/* ============================================================
   KOK体育主站 · 共享样式表 /assets/site.css
   夜赛深蓝底 + 青海湖青绿数据流 + 计时器橙红热点
   ============================================================ */

:root {
  --night: #0A1330;
  --panel: #13204A;
  --panel-deep: #0C1838;
  --teal: #17C3A2;
  --teal-soft: #7FE6D2;
  --ember: #FF5A2B;
  --ember-soft: #FFB08C;
  --snow: #F4F7FB;
  --mist: #A9B4C9;
  --rule: #5C6884;
  --violet: #5B4BE0;

  --shell: 1180px;
  --gutter: 24px;
  --cut: 18px;
  --ease: cubic-bezier(.22, .61, .36, 1);

  --font-sans: "Noto Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-mono: "JetBrains Mono", "Berkeley Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, "Courier New", monospace;
}

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

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

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.75;
  font-weight: 400;
  color: var(--mist);
  background-color: var(--night);
  background-image:
    radial-gradient(880px 520px at 84% -6%, rgba(23, 195, 162, .16), transparent 62%),
    radial-gradient(760px 480px at 2% 2%, rgba(91, 75, 224, .18), transparent 66%),
    repeating-linear-gradient(115deg, rgba(244, 247, 251, .028) 0 1px, transparent 1px 46px);
  background-attachment: fixed;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img,
svg,
picture { max-width: 100%; }

ul,
ol { margin: 0 0 1.1em; padding-left: 1.2em; }

/* ---------- 中文排版 ---------- */
h1, h2, h3, h4 {
  margin: 0 0 .6em;
  color: var(--snow);
  font-weight: 700;
  line-height: 1.32;
  letter-spacing: -.012em;
}
h1 { font-size: clamp(1.85rem, 4.2vw, 2.85rem); }
h2 { font-size: clamp(1.45rem, 3vw, 2.05rem); }
h3 { font-size: 1.15rem; }
h4 { font-size: 1rem; }

p { margin: 0 0 1.1em; }

a {
  color: var(--teal-soft);
  text-decoration: none;
  transition: color .18s var(--ease);
}
a:hover { color: var(--snow); }

strong, b { color: var(--snow); font-weight: 700; }

code, kbd, samp {
  font-family: var(--font-mono);
  font-size: .88em;
  color: var(--teal-soft);
}

hr {
  height: 1px;
  border: 0;
  margin: clamp(24px, 4vw, 40px) 0;
  background: linear-gradient(90deg, rgba(92, 104, 132, .6), rgba(92, 104, 132, 0));
}

::selection { background: rgba(23, 195, 162, .32); color: var(--snow); }

/* ---------- 焦点 ---------- */
:focus-visible {
  outline: 2px solid var(--teal-soft);
  outline-offset: 3px;
  border-radius: 2px;
}

/* ---------- 工具类 ---------- */
.shell {
  width: min(100% - (var(--gutter) * 2), var(--shell));
  margin-inline: auto;
}
.shell--narrow { width: min(100% - (var(--gutter) * 2), 760px); }

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

.num,
[data-num] {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-weight: 800;
  letter-spacing: -.02em;
}

.skip-link {
  position: absolute;
  top: 10px; left: 10px;
  z-index: 200;
  padding: 10px 18px;
  background: var(--ember);
  color: #1A0A03;
  font-family: var(--font-mono);
  font-size: .78rem;
  font-weight: 800;
  letter-spacing: .08em;
  transform: translateY(-190%);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 10px), calc(100% - 10px) 100%, 0 100%);
  transition: transform .2s var(--ease);
}
.skip-link:focus { transform: none; color: #1A0A03; }

/* ============================================================
   头部
   ============================================================ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 90;
  background: rgba(10, 19, 48, .92);
  border-bottom: 1px solid rgba(92, 104, 132, .32);
  backdrop-filter: saturate(150%) blur(12px);
  -webkit-backdrop-filter: saturate(150%) blur(12px);
}

.header-inner {
  width: min(100% - (var(--gutter) * 2), var(--shell));
  margin-inline: auto;
  display: flex;
  align-items: center;
  gap: clamp(12px, 2.4vw, 32px);
  min-height: 72px;
}

.brand {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--snow);
}
.brand:hover { color: var(--snow); }

.brand-mark {
  position: relative;
  flex: 0 0 auto;
  width: 26px; height: 26px;
  background: linear-gradient(140deg, var(--teal) 0%, var(--teal-soft) 46%, var(--violet) 100%);
  clip-path: polygon(0 0, 100% 0, 100% 64%, 64% 100%, 0 100%);
}
.brand-mark::after {
  content: "";
  position: absolute;
  top: -2px; right: -2px;
  width: 9px; height: 9px;
  border-radius: 50%;
  background: var(--ember);
  box-shadow: 0 0 0 3px rgba(255, 90, 43, .22);
  animation: breathe 3s ease-in-out infinite;
}

.brand-text { display: flex; flex-direction: column; line-height: 1.15; }
.brand-name {
  font-family: var(--font-mono);
  font-size: .98rem;
  font-weight: 800;
  letter-spacing: .02em;
  color: var(--snow);
}
.brand-sub {
  font-size: .66rem;
  letter-spacing: .2em;
  color: var(--rule);
}

.score-ticker {
  flex: 1 1 auto;
  min-width: 0;
  margin: 0;
  display: flex;
  align-items: center;
  gap: 10px;
  overflow: hidden;
  white-space: nowrap;
  font-family: var(--font-mono);
  font-size: .76rem;
  letter-spacing: .06em;
  color: var(--mist);
}
.ticker-dot {
  flex: 0 0 auto;
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--ember);
  animation: breathe 3s ease-in-out infinite;
}
.ticker-item { display: inline-flex; align-items: center; gap: 5px; }
.ticker-num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: .95rem;
  font-weight: 800;
  color: var(--ember);
}
.ticker-time {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-weight: 800;
  color: var(--teal-soft);
}
.ticker-sep {
  flex: 0 0 auto;
  width: 1px; height: 12px;
  background: rgba(92, 104, 132, .7);
}

.site-nav { flex: 0 0 auto; }
.site-nav__list {
  display: flex;
  align-items: center;
  gap: 2px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.site-nav a {
  display: block;
  padding: 10px 12px;
  color: var(--mist);
  font-size: .9rem;
  white-space: nowrap;
  border-bottom: 2px solid transparent;
  transition: color .18s var(--ease), border-color .18s var(--ease);
}
.site-nav a:hover {
  color: var(--snow);
  border-bottom-color: rgba(23, 195, 162, .45);
}
.site-nav a[aria-current="page"] {
  color: var(--snow);
  font-weight: 700;
  border-bottom-color: var(--teal);
}

.nav-toggle {
  display: none;
  align-items: center;
  gap: 9px;
  margin-left: auto;
  padding: 9px 12px;
  background: transparent;
  border: 1px solid rgba(92, 104, 132, .5);
  border-radius: 2px;
  color: var(--mist);
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .14em;
  cursor: pointer;
  transition: color .18s var(--ease), border-color .18s var(--ease);
}
.nav-toggle:hover { color: var(--snow); border-color: var(--teal); }
.nav-toggle__bars {
  position: relative;
  display: block;
  width: 16px; height: 2px;
  background: var(--teal);
}
.nav-toggle__bars::before,
.nav-toggle__bars::after {
  content: "";
  position: absolute;
  left: 0;
  width: 16px; height: 2px;
  background: var(--teal);
}
.nav-toggle__bars::before { top: -5px; }
.nav-toggle__bars::after { top: 5px; }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars,
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::before,
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::after { background: var(--ember-soft); }

.header-track {
  height: 4px;
  background: rgba(92, 104, 132, .22);
  overflow: hidden;
}
.header-track__bar {
  display: block;
  width: 100%; height: 100%;
  transform: scaleX(0);
  transform-origin: 0 50%;
  background: linear-gradient(90deg, var(--teal), var(--teal-soft) 56%, var(--ember));
  transition: transform .12s linear;
}

/* ============================================================
   页脚
   ============================================================ */
.site-footer {
  margin-top: clamp(56px, 9vw, 110px);
  padding: clamp(30px, 5vw, 54px) 0 28px;
  background: linear-gradient(180deg, rgba(19, 32, 74, 0) 0%, rgba(19, 32, 74, .72) 26%, #0B1430 100%);
  border-top: 1px solid rgba(92, 104, 132, .3);
}

.cost-bar {
  position: relative;
  background: linear-gradient(120deg, rgba(19, 32, 74, .96), rgba(11, 20, 48, .96));
  border: 1px solid rgba(23, 195, 162, .3);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--cut)), calc(100% - var(--cut)) 100%, 0 100%);
}
.cost-bar::before {
  content: "";
  position: absolute;
  top: 0; bottom: 0; left: 0;
  width: 4px;
  background: linear-gradient(180deg, var(--teal), var(--ember));
}
.cost-bar__toggle {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 22px 16px 26px;
  background: none;
  border: 0;
  cursor: pointer;
  color: var(--snow);
  font-family: var(--font-sans);
  font-size: .95rem;
  font-weight: 700;
  text-align: left;
}
.cost-bar__label { display: inline-flex; align-items: center; gap: 10px; }
.cost-bar__label::before {
  content: "";
  flex: 0 0 auto;
  width: 9px; height: 9px;
  background: var(--ember);
  clip-path: polygon(0 0, 100% 0, 100% 100%, 50% 72%, 0 100%);
}
.cost-bar__hint {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .14em;
  color: var(--teal-soft);
  transition: color .18s var(--ease);
}
.cost-bar__toggle:hover .cost-bar__hint { color: var(--snow); }
.cost-bar__toggle[aria-expanded="true"] .cost-bar__hint { color: var(--ember-soft); }

.cost-panel {
  padding: 0 22px 20px 26px;
  animation: panel-in .26s var(--ease);
}
.cost-panel[hidden] { display: none; }
.cost-panel__list {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}
@media (min-width: 760px) {
  .cost-panel__list { grid-template-columns: repeat(3, 1fr); }
}
.cost-panel__list li {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 12px 14px;
  background: rgba(10, 19, 48, .66);
  border-left: 2px solid rgba(23, 195, 162, .5);
  font-size: .86rem;
  line-height: 1.6;
  color: var(--mist);
}
.cost-panel__key {
  font-family: var(--font-mono);
  font-size: .68rem;
  letter-spacing: .16em;
  color: var(--teal-soft);
}

.footer-grid {
  display: grid;
  gap: 26px;
  margin-top: clamp(26px, 4vw, 44px);
  padding-bottom: 24px;
  border-bottom: 1px solid rgba(92, 104, 132, .26);
}
@media (min-width: 720px) {
  .footer-grid { grid-template-columns: 1.05fr 1.15fr 1fr; }
}
.footer-col {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  min-width: 0;
}
.footer-brand {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 1rem;
  font-weight: 800;
  letter-spacing: .02em;
  color: var(--snow);
}
.footer-line {
  margin: 0 0 8px;
  font-size: .84rem;
  line-height: 1.7;
  color: var(--mist);
  overflow-wrap: anywhere;
}
.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
  margin: 0 0 12px;
  padding: 0;
  list-style: none;
}
.footer-links a {
  padding-bottom: 2px;
  color: var(--mist);
  font-size: .86rem;
  border-bottom: 1px solid rgba(92, 104, 132, .5);
}
.footer-links a:hover {
  color: var(--teal-soft);
  border-bottom-color: var(--teal);
}
.footer-note { color: var(--rule); font-size: .78rem; }
.footer-meta {
  margin: 18px 0 0;
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .06em;
  color: var(--rule);
}

/* ============================================================
   通用组件
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 22px;
  background: var(--ember);
  color: #1A0A03;
  font-family: var(--font-mono);
  font-size: .8rem;
  font-weight: 800;
  letter-spacing: .06em;
  text-decoration: none;
  border: 1px solid transparent;
  border-radius: 2px;
  cursor: pointer;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 10px), calc(100% - 10px) 100%, 0 100%);
  transition: transform .18s var(--ease), background .18s var(--ease), color .18s var(--ease), border-color .18s var(--ease);
}
.btn:hover { background: var(--ember-soft); color: #24100A; transform: translateY(-2px); }
.btn:active { transform: translateY(0); }

.btn--teal { background: var(--teal); color: #04211B; }
.btn--teal:hover { background: var(--teal-soft); color: #04211B; }

.btn--ghost {
  background: transparent;
  color: var(--teal-soft);
  border-color: rgba(23, 195, 162, .55);
}
.btn--ghost:hover {
  background: rgba(23, 195, 162, .14);
  color: var(--snow);
  border-color: var(--teal);
}

.btn--sm { padding: 9px 16px; font-size: .72rem; }

.breadcrumb { margin: 0 0 clamp(18px, 3vw, 30px); }
.breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0 10px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: .7rem;
  letter-spacing: .14em;
  color: var(--rule);
}
.breadcrumb__list li { display: flex; align-items: center; gap: 10px; }
.breadcrumb__list li + li::before {
  content: "";
  display: block;
  width: 14px; height: 1px;
  background: var(--rule);
}
.breadcrumb a { color: var(--mist); }
.breadcrumb a:hover { color: var(--teal-soft); }
.breadcrumb [aria-current="page"] { color: var(--teal-soft); }

/* 图片容器基础规则 */
.media-frame {
  position: relative;
  display: block;
  width: 100%;
  margin: 0;
  aspect-ratio: 16 / 10;
  background: linear-gradient(145deg, #16244F 0%, #0B1430 100%);
  border: 1px solid rgba(92, 104, 132, .3);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 22px), calc(100% - 22px) 100%, 0 100%);
  overflow: hidden;
}
.media-frame img {
  display: block;
  width: 100%; height: 100%;
  object-fit: cover;
}
.media-frame--wide { aspect-ratio: 21 / 9; }
.media-frame--tall { aspect-ratio: 4 / 5; }
.media-frame--square { aspect-ratio: 1 / 1; }
.media-frame__caption {
  position: absolute;
  right: 0; bottom: 0; left: 0;
  padding: 14px 18px;
  background: linear-gradient(0deg, rgba(10, 19, 48, .94), rgba(10, 19, 48, 0));
  font-size: .78rem;
  color: var(--mist);
}

.cut-panel {
  position: relative;
  padding: clamp(18px, 2.6vw, 28px);
  background: linear-gradient(150deg, rgba(19, 32, 74, .96), rgba(12, 24, 56, .96));
  border: 1px solid rgba(92, 104, 132, .28);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--cut)), calc(100% - var(--cut)) 100%, 0 100%);
}
.cut-panel--teal { border-color: rgba(23, 195, 162, .42); }
.cut-panel--ember { border-color: rgba(255, 90, 43, .44); }

.note-rail {
  padding: 14px 0 14px 18px;
  border-left: 2px solid rgba(23, 195, 162, .45);
  font-size: .86rem;
  line-height: 1.8;
  color: var(--mist);
}
.note-rail__title {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: .68rem;
  letter-spacing: .18em;
  color: var(--teal-soft);
}

.metric { display: flex; flex-direction: column; gap: 4px; }
.metric__value {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-weight: 800;
  font-size: clamp(1.55rem, 3.4vw, 2.4rem);
  line-height: 1;
  letter-spacing: -.03em;
  color: var(--snow);
}
.metric__value--hot { color: var(--ember); animation: flip-in .24s var(--ease); }
.metric__label {
  font-family: var(--font-mono);
  font-size: .7rem;
  letter-spacing: .14em;
  color: var(--rule);
}

.section-no {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(3rem, 9vw, 7rem);
  font-weight: 800;
  line-height: 1;
  letter-spacing: -.05em;
  color: rgba(244, 247, 251, .1);
}
.section-band {
  display: block;
  width: min(280px, 42%);
  height: 6px;
  margin: 0 0 clamp(16px, 2.4vw, 26px);
  background: linear-gradient(90deg, var(--teal), rgba(23, 195, 162, 0));
}
.section-band--ember { background: linear-gradient(90deg, var(--ember), rgba(255, 90, 43, 0)); }
.section-band--violet { background: linear-gradient(90deg, var(--violet), rgba(91, 75, 224, 0)); }

.filter-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0 0 clamp(18px, 2.6vw, 26px);
}
.filter-chip {
  padding: 8px 14px;
  background: rgba(19, 32, 74, .7);
  border: 1px solid rgba(92, 104, 132, .42);
  border-radius: 2px;
  color: var(--mist);
  font-family: var(--font-mono);
  font-size: .74rem;
  letter-spacing: .08em;
  cursor: pointer;
  transition: color .18s var(--ease), border-color .18s var(--ease), background .18s var(--ease);
}
.filter-chip:hover { color: var(--snow); border-color: rgba(23, 195, 162, .6); }
.filter-chip[aria-pressed="true"] {
  color: var(--snow);
  border-color: var(--ember);
  background: rgba(255, 90, 43, .14);
}
.filter-count {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: .74rem;
  letter-spacing: .08em;
  color: var(--rule);
}
.filter-count b { color: var(--teal-soft); font-weight: 800; }

[data-filter-item].is-hidden { display: none; }

[data-reveal].reveal-init {
  opacity: 0;
  transform: translate3d(-16px, 0, 0);
  transition: opacity .5s var(--ease), transform .5s var(--ease);
}
[data-reveal].reveal-init.is-in {
  opacity: 1;
  transform: translate3d(0, 0, 0);
}

/* ---------- 动效关键帧 ---------- */
@keyframes breathe {
  0%, 100% { opacity: .4; transform: scale(.82); }
  50% { opacity: 1; transform: scale(1.12); }
}
@keyframes flip-in {
  from { opacity: 0; transform: translateY(-40%) rotateX(-60deg); }
  to { opacity: 1; transform: none; }
}
@keyframes panel-in {
  from { opacity: 0; transform: translateY(-6px); }
  to { opacity: 1; transform: none; }
}
@keyframes pulse-flow {
  to { stroke-dashoffset: -40; }
}
@keyframes sweep {
  from { transform: translateX(-100%); }
  to { transform: translateX(100%); }
}

.data-pulse {
  stroke-dasharray: 6 14;
  animation: pulse-flow 2.4s linear infinite;
}

/* ============================================================
   响应式
   ============================================================ */
@media (max-width: 1024px) {
  :root { --gutter: 20px; }
  .site-nav a { padding: 10px 9px; font-size: .85rem; }
}

@media (max-width: 940px) {
  .header-inner { min-height: 64px; }
  .score-ticker { display: none; }
  .nav-toggle { display: inline-flex; }

  .site-nav {
    position: absolute;
    top: 100%;
    right: 0;
    left: 0;
    background: #0B1430;
    border-top: 1px solid rgba(92, 104, 132, .3);
    border-bottom: 1px solid rgba(23, 195, 162, .35);
    max-height: 0;
    overflow: hidden;
    visibility: hidden;
    transition: max-height .3s var(--ease), visibility .3s var(--ease);
  }
  .site-nav[data-open] {
    max-height: min(74vh, 540px);
    overflow-y: auto;
    visibility: visible;
  }
  .site-nav__list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 6px 0;
  }
  .site-nav a {
    padding: 14px 24px;
    font-size: .98rem;
    border-bottom: 1px solid rgba(92, 104, 132, .16);
    border-left: 3px solid transparent;
  }
  .site-nav a:hover { border-bottom-color: rgba(92, 104, 132, .16); }
  .site-nav a[aria-current="page"] {
    background: rgba(23, 195, 162, .08);
    border-left-color: var(--teal);
    border-bottom-color: rgba(92, 104, 132, .16);
  }
}

@media (max-width: 560px) {
  :root { --gutter: 16px; --cut: 14px; }
  body { font-size: 15.5px; }
  .brand-sub { display: none; }
  .cost-bar__toggle { padding: 14px 16px 14px 20px; font-size: .9rem; }
  .cost-panel { padding: 0 16px 18px 20px; }
  .footer-meta { font-size: .68rem; }
}

/* ---------- 减少动态 ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *,
  *::before,
  *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
  }
  [data-reveal].reveal-init,
  [data-reveal].reveal-init.is-in {
    opacity: 1;
    transform: none;
  }
  .header-track__bar { transition: none; }
}