/* =========================================================
   平博赛场 · /assets/site.css
   共享外壳：框架式页头、看台通道页脚、通用组件
   ========================================================= */

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-padding-top: 140px;
  color-scheme: dark;
}

body, h1, h2, h3, h4, h5, p, figure, blockquote, ul, ol, dl, dd, fieldset { margin: 0; }
ul, ol { padding: 0; list-style: none; }
img, svg, video { display: block; max-width: 100%; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
a { color: inherit; text-decoration: none; }
input, select, textarea { font: inherit; }

:root {
  /* 色彩 */
  --ink: #05251F;
  --ink-panel: #0B3A31;
  --lime: #C6FF3D;
  --lime-mist: #E6FFB0;
  --orange: #FF8A3D;
  --orange-deep: #C9541F;
  --paper: #F5F1E6;
  --mist: #9DB7AC;
  --indigo: #2A1D55;
  --wine: #5A1D31;
  --black: #06110F;
  --line: rgba(157, 183, 172, 0.26);
  --line-soft: rgba(157, 183, 172, 0.16);
  --line-lime: rgba(198, 255, 61, 0.35);

  /* 字体 */
  --font-display: "Alibaba PuHuiTi 3.0", "HarmonyOS Sans SC", "Source Han Sans SC", "Noto Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  --font-body: "Source Han Sans SC", "Noto Sans SC", "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", system-ui, sans-serif;
  --font-serif: "Source Han Serif SC", "Noto Serif SC", "Songti SC", "STSong", Georgia, serif;
  --font-mono: "DIN Alternate", "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;

  /* 形状与节奏 */
  --radius-lg: 26px;
  --radius-md: 18px;
  --radius-sm: 12px;
  --gutter: clamp(16px, 4vw, 44px);
  --ease: cubic-bezier(0.2, 0.7, 0.2, 1);
  --dur: 180ms;
}

body {
  min-height: 100vh;
  background:
    radial-gradient(120% 55% at 82% -8%, rgba(42, 29, 85, 0.55), transparent 68%),
    radial-gradient(80% 45% at -5% 0%, rgba(198, 255, 61, 0.07), transparent 62%),
    var(--ink);
  color: var(--paper);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.75;
  letter-spacing: 0.01em;
  -webkit-font-smoothing: antialiased;
}

::selection { background: var(--lime); color: var(--ink); }

:focus-visible {
  outline: 2px solid var(--lime);
  outline-offset: 3px;
  border-radius: 6px;
}

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

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

/* ---------------- 跳至主要内容 ---------------- */
.skip-link {
  position: absolute;
  top: 10px; left: 14px;
  z-index: 120;
  padding: 10px 20px;
  border-radius: 999px;
  background: var(--lime);
  color: var(--ink);
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 14px;
  letter-spacing: 0.04em;
  transform: translateY(-180%);
  transition: transform var(--dur) var(--ease);
}
.skip-link:focus,
.skip-link:focus-visible { transform: translateY(0); }

/* =========================================================
   页头：赛道看台框架
   ========================================================= */
.site-header {
  position: sticky;
  top: 0;
  z-index: 60;
  background: rgba(5, 37, 31, 0.94);
  -webkit-backdrop-filter: blur(12px) saturate(120%);
  backdrop-filter: blur(12px) saturate(120%);
  border-bottom: 1px solid var(--line-lime);
  box-shadow: 0 24px 50px -38px var(--black);
}

.frame-edge {
  display: none;
  position: fixed;
  top: 0; bottom: 0;
  width: 12px;
  z-index: 55;
  pointer-events: none;
  background: linear-gradient(180deg, rgba(198, 255, 61, 0.22), rgba(198, 255, 61, 0.05) 34%, rgba(5, 37, 31, 0) 72%);
}
.frame-edge--left { left: 0; border-right: 1px solid rgba(198, 255, 61, 0.16); }
.frame-edge--right { right: 0; border-left: 1px solid rgba(198, 255, 61, 0.16); }
@media (min-width: 1440px) { .frame-edge { display: block; } }

/* 上沿：联赛切换器 + 更新窗口 */
.header-utility { border-bottom: 1px dashed var(--line-soft); }
.header-utility__inner {
  width: 100%;
  max-width: 1360px;
  margin-inline: auto;
  padding: 8px var(--gutter);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
}

.league-switch { position: relative; }

.league-switch__toggle {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 6px 13px 6px 11px;
  border: 1px solid rgba(198, 255, 61, 0.28);
  border-radius: 999px;
  background: rgba(11, 58, 49, 0.72);
  color: var(--paper);
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.06em;
  font-variant-numeric: tabular-nums;
  transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease), color var(--dur) var(--ease);
}
.league-switch__toggle:hover,
.league-switch__toggle[aria-expanded="true"] {
  border-color: var(--lime);
  background: rgba(198, 255, 61, 0.12);
  color: var(--lime-mist);
}
.league-switch__dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--lime);
  box-shadow: 0 0 0 3px rgba(198, 255, 61, 0.16);
  flex: 0 0 auto;
}
.league-switch__label { color: var(--mist); }
.league-switch__current { color: var(--lime); font-weight: 700; }
.league-switch__chev {
  width: 0; height: 0;
  border-left: 4px solid transparent;
  border-right: 4px solid transparent;
  border-top: 5px solid currentColor;
  opacity: 0.7;
  transition: transform var(--dur) var(--ease);
}
.league-switch__toggle[aria-expanded="true"] .league-switch__chev { transform: rotate(180deg); }

.league-switch__panel {
  position: absolute;
  left: 0;
  top: calc(100% + 10px);
  z-index: 90;
  width: min(540px, calc(100vw - 32px));
  padding: 14px;
  border: 1px solid rgba(198, 255, 61, 0.32);
  border-radius: var(--radius-md);
  background: var(--ink-panel);
  box-shadow: 0 30px 70px -30px var(--black);
}
.league-switch__panel[hidden] { display: none; }
.league-switch__hint {
  margin-bottom: 10px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.08em;
  color: var(--mist);
}
.league-switch__list { display: flex; flex-wrap: wrap; gap: 7px; }
.league-chip {
  padding: 5px 11px;
  border: 1px solid rgba(157, 183, 172, 0.3);
  border-radius: 999px;
  color: rgba(245, 241, 230, 0.82);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease), background var(--dur) var(--ease);
}
.league-chip:hover { border-color: var(--lime); color: var(--lime); }
.league-chip[aria-pressed="true"] {
  background: var(--lime);
  border-color: var(--lime);
  color: var(--ink);
  font-weight: 700;
}

.header-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 18px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--mist);
  font-variant-numeric: tabular-nums;
}
.header-meta__tag { color: var(--lime-mist); }
.header-meta__time b { color: var(--orange); font-weight: 700; }

/* 主栏：品牌 + 导航 */
.header-main__inner {
  width: 100%;
  max-width: 1360px;
  margin-inline: auto;
  padding: 13px var(--gutter);
  display: flex;
  align-items: center;
  gap: clamp(14px, 3vw, 36px);
}

.brand { display: inline-flex; align-items: center; gap: 12px; flex: 0 0 auto; }
.brand__mark {
  width: 46px; height: 46px;
  flex: 0 0 auto;
  display: grid;
  place-items: center;
  border-radius: 15px;
  color: var(--lime);
  background: radial-gradient(circle at 28% 18%, rgba(198, 255, 61, 0.24), rgba(11, 58, 49, 0.94) 72%);
  border: 1px solid rgba(198, 255, 61, 0.35);
  transition: border-color var(--dur) var(--ease), transform var(--dur) var(--ease);
}
.brand:hover .brand__mark { border-color: var(--lime); transform: translateY(-1px); }
.brand__text { display: flex; flex-direction: column; gap: 2px; }
.brand__name {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 21px;
  line-height: 1.1;
  letter-spacing: -0.01em;
  color: var(--paper);
}
.brand__sub {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.2em;
  color: var(--mist);
  text-transform: uppercase;
}

.site-nav {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: clamp(8px, 1.6vw, 22px);
}
.site-nav__list { display: flex; align-items: center; gap: 2px; }
.site-nav__link {
  position: relative;
  display: inline-block;
  padding: 9px 12px;
  border-radius: 10px;
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: rgba(245, 241, 230, 0.78);
  transition: color var(--dur) var(--ease), background var(--dur) var(--ease);
}
.site-nav__link::after {
  content: "";
  position: absolute;
  left: 12px; right: 12px; bottom: 4px;
  height: 2px;
  background: var(--lime);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform var(--dur) var(--ease);
}
.site-nav__link:hover { color: var(--lime-mist); background: rgba(198, 255, 61, 0.08); }
.site-nav__link:hover::after { transform: scaleX(1); }
.site-nav__link[aria-current="page"] {
  color: var(--lime);
  background: rgba(198, 255, 61, 0.1);
}
.site-nav__link[aria-current="page"]::after { transform: scaleX(1); }

.site-nav__cta {
  flex: 0 0 auto;
  padding: 10px 18px;
  border: 1px solid rgba(198, 255, 61, 0.55);
  border-radius: 999px;
  color: var(--lime);
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.08em;
  white-space: nowrap;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.site-nav__cta:hover,
.site-nav__cta:focus-visible {
  background: var(--lime);
  border-color: var(--lime);
  color: var(--ink);
}

.nav-toggle {
  display: none;
  align-items: center;
  gap: 9px;
  margin-left: auto;
  padding: 9px 14px;
  border: 1px solid rgba(198, 255, 61, 0.4);
  border-radius: 12px;
  color: var(--lime-mist);
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.14em;
  transition: background var(--dur) var(--ease), border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}
.nav-toggle__bars { display: grid; gap: 4px; width: 18px; }
.nav-toggle__bars span {
  display: block;
  height: 2px;
  border-radius: 2px;
  background: currentColor;
  transition: transform var(--dur) var(--ease), opacity var(--dur) var(--ease);
}
.nav-toggle[aria-expanded="true"] {
  background: rgba(198, 255, 61, 0.14);
  border-color: var(--lime);
  color: var(--lime);
}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

/* 计时带进度 */
.header-progress { height: 3px; background: rgba(157, 183, 172, 0.14); }
.header-progress__bar {
  display: block;
  height: 100%;
  width: 0;
  background: linear-gradient(90deg, var(--lime), var(--orange));
  transition: width 120ms linear;
}

/* 移动端导航抽屉 */
@media (max-width: 1080px) {
  .nav-toggle { display: inline-flex; }

  .site-nav {
    position: absolute;
    left: 0; right: 0;
    top: 100%;
    margin-left: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 14px;
    padding: 16px var(--gutter) 26px;
    max-height: min(74vh, 580px);
    overflow-y: auto;
    background: linear-gradient(180deg, #0B3A31 0%, #05251F 78%);
    border-bottom: 1px solid var(--line-lime);
    box-shadow: 0 34px 64px -34px var(--black);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transform: translateY(-10px);
    transition: opacity var(--dur) var(--ease), transform var(--dur) var(--ease), visibility var(--dur) var(--ease);
  }
  .site-nav[data-open="true"] {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: translateY(0);
  }
  .site-nav__list { flex-direction: column; align-items: stretch; gap: 0; }
  .site-nav__link {
    padding: 14px 6px;
    border-radius: 0;
    border-bottom: 1px dashed rgba(157, 183, 172, 0.2);
    font-size: 17px;
    letter-spacing: 0.04em;
  }
  .site-nav__link::after { left: 6px; right: auto; width: 28px; bottom: 9px; }
  .site-nav__cta { align-self: flex-start; padding: 12px 22px; font-size: 14.5px; }
}

@media (max-width: 720px) {
  .header-meta__time { display: none; }
  .brand__mark { width: 40px; height: 40px; border-radius: 13px; }
  .brand__name { font-size: 19px; }
  .brand__sub { font-size: 9.5px; letter-spacing: 0.16em; }
  .league-switch__label { display: none; }
}

/* =========================================================
   页脚：看台通道
   ========================================================= */
.site-footer {
  position: relative;
  margin-top: clamp(48px, 7vw, 110px);
  background: linear-gradient(180deg, var(--ink) 0%, var(--black) 100%);
  border-top: 1px solid var(--line-lime);
}
.site-footer::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 4px;
  background: repeating-linear-gradient(90deg, var(--lime) 0 18px, rgba(198, 255, 61, 0) 18px 46px);
  opacity: 0.55;
}

.footer-frame {
  width: 100%;
  max-width: 1360px;
  margin-inline: auto;
  padding: clamp(42px, 6vw, 84px) var(--gutter) 26px;
}

.footer-top {
  display: grid;
  grid-template-columns: 1.55fr 1fr 1fr 1.35fr;
  gap: clamp(24px, 4vw, 52px);
}

.brand--footer .brand__mark { width: 42px; height: 42px; }
.brand--footer .brand__name { font-size: 20px; }

.footer-brand__line {
  margin-top: 16px;
  max-width: 34ch;
  font-size: 15.5px;
  line-height: 1.8;
  color: rgba(245, 241, 230, 0.8);
}
.footer-brand__status {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  margin-top: 16px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--lime-mist);
  font-variant-numeric: tabular-nums;
}
.status-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--lime);
  box-shadow: 0 0 0 4px rgba(198, 255, 61, 0.14);
  animation: pacePulse 3s ease-in-out infinite;
}
@keyframes pacePulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.35; }
}

.footer-col__title {
  padding-bottom: 10px;
  margin-bottom: 8px;
  border-bottom: 1px dashed rgba(157, 183, 172, 0.26);
  font-family: var(--font-mono);
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--mist);
}
.footer-col ul { display: grid; }
.footer-col li a {
  display: inline-block;
  padding: 7px 0;
  font-size: 15px;
  color: rgba(245, 241, 230, 0.78);
  border-bottom: 1px solid transparent;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease), padding-left var(--dur) var(--ease);
}
.footer-col li a:hover,
.footer-col li a:focus-visible {
  color: var(--lime);
  border-bottom-color: rgba(198, 255, 61, 0.5);
  padding-left: 5px;
}

.footer-contact { display: grid; gap: 8px; }
.footer-contact__item {
  display: flex;
  gap: 10px;
  font-size: 14.5px;
  line-height: 1.6;
  color: rgba(245, 241, 230, 0.86);
  font-variant-numeric: tabular-nums;
}
.footer-contact__item span {
  flex: 0 0 42px;
  padding-top: 2px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.08em;
  color: var(--mist);
}
.footer-contact__note {
  margin-top: 12px;
  padding-left: 12px;
  border-left: 2px solid var(--orange-deep);
  font-size: 13px;
  line-height: 1.72;
  color: var(--mist);
}

.footer-legal {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 26px;
  margin-top: clamp(32px, 5vw, 56px);
  padding-top: 20px;
  border-top: 1px solid var(--line-soft);
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.04em;
  color: var(--mist);
  font-variant-numeric: tabular-nums;
}
.footer-legal__copy { margin-right: auto; }
.footer-legal__links { display: flex; flex-wrap: wrap; gap: 8px 18px; }
.footer-legal__links a {
  color: rgba(245, 241, 230, 0.8);
  border-bottom: 1px solid rgba(157, 183, 172, 0.35);
  padding-bottom: 2px;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.footer-legal__links a:hover,
.footer-legal__links a:focus-visible { color: var(--lime); border-bottom-color: var(--lime); }
.footer-legal__icp { color: var(--orange); font-weight: 700; }

.footer-note {
  margin-top: 18px;
  font-size: 12.5px;
  line-height: 1.7;
  color: rgba(157, 183, 172, 0.9);
}
.footer-note__link {
  color: var(--lime);
  border-bottom: 1px solid rgba(198, 255, 61, 0.5);
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.footer-note__link:hover { color: var(--lime-mist); border-bottom-color: var(--lime-mist); }

@media (max-width: 1024px) {
  .footer-top { grid-template-columns: 1fr 1fr; }
  .footer-brand { grid-column: 1 / -1; }
}
@media (max-width: 640px) {
  .footer-top { grid-template-columns: 1fr; }
  .footer-legal__copy { margin-right: 0; flex-basis: 100%; }
}

/* =========================================================
   通用容器与排版
   ========================================================= */
.page-shell {
  width: 100%;
  max-width: 1240px;
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.section { padding-block: clamp(40px, 6vw, 88px); }
.section__head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 18px 32px;
  margin-bottom: clamp(20px, 3vw, 38px);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--lime);
  font-variant-numeric: tabular-nums;
}
.eyebrow::before {
  content: "";
  width: 22px; height: 2px;
  background: var(--lime);
}

.section-title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(28px, 4vw, 40px);
  line-height: 1.12;
  letter-spacing: -0.02em;
  color: var(--paper);
}

.lede {
  max-width: 60ch;
  font-size: clamp(16px, 1.4vw, 18px);
  line-height: 1.78;
  color: rgba(245, 241, 230, 0.82);
}

.prose {
  max-width: 68ch;
  font-size: 17px;
  line-height: 1.78;
  color: rgba(245, 241, 230, 0.9);
}
.prose p + p { margin-top: 1em; }
.prose h2 {
  margin-top: 1.9em;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(22px, 2.6vw, 28px);
  line-height: 1.25;
  letter-spacing: -0.01em;
  color: var(--paper);
}
.prose h3 {
  margin-top: 1.6em;
  font-family: var(--font-serif);
  font-weight: 500;
  font-size: 20px;
  color: var(--lime-mist);
}
.prose ul, .prose ol { margin: 1em 0; padding-left: 1.3em; }
.prose ul { list-style: square; }
.prose ol { list-style: decimal; }
.prose li { margin-top: 0.4em; }
.prose li::marker { color: var(--lime); }
.prose a {
  color: var(--lime);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
}
.prose a:hover { color: var(--lime-mist); }
.prose blockquote {
  margin: 1.4em 0;
  padding: 12px 0 12px 18px;
  border-left: 3px solid var(--orange-deep);
  font-family: var(--font-serif);
  color: rgba(245, 241, 230, 0.86);
}
.prose code,
.prose kbd {
  font-family: var(--font-mono);
  font-size: 0.92em;
  padding: 2px 6px;
  border-radius: 6px;
  background: rgba(198, 255, 61, 0.12);
  color: var(--lime-mist);
}

/* 面包屑 */
.breadcrumb {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.06em;
  color: var(--mist);
}
.breadcrumb__list { display: flex; flex-wrap: wrap; align-items: center; gap: 6px; }
.breadcrumb__item { display: inline-flex; align-items: center; gap: 6px; }
.breadcrumb__item::after { content: "/"; color: rgba(157, 183, 172, 0.55); }
.breadcrumb__item:last-child::after { content: none; }
.breadcrumb__link {
  color: var(--mist);
  border-bottom: 1px dashed transparent;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.breadcrumb__link:hover { color: var(--lime); border-bottom-color: var(--lime); }
.breadcrumb__item[aria-current="page"] { color: var(--paper); }

/* 网格 */
.grid { display: grid; gap: clamp(16px, 2.4vw, 28px); }
.grid--2 { grid-template-columns: repeat(auto-fit, minmax(min(320px, 100%), 1fr)); }
.grid--3 { grid-template-columns: repeat(auto-fit, minmax(min(258px, 100%), 1fr)); }
@media (min-width: 900px) {
  .grid--stagger > *:nth-child(even) { margin-top: clamp(16px, 3vw, 44px); }
}

/* 按钮 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 26px;
  border: 1px solid transparent;
  border-radius: 999px;
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.05em;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease), border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}
.btn--lime {
  background: var(--lime);
  color: var(--ink);
  box-shadow: 0 12px 30px -16px rgba(198, 255, 61, 0.6);
}
.btn--lime:hover {
  background: var(--lime-mist);
  box-shadow: 0 16px 34px -14px rgba(198, 255, 61, 0.55);
}
.btn--outline {
  border-color: rgba(198, 255, 61, 0.5);
  color: var(--paper);
}
.btn--outline:hover {
  border-color: var(--lime);
  background: rgba(198, 255, 61, 0.1);
  color: var(--lime);
}
.btn--small { padding: 9px 17px; font-size: 13.5px; }

/* 标签 */
.tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 5px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.08em;
  color: var(--mist);
  font-variant-numeric: tabular-nums;
}
.tag--lime {
  background: var(--lime-mist);
  border-color: transparent;
  color: var(--ink);
  font-weight: 700;
}
.tag--orange {
  background: rgba(255, 138, 61, 0.12);
  border-color: rgba(255, 138, 61, 0.45);
  color: var(--orange);
  font-weight: 700;
}

/* 堆叠面板 */
.panel {
  padding: clamp(20px, 3vw, 32px);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--ink-panel);
}
.panel__label {
  display: block;
  margin-bottom: 10px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--lime-mist);
  font-variant-numeric: tabular-nums;
}
.panel__title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(20px, 2.4vw, 26px);
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--paper);
}
.panel__text {
  margin-top: 10px;
  font-size: 15.5px;
  line-height: 1.78;
  color: rgba(245, 241, 230, 0.82);
}
.panel--indigo {
  background: linear-gradient(160deg, rgba(42, 29, 85, 0.96), rgba(11, 58, 49, 0.9));
  border-color: rgba(198, 255, 61, 0.22);
}
.panel--indigo .panel__label { color: var(--lime); }
.panel--wine {
  background: linear-gradient(160deg, rgba(90, 29, 49, 0.94), rgba(5, 37, 31, 0.94));
  border-color: rgba(255, 138, 61, 0.3);
}
.panel--wine .panel__label { color: var(--orange); }
.panel--paper {
  background: var(--paper);
  border-color: rgba(6, 17, 15, 0.12);
  color: var(--black);
}
.panel--paper .panel__label { color: var(--orange-deep); }
.panel--paper .panel__title { color: var(--ink); }
.panel--paper .panel__text { color: rgba(6, 17, 15, 0.82); }
.panel--paper a {
  color: var(--ink);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* 图片容器基础规则（页面阶段放入真实图片） */
.media-frame {
  position: relative;
  display: block;
  overflow: hidden;
  aspect-ratio: 16 / 10;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background:
    repeating-linear-gradient(112deg, rgba(198, 255, 61, 0.06) 0 2px, transparent 2px 15px),
    linear-gradient(160deg, rgba(11, 58, 49, 0.95), rgba(5, 37, 31, 0.95));
}
.media-frame--wide { aspect-ratio: 21 / 9; }
.media-frame--square { aspect-ratio: 1 / 1; }
.media-frame__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.95) contrast(1.05);
}
.media-frame__caption {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  padding: 12px 16px;
  background: linear-gradient(180deg, rgba(5, 37, 31, 0), rgba(5, 37, 31, 0.92));
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--lime-mist);
  font-variant-numeric: tabular-nums;
}

/* 显现（JS 可用时才隐藏） */
.js-ready [data-reveal] {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 480ms var(--ease), transform 480ms var(--ease);
}
.js-ready [data-reveal].is-visible {
  opacity: 1;
  transform: none;
}

/* ---------------- 动效降级 ---------------- */
@media (prefers-reduced-motion: reduce) {
  *, *::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; }
  .js-ready [data-reveal] { opacity: 1; transform: none; transition: none; }
  .skip-link { transition: none; }
}