/* =========================================================
   ayx 爱游戏体育官网 — /assets/site.css
   共享层：reset / 变量 / 中文排版 / 页头 / 页脚 / 基础组件
   ========================================================= */

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

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

body {
  margin: 0;
  background: var(--field-900);
  color: var(--chalk);
  font-family: var(--font-sans);
  font-size: 17px;
  line-height: 1.7;
  letter-spacing: 0.01em;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, p, figure, blockquote, dl, dd { margin: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }
img, svg, video { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
table { border-collapse: collapse; width: 100%; }
main { display: block; }
[hidden] { display: none !important; }

/* ---------- 变量 ---------- */
:root {
  --field-900: #0E1F1A;
  --field-800: #14291F;
  --field-700: #1D3A2C;
  --yellow-400: #D9F227;
  --yellow-200: #EAF7A8;
  --orange-500: #FF6B1A;
  --chalk: #F4F6F1;
  --gray-600: #8A968F;
  --gray-300: #B9C3BE;
  --ink: #0A0F0D;

  --font-sans: "Helvetica Neue", Helvetica, Arial, system-ui, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", "Courier New", monospace;

  --radius-pill: 999px;
  --radius-cut: 12px;

  --shadow-hard: 5px 5px 0 var(--ink);
  --shadow-hard-lg: 8px 8px 0 var(--ink);

  --ease: cubic-bezier(0.2, 0.7, 0.2, 1);

  --shell: 1240px;
  --gutter: 24px;
  --section-gap: clamp(72px, 9vw, 140px);
  --block-gap: clamp(16px, 2vw, 32px);

  --header-h: 76px;
}

@media (max-width: 720px) {
  :root { --gutter: 18px; --header-h: 66px; }
}

/* ---------- 中文排版 ---------- */
p { margin-bottom: 1.35em; }
p:last-child { margin-bottom: 0; }

h1, h2, h3, h4 {
  line-height: 1.22;
  letter-spacing: -0.01em;
  text-wrap: balance;
}

h1 {
  font-size: clamp(2.6rem, 7vw, 5.2rem);
  font-weight: 900;
  letter-spacing: -0.03em;
  line-height: 1.02;
}

h2 {
  font-size: clamp(1.7rem, 3.4vw, 2.6rem);
  font-weight: 800;
}

h3 {
  font-size: clamp(1.15rem, 1.8vw, 1.45rem);
  font-weight: 700;
}

.heading-rule {
  display: block;
  width: 64px;
  height: 6px;
  background: var(--yellow-400);
  margin-bottom: 20px;
}

.display-num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-weight: 900;
  letter-spacing: -0.03em;
  color: var(--yellow-400);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--yellow-400);
}

.eyebrow::before {
  content: "";
  width: 22px;
  height: 2px;
  background: var(--yellow-400);
  flex: 0 0 auto;
}

/* ---------- 焦点 ---------- */
:focus-visible {
  outline: 3px solid var(--yellow-400);
  outline-offset: 3px;
  border-radius: 4px;
}

/* ---------- 布局壳 ---------- */
.shell {
  width: min(var(--shell), 100% - (var(--gutter) * 2));
  margin-inline: auto;
}

.section { padding-block: clamp(44px, 5vw, 88px); }
.section--tight { padding-block: clamp(28px, 3vw, 48px); }

.grid { display: grid; gap: var(--block-gap); }
.grid-12 { grid-template-columns: repeat(12, minmax(0, 1fr)); }
.grid-auto { grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }

.col-3 { grid-column: span 3; }
.col-4 { grid-column: span 4; }
.col-6 { grid-column: span 6; }
.col-8 { grid-column: span 8; }
.col-12 { grid-column: span 12; }

@media (max-width: 900px) {
  .grid-12 { grid-template-columns: repeat(6, minmax(0, 1fr)); }
  .col-3, .col-4 { grid-column: span 3; }
  .col-6, .col-8 { grid-column: span 6; }
}

@media (max-width: 640px) {
  .grid-12 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .col-3, .col-4, .col-6, .col-8 { grid-column: span 2; }
}

/* ---------- 色带 ---------- */
.band {
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 14px 0;
  background: var(--field-700);
  border-top: 2px solid var(--ink);
  border-bottom: 2px solid var(--ink);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--gray-300);
  text-transform: uppercase;
}

.band--yellow { background: var(--yellow-400); color: var(--ink); border-color: var(--ink); }
.band--orange { background: var(--orange-500); color: var(--ink); border-color: var(--ink); }
.band > .shell { display: flex; align-items: center; gap: 18px; flex-wrap: wrap; justify-content: space-between; }
.band strong { font-family: var(--font-sans); font-weight: 800; font-size: 14px; letter-spacing: 0.02em; }

/* ---------- 跳至正文 ---------- */
.skip-link {
  position: fixed;
  top: 10px;
  left: 12px;
  z-index: 300;
  transform: translateY(-220%);
  padding: 11px 18px;
  background: var(--yellow-400);
  color: var(--ink);
  font-weight: 800;
  font-size: 14px;
  border: 2px solid var(--ink);
  border-radius: 8px;
  box-shadow: 3px 3px 0 var(--ink);
  transition: transform 0.2s var(--ease);
}

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

/* ---------- 品牌 ---------- */
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
  flex: 0 0 auto;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  flex: 0 0 auto;
  background: var(--yellow-400);
  color: var(--ink);
  font-family: var(--font-mono);
  font-weight: 900;
  font-size: 15px;
  letter-spacing: 0.02em;
  border: 2px solid var(--ink);
  border-radius: 12px;
  box-shadow: 3px 3px 0 var(--ink);
}

.brand-text { display: flex; flex-direction: column; min-width: 0; }

.brand-name {
  font-weight: 800;
  font-size: 16px;
  line-height: 1.25;
  white-space: nowrap;
}

.brand-tagline {
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1.4;
  color: var(--gray-600);
  white-space: nowrap;
}

/* ---------- 页头 ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 90;
  background: var(--field-900);
  padding-block: 14px 10px;
  transition: padding-block 0.28s var(--ease);
}

.site-header[data-scrolled] { padding-block: 7px 6px; }

.header-shell {
  position: relative;
  display: flex;
  align-items: center;
  gap: 16px;
  width: min(var(--shell), 100% - (var(--gutter) * 2));
  margin-inline: auto;
  padding: 9px 12px 9px 14px;
  background: var(--field-800);
  border: 2px solid var(--ink);
  border-radius: var(--radius-pill);
  box-shadow: var(--shadow-hard);
  transition: box-shadow 0.28s var(--ease), border-color 0.28s var(--ease), background-color 0.28s var(--ease);
}

.site-header[data-scrolled] .header-shell {
  box-shadow: 4px 4px 0 var(--ink);
  border-color: var(--ink);
  background: var(--field-900);
}

/* 导航 */
.site-nav {
  flex: 1 1 auto;
  display: flex;
  justify-content: center;
  min-width: 0;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 2px;
}

.nav-item { flex: 0 0 auto; }

.nav-link {
  display: block;
  padding: 9px 14px;
  border-radius: var(--radius-pill);
  border: 2px solid transparent;
  font-size: 14px;
  font-weight: 600;
  color: var(--gray-300);
  white-space: nowrap;
  transition: color 0.18s var(--ease), background-color 0.18s var(--ease), border-color 0.18s var(--ease);
}

.nav-link:hover {
  color: var(--chalk);
  background: var(--field-700);
}

.nav-link[aria-current="page"] {
  background: var(--orange-500);
  border-color: var(--ink);
  color: var(--ink);
  font-weight: 800;
}

/* 页头右侧 */
.header-aside {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-left: auto;
  flex: 0 0 auto;
}

.round-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 13px;
  border: 2px solid var(--field-700);
  border-radius: var(--radius-pill);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  color: var(--yellow-400);
  white-space: nowrap;
}

.round-badge::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  flex: 0 0 auto;
  background: var(--orange-500);
  box-shadow: 0 0 0 3px rgba(255, 107, 26, 0.2);
}

.nav-toggle {
  display: none;
  align-items: center;
  gap: 9px;
  padding: 9px 14px;
  border: 2px solid var(--ink);
  border-radius: var(--radius-pill);
  background: var(--field-700);
  color: var(--chalk);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
}

.nav-toggle-bars {
  display: grid;
  gap: 4px;
  width: 16px;
  flex: 0 0 auto;
}

.nav-toggle-bars span {
  display: block;
  height: 2px;
  background: var(--chalk);
  transition: transform 0.18s var(--ease);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bars span:first-child { transform: translateY(3px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle-bars span:last-child { transform: translateY(-3px) rotate(-45deg); }

/* 阅读进度条 */
.scroll-meter {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: rgba(29, 58, 44, 0.7);
  z-index: 120;
  pointer-events: none;
}

.scroll-meter-fill {
  display: block;
  height: 100%;
  width: 0;
  background: var(--yellow-400);
  transition: width 0.08s linear;
}

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 22px;
  border: 2px solid var(--ink);
  border-radius: var(--radius-pill);
  background: var(--chalk);
  color: var(--ink);
  font-size: 14px;
  font-weight: 800;
  letter-spacing: 0.02em;
  white-space: nowrap;
  box-shadow: 3px 3px 0 var(--ink);
  transition: transform 0.18s var(--ease), box-shadow 0.18s var(--ease), background-color 0.18s var(--ease), color 0.18s var(--ease), border-color 0.18s var(--ease);
}

.btn:hover { transform: translate(-2px, -2px); box-shadow: 5px 5px 0 var(--ink); }
.btn:active { transform: translate(1px, 1px); box-shadow: 1px 1px 0 var(--ink); }

.btn-primary { background: var(--orange-500); color: var(--ink); }
.btn-primary:hover { background: var(--yellow-400); }

.btn-ghost { background: transparent; color: var(--chalk); border-color: var(--chalk); box-shadow: 3px 3px 0 var(--ink); }
.btn-ghost:hover { background: var(--chalk); color: var(--ink); }

.btn-sm { padding: 9px 16px; font-size: 13px; }

/* ---------- 面包屑 ---------- */
.crumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--gray-600);
}

.crumbs li { display: flex; align-items: center; gap: 10px; }
.crumbs li + li::before { content: "/"; color: var(--field-700); }
.crumbs a { color: var(--gray-300); transition: color 0.18s var(--ease); }
.crumbs a:hover { color: var(--yellow-400); }
.crumbs [aria-current="page"] { color: var(--chalk); }

/* ---------- 正文容器 ---------- */
.prose { max-width: 72ch; }
.prose h2 { margin-bottom: 0.7em; margin-top: 1.8em; }
.prose h3 { margin-bottom: 0.6em; margin-top: 1.5em; }
.prose p { margin-bottom: 1.35em; }
.prose ul {
  list-style: none;
  margin: 0 0 1.5em;
  padding: 0;
}
.prose ul li {
  position: relative;
  padding-left: 22px;
  margin-bottom: 0.6em;
  color: var(--gray-300);
}
.prose ul li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.68em;
  width: 10px;
  height: 2px;
  background: var(--yellow-400);
}
.prose strong { color: var(--chalk); font-weight: 700; }

.lede {
  font-size: clamp(1.05rem, 1.6vw, 1.25rem);
  color: var(--gray-300);
  line-height: 1.75;
}

/* ---------- 卡片与色块 ---------- */
.panel {
  background: var(--field-800);
  border: 2px solid var(--ink);
  border-radius: var(--radius-cut);
  padding: clamp(20px, 2.4vw, 30px);
  box-shadow: var(--shadow-hard);
}

.panel--flat { box-shadow: none; }
.panel--accent { background: var(--field-700); }

.chip {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 5px 12px;
  border: 2px solid var(--field-700);
  border-radius: var(--radius-pill);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--gray-300);
}

.chip--hot {
  background: var(--orange-500);
  border-color: var(--ink);
  color: var(--ink);
  font-weight: 700;
}

/* ---------- 标签 / 筛选 ---------- */
.tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  border: 2px solid var(--field-700);
  border-radius: var(--radius-pill);
  background: transparent;
  color: var(--gray-300);
  font-size: 13px;
  font-weight: 600;
  transition: color 0.18s var(--ease), background-color 0.18s var(--ease), border-color 0.18s var(--ease);
}

.tag:hover { color: var(--chalk); border-color: var(--chalk); }

.tag[aria-pressed="true"],
.tag.is-active {
  background: var(--yellow-200);
  border-color: var(--yellow-400);
  color: var(--ink);
}

.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
}

.filter-count {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--gray-600);
}

/* ---------- 可展开内容组 ---------- */
.accordion {
  border: 2px solid var(--ink);
  border-radius: var(--radius-cut);
  overflow: hidden;
  background: var(--field-800);
  box-shadow: var(--shadow-hard);
}

.accordion-item + .accordion-item { border-top: 2px solid var(--ink); }

.accordion-trigger {
  display: flex;
  align-items: center;
  gap: 14px;
  width: 100%;
  padding: 18px 22px;
  text-align: left;
  font-size: 16px;
  font-weight: 700;
  color: var(--chalk);
  transition: background-color 0.18s var(--ease), color 0.18s var(--ease);
}

.accordion-trigger:hover { background: var(--field-700); }
.accordion-trigger[aria-expanded="true"] { background: var(--field-700); color: var(--yellow-400); }

.accordion-index {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--yellow-400);
  flex: 0 0 auto;
}

.accordion-trigger[aria-expanded="true"] .accordion-index { color: var(--orange-500); }

.accordion-panel {
  padding: 0 22px 22px 58px;
  color: var(--gray-300);
  font-size: 15px;
}

/* ---------- 数据表 ---------- */
.data-table { font-size: 15px; }

.data-table caption {
  text-align: left;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--gray-600);
  padding-bottom: 10px;
}

.data-table th {
  padding: 12px 14px;
  text-align: left;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--gray-600);
  background: var(--field-700);
  border-bottom: 2px solid var(--ink);
}

.data-table td {
  padding: 12px 14px;
  color: var(--gray-300);
  border-bottom: 1px solid var(--field-700);
}

.data-table tbody tr:hover td { background: var(--field-800); color: var(--chalk); }

.data-table .num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-weight: 700;
  color: var(--yellow-400);
  text-align: right;
}

/* ---------- 介质容器（页面阶段放置图片占位） ---------- */
.frame {
  position: relative;
  display: block;
  overflow: hidden;
  background: var(--field-800);
  border: 2px solid var(--ink);
  border-radius: var(--radius-cut);
  box-shadow: var(--shadow-hard);
}

.frame > img,
.frame > svg,
.frame > video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.frame--wide { aspect-ratio: 16 / 9; }
.frame--tall { aspect-ratio: 3 / 4; }
.frame--square { aspect-ratio: 1 / 1; }
.frame--board { aspect-ratio: 4 / 3; }

.frame--board::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: 0.55;
  background-image:
    linear-gradient(var(--field-700) 1px, transparent 1px),
    linear-gradient(90deg, var(--field-700) 1px, transparent 1px);
  background-size: 34px 34px;
}

.frame-caption {
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.5;
  color: var(--gray-300);
  padding: 10px 14px;
  background: var(--field-700);
  border-top: 2px solid var(--ink);
}

/* ---------- 显现 ---------- */
html[data-reveal-ready] [data-reveal] {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 0.28s var(--ease), transform 0.28s var(--ease);
}

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

/* ---------- 页脚 ---------- */
.site-footer {
  margin-top: var(--section-gap);
  background: var(--field-800);
  border-top: 3px solid var(--ink);
}

.footer-shell {
  display: grid;
  grid-template-columns: minmax(0, 1.9fr) minmax(0, 0.9fr) minmax(0, 0.9fr) minmax(0, 1.2fr) minmax(0, 1.3fr);
  gap: 40px 32px;
  padding-block: 68px 52px;
}

.footer-brand { display: flex; flex-direction: column; align-items: flex-start; gap: 18px; }
.brand--footer { align-items: flex-start; }

.footer-lede {
  margin: 0;
  max-width: 34ch;
  font-size: 14px;
  line-height: 1.75;
  color: var(--gray-600);
}

.footer-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 14px;
  border: 2px dashed var(--field-700);
  border-radius: var(--radius-pill);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--yellow-400);
}

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

.footer-col-title {
  margin: 0 0 18px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--field-700);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--chalk);
}

.footer-links li + li { margin-top: 9px; }

.footer-links a {
  position: relative;
  display: inline-block;
  padding-left: 16px;
  font-size: 15px;
  color: var(--gray-300);
  transition: color 0.18s var(--ease), padding-left 0.18s var(--ease);
}

.footer-links a::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 6px;
  height: 2px;
  background: var(--yellow-400);
  transition: width 0.18s var(--ease), background-color 0.18s var(--ease);
}

.footer-links a:hover { color: var(--chalk); padding-left: 20px; }
.footer-links a:hover::before { width: 11px; background: var(--orange-500); }

.footer-text {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--gray-600);
}

.contact-list li {
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr);
  gap: 10px;
  padding: 8px 0;
  border-bottom: 1px dashed var(--field-700);
  font-size: 14px;
}

.contact-key {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--gray-600);
  padding-top: 3px;
}

.contact-val { color: var(--chalk); word-break: break-word; }

.footer-note {
  margin: 16px 0 0;
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1.7;
  color: var(--gray-600);
}

.footer-base {
  background: var(--field-900);
  border-top: 2px solid var(--field-700);
}

.footer-base-shell {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px 26px;
  padding-block: 20px;
}

.footer-mono {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.03em;
  color: var(--gray-600);
}

.footer-icp { color: var(--gray-300); }

/* ---------- 响应式 ---------- */
@media (max-width: 1180px) {
  .round-badge { display: none; }
}

@media (max-width: 1080px) {
  .brand-tagline { display: none; }
}

@media (max-width: 1000px) {
  .nav-toggle { display: inline-flex; }

  .site-nav {
    position: absolute;
    top: calc(100% + 10px);
    left: 0;
    right: 0;
    flex: 0 0 auto;
    display: block;
    padding: 10px;
    background: var(--field-800);
    border: 2px solid var(--ink);
    border-radius: 20px;
    box-shadow: var(--shadow-hard);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: opacity 0.2s var(--ease), transform 0.2s var(--ease), visibility 0.2s var(--ease);
  }

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

  .nav-list { flex-direction: column; align-items: stretch; gap: 2px; }

  .nav-link {
    padding: 13px 16px;
    border-radius: 12px;
    font-size: 15px;
  }

  .header-shell { padding: 9px 10px; }
  .site-header { padding-block: 10px 8px; }
  .footer-shell { grid-template-columns: repeat(2, minmax(0, 1fr)); padding-block: 52px 40px; }
  .footer-brand { grid-column: 1 / -1; }
}

@media (max-width: 700px) {
  .header-cta { display: none; }
  .header-shell { gap: 10px; }
  .footer-shell { grid-template-columns: minmax(0, 1fr); gap: 32px; }
  .footer-base-shell { justify-content: flex-start; flex-direction: column; align-items: flex-start; }
  .accordion-panel { padding-left: 22px; }
  .contact-list li { grid-template-columns: minmax(0, 1fr); gap: 2px; }
}

@media (max-width: 420px) {
  .brand-name { font-size: 15px; }
  .nav-toggle-text { display: none; }
}

/* ---------- 动效降级 ---------- */
@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;
    scroll-behavior: auto !important;
  }

  .btn:hover,
  .btn:active { transform: none; }
}