
  padding: 18px 0 4px;
  margin-bottom: 8px;
  border-bottom: 1px solid var(--biz-line);
}

.biz-article__body { font-size: 16px; line-height: 1.9; color: #2B2B2B; }

.biz-article__body > * + * { margin-top: 22px; }

.biz-article__body h2 {
  font-size: 21px;
  font-weight: 700;
  line-height: 1.45;
  letter-spacing: -0.015em;
  color: var(--biz-text);
  padding-left: 14px;
  border-left: 3px solid var(--biz-brand);
  margin-top: 40px;
}

.biz-article__body h3 {
  font-size: 17.5px;
  font-weight: 600;
  line-height: 1.5;
  color: var(--biz-text);
  margin-top: 32px;
}

.biz-article__body figure { margin: 30px 0; }

.biz-article__body figure img {
  width: 100%;
  border-radius: var(--biz-radius);
  background: var(--biz-bg-3);
}

.biz-article__body figcaption {
  margin-top: 10px;
  font-size: 12.5px;
  color: var(--biz-text-3);
  text-align: center;
  line-height: 1.6;
}

.biz-article__body blockquote {
  margin: 30px 0;
  padding: 18px 22px;
  border-left: 3px solid var(--biz-brand);
  background: var(--biz-bg-2);
  border-radius: 0 var(--biz-radius) var(--biz-radius) 0;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--biz-text-2);
}

.biz-article__body blockquote cite {
  display: block;
  margin-top: 8px;
  font-size: 13px;
  font-style: normal;
  color: var(--biz-text-3);
}

.biz-article__body ul,
.biz-article__body ol { padding-left: 22px; }

.biz-article__body ul { list-style: disc; }
.biz-article__body ol { list-style: decimal; }
.biz-article__body li { margin-bottom: 10px; padding-left: 4px; }
.biz-article__body li::marker { color: var(--biz-brand); }

.biz-article__body table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
  margin: 28px 0;
}

.biz-article__body th,
.biz-article__body td {
  padding: 11px 14px;
  border-bottom: 1px solid var(--biz-line);
  text-align: left;
}

.biz-article__body th {
  background: var(--biz-bg-2);
  font-weight: 600;
  color: var(--biz-text);
  white-space: nowrap;
}

.biz-article__body td { color: var(--biz-text-2); }
.biz-article__body tbody tr:hover { background: var(--biz-bg-2); }

.biz-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
  margin-top: 40px;
  padding-top: 26px;
  border-top: 1px solid var(--biz-line);
}

.biz-tags a {
  padding: 5px 13px;
  border-radius: 999px;
  background: var(--biz-bg-2);
  font-size: 12.5px;
  color: var(--biz-text-2);
  transition: background-color .15s ease, color .15s ease;
}

.biz-tags a:hover { background: var(--biz-brand-soft); color: var(--biz-brand); }

/* ------------------------------------------------------------ 文章侧栏 */

.biz-sidebar { position: sticky; top: calc(var(--biz-header-h) + 24px); align-self: start; }

.biz-side-card {
  background: var(--biz-bg-2);
  border-radius: var(--biz-radius-lg);
  padding: 20px;
  margin-bottom: 20px;
}

.biz-side-card--plain { background: var(--biz-bg); border: 1px solid var(--biz-line); }

.biz-side-card__title {
  font-size: 15px;
  font-weight: 600;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--biz-line);
  margin-bottom: 14px;
}

.biz-author {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
}

.biz-author__avatar {
  width: 44px; height: 44px;
  border-radius: 50%;
  background: var(--biz-brand-soft);
  color: var(--biz-brand);
  display: grid;
  place-items: center;
  font-size: 15px;
  font-weight: 700;
  flex: none;
}

.biz-author__name { font-size: 14.5px; font-weight: 600; }
.biz-author__role { font-size: 12px; color: var(--biz-text-3); }
.biz-author__desc { font-size: 12.5px; color: var(--biz-text-2); line-height: 1.7; }

.biz-side-list li { border-bottom: 1px solid var(--biz-line); }
.biz-side-list li:last-child { border-bottom: 0; }

.biz-side-list a {
  display: block;
  padding: 12px 0;
  transition: color .15s ease;
}

.biz-side-list a:hover { color: var(--biz-brand); }
.biz-side-list li:first-child a { padding-top: 0; }

.biz-side-list__title {
  font-size: 13.5px;
  font-weight: 500;
  line-height: 1.55;
  margin-bottom: 5px;
}

.biz-side-list__meta { font-size: 12px; color: var(--biz-text-3); }

/* --------------------------------------------------------------- 翻页 */

.biz-pager {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  margin-top: 48px;
}

.biz-pager__item {
  display: block;
  padding: 18px 20px;
  border: 1px solid var(--biz-line);
  border-radius: var(--biz-radius);
  transition: border-color .16s ease, background-color .16s ease;
}

.biz-pager__item:hover { border-color: var(--biz-line-2); background: var(--biz-bg-2); }

.biz-pager__label {
  font-size: 11.5px;
  color: var(--biz-text-3);
  margin-bottom: 6px;
  display: flex;
  align-items: center;
  gap: 5px;
}

.biz-pager__title { font-size: 14px; font-weight: 600; line-height: 1.5; }

.biz-pager__item--next { text-align: right; }
.biz-pager__item--next .biz-pager__label { justify-content: flex-end; }

.biz-pager__item.is-disabled { opacity: .4; pointer-events: none; }

/* --------------------------------------------------------- 栏目列表页 */

.biz-hero-bar {
  background: var(--biz-bg-2);
  border-bottom: 1px solid var(--biz-line);
  padding: 34px 0 30px;
}

.biz-hero-bar__title {
  font-size: 28px;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 8px;
}

.biz-hero-bar__desc {
  font-size: 14px;
  color: var(--biz-text-2);
  max-width: 720px;
  line-height: 1.7;
}

.biz-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 28px;
}

.biz-filters a {
  padding: 7px 16px;
  border-radius: 999px;
  border: 1px solid var(--biz-line);
  font-size: 13px;
  color: var(--biz-text-2);
  transition: all .16s ease;
}

.biz-filters a:hover { border-color: var(--biz-line-2); color: var(--biz-text); }
.biz-filters a.is-active {
  background: var(--biz-brand);
  border-color: var(--biz-brand);
  color: #fff;
}

.biz-quote {
  position: relative;
  background: var(--biz-bg);
  border: 1px solid var(--biz-line);
  border-radius: var(--biz-radius);
  padding: 18px 18px 16px;
  overflow: hidden;
  transition: border-color .16s ease, transform .16s ease;
}

.biz-quote::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 3px;
  background: var(--biz-line);
  transition: background-color .16s ease;
}

.biz-quote:hover { border-color: var(--biz-line-2); transform: translateY(-1px); }
.biz-quote.is-up::before { background: var(--biz-up); }
.biz-quote.is-down::before { background: var(--biz-down); }

.biz-quote__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 14px;
}

.biz-quote__name { font-size: 14px; font-weight: 500; }
.biz-quote__unit { font-size: 11px; color: var(--biz-text-3); white-space: nowrap; }

.biz-quote__price {
  font-size: 26px;
  font-weight: 600;
  line-height: 1.1;
  letter-spacing: -0.02em;
  font-variant-numeric: tabular-nums;
  margin-bottom: 12px;
}

.biz-quote__delta {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 500;
  font-variant-numeric: tabular-nums;
}

.biz-quote__arrow { display: inline-flex; width: 11px; height: 11px; flex: none; }
.biz-quote__arrow svg { width: 100%; height: 100%; display: block; }

.is-up .biz-quote__price,
.is-up .biz-quote__delta { color: var(--biz-up); }
.is-down .biz-quote__price,
.is-down .biz-quote__delta { color: var(--biz-down); }
.is-flat .biz-quote__price,
.is-flat .biz-quote__delta { color: var(--biz-text-2); }

/* ============================================================== 响应式 */

@media (max-width: 1199px) {
  .biz-hero { grid-template-columns: minmax(0, 1fr) 268px; gap: 22px; }
  .biz-layout { grid-template-columns: minmax(0, 1fr) 272px; gap: 32px; }
  .biz-footer__main { grid-template-columns: 1.2fr repeat(3, 1fr); gap: 24px; }
}

@media (max-width: 991px) {
  .biz-nav,
  .biz-search { display: none; }

  .biz-burger { display: grid; }
  .biz-header__inner { justify-content: space-between; }

  .biz-grid--4 { grid-template-columns: repeat(3, minmax(0, 1fr)); }

  .biz-hero { grid-template-columns: minmax(0, 1fr); gap: 26px; }
  .biz-rank { align-self: stretch; }

  .biz-split { grid-template-columns: minmax(0, 1fr); gap: 26px; }

  .biz-layout { grid-template-columns: minmax(0, 1fr); gap: 0; }
  .biz-sidebar { position: static; margin-top: 40px; }

  .biz-footer__main { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 28px; }
  .biz-footer__brand { grid-column: 1 / -1; max-width: none; }

  .biz-ad img { border-radius: var(--biz-radius); }
}

@media (max-width: 767px) {
  body { font-size: 14.5px; padding-bottom: 60px; }

  .biz-container { padding: 0 16px; }

  .biz-topbar { display: none; }

  :root { --biz-header-h: 56px; }

  .biz-ad { margin-bottom: 36px; }

  .biz-main { padding: 28px 0 44px; }
  .biz-section { margin-bottom: 36px; }
  .biz-section__title { font-size: 18px; }
  .biz-hero { margin-bottom: 36px; }

  .biz-hero__title { font-size: 20px; }
  .biz-hero__excerpt { font-size: 13.5px; }

  .biz-grid { gap: 18px; }
  .biz-grid--4,
  .biz-grid--3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }

  .biz-card--wide { flex-direction: column; gap: 0; }
  .biz-card--wide .biz-card__media { width: 100%; margin-bottom: 12px; }

  .biz-feature__title { font-size: 17px; }

  .biz-quote__price { font-size: 22px; }

  .biz-tabbar { display: flex; }

  .biz-footer { padding-top: 34px; }
  .biz-footer__main { grid-template-columns: minmax(0, 1fr); gap: 26px; }
  .biz-footer__bottom { flex-direction: column; align-items: flex-start; }

  .biz-crumb { padding-top: 14px; font-size: 12px; }
  .biz-layout { padding: 18px 0 40px; }
  .biz-article__title { font-size: 23px; }
  .biz-article__body { font-size: 15.5px; line-height: 1.85; }
  .biz-article__body h2 { font-size: 18.5px; }
  .biz-article__body h3 { font-size: 16.5px; }
  .biz-article__lead { font-size: 15.5px; }

  .biz-article__body table { font-size: 13px; }
  .biz-article__body th,
  .biz-article__body td { padding: 9px 10px; }

  .biz-pager { grid-template-columns: minmax(0, 1fr); gap: 12px; }
  .biz-pager__item--next { text-align: left; }
  .biz-pager__item--next .biz-pager__label { justify-content: flex-start; }

  .biz-hero-bar { padding: 26px 0 22px; }
  .biz-hero-bar__title { font-size: 22px; }
}

@media (max-width: 519px) {
  .biz-grid--4,
  .biz-grid--3,
  .biz-grid--2 { grid-template-columns: minmax(0, 1fr); }
  .biz-ad { margin-bottom: 28px; }
  .biz-badge { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
    scroll-behavior: auto !important;
  }
}