/* ================================================================
   非凡体育竞界 — 全站共享样式系统
   文件路径：/assets/site.css
   风格原型：竞技数据地图 / 速度·数据·赛程
   ================================================================ */

/* ---------- 1. CSS 变量 ---------- */
:root {
  --color-bg: #0A0B0F;
  --color-surface: #141821;
  --color-surface-2: #1A2029;
  --color-accent: #CFFF04;
  --color-accent-blue: #00E5FF;
  --color-navy: #0B1E33;
  --color-text: #C0C8D4;
  --color-text-light: #FFFFFF;
  --color-text-muted: #8A93A3;
  --color-warning: #FF5C00;

  --font-headline: "Impact", "Arial Black", "Noto Sans SC", "Microsoft YaHei", sans-serif;
  --font-body: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-data: "Consolas", "Courier New", monospace;

  --skew-angle: -3deg;
  --skew-angle-inverse: 3deg;

  --space-1: 4px;
  --space-2: 8px;
  --space-3: 16px;
  --space-4: 24px;
  --space-5: 40px;
  --space-6: 64px;
  --space-7: 96px;

  --container-width: 1240px;
  --container-padding: 24px;
  --header-top-height: 38px;
  --header-main-min-height: 78px;

  --border-color: rgba(255, 255, 255, 0.10);
  --border-color-strong: rgba(255, 255, 255, 0.18);

  --transition-fast: 0.18s ease;
  --transition-normal: 0.32s ease;

  --radius: 0;

  --font-size-base: 16px;
  --line-height-base: 1.8;
}

/* ---------- 2. Reset ---------- */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
  font-family: var(--font-body);
  font-size: var(--font-size-base);
  line-height: var(--line-height-base);
  color: var(--color-text);
  background-color: var(--color-bg);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

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

ul,
ol {
  list-style: none;
}

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

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

::selection {
  background: var(--color-accent);
  color: var(--color-bg);
}

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

/* ---------- 3. 容器 ---------- */
.container {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding-left: var(--container-padding);
  padding-right: var(--container-padding);
}

/* ---------- 4. Skip Link ---------- */
.skip-link {
  position: absolute;
  top: -120px;
  left: 16px;
  z-index: 10000;
  display: inline-flex;
  align-items: center;
  background: var(--color-accent);
  color: var(--color-bg);
  font-family: var(--font-headline);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.06em;
  padding: 10px 24px;
  transform: skewX(var(--skew-angle));
  transition: top var(--transition-normal);
}

.skip-link::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--color-accent);
  z-index: -1;
}

.skip-link:focus-visible {
  top: 8px;
}

/* ---------- 5. 滚动进度条 ---------- */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  width: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-accent) 0%, var(--color-accent-blue) 100%);
  z-index: 9999;
  pointer-events: none;
}

/* ---------- 6. 头部 ---------- */
.site-header {
  position: relative;
  background: var(--color-bg);
  border-bottom: 1px solid var(--border-color);
}

.site-header__top {
  height: var(--header-top-height);
  display: flex;
  align-items: center;
  background: var(--color-bg);
  border-bottom: 1px solid var(--border-color);
}

.site-header__top-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.site-header__tagline {
  font-family: var(--font-data);
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  white-space: nowrap;
}

.site-header__live {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-data);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text);
  white-space: nowrap;
}

.status-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-accent);
  animation: status-pulse 2s ease-in-out infinite;
}

@keyframes status-pulse {
  0%, 100% {
    opacity: 1;
    box-shadow: 0 0 0 0 rgba(207, 255, 4, 0.40);
  }
  50% {
    opacity: 0.72;
    box-shadow: 0 0 0 6px rgba(207, 255, 4, 0);
  }
}

.site-header__main {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(10, 11, 15, 0.94);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-color);
}

.site-header__main-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px 24px;
  min-height: var(--header-main-min-height);
  padding-top: 12px;
  padding-bottom: 12px;
}

/* Logo */
.site-header__logo {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.site-header__logo-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 46px;
  height: 46px;
  background: var(--color-accent);
  color: var(--color-bg);
  font-family: var(--font-headline);
  font-size: 20px;
  font-weight: 900;
  letter-spacing: -0.02em;
  transform: skewX(var(--skew-angle));
  transition: background-color var(--transition-fast), color var(--transition-fast), box-shadow var(--transition-fast);
}

.site-header__logo:hover .site-header__logo-mark {
  background: var(--color-bg);
  color: var(--color-accent);
  box-shadow: inset 0 0 0 2px var(--color-accent);
}

.site-header__logo-text {
  font-family: var(--font-headline);
  font-size: 26px;
  font-weight: 900;
  color: var(--color-text-light);
  letter-spacing: 0.04em;
  line-height: 1;
  transform: skewX(var(--skew-angle));
  white-space: nowrap;
}

/* 导航 */
.site-header__nav {
  margin-left: auto;
}

.site-header__nav-list {
  display: flex;
  align-items: center;
  gap: 4px 28px;
}

.site-header__nav-link {
  position: relative;
  display: inline-block;
  font-size: 15px;
  font-weight: 500;
  color: var(--color-text);
  padding: 8px 2px;
  line-height: 1.4;
  transition: color var(--transition-fast);
}

.site-header__nav-link::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 2px;
  background: var(--color-accent);
  transform: skewX(var(--skew-angle)) scaleX(0);
  transform-origin: left center;
  transition: transform var(--transition-normal), background-color var(--transition-fast);
}

.site-header__nav-link:hover {
  color: var(--color-accent);
}

.site-header__nav-link:hover::after,
.site-header__nav-link[aria-current="page"]::after {
  transform: skewX(var(--skew-angle)) scaleX(1);
}

.site-header__nav-link[aria-current="page"] {
  color: var(--color-accent);
  font-weight: 700;
}

/* CTA 按钮 */
.site-header__cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  background: var(--color-accent);
  color: var(--color-bg);
  font-family: var(--font-headline);
  font-size: 14px;
  font-weight: 900;
  letter-spacing: 0.08em;
  padding: 12px 28px;
  transform: skewX(var(--skew-angle));
  transition: background-color var(--transition-fast), color var(--transition-fast), box-shadow var(--transition-fast);
  white-space: nowrap;
}

.site-header__cta-text {
  display: inline-block;
  transform: skewX(var(--skew-angle-inverse));
}

.site-header__cta:hover {
  background: var(--color-bg);
  color: var(--color-accent);
  box-shadow: inset 0 0 0 2px var(--color-accent);
}

/* 移动导航开关 */
.nav-toggle {
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  width: 46px;
  height: 46px;
  border: 1px solid var(--border-color-strong);
  background: transparent;
  transition: border-color var(--transition-fast), background-color var(--transition-fast);
}

.nav-toggle:hover {
  border-color: var(--color-accent);
  background: rgba(207, 255, 4, 0.06);
}

.nav-toggle__bar {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--color-text);
  transition: transform var(--transition-fast), opacity var(--transition-fast), background-color var(--transition-fast);
}

.nav-toggle:hover .nav-toggle__bar {
  background: var(--color-accent);
}

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

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

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

/* ---------- 7. 页脚 ---------- */
.site-footer {
  position: relative;
  background: var(--color-surface);
  border-top: 4px solid var(--color-accent);
  margin-top: var(--space-7);
}

.site-footer__skew {
  position: absolute;
  top: -4px;
  left: 0;
  width: 140px;
  height: 4px;
  background: var(--color-accent-blue);
  z-index: 1;
}

.site-footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-5);
  padding: var(--space-6) 0;
}

.site-footer__brand {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.site-footer__logo {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  margin-bottom: var(--space-3);
}

.site-footer__logo-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  background: var(--color-accent);
  color: var(--color-bg);
  font-family: var(--font-headline);
  font-size: 18px;
  font-weight: 900;
  transform: skewX(var(--skew-angle));
  transition: background-color var(--transition-fast), color var(--transition-fast);
}

.site-footer__logo:hover .site-footer__logo-mark {
  background: var(--color-bg);
  color: var(--color-accent);
}

.site-footer__logo-text {
  font-family: var(--font-headline);
  font-size: 22px;
  font-weight: 900;
  color: var(--color-text-light);
  letter-spacing: 0.04em;
  transform: skewX(var(--skew-angle));
  white-space: nowrap;
}

.site-footer__trust {
  font-size: 14px;
  line-height: 1.9;
  color: var(--color-text-muted);
  max-width: 360px;
}

.site-footer__block {
  display: flex;
  flex-direction: column;
}

.site-footer__heading {
  font-family: var(--font-headline);
  font-size: 16px;
  font-weight: 700;
  color: var(--color-text-light);
  letter-spacing: 0.08em;
  margin-bottom: var(--space-3);
  padding-left: 14px;
  position: relative;
}

.site-footer__heading::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 3px;
  height: 16px;
  background: var(--color-accent);
}

.site-footer__contact-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.site-footer__contact-list li {
  font-size: 13px;
  line-height: 1.7;
  color: var(--color-text-muted);
  padding: 4px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}

.site-footer__contact-list li:last-child {
  border-bottom: none;
}

.site-footer__link-list {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.site-footer__link-list li {
  padding: 4px 0;
}

.site-footer__link-list a {
  font-size: 14px;
  color: var(--color-text-muted);
  transition: color var(--transition-fast), padding-left var(--transition-fast);
  display: inline-block;
}

.site-footer__link-list a:hover {
  color: var(--color-accent);
  padding-left: 6px;
}

.site-footer__bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: var(--space-3) 0;
  border-top: 1px solid var(--border-color);
  font-size: 13px;
  color: var(--color-text-muted);
}

.site-footer__copyright {
  font-family: var(--font-data);
  letter-spacing: 0.04em;
}

.site-footer__icp {
  font-family: var(--font-data);
  letter-spacing: 0.06em;
}

/* ---------- 8. 通用按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: var(--color-accent);
  color: var(--color-bg);
  font-family: var(--font-headline);
  font-size: 14px;
  font-weight: 900;
  letter-spacing: 0.06em;
  padding: 14px 30px;
  transform: skewX(var(--skew-angle));
  transition: background-color var(--transition-fast), color var(--transition-fast), box-shadow var(--transition-fast);
  cursor: pointer;
  border: none;
  white-space: nowrap;
}

.btn > * {
  display: inline-block;
  transform: skewX(var(--skew-angle-inverse));
}

.btn:hover {
  background: var(--color-bg);
  color: var(--color-accent);
  box-shadow: inset 0 0 0 2px var(--color-accent);
}

.btn--ghost {
  background: transparent;
  color: var(--color-accent-blue);
  box-shadow: inset 0 0 0 1px var(--color-accent-blue);
}

.btn--ghost:hover {
  background: var(--color-accent-blue);
  color: var(--color-bg);
  box-shadow: inset 0 0 0 2px var(--color-accent-blue);
}

.btn__label {
  transform: skewX(var(--skew-angle-inverse));
}

/* ---------- 9. 面包屑 ---------- */
.breadcrumb {
  font-size: 13px;
  color: var(--color-text-muted);
  padding: var(--space-3) 0;
  border-bottom: 1px solid var(--border-color);
  margin-bottom: var(--space-5);
}

.breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 4px;
}

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

.breadcrumb__item:not(:last-child)::after {
  content: '/';
  margin: 0 8px;
  color: var(--color-text-muted);
  font-family: var(--font-data);
  font-size: 12px;
}

.breadcrumb__item:last-child {
  color: var(--color-text-light);
  font-weight: 500;
}

.breadcrumb__link {
  color: var(--color-text-muted);
  transition: color var(--transition-fast);
}

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

/* ---------- 10. 正文容器 ---------- */
.content-container {
  max-width: 760px;
  margin: 0 auto;
  padding: var(--space-5) var(--container-padding) var(--space-7);
}

.content-container h1,
.content-container h2,
.content-container h3,
.content-container h4 {
  font-family: var(--font-headline);
  color: var(--color-text-light);
  line-height: 1.3;
}

.content-container h1 {
  font-size: 44px;
  font-weight: 900;
  letter-spacing: 0.02em;
  margin-bottom: var(--space-4);
  transform: skewX(var(--skew-angle));
  transform-origin: left center;
}

.content-container h2 {
  font-size: 28px;
  font-weight: 800;
  margin-top: var(--space-5);
  margin-bottom: var(--space-3);
  padding-left: 14px;
  border-left: 3px solid var(--color-accent);
}

.content-container h3 {
  font-size: 22px;
  font-weight: 700;
  margin-top: var(--space-4);
  margin-bottom: var(--space-2);
}

.content-container p {
  margin-bottom: var(--space-3);
  font-size: 15px;
  line-height: 1.9;
}

.content-container a {
  border-bottom: 1px solid currentColor;
}

.content-container ul {
  margin-bottom: var(--space-3);
}

.content-container ul li {
  position: relative;
  padding-left: 20px;
  margin-bottom: 8px;
  font-size: 15px;
  line-height: 1.8;
}

.content-container ul li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.8em;
  width: 8px;
  height: 2px;
  background: var(--color-accent);
  transform: skewX(var(--skew-angle));
}

/* ---------- 11. 基础组件 ---------- */

/* 响应式图片容器 */
.media-frame {
  position: relative;
  overflow: hidden;
  background: var(--color-surface-2);
  border: 1px solid var(--border-color);
  aspect-ratio: 16 / 9;
  width: 100%;
}

.media-frame::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  z-index: 1;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--color-accent) 0%, var(--color-accent-blue) 100%);
}

.media-frame__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-normal);
}

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

.media-frame--wide {
  aspect-ratio: 21 / 9;
}

.media-frame:hover .media-frame__img {
  transform: scale(1.04);
}

/* 状态标签 */
.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--color-accent);
  background: rgba(207, 255, 4, 0.08);
  border: 1px solid rgba(207, 255, 4, 0.30);
  padding: 3px 10px;
  text-transform: uppercase;
}

.tag--blue {
  color: var(--color-accent-blue);
  background: rgba(0, 229, 255, 0.08);
  border-color: rgba(0, 229, 255, 0.30);
}

.tag--orange {
  color: var(--color-warning);
  background: rgba(255, 92, 0, 0.08);
  border-color: rgba(255, 92, 0, 0.30);
}

/* ---------- 12. 响应式 ---------- */

/* 平板 ≤ 1023px */
@media (max-width: 1023px) {
  .site-header__nav {
    display: none;
    flex-basis: 100%;
    order: 4;
    margin-left: 0;
    padding: var(--space-3) 0 var(--space-2);
    border-top: 1px solid var(--border-color);
  }

  .site-header__nav[data-open] {
    display: block;
  }

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

  .site-header__nav-item {
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  }

  .site-header__nav-item:last-child {
    border-bottom: none;
  }

  .site-header__nav-link {
    display: block;
    padding: 14px 2px;
    font-size: 16px;
  }

  .site-header__nav-link::after {
    display: none;
  }

  .nav-toggle {
    display: inline-flex;
    margin-left: auto;
  }

  .site-footer__grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-5) var(--space-4);
  }

  .content-container h1 {
    font-size: 36px;
  }
}

/* 手机 ≤ 767px */
@media (max-width: 767px) {
  :root {
    --container-padding: 18px;
    --header-top-height: 34px;
    --header-main-min-height: 68px;
  }

  .site-header__tagline {
    font-size: 10px;
    letter-spacing: 0.14em;
  }

  .site-header__live-text {
    font-size: 10px;
    letter-spacing: 0.05em;
  }

  .site-header__logo-mark {
    width: 40px;
    height: 40px;
    font-size: 17px;
  }

  .site-header__logo-text {
    font-size: 21px;
  }

  .site-header__cta {
    display: none;
  }

  .site-header__main-inner {
    gap: 12px 16px;
  }

  .site-footer__grid {
    grid-template-columns: 1fr;
    gap: var(--space-4);
    padding: var(--space-5) 0;
  }

  .site-footer__bottom {
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
  }

  .content-container h1 {
    font-size: 30px;
  }

  .content-container h2 {
    font-size: 24px;
  }

  .btn {
    width: 100%;
  }
}

/* ---------- 13. 可访问性与动画偏好 ---------- */
@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;
  }

  .status-dot {
    animation: none;
  }

  .scroll-progress {
    display: none;
  }

  .media-frame:hover .media-frame__img {
    transform: none;
  }
}

/* ---------- 14. 打印 ---------- */
@media print {
  .site-header,
  .site-footer,
  .scroll-progress,
  .skip-link {
    display: none !important;
  }

  body {
    color: #000;
    background: #fff;
  }

  .content-container {
    max-width: none;
    padding: 0;
  }
}