/* ==========================================================
   博业体育站 · 全站共享样式 /assets/site.css
   ========================================================== */

/* ---------- 1. Reset 与设计令牌 ---------- */
:root {
  --bg-night: #061426;
  --bg-deep: #0A1E33;
  --accent-green: #9AFF00;
  --accent-orange: #FF6C00;
  --text-white: #F2F6F0;
  --text-gray: #C6D0C0;
  --accent-cyan: #21E6C1;
  --alert-red: #E04B4B;

  --font-headline: 'Impact', 'Arial Black', 'Noto Sans SC', 'Microsoft YaHei', sans-serif;
  --font-body: 'Noto Sans SC', 'Microsoft YaHei', sans-serif;

  --content-w: 1280px;
  --header-masthead-h: 72px;
  --header-ticker-h: 32px;
  --header-total: calc(var(--header-masthead-h) + var(--header-ticker-h) + 1px);
  --border: rgba(198, 208, 192, 0.16);
  --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.75;
  color: var(--text-white);
  background-color: var(--bg-night);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

main,
#main-content {
  flex: 1 0 auto;
  width: 100%;
  scroll-margin-top: var(--header-total);
}

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

a {
  color: var(--text-white);
  text-decoration: none;
  transition: color var(--transition);
}

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

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

ul,
ol {
  list-style: none;
}

h1,
h2,
h3,
h4 {
  font-family: var(--font-headline);
  font-style: italic;
  font-weight: 900;
  line-height: 1.2;
  color: var(--text-white);
}

[hidden] {
  display: none !important;
}

:focus-visible {
  outline: 2px solid var(--accent-green);
  outline-offset: 3px;
}

/* ---------- 2. 可访问性工具 ---------- */
.skip-link {
  position: fixed;
  top: -56px;
  left: 16px;
  z-index: 1100;
  background: var(--accent-green);
  color: var(--bg-night);
  font-size: 14px;
  font-weight: 700;
  padding: 10px 18px;
  border: 2px solid var(--bg-night);
  transition: top var(--transition), transform var(--transition);
}

.skip-link:focus-visible {
  top: 12px;
  transform: skewX(-6deg);
}

/* ---------- 3. 内容容器与布局栅格 ---------- */
.content-container {
  width: min(var(--content-w), calc(100% - 48px));
  margin-inline: auto;
}

.grid-panel {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 24px;
}

.grid-panel--split {
  grid-template-columns: 2fr 3fr;
}

/* ---------- 4. 头部刊头 ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 200;
  background:
    linear-gradient(110deg, rgba(6, 20, 38, 0.97) 0 76%, rgba(255, 108, 0, 0.1) 76% 100%),
    rgba(6, 20, 38, 0.95);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}

.site-header__masthead {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  width: min(1360px, calc(100% - 48px));
  margin-inline: auto;
  min-height: var(--header-masthead-h);
  border-bottom: 1px solid var(--border);
}

.site-header__nav-wrap {
  display: flex;
  align-items: center;
  gap: 12px;
}

.site-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-headline);
  font-style: italic;
  font-size: 31px;
  font-weight: 900;
  line-height: 1;
  color: var(--text-white);
  transform: skewX(-6deg);
  white-space: nowrap;
}

.site-brand:hover {
  color: var(--text-white);
}

.site-brand:hover .site-brand__mark {
  color: var(--accent-green);
}

.site-brand__mark {
  transition: color var(--transition);
}

.site-brand__badge {
  display: inline-block;
  font-family: var(--font-body);
  font-style: normal;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--bg-night);
  background: var(--accent-green);
  padding: 4px 8px;
  transform: skewX(6deg);
  line-height: 1.4;
}

/* ---------- 5. 导航 ---------- */
.site-nav {
  display: flex;
  align-items: center;
  gap: 6px;
}

.site-nav__link {
  display: inline-block;
  padding: 10px 14px;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--text-gray);
  position: relative;
  border-radius: 0;
  transition: color var(--transition), background var(--transition);
}

.site-nav__link::after {
  content: '';
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: 3px;
  height: 2px;
  background: var(--accent-green);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.site-nav__link:hover {
  color: var(--text-white);
}

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

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

.nav-toggle {
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  padding: 8px 12px;
  min-width: 48px;
  min-height: 40px;
  border: 1px solid var(--border);
  background: rgba(10, 30, 51, 0.6);
  transition: border-color var(--transition);
}

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

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

.nav-toggle__text {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--text-gray);
  line-height: 1.2;
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(1) {
  transform: translateY(6px) 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(-6px) rotate(-45deg);
}

/* ---------- 6. 头部赛事状态条 ---------- */
.site-header__ticker {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  width: min(1360px, calc(100% - 48px));
  margin-inline: auto;
  min-height: var(--header-ticker-h);
  padding: 3px 0;
}

.site-header__ticker-left {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
}

.ticker-label {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.18em;
  color: var(--accent-cyan);
  text-transform: uppercase;
  white-space: nowrap;
}

.ticker-rule {
  display: block;
  width: 64px;
  height: 1px;
  background: linear-gradient(90deg, var(--accent-cyan), rgba(33, 230, 193, 0));
}

.site-header__ticker-right {
  flex-shrink: 0;
}

.live-tag {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--text-white);
  background: rgba(154, 255, 0, 0.08);
  border: 1px solid rgba(154, 255, 0, 0.32);
  padding: 3px 12px;
  line-height: 1.5;
}

.live-tag__dot {
  width: 6px;
  height: 6px;
  background: var(--accent-green);
  animation: pulse 1.6s ease-in-out infinite;
}

@keyframes pulse {
  0%,
  100% {
    opacity: 1;
    transform: scale(1);
  }
  50% {
    opacity: 0.35;
    transform: scale(0.72);
  }
}

/* ---------- 7. 滚动进度条 ---------- */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: rgba(198, 208, 192, 0.12);
  z-index: 999;
  pointer-events: none;
}

.scroll-progress__bar {
  display: block;
  height: 100%;
  width: 0;
  background: linear-gradient(90deg, var(--accent-green) 60%, var(--accent-orange));
  transition: width 0.08s linear;
}

/* ---------- 8. 页脚 ---------- */
.site-footer {
  position: relative;
  margin-top: 64px;
  background:
    linear-gradient(115deg, var(--bg-deep) 0 68%, rgba(154, 255, 0, 0.055) 68% 100%),
    var(--bg-deep);
  border-top: 3px solid var(--accent-green);
}

.site-footer::before {
  content: '';
  position: absolute;
  top: -3px;
  left: 0;
  width: 168px;
  height: 3px;
  background: var(--accent-orange);
}

.site-footer__grid {
  display: grid;
  grid-template-columns: 1.7fr 1fr 1.2fr;
  gap: 48px;
  width: min(1280px, calc(100% - 48px));
  margin-inline: auto;
  padding: 52px 0 40px;
}

.site-brand--footer {
  font-size: 28px;
  margin-bottom: 14px;
}

.site-brand--footer .site-brand__badge {
  background: var(--accent-orange);
  color: var(--bg-night);
}

.site-footer__slogan {
  font-family: var(--font-headline);
  font-style: italic;
  font-weight: 900;
  font-size: 20px;
  color: var(--accent-green);
  letter-spacing: 0.04em;
  transform: skewX(-6deg);
  margin-bottom: 12px;
}

.site-footer__desc {
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-gray);
  max-width: 400px;
}

.site-footer__title {
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-white);
  border-left: 3px solid var(--accent-orange);
  padding-left: 12px;
  margin-bottom: 16px;
}

.site-footer__list li {
  margin-bottom: 10px;
}

.site-footer__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--text-gray);
  transition: color var(--transition), transform var(--transition);
}

.site-footer__link::before {
  content: '→';
  color: var(--accent-green);
  font-size: 12px;
  font-weight: 700;
}

.site-footer__link:hover {
  color: var(--accent-green);
  transform: translateX(4px);
}

.site-footer__info {
  font-size: 14px;
  color: var(--text-gray);
  margin-bottom: 8px;
}

.site-footer__note {
  font-size: 12px;
  color: var(--accent-cyan);
  line-height: 1.7;
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid var(--border);
}

.site-footer__legal {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px 16px;
  border-top: 1px solid var(--border);
  width: min(1280px, calc(100% - 48px));
  margin-inline: auto;
  padding: 14px 0;
}

.site-footer__copyright,
.site-footer__icp {
  font-size: 13px;
  color: var(--text-gray);
}

.site-footer__legal-nav {
  display: flex;
  align-items: center;
  gap: 10px;
}

.site-footer__legal-link {
  font-size: 13px;
  color: var(--text-gray);
  transition: color var(--transition);
}

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

.site-footer__sep {
  color: var(--text-gray);
  font-size: 12px;
}

/* ---------- 9. 通用按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  font-size: 15px;
  font-weight: 700;
  line-height: 1.4;
  letter-spacing: 0.04em;
  color: var(--text-white);
  background: transparent;
  border: 2px solid var(--text-white);
  border-radius: 0;
  cursor: pointer;
  transition: background var(--transition), color var(--transition), border-color var(--transition), transform var(--transition);
}

.btn:hover {
  color: var(--bg-night);
  background: var(--text-white);
}

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

.btn--primary {
  background: var(--accent-green);
  border-color: var(--accent-green);
  color: var(--bg-night);
}

.btn--primary:hover {
  background: var(--bg-night);
  color: var(--accent-green);
  border-color: var(--accent-green);
}

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

.btn--outline:hover {
  background: var(--accent-green);
  color: var(--bg-night);
}

/* ---------- 10. 章节标题 ---------- */
.section-heading {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 28px;
}

.section-heading__index {
  font-family: var(--font-headline);
  font-style: italic;
  font-weight: 900;
  font-size: 40px;
  line-height: 1;
  color: var(--accent-green);
  transform: skewX(-6deg);
}

.section-heading__title {
  font-family: var(--font-headline);
  font-style: italic;
  font-weight: 900;
  font-size: 30px;
  line-height: 1.1;
  color: var(--text-white);
  transform: skewX(-6deg);
}

.section-heading__subtitle {
  font-size: 14px;
  color: var(--text-gray);
  margin-left: auto;
}

/* ---------- 11. 卡片 ---------- */
.card {
  position: relative;
  background: var(--bg-deep);
  border: 1px solid var(--border);
  border-top: 3px solid transparent;
  padding: 24px;
  transition: transform var(--transition), border-color var(--transition), background var(--transition);
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 3px;
  height: 0;
  background: var(--accent-green);
  transition: height var(--transition);
}

.card:hover {
  transform: translateY(-3px);
  border-color: rgba(154, 255, 0, 0.4);
  border-top-color: var(--accent-green);
  background: rgba(10, 30, 51, 0.9);
}

.card:hover::before {
  height: 100%;
}

.card__title {
  font-family: var(--font-headline);
  font-style: italic;
  font-weight: 900;
  font-size: 20px;
  line-height: 1.2;
  margin-bottom: 8px;
}

/* ---------- 12. 标签 ---------- */
.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  font-weight: 700;
  line-height: 1.4;
  padding: 4px 10px;
  color: var(--text-gray);
  background: rgba(198, 208, 192, 0.08);
  border: 1px solid var(--border);
}

.tag--green {
  color: var(--accent-green);
  border-color: rgba(154, 255, 0, 0.4);
  background: rgba(154, 255, 0, 0.06);
}

.tag--orange {
  color: var(--accent-orange);
  border-color: rgba(255, 108, 0, 0.4);
  background: rgba(255, 108, 0, 0.06);
}

/* ---------- 13. 面包屑 ---------- */
.breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  padding: 12px 0;
  font-size: 13px;
  color: var(--text-gray);
  border-bottom: 1px solid var(--border);
  margin-bottom: 32px;
}

.breadcrumbs__link {
  color: var(--text-gray);
  transition: color var(--transition);
}

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

.breadcrumbs__current {
  color: var(--accent-green);
  font-weight: 700;
}

.breadcrumbs__sep {
  width: 4px;
  height: 4px;
  background: var(--accent-orange);
  transform: rotate(45deg);
  display: inline-block;
}

/* ---------- 14. 图片容器 ---------- */
.frame-shot {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  background:
    repeating-linear-gradient(
      -45deg,
      rgba(154, 255, 0, 0.05) 0 8px,
      transparent 8px 16px
    ),
    var(--bg-deep);
  border: 1px solid var(--border);
  overflow: hidden;
  min-height: 100px;
}

.frame-shot img {
  position: absolute;
  inset: 0;
  z-index: 1;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.frame-shot__placeholder {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.2em;
  color: rgba(198, 208, 192, 0.45);
}

.frame-shot[data-caption]::before {
  content: attr(data-caption);
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 2;
  padding: 4px 10px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--accent-cyan);
  background: rgba(6, 20, 38, 0.72);
  border-top: 1px solid var(--border);
}

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

.frame-shot--16-9 {
  aspect-ratio: 16 / 9;
}

.frame-shot--tall {
  aspect-ratio: 3 / 4;
}

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

/* ---------- 15. 坐标索引 ---------- */
.coord-item {
  position: relative;
  padding-left: 24px;
  border-left: 1px solid var(--border);
  margin-bottom: 16px;
}

.coord-item::before {
  content: '';
  position: absolute;
  top: 8px;
  left: -5px;
  width: 9px;
  height: 9px;
  background: var(--accent-green);
  border: 1px solid var(--bg-night);
  transform: rotate(45deg);
}

.coord-item__label {
  display: block;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--accent-orange);
  text-transform: uppercase;
}

.coord-item__title {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-white);
}

/* ---------- 16. 路线分割线 ---------- */
.route-line {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--accent-cyan);
  text-transform: uppercase;
}

.route-line::after {
  content: '';
  height: 1px;
  flex: 1;
  background: linear-gradient(90deg, var(--accent-cyan), transparent);
}

/* ---------- 17. 筛选协议组件 ---------- */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.filter-bar__btn {
  padding: 7px 16px;
  border: 1px solid var(--border);
  background: var(--bg-deep);
  font-size: 13px;
  font-weight: 700;
  color: var(--text-gray);
  transition: background var(--transition), color var(--transition), border-color var(--transition), transform var(--transition);
}

.filter-bar__btn:hover {
  color: var(--accent-green);
  border-color: var(--accent-green);
}

.filter-bar__btn.is-active,
.filter-bar__btn[aria-pressed="true"] {
  background: var(--accent-orange);
  border-color: var(--accent-orange);
  color: var(--bg-night);
}

.filter-bar__btn:active {
  transform: translateY(1px);
}

.filter-list {
  display: grid;
  gap: 16px;
  margin-top: 20px;
}

.filter-list__item {
  background: var(--bg-deep);
  border: 1px solid var(--border);
  padding: 20px;
}

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

/* ---------- 18. 滚动显现 ---------- */
[data-reveal] {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.55s cubic-bezier(0.4, 0, 0.2, 1), transform 0.55s cubic-bezier(0.4, 0, 0.2, 1);
}

[data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ---------- 19. 响应式 ---------- */
@media (max-width: 1100px) {
  .site-nav__link {
    padding: 10px 10px;
    font-size: 14px;
  }

  .site-brand {
    font-size: 27px;
  }

  .site-brand__badge {
    font-size: 9px;
  }

  .site-header__masthead {
    gap: 16px;
  }

  .site-footer__grid {
    grid-template-columns: 1.4fr 1fr 1.2fr;
    gap: 32px;
  }
}

@media (max-width: 880px) {
  .site-header__masthead {
    width: calc(100% - 32px);
    min-height: 60px;
  }

  .site-header__ticker {
    width: calc(100% - 32px);
  }

  .site-brand {
    font-size: 24px;
  }

  .site-brand__badge {
    display: none;
  }

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

  .site-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 6px 0 16px;
    background: var(--bg-deep);
    border-top: 2px solid var(--accent-green);
    border-bottom: 1px solid var(--border);
    box-shadow: 0 24px 48px rgba(0, 0, 0, 0.45);
    max-height: calc(100vh - var(--header-total));
    overflow-y: auto;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: opacity var(--transition), transform var(--transition), visibility var(--transition);
  }

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

  .site-nav__link {
    display: block;
    padding: 14px 18px;
    font-size: 16px;
    color: var(--text-white);
    border-left: 3px solid transparent;
    border-bottom: 1px solid var(--border);
    border-radius: 0;
  }

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

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

  .site-nav__link:hover,
  .site-nav__link[aria-current="page"] {
    color: var(--accent-green);
    background: rgba(154, 255, 0, 0.05);
    border-left-color: var(--accent-green);
  }

  .site-header__ticker-left .ticker-label {
    display: none;
  }

  .ticker-rule {
    width: 36px;
  }

  .site-footer__grid {
    grid-template-columns: 1fr;
    gap: 32px;
    padding: 40px 0 28px;
    width: calc(100% - 32px);
  }

  .site-footer__legal {
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
    width: calc(100% - 32px);
  }

  .content-container {
    width: calc(100% - 32px);
  }

  .grid-panel--split {
    grid-template-columns: 1fr;
  }

  .section-heading__subtitle {
    margin-left: 0;
    width: 100%;
  }
}

@media (max-width: 560px) {
  .site-brand {
    font-size: 21px;
  }

  .site-header__masthead {
    gap: 10px;
  }

  .nav-toggle {
    padding: 6px 10px;
  }

  .filter-bar__btn {
    padding: 6px 12px;
    font-size: 12px;
  }

  .btn {
    padding: 10px 18px;
    font-size: 14px;
  }
}

/* ---------- 20. 减少动态偏好 ---------- */
@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;
  }

  .live-tag__dot {
    animation: none;
  }

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

  .scroll-progress__bar {
    transition: none;
  }
}