/* ===== 华体会赛场 · 共享样式 /assets/site.css ===== */

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

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

body,
h1, h2, h3, h4, h5, h6,
p, figure, blockquote, dl, dd { margin: 0; }

ul, ol { margin: 0; padding: 0; list-style: none; }

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

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

table { border-collapse: collapse; border-spacing: 0; }

a { color: inherit; }

:focus { outline: none; }

:focus-visible {
  outline: 3px solid #F2762B;
  outline-offset: 2px;
}

/* ---- 变量 ---- */
:root {
  --night-blue: #0E2A47;
  --deep-blue: #071A2E;
  --lamp-orange: #F2762B;
  --amber: #F7A96B;
  --cream: #F3EDE3;
  --ink: #221C17;
  --silver: #B9C2CB;
  --grass: #1F5C3D;
  --lime: #6E7A85;

  --paper: #FBF7F0;
  --grid-line: rgba(110, 122, 133, .22);
  --grid-line-dark: rgba(185, 194, 203, .08);
  --hard-shadow: 8px 8px 0 var(--ink);
  --hard-shadow-sm: 5px 5px 0 var(--ink);

  --rail-w: 236px;
  --maxw: 1180px;

  --font-display: "Arial Narrow", "Liberation Sans Narrow", "Helvetica Neue Condensed", "Helvetica Neue", Arial, "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-body: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans SC", sans-serif;
  --font-mono: ui-monospace, "SF Mono", Menlo, Consolas, "DejaVu Sans Mono", "Courier New", monospace;

  --speed-state: .16s;
}

/* ---- 基础排版 ---- */
body {
  min-height: 100vh;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.85;
  color: var(--ink);
  background-color: var(--cream);
  background-image:
    linear-gradient(to right, var(--grid-line) 1px, transparent 1px),
    linear-gradient(to bottom, var(--grid-line) 1px, transparent 1px);
  background-size: 32px 32px;
  -webkit-font-smoothing: antialiased;
}

::selection {
  background: var(--lamp-orange);
  color: var(--deep-blue);
}

h1, h2, h3, h4 {
  line-height: 1.25;
  font-weight: 800;
}

p { max-width: 38em; }

/* ---- 跳至主内容 ---- */
.skip-link {
  position: absolute;
  top: 0;
  left: -9999px;
  z-index: 200;
  padding: 10px 18px;
  background: var(--lamp-orange);
  color: var(--deep-blue);
  font-weight: 700;
  letter-spacing: .08em;
  text-decoration: none;
  border: 2px solid var(--ink);
  box-shadow: var(--hard-shadow-sm);
}

.skip-link:focus,
.skip-link:focus-visible {
  left: 12px;
  top: 12px;
}

/* ---- 移动顶栏 ---- */
.topbar {
  position: sticky;
  top: 0;
  z-index: 45;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  color: var(--cream);
  background-color: var(--deep-blue);
  background-image:
    linear-gradient(to right, var(--grid-line-dark) 1px, transparent 1px),
    linear-gradient(to bottom, var(--grid-line-dark) 1px, transparent 1px);
  background-size: 24px 24px;
  border-bottom: 3px solid var(--ink);
}

.topbar__brand {
  display: block;
  text-decoration: none;
  color: var(--cream);
}

.topbar__brand-cn {
  display: block;
  font-size: 17px;
  font-weight: 800;
  letter-spacing: .14em;
  line-height: 1.3;
}

.topbar__brand-en {
  display: block;
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: .22em;
  color: var(--lamp-orange);
}

.topbar__view {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--silver);
  white-space: nowrap;
}

.nav-toggle {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 9px 12px;
  background: transparent;
  color: var(--cream);
  border: 2px solid var(--silver);
  font-size: 13px;
  letter-spacing: .14em;
  cursor: pointer;
  transition: border-color var(--speed-state) ease, color var(--speed-state) ease;
}

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

.nav-toggle__bars {
  display: block;
  width: 16px;
  height: 2px;
  background: currentColor;
  box-shadow: 0 -5px 0 currentColor, 0 5px 0 currentColor;
}

/* ---- 遮罩 ---- */
.rail-scrim {
  position: fixed;
  inset: 0;
  z-index: 50;
  background: rgba(7, 26, 46, .62);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--speed-state) ease;
}

.rail-scrim[data-open] {
  opacity: 1;
  pointer-events: auto;
}

/* ---- 侧边轨道导航（移动端为抽屉） ---- */
.rail {
  position: fixed;
  top: 0;
  bottom: 0;
  left: 0;
  z-index: 60;
  width: min(84vw, 300px);
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding: 22px 18px 20px 20px;
  overflow-y: auto;
  color: var(--cream);
  background-color: var(--deep-blue);
  background-image:
    linear-gradient(to right, var(--grid-line-dark) 1px, transparent 1px),
    linear-gradient(to bottom, var(--grid-line-dark) 1px, transparent 1px);
  background-size: 24px 24px;
  border-right: 3px solid var(--ink);
  transform: translateX(-102%);
  transition: transform .24s ease;
}

.rail[data-open] { transform: translateX(0); }

.rail__brand {
  display: block;
  padding-bottom: 14px;
  color: var(--cream);
  text-decoration: none;
  border-bottom: 2px solid rgba(185, 194, 203, .35);
}

.rail__brand-cn {
  display: block;
  font-size: 21px;
  font-weight: 800;
  letter-spacing: .16em;
  line-height: 1.2;
}

.rail__brand-en {
  display: block;
  margin-top: 6px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .24em;
  color: var(--lamp-orange);
}

.rail__meta {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--silver);
}

.rail__meta .mono { color: var(--lamp-orange); }

.rail__group-label {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .24em;
  text-transform: uppercase;
  color: var(--silver);
}

.rail__group-label::after {
  content: "";
  flex: 1;
  height: 1px;
  background: rgba(185, 194, 203, .32);
}

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

.rail__link {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 11px 12px 11px 14px;
  color: var(--silver);
  font-size: 15px;
  letter-spacing: .12em;
  text-decoration: none;
  border-left: 3px solid transparent;
  transition: color var(--speed-state) ease, background-color var(--speed-state) ease, border-color var(--speed-state) ease;
}

.rail__link:hover {
  color: var(--cream);
  background: rgba(242, 118, 43, .12);
  border-left-color: var(--amber);
}

.rail__link[aria-current="page"] {
  color: var(--cream);
  font-weight: 700;
  background: rgba(242, 118, 43, .18);
  border-left-color: var(--lamp-orange);
}

.rail__index {
  font-size: 11px;
  color: var(--lamp-orange);
  letter-spacing: .1em;
}

.rail__foot {
  margin-top: auto;
  padding-top: 16px;
  border-top: 1px dashed rgba(185, 194, 203, .3);
}

.rail__state {
  margin-top: 12px;
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--cream);
}

.rail__state .mono {
  display: block;
  font-size: 10px;
  letter-spacing: .2em;
  color: var(--silver);
}

.rail__progress {
  margin-top: 14px;
  height: 3px;
  background: rgba(185, 194, 203, .22);
}

.rail__progress > span {
  display: block;
  width: 0;
  height: 100%;
  background: linear-gradient(90deg, var(--amber), var(--lamp-orange));
}

/* ---- 赛季切换器 ---- */
.season-switch {
  display: flex;
  gap: 6px;
  margin-top: 10px;
}

.season-switch__btn {
  flex: 1;
  padding: 7px 0;
  background: transparent;
  color: var(--silver);
  border: 1px solid var(--silver);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .08em;
  cursor: pointer;
  transition: color var(--speed-state) ease, background-color var(--speed-state) ease, border-color var(--speed-state) ease;
}

.season-switch__btn:hover {
  color: var(--amber);
  border-color: var(--amber);
}

.season-switch__btn[aria-pressed="true"] {
  background: var(--lamp-orange);
  border-color: var(--lamp-orange);
  color: var(--deep-blue);
  font-weight: 700;
}

/* ---- 页脚 ---- */
.site-footer {
  position: relative;
  margin-top: 72px;
  color: var(--cream);
  background-color: var(--deep-blue);
  background-image:
    linear-gradient(to right, var(--grid-line-dark) 1px, transparent 1px),
    linear-gradient(to bottom, var(--grid-line-dark) 1px, transparent 1px);
  background-size: 32px 32px;
  border-top: 8px solid var(--ink);
}

.footer__top {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 56px 24px 36px;
  display: grid;
  gap: 40px;
  grid-template-columns: 1.3fr 1fr 1.2fr;
}

.footer__col { min-width: 0; }

.footer__heading {
  padding-bottom: 10px;
  margin-bottom: 16px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .24em;
  text-transform: uppercase;
  color: var(--amber);
  border-bottom: 2px solid rgba(185, 194, 203, .28);
}

.footer__hint {
  margin-bottom: 16px;
  font-size: 13px;
  color: var(--silver);
}

.footer__venue-groups {
  display: grid;
  gap: 18px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.footer__group-name {
  margin-bottom: 6px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--lamp-orange);
}

.footer__venues li {
  position: relative;
  padding-left: 14px;
  font-size: 13.5px;
  line-height: 1.9;
  color: var(--silver);
}

.footer__venues li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .72em;
  width: 6px;
  height: 6px;
  background: var(--grass);
}

.footer__links li { margin-bottom: 8px; }

.footer__links a {
  color: var(--silver);
  font-size: 14.5px;
  letter-spacing: .08em;
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--speed-state) ease, border-color var(--speed-state) ease;
}

.footer__links a:hover {
  color: var(--amber);
  border-bottom-color: var(--amber);
}

.footer__facts li {
  margin-bottom: 14px;
  font-size: 14.5px;
  color: var(--cream);
  word-break: break-all;
}

.footer__facts .mono {
  display: block;
  margin-bottom: 2px;
  font-size: 10px;
  letter-spacing: .2em;
  color: var(--silver);
}

.footer__note {
  margin-top: 16px;
  padding: 14px 16px;
  font-size: 13px;
  line-height: 1.8;
  color: var(--silver);
  background: rgba(14, 42, 71, .7);
  border-left: 4px solid var(--lamp-orange);
}

.footer__legal {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 20px 24px 32px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 24px;
  border-top: 2px solid rgba(185, 194, 203, .24);
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .12em;
  color: var(--silver);
}

.footer__icp { color: var(--amber); }

.footer__year { margin-left: auto; }

/* ---- 通用容器 ---- */
.wrap {
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 24px;
}

.section { padding: 64px 0; }

.blueprint {
  background-image:
    linear-gradient(to right, var(--grid-line) 1px, transparent 1px),
    linear-gradient(to bottom, var(--grid-line) 1px, transparent 1px);
  background-size: 32px 32px;
}

.grid { display: grid; gap: 32px; }

.grid--5-7 { grid-template-columns: 5fr 7fr; }
.grid--4-8 { grid-template-columns: 4fr 8fr; }
.grid--3-9 { grid-template-columns: 3fr 9fr; }

/* ---- 文本层级 ---- */
.eyebrow {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .26em;
  text-transform: uppercase;
  color: var(--lamp-orange);
}

.display {
  font-family: var(--font-display);
  font-weight: 800;
  font-stretch: condensed;
  letter-spacing: .08em;
  line-height: 1.02;
  text-transform: uppercase;
}

.display--xl {
  font-size: clamp(2.5rem, 7.5vw, 6rem);
  letter-spacing: .1em;
}

.lede {
  font-size: 17px;
  line-height: 1.9;
  color: #3B332B;
}

.mono {
  font-family: var(--font-mono);
  font-size: .86em;
  letter-spacing: .08em;
}

/* ---- 按钮 ---- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 13px 22px;
  background: var(--cream);
  color: var(--ink);
  border: 2px solid var(--ink);
  box-shadow: var(--hard-shadow-sm);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: .12em;
  text-decoration: none;
  cursor: pointer;
  transition: transform var(--speed-state) ease, box-shadow var(--speed-state) ease, background-color var(--speed-state) ease, color var(--speed-state) ease;
}

.btn:hover {
  transform: translate(-2px, -2px);
  box-shadow: 8px 8px 0 var(--ink);
}

.btn:active {
  transform: translate(2px, 2px);
  box-shadow: 2px 2px 0 var(--ink);
}

.btn--primary {
  background: var(--lamp-orange);
  color: var(--deep-blue);
  border-color: var(--ink);
}

.btn--primary:hover { background: var(--amber); }

.btn--ghost {
  background: transparent;
  color: var(--cream);
  border-color: var(--cream);
  box-shadow: var(--hard-shadow-sm);
}

.btn--ghost:hover { box-shadow: 8px 8px 0 var(--deep-blue); }

/* ---- 面包屑 ---- */
.crumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--lime);
}

.crumbs a {
  color: var(--lime);
  text-decoration: none;
  border-bottom: 1px solid var(--silver);
  transition: color var(--speed-state) ease, border-color var(--speed-state) ease;
}

.crumbs a:hover {
  color: var(--lamp-orange);
  border-bottom-color: var(--lamp-orange);
}

.crumbs li + li::before {
  content: "/";
  margin-right: 8px;
  color: var(--silver);
}

/* ---- 卡片与标签 ---- */
.card {
  padding: 26px 24px;
  background: var(--paper);
  border: 2px solid var(--ink);
  box-shadow: var(--hard-shadow);
}

.card--deep {
  background: var(--night-blue);
  color: var(--cream);
  border-color: var(--silver);
  box-shadow: var(--hard-shadow);
}

.card--deep p { color: var(--silver); }

.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 9px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--lime);
  border: 1px solid var(--silver);
  background: transparent;
}

.tag--grass {
  color: var(--cream);
  background: var(--grass);
  border-color: var(--grass);
}

.tag--orange {
  color: var(--deep-blue);
  background: var(--lamp-orange);
  border-color: var(--lamp-orange);
}

.tag--line {
  color: var(--night-blue);
  border-color: var(--night-blue);
}

/* ---- 数字锚点 ---- */
.stat { display: block; }

.stat__value {
  display: block;
  font-family: var(--font-display);
  font-weight: 800;
  font-stretch: condensed;
  font-size: clamp(2.4rem, 6vw, 4.4rem);
  line-height: 1;
  letter-spacing: .04em;
  color: var(--night-blue);
}

.stat__label {
  display: block;
  margin-top: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .2em;
  color: var(--lime);
}

/* ---- 数据表 ---- */
.data-table {
  width: 100%;
  background: var(--paper);
  border: 2px solid var(--ink);
  font-size: 15px;
}

.data-table caption {
  padding: 12px 14px;
  text-align: left;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .2em;
  color: var(--lime);
}

.data-table th,
.data-table td {
  padding: 12px 14px;
  text-align: left;
  border-bottom: 1px solid rgba(34, 28, 23, .16);
}

.data-table thead th {
  background: var(--deep-blue);
  color: var(--cream);
  border-bottom: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .18em;
  text-transform: uppercase;
}

.data-table tbody tr {
  transition: background-color var(--speed-state) ease;
}

.data-table tbody tr:hover { background: rgba(242, 118, 43, .1); }

.data-table .num {
  font-family: var(--font-mono);
  text-align: right;
  letter-spacing: .04em;
}

/* ---- 可展开内容组 ---- */
.expander {
  background: var(--paper);
  border: 2px solid var(--ink);
  box-shadow: var(--hard-shadow-sm);
}

.expander + .expander { margin-top: 12px; }

.expander__head {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px 20px;
  background: transparent;
  border: 0;
  border-left: 6px solid var(--silver);
  font-size: 16px;
  font-weight: 700;
  text-align: left;
  cursor: pointer;
  transition: background-color var(--speed-state) ease, border-color var(--speed-state) ease;
}

.expander__head:hover { background: rgba(242, 118, 43, .1); }

.expander[data-open] .expander__head {
  background: rgba(242, 118, 43, .12);
  border-left-color: var(--lamp-orange);
}

.expander__mark {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 18px;
  color: var(--lamp-orange);
}

.expander__mark::before { content: "+"; }

.expander[data-open] .expander__mark::before { content: "–"; }

.expander__body {
  padding: 0 20px 20px 26px;
  font-size: 15.5px;
}

.expander__body[hidden] { display: none; }

.expander__body p + p { margin-top: 12px; }

/* ---- 图片容器基础规则（页面阶段放置图片） ---- */
.media {
  position: relative;
  display: block;
  overflow: hidden;
  aspect-ratio: 16 / 10;
  background: var(--night-blue);
  border: 2px solid var(--ink);
  box-shadow: var(--hard-shadow);
}

.media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(.85) contrast(1.06);
}

.media--wide { aspect-ratio: 21 / 9; }
.media--tall { aspect-ratio: 3 / 4; }

.grain::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: .4;
  background-image: radial-gradient(rgba(243, 237, 227, .16) 1px, transparent 1px);
  background-size: 3px 3px;
}

.media__caption {
  display: block;
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--lime);
}

/* ---- 桌面：侧轨常驻 ---- */
@media (min-width: 1025px) {
  body { padding-left: var(--rail-w); }

  .topbar { display: none; }

  .rail-scrim { display: none; }

  .rail {
    position: fixed;
    z-index: 40;
    width: var(--rail-w);
    transform: none;
    transition: none;
  }

  .rail::after {
    content: "";
    position: absolute;
    top: 0;
    bottom: 0;
    right: -12px;
    width: 10px;
    pointer-events: none;
    background: repeating-linear-gradient(-45deg, var(--ink) 0 5px, transparent 5px 10px);
    opacity: .85;
  }
}

/* ---- 平板与手机 ---- */
@media (max-width: 1024px) {
  .footer__top {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 36px 32px;
  }

  .footer__col--contact { grid-column: 1 / -1; }
}

@media (max-width: 900px) {
  .grid,
  .grid--5-7,
  .grid--4-8,
  .grid--3-9 { grid-template-columns: minmax(0, 1fr); }

  .section { padding: 48px 0; }
}

@media (max-width: 640px) {
  body { font-size: 15.5px; }

  .footer__top {
    grid-template-columns: minmax(0, 1fr);
    padding: 44px 18px 28px;
  }

  .footer__venue-groups { grid-template-columns: minmax(0, 1fr); }

  .footer__legal {
    padding: 18px 18px 28px;
    font-size: 11px;
  }

  .footer__year { margin-left: 0; }

  .wrap { padding: 0 18px; }

  .display--xl { letter-spacing: .06em; }

  .stat__value { font-size: clamp(2rem, 12vw, 3rem); }
}

@media (max-width: 420px) {
  .topbar__view { display: none; }

  .nav-toggle { margin-left: auto; }

  .topbar__brand-cn { font-size: 15.5px; }
}

/* ---- 动效尊重 ---- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }

  *,
  *::before,
  *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
  }
}