/* ==========================================================================
   华体会体育CN官方 · 全站共享样式
   技术蓝图 / 控制台 / 电竞赛事情报
   ========================================================================== */

/* ---------- 1. 自定义属性 ---------- */
:root {
  --primary-bg: #0B1D3A;
  --accent-neon: #00FF9D;
  --accent-gold: #F5B800;
  --surface-light: #F4F7FB;
  --surface-glass: rgba(255, 255, 255, 0.08);
  --text-primary: #E6EDF7;
  --text-on-light: #1A2D4A;
  --grid-line: rgba(48, 168, 255, 0.2);
  --label-stroke: #FF6B35;
  --success: #37C97E;
  --text-muted: rgba(230, 237, 247, 0.6);
  --text-muted-light: rgba(26, 45, 74, 0.55);
  --font-display: "Noto Sans CJK SC", "Source Han Sans SC", "Microsoft YaHei", sans-serif;
  --font-body: "Noto Sans CJK SC", "Source Han Sans SC", "Arial", sans-serif;
  --font-mono: "Roboto Mono", "SFMono-Regular", Consolas, monospace;
  --container-w: 1280px;
  --header-h: 76px;
  --nav-breakpoint: 1024px;
  --scroll-target-offset: calc(var(--header-h) + 16px);
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --t-fast: 0.18s var(--ease-out);
  --t-base: 0.28s var(--ease-out);
}

/* ---------- 2. Reset ---------- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}
body {
  font-family: var(--font-body);
  font-size: clamp(0.95rem, 1.2vw, 1.1rem);
  line-height: 1.7;
  color: var(--text-on-light);
  background: var(--surface-light);
  min-height: 100vh;
  overflow-x: hidden;
}
img, svg, figure {
  display: block;
  max-width: 100%;
}
ul, ol {
  list-style: none;
}
a {
  color: inherit;
  text-decoration: none;
  transition: color var(--t-fast), background var(--t-fast), border-color var(--t-fast), opacity var(--t-fast), box-shadow var(--t-base);
}
button {
  font: inherit;
  color: inherit;
  background: none;
  border: none;
  cursor: pointer;
}
:focus-visible {
  outline: 2px solid var(--accent-gold);
  outline-offset: 3px;
  border-radius: 3px;
}
::selection {
  background: rgba(0, 255, 157, 0.35);
  color: var(--text-on-light);
}

/* ---------- 3. 中文排版基础 ---------- */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.25;
  color: var(--text-on-light);
  text-wrap: balance;
}
h1 {
  font-size: clamp(2rem, 5vw, 3.4rem);
  letter-spacing: -0.01em;
}
h2 {
  font-size: clamp(1.6rem, 3vw, 2.4rem);
}
h3 {
  font-size: clamp(1.1rem, 1.6vw, 1.35rem);
}
p {
  margin-bottom: 1em;
}
em, strong {
  font-style: normal;
  font-weight: 700;
}
code, .mono {
  font-family: var(--font-mono);
}

/* ---------- 4. 容器 ---------- */
.container {
  width: min(100% - 40px, var(--container-w));
  margin-inline: auto;
}
.main-content {
  min-height: 65vh;
  background: var(--surface-light);
}
:target {
  scroll-margin-top: var(--scroll-target-offset);
}
[data-coordinate-section] {
  scroll-margin-top: var(--scroll-target-offset);
}

/* ---------- 5. 页面头部（页眉区） ---------- */
.page-head {
  background: var(--primary-bg);
  position: relative;
  padding: 56px 0 64px;
  color: var(--text-primary);
  background-image:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
  background-size: 36px 36px;
  border-bottom: 1px solid var(--grid-line);
}
.page-head::after {
  content: "HTH//CN";
  position: absolute;
  right: 28px;
  bottom: 14px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--accent-neon);
  opacity: 0.55;
}
.page-head__inner {
  position: relative;
}
.page-head .breadcrumb {
  margin-bottom: 22px;
}
.page-head__title {
  color: var(--text-primary);
  font-size: clamp(1.9rem, 4vw, 3.2rem);
  font-weight: 900;
}
.page-head__title::before {
  content: "/";
  color: var(--accent-neon);
  margin-right: 8px;
  font-family: var(--font-mono);
}
.page-head__tagline {
  margin-top: 10px;
  max-width: 620px;
  font-size: clamp(1rem, 1.4vw, 1.2rem);
  line-height: 1.6;
  color: var(--text-muted);
}
.page-head__meta {
  margin-top: 20px;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--accent-gold);
  letter-spacing: 0.08em;
}
.page-head__meta::before {
  content: "▰▰▰";
  color: var(--accent-neon);
  letter-spacing: -4px;
  font-size: 10px;
}
.page-head__meta::after {
  content: "更新周期：周二 / 周五";
}

/* ---------- 6. 面包屑 ---------- */
.breadcrumb {
  font-size: 0.85rem;
  font-family: var(--font-mono);
}
.breadcrumb__list {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 4px;
}
.breadcrumb__item {
  display: flex;
  align-items: center;
  gap: 4px;
  color: var(--text-muted);
}
.breadcrumb__item + .breadcrumb__item::before {
  content: "/";
  color: var(--text-muted);
  opacity: 0.5;
  margin: 0 4px;
}
.breadcrumb__item[aria-current="page"] {
  color: var(--accent-gold);
}
.breadcrumb__link {
  color: var(--text-muted);
  transition: color var(--t-fast);
}
.breadcrumb__link:hover {
  color: var(--accent-neon);
}
.page-head .breadcrumb__item,
.page-head .breadcrumb__item::before {
  color: rgba(230, 237, 247, 0.5);
}
.page-head .breadcrumb__item[aria-current="page"] {
  color: var(--accent-gold);
}
.page-head .breadcrumb__link:hover {
  color: var(--accent-neon);
}

/* ---------- 7. 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 13px 28px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.9rem;
  letter-spacing: 0.05em;
  border-radius: 4px;
  cursor: pointer;
  text-decoration: none;
  border: 1px solid transparent;
  position: relative;
  transition: background var(--t-base), color var(--t-base), transform var(--t-base), box-shadow var(--t-base);
  white-space: nowrap;
}
.btn--primary {
  background: var(--accent-neon);
  color: var(--primary-bg);
  clip-path: polygon(0 0, calc(100% - 10px) 0, 100% 10px, 100% 100%, 10px 100%, 0 calc(100% - 10px));
}
.btn--primary:hover {
  background: #05fca4;
  color: var(--primary-bg);
  transform: translateY(-2px);
  box-shadow: 0 10px 28px rgba(0, 255, 157, 0.3);
}
.btn--gold {
  background: var(--accent-gold);
  color: var(--primary-bg);
}
.btn--gold:hover {
  background: #ffd23d;
  transform: translateY(-2px);
  box-shadow: 0 10px 24px rgba(245, 184, 0, 0.3);
}
.btn--ghost {
  background: transparent;
  color: var(--text-primary);
  border-color: var(--grid-line);
}
.btn--ghost:hover {
  border-color: var(--accent-neon);
  color: var(--accent-neon);
  background: rgba(0, 255, 157, 0.08);
}
.btn--light {
  background: var(--text-on-light);
  color: var(--surface-light);
}
.btn--light:hover {
  background: #25466b;
  transform: translateY(-2px);
}
.btn[disabled] {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

/* ---------- 8. 栏目标签 ---------- */
.section-label {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 32px;
}
.section-label__idx {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--accent-neon);
  background: var(--primary-bg);
  border: 1px solid var(--accent-neon);
  padding: 3px 8px;
  letter-spacing: 0.08em;
  line-height: 1.4;
}
.section-label__text {
  font-family: var(--font-display);
  font-size: clamp(1.4rem, 2.4vw, 1.9rem);
  font-weight: 700;
  color: var(--text-on-light);
}
.section-label__line {
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, var(--grid-line), transparent);
}
.section-label--dark .section-label__text {
  color: var(--text-primary);
}
.section-label--gold .section-label__idx {
  color: var(--accent-gold);
  border-color: var(--accent-gold);
}

/* ---------- 9. 图片容器 ---------- */
.image-frame {
  --ratio: 16 / 9;
  position: relative;
  padding: 8px;
  background: var(--primary-bg);
  border: 1px solid var(--grid-line);
  border-radius: 6px;
}
.image-frame__box {
  position: relative;
  aspect-ratio: var(--ratio);
  overflow: hidden;
  background:
    linear-gradient(135deg, rgba(48, 168, 255, 0.1) 0%, transparent 55%),
    var(--primary-bg);
}
.image-frame__box::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
  background-size: 24px 24px;
  opacity: 0.5;
}
.image-frame__box::after {
  content: "";
  position: absolute;
  left: 10px;
  bottom: 10px;
  width: 40px;
  height: 2px;
  background: var(--accent-gold);
}
.image-frame__img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 1;
  transition: opacity var(--t-base), transform var(--t-base);
}
.image-frame__img[data-src] {
  opacity: 0;
}
.image-frame__caption {
  padding: 10px 6px 2px;
  font-size: 0.8rem;
  font-family: var(--font-mono);
  color: var(--text-muted);
  letter-spacing: 0.05em;
}
.image-frame[data-ratio="16-9"] { --ratio: 16 / 9; }
.image-frame[data-ratio="4-3"] { --ratio: 4 / 3; }
.image-frame[data-ratio="1-1"] { --ratio: 1 / 1; }
.image-frame[data-ratio="21-9"] { --ratio: 21 / 9; }

/* ---------- 10. 纸张叠层 ---------- */
.paper-stack {
  position: relative;
  background: var(--surface-light);
  border: 1px solid rgba(26, 45, 74, 0.12);
  padding: 40px;
  border-radius: 4px;
  box-shadow: 0 2px 0 rgba(26, 45, 74, 0.04);
}
.paper-stack::before {
  content: "";
  position: absolute;
  top: 6px;
  right: -6px;
  bottom: -6px;
  left: 6px;
  border: 1px solid rgba(26, 45, 74, 0.06);
  border-radius: 4px;
  z-index: -1;
}
.paper-stack::after {
  content: "";
  position: absolute;
  top: 11px;
  right: -11px;
  bottom: -11px;
  left: 11px;
  border: 1px solid rgba(26, 45, 74, 0.04);
  border-radius: 4px;
  z-index: -2;
}

/* ---------- 11. 状态灯 ---------- */
.status-light {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--success);
  box-shadow: 0 0 0 3px rgba(55, 201, 126, 0.2);
}
.status-light--pulse {
  animation: status-pulse 2.2s var(--ease-out) infinite;
}
@keyframes status-pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(55, 201, 126, 0.35); }
  50% { box-shadow: 0 0 0 5px rgba(55, 201, 126, 0); }
}
.status-light--warn {
  background: var(--label-stroke);
  box-shadow: 0 0 0 3px rgba(255, 107, 53, 0.2);
}
.status-light--gold {
  background: var(--accent-gold);
  box-shadow: 0 0 0 3px rgba(245, 184, 0, 0.2);
}

/* ---------- 12. 蓝图网格覆盖层 ---------- */
.grid-overlay {
  position: relative;
}
.grid-overlay::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
  background-size: 36px 36px;
  z-index: 0;
}

/* ---------- 13. 标签 ---------- */
.tag-label {
  display: inline-block;
  padding: 4px 10px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  font-weight: 700;
  color: var(--label-stroke);
  border: 1px solid var(--label-stroke);
  border-radius: 2px;
  text-transform: uppercase;
  background: rgba(255, 107, 53, 0.06);
}
.tag-label--neon {
  color: var(--accent-neon);
  border-color: var(--accent-neon);
  background: rgba(0, 255, 157, 0.06);
}
.tag-label--gold {
  color: var(--accent-gold);
  border-color: var(--accent-gold);
  background: rgba(245, 184, 0, 0.06);
}

/* ---------- 14. 跳过链接 ---------- */
.skip-link {
  position: absolute;
  top: -60px;
  left: 16px;
  z-index: 3000;
  padding: 10px 20px;
  background: var(--accent-gold);
  color: var(--primary-bg);
  font-weight: 700;
  font-size: 0.85rem;
  border-radius: 4px;
  transition: top var(--t-base);
}
.skip-link:focus-visible {
  top: 12px;
}

/* ---------- 15. 滚动进度 ---------- */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 2px;
  width: 0;
  background: linear-gradient(90deg, var(--accent-neon), var(--accent-gold));
  z-index: 3000;
  pointer-events: none;
}

/* ---------- 16. 顶部命令栏 ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--primary-bg);
  color: var(--text-primary);
  border-bottom: 1px solid var(--grid-line);
}
.site-header__strip {
  display: block;
  height: 3px;
  background: linear-gradient(90deg, var(--accent-neon) 0%, var(--accent-gold) 60%, var(--label-stroke) 100%);
}
.site-header__inner {
  display: flex;
  align-items: center;
  gap: 18px;
  height: var(--header-h);
  position: relative;
}

/* —— 品牌 —— */
.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--text-primary);
  text-decoration: none;
  flex-shrink: 0;
}
.brand__mark {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--accent-neon) 0%, #00d68a 60%, var(--accent-gold) 100%);
  clip-path: polygon(0 0, calc(100% - 10px) 0, 100% 10px, 100% 100%, 10px 100%, 0 calc(100% - 10px));
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 13px;
  letter-spacing: -0.04em;
  color: var(--primary-bg);
  line-height: 1;
}
.brand__mark-tag {
  position: absolute;
  bottom: -2px;
  right: -2px;
  width: 9px;
  height: 9px;
  background: var(--accent-gold);
  border: 1px solid var(--primary-bg);
}
.brand__text {
  display: flex;
  flex-direction: column;
  gap: 1px;
  line-height: 1.15;
}
.brand__name {
  font-family: var(--font-display);
  font-size: 1.12rem;
  font-weight: 900;
  letter-spacing: 0.03em;
  color: var(--text-primary);
}
.brand__meta {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.25em;
  color: var(--accent-neon);
  opacity: 0.85;
  text-transform: uppercase;
}
.brand--footer .brand__name {
  font-size: 1.35rem;
}
.brand--footer .brand__meta {
  letter-spacing: 0.3em;
}

/* —— 导航 —— */
.site-nav {
  flex: 1;
  display: flex;
  justify-content: center;
}
.site-nav__list {
  display: flex;
  align-items: center;
  gap: 2px;
}
.site-nav__link {
  position: relative;
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 12px;
  font-family: var(--font-display);
  font-size: 0.88rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  color: var(--text-primary);
  border-radius: 4px;
  transition: background var(--t-fast), color var(--t-fast);
}
.site-nav__idx {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  line-height: 1;
  color: var(--accent-neon);
  opacity: 0.55;
  padding-top: 2px;
  letter-spacing: 0.06em;
}
.site-nav__link:hover {
  background: rgba(0, 255, 157, 0.08);
  color: var(--accent-neon);
}
.site-nav__link:hover .site-nav__idx {
  opacity: 1;
}
.site-nav__link[aria-current="page"] {
  color: var(--accent-neon);
  font-weight: 700;
  background: rgba(0, 255, 157, 0.1);
}
.site-nav__link[aria-current="page"]::before {
  content: "";
  position: absolute;
  left: 4px;
  top: 50%;
  transform: translateY(-50%);
  width: 3px;
  height: 60%;
  background: var(--accent-neon);
  border-radius: 2px;
}
.site-nav__link[aria-current="page"] .site-nav__idx {
  opacity: 1;
  color: var(--accent-gold);
}

/* —— 快速检索入口 —— */
.header-search {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 14px 7px 10px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--grid-line);
  border-radius: 4px;
  color: var(--text-muted);
  font-size: 0.78rem;
  white-space: nowrap;
  flex-shrink: 0;
  transition: border-color var(--t-fast), background var(--t-fast), color var(--t-fast);
}
.header-search:hover {
  border-color: var(--accent-neon);
  background: rgba(0, 255, 157, 0.08);
  color: var(--accent-neon);
}
.header-search__icon {
  display: grid;
  place-items: center;
  width: 16px;
  height: 16px;
  border: 1.5px solid currentColor;
  border-radius: 50%;
  position: relative;
}
.header-search__icon::after {
  content: "";
  position: absolute;
  width: 5px;
  height: 1.5px;
  background: currentColor;
  transform: rotate(45deg);
  right: -5px;
  bottom: -1px;
  border-radius: 1px;
}
.header-search__label {
  letter-spacing: 0.03em;
}
.header-search__kbd {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  padding: 2px 5px;
  border: 1px solid var(--grid-line);
  border-radius: 3px;
  background: rgba(255, 255, 255, 0.04);
  color: var(--text-muted);
  line-height: 1.2;
}

/* —— 坐标读数 —— */
.header-coordinate {
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.1em;
  color: var(--accent-neon);
  background: rgba(0, 255, 157, 0.07);
  border: 1px solid var(--grid-line);
  padding: 5px 9px;
  border-radius: 3px;
  white-space: nowrap;
  flex-shrink: 0;
  min-width: 78px;
  text-align: center;
  line-height: 1.3;
}

/* —— 状态 —— */
.header-status {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  background: rgba(55, 201, 126, 0.08);
  border: 1px solid rgba(55, 201, 126, 0.25);
  border-radius: 20px;
  flex-shrink: 0;
}
.header-status__text {
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  color: var(--text-primary);
  font-family: var(--font-display);
  font-weight: 500;
  white-space: nowrap;
}

/* —— 汉堡按钮 —— */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 42px;
  height: 42px;
  border: 1px solid var(--grid-line);
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.04);
  flex-shrink: 0;
  transition: border-color var(--t-fast), background var(--t-fast);
}
.nav-toggle:hover {
  border-color: var(--accent-neon);
  background: rgba(0, 255, 157, 0.08);
}
.nav-toggle__bar {
  display: block;
  width: 18px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 1px;
  transition: transform var(--t-base), opacity var(--t-fast);
}
.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);
}

/* ---------- 17. 移动端导航 ---------- */
@media (max-width: 1260px) {
  .header-search {
    display: none;
  }
  .header-coordinate {
    display: none;
  }
}

@media (max-width: 1023px) {
  .site-header__inner {
    gap: 12px;
  }
  .site-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    display: none;
    flex-direction: column;
    align-items: stretch;
    justify-content: flex-start;
    background: var(--primary-bg);
    border-top: 1px solid var(--grid-line);
    border-bottom: 1px solid var(--grid-line);
    padding: 8px 0 20px;
    box-shadow: 0 32px 60px rgba(0, 0, 0, 0.4);
    max-height: calc(100vh - var(--header-h) - 20px);
    overflow-y: auto;
  }
  .site-nav[data-open] {
    display: flex;
  }
  .site-nav__list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 0;
  }
  .site-nav__item {
    border-bottom: 1px solid rgba(48, 168, 255, 0.08);
  }
  .site-nav__item:last-child {
    border-bottom: none;
  }
  .site-nav__link {
    padding: 14px 22px;
    gap: 12px;
    border-radius: 0;
    font-size: 0.95rem;
  }
  .site-nav__link[aria-current="page"]::before {
    width: 3px;
    height: 60%;
    left: 6px;
  }
  .header-status {
    margin-left: auto;
  }
  .header-status__text {
    font-size: 0.7rem;
  }
  .nav-toggle {
    display: flex;
  }
}

@media (max-width: 560px) {
  .container {
    width: min(100% - 24px, var(--container-w));
  }
  .site-header__inner {
    height: 64px;
    --header-h: 64px;
    gap: 8px;
  }
  .brand__name {
    font-size: 1rem;
  }
  .brand__meta {
    display: none;
  }
  .brand__mark {
    width: 34px;
    height: 34px;
    font-size: 11px;
  }
  .header-status {
    padding: 5px 9px;
  }
  .header-status__text {
    font-size: 0.66rem;
  }
}

/* ---------- 18. 页脚 ---------- */
.site-footer {
  position: relative;
  background: var(--primary-bg);
  color: var(--text-primary);
  background-image:
    linear-gradient(rgba(48, 168, 255, 0.055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(48, 168, 255, 0.055) 1px, transparent 1px);
  background-size: 40px 40px;
  border-top: 1px solid var(--grid-line);
  padding-top: 56px;
  padding-bottom: 24px;
}
.site-footer__grid {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent-gold), var(--accent-neon) 40%, transparent 80%);
}
.site-footer__top {
  display: grid;
  grid-template-columns: 1.4fr 0.8fr 0.8fr 1.2fr;
  gap: 40px;
  padding-bottom: 44px;
}
.site-footer__about {
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.site-footer__trust {
  font-size: 0.85rem;
  line-height: 1.7;
  color: var(--text-muted);
  margin: 0;
  max-width: 280px;
}
.site-footer__tick {
  display: inline-grid;
  place-items: center;
  width: 18px;
  height: 18px;
  margin-right: 6px;
  background: var(--accent-neon);
  color: var(--primary-bg);
  font-size: 12px;
  font-weight: 700;
  border-radius: 50%;
  transform: translateY(3px);
}
.site-footer__heading {
  font-size: 0.82rem;
  font-family: var(--font-mono);
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent-gold);
  margin-bottom: 18px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--grid-line);
}
.site-footer__list,
.site-footer__contact {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.site-footer__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.88rem;
  color: var(--text-primary);
  transition: color var(--t-fast), transform var(--t-fast);
}
.site-footer__link::before {
  content: "→";
  font-family: var(--font-mono);
  color: var(--accent-neon);
  font-size: 0.78rem;
  opacity: 0;
  transition: opacity var(--t-fast), transform var(--t-fast);
  transform: translateX(-4px);
}
.site-footer__link:hover {
  color: var(--accent-neon);
  transform: translateX(4px);
}
.site-footer__link:hover::before {
  opacity: 1;
  transform: translateX(0);
}
.site-footer__contact li {
  display: flex;
  flex-direction: column;
  gap: 2px;
  font-size: 0.86rem;
  line-height: 1.55;
}
.site-footer__contact-label {
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.16em;
  color: var(--accent-gold);
  text-transform: uppercase;
}
.site-footer__contact-value {
  color: var(--text-primary);
  word-break: break-all;
}
.site-footer__bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  padding-top: 20px;
  border-top: 1px solid rgba(48, 168, 255, 0.1);
  font-size: 0.74rem;
  font-family: var(--font-mono);
  color: var(--text-muted);
  letter-spacing: 0.05em;
}
.site-footer__icp {
  color: var(--text-muted);
}
.site-footer__copy {
  color: var(--text-muted);
}

/* ---------- 19. 页脚响应式 ---------- */
@media (max-width: 980px) {
  .site-footer__top {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
  .site-footer__about {
    grid-column: 1 / -1;
  }
}
@media (max-width: 560px) {
  .site-footer {
    padding-top: 40px;
  }
  .site-footer__top {
    grid-template-columns: 1fr;
    gap: 28px;
  }
  .site-footer__about {
    grid-column: auto;
  }
  .site-footer__heading {
    margin-bottom: 12px;
  }
  .site-footer__bottom {
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
    font-size: 0.68rem;
  }
}

/* ---------- 20. 全站过渡与状态 ---------- */
.main-content a:not(.btn):not(.breadcrumb__link):not(.site-footer__link):not(.site-nav__link):not(.brand) {
  color: #1a6b4a;
  text-decoration: underline;
  text-decoration-color: var(--accent-neon);
  text-underline-offset: 4px;
  text-decoration-thickness: 1.5px;
  transition: color var(--t-fast), text-decoration-color var(--t-fast);
}
.main-content a:not(.btn):not(.breadcrumb__link):not(.site-footer__link):not(.site-nav__link):not(.brand):hover {
  color: #00754a;
  text-decoration-color: var(--accent-gold);
}

/* ---------- 21. 焦点与可访问性 ---------- */
a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--accent-gold);
  outline-offset: 3px;
  border-radius: 4px;
}
.site-nav__link:focus-visible {
  outline-color: var(--accent-neon);
}

/* ---------- 22. 减少动态效果 ---------- */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .status-light--pulse {
    animation: none !important;
  }
  .site-nav__link,
  .site-footer__link,
  .btn,
  .header-search,
  .nav-toggle__bar {
    transition: none !important;
  }
}