/* =========================================================
   site.css — 日搏体育中国站 共享样式表
   夜间球场数据看台 / 深墨绿底 + 暖白 + 荧光橙 + 电光蓝
   ========================================================= */

/* ---------- 1. Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 9rem;
}

body {
  margin: 0;
  background: var(--ink);
  color: var(--paper);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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%; height: auto; }
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; color: inherit; }
button { background: none; border: 0; padding: 0; cursor: pointer; }
table { border-collapse: collapse; width: 100%; }

/* ---------- 2. 变量 ---------- */
:root {
  /* 品牌色 */
  --ink: #07130F;
  --ink-2: #0E2A22;
  --ink-3: #17392E;
  --paper: #F6F2E7;
  --paper-2: #C9C4B4;
  --paper-3: #E9E4D8;
  --deep: #0B1B16;
  --orange: #FF6A18;
  --blue: #35D2FF;
  --green: #7BE5A8;
  --gold: #E8C86A;

  /* 线条 */
  --line: rgba(246, 242, 231, .14);
  --line-strong: rgba(246, 242, 231, .26);
  --line-dark: rgba(11, 27, 22, .16);

  /* 字体 */
  --font-head: "Barlow Condensed", "Oswald", "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-body: "Noto Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, SFMono-Regular, Consolas, "Courier New", monospace;

  /* 尺度 */
  --wrap: 1240px;
  --gap: clamp(1rem, 2.4vw, 1.75rem);
  --radius: 2px;
  --ease: cubic-bezier(.22, .61, .36, 1);
  --shadow: 0 18px 40px -28px rgba(0, 0, 0, .85);

  /* 字号阶梯 12/14/16/20/28/40/56/72/88 */
  --fs-12: .75rem;
  --fs-14: .875rem;
  --fs-16: 1rem;
  --fs-20: 1.25rem;
  --fs-28: clamp(1.375rem, 2.4vw, 1.75rem);
  --fs-40: clamp(1.75rem, 3.6vw, 2.5rem);
  --fs-56: clamp(2.25rem, 5.4vw, 3.5rem);
  --fs-72: clamp(2.75rem, 7vw, 4.5rem);
  --fs-88: clamp(3.25rem, 9vw, 5.5rem);
}

/* ---------- 3. 中文排版与标题 ---------- */
h1, h2, h3, h4, h5, h6,
.h1, .h2, .h3 {
  font-family: var(--font-head);
  font-weight: 700;
  line-height: 1.06;
  letter-spacing: -.02em;
  color: inherit;
}

h1, .h1 { font-size: var(--fs-72); }
h2, .h2 { font-size: var(--fs-40); }
h3, .h3 { font-size: var(--fs-28); }

p { max-width: 68ch; }

.mono {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  letter-spacing: 0;
}

/* ---------- 4. 通用原子 ---------- */
.wrap {
  width: 100%;
  max-width: var(--wrap);
  margin-inline: auto;
  padding-inline: clamp(1rem, 4vw, 2rem);
}

.section { padding-block: clamp(2.5rem, 6vw, 4.5rem); }

.section--paper {
  background: var(--paper);
  color: var(--deep);
}
.section--paper .lede { color: #35463f; }
.section--paper .eyebrow { color: #a5450b; }
.section--paper a:not(.btn) {
  color: var(--deep);
  border-bottom: 1px solid rgba(11, 27, 22, .35);
}
.section--paper a:not(.btn):hover { border-bottom-color: var(--orange); }

.eyebrow {
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: .18em;
  color: var(--orange);
  display: block;
}

.lede {
  font-size: clamp(1.0625rem, 1.6vw, 1.25rem);
  line-height: 1.8;
  color: var(--paper-2);
  max-width: 62ch;
}

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

.stack > * + * { margin-top: var(--stack-gap, 1.1rem); }

/* ---------- 5. 焦点与跳转 ---------- */
:focus-visible {
  outline: 2px solid var(--blue);
  outline-offset: 2px;
}

.skip-link {
  position: absolute;
  left: 1rem;
  top: -5rem;
  z-index: 400;
  background: var(--orange);
  color: var(--deep);
  font-weight: 700;
  padding: .6rem 1.1rem;
  border-radius: var(--radius);
  transition: top .2s var(--ease);
}
.skip-link:focus { top: 1rem; }

/* ---------- 6. 页头 ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 200;
  background: rgba(7, 19, 15, .95);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}

.masthead { padding-block: 0; }

.masthead__top {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 1rem;
  padding-block: 1.1rem .9rem;
}

.masthead__update {
  display: flex;
  align-items: center;
  gap: .55rem;
  max-width: none;
  font-size: var(--fs-12);
  color: var(--paper-2);
  letter-spacing: .02em;
}

.pulse-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--green);
  flex: 0 0 auto;
  animation: pulse 2.6s ease-out infinite;
}

@keyframes pulse {
  0%   { box-shadow: 0 0 0 0 rgba(123, 229, 168, .55); }
  70%  { box-shadow: 0 0 0 8px rgba(123, 229, 168, 0); }
  100% { box-shadow: 0 0 0 0 rgba(123, 229, 168, 0); }
}

.brand {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: .25rem;
  text-align: center;
}

.brand__name {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: clamp(1.5rem, 3.2vw, 2.4rem);
  line-height: 1;
  letter-spacing: .14em;
  text-indent: .14em;
  color: var(--paper);
  padding-bottom: .3rem;
  border-bottom: 2px solid var(--orange);
}

.brand__line {
  font-size: .6875rem;
  letter-spacing: .3em;
  text-indent: .3em;
  color: var(--paper-2);
}

.masthead__tools {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: .8rem;
  font-size: var(--fs-12);
}

.tool-link {
  color: var(--paper-2);
  border-bottom: 1px solid transparent;
  transition: color .18s var(--ease), border-color .18s var(--ease);
}
.tool-link:hover { color: var(--blue); border-bottom-color: var(--blue); }

.lang-chip {
  font-family: var(--font-mono);
  font-size: .6875rem;
  letter-spacing: .08em;
  padding: .18rem .5rem;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  color: var(--paper-2);
  white-space: nowrap;
}

.masthead__bottom {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  border-top: 1px solid var(--line);
  padding-block: .6rem;
}

.mainnav {
  flex: 1 1 auto;
  display: flex;
  justify-content: center;
}

.mainnav__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: clamp(.9rem, 2.4vw, 2rem);
}

.mainnav__link {
  display: inline-block;
  font-family: var(--font-head);
  font-size: 1.0625rem;
  font-weight: 600;
  letter-spacing: .09em;
  color: var(--paper-2);
  padding-block: .35rem;
  border-bottom: 2px solid transparent;
  transition: color .18s var(--ease), border-color .18s var(--ease);
}
.mainnav__link:hover { color: var(--paper); }
.mainnav__link[aria-current="page"] {
  color: var(--orange);
  border-bottom-color: var(--orange);
}

.masthead__cta {
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
}

.nav-toggle {
  display: none;
  align-items: center;
  gap: .6rem;
  font-family: var(--font-head);
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: .1em;
  color: var(--paper);
  padding: .4rem .2rem;
  border-radius: var(--radius);
}

.nav-toggle__bars {
  display: grid;
  gap: 4px;
  width: 20px;
  flex: 0 0 auto;
}
.nav-toggle__bars span {
  display: block;
  height: 2px;
  background: var(--orange);
  transition: transform .2s var(--ease), opacity .2s var(--ease);
}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:nth-child(1) { transform: translateY(6px) 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(-6px) rotate(-45deg); }

.nav-toggle__label { white-space: nowrap; }

/* ---------- 7. 按钮 / 标签 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .5rem;
  font-family: var(--font-head);
  font-weight: 600;
  font-size: var(--fs-16);
  letter-spacing: .08em;
  line-height: 1.2;
  padding: .62rem 1.2rem;
  border: 1px solid transparent;
  border-radius: var(--radius);
  cursor: pointer;
  transition: background-color .18s var(--ease), color .18s var(--ease),
              border-color .18s var(--ease), transform .18s var(--ease);
}

.btn--primary {
  background: var(--orange);
  color: var(--deep);
  font-weight: 700;
}
.btn--primary:hover { background: #ff8339; }

.btn--ghost {
  border-color: var(--line-strong);
  color: var(--paper);
}
.btn--ghost:hover { border-color: var(--orange); color: var(--orange); }

.btn--blue {
  background: var(--blue);
  color: #04121a;
  font-weight: 700;
}
.btn--blue:hover { background: #6ee0ff; }

.btn--sm { padding: .42rem .9rem; font-size: var(--fs-14); }

.tag {
  display: inline-flex;
  align-items: center;
  gap: .35rem;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: .04em;
  padding: .18rem .55rem;
  border: 1px solid currentColor;
  border-radius: var(--radius);
  white-space: nowrap;
}
.tag--league { color: var(--orange); background: rgba(255, 106, 24, .1); }
.tag--team   { color: var(--blue);   background: rgba(53, 210, 255, .1); }
.tag--live   { color: var(--green);  background: rgba(123, 229, 168, .1); }
.tag--gold   { color: var(--gold);   background: rgba(232, 200, 106, .1); }

/* ---------- 8. 章节色带 ---------- */
.chapter {
  display: flex;
  align-items: baseline;
  gap: .9rem;
  border-top: 2px solid var(--orange);
  padding-top: .7rem;
  margin-bottom: 1.6rem;
}

.chapter__num {
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: .16em;
  color: var(--orange);
}

.chapter__title {
  font-family: var(--font-head);
  font-size: var(--fs-40);
  font-weight: 700;
  letter-spacing: -.01em;
  line-height: 1.1;
}

/* ---------- 9. 面包屑 ---------- */
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .1rem;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  color: var(--paper-2);
  padding-block: .9rem;
}
.breadcrumb li { display: flex; align-items: center; }
.breadcrumb li + li::before {
  content: "/";
  margin-inline: .5rem;
  color: rgba(246, 242, 231, .32);
}
.breadcrumb a:hover { color: var(--blue); }

/* ---------- 10. 网格与卡面 ---------- */
.grid { display: grid; gap: var(--gap); }
.grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid--4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.grid--7-5 { grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); }
.grid--5-7 { grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); }

.card {
  position: relative;
  background: var(--ink-3);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.25rem;
  transition: border-color .18s var(--ease), transform .18s var(--ease);
}
.card:hover { border-color: var(--orange); transform: translateY(-3px); }

.card__title {
  font-family: var(--font-head);
  font-size: var(--fs-20);
  font-weight: 700;
  letter-spacing: -.01em;
  line-height: 1.25;
  margin-bottom: .35rem;
}

/* ---------- 11. 数字看板 ---------- */
.stat {
  display: flex;
  flex-direction: column;
  gap: .25rem;
  padding: .9rem 1rem;
  border-left: 2px solid var(--orange);
  background: rgba(23, 57, 46, .55);
  border-radius: 0 var(--radius) var(--radius) 0;
}

.stat__value {
  font-family: var(--font-mono);
  font-size: clamp(1.5rem, 3vw, 2.25rem);
  font-weight: 600;
  line-height: 1;
  color: var(--paper);
}

.stat__label {
  font-size: var(--fs-12);
  color: var(--paper-2);
  letter-spacing: .04em;
}

/* ---------- 12. 表格 ---------- */
.data-table {
  width: 100%;
  font-size: .9375rem;
}

.data-table th {
  position: sticky;
  top: 0;
  z-index: 1;
  background: var(--ink-3);
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  font-weight: 500;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--paper-2);
  text-align: left;
  padding: .7rem .8rem;
  border-bottom: 1px solid var(--line-strong);
}

.data-table td {
  padding: .7rem .8rem;
  border-bottom: 1px solid var(--line);
  vertical-align: middle;
}

.data-table tbody tr:hover td { background: rgba(53, 210, 255, .05); }

.section--paper .data-table th {
  background: var(--paper-3);
  color: var(--deep);
  border-bottom-color: var(--line-dark);
}
.section--paper .data-table td { border-bottom-color: var(--line-dark); }

/* ---------- 13. 分段控件与标签页 ---------- */
.segmented {
  display: inline-flex;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  overflow: hidden;
}

.segmented__btn {
  font-family: var(--font-head);
  font-size: .9375rem;
  font-weight: 600;
  letter-spacing: .06em;
  padding: .45rem .95rem;
  color: var(--paper-2);
  transition: color .18s var(--ease), background-color .18s var(--ease);
}
.segmented__btn:hover { color: var(--paper); }
.segmented__btn[aria-selected="true"] {
  background: var(--orange);
  color: var(--deep);
}

.tabs { display: block; }

.tablist {
  display: flex;
  flex-wrap: wrap;
  gap: .25rem;
  border-bottom: 1px solid var(--line);
  margin-bottom: 1.5rem;
}

.tab {
  position: relative;
  font-family: var(--font-head);
  font-size: 1.0625rem;
  font-weight: 600;
  letter-spacing: .06em;
  padding: .6rem 1rem;
  margin-bottom: -1px;
  color: var(--paper-2);
  border-bottom: 2px solid transparent;
  transition: color .18s var(--ease), border-color .18s var(--ease);
}
.tab:hover { color: var(--paper); }
.tab[aria-selected="true"] {
  color: var(--orange);
  border-bottom-color: var(--orange);
}

.tabpanel[hidden] { display: none; }
.tabpanel { animation: tabFade .18s var(--ease); }

@keyframes tabFade {
  from { opacity: 0; }
  to   { opacity: 1; }
}

/* ---------- 14. 图片容器 ---------- */
.media {
  position: relative;
  overflow: hidden;
  background: var(--ink-3);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}
.media img { width: 100%; height: 100%; object-fit: cover; }

.media--16x9 { aspect-ratio: 16 / 9; }
.media--4x3  { aspect-ratio: 4 / 3; }
.media--3x4  { aspect-ratio: 3 / 4; }
.media--1x1  { aspect-ratio: 1 / 1; }

.media__ph {
  display: grid;
  place-items: center;
  width: 100%;
  height: 100%;
  min-height: 100%;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: .12em;
  color: rgba(246, 242, 231, .38);
  background: repeating-linear-gradient(
    135deg,
    var(--ink-3) 0 12px,
    rgba(14, 42, 34, .9) 12px 24px
  );
}

/* ---------- 15. 页脚 ---------- */
.site-footer {
  margin-top: clamp(2rem, 5vw, 4rem);
  background: var(--ink-2);
  border-top: 1px solid var(--line);
  color: var(--paper-2);
}

.footer__grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: clamp(1.5rem, 3vw, 2.5rem);
  padding-block: clamp(2rem, 4vw, 3rem) clamp(1.5rem, 3vw, 2.25rem);
}

.footer__brand { display: flex; flex-direction: column; gap: .85rem; }

.brand--footer {
  align-items: flex-start;
  text-align: left;
  gap: .3rem;
}
.brand--footer .brand__name { font-size: 1.6rem; letter-spacing: .12em; text-indent: .12em; }
.brand--footer .brand__line { letter-spacing: .18em; text-indent: .18em; }

.footer__desc {
  font-size: var(--fs-14);
  color: var(--paper-2);
  max-width: 32ch;
}

.footer__contact {
  font-size: var(--fs-12);
  color: var(--paper-2);
  letter-spacing: .02em;
  word-break: break-all;
  max-width: none;
}

.footer__title {
  font-family: var(--font-head);
  font-size: var(--fs-16);
  font-weight: 700;
  letter-spacing: .14em;
  color: var(--orange);
  margin-bottom: .95rem;
}

.footer__list li + li { margin-top: .5rem; }

.footer__list a {
  font-size: var(--fs-14);
  color: var(--paper-2);
  border-bottom: 1px solid transparent;
  transition: color .18s var(--ease), border-color .18s var(--ease);
}
.footer__list a:hover { color: var(--paper); border-bottom-color: var(--blue); }

.footer__legal {
  border-top: 1px solid var(--line);
  padding-block: 1rem 1.5rem;
}

.footer__legal-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .5rem 1.5rem;
  font-size: var(--fs-12);
}

.footer__copy { max-width: none; color: var(--paper-2); }
.footer__icp { max-width: none; color: var(--paper-2); }

.footer__legal-links {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem 1.2rem;
  margin-left: auto;
}
.footer__legal-links a {
  color: var(--paper-2);
  border-bottom: 1px solid transparent;
  transition: color .18s var(--ease), border-color .18s var(--ease);
}
.footer__legal-links a:hover { color: var(--blue); border-bottom-color: var(--blue); }

/* ---------- 16. 滚动进度与返回顶部 ---------- */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 2px;
  width: 0;
  z-index: 300;
  background: linear-gradient(90deg, var(--orange), var(--blue));
  pointer-events: none;
}

.to-top {
  position: fixed;
  right: clamp(.75rem, 2vw, 1.5rem);
  bottom: clamp(.75rem, 2vw, 1.5rem);
  z-index: 250;
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  font-family: var(--font-mono);
  font-size: 1.05rem;
  color: var(--paper);
  background: var(--ink-3);
  border: 1px solid var(--line-strong);
  border-radius: 50%;
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: opacity .2s var(--ease), transform .2s var(--ease),
              visibility .2s linear, border-color .2s var(--ease), color .2s var(--ease);
}
.to-top.is-visible { opacity: 1; visibility: visible; transform: none; }
.to-top:hover { border-color: var(--orange); color: var(--orange); }

/* ---------- 17. 进入显现 ---------- */
html.js-reveal [data-reveal] {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity .55s var(--ease), transform .55s var(--ease);
  transition-delay: var(--reveal-delay, 0ms);
}
html.js-reveal [data-reveal].is-in {
  opacity: 1;
  transform: none;
}

/* ---------- 18. 响应式 ---------- */
@media (max-width: 1080px) {
  .masthead__cta { display: none; }
}

@media (max-width: 980px) {
  .footer__grid { grid-template-columns: 1fr 1fr; }
  .footer__brand { grid-column: 1 / -1; }
  .grid--4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .grid--7-5, .grid--5-7 { grid-template-columns: minmax(0, 1fr); }
}

@media (max-width: 900px) {
  html { scroll-padding-top: 6.5rem; }

  .masthead__top {
    grid-template-columns: 1fr auto 1fr;
    gap: .6rem;
    padding-block: .8rem .7rem;
  }

  .masthead__update { display: none; }
  .masthead__tools .tool-link { display: none; }

  .brand__name { font-size: 1.45rem; letter-spacing: .1em; text-indent: .1em; }
  .brand__line { display: none; }

  .masthead__bottom {
    justify-content: flex-start;
    padding-block: .5rem;
  }

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

  .mainnav {
    position: absolute;
    left: 0;
    right: 0;
    top: 100%;
    display: none;
    background: var(--ink-2);
    border-top: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
    box-shadow: var(--shadow);
    padding-block: .5rem;
  }
  .mainnav[data-open] { display: block; }

  .mainnav__list {
    flex-direction: column;
    align-items: stretch;
    justify-content: flex-start;
    gap: 0;
  }

  .mainnav__link {
    display: block;
    padding: .85rem 1.1rem;
    font-size: 1.15rem;
    letter-spacing: .08em;
    border-bottom: 1px solid rgba(246, 242, 231, .08);
  }
  .mainnav__link[aria-current="page"] {
    border-bottom-color: rgba(246, 242, 231, .08);
    box-shadow: inset 3px 0 0 0 var(--orange);
  }

  .grid--2, .grid--3, .grid--4 { grid-template-columns: minmax(0, 1fr); }
  .footer__legal-links { margin-left: 0; }
}

@media (max-width: 560px) {
  .footer__grid { grid-template-columns: minmax(0, 1fr); gap: 1.75rem; }
  .chapter { flex-wrap: wrap; gap: .5rem; }
  .data-table { font-size: .875rem; }
}

/* ---------- 19. 降低动效 ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }

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

  .pulse-dot { animation: none; }
  html.js-reveal [data-reveal] { opacity: 1; transform: none; }
  .scroll-progress { display: none; }
}