/* ============================================================
   AOA体育 · 赛场数据台 — 共享站点样式表 /assets/site.css
   骨架：展览画册 × 夜间数据指挥台
   ============================================================ */

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

html,
body,
h1, h2, h3, h4, h5, h6,
p, ul, ol, li, figure, figcaption, blockquote,
dl, dt, dd, fieldset, legend {
  margin: 0;
  padding: 0;
}

ul, ol { list-style: none; }

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

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

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

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

table {
  border-collapse: collapse;
  border-spacing: 0;
  width: 100%;
}

th {
  text-align: left;
  font-weight: 500;
}

hr {
  border: 0;
  height: 1px;
  background: var(--line);
}

/* ------------------------------------------------------------
   02 变量：明快运动色的面积分配
------------------------------------------------------------ */
:root {
  /* 底色与面板 */
  --ink: #0B2A21;          /* 夜草墨绿 · 全站主底 */
  --ink-deep: #061A14;     /* 更深的收束底 */
  --panel: #123B2E;        /* 面板深绿 · 卡片与导航 */
  --mid: #1E5C43;          /* 草皮中绿 · 分隔与斑马纹 */
  --grass: #4FBF7A;        /* 草皮高亮绿 · 刻度与正增长 */

  /* 高亮色 */
  --orange: #FF6A1A;       /* 警示橙 · CTA 与关键数字 */
  --yellow: #FFD23F;       /* 黄牌黄 */
  --red: #E23B2E;          /* 红牌红 */

  /* 主客对照 */
  --away: #35C4D8;         /* 客场冷青 */
  --home: #F0A63C;         /* 主场暖琥珀 */

  /* 文字与线 */
  --paper: #F4F7F5;
  --note: #8FA79B;
  --on-warm: #1A0E02;
  --on-cool: #04222A;

  --line: rgba(244, 247, 245, 0.13);
  --line-2: rgba(244, 247, 245, 0.26);
  --hair: rgba(244, 247, 245, 0.06);

  /* 形状 */
  --pill: 999px;
  --sharp: 3px;

  /* 当前口径强调色，由 <html data-scope> 驱动 */
  --scope-accent: var(--home);

  /* 字体 */
  --font-body: "PingFang SC", "HarmonyOS Sans SC", "Hiragino Sans GB",
    "Microsoft YaHei", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --font-mono: ui-monospace, "SFMono-Regular", "SF Mono", Menlo, Consolas,
    "Liberation Mono", "Courier New", monospace;

  /* 栅格 */
  --gutter: clamp(16px, 3vw, 40px);
  --maxw: 1440px;
}

:root[data-scope="home"] { --scope-accent: var(--home); }
:root[data-scope="away"] { --scope-accent: var(--away); }

/* ------------------------------------------------------------
   03 中文排版基础
------------------------------------------------------------ */
html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  background-color: var(--ink);
  color: var(--paper);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.75;
  letter-spacing: 0.012em;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

main { display: block; }

h1, h2, h3, h4, h5, h6 {
  font-weight: 300;
  line-height: 1.14;
  letter-spacing: 0.01em;
}

h1 {
  font-size: clamp(2.4rem, 6vw, 5rem);
  font-weight: 300;
  letter-spacing: 0.02em;
}

h2 {
  font-size: clamp(1.7rem, 3.2vw, 2.5rem);
  font-weight: 300;
}

h3 {
  font-size: clamp(1.12rem, 1.7vw, 1.35rem);
  font-weight: 400;
  line-height: 1.3;
}

h4 {
  font-size: 1rem;
  font-weight: 500;
  line-height: 1.4;
}

p, li, dd, figcaption { text-wrap: pretty; }
h1, h2, h3 { text-wrap: balance; }

strong, b { font-weight: 600; }

::selection {
  background: var(--orange);
  color: var(--on-warm);
}

/* 焦点反馈 —— 键盘可用性 */
:focus-visible {
  outline: 2px solid var(--orange);
  outline-offset: 2px;
}

a:focus-visible,
button:focus-visible,
[tabindex]:focus-visible {
  outline: 2px solid var(--orange);
  outline-offset: 2px;
  box-shadow: 0 0 0 4px rgba(255, 106, 26, 0.2);
}

/* 降低动效偏好 */
@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;
    scroll-behavior: auto !important;
  }
}

/* ------------------------------------------------------------
   04 布局工具
------------------------------------------------------------ */
.wrap {
  width: 100%;
  max-width: calc(var(--maxw) + var(--gutter) * 2);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.wrap--narrow {
  max-width: calc(820px + var(--gutter) * 2);
}

.section {
  position: relative;
  padding-block: clamp(48px, 7vw, 96px);
}

.section--tight {
  padding-block: clamp(28px, 4vw, 56px);
}

.section--air {
  padding-block: clamp(72px, 11vw, 160px);
}

.grid {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: var(--gap, clamp(16px, 2vw, 32px));
}

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

@media (max-width: 900px) {
  .grid--2,
  .grid--3 { grid-template-columns: minmax(0, 1fr); }
}

/* ------------------------------------------------------------
   05 文字层级组件
------------------------------------------------------------ */
.num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-feature-settings: "tnum" 1;
  letter-spacing: -0.01em;
}

.note {
  font-size: 12.5px;
  line-height: 1.7;
  letter-spacing: 0.05em;
  color: var(--note);
}

.chapter-index {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.24em;
  color: var(--note);
}

.chapter-index::after {
  content: "";
  flex: 1 1 auto;
  height: 1px;
  background: var(--line-2);
}

/* ------------------------------------------------------------
   06 按钮
------------------------------------------------------------ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 18px;
  border: 1px solid var(--line-2);
  border-radius: var(--pill);
  background: transparent;
  color: var(--paper);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.07em;
  white-space: nowrap;
  transition: transform 0.16s ease, background-color 0.18s ease,
    border-color 0.18s ease, color 0.18s ease;
}

.btn--cta {
  background: var(--orange);
  border-color: var(--orange);
  color: var(--on-warm);
  font-weight: 700;
}

.btn--cta:hover {
  background: #FF7E36;
  border-color: #FF7E36;
  transform: translateY(-2px);
}

.btn--ghost:hover {
  border-color: var(--grass);
  color: var(--grass);
  transform: translateY(-2px);
}

.btn--quiet {
  border-color: transparent;
  padding-inline: 6px;
  color: var(--grass);
}

.btn--quiet:hover { color: var(--paper); }

/* ------------------------------------------------------------
   07 面包屑（页面主体使用）
------------------------------------------------------------ */
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 12.5px;
  letter-spacing: 0.08em;
  color: var(--note);
}

.breadcrumb__sep { color: var(--mid); }

.breadcrumb__link {
  color: rgba(244, 247, 245, 0.7);
  transition: color 0.18s ease;
}

.breadcrumb__link:hover { color: var(--grass); }

.breadcrumb__current { color: var(--paper); }

/* ------------------------------------------------------------
   08 媒体容器（页面阶段放图片占位）
------------------------------------------------------------ */
.media {
  position: relative;
  display: block;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--sharp);
  background-color: var(--panel);
  background-image: repeating-linear-gradient(
    90deg,
    rgba(79, 191, 122, 0.06) 0 34px,
    rgba(79, 191, 122, 0) 34px 68px
  );
}

.media > img,
.media > svg,
.media > video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.media--16x9 { aspect-ratio: 16 / 9; }
.media--21x9 { aspect-ratio: 21 / 9; }
.media--4x3 { aspect-ratio: 4 / 3; }
.media--1x1 { aspect-ratio: 1 / 1; }
.media--tall { aspect-ratio: 3 / 4; }

.media__caption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 26px 14px 10px;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--paper);
  background: linear-gradient(
    180deg,
    rgba(6, 26, 20, 0) 0%,
    rgba(6, 26, 20, 0.88) 78%
  );
}

/* ------------------------------------------------------------
   09 页头：悬浮胶囊浮岛
------------------------------------------------------------ */
.skip-link {
  position: absolute;
  left: 16px;
  top: -72px;
  z-index: 320;
  padding: 10px 20px;
  border-radius: var(--pill);
  background: var(--orange);
  color: var(--on-warm);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.06em;
  transition: top 0.18s ease;
}

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

.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 2px;
  transform: scaleX(0);
  transform-origin: 0 50%;
  background: linear-gradient(
    90deg,
    var(--grass) 0%,
    var(--scope-accent) 62%,
    var(--orange) 100%
  );
  z-index: 240;
  pointer-events: none;
  will-change: transform;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 120;
  padding: clamp(10px, 1.4vw, 18px) var(--gutter) 10px;
  background: linear-gradient(
    180deg,
    rgba(11, 42, 33, 1) 0%,
    rgba(11, 42, 33, 0.95) 58%,
    rgba(11, 42, 33, 0) 100%
  );
}

.site-header__shell {
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
}

.site-header__bar {
  display: flex;
  flex-wrap: nowrap;
  align-items: center;
  gap: clamp(10px, 1.4vw, 22px);
  padding: 7px 7px 7px clamp(12px, 1.4vw, 20px);
  border: 1px solid var(--line);
  border-radius: var(--pill);
  background: rgba(18, 59, 46, 0.9);
  box-shadow: 0 22px 46px -30px rgba(0, 0, 0, 0.95),
    inset 0 1px 0 rgba(244, 247, 245, 0.05);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
}

/* 品牌 */
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex: 0 0 auto;
  padding: 4px 6px;
  border-radius: var(--sharp);
}

.brand__mark {
  position: relative;
  flex: 0 0 auto;
  width: 28px;
  height: 28px;
  border: 1px solid rgba(79, 191, 122, 0.5);
  background: repeating-linear-gradient(
    90deg,
    rgba(30, 92, 67, 0.95) 0 4px,
    rgba(18, 59, 46, 0.95) 4px 8px
  );
}

.brand__mark::before {
  content: "";
  position: absolute;
  left: 50%;
  top: 5px;
  bottom: 5px;
  width: 1px;
  background: rgba(244, 247, 245, 0.35);
}

.brand__mark::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  width: 6px;
  height: 6px;
  margin: -3px 0 0 -3px;
  border-radius: 50%;
  background: var(--scope-accent);
}

.brand__text {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}

.brand__name {
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.1em;
}

.brand__sub {
  font-size: 10.5px;
  letter-spacing: 0.24em;
  color: var(--note);
}

/* 导航胶囊 */
.nav {
  display: flex;
  flex: 1 1 auto;
  justify-content: center;
  min-width: 0;
}

.nav__list {
  display: inline-flex;
  align-items: center;
  gap: 2px;
  padding: 4px;
  border: 1px solid var(--hair);
  border-radius: var(--pill);
  background: rgba(11, 42, 33, 0.6);
}

.nav__item { display: flex; }

.nav__link {
  display: block;
  padding: 8px 14px;
  border-radius: var(--pill);
  font-size: 14.5px;
  letter-spacing: 0.05em;
  color: rgba(244, 247, 245, 0.74);
  transition: background-color 0.18s ease, color 0.18s ease;
}

.nav__link:hover {
  background: rgba(79, 191, 122, 0.14);
  color: var(--paper);
}

.nav__link[aria-current="page"] {
  background: var(--scope-accent);
  color: var(--on-warm);
  font-weight: 600;
}

/* 页头工具区 */
.site-header__tools {
  display: flex;
  align-items: center;
  gap: 8px;
  flex: 0 0 auto;
  margin-left: auto;
}

.scope {
  display: inline-flex;
  padding: 3px;
  border: 1px solid var(--line);
  border-radius: var(--pill);
  background: rgba(11, 42, 33, 0.7);
}

.scope__btn {
  padding: 6px 12px;
  border-radius: var(--pill);
  font-size: 12.5px;
  font-weight: 500;
  letter-spacing: 0.12em;
  color: var(--note);
  transition: background-color 0.18s ease, color 0.18s ease;
}

.scope__btn:hover {
  background: rgba(244, 247, 245, 0.08);
  color: var(--paper);
}

.scope__btn[data-scope-toggle="home"][aria-pressed="true"] {
  background: var(--home);
  color: var(--on-warm);
  font-weight: 700;
}

.scope__btn[data-scope-toggle="away"][aria-pressed="true"] {
  background: var(--away);
  color: var(--on-cool);
  font-weight: 700;
}

/* 移动菜单按钮 */
.nav-toggle {
  display: none;
  align-items: center;
  gap: 9px;
  padding: 8px 14px;
  border: 1px solid var(--line-2);
  border-radius: var(--pill);
  font-size: 13px;
  letter-spacing: 0.12em;
  color: var(--paper);
  transition: border-color 0.18s ease, color 0.18s ease;
}

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

.nav-toggle__bars {
  position: relative;
  width: 16px;
  height: 10px;
  flex: 0 0 auto;
}

.nav-toggle__bars::before,
.nav-toggle__bars::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  height: 1.5px;
  background: currentColor;
  transition: transform 0.2s ease;
}

.nav-toggle__bars::before { top: 0; }
.nav-toggle__bars::after { bottom: 0; }

.site-header[data-open] .nav-toggle__bars::before {
  transform: translateY(4.25px) rotate(45deg);
}

.site-header[data-open] .nav-toggle__bars::after {
  transform: translateY(-4.25px) rotate(-45deg);
}

/* 样本区间提示条 */
.site-header__meta {
  padding: 8px 22px 0;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--note);
}

.site-header__meta-key {
  display: inline-block;
  margin-right: 8px;
  padding: 2px 9px;
  border: 1px solid rgba(255, 210, 63, 0.42);
  border-radius: var(--pill);
  color: var(--yellow);
  font-size: 11px;
  letter-spacing: 0.14em;
}

/* ------------------------------------------------------------
   10 页脚
------------------------------------------------------------ */
.site-footer {
  position: relative;
  margin-top: clamp(72px, 12vw, 160px);
  border-top: 1px solid var(--line);
  background: var(--ink-deep);
  overflow: hidden;
}

.site-footer::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 260px;
  background: repeating-linear-gradient(
    90deg,
    rgba(79, 191, 122, 0.05) 0 72px,
    rgba(79, 191, 122, 0) 72px 144px
  );
  pointer-events: none;
}

.site-footer__inner {
  position: relative;
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding: clamp(48px, 7vw, 88px) var(--gutter) 0;
}

.site-footer__grid {
  display: grid;
  grid-template-columns:
    minmax(180px, 1.5fr)
    repeat(3, minmax(120px, 1fr))
    minmax(220px, 1.6fr);
  gap: clamp(24px, 3.4vw, 56px);
}

.site-footer__brand .brand { padding: 0; }

.site-footer__tagline {
  margin-top: 14px;
  max-width: 30ch;
  font-size: 14px;
  line-height: 1.7;
  color: var(--note);
}

.footer-nav__title {
  padding-bottom: 12px;
  margin-bottom: 14px;
  border-bottom: 1px solid var(--line);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.24em;
  color: var(--paper);
}

.footer-nav__list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-nav__link {
  position: relative;
  display: inline-block;
  padding-left: 15px;
  font-size: 14px;
  line-height: 1.5;
  color: rgba(244, 247, 245, 0.72);
  transition: color 0.18s ease;
}

.footer-nav__link::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.78em;
  width: 6px;
  height: 1px;
  background: var(--mid);
  transition: width 0.18s ease, background-color 0.18s ease;
}

.footer-nav__link:hover { color: var(--grass); }

.footer-nav__link:hover::before {
  width: 10px;
  background: var(--grass);
}

.contact-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.contact-list__item {
  display: flex;
  gap: 10px;
  font-size: 13.5px;
  line-height: 1.6;
}

.contact-list__key {
  flex: 0 0 auto;
  min-width: 42px;
  color: var(--note);
  letter-spacing: 0.12em;
}

.contact-list__val {
  color: rgba(244, 247, 245, 0.86);
  word-break: break-word;
}

.contact-list__val--mono {
  font-family: var(--font-mono);
  letter-spacing: 0.02em;
}

.site-footer__note {
  margin-top: 16px;
  max-width: 42ch;
  font-size: 12px;
  line-height: 1.7;
  color: var(--note);
}

.site-footer__bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px clamp(16px, 3vw, 40px);
  margin-top: clamp(40px, 6vw, 72px);
  padding: 22px 0 30px;
  border-top: 1px solid var(--line);
  font-size: 12.5px;
  letter-spacing: 0.08em;
  color: var(--note);
}

.site-footer__copy { margin-right: auto; }

.site-footer__icp {
  font-family: var(--font-mono);
  letter-spacing: 0.06em;
}

.site-footer__legal {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
}

.site-footer__legal-link {
  color: rgba(244, 247, 245, 0.66);
  transition: color 0.18s ease;
}

.site-footer__legal-link:hover { color: var(--grass); }

/* ------------------------------------------------------------
   11 响应式：平板与手机
------------------------------------------------------------ */
@media (max-width: 1180px) {
  .site-footer__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .site-footer__brand,
  .site-footer__contact { grid-column: 1 / -1; }

  .site-footer__contact { max-width: 640px; }
}

@media (max-width: 1080px) {
  .site-header { padding-bottom: 6px; }

  .site-header__bar {
    flex-wrap: wrap;
    border-radius: 22px;
    padding: 8px 10px;
  }

  .nav-toggle { display: inline-flex; }

  .nav {
    display: none;
    flex: 1 1 100%;
    order: 3;
    justify-content: stretch;
    margin-top: 8px;
    padding-top: 10px;
    border-top: 1px solid var(--line);
  }

  .site-header[data-open] .nav { display: flex; }

  .nav__list {
    flex: 1 1 auto;
    flex-direction: column;
    align-items: stretch;
    width: 100%;
    gap: 2px;
    padding: 0;
    border: 0;
    border-radius: 0;
    background: none;
  }

  .nav__item { width: 100%; }

  .nav__link {
    padding: 13px 16px;
    border-radius: 10px;
    font-size: 16px;
    letter-spacing: 0.06em;
  }

  .site-header__meta { padding-inline: 6px; }
}

@media (max-width: 900px) {
  body { font-size: 16px; }

  .site-header__meta {
    font-size: 11.5px;
    letter-spacing: 0.04em;
  }
}

@media (max-width: 720px) {
  .site-footer__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 600px) {
  .nav-toggle { padding: 8px 11px; }
  .nav-toggle__label {
    position: absolute;
    width: 1px;
    height: 1px;
    margin: -1px;
    padding: 0;
    overflow: hidden;
    clip: rect(0 0 0 0);
    white-space: nowrap;
    border: 0;
  }

  .scope__btn {
    padding: 6px 9px;
    font-size: 11.5px;
    letter-spacing: 0.08em;
  }

  .brand__sub { display: none; }

  .brand__name { font-size: 14px; }

  .btn--cta {
    padding: 9px 13px;
    font-size: 13px;
    letter-spacing: 0.04em;
  }
}

@media (max-width: 460px) {
  .site-footer__grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .site-footer__bottom {
    flex-direction: column;
    align-items: flex-start;
  }

  .site-footer__copy { margin-right: 0; }
}
