/* ==========================================================================
   YUN赛场 · /assets/site.css
   共享层：reset / 令牌 / 中文排版 / 网格 / 通用组件 / 悬浮胶囊头 / 暗场页脚
   ========================================================================== */

/* 1. Reset ---------------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body { margin: 0; }
h1, h2, h3, h4, h5, h6, p, figure, blockquote, dl, dd { margin: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }
img, svg, video { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; padding: 0; cursor: pointer; }
table { border-collapse: collapse; width: 100%; }
[hidden] { display: none !important; }

/* 2. 设计令牌 ------------------------------------------------------------ */
:root {
  --ink-900: #071B30;
  --ink-800: #0B2A4A;
  --ink-700: #123A63;
  --mint: #00E5C3;
  --mint-soft: #C9FFF5;
  --coral: #FF6B4A;
  --cream: #F4EDE1;
  --brown: #1A1410;
  --mist: #8FA3B8;
  --ice: #EAF4FF;
  --loss: #B83B2F;

  --line: rgba(201, 255, 245, .16);
  --line-soft: rgba(201, 255, 245, .09);
  --line-strong: rgba(201, 255, 245, .34);

  --shadow-1: 0 1px 0 rgba(201, 255, 245, .05), 0 12px 32px rgba(3, 12, 22, .45);
  --shadow-2: 0 22px 56px rgba(3, 12, 22, .58);

  --radius-s: 10px;
  --radius-m: 16px;
  --radius-l: 24px;
  --radius-pill: 999px;

  --header-h: 72px;
  --wrap: 1200px;

  --font-sans: "PingFang SC", "Hiragino Sans GB", "Source Han Sans SC", "Noto Sans SC", "Microsoft YaHei", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-narrow: "Arial Narrow", "Helvetica Neue", "Roboto Condensed", var(--font-sans);
  --font-serif: "Songti SC", "Source Han Serif SC", "Noto Serif SC", Georgia, "Times New Roman", serif;
  --font-mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;

  --ease: cubic-bezier(.22, .61, .36, 1);
  --dur: 240ms;
}

/* 3. 基础排版 ------------------------------------------------------------ */
body {
  min-height: 100vh;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.75;
  letter-spacing: .01em;
  color: var(--ice);
  background-color: var(--ink-900);
  background-image:
    radial-gradient(110% 68% at 84% -10%, rgba(0, 229, 195, .14), transparent 58%),
    radial-gradient(78% 52% at 2% 0%, rgba(255, 107, 74, .10), transparent 54%),
    linear-gradient(180deg, #071B30 0%, #0B2A4A 44%, #08203a 100%);
  background-repeat: no-repeat;
  background-attachment: fixed, fixed, scroll;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-narrow);
  font-weight: 700;
  line-height: 1.16;
  letter-spacing: .06em;
  color: var(--ice);
}

p { max-width: 72ch; }

kbd {
  font-family: var(--font-mono);
  font-size: .82em;
  padding: 1px 5px;
  border-radius: 4px;
  background: rgba(26, 20, 16, .09);
  border: 1px solid rgba(26, 20, 16, .2);
}

::selection { background: var(--mint); color: #04141f; }

:where(a, button, [tabindex]):focus-visible {
  outline: 2px solid var(--mint);
  outline-offset: 3px;
  border-radius: 6px;
}

/* 4. 排版组件 ------------------------------------------------------------ */
.display {
  font-family: var(--font-narrow);
  font-size: clamp(2.2rem, 5.2vw, 4rem);
  line-height: 1.02;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--ice);
}
.serif { font-family: var(--font-serif); letter-spacing: .04em; }
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .24em;
  text-transform: uppercase;
  color: var(--mint);
}
.eyebrow::before {
  content: "";
  width: 22px;
  height: 1px;
  background: var(--mint);
  display: block;
}
.lede {
  font-size: clamp(1rem, 1.35vw, 1.125rem);
  line-height: 1.85;
  color: rgba(234, 244, 255, .82);
  max-width: 62ch;
}
.note {
  font-size: 12.5px;
  line-height: 1.7;
  letter-spacing: .02em;
  color: rgba(143, 163, 184, .92);
}
.data-num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  letter-spacing: -.01em;
  color: var(--mint);
}

/* 5. 布局工具 ------------------------------------------------------------ */
.wrap {
  width: 100%;
  max-width: var(--wrap);
  margin-inline: auto;
  padding-inline: clamp(16px, 3vw, 32px);
}
.section { padding-block: clamp(40px, 6vw, 80px); }
.section__head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: clamp(20px, 3vw, 34px);
}
.section__title { font-size: clamp(1.35rem, 2.4vw, 2rem); }
.section__note { max-width: 46ch; font-size: 14px; color: rgba(234, 244, 255, .68); }
.divider { height: 1px; border: 0; background: var(--line-soft); margin-block: clamp(24px, 4vw, 48px); }

.grid {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: clamp(12px, 1.6vw, 22px);
}
.col-3 { grid-column: span 3; }
.col-4 { grid-column: span 4; }
.col-5 { grid-column: span 5; }
.col-6 { grid-column: span 6; }
.col-7 { grid-column: span 7; }
.col-8 { grid-column: span 8; }
.col-9 { grid-column: span 9; }
.col-12 { grid-column: span 12; }

.sr-only {
  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;
}

/* 6. 面板 / 标签 / 数据组 ------------------------------------------------ */
.panel {
  position: relative;
  padding: clamp(16px, 2vw, 26px);
  border-radius: var(--radius-m);
  background: rgba(11, 42, 74, .55);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-1);
}
.panel--cream {
  background: var(--cream);
  color: var(--brown);
  border-color: rgba(26, 20, 16, .16);
  box-shadow: 0 20px 44px rgba(3, 12, 22, .42);
}
.panel--cream .panel__title { color: var(--brown); }
.panel--cream .panel__meta { color: rgba(26, 20, 16, .62); }
.panel--cream .note { color: rgba(26, 20, 16, .68); }
.panel--mint {
  background: linear-gradient(150deg, rgba(0, 229, 195, .18), rgba(0, 229, 195, .04));
  border-color: rgba(0, 229, 195, .42);
}
.panel--coral {
  background: linear-gradient(150deg, rgba(255, 107, 74, .20), rgba(255, 107, 74, .04));
  border-color: rgba(255, 107, 74, .42);
}
.panel__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 12px;
}
.panel__title { font-size: clamp(1rem, 1.5vw, 1.2rem); letter-spacing: .08em; }
.panel__meta {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--mist);
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  height: 24px;
  padding: 0 10px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--line-strong);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--ice);
  white-space: nowrap;
}
.tag--mint { background: rgba(0, 229, 195, .14); border-color: rgba(0, 229, 195, .5); color: var(--mint); }
.tag--coral { background: rgba(255, 107, 74, .16); border-color: rgba(255, 107, 74, .5); color: #ffb4a1; }
.tag--ghost { color: var(--mist); }

.stat { display: flex; flex-direction: column; gap: 2px; }
.stat__value {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(1.6rem, 3vw, 2.5rem);
  line-height: 1.05;
  letter-spacing: -.02em;
  color: var(--mint);
}
.stat__label {
  font-size: 12px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--mist);
}

/* 7. 图片容器基础 -------------------------------------------------------- */
.media {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-m);
  border: 1px solid var(--line);
  background: linear-gradient(140deg, #10365a, #071B30 58%, #0d3a5c);
  isolation: isolate;
}
.media::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  opacity: .55;
  background-image:
    linear-gradient(rgba(201, 255, 245, .07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(201, 255, 245, .07) 1px, transparent 1px);
  background-size: 28px 28px;
}
.media__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.media--16x9 { aspect-ratio: 16 / 9; }
.media--4x3 { aspect-ratio: 4 / 3; }
.media--1x1 { aspect-ratio: 1 / 1; }
.media__tag {
  position: absolute;
  z-index: 2;
  top: 12px;
  left: 12px;
  display: inline-flex;
  align-items: center;
  height: 24px;
  padding: 0 10px;
  border-radius: var(--radius-pill);
  background: rgba(7, 27, 48, .74);
  border: 1px solid var(--line-strong);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--mint);
}
.media__caption {
  position: absolute;
  z-index: 2;
  left: 0; right: 0; bottom: 0;
  padding: 12px 14px;
  font-size: 12px;
  letter-spacing: .05em;
  color: rgba(234, 244, 255, .88);
  background: linear-gradient(180deg, transparent, rgba(7, 27, 48, .88));
}

/* 8. 面包屑 / 标签页 / 时间轴 / 表格 ------------------------------------- */
.crumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding-block: clamp(14px, 2vw, 22px);
  font-size: 12.5px;
  letter-spacing: .06em;
  color: var(--mist);
}
.crumbs__link {
  color: var(--mist);
  border-bottom: 1px solid transparent;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.crumbs__link:hover { color: var(--mint); border-color: rgba(0, 229, 195, .5); }
.crumbs__sep { color: rgba(143, 163, 184, .5); }
.crumbs__current { color: var(--cream); }

.tablist {
  display: inline-flex;
  gap: 4px;
  padding: 4px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--line);
  background: rgba(7, 27, 48, .6);
}
.tab {
  height: 32px;
  padding: 0 14px;
  border-radius: var(--radius-pill);
  font-size: 13px;
  letter-spacing: .04em;
  color: var(--mist);
  transition: color var(--dur) var(--ease), background var(--dur) var(--ease);
}
.tab:hover { color: var(--ice); }
.tab[aria-selected="true"] { background: var(--cream); color: var(--brown); font-weight: 600; }

.timeline {
  position: relative;
  display: flex;
  gap: clamp(12px, 2vw, 26px);
  overflow-x: auto;
  padding-bottom: 10px;
}
.timeline::before {
  content: "";
  position: absolute;
  left: 0; right: 0; top: 7px;
  height: 1px;
  background: var(--line-strong);
}
.timeline__item {
  position: relative;
  flex: 0 0 auto;
  min-width: 120px;
  padding-top: 24px;
}
.timeline__dot {
  position: absolute;
  top: 0; left: 0;
  width: 15px; height: 15px;
  border-radius: 50%;
  border: 1px solid var(--line-strong);
  background: var(--ink-800);
  transition: background var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}
.timeline__item.is-active .timeline__dot,
.timeline__item[aria-current] .timeline__dot {
  background: var(--mint);
  border-color: var(--mint);
  box-shadow: 0 0 0 4px rgba(0, 229, 195, .18);
}
.timeline__label {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--mist);
}

.data-table { width: 100%; font-size: 14px; }
.data-table th,
.data-table td {
  padding: 10px 12px;
  border-bottom: 1px solid var(--line-soft);
  text-align: left;
  vertical-align: top;
}
.data-table th {
  font-family: var(--font-narrow);
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--mist);
}
.data-table td { color: rgba(234, 244, 255, .86); }
.data-table tbody tr:hover { background: rgba(0, 229, 195, .05); }
.data-table .data-num { font-size: 15px; }

/* 9. 按钮 ---------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 42px;
  padding: 0 20px;
  border-radius: var(--radius-pill);
  border: 1px solid transparent;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: .06em;
  white-space: nowrap;
  transition: transform 180ms var(--ease), background 180ms var(--ease),
              color 180ms var(--ease), border-color 180ms var(--ease);
}
.btn--coral {
  background: var(--coral);
  color: #200a05;
  box-shadow: 0 8px 22px rgba(255, 107, 74, .28);
}
.btn--coral:hover { background: #ff8163; transform: translateY(-1px); }
.btn--mint { background: var(--mint); color: #04141f; }
.btn--mint:hover { background: var(--mint-soft); transform: translateY(-1px); }
.btn--ghost { background: transparent; border-color: var(--line-strong); color: var(--ice); }
.btn--ghost:hover { border-color: var(--mint); color: var(--mint); }
.btn--sm { height: 34px; padding: 0 14px; font-size: 13px; }

/* 10. 跳过链接 ----------------------------------------------------------- */
.skip-link {
  position: fixed;
  left: 16px;
  top: -72px;
  z-index: 140;
  padding: 10px 18px;
  border-radius: var(--radius-pill);
  background: var(--mint);
  color: #04141f;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: .06em;
  box-shadow: var(--shadow-2);
  transition: top var(--dur) var(--ease);
}
.skip-link:focus { top: 14px; }

/* 11. 悬浮胶囊头部 ------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 90;
  padding: 14px clamp(10px, 3vw, 32px) 0;
  transition: padding var(--dur) var(--ease);
}
.site-header.is-scrolled { padding-top: 8px; }

.site-header__inner {
  position: relative;
  display: flex;
  align-items: center;
  gap: clamp(10px, 2vw, 26px);
  width: 100%;
  max-width: var(--wrap);
  min-height: var(--header-h);
  margin: 0 auto;
  padding: 10px clamp(14px, 2vw, 26px);
  border-radius: var(--radius-pill);
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(11, 42, 74, .95), rgba(7, 27, 48, .92));
  box-shadow: var(--shadow-1);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  backdrop-filter: blur(14px) saturate(140%);
  transition: box-shadow var(--dur) var(--ease), background var(--dur) var(--ease);
}
.site-header.is-scrolled .site-header__inner {
  box-shadow: var(--shadow-2);
  background: linear-gradient(180deg, rgba(11, 42, 74, .98), rgba(7, 27, 48, .96));
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  flex: 0 0 auto;
  padding: 4px 2px;
  border-radius: var(--radius-pill);
}
.brand__glyph {
  width: 11px;
  height: 11px;
  border-radius: 3px;
  background: var(--mint);
  box-shadow: 0 0 0 4px rgba(0, 229, 195, .16);
  transform: rotate(45deg);
  transition: box-shadow var(--dur) var(--ease);
}
.brand:hover .brand__glyph { box-shadow: 0 0 0 6px rgba(0, 229, 195, .22); }
.brand__word {
  font-family: var(--font-narrow);
  font-size: 20px;
  font-weight: 700;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--ice);
}
.brand__sub {
  font-family: var(--font-serif);
  font-size: 15px;
  letter-spacing: .22em;
  color: var(--cream);
  padding-left: 9px;
  border-left: 1px solid var(--line-strong);
}

.site-nav {
  flex: 1 1 auto;
  display: flex;
  justify-content: center;
  min-width: 0;
}
.site-nav__list {
  display: flex;
  align-items: center;
  gap: clamp(2px, .8vw, 8px);
}
.site-nav__item { position: relative; }
.site-nav__link {
  display: inline-flex;
  align-items: center;
  height: 38px;
  padding: 0 clamp(8px, 1vw, 14px);
  border-radius: var(--radius-pill);
  font-size: 14.5px;
  letter-spacing: .05em;
  color: rgba(234, 244, 255, .76);
  white-space: nowrap;
  transition: color var(--dur) var(--ease), background var(--dur) var(--ease);
}
.site-nav__link:hover { color: var(--mint-soft); background: rgba(0, 229, 195, .09); }
.site-nav__link[aria-current="page"] {
  background: var(--cream);
  color: var(--brown);
  font-weight: 600;
}

.nav-actions {
  position: relative;
  display: flex;
  align-items: center;
  gap: 10px;
  flex: 0 0 auto;
}
.status-lamp {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 5px 11px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--line);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--mist);
}
.status-lamp__dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--coral);
  animation: lamp-pulse 2.4s var(--ease) infinite;
}
@keyframes lamp-pulse {
  0% { box-shadow: 0 0 0 0 rgba(255, 107, 74, .5); }
  70% { box-shadow: 0 0 0 8px rgba(255, 107, 74, 0); }
  100% { box-shadow: 0 0 0 0 rgba(255, 107, 74, 0); }
}
.status-lamp__text { white-space: nowrap; }

.nav-fav {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  height: 34px;
  padding: 0 13px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--line);
  font-size: 13px;
  letter-spacing: .06em;
  color: var(--mist);
  white-space: nowrap;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.nav-fav::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 2px;
  border: 1px solid currentColor;
  transform: rotate(45deg);
}
.nav-fav:hover { color: var(--cream); border-color: var(--line-strong); }
.nav-fav[aria-expanded="true"] { color: var(--mint); border-color: var(--mint); }

.fav-hint {
  position: absolute;
  top: calc(100% + 14px);
  right: 0;
  z-index: 95;
  width: min(268px, 72vw);
  padding: 12px 15px;
  border-radius: var(--radius-m);
  background: var(--cream);
  color: var(--brown);
  font-size: 13px;
  line-height: 1.65;
  box-shadow: var(--shadow-2);
}

.nav-toggle {
  display: none;
  align-items: center;
  gap: 8px;
  height: 38px;
  padding: 0 14px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--line-strong);
  font-size: 13px;
  letter-spacing: .08em;
  color: var(--ice);
}
.nav-toggle__bars {
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  gap: 4px;
  width: 16px;
}
.nav-toggle__bar {
  display: block;
  height: 2px;
  border-radius: 2px;
  background: currentColor;
  transition: transform 200ms var(--ease), opacity 200ms var(--ease);
}
.site-header[data-open="true"] .nav-toggle__bar:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.site-header[data-open="true"] .nav-toggle__bar:nth-child(2) { opacity: 0; }
.site-header[data-open="true"] .nav-toggle__bar:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }
.nav-toggle__text { white-space: nowrap; }

.nav-progress {
  position: absolute;
  left: clamp(14px, 2vw, 26px);
  right: clamp(14px, 2vw, 26px);
  bottom: 5px;
  height: 2px;
  border-radius: 2px;
  overflow: hidden;
  pointer-events: none;
  background: rgba(201, 255, 245, .12);
}
.nav-progress__bar {
  display: block;
  width: 100%;
  height: 100%;
  transform: scaleX(0);
  transform-origin: left center;
  background: linear-gradient(90deg, var(--mint), var(--coral));
  transition: transform 120ms linear;
}

/* 12. 暗场页脚 ----------------------------------------------------------- */
.site-footer {
  margin-top: clamp(56px, 8vw, 120px);
  border-top: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(7, 27, 48, 0) 0%, #071B30 20%, #050f1b 100%);
  color: var(--ice);
}
.footer-inner {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: clamp(36px, 5vw, 64px) clamp(16px, 3vw, 32px) 28px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1.25fr .9fr;
  gap: clamp(24px, 3vw, 48px);
}
.footer-brand__mark {
  display: flex;
  align-items: baseline;
  gap: 10px;
  font-family: var(--font-narrow);
  font-size: 22px;
  font-weight: 700;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--ice);
}
.footer-brand__mark-sub {
  font-family: var(--font-serif);
  font-size: 14px;
  letter-spacing: .22em;
  color: var(--cream);
  text-transform: none;
}
.footer-brand__text {
  margin-top: 12px;
  max-width: 34ch;
  font-size: 14px;
  line-height: 1.8;
  color: rgba(234, 244, 255, .72);
}
.footer-brand__meta {
  margin-top: 12px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .1em;
  color: var(--mist);
}
.footer-col__title {
  margin-bottom: 14px;
  font-family: var(--font-narrow);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--mint);
}
.footer-list { display: grid; gap: 10px; }
.footer-list__link {
  font-size: 14.5px;
  color: rgba(234, 244, 255, .72);
  transition: color 180ms var(--ease);
}
.footer-list__link:hover { color: var(--mint); }
.footer-label {
  display: block;
  margin-bottom: 2px;
  font-size: 11px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--mist);
}
.copy-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  max-width: 100%;
  padding-bottom: 1px;
  font-family: var(--font-mono);
  font-size: 13.5px;
  text-align: left;
  color: var(--ice);
  border-bottom: 1px dashed var(--line-strong);
  transition: color 180ms var(--ease), border-color 180ms var(--ease);
  word-break: break-all;
}
.copy-btn:hover { color: var(--mint); border-color: var(--mint); }
.copy-btn[data-copied="true"] { color: var(--mint); border-color: var(--mint); }
.copy-btn[data-copied="true"]::after {
  content: "已复制";
  font-family: var(--font-sans);
  font-size: 11px;
  letter-spacing: .08em;
  color: var(--mint);
}
.footer-addr {
  display: block;
  font-size: 13.5px;
  line-height: 1.72;
  color: rgba(234, 244, 255, .7);
}
.footer-note {
  margin-top: 16px;
  max-width: 34ch;
  font-size: 12.5px;
  line-height: 1.7;
  color: rgba(143, 163, 184, .85);
}
.to-top {
  margin-top: 18px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  height: 34px;
  padding: 0 14px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--line-strong);
  font-size: 13px;
  letter-spacing: .08em;
  color: var(--mist);
  opacity: 0;
  pointer-events: none;
  transform: translateY(6px);
  transition: opacity var(--dur) var(--ease), transform var(--dur) var(--ease),
              color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.to-top::before { content: "↑"; font-family: var(--font-mono); }
.to-top:hover { color: var(--mint); border-color: var(--mint); }
.to-top.is-on { opacity: 1; pointer-events: auto; transform: none; }

.footer-bottom {
  margin-top: clamp(28px, 4vw, 48px);
  padding-top: 20px;
  border-top: 1px solid var(--line-soft);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px 24px;
  font-size: 12.5px;
  color: var(--mist);
}
.footer-meta { display: flex; flex-wrap: wrap; align-items: center; gap: 6px 18px; }
.footer-legal { display: flex; flex-wrap: wrap; align-items: center; gap: 6px 16px; }
.footer-legal__link {
  color: var(--mist);
  border-bottom: 1px solid transparent;
  transition: color 180ms var(--ease), border-color 180ms var(--ease);
}
.footer-legal__link:hover { color: var(--mint); border-color: rgba(0, 229, 195, .5); }

/* 13. 滚动显现协议 ------------------------------------------------------- */
[data-reveal] {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 320ms var(--ease), transform 320ms var(--ease);
}
[data-reveal].is-visible { opacity: 1; transform: none; }

/* 14. 响应式 ------------------------------------------------------------- */
@media (max-width: 1080px) {
  .site-nav__link { padding: 0 10px; font-size: 13.5px; }
  .status-lamp { display: none; }
  .col-3 { grid-column: span 6; }
  .col-4 { grid-column: span 6; }
  .col-5 { grid-column: span 12; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 960px) {
  .site-header { padding: 10px clamp(10px, 3vw, 20px) 0; }
  .site-header__inner { min-height: 60px; gap: 10px; padding: 10px 14px; }
  .nav-toggle { display: inline-flex; }
  .nav-fav { display: none; }
  .fav-hint { display: none; }
  .site-nav {
    position: absolute;
    left: 0;
    right: 0;
    top: calc(100% + 10px);
    display: block;
    padding: 10px;
    border-radius: var(--radius-l);
    border: 1px solid var(--line);
    background: linear-gradient(180deg, #0B2A4A, #071B30);
    box-shadow: var(--shadow-2);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: opacity 220ms var(--ease), transform 220ms var(--ease), visibility 220ms;
  }
  .site-header[data-open="true"] .site-nav {
    opacity: 1;
    visibility: visible;
    transform: none;
  }
  .site-nav__list { flex-direction: column; align-items: stretch; gap: 2px; }
  .site-nav__link {
    width: 100%;
    height: 46px;
    justify-content: flex-start;
    padding: 0 16px;
    border-radius: 12px;
    font-size: 15px;
  }
  .site-nav__link[aria-current="page"] { background: var(--cream); color: var(--brown); }
  .grid { grid-template-columns: repeat(6, minmax(0, 1fr)); }
  .col-3, .col-4, .col-5, .col-6, .col-7, .col-8, .col-9 { grid-column: span 6; }
}

@media (max-width: 720px) {
  .nav-cta { display: none; }
  .brand__word { font-size: 18px; letter-spacing: .16em; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; align-items: flex-start; }
  .data-table { display: block; overflow-x: auto; }
}

@media (max-width: 480px) {
  .site-header__inner { padding: 8px 12px; }
  .brand__sub { display: none; }
  .nav-toggle__text { display: none; }
  .grid { grid-template-columns: 1fr; }
  .col-3, .col-4, .col-5, .col-6, .col-7, .col-8, .col-9, .col-12 { grid-column: span 1; }
}

/* 15. 减少动效 ----------------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
  }
  [data-reveal] { opacity: 1 !important; transform: none !important; }
  .nav-progress__bar { transition: none; }
}