/* ============================================================
   九州体育NET · Site Kit
   指纹组件：命令栏页眉 / 档案式页脚 / 数据卡系统
   Entropy: ab80651503f8f9d099936962081192e1
   Fingerprint: 49df6e1bbe423c70
   ============================================================ */

/* ---------- 1. 变量与重置 ---------- */

:root {
  /* 色彩体系 */
  --deep-green: #0B3D2E;
  --mid-green: #2E5947;
  --signal-orange: #FF6B35;
  --champion-gold: #FFD700;
  --ink: #0A0A0A;
  --paper: #F2F0EB;
  --white: #FFFFFF;
  --mist-green: #D7E3DC;
  --muted-sage: #5E7268;

  /* 字体族 */
  --font-display: 'Noto Sans SC', 'Source Han Sans SC', 'PingFang SC', sans-serif;
  --font-body: 'Noto Sans SC', 'Source Han Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --font-mono: 'Roboto Mono', 'SF Mono', 'Cascadia Mono', monospace;

  /* 布局栅格 */
  --container-max: 1440px;
  --container-pad: max(24px, 4vw);
  --header-height: 56px;
  --section-space: clamp(64px, 10vw, 128px);
  --space-sm: 16px;
  --space-md: 32px;
  --space-lg: 64px;

  /* 动效 */
  --ease-fast: cubic-bezier(0.33, 1, 0.68, 1);
  --duration-fast: 0.2s;
  --focus-ring: 2px solid var(--signal-orange);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-height) + 24px);
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.8;
  color: var(--ink);
  background: var(--paper);
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--duration-fast) var(--ease-fast);
}

ul,
ol {
  list-style: none;
}

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

/* ---------- 2. 可访问性 ---------- */

:focus-visible {
  outline: var(--focus-ring);
  outline-offset: 2px;
}

.skip-link {
  position: absolute;
  top: -200px;
  left: 16px;
  z-index: 2000;
  background: var(--signal-orange);
  color: var(--deep-green);
  font-weight: 800;
  font-size: 14px;
  padding: 12px 20px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.18);
}

.skip-link:focus {
  top: 12px;
}

:target {
  scroll-margin-top: calc(var(--header-height) + 20px);
}

.visually-hidden {
  position: absolute !important;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

/* ---------- 3. 布局基础 ---------- */

#main-content {
  flex: 1 0 auto;
  width: 100%;
}

.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding-left: var(--container-pad);
  padding-right: var(--container-pad);
}

.section {
  padding-top: var(--section-space);
  padding-bottom: var(--section-space);
}

.section-eyebrow {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 400;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted-sage);
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 8px;
}

.section-eyebrow::before {
  content: '';
  display: inline-block;
  width: 20px;
  height: 1px;
  background: var(--signal-orange);
}

.section-title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.75rem, 4vw, 3.25rem);
  line-height: 1.05;
  letter-spacing: -0.02em;
  color: var(--deep-green);
  margin-bottom: var(--space-md);
}

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

/* ---------- 4. 命令栏页眉 ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--deep-green);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  transition: box-shadow var(--duration-fast) var(--ease-fast);
}

.site-header[data-scrolled] {
  box-shadow: 0 6px 32px rgba(0, 0, 0, 0.25);
}

.header-topline {
  height: 4px;
  background: linear-gradient(
    90deg,
    var(--deep-green) 0%,
    var(--mid-green) 40%,
    var(--signal-orange) 100%
  );
}

.header-bar {
  position: relative;
  background: var(--deep-green);
}

.header-inner {
  position: relative;
  display: flex;
  align-items: center;
  gap: 16px;
  height: var(--header-height);
}

/* 品牌区 */

.header-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.brand-mark {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--champion-gold);
  border: 1px solid rgba(255, 215, 0, 0.4);
  padding: 4px 8px;
  text-transform: uppercase;
  white-space: nowrap;
  line-height: 1.2;
}

.brand-name {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 16px;
  letter-spacing: 0.08em;
  color: var(--white);
  white-space: nowrap;
  line-height: 1.2;
}

/* 状态指示器 */

.header-status {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-left: 8px;
  padding: 4px 12px;
  border-left: 1px solid rgba(255, 255, 255, 0.15);
  border-right: 1px solid rgba(255, 255, 255, 0.15);
  flex-shrink: 0;
}

.status-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--signal-orange);
  animation: status-blink 2s ease-in-out infinite;
}

@keyframes status-blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.35; }
}

.status-code {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: rgba(255, 255, 255, 0.65);
  white-space: nowrap;
}

/* 主导航桌面 */

.header-nav {
  display: none;
  margin-left: auto;
}

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

.nav-item {
  display: flex;
  align-items: center;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.72);
  padding: 8px 10px;
  line-height: 1.2;
  position: relative;
  border-bottom: 2px solid transparent;
  transition: color var(--duration-fast) var(--ease-fast),
              border-color var(--duration-fast) var(--ease-fast);
}

.nav-index {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.04em;
  color: rgba(255, 215, 0, 0.45);
  transition: color var(--duration-fast) var(--ease-fast);
}

.nav-label {
  white-space: nowrap;
}

.nav-link:hover {
  color: var(--white);
  border-bottom-color: var(--signal-orange);
}

.nav-link:hover .nav-index {
  color: var(--champion-gold);
}

.nav-link[aria-current="page"] {
  color: var(--white);
  border-bottom-color: var(--signal-orange);
}

.nav-link[aria-current="page"] .nav-index {
  color: var(--champion-gold);
}

/* CTA 按钮 */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 14px;
  line-height: 1;
  padding: 10px 20px;
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition: background var(--duration-fast) var(--ease-fast),
              color var(--duration-fast) var(--ease-fast),
              border-color var(--duration-fast) var(--ease-fast),
              transform var(--duration-fast) var(--ease-fast);
}

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

.btn-accent {
  background: var(--signal-orange);
  color: var(--deep-green);
  font-weight: 800;
}

.btn-accent:hover {
  background: var(--white);
  color: var(--deep-green);
}

.btn-outline {
  background: transparent;
  color: var(--deep-green);
  border-color: var(--deep-green);
}

.btn-outline:hover {
  background: var(--deep-green);
  color: var(--white);
}

.btn-outline-light {
  background: transparent;
  color: var(--white);
  border-color: rgba(255, 255, 255, 0.5);
}

.btn-outline-light:hover {
  background: var(--white);
  color: var(--deep-green);
  border-color: var(--white);
}

.header-cta {
  margin-left: 12px;
  padding: 8px 16px;
  font-size: 13px;
  white-space: nowrap;
}

/* 移动端菜单按钮 */

.nav-toggle {
  display: none;
  align-items: center;
  gap: 8px;
  padding: 8px 10px;
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.28);
  color: var(--white);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  line-height: 1;
  margin-left: auto;
  flex-shrink: 0;
}

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

.nav-toggle-icon {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.nav-toggle-line {
  display: block;
  width: 18px;
  height: 2px;
  background: var(--white);
  transition: background var(--duration-fast) var(--ease-fast);
}

.nav-toggle:hover .nav-toggle-line {
  background: var(--signal-orange);
}

.nav-toggle-label {
  white-space: nowrap;
}

/* 滚动进度条 */

.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: transparent;
  z-index: 1100;
  pointer-events: none;
}

.scroll-progress {
  transform-origin: 0 50%;
  transform: scaleX(0);
  background: var(--signal-orange);
}

/* ---------- 5. 移动端导航下拉 ---------- */

@media (max-width: 1024px) {
  .header-inner {
    gap: 8px;
  }

  .header-status {
    display: none;
  }

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

  .header-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--deep-green);
    border-top: 1px solid rgba(255, 255, 255, 0.12);
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.3);
    margin-left: 0;
    padding: 16px var(--container-pad) 24px;
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
  }

  .header-nav[data-open] {
    display: flex;
  }

  .nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    margin-bottom: 16px;
  }

  .nav-item {
    border-bottom: 1px solid rgba(255, 255, 255, 0.07);
  }

  .nav-link {
    padding: 14px 8px;
    border-left: 3px solid transparent;
    border-bottom: none;
    font-size: 15px;
    color: rgba(255, 255, 255, 0.8);
  }

  .nav-link:hover {
    border-left-color: var(--signal-orange);
    border-bottom: none;
    background: rgba(255, 255, 255, 0.04);
  }

  .nav-link[aria-current="page"] {
    border-left-color: var(--signal-orange);
    border-bottom: none;
    background: rgba(255, 255, 255, 0.06);
  }

  .header-cta {
    margin-left: 0;
    width: 100%;
    justify-content: center;
  }
}

/* ---------- 6. 页脚 ---------- */

.site-footer {
  background: var(--deep-green);
  color: var(--white);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: 0;
}

.footer-topline {
  height: 4px;
  background: linear-gradient(
    90deg,
    var(--signal-orange) 0%,
    var(--champion-gold) 35%,
    var(--mid-green) 100%
  );
}

.footer-primary {
  display: grid;
  grid-template-columns: 1.4fr 0.8fr 0.8fr 1.2fr;
  gap: clamp(24px, 4vw, 48px);
  padding-top: clamp(40px, 6vw, 72px);
  padding-bottom: clamp(24px, 4vw, 48px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-brand {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 8px;
}

.footer-brand-mark {
  font-family: var(--font-mono);
  font-size: 22px;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--champion-gold);
  border: 1px solid rgba(255, 215, 0, 0.4);
  padding: 6px 10px;
  line-height: 1.1;
}

.footer-brand-name {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 22px;
  letter-spacing: 0.06em;
  color: var(--white);
  margin-top: 4px;
}

.footer-tagline {
  font-size: 13px;
  color: var(--muted-sage);
  letter-spacing: 0.02em;
  margin-top: 2px;
}

.footer-trust {
  font-size: 14px;
  line-height: 1.75;
  color: rgba(255, 255, 255, 0.6);
  margin-top: 16px;
  max-width: 38em;
  border-left: 3px solid var(--signal-orange);
  padding-left: 16px;
}

.footer-column {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 14px;
  letter-spacing: 0.08em;
  color: var(--champion-gold);
  text-transform: uppercase;
  padding-bottom: 8px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
  margin-bottom: 4px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.footer-title::before {
  content: '';
  width: 4px;
  height: 4px;
  background: var(--signal-orange);
  display: inline-block;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-links a {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.7);
  transition: color var(--duration-fast) var(--ease-fast),
              padding-left var(--duration-fast) var(--ease-fast);
}

.footer-links a::before {
  content: '›';
  font-family: var(--font-mono);
  color: var(--signal-orange);
  margin-right: 8px;
  display: inline-block;
}

.footer-links a:hover {
  color: var(--white);
  padding-left: 4px;
}

.footer-contact {
  color: rgba(255, 255, 255, 0.75);
}

.footer-contact p {
  font-size: 14px;
  margin-bottom: 10px;
  line-height: 1.6;
  word-break: break-word;
}

.footer-email {
  font-family: var(--font-mono);
  color: var(--champion-gold);
  font-size: 13px !important;
}

.footer-phone {
  font-family: var(--font-mono);
  font-size: 15px !important;
  letter-spacing: 0.04em;
}

.footer-address {
  color: rgba(255, 255, 255, 0.55) !important;
  font-size: 13px !important;
}

.footer-note {
  font-size: 12px !important;
  color: var(--muted-sage) !important;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 10px;
}

.footer-legal {
  display: flex;
  flex-direction: row;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px 24px;
  padding: 20px 0 28px;
}

.footer-legal p {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.45);
}

.footer-icp {
  font-family: var(--font-mono);
  letter-spacing: 0.04em;
}

/* ---------- 7. 组件：卡片、表格、面包屑 ---------- */

.card {
  background: var(--white);
  border: 1px solid rgba(11, 61, 46, 0.14);
  padding: 24px;
  transition: box-shadow var(--duration-fast) var(--ease-fast),
              transform var(--duration-fast) var(--ease-fast);
}

.card:hover {
  box-shadow: 0 4px 16px rgba(11, 61, 46, 0.1);
  transform: translateY(-2px);
}

.table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
  background: var(--white);
  border: 1px solid rgba(11, 61, 46, 0.15);
}

.table th {
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 12px;
  letter-spacing: 0.05em;
  text-align: left;
  padding: 12px 16px;
  background: var(--deep-green);
  color: var(--white);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.table td {
  padding: 12px 16px;
  border-bottom: 1px solid rgba(11, 61, 46, 0.08);
  font-variant-numeric: tabular-nums;
}

.table tbody tr:nth-child(even) {
  background: var(--mist-green);
}

.table tbody tr:last-child td {
  border-bottom: none;
}

.table .num {
  font-family: var(--font-mono);
  text-align: right;
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  font-size: 13px;
  color: var(--muted-sage);
  margin-bottom: 16px;
}

.breadcrumb a {
  color: var(--muted-sage);
  font-weight: 500;
}

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

.breadcrumb span[aria-current="page"] {
  color: var(--deep-green);
  font-weight: 700;
}

.breadcrumb-item + .breadcrumb-item::before {
  content: '/';
  margin-right: 6px;
  color: var(--muted-sage);
  font-family: var(--font-mono);
}

/* ---------- 8. 图片容器 ---------- */

.media-frame {
  position: relative;
  display: block;
  width: 100%;
  background: var(--mist-green);
  border: 1px solid rgba(11, 61, 46, 0.2);
  overflow: hidden;
}

.media-frame::before {
  content: '';
  display: block;
  padding-top: 56.25%; /* 16:9 */
}

.media-frame--ratio-4-3::before {
  padding-top: 75%;
}

.media-frame--ratio-1-1::before {
  padding-top: 100%;
}

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

.media-frame .media-placeholder {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--muted-sage);
  border: 2px dashed rgba(11, 61, 46, 0.2);
  margin: 8px;
  text-transform: uppercase;
}

/* ---------- 9. 内页通用段落 ---------- */

.page-head {
  background: var(--deep-green);
  color: var(--white);
  padding: clamp(48px, 10vw, 96px) 0;
  position: relative;
  border-bottom: 4px solid var(--signal-orange);
}

.page-head::after {
  content: attr(data-page-code);
  position: absolute;
  right: var(--container-pad);
  bottom: 16px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: rgba(255, 255, 255, 0.3);
}

.page-title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(2.5rem, 7vw, 5rem);
  line-height: 0.95;
  letter-spacing: -0.03em;
  color: var(--white);
  max-width: 14em;
}

.page-sub {
  margin-top: 16px;
  color: rgba(255, 255, 255, 0.65);
  font-size: 16px;
  max-width: 34em;
}

.prose {
  max-width: 720px;
  margin: 0 auto;
}

.prose p {
  margin-bottom: 1.5em;
}

.prose h2 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.4rem, 3vw, 2rem);
  color: var(--deep-green);
  margin-top: 2em;
  margin-bottom: 0.5em;
}

.prose h3 {
  font-weight: 800;
  font-size: 1.1rem;
  color: var(--deep-green);
  margin-top: 1.5em;
}

/* ---------- 10. 显现与动效 ---------- */

[data-reveal] {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 0.4s ease, transform 0.4s ease;
}

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

/* ---------- 11. 响应式收束 ---------- */

@media (max-width: 1024px) {
  .footer-primary {
    grid-template-columns: 1fr 1fr;
  }

  .page-head::after {
    display: none;
  }
}

@media (max-width: 768px) {
  .header-inner {
    gap: 8px;
  }

  .brand-mark {
    font-size: 11px;
    padding: 3px 6px;
  }

  .brand-name {
    font-size: 14px;
  }

  .footer-primary {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .footer-legal {
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
    padding-top: 16px;
  }

  .grid-12 {
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
  }
}

@media (max-width: 480px) {
  :root {
    --container-pad: 16px;
  }

  .nav-toggle-label {
    display: none;
  }

  .brand-mark {
    display: none;
  }
}

/* ---------- 12. 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;
  }

  .status-dot {
    animation: none;
  }

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

  .card:hover,
  .btn:active {
    transform: none;
  }
}