/* =========================================================
   四季体育 4J Sports — /assets/site.css
   共享样式：Reset、设计变量、中文排版、页头、页脚、通用组件
   ========================================================= */

/* ---------- 01 变量与重置 ---------- */
:root {
  --c-base: #0B3D2E;
  --c-accent: #FF6B35;
  --c-gold: #FFD700;
  --c-ivory: #F5F1E8;
  --c-ink: #071F18;
  --c-mid: #0F4C3E;
  --c-mint: #C8F2E3;
  --c-ochre: #B7B3A8;

  --header-w: 280px;
  --max-wide: 1440px;
  --max-normal: 1200px;
  --max-narrow: 880px;
  --gutter: clamp(20px, 4vw, 48px);
  --radius: 6px;
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);

  --font-body: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --font-head: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
  --font-mono: "SFMono-Regular", "SF Mono", "JetBrains Mono", "Roboto Mono", Consolas, "Courier New", monospace;
}

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  background: var(--c-ink);
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  background: var(--c-base);
  color: var(--c-ivory);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-head);
  font-weight: 900;
  line-height: 1.25;
  color: var(--c-ivory);
  text-wrap: balance;
}

p { text-wrap: pretty; }

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

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

ul, ol {
  list-style: none;
}

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

button {
  cursor: pointer;
  background: none;
  border: none;
  padding: 0;
}

::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: var(--c-ink); }
::-webkit-scrollbar-thumb { background: var(--c-mid); border-radius: 8px; border: 2px solid var(--c-ink); }
::-webkit-scrollbar-thumb:hover { background: var(--c-accent); }

::selection { background: var(--c-accent); color: var(--c-ink); }

/* ---------- 02 焦点与无障碍 ---------- */
:focus-visible {
  outline: 2px solid var(--c-gold);
  outline-offset: 3px;
  border-radius: 2px;
}

.skip-link {
  position: fixed;
  top: 10px;
  left: 10px;
  z-index: 5000;
  transform: translateY(-200%);
  background: var(--c-gold);
  color: var(--c-ink);
  font-weight: 700;
  font-size: 14px;
  padding: 10px 18px;
  border-radius: 4px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.35);
  transition: transform 0.25s var(--ease);
}

.skip-link:focus { transform: translateY(0); }

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

/* ---------- 03 滚动进度条 ---------- */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  z-index: 3000;
  background: linear-gradient(90deg, var(--c-accent) 0%, var(--c-gold) 100%);
  transform: scaleX(0);
  transform-origin: 0 50%;
  pointer-events: none;
}

/* ---------- 04 容器与网格 ---------- */
#main-content {
  display: block;
  min-height: 60vh;
}

.container {
  width: min(100% - var(--gutter) * 2, var(--max-normal));
  margin-inline: auto;
}

.container--wide { max-width: var(--max-wide); }
.container--narrow { max-width: var(--max-narrow); }

.section { padding: clamp(48px, 8vw, 96px) 0; }
.section--tight { padding: clamp(28px, 4vw, 48px) 0; }

.grid {
  display: grid;
  gap: 24px;
}

.grid > * { min-width: 0; }

.grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid--4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.grid--aside { grid-template-columns: minmax(0, 1fr) 280px; }

/* ---------- 05 按钮与标签 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 22px;
  background: var(--c-accent);
  color: var(--c-ink);
  font-weight: 700;
  font-size: 15px;
  border-radius: 4px;
  border: 1px solid var(--c-accent);
  transition: background 0.25s var(--ease), border-color 0.25s var(--ease), color 0.25s var(--ease), transform 0.25s var(--ease), box-shadow 0.25s var(--ease);
}

.btn:hover {
  background: var(--c-gold);
  border-color: var(--c-gold);
  box-shadow: 0 6px 20px rgba(255, 107, 53, 0.25);
  transform: translateY(-1px);
}

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

.btn--ghost {
  background: transparent;
  color: var(--c-mint);
  border-color: rgba(200, 242, 227, 0.4);
}

.btn--ghost:hover {
  background: rgba(200, 242, 227, 0.08);
  border-color: var(--c-mint);
  color: var(--c-ivory);
  box-shadow: none;
}

.btn--dark {
  background: var(--c-ink);
  border-color: var(--c-ink);
  color: var(--c-ivory);
}

.btn--dark:hover {
  background: var(--c-mid);
  border-color: var(--c-mid);
  color: var(--c-gold);
  box-shadow: none;
  transform: none;
}

.btn--sm {
  padding: 8px 14px;
  font-size: 13px;
}

.tag {
  display: inline-flex;
  align-items: center;
  padding: 4px 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--c-mint);
  border: 1px solid rgba(200, 242, 227, 0.3);
  border-radius: 999px;
  background: rgba(15, 76, 62, 0.45);
  white-space: nowrap;
}

.tag--accent {
  color: var(--c-accent);
  border-color: rgba(255, 107, 53, 0.45);
  background: rgba(255, 107, 53, 0.08);
}

.tag--gold {
  color: var(--c-gold);
  border-color: rgba(255, 215, 0, 0.35);
  background: rgba(255, 215, 0, 0.06);
}

/* ---------- 06 排版组件 ---------- */
.kicker {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--c-accent);
  margin-bottom: 12px;
}

.chapter {
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin: 56px 0 24px;
}

.chapter__no {
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--c-accent);
}

.chapter__title {
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(24px, 3.4vw, 40px);
  line-height: 1.2;
}

.chapter__rule {
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, rgba(255, 107, 53, 0.5), rgba(255, 107, 53, 0));
  align-self: center;
}

.lede {
  font-size: clamp(16px, 1.6vw, 18px);
  line-height: 1.85;
  color: rgba(245, 245, 232, 0.85);
  max-width: 68ch;
}

.marginalia {
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.8;
  color: var(--c-ochre);
  border-left: 2px solid var(--c-accent);
  padding-left: 14px;
  margin: 16px 0;
}

.page-title {
  font-size: clamp(32px, 5.5vw, 64px);
  font-weight: 900;
  letter-spacing: -0.01em;
  line-height: 1.05;
}

.page-sub {
  font-size: clamp(15px, 1.6vw, 18px);
  color: rgba(245, 245, 232, 0.75);
}

.rule {
  border: 0;
  height: 1px;
  background: linear-gradient(90deg, rgba(255, 107, 53, 0.4), transparent 80%);
  margin: 40px 0;
}

/* ---------- 07 图片容器 ---------- */
.media-frame {
  position: relative;
  overflow: hidden;
  background: linear-gradient(135deg, var(--c-mid), var(--c-ink));
  border: 1px solid rgba(245, 245, 232, 0.12);
  border-radius: var(--radius);
}

.media-frame::before {
  content: "";
  display: block;
  padding-top: 62.5%;
}

.media-frame img,
.media-frame__cover {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.media-frame--wide::before { padding-top: 56.25%; }
.media-frame--portrait::before { padding-top: 125%; }
.media-frame--square::before { padding-top: 100%; }

.media-frame__placeholder {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: linear-gradient(135deg, rgba(15, 76, 62, 0.6), rgba(7, 31, 24, 0.8));
  color: var(--c-ochre);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.media-frame__placeholder::before {
  content: "4J";
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  background: var(--c-accent);
  color: var(--c-ink);
  font-weight: 800;
  font-size: 18px;
  border-radius: 4px 1px 4px 1px;
}

/* ---------- 08 卡片与数据表 ---------- */
.card {
  background: var(--c-mid);
  border: 1px solid rgba(245, 245, 232, 0.1);
  border-radius: var(--radius);
  padding: 24px;
  transition: transform 0.3s var(--ease), border-color 0.3s var(--ease), background 0.3s var(--ease);
}

.card:hover {
  transform: translateY(-4px);
  border-color: rgba(255, 107, 53, 0.45);
}

.card--light {
  background: var(--c-ivory);
  color: var(--c-ink);
}

.card--light h1,
.card--light h2,
.card--light h3,
.card--light h4,
.card--light h5,
.card--light h6 { color: var(--c-ink); }

.card--flat {
  background: transparent;
  border-style: dashed;
}

.card--flat:hover { transform: none; }

.card__title {
  font-size: 20px;
  margin-bottom: 8px;
}

.card__meta {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--c-accent);
  margin-bottom: 12px;
}

.data-table-wrap {
  overflow-x: auto;
  border: 1px solid rgba(245, 245, 232, 0.1);
  border-radius: var(--radius);
  background: rgba(7, 31, 24, 0.35);
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-family: var(--font-mono);
  font-size: 14px;
}

.data-table th,
.data-table td {
  padding: 12px 16px;
  text-align: left;
  border-bottom: 1px solid rgba(245, 245, 232, 0.08);
  white-space: nowrap;
}

.data-table th {
  background: rgba(255, 107, 53, 0.12);
  color: var(--c-accent);
  font-size: 12px;
  letter-spacing: 0.1em;
}

.data-table tbody tr:hover { background: rgba(255, 107, 53, 0.06); }
.data-table .num { color: var(--c-gold); font-weight: 700; text-align: right; }

/* ---------- 09 标签页与提示 ---------- */
.tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  padding: 6px;
  background: rgba(7, 31, 24, 0.5);
  border: 1px solid rgba(245, 245, 232, 0.12);
  border-radius: 999px;
  width: fit-content;
  max-width: 100%;
  overflow-x: auto;
}

.tab-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 20px;
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
  color: var(--c-ochre);
  white-space: nowrap;
  transition: background 0.25s var(--ease), color 0.25s var(--ease);
}

.tab-btn:hover { color: var(--c-ivory); }

.tab-btn[aria-selected="true"] {
  background: var(--c-accent);
  color: var(--c-ink);
}

.tab-panel { margin-top: 20px; }
.tab-panel[hidden] { display: none; }

.callout {
  padding: 18px 20px;
  border-left: 3px solid var(--c-accent);
  background: rgba(200, 242, 227, 0.08);
  color: rgba(245, 245, 232, 0.85);
  font-size: 14px;
  border-radius: 0 var(--radius) var(--radius) 0;
}

.callout--gold {
  border-left-color: var(--c-gold);
  background: rgba(255, 215, 0, 0.08);
}

/* ---------- 10 面包屑、分页、比分牌 ---------- */
.breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--c-ochre);
}

.breadcrumbs a { color: var(--c-mint); transition: color 0.2s; }
.breadcrumbs a:hover { color: var(--c-gold); }
.breadcrumbs__sep { color: var(--c-accent); }
.breadcrumbs [aria-current="page"] { color: var(--c-ivory); }

.pagination {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.pagination__item {
  min-width: 40px;
  height: 40px;
  padding: 0 12px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(245, 245, 232, 0.2);
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--c-ochre);
  transition: border-color 0.2s, color 0.2s, background 0.2s;
}

.pagination__item:hover {
  color: var(--c-ivory);
  border-color: var(--c-accent);
}

.pagination__item[aria-current="page"] {
  background: var(--c-accent);
  color: var(--c-ink);
  border-color: var(--c-accent);
  font-weight: 700;
}

.score-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  background: var(--c-ink);
  border: 1px solid rgba(255, 107, 53, 0.5);
  border-radius: 4px;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 18px;
  line-height: 1;
  color: var(--c-gold);
}

.score-chip__team { font-size: 12px; color: var(--c-ivory); }
.score-chip__sep { color: var(--c-ochre); }

/* ---------- 11 页头导航 ---------- */
.site-header { display: block; }

.site-nav-wrap {
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  width: var(--header-w);
  z-index: 220;
  display: flex;
  flex-direction: column;
  padding: 28px 22px 20px;
  overflow-y: auto;
  overscroll-behavior: contain;
  scrollbar-width: thin;
  scrollbar-color: var(--c-ochre) transparent;
  background:
    linear-gradient(165deg, rgba(255, 107, 53, 0.08) 0%, transparent 34%),
    linear-gradient(180deg, var(--c-mid) 0%, var(--c-base) 55%, var(--c-ink) 100%);
  border-right: 1px solid rgba(255, 107, 53, 0.25);
}

.site-brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
}

.site-brand:hover .brand-mark { transform: rotate(-4deg); }

.brand-mark {
  display: inline-grid;
  place-items: center;
  width: 46px;
  height: 46px;
  flex: 0 0 auto;
  background: var(--c-accent);
  color: var(--c-ink);
  font-family: var(--font-mono);
  font-size: 19px;
  font-weight: 800;
  letter-spacing: -0.02em;
  border-radius: 6px 2px 6px 2px;
  box-shadow: 3px 3px 0 rgba(255, 215, 0, 0.4);
  transition: transform 0.25s var(--ease);
}

.brand-mark--sm {
  width: 36px;
  height: 36px;
  font-size: 15px;
  box-shadow: 2px 2px 0 rgba(255, 215, 0, 0.4);
}

.brand-text {
  font-family: var(--font-head);
  font-weight: 900;
  font-size: 22px;
  letter-spacing: 0.06em;
  color: var(--c-ivory);
}

.nav-head {
  position: relative;
  padding-bottom: 20px;
  margin-bottom: 18px;
  border-bottom: 1px solid rgba(255, 107, 53, 0.25);
}

.nav-head::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 44px;
  height: 3px;
  background: var(--c-accent);
  border-radius: 2px;
}

.nav-head::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 72px;
  height: 40px;
  background: repeating-linear-gradient(-45deg, rgba(255, 107, 53, 0.16) 0 2px, transparent 2px 8px);
  clip-path: polygon(0 0, 100% 0, 100% 100%, 18px 100%);
  pointer-events: none;
}

.nav-head__sub {
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.28em;
  color: var(--c-ochre);
  text-transform: uppercase;
}

.primary-nav { margin-top: 6px; }

.nav-list {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.nav-item { position: relative; }

.nav-link {
  position: relative;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 11px 14px;
  color: rgba(245, 245, 232, 0.72);
  font-size: 15px;
  font-weight: 600;
  border-radius: 0 4px 4px 0;
  transition: background 0.25s var(--ease), color 0.25s var(--ease);
}

.nav-link::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  bottom: 8px;
  width: 3px;
  background: var(--c-accent);
  border-radius: 2px;
  transform: scaleY(0);
  transition: transform 0.25s var(--ease);
}

.nav-link:hover {
  background: rgba(255, 107, 53, 0.08);
  color: var(--c-ivory);
}

.nav-link:hover::before { transform: scaleY(1); }

.nav-index {
  min-width: 26px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--c-ochre);
  transition: color 0.25s;
}

.nav-name { display: inline-block; padding: 2px 0; }

.nav-link[aria-current="page"] {
  background: linear-gradient(90deg, rgba(255, 107, 53, 0.2), transparent 85%);
  color: var(--c-ivory);
}

.nav-link[aria-current="page"]::before {
  transform: scaleY(1);
  background: var(--c-gold);
}

.nav-link[aria-current="page"] .nav-index { color: var(--c-gold); }

.nav-quick {
  margin-top: auto;
  padding-top: 28px;
}

.nav-quick__label {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--c-ochre);
  margin-bottom: 12px;
}

.quick-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.quick-item {
  padding: 4px 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--c-mint);
  border: 1px dashed rgba(200, 242, 227, 0.35);
  border-radius: 999px;
  background: rgba(15, 76, 62, 0.25);
}

.nav-meta {
  margin-top: 18px;
  padding-top: 14px;
  border-top: 1px solid rgba(245, 245, 232, 0.08);
  display: flex;
  flex-direction: column;
  gap: 2px;
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.22em;
  line-height: 1.7;
  color: rgba(183, 179, 168, 0.65);
  text-transform: uppercase;
}

.nav-meta__line { display: block; }

.nav-backdrop { display: none; }

.mobile-bar { display: none; }

.mobile-brand {
  display: flex;
  align-items: center;
  gap: 10px;
}

.nav-toggle {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 14px;
  background: rgba(255, 107, 53, 0.12);
  border: 1px solid rgba(255, 107, 53, 0.4);
  border-radius: 6px;
  color: var(--c-ivory);
  font-weight: 700;
  font-size: 14px;
  transition: background 0.25s, border-color 0.25s;
}

.nav-toggle:hover {
  background: rgba(255, 107, 53, 0.22);
  border-color: var(--c-accent);
}

.nav-toggle__icon {
  position: relative;
  width: 18px;
  height: 14px;
}

.nav-toggle__line {
  position: absolute;
  left: 0;
  width: 18px;
  height: 2px;
  border-radius: 2px;
  background: var(--c-accent);
  transition: transform 0.3s var(--ease), opacity 0.3s var(--ease), top 0.3s var(--ease);
}

.nav-toggle__line:nth-child(1) { top: 0; }
.nav-toggle__line:nth-child(2) { top: 6px; }
.nav-toggle__line:nth-child(3) { top: 12px; }

.nav-toggle[aria-expanded="true"] .nav-toggle__line:nth-child(1) {
  top: 6px;
  transform: rotate(45deg);
}

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

.nav-toggle[aria-expanded="true"] .nav-toggle__line:nth-child(3) {
  top: 6px;
  transform: rotate(-45deg);
}

.nav-toggle__text { font-size: 13px; }

/* ---------- 12 页脚 ---------- */
.site-footer {
  background: var(--c-ink);
  border-top: 1px solid rgba(255, 107, 53, 0.2);
  padding: 60px 0 0;
  color: rgba(245, 245, 232, 0.8);
}

.footer-top {
  display: grid;
  grid-template-columns: 2fr 1.3fr 1fr 1fr;
  gap: clamp(28px, 4vw, 48px);
  max-width: var(--max-wide);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

.footer-brand-col {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  width: fit-content;
}

.footer-brand:hover .brand-mark { transform: rotate(-4deg); }

.footer-about {
  color: rgba(245, 245, 232, 0.65);
  font-size: 14px;
  max-width: 320px;
}

.footer-col {
  display: flex;
  flex-direction: column;
}

.footer-col__title {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--c-accent);
  margin-bottom: 16px;
}

.footer-links,
.footer-contact {
  display: flex;
  flex-direction: column;
  gap: 10px;
  font-size: 14px;
}

.footer-links a {
  color: rgba(245, 245, 232, 0.75);
  transition: color 0.2s, padding-left 0.2s;
}

.footer-links a:hover {
  color: var(--c-gold);
  padding-left: 6px;
}

.footer-contact__item {
  line-height: 1.7;
  color: rgba(245, 245, 232, 0.65);
}

.footer-contact__item a {
  color: var(--c-mint);
  border-bottom: 1px dashed rgba(200, 242, 227, 0.3);
}

.footer-contact__item a:hover {
  color: var(--c-gold);
  border-bottom-color: var(--c-gold);
}

.footer-slash {
  margin-top: 48px;
  height: 4px;
  background: repeating-linear-gradient(-45deg, var(--c-accent) 0 12px, transparent 12px 24px);
  opacity: 0.7;
}

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  align-items: center;
  justify-content: space-between;
  max-width: var(--max-wide);
  margin: 0 auto;
  padding: 20px var(--gutter) 40px;
  font-size: 13px;
  color: rgba(183, 179, 168, 0.7);
}

.footer-note {
  flex-basis: 100%;
  font-size: 12px;
  color: rgba(183, 179, 168, 0.65);
}

.footer-legal {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
}

.footer-copy,
.footer-icp {
  font-family: var(--font-mono);
  font-size: 12px;
}

.footer-icp {
  padding: 2px 8px;
  border: 1px solid rgba(183, 179, 168, 0.3);
  border-radius: 4px;
}

/* ---------- 13 响应式 ---------- */
@media (min-width: 961px) {
  body {
    margin-left: var(--header-w);
    padding-top: 0;
  }
}

@media (max-width: 1100px) and (min-width: 961px) {
  .footer-top { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 960px) {
  body {
    margin-left: 0;
    padding-top: 60px;
    background: var(--c-base);
  }

  .mobile-bar {
    display: flex;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 60px;
    align-items: center;
    justify-content: space-between;
    padding: 0 14px 0 18px;
    background: rgba(7, 31, 24, 0.94);
    border-bottom: 1px solid rgba(255, 107, 53, 0.3);
    z-index: 240;
  }

  .site-nav-wrap {
    width: min(320px, 86vw);
    transform: translateX(-105%);
    visibility: hidden;
    transition: transform 0.32s var(--ease), visibility 0.32s;
    box-shadow: 10px 0 30px rgba(0, 0, 0, 0.3);
  }

  .site-nav-wrap[data-open] {
    transform: translateX(0);
    visibility: visible;
  }

  .nav-backdrop {
    display: block;
    position: fixed;
    inset: 0;
    z-index: 230;
    background: rgba(7, 31, 24, 0.66);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.32s var(--ease), visibility 0.32s;
  }

  .nav-backdrop[data-open] {
    opacity: 1;
    visibility: visible;
  }

  .nav-quick { margin-top: 32px; }

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

@media (max-width: 760px) {
  .grid--2,
  .grid--3,
  .grid--4 { grid-template-columns: 1fr; }
}

@media (min-width: 761px) and (max-width: 1024px) {
  .grid--3,
  .grid--4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 640px) {
  .footer-top { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; align-items: flex-start; }
  .footer-slash { margin-top: 40px; }
  .tabs { width: 100%; }
  .tab-btn { flex: 1; justify-content: center; }
}

/* ---------- 14 减少动效 ---------- */
@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;
    transition-delay: 0ms !important;
  }

  .nav-toggle__line { transition: none; }
}