/*
 * 天行体育 /assets/site.css
 */

:root {
  --c-base: #0A1128;
  --c-surface: #101D3C;
  --c-surface-2: #1A2B52;
  --c-accent: #C8FF00;
  --c-accent-2: #FF6B00;
  --c-muted: #A6B3C8;
  --c-text: #F4F7FB;
  --c-paper: #EDE6D6;
  --c-alert: #FF3B3B;
  --c-data: #00E0FF;
  --font-sans: "Noto Sans SC", "Source Han Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  --font-display: "Archivo Black", "Noto Sans SC", "PingFang SC", "Microsoft YaHei", "Arial Black", sans-serif;
  --font-mono: "IBM Plex Mono", "SF Mono", "Cascadia Mono", "Consolas", "Liberation Mono", "Courier New", monospace;
  --container: 1280px;
  --gutter: clamp(1rem, 2.5vw, 2.5rem);
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

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

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

body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: var(--c-base);
  color: var(--c-text);
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}

#main-content {
  flex: 1 0 auto;
}

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

ul, ol {
  margin-bottom: 1em;
}

h1, h2, h3, h4, h5, h6 {
  margin: 0 0 0.6em;
  color: var(--c-text);
  font-family: var(--font-display);
  font-weight: 900;
  line-height: 1.25;
  letter-spacing: 0.02em;
}

h1 {
  font-size: clamp(2.3rem, 6vw, 4.4rem);
  line-height: 1.12;
}

h2 {
  font-size: clamp(1.7rem, 4vw, 3rem);
}

h3 {
  font-size: clamp(1.25rem, 2.4vw, 1.85rem);
}

h4 {
  font-size: 1.08rem;
}

p {
  margin: 0 0 1.1em;
}

a {
  color: var(--c-accent);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
  transition: color 0.2s;
}

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

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

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

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

::-webkit-scrollbar-track {
  background: var(--c-base);
}

::-webkit-scrollbar-thumb {
  background: var(--c-surface-2);
  border: 2px solid var(--c-base);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--c-accent);
}

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

.skip-link {
  position: fixed;
  top: -100px;
  left: 1rem;
  z-index: 200;
  padding: 0.6rem 1.1rem;
  background: var(--c-accent);
  color: var(--c-base);
  font-weight: 700;
  text-decoration: none;
  transition: top 0.25s ease;
}

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

/* Header */

.site-header {
  position: sticky;
  top: 0;
  z-index: 80;
  background: rgba(10, 17, 40, 0.94);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(200, 255, 0, 0.22);
}

.header-container {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.45rem 1.5rem;
  padding-block: 0.8rem;
}

.brand-lock {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--c-text);
  text-decoration: none;
}

.brand-block {
  display: grid;
  place-items: center;
  width: 3.4rem;
  height: 2.2rem;
  padding-inline: 0.2rem;
  background: var(--c-accent);
  color: var(--c-base);
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1rem;
  letter-spacing: 0.06em;
  clip-path: polygon(0 0, 85% 0, 100% 50%, 85% 100%, 0 100%);
}

.brand-text {
  display: flex;
  flex-direction: column;
  gap: 0.08rem;
  line-height: 1.15;
}

.brand-name {
  font-family: var(--font-display);
  font-size: 1.4rem;
  line-height: 1.1;
  letter-spacing: 0.04em;
  white-space: nowrap;
}

.brand-slogan {
  font-size: 0.7rem;
  color: var(--c-muted);
  letter-spacing: 0.24em;
}

.site-nav {
  margin-left: auto;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 0.15rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.nav-link {
  position: relative;
  display: inline-block;
  padding: 0.5rem 0.7rem;
  color: var(--c-text);
  font-size: 0.92rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-decoration: none;
  white-space: nowrap;
  transition: color 0.2s;
}

.nav-link::after {
  content: "";
  position: absolute;
  left: 0.7rem;
  right: 0.7rem;
  bottom: 0.12rem;
  height: 2px;
  background: var(--c-accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.25s var(--ease);
}

.nav-link:hover {
  color: var(--c-accent);
}

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

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

.header-tools {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.btn-quick {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.45rem 0.8rem;
  background: rgba(200, 255, 0, 0.05);
  border: 1px solid rgba(200, 255, 0, 0.4);
  color: var(--c-accent);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  text-decoration: none;
  white-space: nowrap;
  transition: background 0.2s, color 0.2s, border-color 0.2s;
}

.btn-quick::before {
  content: "";
  width: 0;
  height: 0;
  border-left: 5px solid currentColor;
  border-top: 3.5px solid transparent;
  border-bottom: 3.5px solid transparent;
  transition: transform 0.2s var(--ease);
}

.btn-quick:hover {
  background: var(--c-accent);
  border-color: var(--c-accent);
  color: var(--c-base);
}

.btn-quick:hover::before {
  transform: translateX(2px);
}

.nav-toggle {
  display: none;
  align-items: center;
  gap: 0.4rem;
  margin: 0;
  padding: 0.5rem 0.75rem;
  background: rgba(200, 255, 0, 0.05);
  border: 1px solid rgba(200, 255, 0, 0.4);
  color: var(--c-text);
  font-family: var(--font-sans);
  font-size: 0.85rem;
  cursor: pointer;
  transition: background 0.2s, border-color 0.2s;
}

.nav-toggle:hover {
  background: rgba(200, 255, 0, 0.14);
}

.nav-toggle[aria-expanded="true"] {
  border-color: var(--c-accent);
  color: var(--c-accent);
}

.toggle-bar {
  display: block;
  width: 1.2rem;
  height: 2px;
  background: currentColor;
  transition: transform 0.25s var(--ease), opacity 0.2s;
}

.toggle-txt {
  font-size: 0.8rem;
}

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

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

.nav-toggle[aria-expanded="true"] .toggle-bar:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

.header-meta {
  position: relative;
  background: rgba(16, 29, 60, 0.65);
  border-top: 1px solid rgba(166, 179, 200, 0.14);
  overflow: hidden;
}

.header-meta::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 4.5rem;
  height: 2px;
  background: linear-gradient(90deg, var(--c-accent), var(--c-data));
  opacity: 0.7;
}

.header-meta-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding-block: 0.4rem 0.5rem;
}

.meta-list {
  display: flex;
  align-items: center;
  gap: 1.1rem;
  margin: 0;
  padding: 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  color: var(--c-muted);
}

.meta-list li {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  white-space: nowrap;
}

.meta-live {
  color: var(--c-accent);
}

.meta-pulse {
  width: 6px;
  height: 6px;
  background: var(--c-accent);
  transform: rotate(45deg);
  box-shadow: 0 0 8px rgba(200, 255, 0, 0.6);
  animation: metaPulse 2s ease-in-out infinite;
}

.meta-right li::before {
  content: "";
  width: 4px;
  height: 4px;
  background: var(--c-accent-2);
  transform: rotate(45deg);
}

@keyframes metaPulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.35; }
}

.scroll-progress {
  position: absolute;
  bottom: -2px;
  left: 0;
  z-index: 3;
  display: block;
  width: 0%;
  height: 2px;
  background: linear-gradient(90deg, var(--c-accent), var(--c-data));
  pointer-events: none;
}

/* Footer */

.site-footer {
  position: relative;
  margin-top: clamp(3rem, 8vw, 6rem);
  background: linear-gradient(180deg, var(--c-base) 0%, #060B1E 100%);
  border-top: 1px solid rgba(166, 179, 200, 0.15);
}

.site-footer::before {
  content: "";
  position: absolute;
  top: -2px;
  left: 0;
  width: min(38rem, 85%);
  height: 2px;
  background: linear-gradient(90deg, var(--c-accent), var(--c-accent-2) 75%, transparent);
}

.footer-container {
  padding-top: clamp(2.5rem, 6vw, 4rem);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.35fr 1fr 1.8fr;
  gap: 2rem 3rem;
  padding-bottom: 2.2rem;
}

.footer-title {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.6rem;
  letter-spacing: 0.1em;
  color: var(--c-text);
}

.footer-title::before {
  content: "";
  display: inline-block;
  width: 0.55rem;
  height: 0.55rem;
  margin-right: 0.55rem;
  background: var(--c-accent-2);
  transform: rotate(45deg) translateY(-0.1em);
}

.footer-slogan {
  margin: 0.4rem 0 1rem;
  color: var(--c-accent);
  font-size: 0.78rem;
  letter-spacing: 0.3em;
}

.footer-trust {
  max-width: 34ch;
  margin: 0;
  color: var(--c-muted);
  font-size: 0.88rem;
  line-height: 1.8;
}

.footer-contact {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--c-muted);
}

.footer-contact p {
  margin: 0.25rem 0;
}

.contact-label {
  margin-bottom: 0.6rem !important;
  color: var(--c-accent-2);
  font-size: 0.7rem;
  letter-spacing: 0.22em;
}

.contact-email {
  color: var(--c-text);
}

.contact-phone {
  color: var(--c-accent);
}

.contact-address {
  color: var(--c-muted);
}

.footer-links {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem 2rem;
}

.footer-col-title {
  margin: 0 0 0.75rem;
  color: var(--c-muted);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.2em;
}

.footer-col a {
  display: block;
  padding: 0.22rem 0;
  color: var(--c-text);
  font-size: 0.9rem;
  text-decoration: none;
  transition: color 0.2s, padding-left 0.2s;
}

.footer-col a:hover {
  color: var(--c-accent);
  padding-left: 0.4rem;
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.4rem 1rem;
  padding-block: 1rem 1.2rem;
  border-top: 1px solid rgba(166, 179, 200, 0.14);
  color: var(--c-muted);
  font-family: var(--font-mono);
  font-size: 0.74rem;
}

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

/* Buttons */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  min-height: 2.6rem;
  padding: 0.6rem 1.3rem;
  background: var(--c-accent);
  border: 1px solid var(--c-accent);
  color: var(--c-base);
  font-family: var(--font-sans);
  font-size: 0.95rem;
  font-weight: 700;
  line-height: 1;
  text-align: center;
  text-decoration: none;
  cursor: pointer;
  border-radius: 0;
  transition: background 0.2s, color 0.2s, border-color 0.2s;
}

.btn:hover {
  background: var(--c-base);
  color: var(--c-accent);
}

.btn-secondary {
  background: var(--c-accent-2);
  border-color: var(--c-accent-2);
  color: var(--c-base);
}

.btn-secondary:hover {
  background: var(--c-base);
  color: var(--c-accent-2);
}

.btn-ghost {
  background: transparent;
  border-color: rgba(200, 255, 0, 0.4);
  color: var(--c-text);
}

.btn-ghost:hover {
  background: rgba(200, 255, 0, 0.08);
  color: var(--c-accent);
}

.btn-small {
  min-height: 2rem;
  padding: 0.35rem 0.8rem;
  font-size: 0.82rem;
}

/* Breadcrumbs */

.breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin: 1rem 0 2rem;
  padding: 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--c-muted);
}

.breadcrumbs li {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

.breadcrumbs li + li::before {
  content: "/";
  color: var(--c-accent-2);
}

.breadcrumbs a {
  color: var(--c-muted);
  text-decoration: none;
  transition: color 0.2s;
}

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

.breadcrumbs [aria-current="page"] {
  color: var(--c-accent);
}

/* Grids */

.grid {
  display: grid;
  gap: 1.5rem;
}

.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));
}

/* Sections */

.section {
  padding-block: clamp(2.5rem, 7vw, 5.5rem);
}

.section-head {
  max-width: 720px;
  margin-bottom: 2.2rem;
}

.section-kicker {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.6rem;
  color: var(--c-accent);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.24em;
  text-transform: uppercase;
}

.section-kicker::before {
  content: "";
  width: 1.5rem;
  height: 2px;
  background: var(--c-accent);
}

/* Media frames */

.media-frame {
  position: relative;
  overflow: hidden;
  background: var(--c-surface);
  border: 1px solid rgba(166, 179, 200, 0.14);
}

.media-frame::before {
  content: "";
  display: block;
  padding-top: 56.25%;
  background: repeating-linear-gradient(135deg, rgba(200, 255, 0, 0.05) 0 0.8rem, transparent 0.8rem 1.6rem);
}

.media-frame--portrait::before {
  padding-top: 125%;
}

.media-frame--square::before {
  padding-top: 100%;
}

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

.media-placeholder {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  color: var(--c-muted);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.2em;
}

/* Side note */

.side-note {
  writing-mode: vertical-rl;
  height: fit-content;
  padding-left: 0.55rem;
  border-left: 2px solid var(--c-accent-2);
  color: var(--c-muted);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.35em;
}

/* Tables */

.table-wrap {
  overflow-x: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
}

th,
td {
  padding: 0.7rem 0.9rem;
  border-bottom: 1px solid rgba(166, 179, 200, 0.14);
  text-align: left;
  vertical-align: top;
}

th {
  color: var(--c-accent);
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: 0.06em;
}

tbody tr:hover {
  background: rgba(200, 255, 0, 0.04);
}

/* Reveal */

.js [data-reveal] {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
  transition-delay: var(--reveal-delay, 0s);
  will-change: opacity, transform;
}

.js [data-reveal="left"] {
  transform: translateX(-28px);
}

.js [data-reveal="right"] {
  transform: translateX(28px);
}

.js [data-reveal="zoom"] {
  transform: scale(0.96);
}

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

/* To top */

.to-top {
  position: fixed;
  right: 1.2rem;
  bottom: 1.2rem;
  z-index: 70;
  display: grid;
  place-items: center;
  width: 2.75rem;
  height: 2.75rem;
  border: 1px solid var(--c-accent);
  background: rgba(10, 17, 40, 0.9);
  color: var(--c-accent);
  font-size: 1.2rem;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: opacity 0.25s var(--ease), transform 0.25s var(--ease), visibility 0.25s, background 0.2s, color 0.2s;
}

.to-top[data-shown] {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.to-top:hover {
  background: var(--c-accent);
  color: var(--c-base);
}

/* Responsive */

@media (max-width: 960px) {
  .nav-toggle {
    display: inline-flex;
  }

  .site-nav {
    order: 5;
    flex-basis: 100%;
    margin-left: 0;
    max-height: 0;
    overflow: hidden;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-6px);
    transition: max-height 0.4s var(--ease), opacity 0.3s var(--ease), transform 0.3s var(--ease), visibility 0.3s;
  }

  .site-nav[data-open] {
    max-height: 28rem;
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
  }

  .nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding-block: 0.25rem 0.75rem;
  }

  .nav-item {
    border-top: 1px solid rgba(166, 179, 200, 0.1);
  }

  .nav-link {
    display: block;
    padding: 0.7rem 0.4rem;
    font-size: 1rem;
  }

  .nav-link::after {
    display: none;
  }

  .nav-link[aria-current="page"] {
    border-left: 3px solid var(--c-accent);
    padding-left: 0.8rem;
    background: rgba(200, 255, 0, 0.06);
    color: var(--c-accent);
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
  }

  .footer-links {
    grid-column: 1 / -1;
  }

  .grid-4 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 640px) {
  .header-tools .btn-quick {
    display: none;
  }

  .meta-list {
    gap: 0.8rem;
    font-size: 0.68rem;
  }

  .meta-right {
    display: none;
  }

  .meta-left {
    width: 100%;
    justify-content: space-between;
  }

  .grid-2,
  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 420px) {
  .brand-slogan {
    display: none;
  }
}

/* Reduced motion */

@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: 0s !important;
  }

  .js [data-reveal],
  .js [data-reveal="left"],
  .js [data-reveal="right"],
  .js [data-reveal="zoom"],
  .js [data-reveal][data-visible] {
    opacity: 1;
    transform: none;
    transition: none;
    will-change: auto;
  }
}