/* ============================================
   bet365赛场 · 全站共享样式
   设计母题：竞技数据档案库
   深绿×金 · 锐利直角 · 细线网格
   ============================================ */

/* ---------- 变量 ---------- */
:root {
  color-scheme: dark;
  accent-color: #FFD700;

  --primary: #1B5E20;
  --primary-dark: #124016;
  --primary-light: #2E7D32;
  --accent: #FFD700;
  --accent-dark: #CFA10A;
  --bg-dark: #0A0F0D;
  --bg-soft: #121A16;
  --text-main: #F2F5F3;
  --text-muted: #A8B4AE;
  --line: #2C3E35;

  --font-heading: "Playfair Display", Baskerville, "Songti SC", "STSong", SimSun, Georgia, serif;
  --font-body: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;

  --content-max: 80rem;
  --header-sidebar-w: 16.5rem;

  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 2rem;
  --space-lg: 3rem;
  --space-xl: 5rem;

  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
}

/* ---------- 重置与基础 ---------- */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  background: var(--bg-dark);
  -webkit-text-size-adjust: 100%;
  text-rendering: optimizeLegibility;
  scroll-behavior: smooth;
}

html,
body {
  overflow-x: hidden;
}

body {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.6;
  background: var(--bg-dark);
  color: var(--text-main);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

main {
  display: block;
  min-height: 60vh;
}

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

ul,
ol {
  list-style: none;
}

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

button {
  font: inherit;
  color: inherit;
  background: none;
  border: none;
  cursor: pointer;
}

h1,
h2,
h3,
h4 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: 0.01em;
  color: var(--text-main);
  text-wrap: balance;
}

h1 { font-size: clamp(2rem, 5vw, 3.25rem); }
h2 { font-size: clamp(1.5rem, 3.5vw, 2.375rem); }
h3 { font-size: clamp(1.125rem, 2.5vw, 1.5rem); }

p {
  color: var(--text-muted);
  line-height: 1.7;
  max-width: 65ch;
}

p + p {
  margin-top: 0.75rem;
}

::selection {
  background: var(--primary);
  color: var(--text-main);
}

[id] {
  scroll-margin-top: 5rem;
}

#main-content {
  scroll-margin-top: 0;
}

/* ---------- 布局 ---------- */
.container {
  width: 100%;
  max-width: var(--content-max);
  margin-inline: auto;
  padding-inline: 1.25rem;
}

.section {
  padding: var(--space-lg) 0;
}

.section--tight {
  padding: var(--space-md) 0;
}

.section--bleed {
  padding: var(--space-xl) 0;
}

.section__header {
  margin-bottom: var(--space-md);
  max-width: 70ch;
}

.section__tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  color: var(--accent);
  padding: 0.375rem 0.75rem;
  border: 1px solid var(--primary-light);
  background: rgba(27, 94, 32, 0.22);
  clip-path: polygon(0 0, calc(100% - 10px) 0, 100% 100%, 0 100%);
  margin-bottom: 0.75rem;
}

.section__title {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  margin-bottom: 0.75rem;
}

.section__lead {
  font-size: 1rem;
  color: var(--text-muted);
  max-width: 62ch;
}

.grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1.5rem;
}

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background 0.3s ease, color 0.3s ease, border-color 0.3s ease, transform 0.3s ease;
  clip-path: polygon(0 0, calc(100% - 10px) 0, 100% 10px, 100% 100%, 0 100%);
}

.btn--accent {
  background: var(--accent);
  color: var(--bg-dark);
}

.btn--accent:hover {
  background: var(--accent-dark);
  transform: translateY(-2px);
}

.btn--primary {
  background: var(--primary);
  color: var(--text-main);
  border-color: var(--primary-light);
}

.btn--primary:hover {
  background: var(--primary-light);
  transform: translateY(-2px);
}

.btn--ghost {
  background: transparent;
  color: var(--text-main);
  border-color: var(--line);
}

.btn--ghost:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-2px);
}

/* ---------- 卡片与标签 ---------- */
.card {
  background: var(--bg-soft);
  border: 1px solid var(--line);
  padding: 1.5rem;
  position: relative;
  transition: border-color 0.3s ease, transform 0.3s ease, background 0.3s ease;
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 0.25rem;
  height: 100%;
  background: var(--primary-light);
  transform: scaleY(0);
  transform-origin: bottom;
  transition: transform 0.4s var(--ease-out);
}

.card:hover {
  border-color: var(--primary-light);
  transform: translateY(-4px);
  background: rgba(18, 26, 22, 0.92);
}

.card:hover::before {
  transform: scaleY(1);
}

.card__title {
  font-size: 1.125rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.card__text {
  font-size: 0.875rem;
  color: var(--text-muted);
  margin-bottom: 1rem;
}

.card__meta {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.75rem;
  color: var(--text-muted);
  letter-spacing: 0.05em;
}

.card__meta::before {
  content: '';
  flex: 0 0 auto;
  width: 1rem;
  height: 2px;
  background: var(--accent);
}

.tag {
  display: inline-block;
  font-size: 0.6875rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  padding: 0.25rem 0.625rem;
  border: 1px solid var(--line);
  transition: color 0.3s ease, border-color 0.3s ease, background 0.3s ease;
}

.tag:hover,
.tag[aria-current="true"] {
  color: var(--accent);
  border-color: var(--accent);
  background: rgba(255, 215, 0, 0.06);
}

.stat {
  background: linear-gradient(160deg, var(--bg-soft) 0%, #0E1712 100%);
  border: 1px solid var(--line);
  padding: 1.75rem;
  position: relative;
  overflow: hidden;
}

.stat::after {
  content: '';
  position: absolute;
  right: 0;
  bottom: 0;
  width: 0;
  height: 0;
  border-left: 2.5rem solid transparent;
  border-bottom: 2.5rem solid rgba(27, 94, 32, 0.4);
}

.stat__value {
  display: block;
  font-family: var(--font-heading);
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 700;
  line-height: 1;
  color: var(--accent);
  margin-bottom: 0.5rem;
}

.stat__label {
  font-size: 0.8125rem;
  color: var(--text-muted);
  letter-spacing: 0.08em;
}

/* ---------- 图片容器 ---------- */
.img-frame {
  position: relative;
  overflow: hidden;
  background: linear-gradient(135deg, var(--bg-soft), var(--primary-dark));
  border: 1px solid var(--line);
  aspect-ratio: 16 / 9;
}

.img-frame--square {
  aspect-ratio: 1 / 1;
}

.img-frame--portrait {
  aspect-ratio: 3 / 4;
}

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

/* ---------- 面包屑 ---------- */
.breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.625rem;
  font-size: 0.8125rem;
  color: var(--text-muted);
  margin-bottom: 1.5rem;
}

.breadcrumbs a {
  color: var(--text-muted);
  transition: color 0.3s ease;
}

.breadcrumbs a:hover {
  color: var(--accent);
}

.breadcrumbs__sep {
  width: 0.4375rem;
  height: 0.4375rem;
  border-top: 1px solid var(--line);
  border-right: 1px solid var(--line);
  transform: rotate(45deg);
  flex: 0 0 auto;
}

/* ---------- 页面首屏 ---------- */
.page-hero {
  padding: 4rem 0;
  border-bottom: 1px solid var(--line);
  position: relative;
}

.page-hero::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 2px;
  background: linear-gradient(90deg, var(--accent) 0%, var(--primary) 45%, transparent 85%);
}

.page-hero__title {
  font-size: clamp(2rem, 6vw, 3.5rem);
  line-height: 1.1;
  margin-bottom: 1rem;
}

.page-hero__lead {
  font-size: 1.125rem;
  color: var(--text-muted);
  max-width: 60ch;
  line-height: 1.7;
}

.page-hero__meta {
  margin-top: 1.5rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

/* ---------- 页头 ---------- */
.site-skip {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 2000;
  background: var(--accent);
  color: var(--bg-dark);
  font-weight: 700;
  font-size: 0.875rem;
  padding: 0.75rem 1.5rem;
  transform: translateY(-120%);
  transition: transform 0.2s ease;
}

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

.site-header {
  background: var(--bg-soft);
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  z-index: 1000;
}

.site-header__inner {
  max-width: var(--content-max);
  margin: 0 auto;
  min-height: 4rem;
  padding: 0.75rem 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.site-brand {
  display: inline-flex;
  align-items: center;
  gap: 0.875rem;
  min-width: 0;
  flex: 1 1 auto;
}

.site-brand__mark {
  flex: 0 0 auto;
  position: relative;
  width: 2.5rem;
  height: 2.5rem;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  clip-path: polygon(0 0, calc(100% - 0.75rem) 0, 100% 0.75rem, 100% 100%, 0 100%);
}

.site-brand__mark::before {
  content: '';
  position: absolute;
  top: 0.75rem;
  left: 0.5rem;
  width: 0.375rem;
  height: 1rem;
  background: var(--accent);
  transform: skewX(-10deg);
  box-shadow: 0.625rem 0.125rem 0 var(--accent-dark);
}

.site-brand__text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
  min-width: 0;
  overflow: hidden;
}

.site-brand__name {
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  white-space: nowrap;
}

.site-brand__tagline {
  font-size: 0.6875rem;
  color: var(--accent);
  letter-spacing: 0.12em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.site-nav-toggle {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  height: 2.5rem;
  padding: 0 0.875rem;
  border: 1px solid var(--line);
  background: rgba(18, 26, 22, 0.85);
  color: var(--text-main);
  font-size: 0.8125rem;
  letter-spacing: 0.08em;
  cursor: pointer;
  z-index: 1101;
  transition: border-color 0.3s ease, color 0.3s ease;
}

.site-nav-toggle:hover {
  border-color: var(--primary-light);
  color: var(--accent);
}

.site-nav-toggle__icon {
  position: relative;
  display: inline-block;
  width: 1.25rem;
  height: 0.875rem;
}

.site-nav-toggle__icon::before,
.site-nav-toggle__icon::after {
  content: '';
  position: absolute;
  left: 0;
  width: 100%;
  height: 2px;
  background: currentColor;
  transition: transform 0.3s ease, top 0.3s ease, bottom 0.3s ease, box-shadow 0.3s ease;
}

.site-nav-toggle__icon::before {
  top: 0.0625rem;
  box-shadow: 0 0.3125rem 0 currentColor;
}

.site-nav-toggle__icon::after {
  bottom: 0.0625rem;
}

.site-nav-toggle[aria-expanded="true"] .site-nav-toggle__icon::before {
  top: 50%;
  box-shadow: none;
  transform: rotate(45deg) translateY(-50%);
}

.site-nav-toggle[aria-expanded="true"] .site-nav-toggle__icon::after {
  top: 50%;
  bottom: auto;
  transform: rotate(-45deg) translateY(-50%);
}

.site-nav-toggle__close {
  display: none;
}

.site-nav-toggle[aria-expanded="true"] .site-nav-toggle__open {
  display: none;
}

.site-nav-toggle[aria-expanded="true"] .site-nav-toggle__close {
  display: inline;
}

.site-nav {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: min(22rem, 88vw);
  background: var(--bg-soft);
  border-left: 1px solid var(--line);
  padding: 5.5rem 1.75rem 2rem;
  transform: translateX(102%);
  visibility: hidden;
  transition: transform 0.45s var(--ease-out), visibility 0s 0.45s;
  z-index: 1100;
  overflow-y: auto;
}

.site-nav[data-open] {
  transform: translateX(0);
  visibility: visible;
  transition: transform 0.45s var(--ease-out), visibility 0s;
}

.site-nav::before {
  content: '';
  position: fixed;
  inset: 0;
  z-index: -1;
  background: rgba(10, 15, 13, 0.72);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0s 0.3s;
}

.site-nav[data-open]::before {
  opacity: 1;
  visibility: visible;
  transition: opacity 0.3s ease, visibility 0s;
}

.site-nav__list {
  counter-reset: navIndex;
  display: flex;
  flex-direction: column;
}

.site-nav__item {
  counter-increment: navIndex;
}

.site-nav__item + .site-nav__item {
  border-top: 1px solid var(--line);
}

.site-nav__link {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 1rem 0;
  font-size: 1rem;
  color: var(--text-muted);
  transition: color 0.3s ease, padding-left 0.3s ease;
}

.site-nav__link::before {
  content: '';
  flex: 0 0 auto;
  width: 0.375rem;
  height: 0.375rem;
  background: var(--line);
  transform: rotate(45deg);
  transition: background 0.3s ease;
}

.site-nav__link::after {
  content: counter(navIndex, decimal-leading-zero);
  margin-left: auto;
  font-size: 0.6875rem;
  font-variant-numeric: tabular-nums;
  color: var(--text-muted);
  letter-spacing: 0.08em;
  transition: color 0.3s ease;
}

.site-nav__link:hover {
  color: var(--text-main);
  padding-left: 0.5rem;
}

.site-nav__link:hover::before {
  background: var(--accent);
}

.site-nav__link:hover::after {
  color: var(--accent);
}

.site-nav__link[aria-current="page"] {
  color: var(--accent);
  font-weight: 600;
}

.site-nav__link[aria-current="page"]::before {
  background: var(--accent);
}

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

.site-header__note {
  display: none;
  margin-top: 2rem;
  padding-top: 1rem;
  border-top: 1px solid var(--line);
  font-size: 0.6875rem;
  color: var(--text-muted);
  line-height: 1.6;
  letter-spacing: 0.06em;
}

/* ---------- 页脚 ---------- */
.site-footer {
  margin-top: var(--space-xl);
  background: var(--bg-soft);
  border-top: 1px solid var(--line);
  position: relative;
}

.site-footer::before {
  content: '';
  position: absolute;
  top: -2px;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent) 0rem, var(--accent) 6rem, var(--primary-light) 14rem, transparent 26rem);
}

.site-footer__inner {
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 3rem 1.25rem 0;
}

.site-footer__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 2rem;
  padding-bottom: 2.5rem;
}

.site-footer__col {
  min-width: 0;
}

.site-footer__brand {
  display: inline-flex;
  align-items: center;
  gap: 0.625rem;
  margin-bottom: 0.875rem;
}

.site-footer__mark {
  flex: 0 0 auto;
  width: 1.5rem;
  height: 1.5rem;
  background: var(--primary);
  clip-path: polygon(0 0, calc(100% - 6px) 0, 100% 6px, 100% 100%, 0 100%);
}

.site-footer__brandtext {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-main);
}

.site-footer__trust {
  font-size: 0.875rem;
  color: var(--text-muted);
  max-width: 30ch;
}

.site-footer__title {
  font-family: var(--font-heading);
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 0.1em;
  margin-bottom: 0.875rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--line);
}

.site-footer__list {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.site-footer__list li {
  font-size: 0.875rem;
  color: var(--text-muted);
  line-height: 1.5;
}

.site-footer__list a {
  position: relative;
  display: inline-block;
  padding-left: 0.875rem;
  color: var(--text-muted);
  transition: color 0.3s ease;
}

.site-footer__list a::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 0.375rem;
  height: 0.375rem;
  border-top: 1px solid var(--accent);
  border-right: 1px solid var(--accent);
  transform: rotate(45deg);
}

.site-footer__list a:hover {
  color: var(--accent);
}

.site-footer__copy {
  font: inherit;
  font-size: 0.875rem;
  color: var(--text-muted);
  line-height: 1.5;
  text-align: left;
  background: none;
  border: none;
  border-bottom: 1px dashed var(--line);
  padding: 0;
  cursor: pointer;
  transition: color 0.3s ease, border-color 0.3s ease;
}

.site-footer__copy:hover {
  color: var(--accent);
  border-color: var(--accent);
}

.site-footer__meta {
  border-top: 1px solid var(--line);
  padding: 1.25rem 0;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem 1.5rem;
  font-size: 0.75rem;
  color: var(--text-muted);
}

.site-footer__meta-links {
  display: flex;
  flex-wrap: wrap;
  gap: 1.25rem;
}

.site-footer__meta-links a {
  color: var(--text-muted);
  transition: color 0.3s ease;
}

.site-footer__meta-links a:hover {
  color: var(--accent);
}

.site-footer__meta-info {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.5rem;
  margin-left: auto;
}

/* ---------- 滚动辅助 ---------- */
.scroll-progress {
  position: fixed;
  top: 0;
  right: 0;
  width: 3px;
  height: 100vh;
  z-index: 1500;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.scroll-progress[data-active="true"] {
  opacity: 1;
}

.scroll-progress__bar {
  display: block;
  width: 100%;
  height: 0%;
  background: linear-gradient(180deg, var(--accent) 0%, var(--accent-dark) 100%);
}

.to-top {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  z-index: 1400;
  width: 2.75rem;
  height: 2.75rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--primary);
  color: var(--accent);
  border: 1px solid var(--line);
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(0.75rem);
  transition: opacity 0.3s ease, visibility 0s 0.3s, transform 0.3s ease, background 0.3s ease, border-color 0.3s ease;
}

.to-top::before {
  content: '';
  width: 0.625rem;
  height: 0.625rem;
  border-top: 2px solid currentColor;
  border-right: 2px solid currentColor;
  transform: rotate(-45deg);
  margin-bottom: 0.25rem;
}

.to-top:hover {
  background: var(--primary-light);
  border-color: var(--accent);
}

.to-top[data-visible="true"] {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
  transition: opacity 0.3s ease, visibility 0s, transform 0.3s ease;
}

/* ---------- 显现动画 ---------- */
html.js [data-reveal] {
  opacity: 0;
  transform: translateY(1.5rem);
  transition: opacity 0.65s var(--ease-out), transform 0.65s var(--ease-out);
}

html.js [data-reveal][data-revealed="true"] {
  opacity: 1;
  transform: translateY(0);
}

/* ---------- 响应式 ---------- */
@media (min-width: 48em) {
  .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));
  }

  .site-footer__grid {
    grid-template-columns: 2fr 1fr 1.5fr;
    gap: 3rem;
  }
}

@media (min-width: 64em) {
  body {
    padding-left: var(--header-sidebar-w);
  }

  .site-header {
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    width: var(--header-sidebar-w);
    border-bottom: none;
    border-right: 1px solid var(--line);
    overflow-y: auto;
  }

  .site-header__inner {
    max-width: none;
    min-height: 100%;
    height: 100%;
    flex-direction: column;
    align-items: stretch;
    justify-content: flex-start;
    padding: 2.25rem 1.75rem 1.5rem;
  }

  .site-brand {
    flex: 0 0 auto;
    margin-bottom: 2.5rem;
  }

  .site-nav-toggle {
    display: none;
  }

  .site-nav {
    position: static;
    width: auto;
    transform: none;
    visibility: visible;
    padding: 0;
    border-left: none;
    background: transparent;
    overflow-y: visible;
    flex: 1;
    transition: none;
  }

  .site-nav::before {
    display: none;
  }

  .site-nav__item + .site-nav__item {
    border-top: none;
  }

  .site-nav__link {
    padding: 0.75rem 0;
    font-size: 0.875rem;
    border-bottom: 1px solid var(--line);
  }

  .site-header__note {
    display: block;
  }
}

@media (max-width: 26.99em) {
  .site-brand__tagline {
    display: none;
  }

  .site-nav-toggle {
    padding: 0 0.5rem;
  }
}

/* ---------- 焦点可见 ---------- */
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.btn:focus-visible,
.site-nav-toggle:focus-visible,
.site-footer__copy:focus-visible,
.to-top:focus-visible {
  outline-offset: 0;
  border-color: var(--accent);
}

/* ---------- 减弱动效 ---------- */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  html.js [data-reveal] {
    opacity: 1;
    transform: none;
    transition: none;
  }
}