/* ==========================================================
   Site Kit — 安博体育（anbosports-play.com.cn）
   /assets/site.css — 全站共享样式
   ========================================================== */

/* ---------- 变量 ---------- */
:root {
  --c-deep: #0A1F44;
  --c-orange: #FF6B00;
  --c-teal: #00D4AA;
  --c-paper: #F5F3EF;
  --c-ink: #111827;
  --c-sky: #BFDBFE;
  --c-green: #047857;
  --c-warm: #FFD9B3;
  --c-purple: #312E81;

  --font-head: 'Anton', Impact, 'Arial Black', sans-serif;
  --font-body: 'Open Sans', -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;

  --container: 1280px;
  --radius-pill: 999px;
  --radius-md: 14px;
  --radius-sm: 8px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

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

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

body {
  margin: 0;
  min-height: 100vh;
  overflow-x: hidden;
  background: var(--c-deep);
  color: var(--c-paper);
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.75;
  font-variant-numeric: tabular-nums;
}

h1, h2, h3, h4, h5, h6 {
  margin: 0 0 1rem;
  font-family: var(--font-head);
  font-weight: 900;
  line-height: 1.15;
  letter-spacing: 0.03em;
  color: inherit;
}

p {
  margin: 0 0 1rem;
}

a {
  color: var(--c-teal);
  text-decoration: none;
  -webkit-tap-highlight-color: transparent;
}

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

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

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

button {
  font: inherit;
  color: inherit;
  cursor: pointer;
}

::selection {
  background: var(--c-orange);
  color: var(--c-deep);
}

/* ---------- 工具类 ---------- */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

.container {
  width: min(100% - 2rem, var(--container));
  margin-inline: auto;
}

.content-shell {
  background: var(--c-paper);
  color: var(--c-ink);
  border-radius: var(--radius-md);
  padding: clamp(1.5rem, 4vw, 3.25rem);
  border: 1px solid rgba(10, 31, 68, 0.08);
  box-shadow: 0 16px 48px rgba(2, 8, 23, 0.28);
}

.site-main {
  display: block;
  min-height: 72vh;
  outline: none;
}

/* ---------- 跳过链接 ---------- */
.skip-link {
  position: fixed;
  top: -100px;
  left: 1rem;
  z-index: 2000;
  display: inline-flex;
  align-items: center;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-pill);
  background: var(--c-orange);
  color: var(--c-deep);
  font-weight: 800;
  font-size: 0.9375rem;
  box-shadow: 0 8px 24px rgba(255, 107, 0, 0.4);
  transition: top 0.25s var(--ease);
}

.skip-link:focus {
  top: 1rem;
}

/* ---------- 顶部悬浮胶囊导航 ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  padding: 0.75rem 1rem;
}

.nav-island {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  max-width: var(--container);
  margin-inline: auto;
  padding: 0.625rem 0.625rem 0.625rem 1.5rem;
  background: rgba(10, 31, 68, 0.88);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  border: 1px solid rgba(245, 243, 239, 0.1);
  border-radius: var(--radius-pill);
  box-shadow: 0 12px 40px rgba(2, 8, 23, 0.45);
}

.brand-mark {
  display: inline-flex;
  align-items: center;
  gap: 0.625rem;
  font-family: var(--font-head);
  font-size: 1.375rem;
  font-weight: 900;
  letter-spacing: 0.02em;
  line-height: 1;
  color: var(--c-paper);
  white-space: nowrap;
}

.brand-mark:hover {
  color: var(--c-paper);
}

.brand-mark__text {
  line-height: 1;
}

.brand-mark__accent {
  color: var(--c-orange);
}

.brand-mark__dot {
  width: 9px;
  height: 9px;
  margin-left: 0.125rem;
}

.brand-mark--footer {
  font-size: 1.75rem;
}

.status-dot {
  display: inline-block;
  flex: 0 0 auto;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--c-teal);
}

.status-dot--live {
  background: var(--c-orange);
  box-shadow: 0 0 0 0 rgba(255, 107, 0, 0.45);
}

@media (prefers-reduced-motion: no-preference) {
  .status-dot--live {
    animation: dotGlow 2.4s ease-in-out infinite;
  }
}

@keyframes dotGlow {
  0% { box-shadow: 0 0 0 0 rgba(255, 107, 0, 0.5); }
  70%, 100% { box-shadow: 0 0 0 9px rgba(255, 107, 0, 0); }
}

.site-nav__list {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.site-nav__item {
  display: block;
  margin: 0;
}

.site-nav__link {
  position: relative;
  display: block;
  padding: 0.625rem 1rem;
  border-radius: var(--radius-pill);
  color: rgba(245, 243, 239, 0.82);
  font-size: 0.9375rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  transition: background-color 0.2s var(--ease), color 0.2s var(--ease);
}

.site-nav__link::after {
  content: "";
  position: absolute;
  left: 1.25rem;
  right: 1.25rem;
  bottom: 0.2rem;
  height: 2px;
  border-radius: 2px;
  background: var(--c-teal);
  transform: scaleX(0);
  transform-origin: 0 50%;
  transition: transform 0.25s var(--ease);
}

.site-nav__link:hover {
  color: var(--c-paper);
  background: rgba(245, 243, 239, 0.07);
}

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

.site-nav__link[aria-current="page"] {
  color: var(--c-teal);
  background: rgba(0, 212, 170, 0.12);
}

.site-nav__link:focus-visible {
  outline: 2px solid var(--c-teal);
  outline-offset: 2px;
}

.site-nav__link--cta,
.site-nav__link--cta:hover,
.site-nav__link--cta[aria-current="page"] {
  background: var(--c-orange);
  color: var(--c-deep);
  box-shadow: 0 4px 16px rgba(255, 107, 0, 0.35);
}

.site-nav__link--cta::after {
  display: none;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 1px solid rgba(245, 243, 239, 0.18);
  border-radius: 50%;
  background: rgba(245, 243, 239, 0.06);
  transition: background-color 0.2s var(--ease);
}

.nav-toggle:hover {
  background: rgba(245, 243, 239, 0.12);
}

.nav-toggle__bar {
  display: block;
  width: 18px;
  height: 2px;
  margin: 2px 0;
  border-radius: 1px;
  background: var(--c-paper);
  transition: transform 0.25s var(--ease), opacity 0.2s var(--ease);
}

.nav-toggle[data-open="true"] .nav-toggle__bar:nth-child(1) {
  transform: translateY(4px) rotate(45deg);
}

.nav-toggle[data-open="true"] .nav-toggle__bar:nth-child(2) {
  opacity: 0;
}

.nav-toggle[data-open="true"] .nav-toggle__bar:nth-child(3) {
  transform: translateY(-4px) rotate(-45deg);
}

/* ---------- 滚动进度条 ---------- */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  z-index: 2000;
  background: linear-gradient(90deg, var(--c-orange), var(--c-teal));
  transform: scaleX(0);
  transform-origin: 0 50%;
  pointer-events: none;
  will-change: transform;
}

/* ---------- 平板导航收缩 ---------- */
@media (min-width: 901px) and (max-width: 1180px) {
  .nav-island {
    padding-left: 1.25rem;
  }

  .site-nav__link {
    padding: 0.5rem 0.75rem;
    font-size: 0.875rem;
  }
}

/* ---------- 移动端导航 ---------- */
@media (max-width: 900px) {
  .site-header {
    padding: 0.5rem 0.75rem;
  }

  .nav-island {
    padding: 0.5rem 0.5rem 0.5rem 1.25rem;
    border-radius: 28px;
  }

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

  .site-nav {
    position: absolute;
    top: calc(100% + 10px);
    left: 0;
    right: 0;
    max-height: 0;
    overflow: hidden;
    padding: 0;
    background: rgba(8, 22, 51, 0.98);
    border: 1px solid rgba(245, 243, 239, 0.1);
    border-radius: 24px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: max-height 0.4s var(--ease), opacity 0.3s var(--ease), transform 0.3s var(--ease), visibility 0s linear 0.4s;
  }

  .site-nav[data-open="true"] {
    max-height: 440px;
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
    transition: max-height 0.45s var(--ease), opacity 0.3s var(--ease), transform 0.3s var(--ease), visibility 0s;
  }

  .site-nav__list {
    flex-direction: column;
    align-items: stretch;
    gap: 0.25rem;
    padding: 0.75rem;
  }

  .site-nav__link {
    padding: 0.8125rem 1.25rem;
    font-size: 1rem;
    text-align: center;
    border-radius: 16px;
  }

  .site-nav__link::after {
    display: none;
  }

  .site-nav__link[aria-current="page"] {
    background: rgba(0, 212, 170, 0.14);
    color: var(--c-teal);
  }

  .site-nav__link--cta {
    margin-top: 0.25rem;
  }
}

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  min-height: 44px;
  padding: 0.625rem 1.75rem;
  border: 2px solid transparent;
  border-radius: var(--radius-pill);
  background: transparent;
  font-family: var(--font-head);
  font-size: 0.9375rem;
  font-weight: 900;
  letter-spacing: 0.06em;
  line-height: 1;
  text-transform: uppercase;
  color: inherit;
  text-decoration: none;
  cursor: pointer;
  transition: transform 0.2s var(--ease), box-shadow 0.2s var(--ease), background-color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.btn:hover {
  transform: translateY(-2px);
  text-decoration: none;
}

.btn--primary {
  background: var(--c-orange);
  border-color: var(--c-orange);
  color: var(--c-deep);
}

.btn--primary:hover {
  box-shadow: 0 8px 24px rgba(255, 107, 0, 0.4);
}

.btn--outline {
  border-color: var(--c-teal);
  color: var(--c-teal);
}

.btn--outline:hover {
  background: rgba(0, 212, 170, 0.1);
  box-shadow: 0 8px 24px rgba(0, 212, 170, 0.2);
}

/* ---------- 面包屑 ---------- */
.breadcrumbs__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.875rem;
  color: rgba(245, 243, 239, 0.6);
}

.breadcrumbs__item {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.breadcrumbs__item + .breadcrumbs__item::before {
  content: "/";
  font-family: var(--font-head);
  color: rgba(245, 243, 239, 0.3);
}

.breadcrumbs__link {
  color: rgba(245, 243, 239, 0.78);
  transition: color 0.2s var(--ease);
}

.breadcrumbs__link:hover {
  color: var(--c-orange);
}

.breadcrumbs__item[aria-current="page"] .breadcrumbs__link,
.breadcrumbs__link[aria-current="page"] {
  color: var(--c-orange);
  font-weight: 700;
}

/* ---------- 标签与数据组件 ---------- */
.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.375rem 1rem;
  border: 1px solid rgba(0, 212, 170, 0.4);
  border-radius: var(--radius-pill);
  background: rgba(10, 31, 68, 0.35);
  color: var(--c-teal);
  font-size: 0.8125rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.data-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.375rem 0.875rem;
  border-radius: 6px;
  background: var(--c-sky);
  color: var(--c-deep);
  font-family: var(--font-head);
  font-size: 0.875rem;
  font-weight: 900;
  line-height: 1.2;
  letter-spacing: 0.04em;
}

.data-chip--orange {
  background: var(--c-warm);
}

.data-chip--green {
  background: var(--c-teal);
}

/* ---------- 网格 ---------- */
.grid {
  display: grid;
  gap: clamp(1rem, 2.5vw, 1.75rem);
}

.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));
}

.grid--feature {
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  align-items: center;
  gap: clamp(1.5rem, 4vw, 3rem);
}

@media (max-width: 920px) {
  .grid--3, .grid--4 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .grid--feature {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 600px) {
  .grid--2, .grid--3, .grid--4 {
    grid-template-columns: 1fr;
  }
}

/* ---------- 卡片 ---------- */
.card {
  position: relative;
  padding: clamp(1.25rem, 3vw, 2rem);
  background: var(--c-paper);
  color: var(--c-ink);
  border: 1px solid rgba(10, 31, 68, 0.08);
  border-radius: var(--radius-md);
  box-shadow: 0 2px 10px rgba(2, 8, 23, 0.1);
  transition: transform 0.25s var(--ease), box-shadow 0.25s var(--ease);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 14px 36px rgba(2, 8, 23, 0.18);
}

.card__title {
  margin-bottom: 0.75rem;
  font-family: var(--font-head);
  font-size: 1.125rem;
  font-weight: 900;
  letter-spacing: 0.03em;
}

/* ---------- 速度线与数据滚动条 ---------- */
.speed-line {
  display: block;
  height: 2px;
  border: 0;
  background: linear-gradient(90deg, transparent, var(--c-orange), transparent);
  opacity: 0.55;
}

.data-ticker {
  overflow: hidden;
  padding-block: 0.75rem;
  border-block: 1px solid rgba(245, 243, 239, 0.1);
  background: rgba(10, 31, 68, 0.55);
}

.data-ticker__track {
  display: flex;
  width: max-content;
  gap: clamp(2rem, 4vw, 3.5rem);
}

@media (prefers-reduced-motion: no-preference) {
  .data-ticker__track {
    animation: tickerSlide 28s linear infinite;
  }
}

.data-ticker__item {
  white-space: nowrap;
  color: rgba(245, 243, 239, 0.78);
  font-family: var(--font-head);
  font-size: 0.9375rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.data-ticker__item strong {
  color: var(--c-orange);
  font-weight: 900;
}

@keyframes tickerSlide {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

/* ---------- 图片容器 ---------- */
.media-frame {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  aspect-ratio: 16 / 10;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, var(--c-purple), var(--c-deep) 70%);
}

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

.media-frame::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(115deg, transparent 32%, rgba(255, 107, 0, 0.14) 44%, rgba(0, 212, 170, 0.16) 52%, transparent 64%);
  pointer-events: none;
}

.media-frame__placeholder {
  color: rgba(245, 243, 239, 0.4);
  font-family: var(--font-head);
  font-size: 0.8125rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
}

/* ---------- 滚动显现 ---------- */
[data-reveal].reveal-ready {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
  transition-delay: var(--reveal-delay, 0s);
}

[data-reveal].reveal-ready.in-view {
  opacity: 1;
  transform: translateY(0);
}

/* ---------- 页脚 ---------- */
.arena-footer {
  position: relative;
  margin-top: clamp(3rem, 8vw, 6rem);
  overflow: hidden;
  background: linear-gradient(180deg, rgba(10, 31, 68, 0.95), #071633 80%);
  color: rgba(245, 243, 239, 0.84);
  padding-top: clamp(2.5rem, 6vw, 4rem);
}

.arena-footer::before {
  content: "";
  position: absolute;
  top: 16px;
  left: 16px;
  right: 16px;
  bottom: 72px;
  border: 1px solid rgba(245, 243, 239, 0.07);
  border-radius: 4px;
  pointer-events: none;
}

.arena-footer::after {
  content: "";
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(
    -45deg,
    transparent 0 30px,
    rgba(245, 243, 239, 0.018) 30px 32px
  );
  pointer-events: none;
}

.speed-line--footer {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  opacity: 0.65;
  background: linear-gradient(90deg, transparent 5%, var(--c-orange) 30%, var(--c-teal) 55%, transparent 95%);
}

.arena-footer__grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.35fr 0.85fr 1fr 1.15fr;
  gap: clamp(1.5rem, 4vw, 3rem);
  align-items: start;
  padding-bottom: 1.5rem;
}

.footer-brandblock {
  max-width: 46ch;
}

.footer-brandblock .brand-mark {
  margin-bottom: 0.875rem;
}

.footer-slogan {
  margin: 0.5rem 0 0.625rem;
  color: var(--c-paper);
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.footer-trust {
  margin: 0;
  color: rgba(245, 243, 239, 0.58);
  font-size: 0.84375rem;
  line-height: 1.75;
}

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

.footer-column__title {
  margin-bottom: 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid rgba(245, 243, 239, 0.1);
  color: var(--c-teal);
  font-family: var(--font-head);
  font-size: 0.84375rem;
  font-weight: 900;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.footer-column__list {
  display: grid;
  gap: 0.5625rem;
}

.footer-column__list a {
  display: inline-block;
  color: rgba(245, 243, 239, 0.74);
  font-size: 0.9375rem;
  line-height: 1.5;
  transition: color 0.2s var(--ease), padding-left 0.2s var(--ease);
}

.footer-column__list a:hover {
  padding-left: 4px;
  color: var(--c-orange);
}

.footer-contact__item {
  color: rgba(245, 243, 239, 0.68);
  font-size: 0.875rem;
  line-height: 1.7;
  word-break: break-word;
}

.arena-footer__bottom {
  position: relative;
  z-index: 1;
  margin-top: 2rem;
  padding-block: 1.25rem 1.375rem;
  border-top: 1px solid rgba(245, 243, 239, 0.08);
  background: rgba(2, 8, 23, 0.32);
}

.arena-footer__bottom-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.375rem 2rem;
  color: rgba(245, 243, 239, 0.55);
  font-size: 0.8125rem;
}

.arena-footer__bottom-inner p {
  margin: 0;
}

@media (max-width: 980px) {
  .arena-footer__grid {
    grid-template-columns: 1fr 1fr;
  }

  .footer-brandblock {
    grid-column: 1 / -1;
    max-width: 60ch;
  }
}

@media (max-width: 560px) {
  .arena-footer__grid {
    grid-template-columns: 1fr;
  }

  .arena-footer__bottom-inner {
    justify-content: center;
    text-align: center;
  }
}

/* ---------- 键盘焦点 ---------- */
:focus-visible {
  outline: 3px solid var(--c-orange);
  outline-offset: 3px;
}

/* ---------- 减少动效 ---------- */
@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;
    transition-delay: 0ms !important;
  }

  .data-ticker__track {
    animation: none;
    overflow-x: auto;
  }
}