/* =========================================================
   九州娱乐赛事 · 共享样式表 /assets/site.css
   结构：重置 → 变量 → 中文排版 → 布局 → 通用组件 → 侧边轨道 → 页脚 → 响应式
   ========================================================= */

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

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

body { margin: 0; }

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

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

button { font: inherit; color: inherit; }

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

p { margin: 0; }

h1, h2, h3, h4, h5, h6 { margin: 0; }

main { display: block; }

#main-content { display: block; min-height: 50vh; }

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

html.nav-open,
html.nav-open body { overflow: hidden; }

/* ---------- 2. 变量 ---------- */
:root {
  --bg: #070B1A;
  --panel: #101A3A;
  --line: #1E2A55;
  --cyan: #2EF2FF;
  --orange: #FF6A1A;
  --gold: #C9A227;
  --ink: #E8EEFF;
  --ink-2: #9AA7C7;
  --green: #22D39A;
  --red: #FF4D6D;
  --deep: #04060F;

  --font-head: "Archivo Narrow", "Noto Sans SC", "Source Han Sans SC", "HarmonyOS Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  --font-body: "Noto Sans SC", "HarmonyOS Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: "JetBrains Mono", "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;

  --rail-w: 252px;
  --rail-h: 64px;
  --wrap: 1180px;
  --cut: 16px;
  --scroll: 0;
  --ease: cubic-bezier(.2, .7, .3, 1);
}

/* ---------- 3. 中文排版 ---------- */
body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.75;
  letter-spacing: .01em;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

h1, h2, h3, h4 {
  font-family: var(--font-head);
  font-weight: 900;
  line-height: 1.14;
  letter-spacing: 0;
}

h1 {
  font-size: clamp(2.4rem, 5vw, 4.5rem);
  line-height: 1.04;
  letter-spacing: -.01em;
}

h2 { font-size: clamp(1.5rem, 2.4vw, 2rem); }

h3 { font-size: 1.25rem; font-weight: 800; }

h4 { font-size: 1.02rem; font-weight: 800; letter-spacing: .02em; }

.num,
[data-year],
.stat__value,
.rail__label,
.navlist__idx {
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
  font-feature-settings: "tnum" 1;
}

.prose { max-width: 40em; }
.prose p { margin-bottom: 1.05em; }
.prose p:last-child { margin-bottom: 0; }

.lead {
  font-size: 1.05rem;
  color: var(--ink-2);
  max-width: 38em;
}

.muted { color: var(--ink-2); }

.meta {
  font-family: var(--mono);
  font-size: .72rem;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--ink-2);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--mono);
  font-size: .7rem;
  letter-spacing: .24em;
  text-transform: uppercase;
  color: var(--cyan);
}

.eyebrow::before {
  content: "";
  width: 22px;
  height: 1px;
  background: var(--cyan);
}

/* ---------- 4. 布局 ---------- */
.wrap {
  width: 100%;
  max-width: var(--wrap);
  margin-inline: auto;
  padding-inline: clamp(18px, 4.5vw, 44px);
}

.section { padding-block: clamp(48px, 7vw, 92px); }

.section--tight { padding-block: clamp(30px, 4vw, 56px); }

.section--alt {
  background: linear-gradient(180deg, rgba(16, 26, 58, .58), rgba(7, 11, 26, 0));
  border-block: 1px solid var(--line);
}

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

.grid {
  display: grid;
  gap: clamp(14px, 2vw, 24px);
}

.grid--2 { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.grid--3 { grid-template-columns: repeat(auto-fit, minmax(238px, 1fr)); }
.grid--4 { grid-template-columns: repeat(auto-fit, minmax(186px, 1fr)); }

.split {
  display: grid;
  gap: clamp(18px, 3vw, 36px);
  grid-template-columns: 1fr;
}

@media (min-width: 900px) {
  .split { grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr); }
  .split--flip { grid-template-columns: minmax(0, 1fr) minmax(0, 1.55fr); }
}

/* ---------- 5. 通用组件 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 12px 20px;
  border: 1px solid transparent;
  border-radius: 2px;
  background: var(--cyan);
  color: #04121A;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: .9rem;
  letter-spacing: .06em;
  cursor: pointer;
  clip-path: polygon(10px 0, 100% 0, 100% calc(100% - 10px), calc(100% - 10px) 100%, 0 100%, 0 10px);
  transition: transform .22s var(--ease), filter .22s var(--ease), background-color .22s var(--ease);
}

.btn:hover { transform: translateY(-2px); }

.btn--signal {
  background: var(--orange);
  color: #180702;
}

.btn--signal:hover { filter: drop-shadow(0 8px 20px rgba(255, 106, 26, .35)); }

.btn--ghost {
  background: transparent;
  border-color: var(--line);
  color: var(--ink);
  clip-path: none;
  border-radius: 2px;
}

.btn--ghost:hover {
  border-color: var(--cyan);
  color: var(--cyan);
  filter: none;
}

.panel {
  position: relative;
  background: linear-gradient(160deg, rgba(16, 26, 58, .96), rgba(9, 14, 33, .96));
  border: 1px solid var(--line);
  padding: clamp(18px, 2.4vw, 28px);
}

.panel--cut {
  clip-path: polygon(var(--cut) 0, 100% 0, 100% calc(100% - var(--cut)), calc(100% - var(--cut)) 100%, 0 100%, 0 var(--cut));
}

.panel__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  padding-bottom: 14px;
  margin-bottom: 16px;
  border-bottom: 1px solid var(--line);
}

.panel__title {
  font-family: var(--font-head);
  font-weight: 900;
  font-size: 1.08rem;
  letter-spacing: .01em;
}

.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  border: 1px solid var(--line);
  border-radius: 2px;
  background: rgba(16, 26, 58, .6);
  font-family: var(--mono);
  font-size: .72rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--ink-2);
}

.chip--on {
  border-color: var(--cyan);
  color: var(--cyan);
  background: rgba(46, 242, 255, .08);
}

.tag {
  display: inline-block;
  padding: 3px 9px;
  border: 1px solid var(--line);
  border-radius: 2px;
  font-family: var(--mono);
  font-size: .68rem;
  letter-spacing: .14em;
  color: var(--ink-2);
}

.tag--gold {
  border-color: rgba(201, 162, 39, .55);
  background: rgba(201, 162, 39, .08);
  color: var(--gold);
}

.tag--live {
  border-color: rgba(255, 106, 26, .55);
  background: rgba(255, 106, 26, .08);
  color: var(--orange);
}

.crumbs {
  padding-block: 14px;
  border-bottom: 1px solid var(--line);
}

.crumbs__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-family: var(--mono);
  font-size: .72rem;
  letter-spacing: .12em;
  color: var(--ink-2);
}

.crumbs__list li { display: inline-flex; align-items: center; }

.crumbs__list li::after {
  content: "/";
  margin-inline-start: 8px;
  color: var(--line);
}

.crumbs__list li:last-child::after { content: ""; margin: 0; }

.crumbs__list a:hover { color: var(--cyan); }

.crumbs__current { color: var(--ink); }

.stat {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.stat__value {
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  font-weight: 700;
  line-height: 1;
  color: var(--cyan);
}

.stat__label {
  font-size: .78rem;
  letter-spacing: .12em;
  color: var(--ink-2);
}

.stat--warm .stat__value { color: var(--orange); }

.media {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16 / 9;
  border: 1px solid var(--line);
  background: linear-gradient(135deg, #0B1230 0%, #122043 100%);
}

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

.media--cut {
  clip-path: polygon(20px 0, 100% 0, 100% calc(100% - 20px), calc(100% - 20px) 100%, 0 100%, 0 20px);
}

.media--tall { aspect-ratio: 3 / 4; }
.media--square { aspect-ratio: 1 / 1; }

.media__caption {
  position: absolute;
  inset-inline: 0;
  bottom: 0;
  padding: 12px 14px;
  background: linear-gradient(180deg, rgba(4, 6, 15, 0), rgba(4, 6, 15, .94));
  font-size: .78rem;
  line-height: 1.5;
  color: var(--ink-2);
}

.media__grid {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(46, 242, 255, .07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(46, 242, 255, .07) 1px, transparent 1px);
  background-size: 44px 44px;
}

.reveal {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity .46s var(--ease), transform .46s var(--ease);
}

.reveal.is-in {
  opacity: 1;
  transform: none;
}

/* ---------- 6. 跳过链接 ---------- */
.skip-link {
  position: fixed;
  top: 8px;
  inset-inline-start: 8px;
  z-index: 200;
  padding: 10px 16px;
  background: var(--cyan);
  color: #04121A;
  font-weight: 700;
  font-size: .85rem;
  border-radius: 2px;
  transform: translateY(-180%);
  transition: transform .2s var(--ease);
}

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

/* ---------- 7. 侧边轨道 / 顶部条 ---------- */
.rail {
  position: sticky;
  top: 0;
  z-index: 80;
  background: linear-gradient(180deg, #0A1026 0%, #070B1A 100%);
  border-bottom: 1px solid var(--line);
}

.rail__meter {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  z-index: 95;
  pointer-events: none;
  background: rgba(46, 242, 255, .12);
}

.rail__meter-fill {
  display: block;
  width: 100%;
  height: 100%;
  transform-origin: 0 50%;
  transform: scaleX(var(--scroll, 0));
  background: linear-gradient(90deg, var(--cyan), var(--orange));
  transition: transform .1s linear;
}

.rail__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: var(--rail-h);
  padding: 10px clamp(16px, 4vw, 24px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
}

.brand__mark {
  flex: none;
  width: 26px;
  height: 26px;
  background: linear-gradient(135deg, var(--cyan), var(--orange));
  clip-path: polygon(7px 0, 100% 0, 100% calc(100% - 7px), calc(100% - 7px) 100%, 0 100%, 0 7px);
}

.brand__text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.brand__name {
  font-family: var(--font-head);
  font-weight: 900;
  font-size: 1rem;
  letter-spacing: .04em;
  color: var(--ink);
}

.brand__tag {
  font-family: var(--mono);
  font-size: .66rem;
  letter-spacing: .12em;
  color: var(--ink-2);
}

.rail__toggle {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 9px 13px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 2px;
  color: var(--ink);
  font-size: .8rem;
  letter-spacing: .14em;
  cursor: pointer;
  transition: border-color .2s var(--ease), color .2s var(--ease);
}

.rail__toggle:hover,
.rail__toggle[aria-expanded="true"] {
  border-color: var(--cyan);
  color: var(--cyan);
}

.rail__bars {
  display: grid;
  gap: 4px;
  width: 18px;
}

.rail__bars i {
  display: block;
  height: 2px;
  background: var(--cyan);
  transition: transform .22s var(--ease), opacity .22s var(--ease);
}

.rail__toggle[aria-expanded="true"] .rail__bars i:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.rail__toggle[aria-expanded="true"] .rail__bars i:nth-child(2) { opacity: 0; }
.rail__toggle[aria-expanded="true"] .rail__bars i:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

.rail__nav {
  position: fixed;
  top: var(--rail-h);
  right: 0;
  bottom: 0;
  z-index: 79;
  width: min(88vw, 360px);
  padding: 22px 20px 44px;
  overflow-y: auto;
  background: linear-gradient(200deg, #101A3A 0%, #070B1A 72%);
  border-left: 1px solid var(--line);
  transform: translateX(103%);
  visibility: hidden;
  transition: transform .34s var(--ease), visibility .34s var(--ease);
}

.rail__nav[data-open="true"] {
  transform: translateX(0);
  visibility: visible;
}

.rail__label {
  margin-bottom: 14px;
  font-size: .66rem;
  letter-spacing: .24em;
  text-transform: uppercase;
  color: var(--ink-2);
}

.navlist {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.navlist__link {
  position: relative;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 13px 12px;
  border-left: 2px solid transparent;
  border-radius: 2px;
  font-size: .98rem;
  color: var(--ink-2);
  transition: color .2s var(--ease), background-color .2s var(--ease), border-color .2s var(--ease);
}

.navlist__link:hover {
  color: var(--ink);
  background: rgba(46, 242, 255, .07);
}

.navlist__link[aria-current="page"] {
  color: var(--cyan);
  border-left-color: var(--cyan);
  background: linear-gradient(90deg, rgba(46, 242, 255, .14), rgba(46, 242, 255, 0));
}

.navlist__idx {
  flex: none;
  font-size: .68rem;
  letter-spacing: .08em;
  color: var(--ink-2);
}

.navlist__link[aria-current="page"] .navlist__idx { color: var(--cyan); }

.navlist__name { flex: 1 1 auto; }

.navlist__tick {
  flex: none;
  width: 14px;
  height: 1px;
  background: var(--cyan);
  transform: scaleX(0);
  transform-origin: 100% 50%;
  transition: transform .24s var(--ease);
}

.navlist__link:hover .navlist__tick,
.navlist__link[aria-current="page"] .navlist__tick { transform: scaleX(1); }

.rail__cta {
  width: 100%;
  margin-top: 22px;
}

.rail__foot {
  display: none;
  flex-direction: column;
  gap: 14px;
  padding: 20px 22px 26px;
  border-top: 1px solid var(--line);
}

.rail__foot .btn { width: 100%; }

.rail__meta {
  font-family: var(--mono);
  font-size: .66rem;
  letter-spacing: .12em;
  line-height: 1.7;
  color: var(--ink-2);
}

.rail__scrim {
  position: fixed;
  inset: 0;
  z-index: 78;
  background: rgba(4, 6, 15, .72);
  opacity: 0;
  visibility: hidden;
  transition: opacity .3s var(--ease), visibility .3s var(--ease);
}

.rail__scrim[data-open="true"] {
  opacity: 1;
  visibility: visible;
}

/* ---------- 8. 页脚 ---------- */
.sitefoot {
  position: relative;
  margin-top: clamp(48px, 8vw, 110px);
  background: linear-gradient(180deg, #070B1A 0%, var(--deep) 100%);
  border-top: 1px solid var(--line);
  color: var(--ink);
}

.sitefoot__ruler {
  height: 10px;
  background-image: repeating-linear-gradient(90deg, var(--line) 0 1px, transparent 1px 12px);
}

.sitefoot__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 4vw, 48px);
  padding-block: clamp(36px, 5vw, 62px);
}

.sitefoot__brand {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.brand--foot {
  flex-direction: column;
  align-items: flex-start;
  gap: 12px;
}

.brand--foot .brand__name { font-size: 1.22rem; letter-spacing: .05em; }

.sitefoot__summary {
  max-width: 34em;
  font-size: .94rem;
  color: var(--ink-2);
}

.tagrow {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tagrow__item {
  padding: 4px 10px;
  border: 1px solid var(--line);
  border-radius: 2px;
  font-family: var(--mono);
  font-size: .66rem;
  letter-spacing: .14em;
  color: var(--ink-2);
}

.sitefoot__cols {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(156px, 1fr));
  gap: clamp(20px, 3vw, 32px);
}

.footcol__title {
  margin-bottom: 14px;
  font-family: var(--font-head);
  font-size: .76rem;
  font-weight: 800;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--cyan);
}

.footcol__list {
  display: flex;
  flex-direction: column;
  gap: 9px;
}

.footcol__list a {
  font-size: .92rem;
  color: var(--ink-2);
  text-underline-offset: 4px;
  transition: color .18s var(--ease);
}

.footcol__list a:hover {
  color: var(--cyan);
  text-decoration: underline;
  text-decoration-color: rgba(46, 242, 255, .5);
}

.footcol--contact .footcol__list { gap: 12px; }

.footcol__k {
  display: block;
  margin-bottom: 2px;
  font-family: var(--mono);
  font-size: .64rem;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--gold);
}

.footcol__v {
  display: block;
  font-size: .88rem;
  line-height: 1.65;
  color: var(--ink-2);
  word-break: break-word;
}

.footcol__note {
  margin-top: 14px;
  font-size: .78rem;
  line-height: 1.65;
  color: var(--ink-2);
  opacity: .82;
}

.sitefoot__base {
  border-top: 1px solid var(--line);
  background: rgba(4, 6, 15, .72);
}

.sitefoot__base-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px 24px;
  padding-block: 18px;
}

.sitefoot__legal,
.sitefoot__meta {
  font-family: var(--mono);
  font-size: .72rem;
  letter-spacing: .08em;
  line-height: 1.7;
  color: var(--ink-2);
}

.sitefoot__icp { color: var(--gold); }

/* ---------- 9. 桌面端：侧边轨道 ---------- */
@media (min-width: 1060px) {
  body { padding-inline-start: var(--rail-w); }

  .rail {
    position: fixed;
    inset-block: 0;
    inset-inline-start: 0;
    display: flex;
    flex-direction: column;
    width: var(--rail-w);
    border-bottom: 0;
    border-right: 1px solid var(--line);
    background: linear-gradient(180deg, #0B1228 0%, #070B1A 58%, #050A14 100%);
  }

  .rail__meter {
    right: auto;
    width: var(--rail-w);
  }

  .rail__head {
    flex-direction: column;
    align-items: flex-start;
    justify-content: flex-start;
    min-height: 0;
    padding: 26px 22px 22px;
    border-bottom: 1px solid var(--line);
  }

  .rail__toggle { display: none; }

  .brand {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }

  .brand__name { font-size: 1.35rem; letter-spacing: .06em; }
  .brand__tag { font-size: .68rem; letter-spacing: .15em; }

  .rail__nav {
    position: static;
    inset: auto;
    width: auto;
    flex: 1 1 auto;
    min-height: 0;
    padding: 22px 16px;
    overflow-y: auto;
    background: transparent;
    border-left: 0;
    transform: none;
    visibility: visible;
  }

  .navlist__link {
    padding: 11px 12px;
    font-size: .94rem;
  }

  .rail__cta { display: none; }

  .rail__foot { display: flex; }

  .rail__scrim { display: none; }

  .sitefoot__inner {
    grid-template-columns: minmax(240px, 1fr) minmax(0, 2fr);
  }
}

/* ---------- 10. 细部响应式 ---------- */
@media (max-width: 520px) {
  .brand__tag { display: none; }
  .sitefoot__base-inner { flex-direction: column; align-items: flex-start; }
}

@media (min-width: 521px) and (max-width: 1059px) {
  .brand__tag { font-size: .64rem; }
}

/* ---------- 11. 尊重减少动效 ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }

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

  .reveal {
    opacity: 1;
    transform: none;
  }
}