/* ========== 变量与基础 ========== */
:root {
  --ab-blue: #1E6FBA;
  --ab-white: #F5F8FC;
  --ab-yellow: #F2B441;
  --ab-red: #E5523A;
  --ab-navy: #0C2438;
  --ab-lake: #9CC5F0;
  --ab-green: #7BB55E;
  --ab-ink: #2A2A32;
  --ab-font-head: "DIN Condensed", "Impact", "Arial Narrow", sans-serif;
  --ab-font-body: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
  --ab-font-data: "JetBrains Mono", "Roboto Mono", "Courier New", monospace;
  --ab-grad-blue: linear-gradient(135deg, #1E6FBA 0%, #0C2438 100%);
  --ab-radius: 18px;
  --ab-radius-lg: 28px;
  --ab-shadow: 0 18px 40px rgba(12, 36, 56, 0.10);
  --ab-content-w: 1200px;
  --ab-header-h: 70px;
}

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

body, h1, h2, h3, h4, h5, h6, p, figure, blockquote, dl, dd {
  margin: 0;
}

[hidden] {
  display: none !important;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--ab-header-h) + 18px);
  -webkit-text-size-adjust: 100%;
}

body {
  min-height: 100vh;
  padding-top: calc(var(--ab-header-h) + 8px);
  font-family: var(--ab-font-body);
  font-size: 16px;
  line-height: 1.75;
  color: var(--ab-ink);
  background-color: var(--ab-white);
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  font-family: var(--ab-font-head);
  font-weight: 700;
  line-height: 1.12;
  letter-spacing: 0.015em;
  color: var(--ab-navy);
  text-wrap: balance;
}

h1 { font-size: clamp(2.5rem, 5.5vw, 4.4rem); }
h2 { font-size: clamp(1.8rem, 3.4vw, 2.9rem); }
h3 { font-size: clamp(1.2rem, 2vw, 1.6rem); }

a {
  color: var(--ab-blue);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

::selection {
  background: rgba(242, 180, 65, 0.55);
}

:focus-visible {
  outline: 3px solid var(--ab-yellow);
  outline-offset: 3px;
  border-radius: 6px;
}

#main-content {
  scroll-margin-top: calc(var(--ab-header-h) + 20px);
}

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

/* ========== 头部与悬浮导航 ========== */
.ab-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 1000;
  display: flex;
  justify-content: center;
  padding: 14px 20px 0;
  pointer-events: none;
}

.ab-skip {
  position: fixed;
  top: 10px;
  left: 10px;
  z-index: 2000;
  padding: 10px 20px;
  border-radius: 999px;
  background: var(--ab-navy);
  color: #fff;
  font-size: 0.88rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  box-shadow: var(--ab-shadow);
  pointer-events: auto;
  transform: translateY(calc(-100% - 20px));
  transition: transform 0.25s ease;
}

.ab-skip:focus {
  transform: translateY(0);
  color: #fff;
  text-decoration: none;
}

.ab-progress {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 1200;
  width: 0;
  height: 3px;
  border-radius: 0 3px 3px 0;
  background: linear-gradient(90deg, var(--ab-yellow), var(--ab-red), var(--ab-blue));
  pointer-events: none;
}

.ab-navbar {
  position: relative;
  width: 100%;
  max-width: var(--ab-content-w);
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 10px 10px 10px 12px;
  border-radius: 999px;
  background: linear-gradient(135deg, rgba(30, 111, 186, 0.96), rgba(12, 36, 56, 0.98));
  border: 1px solid rgba(255, 255, 255, 0.16);
  box-shadow: 0 16px 40px rgba(12, 36, 56, 0.30), inset 0 1px 0 rgba(255, 255, 255, 0.20);
  backdrop-filter: blur(12px);
  pointer-events: auto;
}

.ab-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
  color: #fff;
  text-decoration: none;
}

.ab-brand:hover {
  text-decoration: none;
}

.ab-brand-mark {
  font-family: var(--ab-font-head);
  font-size: 1.3rem;
  font-weight: 700;
  line-height: 1;
  letter-spacing: 0.1em;
  padding: 7px 10px 6px;
  border: 2px solid var(--ab-yellow);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.18);
}

.ab-brand-sub {
  font-family: var(--ab-font-head);
  font-size: 0.92rem;
  letter-spacing: 0.3em;
  color: var(--ab-yellow);
  text-transform: uppercase;
}

.ab-nav {
  display: flex;
  align-items: center;
  gap: 2px;
  margin-left: auto;
}

.ab-nav-link {
  position: relative;
  display: inline-flex;
  align-items: center;
  padding: 8px 14px;
  border-radius: 999px;
  font-size: 0.92rem;
  font-weight: 500;
  letter-spacing: 0.03em;
  color: rgba(255, 255, 255, 0.86);
  text-decoration: none;
  white-space: nowrap;
  transition: background-color 0.2s ease, color 0.2s ease;
}

.ab-nav-link:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.12);
  text-decoration: none;
}

.ab-nav-link[aria-current="page"] {
  color: var(--ab-navy);
  background: var(--ab-yellow);
  font-weight: 600;
}

@media (min-width: 881px) {
  .ab-nav-link[aria-current="page"]::after {
    content: "";
    position: absolute;
    left: 50%;
    bottom: -7px;
    width: 8px;
    height: 8px;
    background: var(--ab-yellow);
    border-radius: 2px;
    transform: translateX(-50%) rotate(45deg);
  }
}

.ab-nav-toggle {
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  width: 42px;
  height: 42px;
  margin-left: auto;
  border: 1px solid rgba(255, 255, 255, 0.28);
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.12);
  cursor: pointer;
  transition: background-color 0.2s ease;
}

.ab-nav-toggle:hover {
  background: rgba(255, 255, 255, 0.20);
}

.ab-nav-toggle-bar {
  display: block;
  width: 18px;
  height: 2px;
  border-radius: 2px;
  background: #fff;
  transition: transform 0.25s ease, opacity 0.2s ease;
}

.ab-navbar[data-open] .ab-nav-toggle-bar:nth-child(2) {
  transform: translateY(6px) rotate(45deg);
}

.ab-navbar[data-open] .ab-nav-toggle-bar:nth-child(3) {
  opacity: 0;
}

.ab-navbar[data-open] .ab-nav-toggle-bar:nth-child(4) {
  transform: translateY(-6px) rotate(-45deg);
}

/* ========== 页脚 ========== */
.ab-footer {
  position: relative;
  margin-top: 80px;
  overflow: hidden;
  background: var(--ab-navy);
  color: rgba(255, 255, 255, 0.74);
}

.ab-footer::before {
  content: "";
  position: absolute;
  top: -160px;
  right: -120px;
  width: 420px;
  height: 420px;
  background: linear-gradient(135deg, rgba(30, 111, 186, 0.55), rgba(30, 111, 186, 0) 70%);
  border-radius: 32px;
  transform: rotate(12deg);
  pointer-events: none;
}

.ab-footer::after {
  content: "";
  position: absolute;
  bottom: -100px;
  left: -80px;
  width: 260px;
  height: 260px;
  border: 1px solid rgba(242, 180, 65, 0.22);
  border-radius: 28px;
  transform: rotate(45deg);
  pointer-events: none;
}

.ab-footer-inner {
  position: relative;
  z-index: 2;
  max-width: var(--ab-content-w);
  margin: 0 auto;
  padding: 72px 24px 28px;
}

.ab-footer-grid {
  display: grid;
  grid-template-columns: minmax(0, 2fr) minmax(0, 1fr) minmax(0, 1fr) minmax(0, 1.7fr);
  gap: 40px;
}

.ab-footer-intro {
  display: grid;
  align-content: start;
}

.ab-footer-brand {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  color: #fff;
  text-decoration: none;
}

.ab-footer-brand:hover {
  text-decoration: none;
}

.ab-footer-brand-cn {
  font-family: var(--ab-font-head);
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: #fff;
}

.ab-footer-brand-en {
  font-family: var(--ab-font-head);
  font-size: 1rem;
  letter-spacing: 0.3em;
  color: var(--ab-yellow);
  text-transform: uppercase;
}

.ab-footer-tagline {
  margin-top: 16px;
  font-size: 0.9rem;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.62);
  max-width: 40ch;
}

.ab-footer-contact {
  display: grid;
  gap: 4px;
  margin-top: 18px;
}

.ab-footer-contact-row {
  display: inline-flex;
  align-items: baseline;
  gap: 6px;
  font-size: 0.88rem;
  color: rgba(255, 255, 255, 0.62);
}

.ab-footer-col {
  display: grid;
  align-content: start;
  gap: 12px;
}

.ab-footer-head {
  margin-bottom: 4px;
  font-family: var(--ab-font-body);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--ab-yellow);
}

.ab-footer-links {
  display: grid;
  gap: 8px;
}

.ab-footer-links a {
  width: fit-content;
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.72);
  text-decoration: none;
  transition: color 0.2s ease, transform 0.2s ease;
}

.ab-footer-links a:hover {
  color: #fff;
  transform: translateX(4px);
}

.ab-footer-trust {
  display: grid;
  align-content: start;
  justify-items: start;
  gap: 16px;
}

.ab-trust-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  border: 1px solid rgba(242, 180, 65, 0.5);
  border-radius: 999px;
  background: rgba(242, 180, 65, 0.08);
  color: var(--ab-yellow);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
}

.ab-trust-badge::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--ab-green);
  box-shadow: 0 0 0 3px rgba(123, 181, 94, 0.25);
}

.ab-footer-trust p {
  font-size: 0.9rem;
  line-height: 1.85;
  color: rgba(255, 255, 255, 0.6);
  max-width: 34ch;
}

.ab-footer-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px 24px;
  margin-top: 52px;
  padding-top: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.14);
  font-family: var(--ab-font-data);
  font-size: 0.8rem;
  letter-spacing: 0.02em;
  color: rgba(255, 255, 255, 0.5);
}

.ab-footer-copy {
  letter-spacing: 0.03em;
}

.ab-footer-icp {
  letter-spacing: 0.06em;
}

/* ========== 内容壳与分区 ========== */
.ab-container {
  width: 100%;
  max-width: var(--ab-content-w);
  margin: 0 auto;
  padding: 0 24px;
}

.ab-section {
  padding: 76px 0;
}

.ab-section--tight {
  padding: 44px 0;
}

.ab-section--light {
  background: linear-gradient(140deg, #F5F8FC 0%, #E7F0FA 100%);
}

.ab-section--dark {
  background: var(--ab-navy);
  color: rgba(255, 255, 255, 0.78);
}

.ab-section--dark h1,
.ab-section--dark h2,
.ab-section--dark h3,
.ab-section--dark h4 {
  color: #fff;
}

.ab-section--dark .ab-desc {
  color: rgba(255, 255, 255, 0.62);
}

.ab-section--dark .ab-kicker {
  color: var(--ab-lake);
}

.ab-section--dark .ab-data {
  color: var(--ab-lake);
}

.ab-kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
  font-family: var(--ab-font-head);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--ab-blue);
}

.ab-kicker::before {
  content: "";
  width: 30px;
  height: 12px;
  background: linear-gradient(90deg, var(--ab-yellow), var(--ab-red));
  clip-path: polygon(0 0, 100% 0, 72% 100%, 0 100%);
}

.ab-title {
  margin-bottom: 18px;
}

.ab-desc {
  font-size: 1.02rem;
  line-height: 1.8;
  color: #60748A;
  max-width: 58ch;
}

/* ========== 按钮 ========== */
.ab-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 12px 26px;
  border: 2px solid transparent;
  border-radius: 999px;
  font-family: var(--ab-font-body);
  font-size: 0.95rem;
  font-weight: 600;
  line-height: 1.2;
  text-decoration: none;
  cursor: pointer;
  transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
}

.ab-btn:hover {
  text-decoration: none;
  transform: translateY(-2px);
}

.ab-btn:active {
  transform: translateY(0);
}

.ab-btn--primary {
  background: var(--ab-grad-blue);
  color: #fff;
  box-shadow: 0 10px 22px rgba(30, 111, 186, 0.35);
}

.ab-btn--primary:hover {
  color: #fff;
  box-shadow: 0 14px 28px rgba(30, 111, 186, 0.45);
}

.ab-btn--ghost {
  background: transparent;
  border-color: rgba(30, 111, 186, 0.45);
  color: var(--ab-blue);
}

.ab-btn--ghost:hover {
  background: rgba(30, 111, 186, 0.08);
}

.ab-btn--light {
  background: #fff;
  color: var(--ab-navy);
}

.ab-section--dark .ab-btn--ghost {
  border-color: rgba(255, 255, 255, 0.45);
  color: #fff;
}

.ab-section--dark .ab-btn--ghost:hover {
  background: rgba(255, 255, 255, 0.10);
}

/* ========== 面包屑 ========== */
.ab-breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  padding: 22px 0 8px;
  font-size: 0.84rem;
  color: #7A8CA0;
}

.ab-breadcrumb a {
  color: var(--ab-blue);
  text-decoration: none;
}

.ab-breadcrumb a:hover {
  text-decoration: underline;
}

.ab-breadcrumb-item + .ab-breadcrumb-item::before {
  content: "/";
  margin: 0 10px;
  color: #B7C7D8;
}

/* ========== 网格与卡片 ========== */
.ab-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 24px;
}

.ab-card {
  grid-column: span 4;
  padding: 28px;
  background: #fff;
  border: 1px solid rgba(30, 111, 186, 0.10);
  border-radius: var(--ab-radius);
  box-shadow: var(--ab-shadow);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.ab-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 26px 50px rgba(12, 36, 56, 0.14);
}

/* ========== 标签与角标 ========== */
.ab-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 12px;
  border-radius: 999px;
  background: rgba(30, 111, 186, 0.10);
  color: var(--ab-blue);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.03em;
}

.ab-badge--hot {
  background: rgba(229, 82, 58, 0.12);
  color: var(--ab-red);
}

.ab-badge--new {
  background: rgba(123, 181, 94, 0.16);
  color: #568B3C;
}

.ab-tag {
  display: inline-flex;
  padding: 6px 16px;
  border: 1px solid rgba(30, 111, 186, 0.25);
  border-radius: 999px;
  background: transparent;
  color: var(--ab-blue);
  font-size: 0.84rem;
  cursor: pointer;
  transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.ab-tag:hover,
.ab-tag[aria-pressed="true"],
.ab-tag.is-active {
  background: var(--ab-blue);
  border-color: var(--ab-blue);
  color: #fff;
}

/* ========== 可展开内容组 ========== */
.ab-panel {
  background: #fff;
  border: 1px solid rgba(30, 111, 186, 0.12);
  border-radius: var(--ab-radius);
  overflow: hidden;
  transition: box-shadow 0.25s ease, border-color 0.25s ease;
}

.ab-panel[data-open] {
  border-color: rgba(30, 111, 186, 0.30);
  box-shadow: var(--ab-shadow);
}

.ab-panel + .ab-panel {
  margin-top: 14px;
}

.ab-panel-trigger {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  width: 100%;
  padding: 20px 24px;
  border: 0;
  background: none;
  font: inherit;
  font-weight: 600;
  font-size: 1rem;
  text-align: left;
  color: var(--ab-navy);
  cursor: pointer;
}

.ab-panel-trigger::after {
  content: "+";
  flex-shrink: 0;
  font-family: var(--ab-font-data);
  font-size: 1.4rem;
  font-weight: 400;
  line-height: 1;
  color: var(--ab-blue);
  transition: transform 0.25s ease;
}

.ab-panel[data-open] .ab-panel-trigger::after {
  transform: rotate(45deg);
}

.ab-panel-body {
  max-height: 0;
  opacity: 0;
  overflow: hidden;
  padding: 0 24px;
  transition: max-height 0.3s ease, opacity 0.3s ease, padding 0.3s ease;
}

.ab-panel[data-open] .ab-panel-body {
  max-height: 480px;
  opacity: 1;
  padding: 4px 24px 22px;
}

/* ========== 图片容器占位 ========== */
.ab-visual {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  border-radius: var(--ab-radius);
  border: 1px solid rgba(30, 111, 186, 0.10);
  background: linear-gradient(140deg, #E9F1FA 0%, #F7FAFD 100%);
  min-height: 200px;
}

.ab-visual::after {
  content: "";
  position: absolute;
  inset: 0 auto auto 0;
  width: 60%;
  height: 60%;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.5), rgba(255, 255, 255, 0) 70%);
  pointer-events: none;
}

.ab-visual--ratio16x9 {
  aspect-ratio: 16 / 9;
  min-height: 0;
}

.ab-visual--ratio4x3 {
  aspect-ratio: 4 / 3;
  min-height: 0;
}

.ab-visual--dark {
  background: linear-gradient(140deg, var(--ab-navy) 0%, #163A54 100%);
  border-color: rgba(255, 255, 255, 0.08);
}

.ab-visual--dark::after {
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.10), transparent 60%);
}

.ab-visual--grid {
  background-image:
    linear-gradient(rgba(30, 111, 186, 0.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(30, 111, 186, 0.07) 1px, transparent 1px);
  background-size: 28px 28px;
}

.ab-visual--stripes {
  background-image:
    linear-gradient(135deg, rgba(30, 111, 186, 0.08) 25%, transparent 25%),
    linear-gradient(225deg, rgba(30, 111, 186, 0.08) 25%, transparent 25%);
  background-size: 34px 34px;
}

/* ========== 分隔线、数据与高亮 ========== */
.ab-divider {
  height: 4px;
  margin: 48px 0;
  border: 0;
  border-radius: 4px;
  background: linear-gradient(90deg, var(--ab-blue), var(--ab-lake) 55%, rgba(156, 197, 240, 0));
}

.ab-data {
  font-family: var(--ab-font-data);
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.02em;
}

.ab-highlight {
  display: inline-block;
  padding: 1px 10px;
  border-radius: 8px;
  background: linear-gradient(120deg, rgba(242, 180, 65, 0.45), rgba(242, 180, 65, 0.12));
  font-weight: 600;
  color: var(--ab-navy);
}

/* ========== 滚动显现与返回顶部 ========== */
.reveal-init {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity 0.55s ease, transform 0.55s ease;
}

.reveal-init.is-revealed {
  opacity: 1;
  transform: none;
}

.ab-scrolltop {
  position: fixed;
  right: 22px;
  bottom: 24px;
  z-index: 900;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border: 0;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--ab-blue), var(--ab-navy));
  color: #fff;
  cursor: pointer;
  box-shadow: 0 14px 28px rgba(12, 36, 56, 0.28);
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition: opacity 0.25s ease, transform 0.25s ease, visibility 0.25s ease;
}

.ab-scrolltop.is-visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.ab-scrolltop:hover {
  color: var(--ab-yellow);
}

/* ========== 响应式 ========== */
@media (max-width: 980px) {
  .ab-card {
    grid-column: span 6;
  }

  .ab-footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 880px) {
  .ab-navbar {
    gap: 12px;
    padding: 8px 8px 8px 10px;
  }

  .ab-nav-toggle {
    display: inline-flex;
  }

  .ab-nav {
    position: absolute;
    top: calc(100% + 12px);
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
    margin-left: 0;
    padding: 10px;
    border: 1px solid rgba(30, 111, 186, 0.12);
    border-radius: 20px;
    background: rgba(255, 255, 255, 0.98);
    box-shadow: 0 24px 50px rgba(12, 36, 56, 0.24);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: opacity 0.25s ease, transform 0.25s ease, visibility 0.25s ease;
  }

  .ab-navbar[data-open] .ab-nav {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
  }

  .ab-navbar[data-open] .ab-nav::before {
    content: "";
    position: absolute;
    top: -7px;
    right: 26px;
    width: 14px;
    height: 14px;
    background: #fff;
    border-radius: 3px;
    transform: rotate(45deg);
  }

  .ab-nav-link {
    padding: 12px 16px;
    border-radius: 14px;
    font-size: 1rem;
    color: var(--ab-navy);
    white-space: normal;
  }

  .ab-nav-link:hover {
    background: rgba(30, 111, 186, 0.08);
    color: var(--ab-navy);
  }

  .ab-nav-link[aria-current="page"] {
    color: var(--ab-navy);
  }
}

@media (max-width: 620px) {
  .ab-card {
    grid-column: 1 / -1;
  }

  .ab-section {
    padding: 56px 0;
  }
}

@media (max-width: 560px) {
  .ab-header {
    padding: 12px 14px 0;
  }

  .ab-footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .ab-footer-meta {
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
  }
}

/* ========== 减少动效 ========== */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .ab-progress {
    display: none;
  }

  .reveal-init {
    opacity: 1;
    transform: none;
    transition: none;
  }

  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}