/* ============================================================
   A9体育 中国官网 共享站点样式
   文件位置：/assets/site.css
   说明：本文件仅承载全站共享样式。
   ============================================================ */

/* ---------- 1. 重置与基础 ---------- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

article, aside, figcaption, figure, footer, header, main, nav, section {
  display: block;
}

body {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--text-primary);
  background: var(--bg-deep);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

main {
  flex: 1 0 auto;
  width: 100%;
}

ul[class], ol[class] {
  list-style: none;
}

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

img, picture, svg, video {
  display: block;
  max-width: 100%;
}

button, input, select, textarea {
  font: inherit;
  color: inherit;
}

button {
  background: none;
  border: none;
  cursor: pointer;
}

/* ---------- 2. CSS 变量 ---------- */
:root {
  --bg-deep: #0A0E14;
  --bg-surface: #F5F7FA;
  --bg-glass: rgba(255, 255, 255, 0.08);
  --bg-glass-strong: rgba(255, 255, 255, 0.13);

  --text-primary: #FFFFFF;
  --text-secondary: #A6B0C0;
  --text-on-surface: #0A0E14;
  --text-on-surface-soft: #3A4556;

  --accent-blue: #1E5BFF;
  --accent-blue-soft: rgba(30, 91, 255, 0.14);
  --accent-green: #00E68A;
  --accent-green-soft: rgba(0, 230, 138, 0.14);
  --accent-orange: #FF5C39;
  --accent-orange-soft: rgba(255, 92, 57, 0.14);

  --font-title: "Oswald", "Barlow Condensed", "Arial Narrow", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-body: "Inter", "Roboto", system-ui, -apple-system, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-mono: "Roboto Mono", "IBM Plex Mono", "SFMono-Regular", Consolas, "Courier New", monospace;
  --font-accent: "Playfair Display", Georgia, "Songti SC", "SimSun", serif;

  --container-w: 1280px;
  --header-h: 72px;
  --radius-s: 4px;
  --radius-m: 8px;
  --radius-l: 14px;
  --transition: 200ms cubic-bezier(0.2, 0.8, 0.2, 1);
  --shadow-card: 0 1px 3px rgba(0, 0, 0, 0.4), 0 8px 24px rgba(0, 0, 0, 0.2);

  --z-header: 100;
  --z-skip: 200;
}

@media (max-width: 1024px) {
  :root {
    --header-h: 64px;
  }
}

@media (max-width: 640px) {
  :root {
    --header-h: 60px;
  }
}

/* ---------- 3. 基础排版与焦点 ---------- */
:focus-visible {
  outline: 3px solid var(--accent-green);
  outline-offset: 2px;
  border-radius: 2px;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip-path: inset(50%);
  border: 0;
  white-space: nowrap;
}

.text-mono {
  font-family: var(--font-mono);
}

.text-accent-serif {
  font-family: var(--font-accent);
}

.text-secondary {
  color: var(--text-secondary);
}

.text-green {
  color: var(--accent-green);
}

.text-blue {
  color: #8FB0FF;
}

.text-orange {
  color: var(--accent-orange);
}

.text-center {
  text-align: center;
}

.skip-link {
  position: fixed;
  top: -100px;
  left: 1rem;
  z-index: var(--z-skip);
  background: var(--accent-green);
  color: var(--bg-deep);
  font-weight: 700;
  font-size: 0.9rem;
  padding: 0.7rem 1.2rem;
  border-radius: var(--radius-s);
  transition: top var(--transition);
}

.skip-link:focus-visible {
  top: 1rem;
}

/* ---------- 4. 容器与章节 ---------- */
.container {
  width: 100%;
  max-width: var(--container-w);
  margin-left: auto;
  margin-right: auto;
  padding-left: clamp(1rem, 3vw, 2rem);
  padding-right: clamp(1rem, 3vw, 2rem);
}

.section {
  padding-top: clamp(2.5rem, 6vw, 5rem);
  padding-bottom: clamp(2.5rem, 6vw, 5rem);
}

.section-surface {
  background: var(--bg-surface);
  color: var(--text-on-surface);
}

.section-heading {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-bottom: 2rem;
}

.section-kicker {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent-green);
}

.section-kicker::before {
  content: "";
  width: 2rem;
  height: 2px;
  background: var(--accent-green);
  flex-shrink: 0;
}

.section-title {
  font-family: var(--font-title);
  font-size: clamp(1.8rem, 3.5vw, 2.8rem);
  font-weight: 700;
  line-height: 1.08;
  letter-spacing: 0.01em;
  text-transform: uppercase;
  color: var(--text-primary);
}

.section-subtitle {
  color: var(--text-secondary);
  font-size: 1rem;
  line-height: 1.65;
  max-width: 62ch;
}

.section-surface .section-kicker {
  color: var(--accent-blue);
}

.section-surface .section-kicker::before {
  background: var(--accent-blue);
}

.section-surface .section-title {
  color: var(--text-on-surface);
}

.section-surface .section-subtitle {
  color: var(--text-on-surface-soft);
}

/* ---------- 5. 页头 ---------- */
.site-header {
  position: -webkit-sticky;
  position: sticky;
  top: 0;
  z-index: var(--z-header);
  height: var(--header-h);
  background: rgba(10, 14, 20, 0.86);
  -webkit-backdrop-filter: blur(18px);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

@supports not ((backdrop-filter: blur(4px)) or (-webkit-backdrop-filter: blur(4px))) {
  .site-header {
    background: rgba(10, 14, 20, 0.97);
  }
}

.header-inner {
  position: relative;
  max-width: var(--container-w);
  margin: 0 auto;
  padding: 0 clamp(1rem, 3vw, 2rem);
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

.scroll-progress {
  position: absolute;
  top: 0;
  left: 0;
  width: 0%;
  height: 3px;
  z-index: 3;
  pointer-events: none;
  background: linear-gradient(90deg, var(--accent-green) 0%, var(--accent-blue) 85%);
  border-radius: 0 2px 2px 0;
  transition: width 40ms linear;
}

/* ---------- 6. 品牌标识 ---------- */
.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  flex-shrink: 0;
}

.brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.4rem;
  height: 2.4rem;
  background: var(--accent-blue);
  color: #FFF;
  font-family: var(--font-title);
  font-size: 1.3rem;
  font-weight: 700;
  line-height: 1;
  border-radius: var(--radius-s);
  clip-path: polygon(0 0, calc(100% - 8px) 0, 100% 8px, 100% 100%, 8px 100%, 0 calc(100% - 8px));
  transition: background var(--transition), color var(--transition), transform var(--transition);
}

.brand:hover .brand-mark {
  background: var(--accent-green);
  color: var(--bg-deep);
}

.brand-copy {
  display: flex;
  flex-direction: column;
  gap: 0.05rem;
  line-height: 1.2;
}

.brand-name {
  font-family: var(--font-title);
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-primary);
  white-space: nowrap;
}

.brand-tagline {
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent-green);
  white-space: nowrap;
}

.brand-footer .brand-name {
  color: #FFF;
}

.brand-footer .brand-tagline {
  color: var(--accent-green);
}

/* ---------- 7. 导航 ---------- */
.site-nav {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 0.15rem;
}

.nav-item {
  position: relative;
}

.nav-link {
  position: relative;
  display: block;
  padding: 0.5rem 0.85rem;
  border-radius: var(--radius-s);
  color: var(--text-secondary);
  font-size: 0.93rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  transition: color var(--transition), background var(--transition);
}

.nav-link:hover {
  color: var(--text-primary);
  background: var(--bg-glass);
}

.nav-link[aria-current="page"] {
  color: var(--accent-green);
  font-weight: 600;
}

.nav-link[aria-current="page"]::after {
  content: "";
  position: absolute;
  left: 0.85rem;
  right: 0.85rem;
  bottom: 0;
  height: 2px;
  background: var(--accent-green);
  border-radius: 1px;
}

.nav-cta {
  margin-left: 0.35rem;
}

/* 移动端汉堡按钮 */
.nav-toggle {
  display: none;
  position: relative;
  width: 44px;
  height: 44px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: var(--radius-s);
  background: transparent;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  transition: border-color var(--transition), background var(--transition);
  flex-shrink: 0;
}

.nav-toggle:hover {
  border-color: var(--accent-green);
}

.nav-toggle-bar {
  display: block;
  width: 20px;
  height: 2px;
  border-radius: 2px;
  background: var(--text-primary);
  transition: transform var(--transition), opacity var(--transition), background var(--transition);
}

.nav-toggle:hover .nav-toggle-bar,
.nav-toggle[aria-expanded="true"] .nav-toggle-bar {
  background: var(--accent-green);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ---------- 8. 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.65rem 1.4rem;
  border-radius: var(--radius-s);
  font-weight: 600;
  font-size: 0.92rem;
  line-height: 1.2;
  border: 1px solid transparent;
  white-space: nowrap;
  transition: background var(--transition), border-color var(--transition), color var(--transition), box-shadow var(--transition), transform var(--transition);
}

.btn-primary {
  background: var(--accent-blue);
  border-color: var(--accent-blue);
  color: #FFF;
}

.btn-primary:hover {
  background: #2F6CFF;
  box-shadow: 0 6px 20px rgba(30, 91, 255, 0.35);
}

.btn-ghost {
  background: transparent;
  border-color: rgba(255, 255, 255, 0.3);
  color: var(--text-primary);
}

.btn-ghost:hover {
  border-color: var(--accent-green);
  color: var(--accent-green);
}

.btn-green {
  background: var(--accent-green);
  border-color: var(--accent-green);
  color: var(--bg-deep);
  font-weight: 700;
}

.btn-green:hover {
  box-shadow: 0 6px 20px rgba(0, 230, 138, 0.3);
}

/* ---------- 9. 页脚 ---------- */
.site-footer {
  flex-shrink: 0;
  margin-top: auto;
  background: #060910;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  position: relative;
}

.site-footer::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 0;
  width: 180px;
  height: 2px;
  background: linear-gradient(90deg, var(--accent-green), var(--accent-blue) 70%, transparent);
}

.footer-main {
  max-width: var(--container-w);
  margin: 0 auto;
  padding: 3rem clamp(1rem, 3vw, 2rem) 2.5rem;
  display: grid;
  grid-template-columns: 1.2fr 2fr;
  gap: 2.5rem;
}

.footer-brand {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 1rem;
}

.footer-trust {
  max-width: 34em;
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.65;
}

.footer-columns {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.footer-col {
  min-width: 0;
}

.footer-heading {
  display: inline-block;
  font-family: var(--font-title);
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-primary);
  margin-bottom: 0.9rem;
  padding-bottom: 0.4rem;
  border-bottom: 2px solid rgba(30, 91, 255, 0.6);
}

.footer-links,
.footer-contact {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.footer-links a,
.footer-contact a {
  color: var(--text-secondary);
  font-size: 0.92rem;
  transition: color var(--transition), padding-left var(--transition);
}

.footer-links a:hover,
.footer-contact a:hover {
  color: var(--accent-green);
  padding-left: 4px;
}

.footer-contact li {
  color: var(--text-secondary);
  font-size: 0.92rem;
  line-height: 1.5;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  background: rgba(0, 0, 0, 0.3);
}

.footer-bottom-inner {
  max-width: var(--container-w);
  margin: 0 auto;
  padding: 1rem clamp(1rem, 3vw, 2rem);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
}

.footer-copy,
.footer-disclaimer {
  font-size: 0.82rem;
  color: var(--text-secondary);
  letter-spacing: 0.02em;
}

/* ---------- 10. 页面标题区 ---------- */
.page-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(2rem, 5vw, 4rem) 0 2.5rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  margin-bottom: 2rem;
}

.page-hero::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 40%;
  height: 100%;
  background: linear-gradient(135deg, transparent 30%, rgba(30, 91, 255, 0.12) 60%, rgba(0, 230, 138, 0.08) 100%);
  clip-path: polygon(25% 0, 100% 0, 100% 100%, 0 100%);
  pointer-events: none;
}

.page-hero-inner {
  position: relative;
  z-index: 1;
}

.page-hero-title {
  font-family: var(--font-title);
  font-size: clamp(2.2rem, 5vw, 3.5rem);
  font-weight: 700;
  line-height: 1.05;
  text-transform: uppercase;
  letter-spacing: 0.01em;
  color: var(--text-primary);
}

.page-hero-subtitle {
  margin-top: 0.75rem;
  max-width: 60ch;
  color: var(--text-secondary);
  font-size: 1.05rem;
}

/* ---------- 11. 面包屑 ---------- */
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.35rem;
  padding: 0.85rem 0;
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.breadcrumb-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.3rem;
}

.breadcrumb-item {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
}

.breadcrumb-item + .breadcrumb-item::before {
  content: "/";
  color: var(--text-secondary);
  opacity: 0.5;
}

.breadcrumb-item a {
  color: var(--text-secondary);
  transition: color var(--transition);
}

.breadcrumb-item a:hover {
  color: var(--accent-green);
}

.breadcrumb-item[aria-current="page"] {
  color: var(--text-primary);
  font-weight: 500;
}

/* ---------- 12. 网格 ---------- */
.grid {
  display: grid;
  gap: 1.5rem;
}

.grid-12 {
  grid-template-columns: repeat(12, 1fr);
}

.grid-2 {
  grid-template-columns: repeat(2, 1fr);
}

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

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

@media (max-width: 1024px) {
  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }
  .grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 640px) {
  .grid-2,
  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr;
  }
}

/* ---------- 13. 卡片 ---------- */
.card {
  background: var(--bg-surface);
  color: var(--text-on-surface);
  border-radius: var(--radius-m);
  box-shadow: var(--shadow-card);
  padding: 1.5rem;
  border: 1px solid rgba(255, 255, 255, 0.04);
}

.card-glass {
  background: var(--bg-glass);
  color: var(--text-primary);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-m);
  padding: 1.5rem;
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  transition: background var(--transition), border-color var(--transition), transform var(--transition);
}

.card-glass:hover {
  background: var(--bg-glass-strong);
  border-color: rgba(255, 255, 255, 0.18);
}

.card .tag-green,
.card .stat-value,
.card .stat-trend[data-trend="up"] {
  color: #009E63;
}

/* ---------- 14. 标签 ---------- */
.tag {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 0.2rem 0.6rem;
  border-radius: var(--radius-s);
  border: 1px solid transparent;
  line-height: 1.4;
  white-space: nowrap;
}

.tag-green {
  color: var(--accent-green);
  background: var(--accent-green-soft);
  border-color: rgba(0, 230, 138, 0.25);
}

.tag-blue {
  color: #8FB0FF;
  background: var(--accent-blue-soft);
  border-color: rgba(30, 91, 255, 0.25);
}

.tag-orange {
  color: var(--accent-orange);
  background: var(--accent-orange-soft);
  border-color: rgba(255, 92, 57, 0.25);
}

.tag-surface {
  color: var(--text-on-surface-soft);
  background: rgba(10, 14, 20, 0.06);
  border-color: rgba(10, 14, 20, 0.1);
}

/* ---------- 15. 数据统计块 ---------- */
.stat-block {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  min-width: 0;
  padding: 1rem 1.25rem;
  background: var(--bg-glass);
  border: 1px solid rgba(255, 255, 255, 0.09);
  border-radius: var(--radius-m);
}

.stat-value {
  font-family: var(--font-mono);
  font-size: clamp(1.4rem, 2.6vw, 2.2rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--accent-green);
}

.stat-label {
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-secondary);
}

.stat-trend {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  margin-top: 0.2rem;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  font-weight: 600;
}

.stat-trend[data-trend="up"] {
  color: var(--accent-green);
}

.stat-trend[data-trend="down"] {
  color: var(--accent-orange);
}

.stat-trend[data-trend="flat"] {
  color: var(--text-secondary);
}

.stat-block-surface {
  background: rgba(10, 14, 20, 0.05);
  border-color: rgba(10, 14, 20, 0.08);
}

.stat-block-surface .stat-value {
  color: var(--accent-blue);
}

.stat-block-surface .stat-label {
  color: var(--text-on-surface-soft);
}

/* ---------- 16. 数据表格 ---------- */
.table-wrap {
  overflow-x: auto;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-m);
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
  min-width: 720px;
}

.data-table th {
  text-align: left;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent-green);
  padding: 0.85rem 1rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  white-space: nowrap;
}

.data-table td {
  padding: 0.7rem 1rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  color: var(--text-secondary);
}

.data-table td:first-child {
  color: var(--text-primary);
  font-weight: 500;
}

.data-table tbody tr {
  transition: background var(--transition);
}

.data-table tbody tr:hover {
  background: rgba(30, 91, 255, 0.08);
}

.table-surface.data-table th {
  color: var(--accent-blue);
  border-bottom-color: rgba(10, 14, 20, 0.1);
}

.table-surface.data-table td {
  color: var(--text-on-surface-soft);
  border-bottom-color: rgba(10, 14, 20, 0.05);
}

.table-surface.data-table td:first-child {
  color: var(--text-on-surface);
}

.table-surface.data-table tbody tr:hover {
  background: rgba(30, 91, 255, 0.06);
}

/* ---------- 17. 图片容器 ---------- */
.image-frame {
  position: relative;
  display: block;
  overflow: hidden;
  aspect-ratio: 16 / 9;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-m);
}

.image-frame::before {
  content: "IMG";
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.2em;
  color: rgba(255, 255, 255, 0.3);
  background: linear-gradient(135deg, rgba(30, 91, 255, 0.08), rgba(0, 230, 138, 0.05));
}

.image-frame img {
  position: relative;
  z-index: 1;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.image-frame .image-caption {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 2;
  padding: 2rem 0.75rem 0.5rem;
  background: linear-gradient(0deg, rgba(0, 0, 0, 0.6), transparent);
  color: var(--text-primary);
  font-size: 0.8rem;
}

.image-frame[data-ratio="4/3"] {
  aspect-ratio: 4 / 3;
}

.image-frame[data-ratio="1/1"] {
  aspect-ratio: 1 / 1;
}

.image-frame[data-ratio="21/9"] {
  aspect-ratio: 21 / 9;
}

.image-frame-surface {
  background: rgba(10, 14, 20, 0.08);
  border-color: rgba(10, 14, 20, 0.1);
}

.image-frame-surface::before {
  color: rgba(10, 14, 20, 0.35);
  background: linear-gradient(135deg, rgba(30, 91, 255, 0.06), rgba(0, 230, 138, 0.04));
}

/* ---------- 18. 引文与分割线 ---------- */
.blockquote {
  font-family: var(--font-accent);
  font-size: clamp(1.2rem, 2vw, 1.6rem);
  line-height: 1.5;
  color: var(--text-primary);
  font-style: italic;
  border-left: 3px solid var(--accent-orange);
  padding: 0.5rem 0 0.5rem 1.25rem;
  margin: 1.5rem 0;
}

.blockquote cite {
  display: block;
  font-family: var(--font-body);
  font-style: normal;
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-top: 0.5rem;
}

.divider {
  height: 1px;
  border: 0;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.12), transparent);
  margin: 0;
}

/* ---------- 19. 分页 ---------- */
.pagination {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-top: 2rem;
}

.pagination a,
.pagination span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 2.2rem;
  height: 2.2rem;
  padding: 0 0.5rem;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-s);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--text-secondary);
  transition: background var(--transition), border-color var(--transition), color var(--transition);
}

.pagination a:hover {
  border-color: var(--accent-blue);
  color: var(--text-primary);
  background: var(--accent-blue-soft);
}

.pagination .is-active {
  background: var(--accent-blue);
  border-color: var(--accent-blue);
  color: #FFF;
}

/* ---------- 20. 滚动锁 ---------- */
html.nav-lock,
html.nav-lock body {
  overflow: hidden;
}

/* ---------- 21. 移动端导航状态 ---------- */
@media (max-width: 1024px) {
  .brand-name {
    font-size: 0.98rem;
  }

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

  .site-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    max-height: calc(100vh - var(--header-h));
    overflow-y: auto;
    flex-direction: column;
    align-items: stretch;
    justify-content: flex-start;
    gap: 1rem;
    padding: 2rem clamp(1.5rem, 5vw, 2.5rem) 3rem;
    background: rgba(8, 11, 17, 0.98);
    -webkit-backdrop-filter: blur(24px);
    backdrop-filter: blur(24px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.4);
    transform: translateY(-12px);
    opacity: 0;
    visibility: hidden;
    transition: transform 200ms ease, opacity 200ms ease, visibility 200ms ease;
  }

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

  .nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
  }

  .nav-item {
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  }

  .nav-link {
    padding: 0.8rem 0.4rem;
    font-size: 1.02rem;
    border-radius: 0;
  }

  .nav-link[aria-current="page"]::after {
    display: none;
  }

  .nav-link[aria-current="page"] {
    border-left: 3px solid var(--accent-green);
    padding-left: calc(0.4rem + 3px);
    color: var(--accent-green);
    background: var(--accent-green-soft);
  }

  .nav-cta {
    margin: 0.75rem 0 0;
    width: 100%;
  }

  .footer-main {
    grid-template-columns: 1fr;
    padding-top: 2.5rem;
  }

  .footer-columns {
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
  }
}

@media (max-width: 640px) {
  .footer-columns {
    grid-template-columns: 1fr;
    gap: 1.8rem;
  }

  .footer-bottom-inner {
    flex-direction: column;
    text-align: center;
  }

  .nav-toggle {
    width: 42px;
    height: 42px;
  }
}

/* ---------- 22. 减少动态偏好 ---------- */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }

  .site-nav,
  .nav-toggle .nav-toggle-bar,
  .scroll-progress {
    transition: none !important;
  }
}