/* ==========================================================================
   多宝体育中心 — /assets/site.css
   共享外壳：reset、变量、中文排版、头部、页脚、通用组件
   ========================================================================== */

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 116px;
}

body, h1, h2, h3, h4, h5, h6, p, ul, ol, dl, dd, dt,
figure, blockquote, fieldset, legend, table, th, td { margin: 0; }

ul, ol { padding: 0; list-style: none; }
h1, h2, h3, h4, h5, h6 { font-size: inherit; font-weight: inherit; }
img, svg { max-width: 100%; display: block; }
button {
  font: inherit;
  color: inherit;
  background: none;
  border: 0;
  padding: 0;
  cursor: pointer;
}
a { color: inherit; text-decoration: none; }
table { border-collapse: collapse; width: 100%; }
hr { border: 0; border-top: 1px solid var(--hairline); margin: 0; }
summary { cursor: pointer; }

/* ---------- 2. 变量 ---------- */
:root {
  /* 色彩 */
  --ink-900: #061713;
  --ink-800: #0C2620;
  --ink-700: #123328;
  --moss: #1F4A3D;
  --cyan: #3BE8C4;
  --cyan-dim: #1B7F6C;
  --amber: #F0A03C;
  --warm: #B4AFA2;
  --cream: #F3EEE3;
  --rock: #6D7A73;
  --clay: #A2604B;

  /* 线与面 */
  --hairline: rgba(180, 175, 162, 0.24);
  --hairline-strong: rgba(180, 175, 162, 0.44);
  --hairline-cyan: rgba(59, 232, 196, 0.55);
  --hairline-amber: rgba(240, 160, 60, 0.55);
  --tint-cyan: rgba(59, 232, 196, 0.08);
  --tint-cyan-strong: rgba(59, 232, 196, 0.16);
  --tint-amber: rgba(240, 160, 60, 0.09);

  /* 字体 */
  --font-mono: "IBM Plex Mono", "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  --font-sans: "Noto Sans SC", "Source Han Sans SC", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-serif: "Noto Serif SC", "Songti SC", ui-serif, Georgia, serif;

  /* 尺度 */
  --shell: 1440px;
  --pad: clamp(16px, 4vw, 96px);
  --gap: 24px;
  --baseline: 24px;

  /* 动效 */
  --dur-fast: 120ms;
  --dur-mid: 180ms;
  --dur-slow: 240ms;
  --ease: cubic-bezier(0.2, 0.6, 0.2, 1);
}

/* ---------- 3. 基底与中文排版 ---------- */
body {
  background-color: var(--ink-900);
  color: var(--cream);
  font-family: var(--font-serif);
  font-size: 17px;
  line-height: 1.85;
  letter-spacing: 0.005em;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  min-height: 100vh;
}

h1, h2, h3, h4 {
  font-family: var(--font-sans);
  font-weight: 700;
  line-height: 1.28;
  letter-spacing: 0.01em;
}
h1 { font-size: clamp(28px, 3.6vw, 40px); }
h2 { font-size: clamp(22px, 2.6vw, 30px); }
h3 { font-size: clamp(18px, 2vw, 22px); }

p { text-wrap: pretty; }

strong, b { font-weight: 700; color: var(--cream); }
em { font-style: normal; color: var(--cyan); }

time, .num, code, kbd, samp {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.02em;
}

::selection { background: var(--cyan); color: #04140f; }

:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

/* ---------- 4. 布局容器 ---------- */
.shell {
  width: 100%;
  max-width: var(--shell);
  margin-inline: auto;
  padding-inline: var(--pad);
}

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

.grid {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: var(--gap);
}
.grid--tight { gap: 12px; }

/* ---------- 5. 头部 ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: var(--ink-900);
  border-bottom: 1px solid var(--hairline);
}

/* 5.1 跳过导航 */
.skip-link {
  position: absolute;
  left: 12px;
  top: -120px;
  z-index: 999;
  display: inline-block;
  padding: 10px 18px;
  background-color: var(--cyan);
  color: #04140f;
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 700;
  line-height: 1.5;
  transition: top var(--dur-mid) var(--ease);
}
.skip-link:focus { top: 12px; }

/* 5.2 滚动进度 */
.scroll-meter {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  z-index: 120;
  background-color: transparent;
  pointer-events: none;
}
.scroll-meter__fill {
  display: block;
  width: 100%;
  height: 100%;
  background-color: var(--cyan);
  transform: scaleX(0);
  transform-origin: 0 50%;
  will-change: transform;
}

/* 5.3 命令栏 */
.cmdbar {
  border-bottom: 1px solid var(--hairline);
  background-color: var(--ink-900);
}

.cmdbar__inner {
  display: flex;
  align-items: center;
  gap: clamp(12px, 2vw, 28px);
  min-height: 56px;
  padding-block: 9px;
}

.brand {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-sans);
  font-size: 17px;
  font-weight: 700;
  letter-spacing: 0.01em;
  color: var(--cream);
}
.brand__mark {
  display: inline-grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border: 1px solid var(--cyan);
  background-color: var(--tint-cyan);
  color: var(--cyan);
  font-family: var(--font-sans);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.04em;
  line-height: 1;
}
.brand__text { white-space: nowrap; }
.brand__badge {
  padding: 2px 7px;
  border: 1px solid var(--hairline-strong);
  color: var(--warm);
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.16em;
  line-height: 1.6;
  white-space: nowrap;
}

/* 5.4 主导航 */
.primary-nav {
  flex: 1 1 auto;
  display: flex;
  justify-content: center;
  min-width: 0;
}
.primary-nav__list {
  display: flex;
  align-items: center;
  gap: 2px;
  flex-wrap: nowrap;
}
.primary-nav__item { flex: 0 0 auto; }

.primary-nav__link {
  position: relative;
  display: inline-block;
  padding: 9px 11px;
  color: var(--warm);
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.02em;
  line-height: 1.6;
  white-space: nowrap;
  transition: color var(--dur-mid) var(--ease);
}
.primary-nav__link::after {
  content: "";
  position: absolute;
  left: 11px;
  right: 11px;
  bottom: 5px;
  height: 1px;
  background-color: var(--cyan);
  transform: scaleX(0);
  transform-origin: 0 50%;
  transition: transform var(--dur-mid) var(--ease);
}
.primary-nav__link:hover { color: var(--cream); }
.primary-nav__link:hover::after { transform: scaleX(1); }
.primary-nav__link[aria-current="page"] { color: var(--cyan); }
.primary-nav__link[aria-current="page"]::after { transform: scaleX(1); }

/* 5.5 状态区 */
.cmdbar__status {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  gap: 14px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  line-height: 1.5;
}
.clock {
  display: inline-flex;
  align-items: baseline;
  gap: 6px;
}
.clock__label { color: var(--rock); }
.clock__value {
  color: var(--warm);
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.06em;
}
.status-light {
  display: inline-flex;
  align-items: center;
  gap: 7px;
}
.status-light__dot {
  width: 7px;
  height: 7px;
  background-color: var(--cyan);
  box-shadow: 0 0 0 3px rgba(59, 232, 196, 0.15);
}
.status-light__text {
  color: var(--warm);
  letter-spacing: 0.08em;
  white-space: nowrap;
}

/* 5.6 移动索引按钮 */
.nav-toggle {
  display: none;
  align-items: center;
  gap: 9px;
  padding: 8px 11px;
  border: 1px solid var(--hairline-strong);
  color: var(--cream);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  line-height: 1.4;
  transition: border-color var(--dur-fast) var(--ease), color var(--dur-fast) var(--ease);
}
.nav-toggle:hover { border-color: var(--cyan); color: var(--cyan); }
.nav-toggle__bars {
  position: relative;
  display: block;
  width: 16px;
  height: 1px;
  background-color: currentColor;
  transition: background-color var(--dur-mid) var(--ease);
}
.nav-toggle__bars::before,
.nav-toggle__bars::after {
  content: "";
  position: absolute;
  left: 0;
  width: 16px;
  height: 1px;
  background-color: currentColor;
  transition: transform var(--dur-mid) var(--ease), top var(--dur-mid) var(--ease);
}
.nav-toggle__bars::before { top: -5px; }
.nav-toggle__bars::after { top: 5px; }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars { background-color: transparent; }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::before { top: 0; transform: rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::after { top: 0; transform: rotate(-45deg); }
.nav-toggle__label { white-space: nowrap; }

/* 5.7 常驻第二栏 */
.anchorbar {
  background-color: var(--ink-800);
  border-bottom: 1px solid var(--hairline);
}
.anchorbar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  padding-block: 8px;
  min-height: 46px;
}
.anchor-cell {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 6px 14px;
  border: 1px solid var(--hairline-cyan);
  background-color: transparent;
  color: var(--cream);
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 500;
  line-height: 1.6;
  transition: background-color var(--dur-fast) var(--ease),
              border-color var(--dur-fast) var(--ease),
              color var(--dur-fast) var(--ease);
}
.anchor-cell:hover {
  background-color: var(--tint-cyan-strong);
  border-color: var(--cyan);
  color: #ffffff;
}
.anchor-cell--column { background-color: var(--tint-cyan); }
.anchor-cell--sub { background-color: transparent; }
.anchor-cell__label {
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.18em;
  color: var(--cyan);
  white-space: nowrap;
}
.anchor-cell__text { white-space: nowrap; }

/* ---------- 6. 页脚 ---------- */
.site-footer {
  background-color: var(--ink-800);
  border-top: 1px solid var(--hairline);
  color: var(--warm);
  font-family: var(--font-sans);
  font-size: 13px;
  line-height: 1.75;
}
.site-footer__inner {
  padding-block: clamp(32px, 5vw, 56px);
}

.foot-grid {
  display: grid;
  grid-template-columns: 1.15fr 1fr 1.35fr 1fr;
  gap: 1px;
  background-color: var(--hairline);
  border: 1px solid var(--hairline);
}
.foot-cell {
  background-color: var(--ink-800);
  padding: 20px 20px 24px;
  min-width: 0;
}

.foot-kicker {
  margin-bottom: 12px;
  color: var(--rock);
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.2em;
  line-height: 1.6;
}

.foot-brand__name {
  color: var(--cream);
  font-family: var(--font-sans);
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 0.01em;
}
.foot-brand__tagline {
  margin-top: 8px;
  color: var(--warm);
  font-family: var(--font-serif);
  font-size: 14px;
  line-height: 1.8;
}

.foot-index {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 2px 16px;
}
.foot-index--legal {
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px dashed var(--hairline);
}
.foot-link {
  display: inline-block;
  padding: 2px 0;
  color: var(--warm);
  font-size: 13px;
  border-bottom: 1px solid transparent;
  transition: color var(--dur-fast) var(--ease), border-color var(--dur-fast) var(--ease);
}
.foot-link:hover {
  color: var(--cyan);
  border-bottom-color: var(--cyan-dim);
}

.foot-contact { display: grid; gap: 8px; }
.foot-contact__row {
  display: grid;
  grid-template-columns: 52px minmax(0, 1fr);
  gap: 10px;
  align-items: baseline;
}
.foot-contact__label {
  color: var(--rock);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.14em;
}
.foot-contact__value {
  color: var(--cream);
  font-size: 13px;
  word-break: break-word;
}

.foot-note {
  margin-top: 12px;
  color: var(--rock);
  font-size: 12px;
  line-height: 1.75;
}

.foot-meta__line {
  padding: 3px 0;
  color: var(--warm);
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.06em;
  line-height: 1.7;
}
.foot-meta__line strong {
  color: var(--cream);
  font-weight: 500;
}

/* ---------- 7. 通用组件 ---------- */
/* 7.1 按钮 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 20px;
  border: 1px solid transparent;
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.02em;
  line-height: 1.5;
  text-align: center;
  cursor: pointer;
  transition: background-color var(--dur-fast) var(--ease),
              color var(--dur-fast) var(--ease),
              border-color var(--dur-fast) var(--ease);
}
.btn--primary {
  background-color: var(--cyan);
  border-color: var(--cyan);
  color: #04140f;
}
.btn--primary:hover { background-color: #5FF2D6; border-color: #5FF2D6; }

.btn--ghost {
  background-color: transparent;
  border-color: var(--hairline-strong);
  color: var(--cream);
}
.btn--ghost:hover { border-color: var(--cyan); color: var(--cyan); }

.btn--amber {
  background-color: transparent;
  border-color: var(--hairline-amber);
  color: var(--amber);
}
.btn--amber:hover { background-color: var(--tint-amber); border-color: var(--amber); }

/* 7.2 面包屑 */
.crumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding-block: 14px;
  color: var(--rock);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  line-height: 1.6;
}
.crumbs a {
  color: var(--warm);
  border-bottom: 1px solid transparent;
  transition: color var(--dur-fast) var(--ease), border-color var(--dur-fast) var(--ease);
}
.crumbs a:hover { color: var(--cyan); border-bottom-color: var(--cyan-dim); }
.crumbs__sep { color: var(--moss); }
.crumbs [aria-current="page"] { color: var(--cream); }

/* 7.3 正文容器 */
.prose {
  max-width: 72ch;
  color: var(--cream);
  font-family: var(--font-serif);
  font-size: 17px;
  line-height: 1.85;
}
.prose p + p { margin-top: 1.05em; }
.prose h2 {
  margin: 1.9em 0 0.65em;
  font-family: var(--font-sans);
  font-size: clamp(20px, 2.4vw, 26px);
  font-weight: 700;
  line-height: 1.34;
  letter-spacing: 0.01em;
}
.prose h3 {
  margin: 1.6em 0 0.55em;
  font-family: var(--font-sans);
  font-size: clamp(17px, 1.9vw, 20px);
  font-weight: 700;
  line-height: 1.4;
}
.prose a {
  color: var(--cyan);
  border-bottom: 1px solid var(--cyan-dim);
  transition: border-color var(--dur-fast) var(--ease);
}
.prose a:hover { border-bottom-color: var(--cyan); }
.prose ul, .prose ol { margin-top: 0.8em; }
.prose li {
  position: relative;
  padding-left: 18px;
  margin-top: 0.4em;
}
.prose li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.78em;
  width: 7px;
  height: 1px;
  background-color: var(--cyan-dim);
}

/* 7.4 章节抬头 */
.section-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 6px 16px;
  padding-bottom: 12px;
  margin-bottom: 24px;
  border-bottom: 1px solid var(--hairline);
}
.section-head__index {
  color: var(--cyan);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.2em;
  line-height: 1.6;
}
.section-head__title {
  color: var(--cream);
  font-family: var(--font-sans);
  font-size: clamp(20px, 2.6vw, 28px);
  font-weight: 700;
  line-height: 1.32;
}
.section-head__note {
  margin-left: auto;
  color: var(--rock);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  line-height: 1.6;
}

/* 7.5 展签卡片 */
.plate {
  display: block;
  padding: 20px;
  border: 1px solid var(--hairline);
  background-color: var(--ink-800);
  transition: border-color var(--dur-fast) var(--ease), background-color var(--dur-fast) var(--ease);
}
.plate:hover {
  border-color: var(--hairline-cyan);
  background-color: #0E2C25;
}
.plate__label {
  display: block;
  margin-bottom: 10px;
  color: var(--cyan);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.16em;
  line-height: 1.6;
}
.plate__title {
  color: var(--cream);
  font-family: var(--font-sans);
  font-size: 18px;
  font-weight: 700;
  line-height: 1.4;
}
.plate__meta {
  margin-top: 8px;
  color: var(--rock);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  line-height: 1.6;
}

/* 7.6 标签 */
.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 8px;
  border: 1px solid var(--hairline-strong);
  color: var(--warm);
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.16em;
  line-height: 1.6;
  white-space: nowrap;
}
.tag--live {
  border-color: var(--hairline-cyan);
  background-color: var(--tint-cyan);
  color: var(--cyan);
}
.tag--warn {
  border-color: var(--hairline-amber);
  background-color: var(--tint-amber);
  color: var(--amber);
}
.tag--clay {
  border-color: rgba(162, 96, 75, 0.55);
  background-color: rgba(162, 96, 75, 0.12);
  color: #C98066;
}

/* 7.7 响应式图片容器（页面阶段放置 <img>） */
.media {
  position: relative;
  display: block;
  overflow: hidden;
  border: 1px solid var(--hairline);
  background-color: var(--ink-800);
  background-image:
    repeating-linear-gradient(90deg, rgba(180, 175, 162, 0.09) 0 1px, transparent 1px 32px),
    repeating-linear-gradient(0deg, rgba(180, 175, 162, 0.07) 0 1px, transparent 1px 32px);
}
.media--16x9 { aspect-ratio: 16 / 9; }
.media--4x3 { aspect-ratio: 4 / 3; }
.media--1x1 { aspect-ratio: 1 / 1; }
.media--tall { aspect-ratio: 3 / 4; }
.media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.82) contrast(1.06) brightness(0.94);
}
.media__stamp {
  position: absolute;
  left: 0;
  bottom: 0;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 5px 10px;
  border-top: 1px solid var(--hairline-strong);
  border-right: 1px solid var(--hairline-strong);
  background-color: rgba(6, 23, 19, 0.86);
  color: var(--warm);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  line-height: 1.6;
}

/* ---------- 8. 响应式 ---------- */
@media (max-width: 1180px) {
  .primary-nav__link { padding: 9px 8px; font-size: 13.5px; }
  .primary-nav__link::after { left: 8px; right: 8px; }
  .cmdbar__status { gap: 10px; }
  .status-light__text { letter-spacing: 0.04em; }
}

@media (max-width: 1024px) {
  .foot-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 900px) {
  html { scroll-padding-top: 128px; }

  .cmdbar__inner {
    flex-wrap: wrap;
    gap: 10px;
    padding-block: 10px;
  }
  .brand { order: 1; margin-right: auto; }
  .cmdbar__status { order: 2; }
  .nav-toggle { order: 3; display: inline-flex; }

  .primary-nav {
    order: 4;
    flex: 1 0 100%;
    display: none;
    justify-content: flex-start;
    margin-top: 2px;
    border-top: 1px solid var(--hairline);
    max-height: min(70vh, 480px);
    overflow-y: auto;
  }
  .primary-nav[data-open] { display: block; }

  .primary-nav__list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding-block: 4px;
  }
  .primary-nav__item { width: 100%; }
  .primary-nav__link {
    display: block;
    padding: 13px 2px;
    border-bottom: 1px solid var(--hairline);
    font-size: 15px;
  }
  .primary-nav__link::after {
    left: 2px;
    right: auto;
    bottom: 10px;
    width: 22px;
  }

  .anchorbar__inner { gap: 8px; }
  .anchor-cell {
    flex: 1 1 0;
    justify-content: center;
    padding: 7px 8px;
    font-size: 12.5px;
    gap: 7px;
  }
  .anchor-cell__label { display: none; }
  .anchor-cell__text { white-space: normal; text-align: center; }

  .grid { grid-template-columns: repeat(6, minmax(0, 1fr)); }
  .section-head__note { margin-left: 0; }
}

@media (max-width: 620px) {
  body { font-size: 16px; }

  .brand__badge { display: none; }
  .clock { display: none; }
  .cmdbar__status { gap: 8px; }
  .status-light__text { font-size: 10px; letter-spacing: 0.06em; }

  .foot-grid { grid-template-columns: minmax(0, 1fr); }
  .foot-cell { padding: 18px 16px 20px; }
  .foot-index { grid-template-columns: repeat(2, minmax(0, 1fr)); }

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

  .prose { font-size: 16px; }
}

@media (max-width: 380px) {
  .brand__text { font-size: 15px; }
  .nav-toggle__label { display: none; }
}

/* ---------- 9. 减少动效 ---------- */
@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;
  }
  .primary-nav__link::after { transition: none; }
  .scroll-meter__fill { transition: none; }
}