/* ============================================ */
/* 亿兆体育 · 全站共享样式 /assets/site.css     */
/* 深墨蓝体育数据终端 · 共用头部页脚与基础组件  */
/* ============================================ */

/* ---------- Reset 与设计变量 ---------- */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --bg-main: #0A1F33;
  --bg-deep: #061524;
  --bg-panel: #0F2A47;
  --bg-paper: #F5EFE0;
  --border-color: #1E3A5F;
  --border-light: #2A4A73;
  --accent-orange: #FFB800;
  --accent-blue: #00D4FF;
  --success: #28C76F;
  --danger: #EF4444;
  --text-main: #E6EDF3;
  --text-sub: #7A8B9A;
  --text-on-dark: #0A1F33;

  --font-head: "Oswald", Impact, "Arial Narrow Bold", "Helvetica Neue", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-body: "Roboto", system-ui, -apple-system, "Segoe UI", "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
  --font-mono: "Roboto Mono", ui-monospace, "SF Mono", "Cascadia Mono", Menlo, Consolas, monospace;

  --text-h1: clamp(2.5rem, 4vw + 1rem, 4rem);
  --text-h2: clamp(1.75rem, 2vw + 0.75rem, 2.5rem);
  --text-h3: clamp(1.375rem, 1vw + 0.5rem, 1.75rem);
  --text-body: 1rem;
  --text-small: 0.75rem;

  --header-h: 72px;
  --content-max: 1280px;
  --radius: 6px;
  --speed: 0.25s;
}

/* ---------- 基础排版与页面底色 ---------- */
html {
  color-scheme: dark;
  scroll-behavior: smooth;
  scrollbar-color: var(--border-color) var(--bg-deep);
  scrollbar-width: thin;
  -webkit-text-size-adjust: 100%;
}

body {
  min-height: 100vh;
  padding-top: var(--header-h);
  font-family: var(--font-body);
  font-size: var(--text-body);
  line-height: 1.6;
  color: var(--text-main);
  background-color: var(--bg-main);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background: repeating-linear-gradient(
    -45deg,
    transparent 0,
    transparent 28px,
    rgba(0, 212, 255, 0.02) 28px,
    rgba(0, 212, 255, 0.02) 29px
  );
  animation: stripe-slide 90s linear infinite;
}

@keyframes stripe-slide {
  to {
    background-position: 96px 0;
  }
}

h1,
h2,
h3,
h4 {
  font-family: var(--font-head);
  font-weight: 700;
  line-height: 1.12;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

h1 {
  font-size: var(--text-h1);
}

h2 {
  font-size: var(--text-h2);
}

h3 {
  font-size: var(--text-h3);
}

h4 {
  font-size: 1.125rem;
}

p {
  margin-bottom: 1rem;
}

a {
  color: var(--accent-blue);
  text-decoration: none;
  transition: color var(--speed) ease, background-color var(--speed) ease,
    border-color var(--speed) ease;
}

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

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

button {
  font-family: inherit;
  font-size: inherit;
  color: inherit;
  background: none;
  border: 0;
  cursor: pointer;
}

ul,
ol {
  list-style: none;
}

::selection {
  background: var(--accent-orange);
  color: var(--text-on-dark);
}

:focus-visible {
  outline: 2px solid var(--accent-orange);
  outline-offset: 2px;
}

::-webkit-scrollbar {
  width: 10px;
}

::-webkit-scrollbar-track {
  background: var(--bg-deep);
}

::-webkit-scrollbar-thumb {
  background: var(--border-color);
  border-radius: 8px;
  border: 2px solid var(--bg-deep);
}

/* ---------- 跳转与滚动进度 ---------- */
.skip-link {
  position: fixed;
  top: -56px;
  left: 16px;
  z-index: 2000;
  padding: 10px 18px;
  font-weight: 700;
  font-size: 14px;
  color: var(--text-on-dark);
  background: var(--accent-orange);
  border-radius: 0 0 var(--radius) var(--radius);
  transition: top var(--speed) ease;
}

.skip-link:focus {
  top: 0;
}

.site-progress {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: rgba(30, 58, 95, 0.6);
  overflow: hidden;
}

.site-progress span {
  display: block;
  width: 0;
  height: 100%;
  background: linear-gradient(90deg, var(--accent-blue), var(--accent-orange));
}

/* ---------- 头部框架式导航 ---------- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1700;
  background: linear-gradient(180deg, rgba(10, 31, 51, 0.97), rgba(10, 31, 51, 0.9));
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border-color);
  transition: background-color var(--speed) ease, box-shadow var(--speed) ease;
}

.site-header.is-scrolled {
  background: linear-gradient(180deg, rgba(6, 21, 36, 0.98), rgba(6, 21, 36, 0.94));
  box-shadow: 0 10px 32px rgba(0, 0, 0, 0.35);
}

.header-inner {
  max-width: var(--content-max);
  height: var(--header-h);
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  gap: 20px;
  transition: height var(--speed) ease;
}

.site-header.is-scrolled .header-inner {
  height: 56px;
}

/* 品牌标识 */
.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  font-family: var(--font-head);
  font-size: 22px;
  font-weight: 700;
  color: var(--text-on-dark);
  background: linear-gradient(135deg, var(--accent-orange), #e89100);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 8px), calc(100% - 8px) 100%, 0 100%);
}

.brand-text {
  font-family: var(--font-head);
  font-size: 24px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--text-main);
  white-space: nowrap;
}

.brand-text strong {
  color: var(--accent-orange);
  font-weight: inherit;
}

/* 主导航 */
.main-nav {
  margin-right: auto;
}

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

.nav-link {
  position: relative;
  display: block;
  padding: 10px 14px;
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--text-main);
}

.nav-link::after {
  content: "";
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: 5px;
  height: 2px;
  background: var(--accent-orange);
  transform: skewX(-30deg);
  transform-origin: left;
  opacity: 0;
  transition: opacity var(--speed) ease;
}

.nav-link:hover,
.nav-link[aria-current="page"] {
  color: var(--accent-orange);
}

.nav-link:hover::after,
.nav-link[aria-current="page"]::after {
  opacity: 1;
}

.nav-drawer-foot {
  display: none;
}

/* 头部右侧操作区 */
.header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-left: auto;
}

.header-search {
  position: relative;
  display: flex;
  align-items: center;
}

.header-search-icon {
  position: absolute;
  left: 11px;
  font-size: 16px;
  line-height: 1;
  color: var(--text-sub);
  pointer-events: none;
}

.header-search-input {
  width: 150px;
  padding: 8px 12px 8px 32px;
  font-family: var(--font-body);
  font-size: 13px;
  color: var(--text-main);
  background: var(--bg-deep);
  border: 1px solid var(--border-color);
  border-radius: 999px;
  transition: width var(--speed) ease, border-color var(--speed) ease, background-color var(--speed) ease;
}

.header-search-input::placeholder {
  color: var(--text-sub);
}

.header-search-input:focus {
  width: 190px;
  border-color: var(--accent-blue);
  outline: none;
}

.header-search-input:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* 移动端汉堡按钮 */
.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 5px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  transition: border-color var(--speed) ease;
}

.nav-toggle:hover {
  border-color: var(--accent-orange);
}

.nav-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--text-main);
  transition: transform var(--speed) ease, opacity var(--speed) ease;
}

.nav-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* 移动端抽屉遮罩 */
.nav-backdrop {
  position: fixed;
  inset: 0;
  z-index: 1600;
  display: none;
  background: rgba(4, 10, 18, 0.55);
  -webkit-backdrop-filter: blur(2px);
  backdrop-filter: blur(2px);
}

.nav-backdrop.is-visible {
  display: block;
}

/* ---------- 移动端头部适配 ---------- */
@media (max-width: 1024px) {
  :root {
    --header-h: 64px;
  }

  .header-inner {
    padding: 0 16px;
    gap: 10px;
  }

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

  .main-nav {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    z-index: 1650;
    width: min(340px, 86vw);
    margin: 0;
    padding: calc(var(--header-h) + 28px) 28px 32px;
    background: rgba(15, 42, 71, 0.92);
    -webkit-backdrop-filter: blur(16px);
    backdrop-filter: blur(16px);
    border-left: 1px solid var(--border-color);
    box-shadow: -16px 0 48px rgba(0, 0, 0, 0.4);
    transform: translateX(100%);
    transition: transform 0.3s ease;
    overflow-y: auto;
  }

  .main-nav[data-open="true"] {
    transform: translateX(0);
  }

  .nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
  }

  .nav-link {
    padding: 14px 16px;
    font-size: 18px;
    border-bottom: 1px solid var(--border-color);
  }

  .nav-link::after {
    left: 16px;
    right: auto;
    width: 28px;
    bottom: 9px;
  }

  .nav-drawer-foot {
    display: block;
    margin-top: 32px;
    padding-top: 16px;
    font-size: 12px;
    letter-spacing: 0.06em;
    color: var(--text-sub);
    border-top: 1px solid var(--border-color);
  }

  .header-search-input {
    width: 120px;
  }

  .header-search-input:focus {
    width: 160px;
  }
}

@media (max-width: 560px) {
  .brand-mark {
    width: 34px;
    height: 34px;
    font-size: 18px;
  }

  .brand-text {
    font-size: 19px;
  }

  .header-search {
    order: -1;
  }

  .header-search-input {
    width: 30px;
    padding: 8px 0 8px 28px;
    background: transparent;
    border-color: transparent;
  }

  .header-search-input:focus,
  .header-search-input:not(:placeholder-shown) {
    width: 132px;
    background: var(--bg-deep);
    border-color: var(--border-color);
  }
}

/* ---------- 页脚 ---------- */
.site-footer {
  position: relative;
  background: linear-gradient(180deg, var(--bg-main), var(--bg-deep));
  border-top: 1px solid var(--border-color);
}

.site-footer::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg,
      var(--accent-orange) 0%,
      var(--accent-orange) 20%,
      var(--accent-blue) 100%);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.4fr;
  gap: 40px;
  padding-top: 56px;
  padding-bottom: 48px;
}

.footer-brand-name {
  font-family: var(--font-head);
  font-size: 28px;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--text-main);
  line-height: 1.2;
}

.footer-brand-name::after {
  content: "";
  display: inline-block;
  width: 28px;
  height: 3px;
  margin-left: 12px;
  vertical-align: middle;
  background: var(--accent-orange);
  transform: skewX(-30deg);
}

.footer-tagline {
  margin-top: 8px;
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.08em;
  color: var(--accent-blue);
}

.footer-trust {
  max-width: 360px;
  margin-top: 16px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--text-sub);
}

.footer-title {
  margin-bottom: 16px;
  font-family: var(--font-head);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent-orange);
}

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

.footer-links a {
  font-size: 14px;
  color: var(--text-main);
}

.footer-links a:hover {
  color: var(--accent-orange);
}

.footer-meta {
  font-size: 14px;
  line-height: 1.9;
  color: var(--text-main);
}

.footer-note {
  margin-top: 8px;
  font-size: 12px;
  color: var(--text-sub);
}

.footer-bottom {
  border-top: 1px solid var(--border-color);
  padding: 18px 0;
}

.footer-bottom-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px 24px;
  font-size: 13px;
  color: var(--text-sub);
}

.footer-copy,
.footer-icp {
  margin: 0;
}

@media (max-width: 1024px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
    padding-top: 44px;
    padding-bottom: 40px;
  }
}

@media (max-width: 640px) {
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 28px;
    padding-top: 36px;
    padding-bottom: 32px;
  }

  .footer-bottom-inner {
    flex-direction: column;
    text-align: center;
  }
}

/* ---------- 内容容器 ---------- */
.container {
  width: 100%;
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 0 24px;
}

@media (max-width: 640px) {
  .container {
    padding: 0 16px;
  }
}

/* ---------- 章节标题体系 ---------- */
.section {
  padding: 56px 0;
}

.section-head {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 32px;
}

.kicker {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-head);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent-blue);
}

.kicker::before {
  content: "";
  width: 28px;
  height: 3px;
  background: var(--accent-orange);
  transform: skewX(-30deg);
}

.section-title {
  max-width: 720px;
}

.section-desc {
  max-width: 720px;
  color: var(--text-sub);
}

.coord-num {
  font-family: var(--font-mono);
  font-size: clamp(3rem, 6vw, 4.5rem);
  font-weight: 600;
  line-height: 0.9;
  color: transparent;
  -webkit-text-stroke: 1.5px rgba(0, 212, 255, 0.55);
  opacity: 0.75;
}

.slash-line {
  width: 56px;
  height: 4px;
  background: linear-gradient(90deg, var(--accent-orange), var(--accent-blue));
  transform: skewX(-30deg);
}

/* ---------- 子页面首屏 ---------- */
.page-hero {
  position: relative;
  padding: 64px 0 48px;
  overflow: hidden;
  border-bottom: 1px solid var(--border-color);
}

.page-hero::after {
  content: "";
  position: absolute;
  top: -40px;
  right: -60px;
  width: 360px;
  height: 360px;
  background: radial-gradient(circle, rgba(0, 212, 255, 0.12), transparent 65%);
  pointer-events: none;
}

.page-hero-title {
  position: relative;
  max-width: 800px;
}

.page-hero-desc {
  position: relative;
  max-width: 620px;
  margin-top: 16px;
  font-size: 17px;
  color: var(--text-sub);
}

/* ---------- 面包屑 ---------- */
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-bottom: 24px;
  font-size: 13px;
  color: var(--text-sub);
}

.breadcrumb a {
  color: var(--text-sub);
}

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

.breadcrumb .sep {
  color: var(--border-light);
}

/* ---------- 按钮体系 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 26px;
  font-family: var(--font-head);
  font-size: 15px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-main);
  border: 1px solid transparent;
  border-radius: var(--radius);
  transition: transform var(--speed) ease, box-shadow var(--speed) ease,
    background-color var(--speed) ease, color var(--speed) ease,
    border-color var(--speed) ease;
}

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

.btn-primary {
  color: var(--text-on-dark);
  background: var(--accent-orange);
}

.btn-primary:hover {
  box-shadow: 0 10px 28px rgba(255, 184, 0, 0.28);
  color: var(--text-on-dark);
}

.btn-outline {
  border-color: var(--accent-blue);
  color: var(--accent-blue);
}

.btn-outline:hover {
  background: rgba(0, 212, 255, 0.1);
  color: var(--accent-blue);
}

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

.btn-ghost:hover {
  border-color: var(--accent-orange);
  color: var(--accent-orange);
}

/* ---------- 信息卡片 ---------- */
.card {
  position: relative;
  padding: 24px;
  background: var(--bg-panel);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  transition: transform var(--speed) ease, border-color var(--speed) ease,
    box-shadow var(--speed) ease;
}

.card::before {
  content: "";
  position: absolute;
  top: -1px;
  left: -1px;
  width: 48px;
  height: 3px;
  background: linear-gradient(90deg, var(--accent-orange), var(--accent-blue));
  transform: skewX(-30deg);
  transform-origin: left top;
}

.card:hover {
  transform: translateY(-4px);
  border-color: var(--border-light);
  box-shadow: 0 14px 36px rgba(0, 0, 0, 0.3);
}

.card-title {
  margin-bottom: 8px;
}

.card-desc {
  font-size: 14px;
  color: var(--text-sub);
}

.card-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 16px;
}

/* ---------- 状态角标 ---------- */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--text-sub);
  background: var(--bg-panel);
  border: 1px solid var(--border-color);
  border-radius: 999px;
}

.badge[data-badge="live"] {
  color: var(--success);
  background: rgba(40, 199, 111, 0.1);
  border-color: rgba(40, 199, 111, 0.4);
}

.badge[data-badge="hot"] {
  color: var(--accent-orange);
  background: rgba(255, 184, 0, 0.08);
  border-color: rgba(255, 184, 0, 0.4);
}

/* ---------- 响应式栅格 ---------- */
.grid {
  display: grid;
  gap: 24px;
}

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

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

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

@media (max-width: 1024px) {
  .grid-cols-3,
  .grid-cols-4 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 640px) {
  .grid-cols-2,
  .grid-cols-3,
  .grid-cols-4 {
    grid-template-columns: 1fr;
  }
}

/* ---------- 数据表格 ---------- */
.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}

.data-table th {
  padding: 12px 16px;
  font-family: var(--font-head);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  text-align: left;
  color: var(--text-sub);
  border-bottom: 2px solid var(--border-color);
}

.data-table td {
  padding: 14px 16px;
  border-bottom: 1px solid var(--border-color);
}

.data-table tbody tr:hover {
  background: rgba(0, 212, 255, 0.05);
}

.data-table .num,
.num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
}

/* ---------- 筛选协议 ---------- */
.filter-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 18px;
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 600;
  color: var(--text-main);
  background: var(--bg-panel);
  border: 1px solid var(--border-color);
  border-radius: 999px;
  transition: background-color var(--speed) ease, color var(--speed) ease,
    border-color var(--speed) ease;
}

.filter-btn:hover {
  color: var(--accent-orange);
  border-color: var(--accent-orange);
}

.filter-btn[aria-pressed="true"] {
  color: var(--text-on-dark);
  background: var(--accent-orange);
  border-color: var(--accent-orange);
}

.is-filter-hidden {
  display: none !important;
}

.filter-empty {
  padding: 24px;
  font-size: 14px;
  text-align: center;
  color: var(--text-sub);
  border: 1px dashed var(--border-color);
  border-radius: var(--radius);
}

.filter-empty[hidden] {
  display: none;
}

/* ---------- 图片容器占位 ---------- */
.media-frame {
  position: relative;
  display: block;
  overflow: hidden;
  background: var(--bg-deep);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
}

.media-frame::before {
  content: "";
  display: block;
  padding-top: 56.25%;
}

.media-frame > * {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.media-frame[data-ratio="4:3"]::before {
  padding-top: 75%;
}

.media-frame[data-ratio="1:1"]::before {
  padding-top: 100%;
}

.media-frame[data-ratio="3:4"]::before {
  padding-top: 133.34%;
}

.media-frame[data-clip="slash"] {
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 18px), calc(100% - 18px) 100%, 0 100%);
}

/* ---------- 滚动显现协议 ---------- */
.js [data-reveal] {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.55s ease, transform 0.55s ease;
}

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

/* ---------- 减少动态 ---------- */
@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;
  }

  body::before {
    animation: none;
  }

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