/* ============================================================
   熊猫体育在线 · 共享样式表 /assets/site.css
   夜场看台 × 数据仪表盘：夜场黑基底、1px 冷灰蓝网格、
   荧光绿唯一品牌锚点、电光橙只服务数据。
   ============================================================ */

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

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

body {
  margin: 0;
  background: var(--ink);
  color: var(--white);
  font-family: var(--font-body);
  font-size: var(--fs-16);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

a { color: inherit; text-decoration: none; }

button,
input,
select,
textarea { font: inherit; color: inherit; }

button {
  margin: 0;
  padding: 0;
  background: none;
  border: 0;
  cursor: pointer;
}

h1, h2, h3, h4, h5, h6, p, figure, blockquote { margin: 0; }

ul, ol { margin: 0; padding: 0; list-style: none; }

hr { border: 0; margin: 0; }

p + p { margin-top: 1em; }

/* ---------- 1. 变量 ---------- */
:root {
  /* 品牌色板 */
  --ink: #0A0C0B;
  --ink-2: #16191C;
  --grid: #2B3641;
  --white: #F4F6F3;
  --silver: #9AA5B1;
  --neon: #B4FF2E;
  --neon-2: #7FCC00;
  --orange: #FF6B1F;
  --orange-2: #FFB37A;
  --mist: #E7EAE6;
  --red: #FF4D5E;

  /* 字体 */
  --font-head: "Noto Sans SC", "Source Han Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  --font-body: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
  --font-mono: "JetBrains Mono", "DIN Alternate", "SFMono-Regular", Consolas, "Liberation Mono", monospace;

  /* 八级阶梯 */
  --fs-12: 12px;
  --fs-14: 14px;
  --fs-16: 16px;
  --fs-20: 20px;
  --fs-28: 28px;
  --fs-40: 40px;
  --fs-64: 64px;
  --fs-96: 96px;

  /* 度量 */
  --shell: 1200px;
  --gap: 24px;
  --radius: 2px;
  --line: 1px solid var(--grid);
  --pad-x: 20px;
}

@media (min-width: 768px) { :root { --pad-x: 32px; } }
@media (min-width: 1200px) { :root { --pad-x: 40px; } }

/* ---------- 2. 中文排版基础 ---------- */
h1, .h1,
h2, .h2,
h3, .h3,
h4, .h4 {
  font-family: var(--font-head);
  font-weight: 900;
  letter-spacing: -0.02em;
  line-height: 1.12;
}

h1, .h1 { font-size: clamp(32px, 6vw, var(--fs-64)); }
h2, .h2 { font-size: clamp(24px, 3.6vw, var(--fs-40)); }
h3, .h3 { font-size: clamp(19px, 2.2vw, var(--fs-28)); line-height: 1.3; }
h4, .h4 { font-size: var(--fs-20); letter-spacing: -0.01em; }

.mono {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.01em;
}

.lead {
  font-size: var(--fs-20);
  line-height: 1.7;
  color: var(--silver);
  max-width: 60ch;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  line-height: 1;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--silver);
}

.eyebrow::before {
  content: "";
  width: 18px;
  height: 1px;
  background: var(--neon);
  flex: none;
}

/* ---------- 3. 容器与网格 ---------- */
.shell {
  width: 100%;
  max-width: var(--shell);
  margin: 0 auto;
  padding-left: var(--pad-x);
  padding-right: var(--pad-x);
}

.shell--narrow { max-width: 820px; }

.grid {
  display: grid;
  gap: var(--gap);
  grid-template-columns: minmax(0, 1fr);
}

@media (min-width: 640px) {
  .grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (min-width: 900px) {
  .grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .grid--4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (min-width: 1100px) {
  .grid--4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}

.rule {
  height: 1px;
  background: var(--grid);
  width: 100%;
}

/* ---------- 4. 焦点与无障碍 ---------- */
:focus-visible {
  outline: 2px solid var(--neon);
  outline-offset: 2px;
}

.skip-link {
  position: absolute;
  left: var(--pad-x);
  top: -80px;
  z-index: 200;
  padding: 10px 18px;
  background: var(--neon);
  color: #0A0C0B;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  font-weight: 700;
  letter-spacing: 0.1em;
  border-radius: var(--radius);
  transition: top 0.15s ease;
}

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

#main-content { display: block; scroll-margin-top: 80px; }

/* ---------- 5. 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 44px;
  padding: 0 20px;
  border: 1px solid var(--grid);
  border-radius: var(--radius);
  background: var(--ink-2);
  color: var(--white);
  font-family: var(--font-body);
  font-size: var(--fs-14);
  font-weight: 700;
  letter-spacing: 0.04em;
  white-space: nowrap;
  transition: background 0.18s ease, border-color 0.18s ease,
              color 0.18s ease, transform 0.18s ease;
}

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

.btn--accent {
  background: var(--neon);
  border-color: var(--neon);
  color: #0A0C0B;
}

.btn--accent:hover {
  background: var(--neon-2);
  border-color: var(--neon-2);
  color: #0A0C0B;
}

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

.btn--orange {
  background: var(--orange);
  border-color: var(--orange);
  color: #0A0C0B;
}

.btn--sm {
  height: 32px;
  padding: 0 12px;
  font-size: var(--fs-12);
  letter-spacing: 0.08em;
}

.btn--block { width: 100%; }

/* ---------- 6. 堆叠面板 ---------- */
.panel {
  position: relative;
  background: var(--ink-2);
  border: var(--line);
  border-radius: var(--radius);
}

.panel__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 20px;
  border-bottom: var(--line);
}

.panel__title {
  font-family: var(--font-head);
  font-size: var(--fs-16);
  font-weight: 900;
  letter-spacing: -0.01em;
}

.panel__body { padding: 20px; }

.panel--light {
  background: var(--mist);
  border-color: #C6CCC5;
  color: #0A0C0B;
}

.panel--light .panel__head { border-bottom-color: #C6CCC5; }
.panel--light .panel__body { color: #16191C; }

.stack { display: block; }

.stack__item {
  position: relative;
  background: var(--ink-2);
  border: var(--line);
  border-radius: var(--radius);
}

.stack__item + .stack__item { margin-top: 12px; }

/* ---------- 7. 图片容器 ---------- */
.figure {
  position: relative;
  display: block;
  overflow: hidden;
  background: var(--ink-2);
  border: var(--line);
  border-radius: var(--radius);
}

.figure > img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.figure--1x1 { aspect-ratio: 1 / 1; }
.figure--4x3 { aspect-ratio: 4 / 3; }
.figure--3x2 { aspect-ratio: 3 / 2; }
.figure--16x9 { aspect-ratio: 16 / 9; }
.figure--21x9 { aspect-ratio: 21 / 9; }
.figure--tall { aspect-ratio: 3 / 4; }

.figure--empty {
  background-color: var(--ink-2);
  background-image:
    repeating-linear-gradient(90deg, rgba(154, 165, 177, 0.16) 0 1px, transparent 1px 48px),
    repeating-linear-gradient(0deg, rgba(154, 165, 177, 0.16) 0 1px, transparent 1px 48px);
}

.figure__tag {
  position: absolute;
  left: 0;
  bottom: 0;
  padding: 6px 10px;
  background: var(--ink);
  border-top: var(--line);
  border-right: var(--line);
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  line-height: 1.2;
  letter-spacing: 0.08em;
  color: var(--neon);
}

/* ---------- 8. 数据与标记 ---------- */
.metric {
  border-left: 2px solid var(--neon);
  padding-left: 12px;
}

.metric__value {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: var(--fs-28);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.02em;
}

.metric__label {
  margin-top: 6px;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--silver);
}

.metric--orange { border-left-color: var(--orange); }
.metric--orange .metric__value { color: var(--orange); }

.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  height: 24px;
  padding: 0 8px;
  border: var(--line);
  border-radius: var(--radius);
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--silver);
}

.tag--live { color: var(--neon); border-color: var(--neon-2); }
.tag--hot { color: var(--orange); border-color: var(--orange); }

/* ---------- 9. 正文与面包屑 ---------- */
.prose {
  max-width: 68ch;
  font-size: 17px;
  line-height: 1.75;
  color: var(--white);
}

.prose h2 { margin: 1.6em 0 0.5em; font-size: var(--fs-28); }
.prose h3 { margin: 1.4em 0 0.4em; font-size: var(--fs-20); }

.prose ul,
.prose ol { margin: 1em 0; padding-left: 1.25em; }

.prose ul { list-style: square; }
.prose ol { list-style: decimal; }
.prose li { margin: 0.35em 0; }
.prose li::marker { color: var(--neon-2); }
.prose strong { font-weight: 800; }

.prose a {
  color: var(--neon);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.prose code {
  font-family: var(--font-mono);
  font-size: 0.92em;
  padding: 1px 5px;
  border: var(--line);
  border-radius: var(--radius);
  color: var(--orange-2);
}

.crumbs { padding: 18px 0 0; }

.crumbs__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.08em;
  color: var(--silver);
}

.crumbs__item + .crumbs__item::before {
  content: "/";
  margin-right: 8px;
  color: var(--grid);
}

.crumbs a { color: var(--silver); }
.crumbs a:hover { color: var(--neon); }

/* ---------- 10. 标签页（数据对照） ---------- */
.tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 1px;
  border-bottom: var(--line);
}

.tabs__btn {
  height: 42px;
  padding: 0 16px;
  border: 1px solid transparent;
  border-bottom: 0;
  border-radius: var(--radius) var(--radius) 0 0;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--silver);
  transition: color 0.18s ease, background 0.18s ease, border-color 0.18s ease;
}

.tabs__btn:hover { color: var(--white); }

.tabs__btn[aria-selected="true"] {
  color: var(--neon);
  background: var(--ink-2);
  border-color: var(--grid);
}

.tabs__panel { padding: 20px 0 0; }
.tabs__panel[hidden] { display: none; }

/* ---------- 11. 头部 ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 80;
  background: var(--ink);
}

/* 11.1 品牌说明条 */
.brandbar {
  background: var(--ink);
  border-bottom: var(--line);
  max-height: 48px;
  overflow: hidden;
  transition: max-height 0.2s ease, opacity 0.2s ease;
}

.site-header[data-stuck] .brandbar {
  max-height: 0;
  opacity: 0;
  border-bottom-color: transparent;
}

.brandbar__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 8px 20px;
  min-height: 44px;
  padding-top: 6px;
  padding-bottom: 6px;
}

.brandbar__line {
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.1em;
  color: var(--silver);
}

.brandbar__meta {
  display: flex;
  align-items: center;
  gap: 16px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--silver);
}

.brandbar__lang {
  color: var(--white);
  border-left: 2px solid var(--neon);
  padding-left: 8px;
}

.brandbar__icp { white-space: nowrap; }

/* 11.2 主栏目导航 */
.mainnav {
  position: relative;
  background: rgba(10, 12, 11, 0.96);
  border-bottom: var(--line);
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
}

.mainnav__inner {
  display: flex;
  align-items: center;
  gap: 12px;
  min-height: 64px;
  transition: min-height 0.2s ease;
}

.site-header[data-stuck] .mainnav__inner { min-height: 52px; }

.mainnav__brand {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  flex: none;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: var(--fs-16);
  letter-spacing: -0.01em;
  color: var(--white);
  white-space: nowrap;
}

.mainnav__brand-mark {
  display: block;
  width: 10px;
  height: 10px;
  background: var(--neon);
  flex: none;
}

.mainnav__list { display: none; }

.mainnav__item { display: block; }

.mainnav__link {
  position: relative;
  display: flex;
  align-items: center;
  height: 64px;
  padding: 0 14px;
  font-size: 15px;
  letter-spacing: 0.02em;
  color: var(--silver);
  transition: color 0.18s ease;
}

.mainnav__link::after {
  content: "";
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: 0;
  height: 2px;
  background: var(--neon);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 0.18s ease;
}

.mainnav__link:hover { color: var(--white); }
.mainnav__link:hover::after { transform: scaleX(1); }

.mainnav__link[aria-current="page"] { color: var(--white); }
.mainnav__link[aria-current="page"]::after { transform: scaleX(1); }

.mainnav__item--cta { display: block; }
.mainnav__link--cta { color: var(--neon); }

.mainnav__cta { display: none; }

/* 11.3 移动端开关 */
.navtoggle {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  height: 36px;
  margin-left: auto;
  padding: 0 12px;
  border: var(--line);
  border-radius: var(--radius);
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.1em;
  color: var(--white);
  transition: border-color 0.18s ease, color 0.18s ease;
}

.navtoggle:hover { border-color: var(--neon-2); color: var(--neon); }

.navtoggle__bars {
  position: relative;
  display: block;
  width: 16px;
  height: 8px;
  flex: none;
}

.navtoggle__bars::before,
.navtoggle__bars::after {
  content: "";
  position: absolute;
  left: 0;
  width: 16px;
  height: 1px;
  background: var(--neon);
  transition: transform 0.18s ease;
}

.navtoggle__bars::before { top: 0; }
.navtoggle__bars::after { bottom: 0; }

.mainnav[data-open] .navtoggle__bars::before { transform: translateY(3.5px) rotate(45deg); }
.mainnav[data-open] .navtoggle__bars::after { transform: translateY(-3.5px) rotate(-45deg); }

/* 11.4 移动端下拉 */
@media (max-width: 899px) {
  .mainnav__list {
    position: absolute;
    left: 0;
    right: 0;
    top: 100%;
    display: none;
    flex-direction: column;
    background: var(--ink);
    border-top: var(--line);
    border-bottom: var(--line);
    max-height: calc(100vh - 60px);
    overflow-y: auto;
  }

  .mainnav[data-open] .mainnav__list { display: flex; }

  .mainnav__link {
    height: 52px;
    padding: 0 var(--pad-x);
    border-bottom: var(--line);
    font-size: var(--fs-16);
  }

  .mainnav__item:last-child .mainnav__link { border-bottom: 0; }
  .mainnav__link::after { display: none; }
  .mainnav__link[aria-current="page"] { color: var(--neon); }
  .brandbar__icp { display: none; }
}

/* 11.5 桌面端导航 */
@media (min-width: 900px) {
  .navtoggle { display: none; }
  .mainnav__item--cta { display: none; }

  .mainnav__list {
    display: flex;
    align-items: stretch;
    margin-left: 10px;
  }

  .mainnav__cta {
    display: block;
    margin-left: auto;
  }
}

/* ---------- 12. 页脚 ---------- */
.site-footer {
  margin-top: 80px;
  background: var(--ink);
  border-top: var(--line);
}

.foot-main {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 32px;
  padding: 56px 0 34px;
  border-bottom: var(--line);
}

.foot-brand { max-width: 32ch; }

.foot-brand__name {
  display: inline-block;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: var(--fs-20);
  letter-spacing: -0.02em;
  color: var(--white);
}

.foot-brand__name:hover { color: var(--neon); }

.foot-brand__meta {
  margin-top: 10px;
  font-size: var(--fs-14);
  line-height: 1.7;
  color: var(--silver);
}

.foot-col__title {
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--white);
  padding-bottom: 10px;
  border-bottom: var(--line);
}

.foot-col__list { margin-top: 14px; }
.foot-col__list li + li { margin-top: 10px; }

.foot-col__list a {
  font-size: var(--fs-14);
  color: var(--silver);
  transition: color 0.18s ease, padding-left 0.18s ease;
}

.foot-col__list a:hover {
  color: var(--neon);
  padding-left: 4px;
}

@media (min-width: 640px) {
  .foot-main { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .foot-brand { grid-column: 1 / -1; }
}

@media (min-width: 960px) {
  .foot-main {
    grid-template-columns: 1.6fr repeat(3, minmax(0, 1fr));
    gap: 40px;
  }
  .foot-brand { grid-column: auto; }
}

.foot-contact {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 18px 32px;
  padding: 30px 0;
  border-bottom: var(--line);
}

.foot-contact__row {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-top: 0;
}

.foot-contact__key {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--silver);
}

.foot-contact__val {
  font-size: var(--fs-14);
  color: var(--white);
  word-break: break-word;
}

.foot-contact__note {
  grid-column: 1 / -1;
  margin-top: 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--silver);
}

@media (min-width: 768px) {
  .foot-contact { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

.foot-legal {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 10px 24px;
  padding: 20px 0 34px;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.04em;
  color: var(--silver);
}

.foot-legal__line { margin: 0; }

/* ---------- 13. JS 注入组件 ---------- */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  z-index: 120;
  background: rgba(43, 54, 65, 0.55);
  pointer-events: none;
}

.scroll-progress__fill {
  display: block;
  height: 100%;
  background: var(--neon);
  transform: scaleX(0);
  transform-origin: 0 50%;
}

.totop {
  position: fixed;
  right: 16px;
  bottom: 24px;
  z-index: 110;
  display: inline-flex;
  align-items: center;
  height: 38px;
  padding: 0 14px;
  border: var(--line);
  border-radius: var(--radius);
  background: var(--ink-2);
  color: var(--white);
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.1em;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.2s ease, visibility 0.2s ease,
              border-color 0.18s ease, color 0.18s ease;
}

.totop[data-visible="true"] {
  opacity: 1;
  visibility: visible;
}

.totop:hover { border-color: var(--neon); color: var(--neon); }

/* ---------- 14. 滚动显现 ---------- */
[data-reveal].is-armed {
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 0.22s ease, transform 0.22s ease;
}

[data-reveal].is-armed.is-in {
  opacity: 1;
  transform: none;
}

/* ---------- 15. 降级 ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }

  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }

  [data-reveal].is-armed {
    opacity: 1;
    transform: none;
  }

  .btn:hover,
  .totop:hover { transform: none; }
}