/* ==========================================================================
   2026体育主页 · 共享样式 /assets/site.css
   1 令牌 2 重置 3 排版 4 布局 5 组件 6 头部 7 页脚 8 响应式 9 动效偏好
   ========================================================================== */

/* --- 1. 令牌 ------------------------------------------------------------ */
:root {
  --cdx-shell: 1240px;
  --cdx-gutter: clamp(1rem, 4vw, 3rem);
  --cdx-dur: 240ms;
  --cdx-ease: cubic-bezier(.22, .61, .36, 1);

  --c-night:   #0B2B22;
  --c-stand:   #103A2E;
  --c-turf:    #16513F;
  --c-line:    #2A4A41;
  --c-accent:  #2BE9C8;
  --c-accent-2:#17A88F;
  --c-gold:    #E3B23C;
  --c-warn:    #FF7A2F;
  --c-chalk:   #F2F7F4;
  --c-ink:     #061512;
  --c-muted:   #9FB8AE;

  --f-display: "Noto Sans SC", "Source Han Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
  --f-body: var(--f-display);
  --f-mono: ui-monospace, "JetBrains Mono", "IBM Plex Mono", SFMono-Regular, Menlo, Consolas, monospace;
}

/* --- 2. 重置 ------------------------------------------------------------ */
*, *::before, *::after { box-sizing: border-box; }

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

body {
  margin: 0;
  background-color: var(--c-night);
  color: var(--c-chalk);
  font-family: var(--f-body);
  font-size: 1rem;
  font-weight: 400;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img, svg, video, canvas { display: block; max-width: 100%; }
ul, ol { margin: 0; padding: 0; list-style: none; }
p, h1, h2, h3, h4, h5, h6 { margin: 0; }
h1, h2, h3 { font-weight: 900; line-height: 1.14; letter-spacing: -.02em; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; padding: 0; cursor: pointer; }
input, select, textarea { font: inherit; color: inherit; }
hr { border: 0; border-top: 1px solid var(--c-line); margin: 0; }

:focus-visible {
  outline: 2px solid var(--c-accent);
  outline-offset: 2px;
  box-shadow: 0 0 0 4px rgba(43, 233, 200, .14);
}

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

/* --- 3. 排版 ------------------------------------------------------------ */
.cdx-display {
  font-size: clamp(2.6rem, 7vw, 6rem);
  font-weight: 900;
  line-height: 1;
  letter-spacing: -.035em;
  text-wrap: balance;
}
.cdx-h1 {
  font-size: clamp(2.1rem, 5vw, 4rem);
  font-weight: 900;
  line-height: 1.04;
  letter-spacing: -.03em;
}
.cdx-h2 {
  font-size: clamp(1.6rem, 3vw, 2.6rem);
  font-weight: 900;
  line-height: 1.12;
  letter-spacing: -.025em;
}
.cdx-h3 {
  font-size: 1.125rem;
  font-weight: 800;
  line-height: 1.45;
}
.cdx-lead {
  font-size: clamp(1rem, 1.3vw, 1.125rem);
  line-height: 1.8;
  color: var(--c-chalk);
  max-width: 38em;
}
.cdx-text { max-width: 38em; color: var(--c-chalk); }
.cdx-muted { color: var(--c-muted); }
.cdx-mono {
  font-family: var(--f-mono);
  font-variant-numeric: tabular-nums;
  letter-spacing: .01em;
}
.cdx-kicker {
  display: inline-flex;
  align-items: center;
  gap: .6rem;
  font-family: var(--f-mono);
  font-size: .6875rem;
  letter-spacing: .18em;
  color: var(--c-accent);
  text-transform: uppercase;
}
.cdx-kicker::before {
  content: "";
  width: 1.75rem;
  height: 1px;
  background-color: var(--c-accent);
}

/* --- 4. 布局 ------------------------------------------------------------ */
.cdx-shell {
  width: 100%;
  max-width: var(--cdx-shell);
  margin-inline: auto;
  padding-inline: var(--cdx-gutter);
}
.cdx-main { display: block; }
.cdx-section { padding-block: clamp(2.5rem, 7vw, 5.5rem); }
.cdx-section--tight { padding-block: clamp(1.5rem, 4vw, 3rem); }
.cdx-grid {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: clamp(1rem, 2vw, 1.5rem);
}

/* --- 5. 组件 ------------------------------------------------------------ */
.cdx-btn {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  padding: .6rem 1.1rem;
  border: 1px solid var(--c-accent);
  background-color: transparent;
  color: var(--c-accent);
  font-family: var(--f-mono);
  font-size: .8125rem;
  letter-spacing: .06em;
  line-height: 1.4;
  transition: background-color var(--cdx-dur) var(--cdx-ease),
              color var(--cdx-dur) var(--cdx-ease),
              border-color var(--cdx-dur) var(--cdx-ease),
              transform var(--cdx-dur) var(--cdx-ease);
}
.cdx-btn:hover { background-color: var(--c-accent); color: var(--c-ink); transform: translateY(-2px); }
.cdx-btn--solid { background-color: var(--c-accent); color: var(--c-ink); }
.cdx-btn--solid:hover { background-color: var(--c-chalk); border-color: var(--c-chalk); color: var(--c-ink); }
.cdx-btn--ghost { border-color: var(--c-line); color: var(--c-chalk); }
.cdx-btn--ghost:hover { background-color: transparent; border-color: var(--c-accent); color: var(--c-accent); }

.cdx-card {
  position: relative;
  padding: clamp(1rem, 2vw, 1.5rem);
  background-color: var(--c-stand);
  border: 1px solid var(--c-line);
  transition: border-color var(--cdx-dur) var(--cdx-ease), transform var(--cdx-dur) var(--cdx-ease);
}
.cdx-card:hover { border-color: var(--c-accent-2); transform: translateY(-3px); }

.cdx-panel {
  padding: clamp(1rem, 2.2vw, 1.75rem);
  background-color: var(--c-stand);
  border: 1px solid var(--c-line);
}

.cdx-tag {
  display: inline-flex;
  align-items: center;
  gap: .35rem;
  padding: .15rem .5rem;
  border: 1px solid var(--c-line);
  font-family: var(--f-mono);
  font-size: .6875rem;
  letter-spacing: .08em;
  color: var(--c-muted);
}
.cdx-tag--accent { border-color: var(--c-accent-2); color: var(--c-accent); }
.cdx-tag--gold { border-color: var(--c-gold); color: var(--c-gold); }
.cdx-tag--warn { border-color: var(--c-warn); color: var(--c-warn); }

.cdx-frame {
  position: relative;
  border: 1px solid var(--c-line);
  background-color: var(--c-stand);
}
.cdx-frame::before,
.cdx-frame::after {
  content: "";
  position: absolute;
  width: 14px;
  height: 14px;
  border: 2px solid var(--c-accent);
  pointer-events: none;
}
.cdx-frame::before { top: -1px; left: -1px; border-right: 0; border-bottom: 0; }
.cdx-frame::after { right: -1px; bottom: -1px; border-top: 0; border-left: 0; }

.cdx-gridlines {
  background-image:
    linear-gradient(to right, rgba(42, 74, 65, .55) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(42, 74, 65, .55) 1px, transparent 1px);
  background-size: 44px 44px;
}

/* 图片容器基础规则：页面阶段把 <img> 放入即可 */
.cdx-media {
  position: relative;
  overflow: hidden;
  background-color: var(--c-turf);
  border: 1px solid var(--c-line);
  aspect-ratio: 16 / 9;
}
.cdx-media img,
.cdx-media svg {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.cdx-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(11, 43, 34, .12), rgba(11, 43, 34, .62));
  pointer-events: none;
}
.cdx-media--wide { aspect-ratio: 16 / 9; }
.cdx-media--panorama { aspect-ratio: 21 / 9; }
.cdx-media--square { aspect-ratio: 1 / 1; }
.cdx-media--portrait { aspect-ratio: 3 / 4; }
.cdx-media--plain::after { display: none; }

.cdx-figure { margin: 0; }
.cdx-figure__caption {
  margin-top: .6rem;
  font-family: var(--f-mono);
  font-size: .75rem;
  line-height: 1.6;
  color: var(--c-muted);
}

.cdx-breadcrumb {
  padding-block: .7rem;
  border-bottom: 1px solid var(--c-line);
  background-color: var(--c-night);
}
.cdx-breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .5rem;
  font-family: var(--f-mono);
  font-size: .75rem;
  color: var(--c-muted);
}
.cdx-breadcrumb__item { display: inline-flex; align-items: center; gap: .5rem; }
.cdx-breadcrumb__link { color: var(--c-muted); }
.cdx-breadcrumb__link:hover { color: var(--c-accent); }
.cdx-breadcrumb__sep { color: var(--c-line); }
.cdx-breadcrumb__current { color: var(--c-chalk); }

/* 检索状态（由脚本写入，页面不要手写） */
.cdx-hit { box-shadow: inset 0 0 0 1px var(--c-accent); color: var(--c-accent); }
.cdx-dim { opacity: .38; }

/* 滚动显现 */
.cdx-js [data-reveal] {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity var(--cdx-dur) var(--cdx-ease), transform var(--cdx-dur) var(--cdx-ease);
}
.cdx-js [data-reveal].is-visible { opacity: 1; transform: none; }

/* --- 6. 头部 ------------------------------------------------------------ */
.cdx-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: var(--c-night);
  border-bottom: 1px solid var(--c-line);
}
.cdx-skip {
  position: absolute;
  top: -4rem;
  left: var(--cdx-gutter);
  z-index: 120;
  padding: .6rem 1rem;
  background-color: var(--c-accent);
  color: var(--c-ink);
  font-family: var(--f-mono);
  font-size: .8125rem;
  transition: top var(--cdx-dur) var(--cdx-ease);
}
.cdx-skip:focus { top: .5rem; }

.cdx-progress {
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  z-index: 5;
  background-color: transparent;
  pointer-events: none;
}
.cdx-progress__bar {
  display: block;
  width: 100%;
  height: 100%;
  transform: scaleX(0);
  transform-origin: 0 50%;
  background: linear-gradient(90deg, var(--c-accent-2), var(--c-accent));
}

.cdx-header__upper {
  background-color: var(--c-night);
  border-bottom: 1px solid var(--c-line);
}
.cdx-header__upper-inner {
  display: flex;
  align-items: center;
  gap: clamp(.75rem, 2vw, 1.5rem);
  min-height: 3.5rem;
  padding-block: .5rem;
}
.cdx-brand {
  display: inline-flex;
  align-items: baseline;
  gap: .45rem;
  white-space: nowrap;
}
.cdx-brand__name {
  font-size: 1.0625rem;
  font-weight: 900;
  letter-spacing: -.02em;
  color: var(--c-chalk);
}
.cdx-brand__sep { color: var(--c-accent-2); }
.cdx-brand__sub {
  font-family: var(--f-mono);
  font-size: .75rem;
  color: var(--c-muted);
  letter-spacing: .02em;
}
.cdx-tagline {
  font-size: .8125rem;
  line-height: 1.5;
  color: var(--c-muted);
  white-space: nowrap;
}

.cdx-search {
  position: relative;
  display: flex;
  align-items: center;
  gap: .5rem;
  margin-left: auto;
  min-width: min(320px, 38vw);
  padding: .25rem .55rem;
  background-color: var(--c-stand);
  border: 1px solid var(--c-line);
  transition: border-color var(--cdx-dur) var(--cdx-ease), box-shadow var(--cdx-dur) var(--cdx-ease);
}
.cdx-search:focus-within {
  border-color: var(--c-accent);
  box-shadow: inset 0 0 0 1px var(--c-accent);
}
.cdx-search__label {
  font-family: var(--f-mono);
  font-size: .6875rem;
  letter-spacing: .12em;
  color: var(--c-accent);
  white-space: nowrap;
}
.cdx-search__input {
  flex: 1 1 auto;
  min-width: 0;
  padding: .35rem .1rem;
  background-color: transparent;
  border: 0;
  color: var(--c-chalk);
  font-family: var(--f-mono);
  font-size: .8125rem;
}
.cdx-search__input::placeholder { color: var(--c-muted); }
.cdx-search__input:focus-visible { outline: none; box-shadow: none; }
.cdx-search__hint {
  position: absolute;
  top: calc(100% + 6px);
  right: 0;
  display: none;
  min-width: 190px;
  padding: .4rem .6rem;
  background-color: var(--c-night);
  border: 1px solid var(--c-line);
  color: var(--c-muted);
  font-family: var(--f-mono);
  font-size: .6875rem;
  line-height: 1.5;
  z-index: 6;
}
.cdx-search__hint.is-active { display: block; }

.cdx-header__lower { background-color: var(--c-stand); }
.cdx-header__lower-inner {
  display: flex;
  align-items: center;
  gap: 1rem;
  min-height: 3rem;
}
.cdx-nav { flex: 1 1 auto; min-width: 0; }
.cdx-nav__list {
  display: flex;
  flex-wrap: wrap;
  gap: clamp(.25rem, 1.4vw, 1.25rem);
}
.cdx-nav__item { min-width: 0; }
.cdx-nav__link {
  display: block;
  padding: .55rem .2rem;
  border-bottom: 2px solid transparent;
  color: var(--c-chalk);
  font-size: .9375rem;
  transition: color var(--cdx-dur) var(--cdx-ease), border-color var(--cdx-dur) var(--cdx-ease);
}
.cdx-nav__link:hover { color: var(--c-accent); }
.cdx-nav__link[aria-current="page"] {
  color: var(--c-accent);
  border-bottom-color: var(--c-accent);
}

.cdx-navtoggle {
  display: none;
  align-items: center;
  gap: .5rem;
  padding: .4rem .7rem;
  border: 1px solid var(--c-line);
  color: var(--c-chalk);
  font-family: var(--f-mono);
  font-size: .75rem;
  letter-spacing: .08em;
}
.cdx-navtoggle__bars {
  position: relative;
  display: block;
  width: 16px;
  height: 10px;
  border-top: 2px solid currentColor;
  border-bottom: 2px solid currentColor;
}
.cdx-navtoggle__bars::after {
  content: "";
  position: absolute;
  left: 0; right: 0;
  top: 50%;
  height: 2px;
  background-color: currentColor;
  transform: translateY(-50%);
}
.cdx-header[data-open] .cdx-navtoggle {
  border-color: var(--c-accent);
  color: var(--c-accent);
}

.cdx-header__meta {
  margin-left: auto;
  font-family: var(--f-mono);
  font-size: .75rem;
  color: var(--c-muted);
  white-space: nowrap;
}

/* --- 7. 页脚 ------------------------------------------------------------ */
.cdx-footer {
  margin-top: clamp(3rem, 8vw, 7rem);
  background-color: var(--c-night);
  border-top: 1px solid var(--c-line);
}
.cdx-footer__inner {
  display: grid;
  grid-template-columns:
    minmax(0, 1.4fr)
    minmax(0, .7fr)
    minmax(0, .7fr)
    minmax(0, .7fr)
    minmax(0, 1.1fr);
  gap: clamp(1.5rem, 3vw, 2.5rem);
  padding-block: clamp(2.5rem, 6vw, 4.5rem) clamp(1.5rem, 4vw, 2.5rem);
}
.cdx-footer__brand { min-width: 0; }
.cdx-footer__logo {
  display: inline-block;
  font-size: 1.25rem;
  font-weight: 900;
  letter-spacing: -.02em;
  color: var(--c-chalk);
}
.cdx-footer__logo:hover { color: var(--c-accent); }
.cdx-footer__sign {
  margin-top: .5rem;
  font-size: .8125rem;
  color: var(--c-muted);
}
.cdx-footer__note {
  margin-top: .85rem;
  max-width: 30em;
  font-size: .8125rem;
  line-height: 1.7;
  color: var(--c-muted);
}
.cdx-footer__col { min-width: 0; }
.cdx-footer__title {
  margin-bottom: .85rem;
  font-family: var(--f-mono);
  font-size: .6875rem;
  font-weight: 500;
  letter-spacing: .16em;
  color: var(--c-accent);
  line-height: 1.6;
}
.cdx-footer__list li + li { margin-top: .5rem; }
.cdx-footer__link {
  display: inline-block;
  padding-bottom: 2px;
  border-bottom: 1px solid transparent;
  color: var(--c-muted);
  font-size: .9375rem;
  transition: color var(--cdx-dur) var(--cdx-ease), border-color var(--cdx-dur) var(--cdx-ease);
}
.cdx-footer__link:hover { color: var(--c-accent); border-bottom-color: var(--c-accent); }
.cdx-footer__contact { min-width: 0; }
.cdx-footer__line {
  display: flex;
  gap: .6rem;
  margin-top: .55rem;
  font-size: .8125rem;
  line-height: 1.65;
  color: var(--c-chalk);
  overflow-wrap: anywhere;
}
.cdx-footer__label {
  flex: 0 0 2.6rem;
  padding-top: .15rem;
  font-family: var(--f-mono);
  font-size: .6875rem;
  color: var(--c-muted);
}
.cdx-footer__bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: .5rem 1.5rem;
  padding-block: 1.1rem;
  border-top: 1px solid var(--c-line);
  font-family: var(--f-mono);
  font-size: .75rem;
  color: var(--c-muted);
}
.cdx-footer__legal { margin: 0; }
.cdx-footer__tip { margin: 0; }

/* --- 8. 响应式 ---------------------------------------------------------- */
@media (max-width: 1100px) {
  .cdx-footer__inner { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .cdx-footer__brand { grid-column: 1 / -1; }
  .cdx-tagline { display: none; }
}

@media (max-width: 900px) {
  .cdx-header__upper-inner {
    flex-wrap: wrap;
    row-gap: .6rem;
    padding-block: .6rem;
  }
  .cdx-brand { order: 1; }
  .cdx-header__cta { order: 2; margin-left: auto; }
  .cdx-search {
    order: 3;
    flex: 1 1 100%;
    min-width: 0;
    margin-left: 0;
  }
  .cdx-header__lower-inner {
    flex-wrap: wrap;
    row-gap: .25rem;
    padding-block: .4rem;
  }
  .cdx-navtoggle { display: inline-flex; }
  .cdx-nav {
    display: none;
    flex: 1 1 100%;
    order: 3;
  }
  .cdx-header[data-open] .cdx-nav { display: block; }
  .cdx-nav__list {
    flex-direction: column;
    gap: 0;
    padding-bottom: .5rem;
  }
  .cdx-nav__item { width: 100%; }
  .cdx-nav__link {
    padding: .75rem .25rem;
    border-bottom: 1px solid var(--c-line);
    font-size: 1rem;
  }
  .cdx-header__meta { display: none; }
  .cdx-grid { grid-template-columns: repeat(6, minmax(0, 1fr)); }
}

@media (max-width: 640px) {
  .cdx-footer__inner { grid-template-columns: minmax(0, 1fr); }
  .cdx-footer__bottom { flex-direction: column; align-items: flex-start; }
  .cdx-footer__line { flex-direction: column; gap: .1rem; }
  .cdx-footer__label { flex: none; }
  .cdx-grid { grid-template-columns: minmax(0, 1fr); }
  .cdx-btn { width: auto; }
}

/* --- 9. 动效偏好 -------------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
  }
  .cdx-progress { display: none; }
  .cdx-btn:hover,
  .cdx-card:hover,
  .cdx-link:hover { transform: none; }
  .cdx-js [data-reveal],
  .cdx-js [data-reveal].is-visible {
    opacity: 1;
    transform: none;
  }
}