/* ============ 基础与变量 ============ */
*, *::before, *::after { box-sizing: border-box; }
html {
  margin: 0;
  padding: 0;
  scroll-behavior: smooth;
  scrollbar-width: thin;
  scrollbar-color: var(--line-light) var(--abyss);
  -webkit-tap-highlight-color: rgba(0,255,136,.14);
}
:root {
  --deep-night: #0A0E27;
  --abyss: #070A1A;
  --night-blue: #111730;
  --line-light: #1E2A4A;
  --fluorescent-green: #00FF88;
  --alert-orange: #FF6A00;
  --text-white: #F2F5FF;
  --text-dim: #A0A8C0;
  --data-red: #FF3B5C;
  --data-yellow: #FFC600;
  --font-heading: "DIN Alternate", Bahnschrift, Impact, "Microsoft YaHei", sans-serif;
  --font-body: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-mono: "Roboto Mono", Consolas, "Courier New", monospace;
  --content-max: 1200px;
  --sidebar-w: 200px;
  --sidebar-w-min: 56px;
}
body {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  margin: 0;
  padding: 0;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.75;
  color: var(--text-white);
  background-color: var(--abyss);
  background-image:
    repeating-linear-gradient(0deg, rgba(30,42,74,.10) 0 1px, transparent 1px 64px),
    repeating-linear-gradient(90deg, rgba(30,42,74,.10) 0 1px, transparent 1px 64px),
    radial-gradient(ellipse 70% 42% at 85% -5%, rgba(0,255,136,.07), transparent 70%),
    radial-gradient(ellipse 45% 32% at 0% 30%, rgba(255,106,0,.05), transparent 70%),
    linear-gradient(180deg, var(--deep-night), var(--abyss) 70%);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
h1, h2, h3, h4 {
  font-family: var(--font-heading);
  color: var(--text-white);
  line-height: 1.2;
  margin: 0 0 14px;
  letter-spacing: .01em;
  font-weight: 800;
}
h1 { font-size: clamp(2rem, 4vw, 3.1rem); }
h2 { font-size: clamp(1.4rem, 2.7vw, 2.1rem); }
h3 { font-size: 1.25rem; }
p { margin: 0 0 16px; }
a {
  color: var(--fluorescent-green);
  text-decoration: underline;
  text-underline-offset: 3px;
}
a:hover { color: var(--text-white); }
ul, ol { padding-left: 1.4em; margin: 0 0 16px; }
img { max-width: 100%; height: auto; display: block; }
::selection { background: var(--fluorescent-green); color: var(--deep-night); }
:focus-visible { outline: 2px solid var(--fluorescent-green); outline-offset: 3px; border-radius: 0; }
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: var(--abyss); }
::-webkit-scrollbar-thumb { background: var(--line-light); border: 2px solid var(--abyss); }
::-webkit-scrollbar-thumb:hover { background: var(--fluorescent-green); }
main, section[id] { scroll-margin-top: 72px; }

/* ============ 无障碍与工具类 ============ */
.visually-hidden {
  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;
}
.skip-link {
  position: absolute;
  left: 16px;
  top: -64px;
  z-index: 300;
  padding: 12px 18px;
  background: var(--fluorescent-green);
  color: var(--deep-night);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 14px;
  text-decoration: none;
  transition: top .18s ease;
}
.skip-link:focus-visible {
  top: 16px;
  outline: none;
  box-shadow: 0 0 0 3px var(--deep-night), 0 0 0 7px var(--fluorescent-green);
}

/* ============ 头部 ============ */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--fluorescent-green), var(--alert-orange));
  transform: scaleX(0);
  transform-origin: 0 50%;
  box-shadow: 0 0 12px rgba(0,255,136,.45);
  z-index: 400;
  pointer-events: none;
}
.site-header {
  position: relative;
  z-index: 100;
  background: linear-gradient(180deg, rgba(10,14,39,.98), rgba(7,10,26,.94));
  border-bottom: 1px solid var(--line-light);
}
.site-header::before,
.site-header::after {
  content: "";
  position: absolute;
  bottom: -1px;
  height: 2px;
  z-index: 2;
}
.site-header::before {
  left: 0;
  width: 140px;
  background: var(--fluorescent-green);
  opacity: .8;
}
.site-header::after {
  right: 0;
  width: 90px;
  background: var(--alert-orange);
  opacity: .65;
}
.masthead {
  position: relative;
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 34px 32px 22px;
  text-align: center;
}
.masthead::after {
  content: "MATCH-DAY OWL | 实时数据 · 覆盖 120+ 联赛";
  display: block;
  margin-top: 14px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .22em;
  color: var(--text-dim);
}
.brand {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  text-decoration: none;
  color: inherit;
}
.brand:hover { color: inherit; }
.brand-text { text-align: center; }
.brand-name {
  display: block;
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: clamp(1.7rem, 3vw, 2.5rem);
  line-height: 1.1;
  letter-spacing: .1em;
  color: var(--text-white);
  text-shadow: 0 0 28px rgba(0,255,136,.18);
  white-space: nowrap;
}
.brand-slogan {
  display: block;
  margin-top: 7px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .24em;
  text-transform: uppercase;
  color: var(--fluorescent-green);
  white-space: nowrap;
}
.brand-mark {
  position: relative;
  display: inline-block;
  flex: 0 0 auto;
  width: 3em;
  height: 3em;
  font-size: 16px;
}
.brand-mark-small { font-size: 13px; }
.owl-body {
  position: absolute;
  left: .35em;
  right: .35em;
  top: .5em;
  bottom: .12em;
  z-index: 1;
  background: radial-gradient(circle at 40% 30%, #17203f, var(--deep-night) 72%);
  border: 2px solid var(--fluorescent-green);
  border-radius: 50% 50% 46% 46% / 54% 54% 46% 46%;
  box-shadow: 0 0 14px rgba(0,255,136,.32), inset 0 0 12px rgba(0,255,136,.12);
}
.owl-body::before,
.owl-body::after {
  content: "";
  position: absolute;
  top: -.5em;
  z-index: 0;
  width: .9em;
  height: .95em;
  background: var(--deep-night);
  border: 2px solid var(--fluorescent-green);
}
.owl-body::before {
  left: .12em;
  border-radius: 70% 20% 60% 50%;
  transform: rotate(-26deg);
}
.owl-body::after {
  right: .12em;
  border-radius: 20% 70% 50% 60%;
  transform: rotate(26deg);
}
.owl-eye {
  position: absolute;
  top: .9em;
  z-index: 2;
  width: .9em;
  height: .9em;
  background: var(--fluorescent-green);
  border-radius: 50%;
  box-shadow: 0 0 10px rgba(0,255,136,.65);
}
.owl-eye::after {
  content: "";
  position: absolute;
  top: .3em;
  left: .3em;
  width: .28em;
  height: .28em;
  background: var(--deep-night);
  border-radius: 50%;
}
.owl-eye-left { left: .48em; }
.owl-eye-right { right: .48em; }
.owl-beak {
  position: absolute;
  top: 1.7em;
  left: 50%;
  z-index: 2;
  width: 0;
  height: 0;
  margin-left: -.26em;
  border-left: .26em solid transparent;
  border-right: .26em solid transparent;
  border-top: .4em solid var(--alert-orange);
  filter: drop-shadow(0 0 4px rgba(255,106,0,.55));
}
.nav-toggle { display: none; }
.nav-toggle-bar {
  display: block;
  width: 100%;
  height: 2px;
  background: currentColor;
  border-radius: 0;
  transition: transform .18s ease, opacity .18s ease;
}
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ============ 导航侧栏 ============ */
.site-nav {
  display: flex;
  flex-direction: column;
  background:
    repeating-linear-gradient(180deg, rgba(0,255,136,.028) 0 1px, transparent 1px 6px),
    linear-gradient(180deg, rgba(17,23,48,.94), rgba(7,10,26,.96));
  border: 1px solid var(--line-light);
  box-shadow: 0 16px 48px rgba(0,0,0,.4);
}
.nav-eyebrow {
  margin: 0;
  padding: 16px 18px 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .26em;
  color: var(--text-dim);
  border-bottom: 1px solid var(--line-light);
  text-transform: uppercase;
  white-space: nowrap;
}
.nav-list {
  list-style: none;
  margin: 0;
  padding: 12px 10px;
  flex: 1 1 auto;
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.nav-item { margin: 0; }
.nav-link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  color: var(--text-dim);
  font-family: var(--font-heading);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: .08em;
  text-decoration: none;
  border-left: 2px solid transparent;
  transition: background .16s ease, color .16s ease, border-color .16s ease;
}
.nav-link:hover {
  background: rgba(0,255,136,.05);
  color: var(--text-white);
  border-left-color: var(--fluorescent-green);
}
.nav-link:focus-visible { outline-offset: -2px; }
.nav-link[aria-current="page"] {
  background: rgba(0,255,136,.08);
  color: var(--fluorescent-green);
  border-left-color: var(--fluorescent-green);
}
.nav-index {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .06em;
  color: var(--line-light);
  min-width: 22px;
  transition: color .16s ease;
}
.nav-link:hover .nav-index,
.nav-link[aria-current="page"] .nav-index { color: var(--fluorescent-green); }
.nav-label { white-space: nowrap; }
.nav-status {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 0;
  padding: 12px 18px;
  border-top: 1px solid var(--line-light);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .18em;
  color: var(--text-dim);
  white-space: nowrap;
}
.rail-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  align-self: flex-end;
  width: 30px;
  height: 30px;
  margin: 8px 8px 0 0;
  padding: 0;
  background: var(--abyss);
  border: 1px solid var(--line-light);
  color: var(--text-dim);
  cursor: pointer;
  transition: color .16s ease, border-color .16s ease, transform .22s ease;
}
.rail-toggle:hover { color: var(--fluorescent-green); border-color: var(--fluorescent-green); }
.site-nav[data-open="false"] .rail-toggle { transform: rotate(180deg); }
.rail-toggle-line { display: block; width: 9px; height: 2px; background: currentColor; }
.rail-toggle-line:first-child { transform: rotate(28deg) translateX(-1px); }
.rail-toggle-line:last-child { transform: rotate(-28deg) translateX(-1px); }

/* ============ 桌面端侧栏状态 ============ */
@media (min-width: 900px) {
  .site-nav {
    position: fixed;
    top: 26px;
    left: 14px;
    width: var(--sidebar-w);
    z-index: 120;
    border-left: 2px solid var(--line-light);
    transition: width .22s ease, border-color .22s ease;
  }
  .site-nav[data-open="false"] {
    width: var(--sidebar-w-min);
    border-left-color: rgba(0,255,136,.4);
  }
  .site-nav[data-open="false"] .nav-eyebrow,
  .site-nav[data-open="false"] .nav-status,
  .site-nav[data-open="false"] .nav-label { display: none; }
  .site-nav[data-open="false"] .nav-list { align-items: center; padding: 12px 0; }
  .site-nav[data-open="false"] .nav-link { justify-content: center; padding: 13px 0; }
  .site-nav[data-open="false"] .nav-index { font-size: 13px; }
}

/* ============ 移动端 ============ */
@media (max-width: 899px) {
  .site-header { position: sticky; top: 0; }
  .masthead {
    display: grid;
    grid-template-columns: 42px minmax(0, 1fr) 42px;
    align-items: center;
    gap: 8px;
    padding: 10px 14px;
    text-align: left;
  }
  .masthead::after { display: none; }
  .brand {
    grid-column: 2;
    justify-self: center;
    flex-direction: row;
    gap: 10px;
  }
  .brand-text { text-align: left; }
  .brand-mark { font-size: 13px; }
  .brand-name { font-size: 1.25rem; }
  .brand-slogan { display: none; }
  .nav-toggle {
    grid-column: 3;
    justify-self: end;
    display: inline-flex;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 42px;
    height: 42px;
    padding: 10px;
    background: transparent;
    border: 1px solid var(--line-light);
    color: var(--text-white);
    cursor: pointer;
  }
  .nav-toggle:hover { border-color: var(--fluorescent-green); }
  .site-nav {
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    width: min(320px, 85vw);
    padding-top: 74px;
    transform: translateX(-105%);
    transition: transform .22s ease;
    overflow-y: auto;
    z-index: 90;
    border-top: 0;
    border-bottom: 0;
    border-left: 0;
  }
  .site-nav[data-open="true"] { transform: translateX(0); }
  .rail-toggle { display: none; }
  .nav-eyebrow { padding: 14px 20px 12px; }
  .nav-list { padding: 14px; }
  .nav-link { padding: 13px 14px; font-size: 15px; }
  .nav-status { padding: 14px 20px; }
}

/* ============ 页脚 ============ */
.site-footer {
  position: relative;
  overflow: hidden;
  background: linear-gradient(180deg, var(--abyss), #050718);
  border-top: 1px solid var(--line-light);
}
.site-footer::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--fluorescent-green) 0%, transparent 45%, transparent 60%, var(--alert-orange) 100%);
  z-index: 1;
}
.site-footer::after {
  content: "OWL";
  position: absolute;
  right: 20px;
  bottom: 2px;
  font-family: var(--font-heading);
  font-size: 130px;
  font-weight: 800;
  line-height: 1;
  color: rgba(30,42,74,.2);
  pointer-events: none;
  z-index: 0;
}
.footer-grid {
  position: relative;
  z-index: 1;
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 52px 28px 36px;
  display: grid;
  grid-template-columns: 2.2fr 1fr 1fr 1.6fr;
  gap: 36px 40px;
}
.footer-brand { min-width: 0; }
.footer-brand-link {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  text-decoration: none;
  color: inherit;
}
.footer-brand-link:hover { color: inherit; }
.footer-brand-link .brand-name { font-size: 1.35rem; }
.footer-brand-link .brand-slogan { margin-top: 4px; font-size: 10px; }
.footer-brand .brand-text { text-align: left; }
.footer-trust {
  margin: 20px 0 0;
  max-width: 30em;
  padding-left: 14px;
  border-left: 2px solid var(--fluorescent-green);
  font-size: 14px;
  color: var(--text-dim);
  line-height: 1.8;
}
.footer-col { min-width: 0; }
.footer-contact {
  padding-left: 22px;
  border-left: 1px solid rgba(30,42,74,.7);
}
.footer-heading {
  position: relative;
  margin: 0 0 16px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line-light);
  font-family: var(--font-heading);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--text-dim);
}
.footer-heading::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -1px;
  width: 26px;
  height: 2px;
  background: var(--alert-orange);
}
.footer-links {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}
.footer-links a {
  position: relative;
  display: inline-block;
  padding-left: 15px;
  color: var(--text-dim);
  text-decoration: none;
  font-size: 14px;
  transition: color .16s ease, transform .16s ease;
}
.footer-links a::before {
  content: "›";
  position: absolute;
  left: 0;
  color: var(--fluorescent-green);
  font-family: var(--font-mono);
}
.footer-links a:hover {
  color: var(--fluorescent-green);
  transform: translateX(2px);
}
.footer-meta {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 7px;
  font-size: 13px;
  color: var(--text-dim);
}
.footer-bottom {
  position: relative;
  z-index: 1;
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 18px 28px 22px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px 24px;
  border-top: 1px solid rgba(30,42,74,.65);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--text-dim);
}
.footer-copy, .footer-icp { margin: 0; }
@media (max-width: 899px) {
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 28px; }
  .footer-contact { padding-left: 0; border-left: 0; }
}
@media (max-width: 599px) {
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; align-items: flex-start; }
}

/* ============ 正文容器与栅格 ============ */
.site-main {
  flex: 1 0 auto;
  width: 100%;
  min-width: 0;
  padding: 44px 20px 80px;
}
@media (min-width: 900px) {
  .site-main { padding: 56px 40px 96px calc(var(--sidebar-w) + 52px); }
  body:has(.site-nav[data-open="false"]) .site-main { padding-left: calc(var(--sidebar-w-min) + 52px); }
}
.content-shell {
  max-width: var(--content-max);
  margin: 0 auto;
}
.page-head { margin-bottom: 44px; }
.page-title {
  margin: 6px 0 14px;
  font-family: var(--font-heading);
  font-size: clamp(2rem, 4vw, 3rem);
  line-height: 1.12;
  letter-spacing: .02em;
}
.page-lead {
  max-width: 70ch;
  font-size: 17px;
  color: var(--text-dim);
  line-height: 1.9;
}
.section-label {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--alert-orange);
}
.section-title { margin: 0 0 14px; }
.section-desc {
  max-width: 62ch;
  color: var(--text-dim);
  margin: 0 0 28px;
}
.lead {
  font-size: 18px;
  line-height: 1.9;
  color: var(--text-dim);
}
.breadcrumb { margin: 0 0 10px; }
.breadcrumb-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 13px;
  color: var(--text-dim);
}
.breadcrumb-list li + li::before {
  content: "/";
  margin-right: 8px;
  color: var(--line-light);
  font-family: var(--font-mono);
}
.breadcrumb-list a { color: var(--text-dim); text-decoration: none; }
.breadcrumb-list a:hover { color: var(--fluorescent-green); }
.breadcrumb-list [aria-current="page"] { color: var(--text-white); }
.grid {
  display: grid;
  gap: 24px;
  margin: 0 0 8px;
}
.grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
@media (min-width: 640px) {
  .grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .grid-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (min-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}

/* ============ 基础组件 ============ */
.card {
  position: relative;
  display: block;
  min-width: 0;
  padding: 22px 22px 20px;
  background: linear-gradient(160deg, rgba(17,23,48,.95), rgba(7,10,26,.85));
  border: 1px solid var(--line-light);
  color: var(--text-white);
  text-decoration: none;
  transition: border-color .18s ease, background .18s ease, transform .18s ease;
}
.card::before,
.card::after {
  content: "";
  position: absolute;
  width: 12px;
  height: 12px;
  pointer-events: none;
}
.card::before {
  top: -1px;
  left: -1px;
  border-top: 2px solid var(--fluorescent-green);
  border-left: 2px solid var(--fluorescent-green);
}
.card::after {
  bottom: -1px;
  right: -1px;
  border-bottom: 2px solid var(--alert-orange);
  border-right: 2px solid var(--alert-orange);
}
.card:hover {
  border-color: rgba(0,255,136,.55);
  background: linear-gradient(160deg, rgba(30,44,80,.95), rgba(10,14,39,.9));
  transform: translateY(-2px);
}
.card-title {
  font-family: var(--font-heading);
  font-size: 17px;
  margin: 0 0 8px;
  line-height: 1.3;
}
.card-text {
  margin: 0;
  color: var(--text-dim);
  font-size: 14px;
  line-height: 1.7;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 22px;
  background: var(--fluorescent-green);
  border: 1px solid var(--fluorescent-green);
  color: var(--deep-night);
  font-family: var(--font-heading);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: .08em;
  text-decoration: none;
  cursor: pointer;
  transition: background .16s ease, color .16s ease, border-color .16s ease;
}
.btn:hover { background: transparent; color: var(--fluorescent-green); }
.btn-secondary {
  background: transparent;
  color: var(--text-white);
  border-color: var(--line-light);
}
.btn-secondary:hover { border-color: var(--fluorescent-green); color: var(--fluorescent-green); }
.btn-orange {
  background: var(--alert-orange);
  border-color: var(--alert-orange);
  color: var(--deep-night);
}
.btn-orange:hover { background: transparent; color: var(--alert-orange); }
.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 10px;
  border: 1px solid var(--line-light);
  background: var(--abyss);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--text-dim);
  white-space: nowrap;
}
.tag-green { color: var(--fluorescent-green); border-color: rgba(0,255,136,.36); }
.tag-orange { color: var(--alert-orange); border-color: rgba(255,106,0,.36); }
.tag-red { color: var(--data-red); border-color: rgba(255,59,92,.36); }
.tag-yellow { color: var(--data-yellow); border-color: rgba(255,198,0,.36); }
.data-stat {
  font-family: var(--font-mono);
  font-size: 32px;
  font-weight: 700;
  line-height: 1.1;
  color: var(--fluorescent-green);
}
.data-stat-label {
  display: block;
  margin-top: 6px;
  font-family: var(--font-body);
  font-size: 13px;
  color: var(--text-dim);
}
.status-dot {
  display: inline-block;
  flex: 0 0 auto;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--fluorescent-green);
  box-shadow: 0 0 8px rgba(0,255,136,.7);
}
.status-dot-orange { background: var(--alert-orange); box-shadow: 0 0 8px rgba(255,106,0,.7); }
.status-dot-red { background: var(--data-red); box-shadow: 0 0 8px rgba(255,59,92,.7); }
.status-dot-yellow { background: var(--data-yellow); box-shadow: 0 0 8px rgba(255,198,0,.7); }
.image-frame {
  position: relative;
  display: block;
  overflow: hidden;
  aspect-ratio: 16 / 9;
  background:
    linear-gradient(135deg, rgba(17,23,48,.8), rgba(7,10,26,.4)),
    repeating-linear-gradient(45deg, rgba(30,42,74,.5) 0 1px, transparent 1px 8px);
  border: 1px solid var(--line-light);
}
.image-frame::before {
  content: attr(data-frame-label);
  position: absolute;
  top: 12px;
  left: 12px;
  z-index: 2;
  padding: 3px 9px;
  background: rgba(7,10,26,.78);
  border: 1px solid rgba(0,255,136,.35);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--fluorescent-green);
}
.image-frame::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(180deg, rgba(0,255,136,.05), transparent 35%, transparent 68%, rgba(255,106,0,.06));
  pointer-events: none;
}
.image-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(.92) contrast(1.06);
  transition: filter .25s ease;
}
.image-frame:hover img { filter: saturate(1.08) contrast(1.1); }
.rule {
  border: 0;
  border-top: 1px solid var(--line-light);
  margin: 40px 0;
}

/* ============ 显现与动效偏好 ============ */
[data-reveal] { transition: opacity .4s ease, transform .5s ease; }
html.reveal-ready [data-reveal]:not([data-visible="true"]) {
  opacity: 0;
  transform: translateY(20px);
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto !important; }
  *, *::before, *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
  }
  html.reveal-ready [data-reveal]:not([data-visible="true"]) {
    opacity: 1;
    transform: none;
  }
}