/* =========================================================
   米兰体育看台 · 共享样式表 /assets/site.css
   夜场记分牌 × 战术板：斜切 / 编号 / 等宽数字 / 双色分区
   ========================================================= */

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

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

body,
h1, h2, h3, h4, h5, h6,
p, figure, blockquote, dl, dd, ul, ol {
  margin: 0;
}

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

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

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

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

/* ---------- tokens ---------- */
:root {
  --red: #C8102E;
  --red-deep: #9C0C23;
  --night: #0E1113;
  --tactic: #1E252B;
  --mist: #A7C4D4;
  --mist-bg: #EAF1F5;
  --green-deep: #0B7A3B;
  --green-light: #34D399;
  --chalk: #F7F9F6;
  --fence: #59636E;
  --alert: #F97316;

  --font-display: "Barlow Condensed", "Noto Sans SC", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-body: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
  --font-data: "JetBrains Mono", "Roboto Mono", ui-monospace, SFMono-Regular, Menlo, monospace;

  --shell-max: 1280px;
  --gutter: clamp(16px, 4.5vw, 40px);

  --t: 0.2s ease;
  --t-slow: 0.55s cubic-bezier(0.22, 0.61, 0.36, 1);
}

/* ---------- 中文排版基底 ---------- */
body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.75;
  color: var(--night);
  background-color: var(--chalk);
  overflow-wrap: break-word;
  word-break: normal;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: 0.012em;
  color: inherit;
}

h1 {
  font-size: clamp(2.2rem, 5.4vw, 4.25rem);
  line-height: 1.04;
  transform: skewX(-2deg);
  transform-origin: left center;
}

h2 {
  font-size: clamp(1.65rem, 3.4vw, 2.5rem);
  transform: skewX(-1.6deg);
  transform-origin: left center;
}

h3 { font-size: clamp(1.12rem, 1.9vw, 1.5rem); }

p { text-wrap: pretty; }

a { color: inherit; }

/* ---------- 焦点可见 ---------- */
:where(a, button, summary, [tabindex]):focus-visible {
  outline: 3px solid var(--red);
  outline-offset: 2px;
  border-radius: 2px;
}

.site-header :where(a, button):focus-visible,
.site-footer :where(a, button):focus-visible,
.section--night :where(a, button):focus-visible {
  outline-color: var(--green-light);
}

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

.section { padding-block: clamp(3rem, 7vw, 6.5rem); }
.section--tight { padding-block: clamp(1.75rem, 4vw, 3rem); }
.section--night { background-color: var(--night); color: var(--chalk); }
.section--mist { background-color: var(--mist-bg); }
.section--red { background-color: var(--red); color: var(--chalk); }

.mono {
  font-family: var(--font-data);
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.01em;
}

.data-figure {
  font-family: var(--font-data);
  font-weight: 700;
  font-size: clamp(2rem, 5vw, 4rem);
  line-height: 1;
  letter-spacing: -0.03em;
  font-variant-numeric: tabular-nums;
}

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  padding: 0.68rem 1.15rem;
  font-family: var(--font-body);
  font-size: 0.84rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  line-height: 1.2;
  text-decoration: none;
  white-space: nowrap;
  border: 1px solid transparent;
  border-radius: 2px 2px 12px 2px;
  transition: background-color var(--t), color var(--t), border-color var(--t), transform var(--t);
}

.btn--primary {
  background-color: var(--red);
  color: var(--chalk);
}
.btn--primary:hover { background-color: var(--red-deep); }

.btn--signal {
  background-color: var(--green-light);
  color: var(--night);
}
.btn--signal:hover { background-color: var(--chalk); }

.btn--ghost {
  background-color: transparent;
  color: var(--chalk);
  border-color: rgba(167, 196, 212, 0.42);
}
.btn--ghost:hover {
  color: var(--night);
  background-color: var(--mist);
  border-color: var(--mist);
}

.btn--outline {
  background-color: transparent;
  color: var(--night);
  border-color: rgba(14, 17, 19, 0.32);
}
.btn--outline:hover {
  color: var(--chalk);
  background-color: var(--night);
  border-color: var(--night);
}

/* ---------- 跳转链接 ---------- */
.skip-link {
  position: absolute;
  top: 10px;
  left: 16px;
  z-index: 300;
  padding: 0.62rem 1.1rem;
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--night);
  background-color: var(--chalk);
  border-radius: 4px;
  box-shadow: 0 10px 28px rgba(0, 0, 0, 0.4);
  text-decoration: none;
  transform: translateY(-190%);
  transition: transform var(--t);
}
.skip-link:focus { transform: translateY(0); }

/* =========================================================
   页头
   ========================================================= */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  isolation: isolate;
  background-color: var(--night);
  color: var(--chalk);
}

.site-header::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  background-image: repeating-linear-gradient(
    115deg,
    rgba(167, 196, 212, 0.05) 0 1px,
    transparent 1px 24px
  );
  pointer-events: none;
}

/* 状态细条 */
.header-status {
  position: relative;
  z-index: 1;
  background-color: #080A0B;
  border-bottom: 1px solid rgba(167, 196, 212, 0.16);
}

.header-status__inner {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  min-height: 34px;
  padding-block: 0.3rem;
}

.header-status__note {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.72rem;
  letter-spacing: 0.09em;
  color: var(--mist);
}

.status-dot {
  width: 7px;
  height: 7px;
  flex: none;
  border-radius: 50%;
  background-color: var(--green-light);
  box-shadow: 0 0 0 3px rgba(52, 211, 153, 0.2);
}

.header-status__meta {
  margin-left: auto;
  font-family: var(--font-data);
  font-size: 0.66rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: rgba(167, 196, 212, 0.62);
}

/* 指令栏 */
.command-bar {
  position: relative;
  z-index: 1;
  background-image: linear-gradient(90deg, #0E1113 0%, #131A1E 55%, var(--tactic) 100%);
  border-bottom: 1px solid rgba(167, 196, 212, 0.14);
}

.command-bar__inner {
  display: flex;
  align-items: center;
  gap: 1.1rem;
  min-height: 68px;
  padding-block: 0.55rem;
}

/* 品牌 */
.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  flex: none;
  text-decoration: none;
  color: var(--chalk);
}

.brand__mark {
  position: relative;
  width: 38px;
  height: 36px;
  flex: none;
  background-color: var(--red);
  clip-path: polygon(0 0, 100% 0, 74% 100%, 0 100%);
}

.brand__mark::before,
.brand__mark::after {
  content: "";
  position: absolute;
  background-color: var(--chalk);
  clip-path: polygon(0 0, 100% 0, 74% 100%, 0 100%);
}

.brand__mark::before { width: 7px; height: 19px; left: 9px; bottom: 8px; }
.brand__mark::after { width: 7px; height: 11px; left: 21px; bottom: 8px; }

.brand__text { display: block; }

.brand__name {
  display: block;
  font-family: var(--font-display);
  font-size: 1.16rem;
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: 0.03em;
  transform: skewX(-3deg);
}

.brand__tagline {
  display: block;
  margin-top: 0.2rem;
  font-size: 0.66rem;
  line-height: 1.4;
  letter-spacing: 0.08em;
  color: rgba(167, 196, 212, 0.82);
}

/* 移动端开关 */
.nav-toggle {
  display: none;
  align-items: center;
  gap: 0.55rem;
  margin-left: auto;
  padding: 0.5rem 0.75rem;
  color: var(--chalk);
  border: 1px solid rgba(167, 196, 212, 0.34);
  border-radius: 2px;
  transition: border-color var(--t), background-color var(--t);
}
.nav-toggle:hover { border-color: var(--mist); background-color: rgba(167, 196, 212, 0.1); }

.nav-toggle__bars {
  display: grid;
  gap: 3px;
  width: 16px;
  flex: none;
}
.nav-toggle__bars span {
  display: block;
  height: 2px;
  background-color: currentColor;
  transition: transform var(--t), opacity var(--t);
}

.nav-toggle__label {
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.14em;
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:nth-child(1) { transform: translateY(5px) 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(-5px) rotate(-45deg); }

/* 导航 */
.site-nav {
  display: flex;
  align-items: center;
  gap: 0.9rem;
  margin-left: auto;
}

.site-nav__list {
  display: flex;
  align-items: center;
  gap: 0.1rem;
}

.site-nav__item { display: block; }

.site-nav__link {
  position: relative;
  display: inline-flex;
  align-items: baseline;
  gap: 0.38rem;
  padding: 0.5rem 0.62rem 0.62rem;
  font-size: 0.845rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  color: rgba(247, 249, 246, 0.76);
  text-decoration: none;
  transition: color var(--t), background-color var(--t);
}
.site-nav__link:hover { color: var(--chalk); background-color: rgba(167, 196, 212, 0.1); }

.site-nav__index {
  font-family: var(--font-data);
  font-size: 0.58rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  color: rgba(167, 196, 212, 0.6);
}

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

.site-nav__link[aria-current="page"] .site-nav__index { color: var(--green-light); }

.site-nav__link[aria-current="page"]::after {
  content: "";
  position: absolute;
  left: 0.62rem;
  right: 0.62rem;
  bottom: 0.22rem;
  height: 2px;
  background-color: var(--red);
  transform: skewX(-14deg);
}

.command-actions {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  padding-left: 0.9rem;
  margin-left: 0.2rem;
  border-left: 1px solid rgba(167, 196, 212, 0.2);
}

/* 滚动进度 */
.scroll-progress {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 2px;
  overflow: hidden;
  background-color: rgba(167, 196, 212, 0.16);
}

.scroll-progress__fill {
  display: block;
  width: 100%;
  height: 100%;
  transform: scaleX(0);
  transform-origin: 0 50%;
  background-image: linear-gradient(90deg, var(--red) 0%, var(--red) 58%, var(--green-light) 100%);
}

/* =========================================================
   页脚
   ========================================================= */
.site-footer {
  background-color: var(--night);
  color: var(--chalk);
}

.feedback-strip {
  position: relative;
  overflow: hidden;
  background-color: var(--red);
  color: var(--chalk);
}

.feedback-strip::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: repeating-linear-gradient(
    115deg,
    rgba(247, 249, 246, 0.09) 0 12px,
    transparent 12px 40px
  );
  pointer-events: none;
}

.feedback-strip__inner {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem 1.75rem;
  padding-block: clamp(1.15rem, 3vw, 1.7rem);
}

.feedback-strip__text {
  flex: 1 1 320px;
  font-family: var(--font-display);
  font-size: clamp(1.02rem, 2.1vw, 1.45rem);
  font-weight: 800;
  line-height: 1.3;
  letter-spacing: 0.015em;
  transform: skewX(-2deg);
}

.feedback-strip__cta {
  flex: none;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.72rem 1.35rem;
  font-size: 0.88rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--chalk);
  background-color: var(--night);
  border-radius: 2px 2px 12px 2px;
  text-decoration: none;
  transition: background-color var(--t), transform var(--t);
}
.feedback-strip__cta:hover {
  background-color: var(--tactic);
  transform: translateX(4px);
}

.footer-main { padding-block: clamp(2.4rem, 5vw, 4rem); }

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.45fr;
  gap: clamp(1.75rem, 4vw, 3rem);
  align-items: start;
}

.footer-brand__mark {
  display: block;
  width: 54px;
  height: 6px;
  margin-bottom: 1.1rem;
  background-color: var(--red);
  transform: skewX(-22deg);
}

.footer-brand__line {
  font-family: var(--font-display);
  font-size: clamp(1.02rem, 1.7vw, 1.22rem);
  font-weight: 800;
  line-height: 1.35;
  letter-spacing: 0.025em;
  color: var(--chalk);
  max-width: 24ch;
  transform: skewX(-2deg);
}

.footer-brand__meta {
  margin-top: 0.95rem;
  max-width: 30ch;
  font-size: 0.82rem;
  line-height: 1.7;
  color: rgba(167, 196, 212, 0.82);
}

.footer-col__title {
  margin-bottom: 1rem;
  font-family: var(--font-data);
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: 0.22em;
  color: var(--green-light);
  transform: none;
}

.footer-col__list { display: grid; gap: 0.6rem; }

.footer-col__list a {
  display: inline-block;
  font-size: 0.9rem;
  color: rgba(247, 249, 246, 0.82);
  text-decoration: none;
  transition: color var(--t), padding-left var(--t);
}
.footer-col__list a:hover {
  color: var(--green-light);
  padding-left: 6px;
}

.footer-contact { display: grid; gap: 0.7rem; align-content: start; }

.footer-contact__row {
  display: grid;
  gap: 0.12rem;
  font-size: 0.85rem;
  line-height: 1.62;
  color: rgba(247, 249, 246, 0.86);
}

.footer-contact__label {
  font-family: var(--font-data);
  font-size: 0.62rem;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: rgba(167, 196, 212, 0.72);
}

.footer-contact__note {
  font-size: 0.78rem;
  line-height: 1.65;
  color: rgba(167, 196, 212, 0.66);
}

.footer-legal {
  border-top: 1px solid rgba(167, 196, 212, 0.16);
  background-color: #0A0D0F;
}

.footer-legal__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.6rem 1.5rem;
  padding-block: 1.1rem 1.35rem;
  font-size: 0.76rem;
  letter-spacing: 0.03em;
  color: rgba(167, 196, 212, 0.72);
}

.footer-legal__copy { line-height: 1.6; }

.footer-legal__links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 1.15rem;
}

.footer-legal__links a {
  color: inherit;
  text-decoration: none;
  border-bottom: 1px solid rgba(167, 196, 212, 0.3);
  transition: color var(--t), border-color var(--t);
}
.footer-legal__links a:hover {
  color: var(--chalk);
  border-bottom-color: var(--red);
}

/* =========================================================
   通用内容组件
   ========================================================= */
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.45rem;
  padding-block: 1.1rem 0;
  font-size: 0.76rem;
  letter-spacing: 0.06em;
  color: var(--fence);
}

.breadcrumb a {
  color: inherit;
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--t), border-color var(--t);
}
.breadcrumb a:hover { color: var(--red); border-bottom-color: currentColor; }

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

.breadcrumb [aria-current="page"] {
  color: var(--night);
  font-weight: 700;
}

.section--night .breadcrumb { color: rgba(167, 196, 212, 0.8); }
.section--night .breadcrumb [aria-current="page"] { color: var(--chalk); }
.section--night .breadcrumb a:hover { color: var(--green-light); }

.prose {
  max-width: 760px;
  font-size: 1.0625rem;
  line-height: 1.85;
}
.prose > * + * { margin-top: 1.15em; }
.prose h2 { margin-top: 1.9em; }
.prose h3 { margin-top: 1.6em; }
.prose ul, .prose ol { padding-left: 1.25em; list-style: disc; }
.prose ol { list-style: decimal; }
.prose li + li { margin-top: 0.45em; }
.prose a { color: var(--red); text-underline-offset: 0.2em; }
.prose blockquote {
  padding-left: 1.1rem;
  border-left: 3px solid var(--red);
  color: var(--tactic);
}

.grid { display: grid; gap: clamp(1rem, 2.2vw, 1.5rem); }
.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)); }

.card {
  position: relative;
  padding: clamp(1.05rem, 2vw, 1.6rem);
  background-color: var(--chalk);
  border: 1px solid rgba(14, 17, 19, 0.12);
  border-radius: 2px 2px 18px 2px;
  transition: border-color var(--t), transform var(--t), box-shadow var(--t);
}
.card:hover {
  border-color: rgba(200, 16, 46, 0.4);
  box-shadow: 0 14px 30px rgba(14, 17, 19, 0.1);
}

.card--night {
  background-color: var(--tactic);
  border-color: rgba(167, 196, 212, 0.18);
  color: var(--chalk);
}

/* 图片容器基础规则（页面阶段放 <img> 占位） */
.media-frame {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16 / 10;
  background-color: var(--tactic);
  border-radius: 2px 2px 22px 2px;
}

.media-frame--wide { aspect-ratio: 21 / 9; }
.media-frame--tall { aspect-ratio: 4 / 5; }
.media-frame--square { aspect-ratio: 1 / 1; }

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

.media-frame::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: linear-gradient(
    113deg,
    transparent 52%,
    rgba(200, 16, 46, 0.22) 52.2% 60%,
    transparent 60.2%
  );
  pointer-events: none;
}

/* ---------- 滚动显现（JS 加 .reveal-init） ---------- */
.reveal-init {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity var(--t-slow) var(--reveal-delay, 0ms),
              transform var(--t-slow) var(--reveal-delay, 0ms);
}

.reveal-init[data-reveal="done"] {
  opacity: 1;
  transform: none;
}

/* =========================================================
   响应式
   ========================================================= */
@media (max-width: 1240px) {
  .command-actions .btn--ghost { display: none; }
  .site-nav__link { font-size: 0.82rem; padding-inline: 0.5rem; }
}

@media (max-width: 1080px) {
  .header-status__meta { display: none; }
  .brand__tagline { display: none; }
  .brand__name { font-size: 1.08rem; }

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

  .site-nav {
    position: absolute;
    left: 0;
    right: 0;
    top: 100%;
    z-index: 5;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    margin-left: 0;
    padding: 0.5rem var(--gutter) 1.35rem;
    max-height: calc(100vh - 70px);
    overflow-y: auto;
    background-color: #0A0D0F;
    border-bottom: 2px solid var(--red);
    box-shadow: 0 22px 44px rgba(0, 0, 0, 0.5);
  }

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

  .site-nav__list {
    flex-direction: column;
    align-items: stretch;
    width: 100%;
    gap: 0;
  }

  .site-nav__link {
    display: flex;
    align-items: baseline;
    width: 100%;
    padding: 0.78rem 0.1rem;
    font-size: 0.96rem;
    border-bottom: 1px solid rgba(167, 196, 212, 0.14);
  }

  .site-nav__link[aria-current="page"]::after {
    left: 0;
    right: auto;
    top: 0.72rem;
    bottom: 0.72rem;
    width: 3px;
    height: auto;
    transform: none;
  }

  .command-actions {
    flex-direction: column;
    align-items: stretch;
    gap: 0.5rem;
    width: 100%;
    margin: 0.9rem 0 0;
    padding: 0.95rem 0 0;
    border-left: 0;
    border-top: 1px solid rgba(167, 196, 212, 0.18);
  }

  .command-actions .btn { display: inline-flex; width: 100%; }
}

@media (max-width: 980px) {
  .footer-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .footer-brand { grid-column: 1 / -1; }
  .footer-brand__meta { max-width: none; }
}

@media (max-width: 960px) {
  .grid--3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .grid--4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

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

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

  .feedback-strip__inner { align-items: flex-start; }
  .feedback-strip__cta { width: 100%; justify-content: center; }

  .footer-legal__inner { flex-direction: column; align-items: flex-start; }
}

@media (max-width: 620px) {
  .footer-grid { grid-template-columns: minmax(0, 1fr); }
  .header-status__note { font-size: 0.68rem; letter-spacing: 0.06em; }
  .command-bar__inner { min-height: 62px; gap: 0.6rem; }
}

/* ---------- 降低动态偏好 ---------- */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }

  .reveal-init {
    opacity: 1 !important;
    transform: none !important;
  }

  .feedback-strip__cta:hover { transform: none; }
  h1, h2 { transform: none; }
}