/* ============================================================
   悟空体育 · 共享层 /assets/site.css
   轨道导航 + 暗场三级分区 + 金箍环动势
   ============================================================ */

/* ---------- 1. 设计变量 ---------- */
:root {
  --ink-900: #0B0F12;
  --ink-800: #141A20;
  --ink-750: #10161B;
  --rock: #2A2F35;
  --gold: #F2A33A;
  --gold-soft: #FFD08A;
  --jade: #3BC9B4;
  --slate: #8FA3B5;
  --cream: #F4EFE6;
  --clay: #C96F4A;
  --moss: #5E7A63;

  --rail-w: 268px;

  --radius-xl: 32px;
  --radius-lg: 24px;
  --radius-md: 16px;
  --radius-pill: 999px;

  --font-title: "Noto Sans SC", "Source Han Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, sans-serif;
  --font-body: "Noto Sans SC", "Source Han Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, sans-serif;
  --font-num: ui-monospace, "IBM Plex Mono", "SF Mono", Menlo, Consolas, monospace;
}

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 88px;
}

body {
  margin: 0;
  background-color: var(--ink-900);
  color: var(--cream);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

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

h1,
h2,
h3,
h4 {
  font-family: var(--font-title);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.22;
  margin: 0 0 0.55em;
  color: var(--cream);
}

h1 {
  font-size: clamp(2rem, 5.2vw, 3.4rem);
  font-weight: 900;
  letter-spacing: -0.025em;
}

h2 {
  font-size: clamp(1.5rem, 3vw, 2rem);
}

h3 {
  font-size: 1.18rem;
}

p {
  margin: 0 0 1.1em;
}

p:last-child {
  margin-bottom: 0;
}

a {
  color: inherit;
}

ul,
ol {
  padding-inline-start: 1.2em;
}

code,
kbd,
samp {
  font-family: var(--font-num);
  font-size: 0.92em;
}

button {
  font-family: inherit;
}

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

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

/* ---------- 3. 容器与节奏 ---------- */
.wrap {
  width: 100%;
  max-width: 1180px;
  margin-inline: auto;
  padding-inline: 22px;
}

.section {
  padding-block: 56px;
}

.section-head {
  max-width: 42em;
  margin-bottom: 28px;
}

.section-head p {
  color: var(--slate);
  margin: 0;
}

.lead {
  max-width: 40em;
  font-size: clamp(1.04rem, 1.6vw, 1.22rem);
  line-height: 1.72;
  color: var(--slate);
}

.prose {
  max-width: 41em;
}

.prose h2,
.prose h3 {
  margin-top: 1.6em;
}

.prose p {
  margin-bottom: 1.15em;
}

.stack {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

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

.grid {
  display: grid;
  gap: 20px;
  grid-template-columns: repeat(auto-fit, minmax(min(260px, 100%), 1fr));
}

/* ---------- 4. 通用控件 ---------- */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 14px;
  font-family: var(--font-num);
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: 0.24em;
  color: var(--jade);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 26px;
  border: 1px solid transparent;
  border-radius: var(--radius-pill);
  font-family: inherit;
  font-size: 15px;
  font-weight: 700;
  line-height: 1.2;
  text-decoration: none;
  cursor: pointer;
  transition: transform 0.2s ease, background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

.btn--gold {
  background-color: var(--gold);
  color: var(--ink-900);
  box-shadow: 0 14px 30px -18px rgba(242, 163, 58, 0.95);
}

.btn--gold:hover {
  background-color: var(--gold-soft);
  transform: translateY(-2px);
}

.btn--ghost {
  background-color: transparent;
  border-color: var(--rock);
  color: var(--cream);
}

.btn--ghost:hover {
  border-color: var(--gold);
  color: var(--gold-soft);
  transform: translateY(-2px);
}

.pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  border: 1px solid var(--rock);
  border-radius: var(--radius-pill);
  background-color: var(--ink-800);
  color: var(--slate);
  font-size: 12.5px;
  font-weight: 600;
  line-height: 1.5;
  white-space: nowrap;
}

.pill--gold {
  background-color: rgba(242, 163, 58, 0.14);
  border-color: rgba(242, 163, 58, 0.42);
  color: var(--gold-soft);
}

.pill--jade {
  background-color: rgba(59, 201, 180, 0.12);
  border-color: rgba(59, 201, 180, 0.38);
  color: var(--jade);
}

.card {
  padding: 24px;
  border: 1px solid var(--rock);
  border-radius: var(--radius-lg);
  background-color: var(--ink-800);
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0 0 26px;
  padding: 0;
  list-style: none;
  font-size: 13px;
  color: var(--slate);
}

.breadcrumb a {
  color: var(--slate);
  text-decoration: none;
}

.breadcrumb a:hover {
  color: var(--gold-soft);
}

.breadcrumb .is-current {
  color: var(--cream);
}

.breadcrumb li + li::before {
  content: "／";
  margin-inline-end: 8px;
  color: var(--rock);
}

/* ---------- 5. 图片容器基础规则 ---------- */
.media-frame {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16 / 10;
  border: 1px solid var(--rock);
  border-radius: var(--radius-lg);
  background-color: var(--ink-800);
  background-image: linear-gradient(135deg, rgba(242, 163, 58, 0.08), rgba(59, 201, 180, 0.06));
}

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

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

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

.media-frame--tall {
  aspect-ratio: 4 / 5;
}

/* ---------- 6. 数据可视化组件 ---------- */
.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14.5px;
}

.data-table thead th {
  padding: 12px 14px;
  background-color: var(--rock);
  color: var(--cream);
  font-size: 12.5px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-align: left;
  white-space: nowrap;
}

.data-table tbody td {
  padding: 13px 14px;
  border-bottom: 1px solid rgba(42, 47, 53, 0.9);
  color: var(--slate);
  vertical-align: middle;
}

.data-table tbody tr:hover td {
  background-color: var(--ink-800);
  color: var(--cream);
}

.data-table .is-num {
  font-family: var(--font-num);
  font-variant-numeric: tabular-nums;
  text-align: right;
}

.rank-bar {
  position: relative;
  height: 10px;
  overflow: hidden;
  border-radius: var(--radius-pill);
  background-color: var(--rock);
}

.rank-bar > span {
  display: block;
  height: 100%;
  border-radius: inherit;
  background-image: linear-gradient(90deg, var(--gold), var(--gold-soft));
}

.ring {
  --ring-value: 0;
  position: relative;
  display: grid;
  place-items: center;
  width: 168px;
  height: 168px;
  border-radius: 50%;
  background-image: conic-gradient(from -90deg, var(--gold) calc(var(--ring-value) * 1%), rgba(42, 47, 53, 0.92) 0);
}

.ring-inner {
  display: grid;
  place-items: center;
  gap: 2px;
  width: calc(100% - 24px);
  height: calc(100% - 24px);
  border-radius: 50%;
  background-color: var(--ink-900);
  font-family: var(--font-num);
  color: var(--gold-soft);
  text-align: center;
}

/* ---------- 7. 标签页 ---------- */
.tabset {
  margin: 0;
}

.tablist {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 6px;
  padding: 6px;
  border: 1px solid var(--rock);
  border-radius: var(--radius-pill);
  background-color: var(--ink-800);
}

.tab {
  padding: 9px 18px;
  border: 0;
  border-radius: var(--radius-pill);
  background-color: transparent;
  color: var(--slate);
  font-size: 14px;
  font-weight: 600;
  line-height: 1.3;
  cursor: pointer;
  transition: background-color 0.2s ease, color 0.2s ease;
}

.tab:hover {
  color: var(--cream);
}

.tab[aria-selected="true"] {
  background-color: var(--gold);
  color: var(--ink-900);
}

.tabpanel {
  margin-top: 24px;
}

.tabpanel[hidden] {
  display: none;
}

/* ---------- 8. 锚点目录 ---------- */
.anchor-nav {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.anchor-nav a {
  display: block;
  padding: 8px 12px;
  border-inline-start: 2px solid var(--rock);
  color: var(--slate);
  font-size: 13.5px;
  text-decoration: none;
  transition: color 0.18s ease, border-color 0.18s ease;
}

.anchor-nav a:hover {
  color: var(--cream);
}

.anchor-nav a[aria-current="true"] {
  border-inline-start-color: var(--gold);
  color: var(--gold-soft);
}

/* ---------- 9. 滚动进度条（由 JS 注入） ---------- */
.scroll-meter {
  position: fixed;
  top: 0;
  right: 0;
  left: 0;
  z-index: 300;
  height: 3px;
  transform: scaleX(0);
  transform-origin: 0 50%;
  background-image: linear-gradient(90deg, var(--jade), var(--gold));
  pointer-events: none;
}

/* ---------- 10. 跳至主内容 ---------- */
.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 400;
  padding: 12px 22px;
  border-radius: var(--radius-pill);
  background-color: var(--gold);
  color: var(--ink-900);
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
  transform: translateY(-180%);
  transition: transform 0.22s ease;
}

.skip-link:focus-visible {
  transform: translateY(0);
}

/* ============================================================
   11. 头部：移动优先
   ============================================================ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 18px;
  background-color: var(--ink-900);
  border-bottom: 1px solid var(--rock);
}

.header-bar {
  display: flex;
  flex: 1 1 auto;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  min-width: 0;
}

/* 品牌 */
.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  min-width: 0;
  color: var(--cream);
  text-decoration: none;
}

.brand-glyph {
  position: relative;
  display: grid;
  flex: none;
  place-items: center;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background-image: conic-gradient(from 200deg, var(--gold), var(--gold-soft) 26%, rgba(242, 163, 58, 0.12) 58%, var(--gold) 96%);
  animation: glyph-spin 16s linear infinite;
}

.brand-glyph::after {
  content: "";
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background-color: var(--ink-900);
}

@keyframes glyph-spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.brand-text {
  display: flex;
  flex-direction: column;
  min-width: 0;
  line-height: 1.15;
}

.brand-name {
  font-family: var(--font-title);
  font-size: 17px;
  font-weight: 900;
  letter-spacing: -0.02em;
  color: var(--cream);
}

.brand-tagline {
  margin-top: 2px;
  font-size: 10.5px;
  letter-spacing: 0.1em;
  color: var(--slate);
  white-space: nowrap;
}

/* 抽屉开关 */
.nav-toggle {
  display: inline-flex;
  flex: none;
  align-items: center;
  gap: 9px;
  padding: 9px 16px 9px 14px;
  border: 1px solid var(--rock);
  border-radius: var(--radius-pill);
  background-color: var(--ink-800);
  color: var(--cream);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: border-color 0.2s ease, background-color 0.2s ease;
}

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

.nav-toggle-icon {
  position: relative;
  display: block;
  width: 16px;
  height: 12px;
}

.nav-toggle-icon i {
  position: absolute;
  left: 0;
  width: 100%;
  height: 2px;
  border-radius: 2px;
  background-color: var(--gold);
  transition: transform 0.26s ease;
}

.nav-toggle-icon i:first-child {
  top: 0;
}

.nav-toggle-icon i:last-child {
  bottom: 0;
}

.site-header[data-open] .nav-toggle-icon i:first-child {
  transform: translateY(5px) rotate(45deg);
}

.site-header[data-open] .nav-toggle-icon i:last-child {
  transform: translateY(-5px) rotate(-45deg);
}

.nav-toggle-label {
  line-height: 1;
}

/* 遮罩 */
.nav-scrim {
  position: fixed;
  inset: 0;
  z-index: 1;
  background-color: rgba(6, 9, 11, 0.74);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.site-header[data-open] .nav-scrim {
  opacity: 1;
  pointer-events: auto;
}

/* 抽屉 */
.site-nav {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  z-index: 2;
  display: flex;
  flex-direction: column;
  width: min(348px, 88vw);
  padding: 84px 24px 30px;
  overflow-y: auto;
  border-left: 1px solid var(--rock);
  background-image: linear-gradient(180deg, var(--ink-750), var(--ink-900) 68%);
  visibility: hidden;
  transform: translateX(102%);
  transition: transform 0.36s cubic-bezier(0.22, 0.85, 0.26, 1), visibility 0.36s;
}

.site-header[data-open] .site-nav {
  visibility: visible;
  transform: translateX(0);
}

.nav-caption {
  margin: 0 0 14px;
  padding-inline-start: 16px;
  font-family: var(--font-num);
  font-size: 11px;
  letter-spacing: 0.26em;
  color: var(--slate);
}

.nav-list {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.nav-link {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 14px 16px;
  border: 1px solid transparent;
  border-radius: var(--radius-pill);
  color: var(--slate);
  font-size: 16px;
  font-weight: 500;
  text-decoration: none;
  transition: background-color 0.18s ease, color 0.18s ease, border-color 0.18s ease;
}

.nav-num {
  flex: none;
  font-family: var(--font-num);
  font-size: 11px;
  letter-spacing: 0.05em;
  color: rgba(143, 163, 181, 0.55);
  transition: color 0.18s ease;
}

.nav-text {
  display: inline-block;
  min-width: 0;
}

.nav-link:hover,
.nav-link:focus-visible {
  border-color: var(--rock);
  background-color: var(--ink-800);
  color: var(--cream);
}

.nav-link[aria-current="page"] {
  border-color: transparent;
  background-image: linear-gradient(96deg, var(--gold), var(--gold-soft));
  color: var(--ink-900);
  font-weight: 800;
}

.nav-link[aria-current="page"] .nav-num {
  color: rgba(11, 15, 18, 0.62);
}

.rail-cta {
  display: block;
  margin-top: auto;
  padding: 15px 20px;
  border-radius: var(--radius-pill);
  background-color: var(--gold);
  color: var(--ink-900);
  font-size: 15px;
  font-weight: 800;
  letter-spacing: 0.01em;
  text-align: center;
  text-decoration: none;
  box-shadow: 0 16px 34px -20px rgba(242, 163, 58, 0.95);
  transition: background-color 0.2s ease, transform 0.2s ease;
}

.rail-cta:hover {
  background-color: var(--gold-soft);
  transform: translateY(-2px);
}

/* ============================================================
   12. 页脚
   ============================================================ */
.site-footer {
  position: relative;
  padding: 62px 22px 30px;
  overflow: hidden;
  border-top: 1px solid var(--rock);
  background-image: linear-gradient(180deg, var(--ink-900) 0%, #070A0D 100%);
  color: var(--slate);
}

.site-footer::before {
  content: "";
  position: absolute;
  top: -190px;
  right: -150px;
  width: 440px;
  height: 440px;
  border-radius: 50%;
  background-image: radial-gradient(circle, rgba(242, 163, 58, 0.16), rgba(242, 163, 58, 0) 68%);
  pointer-events: none;
}

.footer-inner {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  gap: 38px 30px;
  max-width: 1180px;
  margin-inline: auto;
}

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

.footer-brand {
  display: inline-block;
  font-family: var(--font-title);
  font-size: 26px;
  font-weight: 900;
  letter-spacing: -0.025em;
  color: var(--cream);
  text-decoration: none;
}

.footer-brand:hover {
  color: var(--gold-soft);
}

.footer-summary {
  max-width: 34em;
  margin: 14px 0 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--slate);
}

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

.footer-title {
  margin: 0 0 14px;
  font-family: var(--font-num);
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: 0.22em;
  color: var(--gold);
}

.footer-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.footer-list a {
  display: inline-block;
  color: var(--cream);
  font-size: 15px;
  text-decoration: none;
  transition: color 0.18s ease, transform 0.18s ease;
}

.footer-list a:hover {
  color: var(--gold-soft);
  transform: translateX(3px);
}

.footer-contact {
  display: grid;
  gap: 12px;
  margin: 0;
}

.footer-contact-row {
  display: grid;
  gap: 3px;
}

.footer-contact dt {
  font-size: 11px;
  letter-spacing: 0.16em;
  color: rgba(143, 163, 181, 0.78);
}

.footer-contact dd {
  margin: 0;
  font-size: 14px;
  line-height: 1.65;
  color: var(--cream);
  word-break: break-word;
}

.footer-note {
  margin: 18px 0 0;
  padding-inline-start: 14px;
  border-inline-start: 2px solid var(--clay);
  font-size: 12.5px;
  line-height: 1.75;
  color: var(--slate);
}

.footer-base {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px 24px;
  max-width: 1180px;
  margin: 46px auto 0;
  padding-top: 22px;
  border-top: 1px solid var(--rock);
  font-size: 12.5px;
  color: var(--slate);
}

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

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

/* ============================================================
   13. 响应式
   ============================================================ */
@media (max-width: 420px) {
  .brand-tagline {
    display: none;
  }
}

@media (min-width: 720px) {
  body {
    font-size: 17.5px;
  }

  .wrap {
    padding-inline: 32px;
  }

  .section {
    padding-block: 68px;
  }

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

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

  .site-footer {
    padding: 72px 32px 34px;
  }
}

@media (min-width: 1024px) {
  body {
    padding-inline-start: var(--rail-w);
  }

  html {
    scroll-padding-top: 24px;
  }

  .wrap {
    padding-inline: 44px;
  }

  .section {
    padding-block: 84px;
  }

  /* 轨道头部 */
  .site-header {
    position: fixed;
    top: 0;
    bottom: 0;
    left: 0;
    z-index: 150;
    display: flex;
    flex-direction: column;
    gap: 0;
    width: var(--rail-w);
    padding: 30px 24px 28px;
    overflow-y: auto;
    border-right: 1px solid var(--rock);
    border-bottom: 0;
    background-color: var(--ink-900);
    background-image: radial-gradient(ellipse at 50% 0%, rgba(242, 163, 58, 0.13), rgba(11, 15, 18, 0) 62%);
  }

  .header-bar {
    flex: none;
  }

  .brand-glyph {
    width: 42px;
    height: 42px;
  }

  .brand-glyph::after {
    width: 26px;
    height: 26px;
  }

  .brand-name {
    font-size: 19px;
  }

  .brand-tagline {
    font-size: 11px;
  }

  .nav-toggle {
    display: none;
  }

  .nav-scrim {
    display: none;
  }

  .site-nav {
    position: static;
    display: flex;
    flex: 1 1 auto;
    flex-direction: column;
    width: 100%;
    padding: 40px 0 0;
    overflow: visible;
    border-left: 0;
    background-image: none;
    visibility: visible;
    transform: none;
  }

  .nav-caption {
    padding-inline-start: 14px;
    margin-bottom: 12px;
    font-size: 10.5px;
  }

  .nav-list {
    gap: 3px;
  }

  .nav-link {
    padding: 11px 14px;
    font-size: 15px;
  }

  .rail-cta {
    margin-top: auto;
  }

  .scroll-meter {
    left: var(--rail-w);
  }

  .footer-inner {
    grid-template-columns: 1.7fr 1fr 1fr 1.35fr;
    gap: 40px 36px;
  }

  .footer-lead {
    grid-column: auto;
  }

  .site-footer {
    padding: 82px 44px 34px;
  }
}

@media (min-width: 1400px) {
  .site-footer {
    padding-inline: 60px;
  }
}

/* ---------- 14. 减少动效 ---------- */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }

  .brand-glyph {
    animation: none;
  }
}