/* ============================================================
   01体育主站 · 共享样式 /assets/site.css
   结构：变量 → reset → 中文排版 → 通用组件 → 页头 → 页脚 → 响应式
   ============================================================ */

:root {
  --navy: #0B1F3A;
  --navy-2: #12335C;
  --orange: #FF6B1A;
  --orange-soft: #FFB37A;
  --cyan: #19D3C5;
  --cyan-mist: #C8F4EF;
  --paper: #F4F5F2;
  --gray: #D8DEE6;
  --ink: #121417;
  --green: #2E9E68;
  --amber: #D98A00;

  --font-display: "Source Han Serif SC", "Noto Serif SC", "Songti SC", Georgia, "Times New Roman", serif;
  --font-sans: "Source Han Sans SC", "Noto Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;

  --line: 1px solid var(--gray);
  --hairline-light: 1px solid rgba(200, 244, 239, 0.16);
  --shadow-card: 0 1px 0 rgba(18, 20, 23, 0.03), 0 22px 44px -36px rgba(11, 31, 58, 0.6);
  --radius: 3px;
  --page-pad: 18px;
}

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 132px;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.65;
  letter-spacing: 0.005em;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2, h3, h4, h5, p, ul, ol, dl, figure, blockquote { margin: 0; }
ul, ol { list-style: none; padding: 0; }
img, svg, video { max-width: 100%; display: block; }
a { color: inherit; }
button { font: inherit; color: inherit; }
table { border-collapse: collapse; }
::selection { background: var(--cyan-mist); color: var(--navy); }

:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

/* ---------- 中文排版 ---------- */
h1 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(34px, 5.4vw, 58px);
  line-height: 1.1;
  letter-spacing: -0.01em;
  color: var(--navy);
}

h2 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(24px, 3.4vw, 34px);
  line-height: 1.2;
  color: var(--navy);
}

h3 {
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: clamp(18px, 2vw, 22px);
  line-height: 1.32;
  letter-spacing: 0.01em;
  color: var(--navy);
}

h4 {
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 15px;
  line-height: 1.4;
  letter-spacing: 0.04em;
  color: var(--navy);
}

strong { font-weight: 700; }

/* ---------- 布局容器 ---------- */
.container {
  width: min(1240px, 100% - var(--page-pad) * 2);
  margin-inline: auto;
}

.container--narrow {
  width: min(760px, 100% - var(--page-pad) * 2);
  margin-inline: auto;
}

.section { padding-block: clamp(40px, 6vw, 80px); }

.section-head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 26px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: #4A5766;
}

.eyebrow::before {
  content: "";
  width: 18px;
  height: 2px;
  background: var(--orange);
}

.lede {
  font-size: 16px;
  line-height: 1.75;
  color: #3B4A5C;
  max-width: 62ch;
}

.divider {
  border: 0;
  height: 1px;
  background: var(--gray);
  margin: 0;
}

/* ---------- 网格 ---------- */
.grid {
  display: grid;
  gap: 18px;
  grid-template-columns: minmax(0, 1fr);
}

.grid--bento {
  display: grid;
  gap: 18px;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 240px), 1fr));
}

.grid--split {
  display: grid;
  gap: 24px;
  grid-template-columns: minmax(0, 1fr);
}

.span-4, .span-6, .span-8 { grid-column: span 1; }

@media (min-width: 900px) {
  .grid--split { grid-template-columns: minmax(0, 1.45fr) minmax(0, 1fr); }
  .grid { grid-template-columns: repeat(12, minmax(0, 1fr)); }
  .span-4 { grid-column: span 4; }
  .span-6 { grid-column: span 6; }
  .span-8 { grid-column: span 8; }
}

/* ---------- 按钮与链接 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 18px;
  border: 1px solid transparent;
  border-radius: 2px;
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.04em;
  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;
}

.btn--primary {
  background: var(--orange);
  border-color: var(--orange);
  color: var(--navy);
}

.btn--primary:hover { background: #FF8340; border-color: #FF8340; }
.btn--primary:active { transform: translateY(1px); }

.btn--ghost {
  background: transparent;
  border-color: rgba(200, 244, 239, 0.34);
  color: #EAF0F8;
}

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

.btn--quiet {
  background: var(--navy);
  border-color: var(--navy);
  color: #FFFFFF;
}

.btn--quiet:hover { background: var(--navy-2); border-color: var(--navy-2); }

.link-more {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13.5px;
  font-weight: 600;
  text-decoration: none;
  color: var(--navy);
  border-bottom: 1px solid rgba(11, 31, 58, 0.24);
  padding-bottom: 2px;
}

.link-more::after {
  content: "→";
  color: var(--orange);
  transition: transform 0.2s ease;
}

.link-more:hover::after { transform: translateX(3px); }

/* ---------- 面板 / Bento 卡 ---------- */
.panel {
  position: relative;
  background: #FFFFFF;
  border: var(--line);
  border-radius: var(--radius);
  padding: 22px;
  box-shadow: var(--shadow-card);
}

.panel--dark {
  background: var(--navy);
  border-color: rgba(200, 244, 239, 0.18);
  color: #EAF0F8;
}

.panel--dark h2,
.panel--dark h3,
.panel--dark h4 { color: #FFFFFF; }

.panel__label {
  display: block;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: #6B7787;
  margin-bottom: 10px;
}

.panel--dark .panel__label { color: rgba(25, 211, 197, 0.85); }

.panel__title {
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: clamp(17px, 1.8vw, 20px);
  line-height: 1.35;
  color: var(--navy);
  margin-bottom: 8px;
}

.panel--dark .panel__title { color: #FFFFFF; }

/* ---------- 图片容器（页面阶段填图） ---------- */
.media {
  position: relative;
  display: block;
  overflow: hidden;
  border-radius: var(--radius);
  border: 1px solid rgba(11, 31, 58, 0.16);
  aspect-ratio: 16 / 10;
  background-color: var(--navy);
  background-image:
    linear-gradient(140deg, rgba(11, 31, 58, 0.94), rgba(18, 51, 92, 0.86) 62%, rgba(25, 211, 197, 0.34)),
    repeating-linear-gradient(115deg, rgba(255, 255, 255, 0.1) 0 2px, transparent 2px 20px);
}

.media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.media--wide { aspect-ratio: 21 / 9; }
.media--tall { aspect-ratio: 4 / 5; }

.media__badge {
  position: absolute;
  left: 14px;
  bottom: 14px;
  padding: 6px 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: #EAF0F8;
  background: rgba(11, 31, 58, 0.84);
  border-left: 2px solid var(--orange);
}

/* ---------- 标签 / 数字 / 提示 ---------- */
.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 8px;
  border: var(--line);
  border-radius: 2px;
  background: #FFFFFF;
  color: #3B4A5C;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  line-height: 1.4;
}

.tag--orange { background: rgba(255, 107, 26, 0.12); border-color: rgba(255, 107, 26, 0.45); color: #8A3600; }
.tag--cyan { background: rgba(25, 211, 197, 0.14); border-color: rgba(25, 211, 197, 0.5); color: #0A5A55; }
.tag--green { background: rgba(46, 158, 104, 0.12); border-color: rgba(46, 158, 104, 0.45); color: #1D6A46; }
.tag--amber { background: rgba(217, 138, 0, 0.14); border-color: rgba(217, 138, 0, 0.45); color: #7A4E00; }

.stat { display: grid; gap: 2px; }

.stat__value {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-weight: 700;
  font-size: clamp(24px, 3vw, 34px);
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--navy);
}

.stat__label {
  font-size: 12px;
  letter-spacing: 0.08em;
  color: #5B6673;
}

.panel--dark .stat__value { color: var(--cyan); }
.panel--dark .stat__label { color: rgba(234, 240, 248, 0.66); }

.data-num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.01em;
}

.notice {
  padding: 16px 18px;
  border: 1px solid rgba(25, 211, 197, 0.5);
  border-left: 3px solid var(--cyan);
  border-radius: var(--radius);
  background: var(--cyan-mist);
  color: #0B3A38;
  font-size: 14px;
  line-height: 1.7;
}

.notice a { color: #08504B; }

/* ---------- 面包屑 / 长文 ---------- */
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-bottom: 20px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.06em;
  color: #5B6673;
}

.breadcrumb li { display: flex; align-items: center; gap: 8px; }

.breadcrumb li::after {
  content: "/";
  color: var(--gray);
}

.breadcrumb li:last-child::after { content: ""; }

.breadcrumb a {
  color: #3B4A5C;
  text-decoration: none;
  border-bottom: 1px solid transparent;
}

.breadcrumb a:hover { color: var(--navy); border-bottom-color: var(--orange); }

.breadcrumb [aria-current="page"] { color: var(--navy); font-weight: 600; }

.prose {
  max-width: 68ch;
  font-size: 15.5px;
  line-height: 1.8;
  color: #26303B;
}

.prose h2, .prose h3 { margin-top: 34px; margin-bottom: 10px; }
.prose p { margin-bottom: 16px; }
.prose ul { list-style: disc; padding-left: 1.3em; margin-bottom: 16px; display: grid; gap: 6px; }
.prose a { color: var(--navy-2); text-decoration: underline; text-decoration-color: var(--orange-soft); text-underline-offset: 3px; }

/* ---------- 跳转链接 ---------- */
.skip-link {
  position: fixed;
  top: 8px;
  left: 8px;
  z-index: 200;
  padding: 10px 16px;
  border-radius: 2px;
  background: var(--orange);
  color: var(--navy);
  font-size: 13px;
  font-weight: 700;
  text-decoration: none;
  transform: translateY(-180%);
  transition: transform 0.18s ease;
}

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

/* ---------- 页头 ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 90;
  background: var(--navy);
  color: #EAF0F8;
  border-bottom: 1px solid rgba(200, 244, 239, 0.14);
}

.site-header__inner {
  width: min(1240px, 100% - var(--page-pad) * 2);
  margin-inline: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  min-height: 70px;
  padding-block: 12px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
  text-decoration: none;
  color: inherit;
}

.brand__mark {
  flex: 0 0 auto;
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border-radius: 3px;
  background: var(--cyan);
  color: var(--navy);
  font-family: var(--font-mono);
  font-size: 17px;
  font-weight: 700;
  letter-spacing: 0.02em;
  box-shadow: 0 10px 22px -14px rgba(25, 211, 197, 0.95);
}

.brand__text {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
  line-height: 1.15;
}

.brand__name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 20px;
  letter-spacing: 0.05em;
  color: #FFFFFF;
}

.brand__descriptor {
  font-size: 11px;
  letter-spacing: 0.16em;
  color: rgba(234, 240, 248, 0.6);
  white-space: nowrap;
}

.header-tools {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-left: auto;
}

.quick-list {
  display: none;
  align-items: center;
  gap: 6px;
  margin: 0;
}

.quick-link {
  display: inline-block;
  padding: 6px 10px;
  border: 1px solid rgba(200, 244, 239, 0.2);
  border-radius: 2px;
  color: rgba(234, 240, 248, 0.82);
  font-size: 12px;
  letter-spacing: 0.06em;
  text-decoration: none;
  transition: color 0.2s ease, border-color 0.2s ease, background-color 0.2s ease;
}

.quick-link:hover {
  color: var(--cyan);
  border-color: var(--cyan);
  background: rgba(25, 211, 197, 0.08);
}

.header-cta {
  padding: 9px 15px;
  font-size: 13px;
  letter-spacing: 0.08em;
  white-space: nowrap;
}

.nav-toggle {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 9px 11px;
  border: 1px solid rgba(200, 244, 239, 0.28);
  border-radius: 2px;
  background: transparent;
  color: #EAF0F8;
  cursor: pointer;
  transition: border-color 0.2s ease, color 0.2s ease;
}

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

.nav-toggle__label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
}

.nav-toggle__bars {
  display: grid;
  gap: 3px;
}

.nav-toggle__bars span {
  display: block;
  width: 16px;
  height: 2px;
  background: currentColor;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:nth-child(1) { transform: translateY(5px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:nth-child(3) { transform: translateY(-5px) rotate(-45deg); }

.site-nav {
  display: none;
  background: var(--navy-2);
  border-top: 1px solid rgba(200, 244, 239, 0.16);
  max-height: calc(100vh - 76px);
  overflow-y: auto;
}

.site-nav[data-open] {
  display: block;
  animation: nav-in 0.22s ease both;
}

@keyframes nav-in {
  from { opacity: 0; transform: translateY(-6px); }
  to { opacity: 1; transform: none; }
}

.site-nav__inner {
  width: min(1240px, 100% - var(--page-pad) * 2);
  margin-inline: auto;
  padding: 8px 0 16px;
}

.site-nav__meta { display: none; }

.site-nav__list {
  display: flex;
  flex-direction: column;
  margin: 0;
}

.site-nav__link {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 13px 4px;
  border-bottom: 1px solid rgba(200, 244, 239, 0.1);
  color: #E7EEF8;
  font-size: 15px;
  letter-spacing: 0.02em;
  text-decoration: none;
  transition: color 0.2s ease, background-color 0.2s ease;
}

.site-nav__link:hover { color: var(--cyan); }

.site-nav__idx {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: rgba(25, 211, 197, 0.68);
}

.site-nav__link[aria-current="page"] { color: #FFFFFF; }
.site-nav__link[aria-current="page"] .site-nav__idx { color: var(--orange); }

.site-progress {
  height: 2px;
  background: rgba(200, 244, 239, 0.14);
}

.site-progress__bar {
  display: block;
  width: 100%;
  height: 100%;
  transform: scaleX(0);
  transform-origin: 0 50%;
  background: linear-gradient(90deg, var(--cyan), var(--orange));
  transition: transform 0.12s linear;
}

/* ---------- 页脚 ---------- */
.site-footer {
  position: relative;
  background: var(--navy);
  color: #DCE6F2;
  padding-top: 3px;
}

.site-footer::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 3px;
  background: linear-gradient(90deg, var(--orange) 0 16%, var(--cyan) 16% 26%, rgba(200, 244, 239, 0.22) 26% 100%);
}

.site-footer__inner {
  width: min(1240px, 100% - var(--page-pad) * 2);
  margin-inline: auto;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 34px;
  padding-block: 44px 30px;
}

.brand--footer .brand__name { color: #FFFFFF; }
.brand--footer .brand__descriptor { color: rgba(220, 230, 242, 0.55); }

.footer-brand__desc {
  margin-top: 16px;
  max-width: 36ch;
  font-size: 13px;
  line-height: 1.75;
  color: rgba(220, 230, 242, 0.7);
}

.footer-facts {
  display: grid;
  gap: 8px;
  margin-top: 18px;
}

.footer-facts__item {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px;
  font-size: 13px;
  line-height: 1.6;
  color: rgba(220, 230, 242, 0.88);
}

.footer-facts__label {
  flex: 0 0 auto;
  padding: 1px 6px;
  border: 1px solid rgba(25, 211, 197, 0.45);
  border-radius: 2px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  color: var(--cyan);
}

.footer-facts__value {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.01em;
  word-break: break-word;
}

.footer-cols {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 28px 20px;
}

.footer-col__title {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.2em;
  color: rgba(200, 244, 239, 0.62);
}

.footer-col__title::before {
  content: "";
  width: 6px;
  height: 6px;
  background: var(--orange);
  border-radius: 1px;
}

.footer-col__list {
  display: grid;
  gap: 9px;
}

.footer-link {
  display: inline-block;
  font-size: 14px;
  color: #DCE6F2;
  text-decoration: none;
  transition: color 0.2s ease, transform 0.2s ease;
}

.footer-link:hover { color: var(--cyan); transform: translateX(2px); }

.footer-meta {
  width: min(1240px, 100% - var(--page-pad) * 2);
  margin-inline: auto;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 8px 24px;
  padding-block: 16px 26px;
  border-top: 1px solid rgba(200, 244, 239, 0.14);
}

.footer-meta__legal {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: rgba(220, 230, 242, 0.62);
}

.footer-meta__detail {
  font-size: 12px;
  color: rgba(220, 230, 242, 0.5);
}

/* ---------- 显现（需 JS 添加 .js） ---------- */
.js [data-reveal] {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.js [data-reveal].is-visible {
  opacity: 1;
  transform: none;
}

/* ---------- 响应式 ---------- */
@media (min-width: 540px) {
  :root { --page-pad: 24px; }
  .footer-cols { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

@media (min-width: 640px) {
  body { font-size: 15.5px; }
  .site-header__inner { min-height: 76px; }
}

@media (min-width: 960px) {
  html { scroll-padding-top: 150px; }
  .nav-toggle { display: none; }

  .site-nav {
    display: block;
    background: transparent;
    max-height: none;
    overflow: visible;
  }

  .site-nav[data-open] { animation: none; }

  .site-nav__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    padding: 0;
  }

  .site-nav__meta {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding-block: 10px;
    font-family: var(--font-mono);
    font-size: 10.5px;
    letter-spacing: 0.24em;
    color: rgba(200, 244, 239, 0.48);
    white-space: nowrap;
  }

  .site-nav__meta::before {
    content: "";
    width: 14px;
    height: 2px;
    background: var(--cyan);
  }

  .site-nav__list {
    flex-direction: row;
    flex-wrap: wrap;
    justify-content: flex-end;
    gap: 2px;
  }

  .site-nav__link {
    position: relative;
    padding: 10px 12px;
    border-bottom: 0;
    border-radius: 2px;
    font-size: 14px;
  }

  .site-nav__link:hover { background: rgba(25, 211, 197, 0.1); }

  .site-nav__link[aria-current="page"] { background: rgba(255, 107, 26, 0.14); }

  .site-nav__link[aria-current="page"]::after {
    content: "";
    position: absolute;
    left: 12px;
    right: 12px;
    bottom: 3px;
    height: 2px;
    background: var(--orange);
  }

  .site-footer__inner {
    grid-template-columns: minmax(260px, 1.1fr) minmax(0, 2fr);
    gap: 48px;
    padding-block: 56px 38px;
  }
}

@media (min-width: 1080px) {
  .quick-list { display: flex; }
  .header-cta { padding: 10px 18px; }
}

@media (min-width: 1240px) {
  .site-nav__link { padding: 11px 14px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }

  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }

  .js [data-reveal] { opacity: 1; transform: none; }
  .footer-link:hover { transform: none; }
  .link-more:hover::after { transform: none; }
}

@media print {
  .site-header, .site-footer, .skip-link { display: none !important; }
  body { background: #FFFFFF; color: #000000; }
  .panel { box-shadow: none; }
}