/* =========================================================================
   MK体育正版 · /assets/site.css
   共享外壳：紧凑命令栏 + 联赛轨道 + 纵向长卷页脚
   ========================================================================= */

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

html { -webkit-text-size-adjust: 100%; 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%; }
table { border-collapse: collapse; width: 100%; }
hr { border: 0; border-top: 1px solid rgba(35, 24, 15, .16); margin: 0; }
button, input, select, textarea { font: inherit; color: inherit; }
button { background: none; border: 0; padding: 0; cursor: pointer; }
a { color: inherit; text-decoration: none; }
[hidden] { display: none !important; }

/* ---------- 2. 设计变量 ---------- */
:root {
  --ink-900: #0B2B22;
  --ink-700: #124639;
  --ink-500: #1E6B52;
  --mint-100: #DDEBE3;
  --paper-50: #F6F1E4;
  --orange-500: #F2601F;
  --amber-300: #FFA23A;
  --volt-400: #D9F227;
  --slate-400: #6E8CA8;
  --espresso-950: #23180F;
  --lead-500: #5D6A6E;

  --font-display: "Arial Narrow", "Helvetica Neue Condensed", "Roboto Condensed",
                  "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  --font-body: "Noto Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei",
               system-ui, -apple-system, sans-serif;
  --font-mono: ui-monospace, "SFMono-Regular", "Cascadia Mono", "Roboto Mono",
               Menlo, Consolas, monospace;

  --shell-max: 1320px;
  --gutter: clamp(16px, 3.6vw, 44px);

  --rule-light: 1px solid rgba(35, 24, 15, .16);
  --rule-dark: 1px solid rgba(221, 235, 227, .16);

  --sp-1: 4px;
  --sp-2: 8px;
  --sp-3: 12px;
  --sp-4: 16px;
  --sp-5: 24px;
  --sp-6: 32px;
  --sp-7: 48px;
  --sp-8: 64px;
  --sp-9: 96px;

  --radius: 2px;
  --ease-out: cubic-bezier(.22, .61, .36, 1);
  --shadow-deep: 0 18px 34px -24px rgba(0, 0, 0, .9);
}

/* ---------- 3. 页面骨架与中文排版 ---------- */
body {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  background-color: var(--paper-50);
  background-image:
    radial-gradient(rgba(35, 24, 15, .05) 1px, transparent 1.2px),
    radial-gradient(rgba(35, 24, 15, .035) 1px, transparent 1.2px);
  background-size: 5px 5px, 11px 11px;
  background-position: 0 0, 3px 4px;
  color: var(--espresso-950);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.75;
  font-weight: 420;
  letter-spacing: .005em;
}

#main-content {
  flex: 1 0 auto;
  scroll-margin-top: 120px;
}

.shell {
  width: 100%;
  max-width: var(--shell-max);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

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

:where(a, button, [tabindex]):focus-visible {
  outline: 2px solid var(--volt-400);
  outline-offset: 3px;
  border-radius: var(--radius);
}

.skip-link {
  position: absolute;
  top: 10px;
  left: 10px;
  z-index: 200;
  transform: translateY(-240%);
  padding: 10px 18px;
  background: var(--volt-400);
  color: var(--ink-900);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .14em;
  transition: transform .2s var(--ease-out);
}

.skip-link:focus {
  transform: translateY(0);
}

/* ---------- 4. 通用排版与索引组件 ---------- */
.num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-feature-settings: "tnum" 1;
}

.index-tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--lead-500);
  font-variant-numeric: tabular-nums;
}

.display-1,
.display-2 {
  font-family: var(--font-display);
  font-weight: 700;
  font-stretch: condensed;
  text-transform: uppercase;
  color: var(--espresso-950);
}

.display-1 {
  font-size: clamp(2.75rem, 9vw, 8.25rem);
  line-height: .9;
  letter-spacing: -.015em;
}

.display-2 {
  font-size: clamp(1.75rem, 4.6vw, 3.5rem);
  line-height: .96;
  letter-spacing: -.01em;
}

.prose {
  max-width: 68ch;
  font-size: 17px;
  line-height: 1.78;
}

.prose > * + * { margin-top: 1em; }
.prose h2 { font-size: 22px; line-height: 1.4; margin-top: 1.8em; }
.prose h3 { font-size: 18px; line-height: 1.5; margin-top: 1.6em; }
.prose ul, .prose ol { padding-left: 1.2em; }
.prose ul { list-style: square; }
.prose ol { list-style: decimal; }

.crumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--sp-2);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--lead-500);
}

.crumb a { color: var(--lead-500); }
.crumb a:hover { color: var(--orange-500); }
.crumb__sep { color: rgba(93, 106, 110, .55); }
.crumb [aria-current="page"] { color: var(--espresso-950); }

.grid {
  display: grid;
  gap: clamp(20px, 3vw, 36px);
}

.grid--7-5 { grid-template-columns: 7fr 5fr; }
.grid--8-4 { grid-template-columns: 8fr 4fr; }
.grid--3-9 { grid-template-columns: 3fr 9fr; }

.rule-band {
  height: 8px;
  background: repeating-linear-gradient(135deg,
    var(--ink-900) 0 10px,
    var(--ink-700) 10px 20px);
}

/* ---------- 5. 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 13px 22px;
  border: 1px solid var(--espresso-950);
  border-radius: var(--radius);
  background: transparent;
  color: var(--espresso-950);
  font-size: 12.5px;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
  line-height: 1;
  transition: background-color .18s var(--ease-out),
              border-color .18s var(--ease-out),
              color .18s var(--ease-out),
              transform .18s var(--ease-out);
}

.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }

.btn--solid {
  background: var(--orange-500);
  border-color: var(--orange-500);
  color: #1B0D04;
}

.btn--solid:hover {
  background: var(--amber-300);
  border-color: var(--amber-300);
}

.btn--ink {
  background: var(--ink-900);
  border-color: var(--ink-900);
  color: var(--mint-100);
}

.btn--ink:hover {
  background: var(--ink-500);
  border-color: var(--ink-500);
  color: #FFFFFF;
}

.btn--ghost {
  border-color: rgba(221, 235, 227, .42);
  color: var(--mint-100);
}

.btn--ghost:hover {
  border-color: var(--volt-400);
  color: var(--volt-400);
}

.btn--sm {
  padding: 9px 15px;
  font-size: 11px;
  letter-spacing: .14em;
}

/* ---------- 6. 图片容器基础规则 ---------- */
.frame {
  position: relative;
  display: block;
  overflow: hidden;
  border: 1px solid var(--espresso-950);
  border-radius: var(--radius);
  background: var(--ink-700);
}

.frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(.72) contrast(1.06) brightness(.94);
}

.frame--wide { aspect-ratio: 16 / 7; }
.frame--band { aspect-ratio: 21 / 6; }
.frame--portrait { aspect-ratio: 4 / 5; }
.frame--square { aspect-ratio: 1 / 1; }

.frame--halftone {
  background-color: var(--ink-700);
  background-image: radial-gradient(rgba(221, 235, 227, .22) 1px, transparent 1.3px);
  background-size: 6px 6px;
}

.frame__caption {
  position: absolute;
  left: 0;
  bottom: 0;
  max-width: 100%;
  padding: 7px 12px;
  background: var(--ink-900);
  color: var(--mint-100);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .12em;
  text-transform: uppercase;
}

/* ---------- 7. 页头 ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 80;
  background: var(--ink-900);
  color: var(--mint-100);
  box-shadow: 0 1px 0 rgba(221, 235, 227, .14);
  transition: box-shadow .24s var(--ease-out);
  isolation: isolate;
}

.site-header.is-scrolled {
  box-shadow: 0 1px 0 rgba(221, 235, 227, .14), var(--shadow-deep);
}

.scroll-progress {
  position: absolute;
  top: 0;
  left: 0;
  display: block;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, var(--orange-500), var(--volt-400));
  transform: scaleX(0);
  transform-origin: 0 50%;
  pointer-events: none;
  z-index: 4;
}

.command-bar {
  position: relative;
  z-index: 3;
}

.command-bar__inner {
  display: flex;
  align-items: center;
  gap: clamp(14px, 2vw, 28px);
  max-width: var(--shell-max);
  margin-inline: auto;
  padding: 12px var(--gutter);
}

.command-bar__brandbar {
  display: flex;
  align-items: center;
  gap: clamp(12px, 1.6vw, 22px);
  min-width: 0;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex: none;
}

.brand__mark {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  background: var(--orange-500);
  color: #1B0D04;
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: .02em;
  border-radius: var(--radius);
  flex: none;
}

.brand__word {
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--paper-50);
  white-space: nowrap;
}

.round-status {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-width: 0;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .1em;
  color: var(--slate-400);
  white-space: nowrap;
}

.round-status__dot {
  display: block;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--volt-400);
  flex: none;
  animation: mk-pulse 2.6s ease-in-out infinite;
}

@keyframes mk-pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(217, 242, 39, .55); }
  50% { box-shadow: 0 0 0 6px rgba(217, 242, 39, 0); }
}

.round-status__label {
  overflow: hidden;
  text-overflow: ellipsis;
}

.round-status--footer {
  margin-top: 18px;
  padding-top: 14px;
  border-top: var(--rule-dark);
  white-space: normal;
}

.nav-toggle {
  display: none;
  align-items: center;
  gap: 9px;
  margin-left: auto;
  padding: 9px 13px;
  border: 1px solid rgba(221, 235, 227, .32);
  border-radius: var(--radius);
  color: var(--paper-50);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .14em;
  text-transform: uppercase;
  transition: border-color .18s var(--ease-out), color .18s var(--ease-out);
}

.nav-toggle:hover {
  border-color: var(--volt-400);
  color: var(--volt-400);
}

.nav-toggle__bars {
  position: relative;
  display: block;
  width: 18px;
  height: 10px;
  flex: none;
}

.nav-toggle__bars::before,
.nav-toggle__bars::after {
  content: "";
  position: absolute;
  left: 0;
  width: 100%;
  height: 1.5px;
  background: currentColor;
  transition: transform .22s var(--ease-out);
}

.nav-toggle__bars::before { top: 0; }
.nav-toggle__bars::after { bottom: 0; }

[data-nav-toggle][aria-expanded="true"] .nav-toggle__bars::before {
  transform: translateY(4.25px) rotate(45deg);
}

[data-nav-toggle][aria-expanded="true"] .nav-toggle__bars::after {
  transform: translateY(-4.25px) rotate(-45deg);
}

.primary-nav { margin-left: auto; }

.primary-nav__list {
  display: flex;
  align-items: stretch;
  gap: 2px;
}

.primary-nav__list a {
  position: relative;
  display: block;
  padding: 9px 16px 10px;
  border: 1px solid transparent;
  border-radius: var(--radius);
  color: rgba(221, 235, 227, .74);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: .06em;
  white-space: nowrap;
  transition: color .18s var(--ease-out),
              background-color .18s var(--ease-out),
              border-color .18s var(--ease-out);
}

.primary-nav__list a::before {
  content: attr(data-index);
  position: absolute;
  top: 3px;
  right: 6px;
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: .08em;
  color: rgba(110, 140, 168, .9);
  pointer-events: none;
}

.primary-nav__list a:hover {
  color: var(--paper-50);
  background: rgba(30, 107, 82, .5);
}

.primary-nav__list a[aria-current="page"] {
  background: var(--volt-400);
  border-color: var(--volt-400);
  color: var(--ink-900);
  font-weight: 700;
}

.primary-nav__list a[aria-current="page"]::before {
  color: rgba(11, 43, 34, .62);
}

/* ---------- 8. 联赛轨道 ---------- */
.league-rail {
  position: relative;
  z-index: 1;
  background: var(--ink-700);
  border-top: 1px solid rgba(221, 235, 227, .12);
}

.league-rail__viewport {
  max-width: var(--shell-max);
  margin-inline: auto;
  padding-inline: var(--gutter);
  overflow-x: auto;
  overflow-y: hidden;
  scrollbar-width: thin;
  scrollbar-color: rgba(217, 242, 39, .55) transparent;
  -webkit-overflow-scrolling: touch;
}

.league-rail__viewport::-webkit-scrollbar { height: 4px; }
.league-rail__viewport::-webkit-scrollbar-track { background: transparent; }
.league-rail__viewport::-webkit-scrollbar-thumb {
  background: rgba(217, 242, 39, .45);
  border-radius: 2px;
}

.league-rail__track {
  display: flex;
  align-items: stretch;
  min-width: max-content;
  cursor: grab;
}

.league-rail__track:active { cursor: grabbing; }

.league-chip {
  position: relative;
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  padding: 10px 16px;
  border-right: 1px solid rgba(221, 235, 227, .1);
  border-radius: 0;
  color: rgba(221, 235, 227, .72);
  white-space: nowrap;
  transition: background-color .16s var(--ease-out), color .16s var(--ease-out);
}

.league-chip:first-child { padding-left: 0; }

.league-chip:hover {
  background: rgba(217, 242, 39, .07);
  color: var(--paper-50);
}

.league-chip__code {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--volt-400);
}

.league-chip__name {
  font-size: 12.5px;
  letter-spacing: .06em;
}

.league-chip__rate {
  font-family: var(--font-mono);
  font-size: 12px;
  font-variant-numeric: tabular-nums;
  color: var(--mint-100);
}

.league-chip[aria-pressed="true"] {
  background: rgba(217, 242, 39, .13);
  color: #FFFFFF;
}

.league-chip[aria-pressed="true"]::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 2px;
  background: var(--volt-400);
}

/* ---------- 9. 页脚 ---------- */
.site-footer {
  margin-top: var(--sp-9);
  background: var(--ink-900);
  color: var(--mint-100);
  border-top: 3px solid var(--orange-500);
  font-size: 15px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.45fr;
  gap: clamp(24px, 4vw, 56px);
  padding-block: clamp(40px, 6vw, 72px) clamp(32px, 4.5vw, 52px);
}

.footer-col { min-width: 0; }

.footer-col__title {
  margin-bottom: 16px;
  padding-bottom: 9px;
  border-bottom: var(--rule-dark);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--slate-400);
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
}

.footer-claim {
  max-width: 28ch;
  font-size: 15.5px;
  line-height: 1.7;
  color: rgba(221, 235, 227, .82);
}

.footer-leagues {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px 14px;
}

.footer-league {
  display: inline-flex;
  align-items: baseline;
  gap: 7px;
  font-size: 14px;
  color: rgba(221, 235, 227, .8);
}

.footer-league__code {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: .12em;
  color: var(--ink-500);
  filter: brightness(1.9);
}

.footer-links li + li { margin-top: 10px; }

.footer-links a {
  display: inline-block;
  font-size: 14.5px;
  color: var(--mint-100);
  border-bottom: 1px solid transparent;
  transition: color .18s var(--ease-out), border-color .18s var(--ease-out);
}

.footer-links a:hover {
  color: var(--volt-400);
  border-bottom-color: var(--volt-400);
}

.footer-contact li + li { margin-top: 12px; }

.footer-contact__label {
  display: block;
  margin-bottom: 2px;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--slate-400);
}

.footer-contact__value {
  display: block;
  font-size: 14.5px;
  line-height: 1.6;
  color: var(--paper-50);
  word-break: break-word;
}

.footer-status {
  background: rgba(221, 235, 227, .045);
  border-top: var(--rule-dark);
}

.footer-status__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px 24px;
  padding-block: 13px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .08em;
  color: var(--slate-400);
}

.footer-status__text { color: rgba(217, 242, 39, .78); }

.footer-status__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 18px;
}

.footer-icp,
.footer-region {
  position: relative;
  padding-left: 12px;
}

.footer-icp::before,
.footer-region::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  width: 4px;
  height: 4px;
  margin-top: -2px;
  background: var(--orange-500);
  border-radius: 50%;
}

/* ---------- 10. 动效与显现 ---------- */
@media (prefers-reduced-motion: no-preference) {
  [data-reveal] {
    opacity: 0;
    transform: translateY(16px);
    transition: opacity .55s var(--ease-out), transform .55s var(--ease-out);
  }

  [data-reveal="band"] { transform: translateX(-22px); }

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

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
    scroll-behavior: auto !important;
  }

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

/* ---------- 11. 响应式 ---------- */
@media (max-width: 1180px) {
  .primary-nav__list a { padding: 9px 12px 10px; }
  .footer-grid { grid-template-columns: 1.4fr 1fr 1fr; }
  .footer-col--contact { grid-column: 1 / -1; }
  .footer-contact { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; }
  .footer-contact li + li { margin-top: 0; }
}

@media (max-width: 960px) {
  .nav-toggle { display: inline-flex; }

  .primary-nav {
    position: absolute;
    left: 0;
    right: 0;
    top: 100%;
    z-index: 5;
    margin-left: 0;
    max-height: 0;
    overflow: hidden;
    visibility: hidden;
    background: var(--ink-900);
    border-top: var(--rule-dark);
    border-bottom: 3px solid var(--volt-400);
    transition: max-height .32s var(--ease-out), visibility 0s linear .32s;
  }

  .primary-nav[data-open] {
    max-height: calc(100vh - 96px);
    visibility: visible;
    transition: max-height .32s var(--ease-out), visibility 0s linear 0s;
  }

  .primary-nav__list {
    flex-direction: column;
    gap: 0;
    max-width: var(--shell-max);
    margin-inline: auto;
    padding: 6px var(--gutter) 18px;
  }

  .primary-nav__list li { border-bottom: 1px solid rgba(221, 235, 227, .1); }
  .primary-nav__list li:last-child { border-bottom: 0; }

  .primary-nav__list a {
    padding: 15px 34px 15px 0;
    font-size: 15px;
    letter-spacing: .04em;
    color: var(--mint-100);
    background: transparent;
    border-color: transparent;
  }

  .primary-nav__list a::before {
    top: 50%;
    right: 2px;
    transform: translateY(-50%);
    font-size: 11px;
    color: var(--slate-400);
  }

  .primary-nav__list a[aria-current="page"] {
    background: transparent;
    border-color: transparent;
    color: var(--volt-400);
  }

  .primary-nav__list a[aria-current="page"]::before { color: var(--volt-400); }

  .grid--7-5,
  .grid--8-4,
  .grid--3-9 { grid-template-columns: 1fr; }

  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-col--brand { grid-column: 1 / -1; }
  .footer-col--contact { grid-column: 1 / -1; }
  .footer-contact { grid-template-columns: 1fr; gap: 0; }
  .footer-contact li + li { margin-top: 12px; }
}

@media (max-width: 640px) {
  body { font-size: 16.5px; }
  .round-status__season { display: none; }
  .brand__mark { width: 30px; height: 30px; font-size: 13px; }
  .brand__word { font-size: 13.5px; letter-spacing: .14em; }
  .league-chip { padding: 9px 13px; }
  .footer-grid { grid-template-columns: 1fr; gap: 30px; }
  .footer-status__inner { flex-direction: column; align-items: flex-start; gap: 8px; }
  .footer-status__meta { gap: 8px 14px; }
}

/* ---------- 12. 打印兜底 ---------- */
@media print {
  .site-header,
  .site-footer,
  .scroll-progress { display: none !important; }
  body { background: #FFFFFF; }
}