/* ============================================================
   八大胜体育赛 — /assets/site.css
   共享层：重置 / 变量 / 中文排版 / 刊头 / 页脚 / 基础组件
   页面特色布局由各页专属 CSS 承接
   ============================================================ */

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

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

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

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

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

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

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

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

/* ---------- 2. 变量 ---------- */
:root {
  /* 色板 */
  --night: #0A1A2A;
  --ink: #0F3029;
  --paper: #F2EFE6;
  --red: #E23A2E;
  --yellow: #F5C231;
  --gold: #C6A14B;
  --graphite: #24303D;
  --stripe: #16232F;
  --mist: #93A2B0;
  --chalk: #FBF8F0;

  /* 字体 */
  --font-display: "Arial Narrow", "Helvetica Neue Condensed", "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-index: "Helvetica Neue", "Segoe UI", "Noto Sans SC", "PingFang SC", system-ui, sans-serif;
  --font-body: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
  --font-mono: "JetBrains Mono", "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;

  /* 字号 */
  --fs-body: 17px;
  --fs-small: 14px;
  --fs-label: 12px;
  --fs-sub: 22px;
  --fs-section: clamp(28px, 4.2vw, 44px);
  --fs-index: clamp(96px, 13vw, 180px);

  /* 尺寸 */
  --wrap: 1240px;
  --gutter: clamp(16px, 4vw, 40px);
  --radius: 2px;

  /* 动效 */
  --ease: cubic-bezier(.22, .8, .2, 1);
  --dur: .42s;
}

/* ---------- 3. 中文排版基线 ---------- */
body {
  font-family: var(--font-body);
  font-size: var(--fs-body);
  font-weight: 400;
  line-height: 1.75;
  color: var(--chalk);
  background-color: var(--night);
  background-image:
    linear-gradient(180deg, rgba(15, 48, 41, .55) 0, rgba(10, 26, 42, 0) 620px),
    repeating-linear-gradient(90deg, rgba(36, 48, 61, .28) 0 1px, transparent 1px 96px);
  background-repeat: no-repeat, repeat;
  -webkit-font-smoothing: antialiased;
}

@media (max-width: 720px) {
  body { font-size: 15.5px; line-height: 1.78; }
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 900;
  font-stretch: condensed;
  letter-spacing: -0.02em;
  line-height: 1.15;
  color: var(--chalk);
}

strong { font-weight: 700; color: var(--chalk); }

.mono, code, kbd, samp { font-family: var(--font-mono); letter-spacing: 0; }

::selection { background: var(--red); color: var(--chalk); }

:focus-visible {
  outline: 2px solid var(--yellow);
  outline-offset: 3px;
  border-radius: 1px;
}

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

#main-content { scroll-margin-top: 150px; }

/* ---------- 4. 容器与网格 ---------- */
.wrap {
  width: 100%;
  max-width: var(--wrap);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.wrap--wide { max-width: 1440px; }

.grid { display: grid; gap: var(--grid-gap, 22px); }

.grid--2 { grid-template-columns: 1fr; }
.grid--3 { grid-template-columns: 1fr; }
.grid--sidebar { grid-template-columns: 1fr; }

@media (min-width: 700px) {
  .grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .grid--3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (min-width: 1020px) {
  .grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .grid--sidebar { grid-template-columns: 1fr 3fr; gap: clamp(24px, 4vw, 56px); }
}

/* ---------- 5. 跳转链接 ---------- */
.skip-link {
  position: fixed;
  top: -120px;
  left: 12px;
  z-index: 400;
  padding: 12px 22px;
  background: var(--yellow);
  color: var(--night);
  font-size: var(--fs-small);
  font-weight: 700;
  letter-spacing: .08em;
  transition: top .22s var(--ease);
}

.skip-link:focus {
  top: 12px;
  outline-color: var(--chalk);
}

/* ---------- 6. 刊头 ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 120;
  background: var(--night);
  border-bottom: 1px solid var(--graphite);
  color: var(--chalk);
  transition: box-shadow .3s var(--ease), background-color .3s var(--ease);
}

.site-header[data-condensed] {
  box-shadow: 0 18px 36px rgba(0, 0, 0, .5);
  background: #091725;
}

.site-header::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent 0, rgba(198, 161, 75, .75) 16%, rgba(198, 161, 75, .75) 84%, transparent 100%);
  pointer-events: none;
}

.header-progress {
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--red), var(--yellow));
  transform: scaleX(0);
  transform-origin: 0 50%;
  z-index: 4;
  pointer-events: none;
}

.header-inner {
  width: 100%;
  max-width: 1440px;
  margin-inline: auto;
  padding-inline: var(--gutter);
  position: relative;
}

/* 工具轨 */
.header-rail {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 0;
  border-bottom: 1px solid rgba(36, 48, 61, .8);
  font-size: var(--fs-label);
  letter-spacing: .12em;
}

.rail-group {
  display: flex;
  align-items: center;
  gap: clamp(10px, 2.2vw, 26px);
}

.rail-link {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  color: var(--mist);
  padding: 3px 0;
  border-bottom: 1px solid transparent;
  transition: color .22s var(--ease), border-color .22s var(--ease);
}

.rail-link:hover { color: var(--chalk); border-bottom-color: var(--gold); }

.rail-link--alert {
  color: var(--chalk);
  padding: 5px 11px;
  background: var(--stripe);
  border: 1px solid var(--graphite);
  transition: border-color .22s var(--ease), background-color .22s var(--ease);
}

.rail-link--alert:hover {
  border-color: var(--red);
  background: rgba(226, 58, 46, .14);
}

.dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
}

.dot--red { background: var(--red); }
.dot--yellow { background: var(--yellow); }

/* 目录按钮 */
.nav-toggle {
  display: none;
  align-items: center;
  gap: 9px;
  padding: 6px 12px;
  background: var(--stripe);
  border: 1px solid var(--graphite);
  color: var(--chalk);
  font-size: var(--fs-label);
  letter-spacing: .12em;
  transition: border-color .22s var(--ease);
}

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

.nav-toggle__bars {
  position: relative;
  display: inline-block;
  width: 16px;
  height: 2px;
  background: var(--yellow);
}

.nav-toggle__bars::before,
.nav-toggle__bars::after {
  content: "";
  position: absolute;
  left: 0;
  width: 16px;
  height: 2px;
  background: var(--yellow);
}

.nav-toggle__bars::before { top: -5px; }
.nav-toggle__bars::after { top: 5px; }

/* 报头 */
.masthead {
  padding: clamp(18px, 3.2vw, 34px) 0 clamp(12px, 1.8vw, 18px);
  text-align: center;
  transition: padding .3s var(--ease);
}

.masthead__brand {
  font-family: var(--font-display);
  font-weight: 900;
  font-stretch: condensed;
  font-size: clamp(2.2rem, 6.4vw, 4.7rem);
  letter-spacing: -0.035em;
  line-height: .96;
}

.masthead__brand a {
  display: inline-block;
  padding-bottom: .04em;
  border-bottom: 2px solid rgba(198, 161, 75, .55);
  transition: color .24s var(--ease), border-color .24s var(--ease);
}

.masthead__brand a:hover { color: var(--paper); border-color: var(--gold); }

.masthead__meta {
  margin-top: 12px;
  display: flex;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px clamp(12px, 2.4vw, 24px);
  font-size: var(--fs-label);
  letter-spacing: .16em;
  color: var(--mist);
}

.masthead__tag {
  color: var(--gold);
  position: relative;
  padding-left: 14px;
}

.masthead__tag::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  width: 6px;
  height: 1px;
  background: var(--gold);
}

/* 导航 */
.site-nav { border-top: 1px solid rgba(36, 48, 61, .8); }

.site-nav__list {
  display: flex;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
  gap: clamp(6px, 2.2vw, 30px);
  padding-bottom: 8px;
}

.site-nav__link {
  position: relative;
  display: inline-block;
  padding: 9px 4px 12px;
  font-size: .95rem;
  letter-spacing: .06em;
  color: var(--mist);
  transition: color .22s var(--ease);
}

.site-nav__link::after {
  content: "";
  position: absolute;
  left: 4px; right: 4px; bottom: 5px;
  height: 2px;
  background: var(--red);
  transform: scaleX(0);
  transform-origin: 0 50%;
  transition: transform .28s var(--ease), background-color .28s var(--ease);
}

.site-nav__link:hover { color: var(--chalk); }
.site-nav__link:hover::after { transform: scaleX(1); }

.site-nav__link[aria-current="page"] {
  color: var(--chalk);
  font-weight: 600;
}

.site-nav__link[aria-current="page"]::after {
  transform: scaleX(1);
  background: var(--yellow);
}

/* 刊头收拢态 */
.site-header[data-condensed] .header-rail { padding: 7px 0; }

.site-header[data-condensed] .masthead {
  text-align: left;
  padding: 10px 0 12px;
}

.site-header[data-condensed] .masthead__brand {
  font-size: clamp(1.2rem, 2.4vw, 1.6rem);
  letter-spacing: -0.01em;
}

.site-header[data-condensed] .masthead__brand a { border-bottom-width: 1px; }

.site-header[data-condensed] .masthead__meta { display: none; }

.site-header[data-condensed] .site-nav { display: none; }

.site-header[data-condensed] .site-nav[data-open] {
  display: block;
  position: absolute;
  left: 0;
  right: 0;
  top: 100%;
  background: var(--night);
  border-top: 1px solid var(--graphite);
  border-bottom: 1px solid var(--graphite);
  box-shadow: 0 26px 44px rgba(0, 0, 0, .55);
  padding-inline: var(--gutter);
}

.site-header[data-condensed] .nav-toggle { display: inline-flex; }

/* ---------- 7. 移动端导航 ---------- */
@media (max-width: 920px) {
  .nav-toggle { display: inline-flex; }

  .site-nav {
    display: none;
    position: absolute;
    left: 0;
    right: 0;
    top: 100%;
    background: var(--night);
    border-top: 1px solid var(--graphite);
    border-bottom: 1px solid var(--graphite);
    box-shadow: 0 26px 44px rgba(0, 0, 0, .55);
    padding-inline: var(--gutter);
  }

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

  .site-nav__list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 6px 0 14px;
  }

  .site-nav__link {
    display: block;
    padding: 13px 2px;
    font-size: 1rem;
    border-bottom: 1px solid rgba(36, 48, 61, .6);
  }

  .site-nav__link::after { display: none; }

  .site-nav__link[aria-current="page"] {
    color: var(--yellow);
    border-bottom-color: rgba(245, 194, 49, .5);
  }

  .site-nav__link[aria-current="page"]::before {
    content: "";
    display: inline-block;
    width: 6px;
    height: 6px;
    margin-right: 10px;
    background: var(--yellow);
    vertical-align: middle;
  }
}

/* ---------- 8. 按钮与标签 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 12px 22px;
  border: 1px solid var(--gold);
  background: transparent;
  color: var(--chalk);
  font-size: var(--fs-small);
  font-weight: 600;
  letter-spacing: .08em;
  transition: background-color .24s var(--ease), color .24s var(--ease), border-color .24s var(--ease);
}

.btn:hover { background: var(--gold); color: var(--night); }

.btn--red {
  background: var(--red);
  border-color: var(--red);
  color: var(--chalk);
}

.btn--red:hover {
  background: transparent;
  color: var(--red);
}

.btn--ghost {
  border-color: var(--graphite);
  color: var(--mist);
}

.btn--ghost:hover {
  background: transparent;
  border-color: var(--chalk);
  color: var(--chalk);
}

.label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: var(--fs-label);
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--gold);
}

.label--red { color: var(--red); }
.label--yellow { color: var(--yellow); }
.label--mist { color: var(--mist); }

.tag {
  display: inline-block;
  padding: 4px 12px 4px 14px;
  background: var(--stripe);
  border: 1px solid var(--graphite);
  color: var(--mist);
  font-size: var(--fs-label);
  letter-spacing: .1em;
  clip-path: polygon(8px 0, 100% 0, 100% 100%, 0 100%);
}

.tag--red {
  background: rgba(226, 58, 46, .16);
  border-color: rgba(226, 58, 46, .5);
  color: #F5A79F;
}

.tag--yellow {
  background: rgba(245, 194, 49, .14);
  border-color: rgba(245, 194, 49, .48);
  color: var(--yellow);
}

/* ---------- 9. 记分牌纸卡片 ---------- */
.paper {
  position: relative;
  background: var(--paper);
  color: var(--night);
  padding: clamp(20px, 3vw, 34px);
  box-shadow:
    0 1px 0 rgba(251, 248, 240, .3),
    0 9px 0 -5px rgba(198, 161, 75, .22),
    0 20px 38px rgba(0, 0, 0, .44);
}

.paper::after {
  content: "";
  position: absolute;
  inset: 7px;
  border: 1px solid rgba(198, 161, 75, .4);
  pointer-events: none;
}

.paper h2, .paper h3, .paper h4 { color: var(--night); }
.paper a { border-bottom: 1px solid rgba(226, 58, 46, .5); }
.paper a:hover { color: var(--red); }

.paper--ink {
  background: var(--ink);
  color: var(--chalk);
  box-shadow: 0 20px 38px rgba(0, 0, 0, .44);
}

.paper--ink h2, .paper--ink h3, .paper--ink h4 { color: var(--chalk); }

/* ---------- 10. 编号章节头 ---------- */
.section-head {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: clamp(14px, 3vw, 36px);
  align-items: start;
}

.section-num {
  font-family: var(--font-index);
  font-weight: 200;
  font-size: var(--fs-index);
  line-height: .78;
  letter-spacing: -0.04em;
  color: rgba(251, 248, 240, .09);
  user-select: none;
}

.section-head__body { padding-top: clamp(6px, 1.4vw, 18px); }

.section-title {
  font-size: var(--fs-section);
  margin-bottom: 10px;
}

.section-lead {
  max-width: 62ch;
  color: var(--mist);
  font-size: 1rem;
}

@media (max-width: 640px) {
  .section-head { grid-template-columns: 1fr; gap: 4px; }
  .section-num { font-size: 96px; }
}

/* ---------- 11. 面包屑 ---------- */
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding: clamp(16px, 3vw, 30px) 0 0;
  font-size: var(--fs-label);
  letter-spacing: .1em;
  color: var(--mist);
}

.breadcrumb a { color: var(--mist); transition: color .2s var(--ease); }
.breadcrumb a:hover { color: var(--gold); }

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

.breadcrumb [aria-current="page"] { color: var(--chalk); }

/* ---------- 12. 图片容器基础规则 ---------- */
.media {
  position: relative;
  overflow: hidden;
  background: var(--stripe);
  border: 1px solid var(--graphite);
  isolation: isolate;
}

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

.media--16x9 { aspect-ratio: 16 / 9; }
.media--4x3 { aspect-ratio: 4 / 3; }
.media--3x2 { aspect-ratio: 3 / 2; }
.media--1x1 { aspect-ratio: 1 / 1; }
.media--tall { aspect-ratio: 3 / 4; }

.media--paper {
  background: var(--paper);
  border-color: rgba(36, 48, 61, .45);
}

.media--slant {
  clip-path: polygon(0 3%, 100% 0, 100% 97%, 0 100%);
}

.media__badge {
  position: absolute;
  top: 10px;
  left: 10px;
  z-index: 2;
  padding: 4px 10px;
  background: var(--red);
  color: var(--chalk);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .1em;
}

.media__badge--yellow { background: var(--yellow); color: var(--night); }

.media__caption {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  z-index: 2;
  padding: 26px 14px 10px;
  background: linear-gradient(180deg, rgba(10, 26, 42, 0), rgba(10, 26, 42, .9));
  color: var(--chalk);
  font-family: var(--font-mono);
  font-size: var(--fs-label);
  letter-spacing: .06em;
}

/* ---------- 13. 滚动显现协议 ---------- */
[data-reveal] {
  transition: opacity var(--dur) var(--ease), transform var(--dur) var(--ease);
}

[data-reveal].is-pending {
  opacity: 0;
  transform: translateX(-18px);
}

[data-reveal].is-visible {
  opacity: 1;
  transform: none;
}

/* ---------- 14. 页脚 ---------- */
.site-footer {
  position: relative;
  margin-top: clamp(48px, 8vw, 110px);
  background: var(--ink);
  color: var(--mist);
  border-top: 1px solid var(--graphite);
}

.footer-ridge {
  position: relative;
  height: 54px;
  overflow: hidden;
}

.footer-ridge::before {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--night);
  clip-path: polygon(
    0 100%, 0 66%, 5% 48%, 11% 62%, 18% 34%, 25% 56%, 32% 40%,
    40% 62%, 47% 30%, 54% 54%, 61% 42%, 69% 60%, 77% 34%,
    85% 58%, 92% 44%, 100% 62%, 100% 100%
  );
}

.footer-ridge::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: 0;
  height: 10px;
  background: repeating-linear-gradient(
    90deg,
    rgba(198, 161, 75, .3) 0 3px,
    transparent 3px 14px,
    rgba(36, 48, 61, .9) 14px 17px,
    transparent 17px 28px
  );
  opacity: .6;
}

.footer-inner {
  width: 100%;
  max-width: var(--wrap);
  margin-inline: auto;
  padding: clamp(30px, 5vw, 58px) var(--gutter) 0;
}

.footer-brand {
  padding-bottom: clamp(18px, 3vw, 28px);
  border-bottom: 1px solid var(--graphite);
}

.footer-brand__name {
  font-family: var(--font-display);
  font-weight: 900;
  font-stretch: condensed;
  font-size: clamp(1.6rem, 3.4vw, 2.4rem);
  letter-spacing: -0.03em;
  line-height: 1.05;
  color: var(--chalk);
}

.footer-brand__line {
  margin-top: 8px;
  font-size: var(--fs-label);
  letter-spacing: .18em;
  color: var(--gold);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 4vw, 44px);
  padding: clamp(26px, 4vw, 44px) 0 0;
}

@media (min-width: 700px) {
  .footer-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (min-width: 1080px) {
  .footer-grid { grid-template-columns: 1fr 1fr 1fr 1.35fr; }
}

.footer-col__title {
  position: relative;
  font-family: var(--font-body);
  font-size: var(--fs-label);
  font-weight: 600;
  letter-spacing: .18em;
  color: var(--chalk);
  padding-top: 12px;
  margin-bottom: 16px;
}

.footer-col__title::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 28px;
  height: 2px;
  background: var(--gold);
}

.footer-col__list { display: grid; gap: 9px; }

.footer-col__link {
  display: inline-block;
  font-size: .95rem;
  color: var(--mist);
  border-bottom: 1px solid transparent;
  transition: color .2s var(--ease), border-color .2s var(--ease);
}

.footer-col__link:hover {
  color: var(--chalk);
  border-bottom-color: rgba(198, 161, 75, .7);
}

.footer-contact { display: grid; gap: 10px; }

.footer-contact__item {
  display: grid;
  grid-template-columns: 5.6em 1fr;
  gap: 10px;
  align-items: baseline;
}

.footer-contact__key {
  font-size: var(--fs-label);
  letter-spacing: .12em;
  color: var(--graphite);
  color: #6B7C8A;
}

.footer-contact__val {
  font-family: var(--font-mono);
  font-size: .88rem;
  color: var(--chalk);
  word-break: break-all;
}

.footer-col__cta { margin-top: 18px; }

.footer-bottom {
  margin-top: clamp(28px, 4vw, 46px);
  padding: 18px 0 30px;
  border-top: 1px solid var(--graphite);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px 26px;
  font-size: var(--fs-label);
  letter-spacing: .09em;
}

.footer-record {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  color: var(--mist);
}

.footer-record::before {
  content: "";
  display: inline-block;
  width: 26px;
  height: 1px;
  background: var(--gold);
}

.footer-note { color: #6B7C8A; max-width: 46ch; }

.footer-year { color: var(--mist); font-family: var(--font-mono); }

/* ---------- 15. 动效降级 ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }

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

  [data-reveal],
  [data-reveal].is-pending {
    opacity: 1;
    transform: none;
  }

  .header-progress { transition: none; }
}