/* =====================================================
   长城体育 · 共享样式表 /assets/site.css
   设计创意：城墙砌体 × 赛道刻度 × 编辑化刊物
   ===================================================== */

/* ---------- 变量 ---------- */
:root {
  --cc-brick: #C1272D;
  --cc-gold: #D4A017;
  --cc-ink: #1A1A1A;
  --cc-shale: #2D2D2D;
  --cc-cream: #F5F0EB;
  --cc-mist: #E8E4DF;
  --cc-white: #FFFFFF;
  --cc-alert: #E54444;
  --cc-green: #2C7A4D;
  --cc-black: #000000;

  --cc-font-head: 'Noto Serif SC','Source Han Serif SC','STSong',serif;
  --cc-font-body: 'Noto Sans SC','Helvetica Neue','PingFang SC',sans-serif;
  --cc-font-data: 'SFMono-Regular',Consolas,'Liberation Mono',monospace;

  --cc-w: min(1200px, calc(100vw - 40px));
  --cc-radius: 6px;
  --cc-line: 4px solid var(--cc-black);
  --cc-shadow: 6px 6px 0 var(--cc-black);
  --cc-shadow-soft: 4px 4px 0 rgba(0,0,0,.3);
}

/* ---------- Reset & Base ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--cc-font-body);
  font-size: 1rem;
  line-height: 1.75;
  color: var(--cc-ink);
  background-color: var(--cc-cream);
  -webkit-font-smoothing: antialiased;
}
main { display: block; }
img, picture, svg, video { max-width: 100%; display: block; height: auto; }
button { font: inherit; cursor: pointer; background: none; border: none; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
::selection { background: var(--cc-brick); color: var(--cc-white); }
:focus-visible { outline: 3px solid var(--cc-brick); outline-offset: 3px; border-radius: 4px; }

/* ---------- 中文排版 ---------- */
h1, h2, h3, h4 {
  font-family: var(--cc-font-head);
  font-weight: 900;
  line-height: 1.25;
  letter-spacing: .02em;
  text-wrap: balance;
}
h1 { font-size: clamp(2.1rem, 5vw, 3.2rem); margin-bottom: 18px; }
h2 { font-size: clamp(1.5rem, 3vw, 2.3rem); margin-bottom: 16px; }
h3 { font-size: 1.25rem; margin-bottom: 10px; }
h4 { font-size: 1.05rem; margin-bottom: 6px; }
p { margin-bottom: 1em; text-wrap: pretty; }
small { font-size: .85em; }

/* ---------- 工具类 ---------- */
.cc-container { width: var(--cc-w); margin-inline: auto; }
.cc-section { padding: clamp(56px, 9vw, 96px) 0; }
.cc-section + .cc-section { border-top: 2px solid var(--cc-black); }
.cc-main { padding-top: clamp(86px, 10vw, 112px); }
#main-content { scroll-margin-top: 96px; }
.cc-on-dark { background-color: var(--cc-ink); color: var(--cc-cream); }
.cc-on-dark h1, .cc-on-dark h2, .cc-on-dark h3, .cc-on-dark h4 { color: var(--cc-white); }

/* ---------- Skip Link ---------- */
.cc-skip {
  position: fixed;
  top: -80px;
  left: 16px;
  z-index: 1000;
  background: var(--cc-brick);
  color: var(--cc-white);
  font-weight: 700;
  padding: 12px 20px;
  border: 2px solid var(--cc-black);
  border-radius: 0 0 8px 8px;
  box-shadow: var(--cc-shadow-soft);
  transition: top .2s ease;
}
.cc-skip:focus { top: 0; }

/* ---------- 滚动进度条 ---------- */
.cc-progress {
  position: fixed;
  inset: 0 0 auto 0;
  height: 5px;
  z-index: 400;
  background: rgba(0,0,0,.3);
  pointer-events: none;
}
.cc-progress-fill {
  display: block;
  width: 0;
  height: 100%;
  background: linear-gradient(90deg, var(--cc-brick) 0 70%, var(--cc-gold) 100%);
  border-right: 2px solid var(--cc-gold);
}

/* ---------- 悬浮胶囊头部 ---------- */
.cc-header {
  position: fixed;
  top: 14px;
  left: 50%;
  transform: translateX(-52%);
  z-index: 300;
  width: min(1120px, calc(100vw - 28px));
  background: rgba(245,240,235,.92);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  border: var(--cc-line);
  border-radius: 999px;
  box-shadow: 4px 4px 0 rgba(0,0,0,.35), 0 2px 8px rgba(0,0,0,.08);
  transition: box-shadow .3s ease, top .3s ease;
}
.cc-header.is-scrolled {
  top: 8px;
  box-shadow: 6px 6px 0 rgba(0,0,0,.42), 0 10px 24px rgba(26,26,26,.18);
}
.cc-header-inner {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 8px 10px 8px 18px;
}
.cc-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.cc-brand-mark {
  position: relative;
  display: inline-block;
  flex-shrink: 0;
  width: 36px;
  height: 36px;
  background: var(--cc-brick);
  border: 2px solid var(--cc-black);
  border-radius: 5px;
  box-shadow: 2px 2px 0 var(--cc-black);
  transition: transform .2s ease;
}
.cc-brand-mark::before {
  content: '';
  position: absolute;
  left: 4px;
  right: 4px;
  top: 50%;
  height: 2px;
  background: var(--cc-gold);
  transform: translateY(-50%);
}
.cc-brand-mark::after {
  content: '';
  position: absolute;
  right: 4px;
  bottom: 4px;
  width: 9px;
  height: 9px;
  background: var(--cc-gold);
  border-radius: 1px;
}
.cc-brand:hover .cc-brand-mark { transform: translateY(-2px) rotate(-2deg); }
.cc-brand-text {
  display: inline-flex;
  flex-direction: column;
  line-height: 1.12;
}
.cc-brand-name {
  font-family: var(--cc-font-head);
  font-weight: 900;
  font-size: 1.3rem;
  letter-spacing: .1em;
  color: var(--cc-ink);
}
.cc-brand-sub {
  font-size: .68rem;
  font-weight: 700;
  letter-spacing: .18em;
  color: var(--cc-shale);
  text-transform: uppercase;
}

/* ---------- 导航 ---------- */
.cc-nav {
  display: flex;
  align-items: center;
  gap: 2px;
  margin-left: auto;
}
.cc-nav a {
  display: inline-block;
  padding: 9px 14px;
  border-radius: 999px;
  font-size: .87rem;
  font-weight: 600;
  color: var(--cc-ink);
  white-space: nowrap;
  line-height: 1.4;
  transition: background-color .2s ease, color .2s ease, box-shadow .2s ease;
}
.cc-nav a:hover {
  background-color: var(--cc-brick);
  color: var(--cc-white);
  box-shadow: 0 2px 0 var(--cc-black);
}
.cc-nav a[aria-current="page"] {
  background-color: var(--cc-ink);
  color: var(--cc-cream);
  box-shadow: inset 0 -3px 0 var(--cc-gold);
}

/* ---------- 移动端导航按钮 ---------- */
.cc-nav-toggle {
  display: none;
  align-items: center;
  gap: 8px;
  margin-left: auto;
  padding: 8px 14px 8px 10px;
  border: 2px solid var(--cc-black);
  border-radius: 999px;
  background-color: var(--cc-brick);
  color: var(--cc-white);
  box-shadow: 2px 2px 0 var(--cc-black);
  transition: transform .15s ease, box-shadow .15s ease;
}
.cc-nav-toggle:active { transform: translate(2px,2px); box-shadow: none; }
.cc-nav-toggle-box {
  display: inline-flex;
  flex-direction: column;
  gap: 3px;
  width: 18px;
}
.cc-nav-toggle-bar {
  display: block;
  height: 2px;
  background-color: currentColor;
  border-radius: 1px;
  transition: transform .25s ease, opacity .25s ease;
}
.cc-nav-toggle[aria-expanded="true"] .cc-nav-toggle-bar:nth-child(1) { transform: translateY(5px) rotate(45deg); }
.cc-nav-toggle[aria-expanded="true"] .cc-nav-toggle-bar:nth-child(2) { opacity: 0; }
.cc-nav-toggle[aria-expanded="true"] .cc-nav-toggle-bar:nth-child(3) { transform: translateY(-5px) rotate(-45deg); }
.cc-nav-toggle-label { font-size: .85rem; font-weight: 700; }

/* ---------- 页脚 ---------- */
.cc-footer {
  position: relative;
  margin-top: clamp(56px, 9vw, 96px);
  background-color: var(--cc-ink);
  color: var(--cc-cream);
  border-top: 6px solid var(--cc-brick);
}
.cc-footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 6px;
  background: repeating-linear-gradient(90deg, var(--cc-gold) 0 26px, transparent 26px 34px);
  opacity: .7;
}
.cc-footer-inner {
  width: var(--cc-w);
  margin-inline: auto;
  padding: 56px 0 28px;
}
.cc-footer-top {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1.2fr;
  gap: 40px;
  padding-bottom: 32px;
  border-bottom: 1px solid rgba(245,240,235,.18);
}
.cc-footer-name {
  font-family: var(--cc-font-head);
  font-size: 1.6rem;
  font-weight: 900;
  letter-spacing: .12em;
  color: var(--cc-white);
  margin-bottom: 10px;
}
.cc-footer-desc {
  font-size: .9rem;
  line-height: 1.7;
  color: rgba(245,240,235,.7);
  max-width: 32em;
}
.cc-footer-nav {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.cc-footer-nav a {
  display: inline-block;
  color: var(--cc-cream);
  font-weight: 600;
  font-size: .95rem;
  padding-left: 12px;
  border-left: 3px solid var(--cc-gold);
  transition: border-color .2s ease, color .2s ease, transform .2s ease;
}
.cc-footer-nav a:hover {
  color: var(--cc-gold);
  border-left-color: var(--cc-brick);
  transform: translateX(2px);
}
.cc-footer-contact {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: .88rem;
  line-height: 1.7;
  color: rgba(245,240,235,.7);
}
.cc-footer-contact p::before {
  content: '▍';
  color: var(--cc-brick);
  margin-right: 6px;
}
.cc-footer-bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 8px 24px;
  padding-top: 22px;
  font-size: .82rem;
  color: rgba(245,240,235,.5);
}

/* ---------- 面板组件 ---------- */
.cc-panel {
  position: relative;
  background: var(--cc-white);
  border: var(--cc-line);
  border-radius: var(--cc-radius);
  box-shadow: var(--cc-shadow);
  padding: clamp(24px, 4vw, 44px);
}
.cc-panel + .cc-panel { margin-top: clamp(20px, 3vw, 32px); }
.cc-panel-dark {
  background: var(--cc-ink);
  color: var(--cc-cream);
  border-color: var(--cc-cream);
}
.cc-panel-head {
  display: flex;
  align-items: center;
  gap: 14px;
  padding-bottom: 14px;
  margin-bottom: 18px;
  border-bottom: 2px solid currentColor;
}
.cc-panel-index {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 42px;
  height: 32px;
  padding: 0 10px;
  font-family: var(--cc-font-data);
  font-weight: 700;
  font-size: .9rem;
  color: var(--cc-brick);
  background: var(--cc-cream);
  border: 2px solid var(--cc-black);
  border-radius: 4px;
  line-height: 1;
}
.cc-panel-title {
  font-family: var(--cc-font-head);
  font-size: clamp(1.15rem, 2.4vw, 1.7rem);
  font-weight: 800;
  line-height: 1.2;
  margin: 0;
}
.cc-panel-dark .cc-panel-index { color: var(--cc-white); background: var(--cc-brick); }
.cc-panel-dark .cc-panel-head { border-bottom-color: var(--cc-gold); }

/* ---------- 框景首屏 ---------- */
.cc-frame {
  position: relative;
  background: var(--cc-cream);
  border: var(--cc-line);
  border-radius: var(--cc-radius);
  box-shadow: var(--cc-shadow);
  padding: clamp(28px, 5vw, 56px);
}
.cc-frame::before,
.cc-frame::after {
  content: '';
  position: absolute;
  width: 34px;
  height: 34px;
  border: 3px solid var(--cc-gold);
  pointer-events: none;
  z-index: 1;
}
.cc-frame::before { top: -10px; left: -10px; border-right: 0; border-bottom: 0; }
.cc-frame::after { bottom: -10px; right: -10px; border-left: 0; border-top: 0; }
.cc-frame > * { position: relative; z-index: 2; }

/* ---------- 测量刻度条 ---------- */
.cc-scale {
  height: 12px;
  margin-bottom: 16px;
  background: repeating-linear-gradient(90deg, var(--cc-black) 0 1.5px, transparent 1.5px 12px);
  border-left: 3px solid var(--cc-black);
  border-right: 3px solid var(--cc-black);
  opacity: .65;
}

/* ---------- 网格 ---------- */
.cc-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: clamp(20px, 3vw, 32px);
}
.cc-grid > * { grid-column: span 12; }
@media (min-width: 720px) {
  .cc-grid[data-cols="2"] > *,
  .cc-grid.cc-cols-2 > * { grid-column: span 6; }
  .cc-grid[data-cols="3"] > *,
  .cc-grid.cc-cols-3 > * { grid-column: span 6; }
  .cc-grid[data-cols="4"] > *,
  .cc-grid.cc-cols-4 > * { grid-column: span 6; }
}
@media (min-width: 960px) {
  .cc-grid[data-cols="3"] > *,
  .cc-grid.cc-cols-3 > * { grid-column: span 4; }
  .cc-grid[data-cols="4"] > *,
  .cc-grid.cc-cols-4 > * { grid-column: span 3; }
  .cc-grid .cc-grid-wide { grid-column: span 8; }
  .cc-grid .cc-grid-narrow { grid-column: span 4; }
}

/* ---------- 卡片 ---------- */
.cc-card {
  display: block;
  height: 100%;
  background: var(--cc-white);
  border: 2px solid var(--cc-black);
  border-left-width: 4px;
  border-left-color: transparent;
  border-radius: 8px;
  padding: 22px;
  box-shadow: 4px 4px 0 rgba(0,0,0,.18);
  transition: transform .2s ease, box-shadow .2s ease, border-left-color .2s ease;
}
.cc-card:hover,
a.cc-card:focus-visible {
  transform: translate(-2px,-2px);
  box-shadow: 6px 6px 0 rgba(0,0,0,.35);
  border-left-color: var(--cc-brick);
}
.cc-card-title {
  font-family: var(--cc-font-head);
  font-size: 1.12rem;
  font-weight: 800;
  line-height: 1.3;
  margin-bottom: 6px;
}
.cc-card-text {
  font-size: .9rem;
  color: var(--cc-shale);
  line-height: 1.7;
  margin-bottom: 0;
}
.cc-meta {
  display: block;
  font-size: .8rem;
  font-weight: 600;
  letter-spacing: .08em;
  color: var(--cc-shale);
  text-transform: uppercase;
  margin-bottom: 8px;
}

/* ---------- 按钮 ---------- */
.cc-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  border: 2px solid var(--cc-black);
  border-radius: var(--cc-radius);
  font: 700 .95rem/1 var(--cc-font-body);
  letter-spacing: .04em;
  text-align: center;
  transition: transform .15s ease, box-shadow .15s ease, background-color .15s ease, color .15s ease;
}
.cc-btn-red {
  background-color: var(--cc-brick);
  color: var(--cc-white);
  box-shadow: 4px 4px 0 var(--cc-black);
}
.cc-btn-red:hover { transform: translate(2px,2px); box-shadow: 2px 2px 0 var(--cc-black); }
.cc-btn-outline {
  background-color: transparent;
  color: var(--cc-ink);
  box-shadow: 4px 4px 0 var(--cc-black);
}
.cc-btn-outline:hover {
  background-color: var(--cc-ink);
  color: var(--cc-cream);
  transform: translate(2px,2px);
  box-shadow: 2px 2px 0 var(--cc-black);
}
.cc-btn:active { transform: translate(4px,4px); box-shadow: none; }

/* ---------- 标签 ---------- */
.cc-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 12px;
  background: var(--cc-cream);
  border: 2px solid var(--cc-black);
  border-radius: 999px;
  font-size: .8rem;
  font-weight: 700;
  color: var(--cc-shale);
  line-height: 1.4;
  white-space: nowrap;
}
.cc-tag::before {
  content: '◆';
  font-size: .6rem;
  color: var(--cc-gold);
  transform: translateY(-1px);
}

/* ---------- 面包屑 ---------- */
.cc-breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: .88rem;
  font-weight: 500;
  color: var(--cc-shale);
  margin-bottom: 16px;
}
.cc-breadcrumb a { color: var(--cc-brick); font-weight: 600; }
.cc-breadcrumb a:hover { text-decoration: underline; }
.cc-breadcrumb [aria-hidden="true"] { color: var(--cc-gold); font-weight: 700; }
.cc-breadcrumb [aria-current="page"] { color: var(--cc-ink); font-weight: 700; }

/* ---------- 数据高亮 ---------- */
.cc-data {
  font-family: var(--cc-font-data);
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--cc-brick);
  line-height: 1.4;
}
.cc-data-label {
  display: block;
  font-family: var(--cc-font-body);
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--cc-shale);
  margin-bottom: 2px;
}

/* ---------- 图片容器 ---------- */
.cc-media {
  position: relative;
  display: block;
  overflow: hidden;
  background: var(--cc-mist);
  border: 2px solid var(--cc-black);
  border-radius: 4px;
  box-shadow: 4px 4px 0 rgba(0,0,0,.22);
}
.cc-media[data-ratio="16:9"] { aspect-ratio: 16/9; }
.cc-media[data-ratio="4:3"] { aspect-ratio: 4/3; }
.cc-media[data-ratio="1:1"] { aspect-ratio: 1/1; }
.cc-media img { width: 100%; height: 100%; object-fit: cover; object-position: center; }
.cc-media-placeholder {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: .82rem;
  font-weight: 700;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--cc-shale);
}
.cc-media-placeholder::after {
  content: '';
  position: absolute;
  inset: 8px;
  border: 1px dashed rgba(45,45,45,.4);
}

/* ---------- 分隔线 ---------- */
.cc-divider {
  border: 0;
  height: 4px;
  margin: 36px 0;
  background: repeating-linear-gradient(90deg, var(--cc-ink) 0 10px, transparent 10px 18px);
}

/* ---------- 显现动效 ---------- */
[data-reveal] {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity .55s cubic-bezier(.22,.61,.36,1), transform .55s cubic-bezier(.22,.61,.36,1);
}
[data-reveal].is-revealed { opacity: 1; transform: none; }
[data-reveal-delay="1"] { transition-delay: .06s; }
[data-reveal-delay="2"] { transition-delay: .12s; }
[data-reveal-delay="3"] { transition-delay: .18s; }
[data-reveal-delay="4"] { transition-delay: .24s; }

/* ---------- 响应式：移动端导航 ---------- */
@media (max-width: 919px) {
  .cc-header {
    transform: translateX(-50%);
    width: calc(100vw - 24px);
  }
  .cc-header-inner { padding-left: 14px; }
  .cc-nav-toggle { display: inline-flex; }
  .cc-nav {
    position: absolute;
    top: calc(100% + 14px);
    left: 0;
    right: 0;
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 6px;
    margin-left: 0;
    padding: 12px;
    background: var(--cc-cream);
    border: var(--cc-line);
    border-radius: 14px;
    box-shadow: var(--cc-shadow);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: opacity .25s ease, transform .25s ease, visibility .25s;
  }
  .cc-nav[data-open] { opacity: 1; visibility: visible; transform: translateY(0); }
  .cc-nav a {
    display: block;
    padding: 12px 16px;
    font-size: 1rem;
    border-radius: 8px;
  }
  .cc-nav a[aria-current="page"] { background-color: var(--cc-ink); color: var(--cc-cream); }
}

/* ---------- 响应式：页脚与细节 ---------- */
@media (max-width: 719px) {
  .cc-footer-top {
    grid-template-columns: 1fr;
    gap: 28px;
  }
  .cc-footer-bottom {
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
  }
}
@media (max-width: 480px) {
  .cc-header { width: calc(100vw - 16px); }
  .cc-header-inner { gap: 8px; padding-left: 12px; }
  .cc-brand-sub { display: none; }
  .cc-btn { padding: 11px 18px; }
}

/* ---------- 减弱动效 ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
  }
  .cc-header {
    -webkit-backdrop-filter: none;
    backdrop-filter: none;
  }
  .cc-nav { transition: none; }
  [data-reveal] { opacity: 1; transform: none; transition: none; }
}