/* =========================================================
   开云体育主站 · 共享样式表 /assets/site.css
   深夜球场数据室：球场深绿底 + 开云深蓝 + 荧光青
   ========================================================= */

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 96px;
}

body {
  margin: 0;
  min-height: 100vh;
  background-color: var(--c-green);
  background-image:
    linear-gradient(rgba(53, 224, 196, .05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(53, 224, 196, .05) 1px, transparent 1px);
  background-size: 72px 72px;
  background-attachment: fixed;
  color: var(--c-white);
  font-family: var(--font-display);
  font-size: 15px;
  line-height: 1.85;
  letter-spacing: .01em;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

img, svg, video { max-width: 100%; }
button, input, select, textarea { font: inherit; color: inherit; }
ul, ol { margin: 0; padding: 0; }

/* ---------- 2. 变量 ---------- */
:root {
  --c-green: #0A2A22;
  --c-ink: #051713;
  --c-blue: #12365C;
  --c-cyan: #35E0C4;
  --c-amber: #F2B23C;
  --c-red: #E1543C;
  --c-emerald: #43C07C;
  --c-white: #EAF3F0;
  --c-mist: #93A8A2;
  --c-indigo: #3E3A78;
  --c-wine: #6B2137;

  --line: rgba(147, 168, 162, .20);
  --line-strong: rgba(147, 168, 162, .42);
  --panel: rgba(18, 54, 92, .26);
  --panel-2: rgba(5, 23, 19, .62);

  --font-display: "Source Han Sans Narrow", "Alibaba PuHuiTi", "HarmonyOS Sans SC",
    "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
  --font-serif: "Source Han Serif SC", "Noto Serif SC", "Songti SC", Georgia, "SimSun", serif;
  --font-mono: "JetBrains Mono", "SF Mono", SFMono-Regular, Menlo, Consolas,
    "Liberation Mono", "Courier New", monospace;

  --header-h: 64px;
  --rail-h: 22px;
  --shell-max: 1280px;
  --gutter: clamp(16px, 4vw, 48px);
  --radius: 14px;
  --radius-sm: 8px;

  --dur: .32s;
  --ease: cubic-bezier(.22, .61, .36, 1);
}

/* ---------- 3. 中文排版基础 ---------- */
h1, h2, h3, h4, h5 {
  margin: 0;
  font-weight: 700;
  line-height: 1.24;
  letter-spacing: -.005em;
  text-wrap: balance;
}

h1 { font-size: clamp(30px, 5vw, 56px); font-family: var(--font-serif); font-weight: 600; }
h2 { font-size: clamp(24px, 3.2vw, 34px); }
h3 { font-size: clamp(18px, 2.2vw, 22px); }
h4 { font-size: 16px; }

p { margin: 0 0 .9em; }
p:last-child { margin-bottom: 0; }

a { color: var(--c-cyan); text-decoration: none; transition: color var(--dur) var(--ease); }
a:hover { color: var(--c-white); }

strong, b { font-weight: 700; }
small { font-size: 12px; }

:focus-visible {
  outline: 2px solid var(--c-cyan);
  outline-offset: 3px;
  border-radius: 4px;
}

::selection { background: var(--c-cyan); color: var(--c-ink); }

/* ---------- 4. 布局工具 ---------- */
.container {
  width: 100%;
  max-width: var(--shell-max);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

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

.section--ink {
  background: var(--c-ink);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.section--blue {
  background: linear-gradient(180deg, rgba(18, 54, 92, .50) 0%, rgba(18, 54, 92, .08) 100%);
}

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

.grid { display: grid; gap: clamp(16px, 2vw, 28px); }
.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)); }

.visually-hidden {
  position: absolute !important;
  width: 1px; height: 1px;
  margin: -1px; padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

/* ---------- 5. 通用按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 18px;
  border: 1px solid transparent;
  border-radius: 999px;
  font-family: var(--font-display);
  font-size: 13.5px;
  font-weight: 700;
  letter-spacing: .05em;
  line-height: 1.2;
  text-decoration: none;
  cursor: pointer;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease),
    border-color var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.btn--primary { background: var(--c-cyan); color: var(--c-ink); }
.btn--primary:hover { background: var(--c-white); color: var(--c-ink); transform: translateY(-1px); }

.btn--ghost {
  background: transparent;
  color: var(--c-white);
  border-color: rgba(53, 224, 196, .42);
}
.btn--ghost:hover {
  background: rgba(53, 224, 196, .10);
  border-color: var(--c-cyan);
  color: var(--c-cyan);
}

.btn--amber { background: var(--c-amber); color: var(--c-ink); }
.btn--amber:hover { background: var(--c-white); color: var(--c-ink); transform: translateY(-1px); }

/* ---------- 6. 标签 / 状态 / 数字 ---------- */
.tag {
  display: inline-flex;
  align-items: center;
  padding: 3px 9px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--c-mist);
  white-space: nowrap;
}
.tag--cyan { border-color: rgba(53, 224, 196, .5); color: var(--c-cyan); }
.tag--indigo { background: var(--c-indigo); border-color: transparent; color: var(--c-white); }
.tag--wine { background: var(--c-wine); border-color: transparent; color: var(--c-white); }

.dot {
  display: inline-block;
  width: 8px; height: 8px;
  margin-right: 6px;
  border-radius: 50%;
  vertical-align: middle;
}
.dot--up { background: var(--c-emerald); box-shadow: 0 0 0 3px rgba(67, 192, 124, .16); }
.dot--down { background: var(--c-red); box-shadow: 0 0 0 3px rgba(225, 84, 60, .16); }

.num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-feature-settings: "tnum" 1;
  letter-spacing: .01em;
}
.num--amber { color: var(--c-amber); }
.num--cyan { color: var(--c-cyan); }

/* ---------- 7. 页头 ---------- */
.skip-link {
  position: fixed;
  top: 10px;
  left: 10px;
  z-index: 200;
  padding: 10px 18px;
  background: var(--c-cyan);
  color: var(--c-ink);
  font-size: 13px;
  font-weight: 700;
  border-radius: 8px;
  transform: translateY(-220%);
  transition: transform .2s var(--ease);
}
.skip-link:focus { transform: translateY(0); color: var(--c-ink); }

.site-header {
  position: sticky;
  top: 0;
  z-index: 90;
  background: rgba(5, 23, 19, .86);
  -webkit-backdrop-filter: saturate(150%) blur(12px);
  backdrop-filter: saturate(150%) blur(12px);
  border-bottom: 1px solid var(--line);
  transition: background var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.site-header[data-compact] {
  background: rgba(5, 23, 19, .97);
  box-shadow: 0 1px 0 var(--line), 0 22px 46px -34px rgba(0, 0, 0, .95);
}

.site-header__bar {
  display: flex;
  align-items: center;
  gap: clamp(10px, 2vw, 26px);
  width: 100%;
  max-width: var(--shell-max);
  margin-inline: auto;
  padding-inline: var(--gutter);
  height: var(--header-h);
}

/* 品牌 */
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex: 0 0 auto;
  color: var(--c-white);
}
.brand:hover { color: var(--c-white); }

.brand__mark {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  background: var(--c-blue);
  color: var(--c-cyan);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .08em;
  clip-path: polygon(0 0, 100% 0, 100% 68%, 68% 100%, 0 100%);
}

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

.brand__name {
  font-size: 15px;
  font-weight: 700;
  letter-spacing: .02em;
  white-space: nowrap;
}

.brand__sub {
  font-family: var(--font-mono);
  font-size: 9.5px;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--c-cyan);
  opacity: .78;
  transition: opacity var(--dur) var(--ease), transform var(--dur) var(--ease);
}
.site-header[data-compact] .brand__sub { opacity: 0; transform: translateY(-4px); }

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

.pill-nav__list {
  display: flex;
  align-items: center;
  gap: 2px;
  margin: 0;
  padding: 4px;
  list-style: none;
  background: rgba(18, 54, 92, .60);
  border: 1px solid rgba(53, 224, 196, .16);
  border-radius: 999px;
}

.pill-nav__item { display: block; }

.pill-nav__link {
  display: block;
  padding: 7px 13px;
  border-radius: 999px;
  font-size: 13.5px;
  font-weight: 500;
  letter-spacing: .04em;
  color: var(--c-white);
  white-space: nowrap;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease);
}
.pill-nav__link:hover { background: rgba(53, 224, 196, .14); color: var(--c-white); }

.pill-nav__link[aria-current="page"] {
  background: var(--c-cyan);
  color: var(--c-ink);
  font-weight: 700;
}
.pill-nav__link[aria-current="page"]:hover { background: var(--c-cyan); color: var(--c-ink); }

/* 页头操作区 */
.site-header__actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex: 0 0 auto;
  margin-left: auto;
}

.header-cta { font-size: 13px; padding: 9px 16px; }

.nav-toggle {
  display: none;
  align-items: center;
  gap: 8px;
  padding: 9px 14px;
  background: rgba(18, 54, 92, .70);
  color: var(--c-white);
  border: 1px solid rgba(53, 224, 196, .24);
  border-radius: 999px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .06em;
  cursor: pointer;
  transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}
.nav-toggle:hover { border-color: var(--c-cyan); }

.nav-toggle__icon { display: grid; gap: 3px; width: 16px; }
.nav-toggle__icon span {
  display: block;
  height: 1.5px;
  width: 100%;
  background: currentColor;
  transition: transform var(--dur) var(--ease), opacity var(--dur) var(--ease);
}
.nav-toggle[aria-expanded="true"] .nav-toggle__icon span:nth-child(1) {
  transform: translateY(4.5px) rotate(45deg);
}
.nav-toggle[aria-expanded="true"] .nav-toggle__icon span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] .nav-toggle__icon span:nth-child(3) {
  transform: translateY(-4.5px) rotate(-45deg);
}

/* 轮次轴进度条 */
.round-rail {
  display: flex;
  align-items: center;
  gap: 12px;
  width: 100%;
  max-width: var(--shell-max);
  margin-inline: auto;
  padding-inline: var(--gutter);
  height: var(--rail-h);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--c-mist);
  --rail-progress: 0;
}

.round-rail__label { white-space: nowrap; }

.round-rail__track {
  position: relative;
  flex: 1 1 auto;
  height: 2px;
  background: rgba(147, 168, 162, .20);
  border-radius: 999px;
  min-width: 60px;
}

.round-rail__fill {
  position: absolute;
  inset: 0;
  transform-origin: left center;
  transform: scaleX(var(--rail-progress));
  background: linear-gradient(90deg, var(--c-blue) 0%, var(--c-cyan) 100%);
  border-radius: inherit;
}

.round-rail__marker {
  position: absolute;
  top: 50%;
  left: calc(var(--rail-progress) * 100%);
  width: 9px;
  height: 9px;
  background: var(--c-cyan);
  transform: translate(-50%, -50%) rotate(45deg);
  box-shadow: 0 0 12px rgba(53, 224, 196, .7);
}

.round-rail__value {
  min-width: 2.4em;
  text-align: right;
  font-size: 11px;
  font-weight: 700;
  color: var(--c-amber);
  letter-spacing: .14em;
}

/* ---------- 8. 首屏 / 正文容器 / 面包屑 ---------- */
.breadcrumbs {
  padding-top: 18px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--c-mist);
}
.breadcrumbs__list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
  margin: 0;
  padding: 0;
}
.breadcrumbs__list li { display: flex; align-items: center; gap: 8px; }
.breadcrumbs__list li + li::before {
  content: "/";
  color: rgba(147, 168, 162, .5);
}
.breadcrumbs a { color: var(--c-mist); }
.breadcrumbs a:hover { color: var(--c-cyan); }
.breadcrumbs [aria-current="page"] { color: var(--c-white); font-weight: 700; }

.prose { max-width: 68ch; }
.prose p { margin: 0 0 1.1em; }
.prose p:last-child { margin-bottom: 0; }
.prose a { border-bottom: 1px solid rgba(53, 224, 196, .42); }

/* ---------- 9. 章节标题组 ---------- */
.section-head {
  position: relative;
  margin-bottom: clamp(24px, 3.4vw, 44px);
}

.section-head__num {
  position: absolute;
  top: -.30em;
  left: -.04em;
  z-index: 0;
  font-family: var(--font-mono);
  font-size: clamp(84px, 13vw, 172px);
  font-weight: 700;
  line-height: .9;
  letter-spacing: -.05em;
  color: rgba(53, 224, 196, .09);
  pointer-events: none;
  user-select: none;
}

.section-head__kicker,
.section-head__title,
.section-head__lead { position: relative; z-index: 1; }

.section-head__kicker {
  display: block;
  margin-bottom: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .28em;
  text-transform: uppercase;
  color: var(--c-cyan);
}

.section-head__title {
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: clamp(24px, 3.2vw, 34px);
  letter-spacing: .01em;
}

.section-head__lead {
  margin-top: 14px;
  max-width: 62ch;
  color: var(--c-mist);
  font-size: 14.5px;
}

/* ---------- 10. 切角面板 ---------- */
.panel {
  position: relative;
  padding: clamp(18px, 2.4vw, 28px);
  background: var(--panel);
  border: 1px solid var(--line);
  clip-path: polygon(0 0, calc(100% - 20px) 0, 100% 20px, 100% 100%, 20px 100%, 0 calc(100% - 20px));
}

.panel--flat {
  clip-path: none;
  border-radius: var(--radius);
}

.panel--ink { background: var(--panel-2); }

/* ---------- 11. 图片容器基础规则 ---------- */
.media {
  position: relative;
  display: block;
  overflow: hidden;
  aspect-ratio: 3 / 2;
  background: linear-gradient(140deg, #0d2b26 0%, #051713 100%);
  border: 1px solid var(--line);
  border-radius: 2px;
}

.media > img,
.media > svg,
.media > video {
  position: absolute;
  inset: 0;
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.media img {
  filter: saturate(.70) contrast(1.06) brightness(.90);
}

.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--21x9 { aspect-ratio: 21 / 9; }

@supports not (aspect-ratio: 1 / 1) {
  .media { height: 0; padding-top: 66.667%; }
  .media--16x9 { padding-top: 56.25%; }
  .media--4x3 { padding-top: 75%; }
  .media--3x2 { padding-top: 66.667%; }
  .media--1x1 { padding-top: 100%; }
  .media--21x9 { padding-top: 42.857%; }
}

.media__scrim {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(180deg, rgba(5, 23, 19, 0) 38%, rgba(5, 23, 19, .88) 100%);
}

.media__caption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 14px 16px;
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--c-white);
}

/* ---------- 12. 页脚 ---------- */
.site-footer {
  position: relative;
  margin-top: clamp(48px, 8vw, 110px);
  background: var(--c-ink);
  border-top: 1px solid var(--line);
}

.site-footer::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--c-blue) 0%, var(--c-cyan) 38%, rgba(53, 224, 196, 0) 92%);
}

.site-footer__inner {
  width: 100%;
  max-width: var(--shell-max);
  margin-inline: auto;
  padding: clamp(36px, 6vw, 68px) var(--gutter) 26px;
}

.footer-index {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: clamp(20px, 3vw, 44px);
  padding-bottom: 34px;
  border-bottom: 1px solid var(--line);
}

.footer-index__title {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .24em;
  text-transform: uppercase;
  color: var(--c-cyan);
}

.footer-index__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 9px;
}

.footer-index__list a {
  display: inline-block;
  color: var(--c-white);
  font-size: 14px;
  font-weight: 500;
  transition: color var(--dur) var(--ease), transform var(--dur) var(--ease);
}
.footer-index__list a:hover { color: var(--c-cyan); transform: translateX(3px); }

.footer-meta {
  display: grid;
  grid-template-columns: 1.35fr 1fr;
  gap: clamp(24px, 4vw, 60px);
  padding: 34px 0;
  border-bottom: 1px solid var(--line);
}

.footer-meta__name {
  margin: 0 0 10px;
  font-family: var(--font-serif);
  font-size: 22px;
  font-weight: 600;
  letter-spacing: .02em;
  color: var(--c-white);
}

.footer-meta__text {
  margin: 0;
  max-width: 52ch;
  font-size: 13.5px;
  line-height: 1.9;
  color: var(--c-mist);
}

.footer-meta__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 11px;
  align-content: start;
}

.footer-meta__list li {
  display: flex;
  align-items: baseline;
  gap: 12px;
}

.footer-meta__key {
  flex: 0 0 70px;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--c-mist);
}

.footer-meta__val {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--c-white);
  word-break: break-word;
}

.footer-meta__val--text {
  font-family: var(--font-display);
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--c-white);
}

.footer-legal {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 26px;
  padding-top: 22px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--c-mist);
}

.footer-legal p { margin: 0; }

.footer-legal__note {
  flex: 1 1 100%;
  max-width: 74ch;
  font-family: var(--font-display);
  font-size: 12.5px;
  letter-spacing: 0;
  line-height: 1.8;
  color: var(--c-mist);
}

/* ---------- 13. 滚动显现 ---------- */
[data-reveal] {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity .5s var(--ease), transform .5s var(--ease);
  transition-delay: var(--reveal-delay, 0ms);
  will-change: opacity, transform;
}

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

/* ---------- 14. 响应式 ---------- */
@media (max-width: 1080px) {
  .pill-nav__link { padding: 7px 10px; font-size: 13px; }
  .brand__sub { display: none; }
}

@media (max-width: 960px) {
  :root { --header-h: 58px; --rail-h: 20px; }

  .site-header__actions { margin-left: auto; }
  .header-cta { display: none; }
  .nav-toggle { display: inline-flex; }

  .pill-nav {
    position: fixed;
    top: calc(var(--header-h) + var(--rail-h) + 10px);
    left: var(--gutter);
    right: var(--gutter);
    display: block;
    flex: none;
    padding: 10px;
    background: rgba(5, 23, 19, .97);
    border: 1px solid var(--line-strong);
    border-radius: var(--radius);
    box-shadow: 0 34px 64px -34px rgba(0, 0, 0, .95);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: opacity .22s var(--ease), transform .22s var(--ease), visibility .22s linear;
  }

  .pill-nav[data-open] {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
  }

  .pill-nav__list {
    flex-direction: column;
    align-items: stretch;
    gap: 2px;
    padding: 0;
    background: none;
    border: 0;
    border-radius: 0;
  }

  .pill-nav__link {
    padding: 12px 14px;
    border-radius: 10px;
    font-size: 15px;
    font-weight: 500;
  }

  .footer-meta { grid-template-columns: 1fr; }
  .grid--4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .grid--3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 680px) {
  .footer-index { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 26px 20px; }
  .footer-meta__list li { flex-direction: column; gap: 2px; }
  .footer-meta__key { flex: none; }
  .round-rail__label { display: none; }
  .grid--2,
  .grid--3,
  .grid--4 { grid-template-columns: 1fr; }
  .section-head__num { font-size: clamp(72px, 22vw, 120px); }
}

@media (max-width: 420px) {
  .footer-index { grid-template-columns: 1fr; }
  .brand__name { font-size: 14px; }
}

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

  [data-reveal] {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .round-rail__marker,
  .round-rail__fill,
  .pill-nav,
  .nav-toggle__icon span,
  .btn,
  .brand__sub,
  .site-header,
  .footer-index__list a {
    transition: none;
  }

  .btn:hover,
  .footer-index__list a:hover { transform: none; }
}