/* ============================================================
   风云体育官网 · /assets/site.css
   共享外壳样式：reset / 变量 / 中文排版 / 头部 / 页脚 / 通用组件
   ============================================================ */

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

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

body {
  margin: 0;
  min-height: 100vh;
  background-color: var(--night);
  background-image:
    radial-gradient(760px 400px at 6% -10%, rgba(56, 242, 200, 0.10), transparent 62%),
    radial-gradient(600px 340px at 104% 4%, rgba(255, 162, 58, 0.09), transparent 60%);
  background-repeat: no-repeat;
  color: var(--text);
  font-family: var(--sans);
  font-size: 16px;
  font-weight: 400;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

h1, h2, h3, h4, h5, h6 {
  margin: 0 0 0.5em;
  color: var(--paper);
  font-weight: 800;
  line-height: 1.18;
  letter-spacing: -0.01em;
}

p { margin: 0 0 1em; }

ul, ol { margin: 0 0 1em; padding-left: 1.15em; }

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

button { font: inherit; }

hr { border: 0; }

::selection { background: var(--cyan); color: var(--night); }

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

[id] { scroll-margin-top: 88px; }

#main-content:focus { outline: none; }

/* ---------- 变量 ---------- */
:root {
  --night: #06101F;
  --carbon: #0B1118;
  --console: #111E30;
  --line: #22344F;
  --cyan: #38F2C8;
  --amber: #FFA23A;
  --text: #D9E4F2;
  --muted: #8FA6C4;
  --alert: #FF6B6B;
  --teal: #0E8F78;
  --paper: #F4F8FD;

  --sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans CJK SC", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --serif: "Songti SC", "Source Han Serif SC", "Noto Serif CJK SC", Georgia, "Times New Roman", serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;

  --wrap: 1320px;
  --gut: clamp(16px, 4vw, 44px);
  --bar-h: 56px;
  --t: 0.22s ease;
}

/* ---------- 排版工具 ---------- */
.mono {
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
}

.serif { font-family: var(--serif); }

.wrap {
  width: 100%;
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 var(--gut);
}

.section { padding: clamp(40px, 6vw, 84px) 0; }
.section--tight { padding: clamp(24px, 3.5vw, 48px) 0; }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 14px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--cyan);
}

.eyebrow::before {
  content: "";
  width: 22px;
  height: 1px;
  background: var(--cyan);
}

.display {
  margin: 0 0 18px;
  font-size: clamp(40px, 9vw, 120px);
  font-weight: 900;
  line-height: 0.92;
  letter-spacing: -0.02em;
  color: var(--paper);
}

.lede {
  max-width: 62ch;
  font-size: clamp(16px, 1.5vw, 19px);
  line-height: 1.7;
  color: var(--muted);
}

.rule {
  height: 1px;
  margin: 0;
  background: var(--line);
}

.line-label {
  display: flex;
  align-items: center;
  gap: 14px;
  margin: 0 0 16px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
}

.line-label::after {
  content: "";
  flex: 1 1 auto;
  height: 1px;
  background: var(--line);
}

.link {
  color: var(--text);
  background-image: linear-gradient(var(--cyan), var(--cyan));
  background-repeat: no-repeat;
  background-size: 100% 1px;
  background-position: 0 100%;
  transition: color var(--t), background-size var(--t);
}

.link:hover { color: var(--cyan); }

/* ---------- 网格 ---------- */
.grid--12 {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: clamp(16px, 2.4vw, 32px);
}

.grid--12 > * { grid-column: 1 / -1; }

@media (min-width: 820px) {
  .span-3 { grid-column: span 3; }
  .span-4 { grid-column: span 4; }
  .span-5 { grid-column: span 5; }
  .span-6 { grid-column: span 6; }
  .span-7 { grid-column: span 7; }
  .span-8 { grid-column: span 8; }
  .span-9 { grid-column: span 9; }
  .span-12 { grid-column: span 12; }
}

/* ---------- 数据组件 ---------- */
.panel {
  padding: clamp(18px, 2.4vw, 28px);
  background: var(--console);
  border: 1px solid var(--line);
}

.panel__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  margin: 0 0 14px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line);
}

.stat {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.stat__num {
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(32px, 5vw, 64px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--cyan);
}

.stat__num--amber { color: var(--amber); }

.stat__label {
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 8px;
  border: 1px solid var(--line);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}

.tag--cyan { color: var(--cyan); border-color: rgba(56, 242, 200, 0.5); }
.tag--amber { color: var(--amber); border-color: rgba(255, 162, 58, 0.5); }

.tbl {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}

.tbl caption {
  padding-bottom: 10px;
  text-align: left;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
}

.tbl th,
.tbl td {
  padding: 11px 12px;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--line);
}

.tbl thead th {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--cyan);
}

.tbl tbody tr:nth-child(odd) { background: rgba(17, 30, 48, 0.55); }
.tbl tbody tr:hover { background: rgba(56, 242, 200, 0.06); }

.tbl td.num {
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
  color: var(--paper);
}

.callout {
  padding: 16px 18px;
  border-left: 3px solid var(--amber);
  background: rgba(255, 162, 58, 0.07);
  color: var(--text);
}

.callout--cyan {
  border-left-color: var(--cyan);
  background: rgba(56, 242, 200, 0.07);
}

/* ---------- 折叠与筛选 ---------- */
.accordion { border-top: 1px solid var(--line); }

.accordion__item { border-bottom: 1px solid var(--line); }

.accordion__item summary {
  position: relative;
  padding: 16px 36px 16px 0;
  list-style: none;
  cursor: pointer;
  font-weight: 600;
  color: var(--paper);
  transition: color var(--t);
}

.accordion__item summary::-webkit-details-marker { display: none; }

.accordion__item summary::after {
  content: "";
  position: absolute;
  right: 10px;
  top: 50%;
  width: 10px;
  height: 10px;
  border-right: 1px solid var(--cyan);
  border-bottom: 1px solid var(--cyan);
  transform: translateY(-70%) rotate(45deg);
  transition: transform var(--t);
}

.accordion__item[open] summary::after { transform: translateY(-30%) rotate(-135deg); }

.accordion__item summary:hover { color: var(--cyan); }

.accordion__body {
  padding: 0 0 18px;
  font-size: 15px;
  color: var(--muted);
}

.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  border: 0;
}

.chip {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  border: 1px solid var(--line);
  background: transparent;
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--muted);
  cursor: pointer;
  transition: border-color var(--t), color var(--t), background-color var(--t);
}

.chip input {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: 0;
  opacity: 0;
  pointer-events: none;
}

.chip:hover { border-color: var(--cyan); color: var(--text); }

.chip:focus-within,
.chip:has(input:focus-visible) {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

.chip:has(input:checked) {
  border-color: var(--cyan);
  background: rgba(56, 242, 200, 0.1);
  color: var(--paper);
}

.chip input:checked + .chip__text { color: var(--paper); }

.chip__text { color: inherit; }

/* ---------- 图片容器基础 ---------- */
.media {
  position: relative;
  display: block;
  overflow: hidden;
  background: var(--console);
  border: 1px solid var(--line);
}

.media > img,
.media > picture > img,
.media > svg {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.media--wide { aspect-ratio: 16 / 9; }
.media--band { aspect-ratio: 21 / 9; }
.media--tall { aspect-ratio: 3 / 4; }
.media--square { aspect-ratio: 1 / 1; }

.media__overlay {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(180deg, rgba(6, 16, 31, 0) 42%, rgba(6, 16, 31, 0.78));
}

.media__caption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 10px 12px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--text);
  background: linear-gradient(to top, rgba(6, 16, 31, 0.92), rgba(6, 16, 31, 0));
}

@media (max-width: 520px) {
  .media--wide { aspect-ratio: 4 / 3; }
}

/* ---------- 面包屑 ---------- */
.crumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0 0 18px;
  padding: 0;
  list-style: none;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
}

.crumbs__item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.crumbs__item + .crumbs__item::before {
  content: "/";
  color: var(--line);
}

.crumbs__item[aria-current="page"] { color: var(--cyan); }

.crumbs__link { color: var(--muted); transition: color var(--t); }
.crumbs__link:hover { color: var(--cyan); }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 34px;
  padding: 0 14px;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--text);
  font-family: var(--sans);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.06em;
  white-space: nowrap;
  cursor: pointer;
  transition: background-color var(--t), color var(--t), border-color var(--t);
}

.btn--accent {
  border-color: var(--amber);
  background: var(--amber);
  color: #1C1002;
}

.btn--accent:hover {
  background: transparent;
  color: var(--amber);
}

.btn--solid {
  border-color: var(--cyan);
  background: var(--cyan);
  color: #04160F;
}

.btn--solid:hover {
  background: transparent;
  color: var(--cyan);
}

.btn--ghost:hover {
  border-color: var(--cyan);
  color: var(--cyan);
}

/* ============================================================
   头部命令栏
   ============================================================ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 60;
  background: rgba(6, 16, 31, 0.94);
  border-bottom: 1px solid var(--line);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
}

.skip-link {
  position: absolute;
  left: 10px;
  top: -64px;
  z-index: 80;
  padding: 10px 16px;
  background: var(--cyan);
  color: #04160F;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.06em;
  transition: top var(--t);
}

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

.cmd {
  position: relative;
  display: flex;
  align-items: center;
  gap: clamp(12px, 2vw, 28px);
  max-width: var(--wrap);
  height: var(--bar-h);
  margin: 0 auto;
  padding: 0 var(--gut);
}

.cmd__brand {
  display: flex;
  flex: 0 0 auto;
  align-items: center;
  gap: 12px;
  min-width: 0;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.brand__mark {
  padding: 3px 6px;
  background: var(--cyan);
  color: var(--night);
  font-family: var(--mono);
  font-size: 13px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: 0.08em;
  transition: background-color var(--t), color var(--t);
}

.brand__name {
  color: var(--paper);
  font-size: 15px;
  font-weight: 800;
  letter-spacing: 0.06em;
}

.brand:hover .brand__mark {
  background: var(--paper);
  color: var(--night);
}

.brand__status {
  display: none;
  align-items: center;
  gap: 7px;
  padding-left: 12px;
  border-left: 1px solid var(--line);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}

@media (min-width: 1200px) {
  .brand__status { display: inline-flex; }
}

.status-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--amber);
  animation: status-pulse 2.4s ease-in-out infinite;
}

@keyframes status-pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(255, 162, 58, 0.55); opacity: 1; }
  50% { box-shadow: 0 0 0 5px rgba(255, 162, 58, 0); opacity: 0.72; }
}

/* 导航 */
.cmd__nav {
  flex: 1 1 auto;
  min-width: 0;
}

.cmd__list {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: clamp(10px, 1.6vw, 26px);
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: nav-index;
}

.cmd__link {
  position: relative;
  display: inline-flex;
  align-items: center;
  padding: 6px 2px;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--muted);
  transition: color var(--t);
}

.cmd__link::before {
  counter-increment: nav-index;
  content: "0" counter(nav-index);
  margin-right: 6px;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  color: var(--line);
  transition: color var(--t);
}

.cmd__link::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 1px;
  background: var(--cyan);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform var(--t);
}

.cmd__link:hover { color: var(--paper); }
.cmd__link:hover::before { color: var(--cyan); }
.cmd__link:hover::after { transform: scaleX(1); }

.cmd__link[aria-current="page"] { color: var(--paper); }
.cmd__link[aria-current="page"]::before { color: var(--cyan); }
.cmd__link[aria-current="page"]::after { transform: scaleX(1); }

/* 工具区 */
.cmd__tools {
  display: flex;
  flex: 0 0 auto;
  align-items: center;
  gap: 10px;
}

.cmd-date {
  display: none;
  align-items: center;
  gap: 8px;
  height: 34px;
  padding: 0 10px;
  border: 1px solid var(--line);
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--muted);
  transition: border-color var(--t), color var(--t);
}

@media (min-width: 1280px) {
  .cmd-date { display: inline-flex; }
}

.cmd-date__label {
  font-family: var(--sans);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--muted);
}

.cmd-date__value {
  color: var(--text);
  font-variant-numeric: tabular-nums;
}

.cmd-date:hover { border-color: var(--cyan); }
.cmd-date:hover .cmd-date__value { color: var(--cyan); }

.nav-toggle {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  height: 34px;
  padding: 0 10px;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--text);
  font-size: 12px;
  letter-spacing: 0.1em;
  cursor: pointer;
  transition: border-color var(--t), color var(--t);
}

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

.nav-toggle__bars {
  position: relative;
  display: block;
  width: 16px;
  height: 10px;
}

.nav-toggle__bars::before,
.nav-toggle__bars::after {
  content: "";
  position: absolute;
  left: 0;
  width: 16px;
  height: 1.5px;
  background: currentColor;
  transition: transform var(--t), top var(--t);
}

.nav-toggle__bars::before { top: 0; }
.nav-toggle__bars::after { top: 8px; }

.nav-toggle[aria-expanded="true"] .nav-toggle__bars::before {
  transform: translateY(4px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bars::after {
  transform: translateY(-4px) rotate(-45deg);
}

.nav-toggle__text { line-height: 1; }

/* 滚动进度线 */
.cmd-progress {
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 2px;
  overflow: hidden;
  pointer-events: none;
}

.cmd-progress__bar {
  display: block;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, var(--cyan), var(--amber));
  transform: scaleX(0);
  transform-origin: 0 50%;
  transition: transform 0.12s linear;
}

/* 移动端导航 */
@media (max-width: 1023.98px) {
  .cmd__nav {
    position: absolute;
    left: 0;
    right: 0;
    top: 100%;
    display: none;
    max-height: calc(100vh - var(--bar-h));
    overflow-y: auto;
    padding: 6px var(--gut) 16px;
    background: var(--carbon);
    border-bottom: 1px solid var(--line);
  }

  .cmd__nav[data-open] { display: block; }

  .cmd__list {
    flex-direction: column;
    align-items: stretch;
    justify-content: flex-start;
    gap: 0;
  }

  .cmd__list li + li { border-top: 1px solid var(--line); }

  .cmd__link {
    width: 100%;
    padding: 14px 4px;
    font-size: 16px;
  }

  .cmd__link::after { display: none; }

  .cmd__link[aria-current="page"] {
    padding-left: 14px;
    border-left: 3px solid var(--cyan);
    color: var(--cyan);
  }
}

@media (min-width: 1024px) {
  .nav-toggle { display: none; }
}

/* ============================================================
   页脚信息带
   ============================================================ */
.site-footer {
  margin-top: clamp(48px, 8vw, 110px);
  background: var(--carbon);
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 13px;
}

.foot {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: clamp(28px, 4vw, 44px) var(--gut) clamp(18px, 3vw, 26px);
}

.foot__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(20px, 3vw, 40px);
}

@media (min-width: 760px) {
  .foot__grid { grid-template-columns: 1.4fr 1fr 1.3fr; }
}

.foot__col { min-width: 0; }

.foot__brand {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 10px;
  color: var(--paper);
  font-size: 15px;
  font-weight: 800;
  letter-spacing: 0.06em;
}

.foot__mark {
  padding: 3px 6px;
  background: var(--cyan);
  color: var(--night);
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: 0.08em;
}

.foot__tagline {
  max-width: 34ch;
  margin: 0 0 14px;
  font-size: 13px;
  color: var(--muted);
}

.foot__meta {
  margin: 0;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--muted);
}

.foot__heading {
  margin: 0 0 12px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--cyan);
}

.foot__list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.foot__link {
  color: var(--text);
  font-size: 13px;
  background-image: linear-gradient(var(--cyan), var(--cyan));
  background-repeat: no-repeat;
  background-size: 0 1px;
  background-position: 0 100%;
  transition: color var(--t), background-size var(--t);
}

.foot__link:hover {
  color: var(--cyan);
  background-size: 100% 1px;
}

.foot__contact {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.foot__contact li {
  position: relative;
  padding-left: 14px;
  font-size: 13px;
  color: var(--text);
  word-break: break-word;
}

.foot__contact li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 6px;
  height: 1px;
  background: var(--amber);
}

.foot__bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 8px 20px;
  margin-top: clamp(20px, 3vw, 30px);
  padding-top: 14px;
  border-top: 1px solid var(--line);
  font-size: 12px;
  color: var(--muted);
}

.foot__note {
  margin: 0;
  font-family: var(--mono);
  letter-spacing: 0.04em;
}

/* ============================================================
   无障碍与偏好
   ============================================================ */
@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;
    scroll-behavior: auto !important;
  }

  .status-dot { animation: none; }
}