/* ==========================================================================
   天梭看台 /assets/site.css —— 共享外壳与基础组件
   1 重置 · 2 变量 · 3 正文排版 · 4 无障碍 · 5 布局 ·
   6 文本工具 · 7 按钮与标签 · 8 面包屑 · 9 分段切换 ·
   10 时间轴 · 11 数据模块 · 12 媒体容器 · 13 头部 · 14 页脚 · 15 动效 · 16 响应式
   ========================================================================== */

/* 1 重置 ---------------------------------------------------------------- */
*, *::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, canvas { display: block; max-width: 100%; }
img { height: auto; }
button, input, select, textarea { font: inherit; color: inherit; }
button { background: none; border: 0; padding: 0; cursor: pointer; }
a { color: inherit; text-decoration: none; }
hr { border: 0; border-top: 1px solid var(--line); margin: 0; }
table { border-collapse: collapse; width: 100%; }

/* 2 变量 ---------------------------------------------------------------- */
:root {
  --sea: #0E2A47;
  --sea-ink: #0B1116;
  --red: #D8232A;
  --red-dark: #9E1720;
  --cream: #F5F1E8;
  --stone: #4A4F55;
  --moss: #6E7F5C;
  --clay: #C4623C;
  --lime: #B6FF3C;
  --silver: #C9CED4;

  --ink: #0E2A47;
  --ink-soft: #3E4A57;
  --paper: #F5F1E8;
  --paper-moss: #E8EADF;
  --paper-clay: #F0E2D9;

  --font-display: "HarmonyOS Sans SC", "Source Han Sans SC", "PingFang SC", "Noto Sans SC", "Microsoft YaHei", system-ui, -apple-system, "Segoe UI", Arial, sans-serif;
  --font-body: "PingFang SC", "HarmonyOS Sans SC", "Source Han Sans SC", "Noto Sans SC", "Microsoft YaHei", system-ui, -apple-system, "Segoe UI", Arial, sans-serif;
  --font-editorial: "Source Han Serif SC", "Noto Serif SC", "Songti SC", "STSong", Georgia, "Times New Roman", serif;
  --font-mono: "JetBrains Mono", ui-monospace, "SFMono-Regular", Menlo, Consolas, "Noto Sans Mono CJK SC", "Courier New", monospace;

  --shell: 1220px;
  --gutter: clamp(16px, 4vw, 44px);
  --header-h: 96px;
  --r-panel: 28px;
  --r-card: 20px;
  --r-pill: 999px;

  --line: rgba(74, 79, 85, .22);
  --line-dark: rgba(201, 206, 212, .18);
  --shadow: 0 14px 34px rgba(11, 17, 22, .16);
  --shadow-strong: 0 18px 46px rgba(11, 17, 22, .42);

  --dur: .35s;
  --ease: cubic-bezier(.22, .61, .36, 1);
}

/* 3 正文排版 ------------------------------------------------------------ */
body {
  font-family: var(--font-body);
  font-size: 16.5px;
  line-height: 1.75;
  color: var(--ink);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
}
p { margin-bottom: 1.15em; }
p:last-child { margin-bottom: 0; }
strong { font-weight: 800; }
blockquote {
  margin: 0;
  padding: 4px 0 4px 22px;
  border-left: 4px solid var(--clay);
  font-family: var(--font-editorial);
  color: var(--ink-soft);
}
code, kbd { font-family: var(--font-mono); font-size: .92em; }
::selection { background: var(--red); color: #fff; }

/* 4 无障碍 -------------------------------------------------------------- */
.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip-path: inset(50%); white-space: nowrap; border: 0;
}
:focus-visible {
  outline: 2px solid var(--red);
  outline-offset: 3px;
  border-radius: 6px;
}
.panel--sea :focus-visible,
.panel--deep :focus-visible,
.site-footer :focus-visible,
.site-header :focus-visible {
  outline-color: var(--cream);
}
#main-content { scroll-margin-top: calc(var(--header-h) + 16px); }
#main-content:focus { outline: none; }

/* 5 布局 ---------------------------------------------------------------- */
.shell {
  width: 100%;
  max-width: var(--shell);
  margin-inline: auto;
  padding-inline: var(--gutter);
}
.panel {
  position: relative;
  padding-block: clamp(30px, 5vw, 66px);
}
.panel--cream { background: var(--paper); color: var(--ink); }
.panel--sea { background: var(--sea); color: var(--cream); }
.panel--deep { background: var(--sea-ink); color: var(--cream); }
.panel--moss { background: var(--paper-moss); color: var(--ink); }
.panel--clay { background: var(--paper-clay); color: var(--ink); }
.panel--rule { border-top: 1px solid var(--line); }
.panel--deep.panel--rule, .panel--sea.panel--rule { border-top-color: var(--line-dark); }
.panel--lead { padding-top: calc(var(--header-h) + clamp(26px, 4vw, 54px)); }

.grid { display: grid; gap: clamp(18px, 3vw, 34px); }
.grid--12 { grid-template-columns: repeat(12, minmax(0, 1fr)); }
.grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid--split { grid-template-columns: minmax(0, 7fr) minmax(0, 4fr); }
.grid--split-rev { grid-template-columns: minmax(0, 4fr) minmax(0, 7fr); }
.span-4 { grid-column: span 4; }
.span-5 { grid-column: span 5; }
.span-7 { grid-column: span 7; }
.span-8 { grid-column: span 8; }
.span-12 { grid-column: span 12; }
.stack { display: flex; flex-direction: column; gap: clamp(12px, 1.6vw, 20px); }

/* 6 文本工具 ------------------------------------------------------------ */
.display-1 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(2.4rem, 6.6vw, 4.7rem);
  line-height: 1.06;
  letter-spacing: -.02em;
}
.display-2 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.85rem, 4.2vw, 3rem);
  line-height: 1.1;
  letter-spacing: -.01em;
}
.display-3 {
  font-family: var(--font-editorial);
  font-weight: 600;
  font-size: clamp(1.3rem, 2.3vw, 1.8rem);
  line-height: 1.3;
}
.section-title {
  font-family: var(--font-editorial);
  font-weight: 600;
  font-size: clamp(1.45rem, 2.6vw, 2.05rem);
  line-height: 1.28;
}
.eyebrow {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: .76rem;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--red);
}
.panel--sea .eyebrow, .panel--deep .eyebrow { color: var(--lime); }
.lede {
  font-size: clamp(1.02rem, 1.4vw, 1.16rem);
  line-height: 1.8;
  color: var(--ink-soft);
  max-width: 62ch;
}
.panel--sea .lede, .panel--deep .lede { color: rgba(245, 241, 232, .8); }
.mono {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  letter-spacing: .01em;
}
.panel-head {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 6px 16px;
  margin-bottom: clamp(18px, 3vw, 34px);
}
.panel-no {
  font-family: var(--font-mono);
  font-size: .8rem;
  letter-spacing: .18em;
  color: var(--clay);
}
.panel--sea .panel-no, .panel--deep .panel-no { color: var(--silver); }

/* 7 按钮与标签 ---------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: .55em;
  padding: .82em 1.5em;
  border-radius: var(--r-pill);
  border: 2px solid transparent;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: .95rem;
  letter-spacing: .02em;
  transition: background-color var(--dur) var(--ease), color var(--dur) var(--ease),
              border-color var(--dur) var(--ease), transform var(--dur) var(--ease);
}
.btn:active { transform: translateY(1px); }
.btn--red { background: var(--red); color: #fff; }
.btn--red:hover { background: var(--red-dark); }
.btn--outline { border-color: var(--red); color: var(--red); }
.btn--outline:hover { background: var(--red); color: #fff; }
.btn--onDark { border-color: rgba(245, 241, 232, .5); color: var(--cream); }
.btn--onDark:hover { background: var(--cream); color: var(--sea); border-color: var(--cream); }

.chip {
  display: inline-flex;
  align-items: center;
  gap: .45em;
  padding: .42em .98em;
  border-radius: var(--r-pill);
  border: 1px solid var(--line);
  font-size: .86rem;
  font-weight: 600;
  color: var(--ink-soft);
  background: transparent;
  transition: background-color var(--dur) var(--ease), color var(--dur) var(--ease),
              border-color var(--dur) var(--ease);
}
.chip:hover { border-color: var(--sea); color: var(--sea); }
.chip[aria-pressed="true"] { background: var(--sea); border-color: var(--sea); color: var(--cream); }

.tag {
  display: inline-flex;
  align-items: center;
  padding: .26em .72em;
  border-radius: var(--r-pill);
  font-family: var(--font-display);
  font-weight: 800;
  font-size: .71rem;
  letter-spacing: .12em;
  white-space: nowrap;
}
.tag--moss { background: rgba(110, 127, 92, .2); color: #46543A; }
.tag--clay { background: rgba(196, 98, 60, .18); color: #8A3D1E; }
.tag--red { background: var(--red); color: #fff; }
.tag--live { background: var(--sea-ink); color: var(--lime); }

/* 8 面包屑 -------------------------------------------------------------- */
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .1em .6em;
  margin-bottom: 18px;
  font-size: .85rem;
  color: var(--stone);
}
.breadcrumb li { display: flex; align-items: center; gap: .6em; }
.breadcrumb li + li::before { content: "／"; color: var(--silver); }
.breadcrumb a:hover { color: var(--red); }
.breadcrumb [aria-current="page"] { color: var(--ink); font-weight: 600; }
.panel--sea .breadcrumb, .panel--deep .breadcrumb { color: var(--silver); }
.panel--sea .breadcrumb [aria-current="page"], .panel--deep .breadcrumb [aria-current="page"] { color: var(--cream); }

/* 9 分段切换 ------------------------------------------------------------ */
.tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  padding: 6px;
  border-radius: var(--r-pill);
  background: rgba(14, 42, 71, .06);
}
.tab {
  padding: .55em 1.15em;
  border-radius: var(--r-pill);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: .92rem;
  color: var(--ink-soft);
  transition: background-color var(--dur) var(--ease), color var(--dur) var(--ease);
}
.tab:hover { color: var(--sea); }
.tab[aria-selected="true"] { background: var(--sea); color: var(--cream); }
.panel--sea .tabs, .panel--deep .tabs { background: rgba(245, 241, 232, .08); }
.panel--sea .tab, .panel--deep .tab { color: rgba(245, 241, 232, .78); }
.panel--sea .tab[aria-selected="true"], .panel--deep .tab[aria-selected="true"] { background: var(--red); color: #fff; }
.tab-panel { margin-top: clamp(18px, 2.6vw, 28px); }
.tab-panel[hidden] { display: none; }

/* 10 时间轴 ------------------------------------------------------------- */
.timeline {
  position: relative;
  display: flex;
  gap: clamp(14px, 2vw, 22px);
  padding: 4px 0 24px;
  overflow-x: auto;
  overscroll-behavior-x: contain;
  scroll-snap-type: x mandatory;
  scrollbar-width: thin;
  scrollbar-color: var(--stone) transparent;
}
.timeline::-webkit-scrollbar { height: 6px; }
.timeline::-webkit-scrollbar-thumb { background: var(--stone); border-radius: var(--r-pill); }
.timeline-rail { height: 2px; background: var(--line); margin-bottom: 20px; }
.panel--sea .timeline-rail, .panel--deep .timeline-rail { background: var(--line-dark); }
.timeline-item { flex: 0 0 clamp(232px, 30vw, 312px); scroll-snap-align: start; }
.timeline-year {
  font-family: var(--font-editorial);
  font-weight: 600;
  font-size: 1.32rem;
  color: var(--sea);
  margin-bottom: 8px;
}
.panel--sea .timeline-year, .panel--deep .timeline-year { color: var(--cream); }
.timeline-node {
  display: inline-block;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--clay);
}

/* 11 数据模块 ----------------------------------------------------------- */
.data-panel {
  display: grid;
  gap: 1px;
  background: var(--line-dark);
  border: 1px solid var(--line-dark);
  border-radius: var(--r-card);
  overflow: hidden;
}
.data-cell { background: var(--sea); padding: 18px 20px; }
.data-cell--live { background: var(--sea-ink); }
.data-label {
  display: block;
  margin-bottom: 6px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: .76rem;
  letter-spacing: .14em;
  color: var(--silver);
}
.data-num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-weight: 700;
  font-size: clamp(1.5rem, 3vw, 2.1rem);
  line-height: 1.15;
  color: var(--cream);
}
.data-num--live { color: var(--lime); text-shadow: 0 0 22px rgba(182, 255, 60, .28); }
.data-delta {
  display: block;
  margin-top: 4px;
  font-family: var(--font-mono);
  font-size: .85rem;
  color: var(--lime);
}
.data-table { font-size: .92rem; }
.data-table th, .data-table td {
  padding: 12px 14px;
  text-align: left;
  border-bottom: 1px solid var(--line);
}
.data-table th {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: .76rem;
  letter-spacing: .1em;
  color: var(--stone);
}
.data-table td.num { font-family: var(--font-mono); font-variant-numeric: tabular-nums; text-align: right; }
.data-table tbody tr:hover { background: rgba(14, 42, 71, .04); }
.panel--sea .data-table th, .panel--deep .data-table th { color: var(--silver); }
.panel--sea .data-table th, .panel--sea .data-table td,
.panel--deep .data-table th, .panel--deep .data-table td { border-bottom-color: var(--line-dark); }

/* 12 媒体容器 ----------------------------------------------------------- */
.media-frame {
  position: relative;
  overflow: hidden;
  border-radius: var(--r-card);
  background: linear-gradient(135deg, #16324F 0%, #0B1116 100%);
}
.media-frame--red { border: 3px solid var(--red); }
.media-frame--clip { clip-path: polygon(0 0, 100% 4%, 100% 100%, 0 96%); }
.media-fill {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .5s var(--ease);
}
.media-frame:hover .media-fill { transform: scale(1.04); }
.ratio-16x9 { aspect-ratio: 16 / 9; }
.ratio-4x3 { aspect-ratio: 4 / 3; }
.ratio-3x4 { aspect-ratio: 3 / 4; }
.ratio-21x9 { aspect-ratio: 21 / 9; }
.media-timecode {
  position: absolute;
  left: 14px;
  bottom: 14px;
  padding: 4px 10px;
  border-radius: var(--r-pill);
  background: rgba(11, 17, 22, .8);
  color: var(--cream);
  font-family: var(--font-mono);
  font-size: .78rem;
  letter-spacing: .04em;
}
.media-timecode--live { color: var(--lime); }
.media-caption {
  margin-top: 10px;
  font-size: .85rem;
  line-height: 1.6;
  color: var(--stone);
}
.panel--sea .media-caption, .panel--deep .media-caption { color: rgba(245, 241, 232, .68); }

/* 13 头部 --------------------------------------------------------------- */
.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 90;
  padding: 14px var(--gutter) 0;
  pointer-events: none;
  transition: padding var(--dur) var(--ease);
}
.header-inner {
  position: relative;
  pointer-events: auto;
  display: flex;
  align-items: center;
  gap: 12px;
  width: 100%;
  max-width: var(--shell);
  margin-inline: auto;
}
.skip-link {
  position: absolute;
  left: var(--gutter);
  top: 14px;
  z-index: 120;
  pointer-events: auto;
  padding: .7em 1.3em;
  border-radius: var(--r-pill);
  background: var(--red);
  color: #fff;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: .9rem;
  transform: translateY(-180%);
  transition: transform var(--dur) var(--ease);
}
.skip-link:focus { transform: translateY(0); }
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  pointer-events: none;
}
.scroll-progress-bar {
  display: block;
  height: 100%;
  width: 100%;
  transform: scaleX(0);
  transform-origin: 0 50%;
  background: linear-gradient(90deg, var(--red), var(--clay));
}
.brand-island {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 9px 18px 9px 12px;
  border-radius: var(--r-pill);
  background: var(--sea);
  color: var(--cream);
  box-shadow: var(--shadow-strong);
  transition: padding var(--dur) var(--ease), transform var(--dur) var(--ease);
}
.brand-mark {
  display: grid;
  place-items: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--red);
  color: var(--cream);
  flex: none;
}
.brand-name {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1.02rem;
  letter-spacing: .05em;
}
.nav-capsules {
  position: relative;
  display: block;
  margin-left: auto;
  padding: 6px;
  border-radius: var(--r-pill);
  background: rgba(245, 241, 232, .95);
  box-shadow: var(--shadow-strong);
}
.nav-list { display: flex; align-items: center; gap: 4px; }
.nav-link {
  display: inline-block;
  padding: .5em 1.05em;
  border-radius: var(--r-pill);
  color: var(--stone);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: .92rem;
  white-space: nowrap;
  transition: background-color var(--dur) var(--ease), color var(--dur) var(--ease);
}
.nav-link:hover { background: rgba(14, 42, 71, .08); color: var(--sea); }
.nav-link[aria-current="page"] { background: var(--sea); color: var(--cream); font-weight: 800; }
.header-tail { display: flex; align-items: center; gap: 10px; flex: none; }
.live-capsule {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: .5em 1em;
  border-radius: var(--r-pill);
  background: var(--sea-ink);
  color: var(--cream);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: .84rem;
  box-shadow: var(--shadow-strong);
}
.live-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--lime);
  flex: none;
  animation: live-pulse 2.4s var(--ease) infinite;
}
@keyframes live-pulse {
  0% { box-shadow: 0 0 0 0 rgba(182, 255, 60, .55); }
  70% { box-shadow: 0 0 0 10px rgba(182, 255, 60, 0); }
  100% { box-shadow: 0 0 0 0 rgba(182, 255, 60, 0); }
}
.nav-toggle {
  display: none;
  align-items: center;
  gap: 9px;
  padding: .55em 1.1em;
  border-radius: var(--r-pill);
  background: rgba(245, 241, 232, .95);
  color: var(--sea);
  font-family: var(--font-display);
  font-weight: 800;
  font-size: .88rem;
  box-shadow: var(--shadow-strong);
  transition: background-color var(--dur) var(--ease), color var(--dur) var(--ease);
}
.nav-toggle-bars {
  position: relative;
  display: block;
  width: 16px;
  height: 2px;
  border-radius: 2px;
  background: currentColor;
  flex: none;
}
.nav-toggle-bars::before, .nav-toggle-bars::after {
  content: "";
  position: absolute;
  left: 0;
  width: 16px;
  height: 2px;
  border-radius: 2px;
  background: currentColor;
  transition: transform var(--dur) var(--ease), top var(--dur) var(--ease);
}
.nav-toggle-bars::before { top: -5px; }
.nav-toggle-bars::after { top: 5px; }
.site-header[data-open] .nav-toggle { background: var(--red); color: #fff; }
.site-header[data-open] .nav-toggle-bars { background: transparent; }
.site-header[data-open] .nav-toggle-bars::before { top: 0; transform: rotate(45deg); }
.site-header[data-open] .nav-toggle-bars::after { top: 0; transform: rotate(-45deg); }

/* 展开后的浮岛面板（桌面收拢态与移动端共用） */
.site-header[data-open] .nav-capsules {
  position: absolute;
  top: calc(100% + 12px);
  right: 0;
  left: auto;
  display: block;
  min-width: min(286px, calc(100vw - 2 * var(--gutter)));
  padding: 10px;
  border-radius: 24px;
  background: rgba(245, 241, 232, .98);
  box-shadow: var(--shadow-strong);
}
.site-header[data-open] .nav-list { flex-direction: column; align-items: stretch; gap: 2px; }
.site-header[data-open] .nav-link { padding: .72em 1.05em; font-size: .98rem; }

/* 14 页脚 --------------------------------------------------------------- */
.site-footer {
  background: var(--sea-ink);
  color: var(--cream);
  padding-top: clamp(44px, 7vw, 84px);
}
.footer-top {
  display: grid;
  grid-template-columns: minmax(0, 4fr) minmax(0, 8fr);
  gap: clamp(28px, 4vw, 60px);
  padding-bottom: clamp(26px, 4vw, 46px);
  border-bottom: 1px solid var(--line-dark);
}
.footer-brand { display: flex; flex-direction: column; align-items: flex-start; gap: 10px; }
.footer-brand-mark {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: var(--red);
  color: var(--cream);
}
.footer-brand-name {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1.28rem;
  letter-spacing: .07em;
}
.footer-brand-line {
  margin: 0;
  max-width: 34ch;
  font-size: .94rem;
  line-height: 1.7;
  color: rgba(245, 241, 232, .68);
}
.footer-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: clamp(20px, 3vw, 36px);
}
.footer-block-title {
  margin-bottom: 12px;
  font-family: var(--font-editorial);
  font-weight: 600;
  font-size: 1.02rem;
  letter-spacing: .04em;
  color: var(--cream);
}
.footer-links { display: flex; flex-direction: column; gap: 8px; }
.footer-links a {
  font-size: .92rem;
  color: rgba(245, 241, 232, .72);
  transition: color var(--dur) var(--ease);
}
.footer-links a:hover { color: var(--cream); text-decoration: underline; text-decoration-color: var(--red); text-underline-offset: 4px; }
.footer-note {
  padding: clamp(20px, 3vw, 30px) 0;
  max-width: 84ch;
  border-bottom: 1px solid var(--line-dark);
  font-size: .9rem;
  line-height: 1.85;
  color: rgba(245, 241, 232, .66);
}
.footer-legal {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 24px;
  padding: 20px 0;
  border-bottom: 1px solid var(--line-dark);
  font-size: .88rem;
}
.footer-legal a { color: rgba(245, 241, 232, .74); }
.footer-legal a:hover { color: var(--cream); text-decoration: underline; text-underline-offset: 4px; }
.footer-contact {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 18px 30px;
  padding: clamp(20px, 3vw, 32px) 0;
}
.footer-contact-item { display: flex; flex-direction: column; gap: 4px; }
.footer-contact-label {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: .73rem;
  letter-spacing: .18em;
  color: var(--silver);
}
.footer-contact-value { font-size: .94rem; line-height: 1.6; color: rgba(245, 241, 232, .86); }
.footer-contact-value--mono { font-family: var(--font-mono); font-variant-numeric: tabular-nums; }
.footer-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 24px;
  padding: 0 0 34px;
  font-size: .82rem;
  color: rgba(245, 241, 232, .52);
}
.footer-icp { font-family: var(--font-mono); letter-spacing: .02em; }

/* 15 动效 --------------------------------------------------------------- */
[data-reveal] {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity .5s var(--ease), transform .5s var(--ease);
  transition-delay: var(--reveal-delay, 0ms);
}
[data-reveal].is-visible { opacity: 1; transform: none; }

/* 16 响应式 ------------------------------------------------------------- */
@media (max-width: 1080px) {
  .nav-capsules { display: none; }
  .nav-toggle { display: inline-flex; }
  .grid--split, .grid--split-rev { grid-template-columns: minmax(0, 1fr); }
  .span-4, .span-5, .span-7, .span-8 { grid-column: span 12; }
  .grid--3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .footer-top { grid-template-columns: minmax(0, 1fr); }
}
@media (min-width: 1081px) {
  .nav-toggle { display: none; }
  .site-header[data-condensed] { padding-top: 9px; }
  .site-header[data-condensed] .brand-island { padding: 7px 15px 7px 10px; }
  .site-header[data-condensed] .nav-toggle { display: inline-flex; }
  .site-header[data-condensed]:not([data-open]) .nav-capsules { display: none; }
}
@media (max-width: 860px) {
  body { font-size: 16px; }
  .grid--2, .grid--3 { grid-template-columns: minmax(0, 1fr); }
  .footer-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 700px) {
  .timeline { flex-direction: column; overflow-x: visible; scroll-snap-type: none; padding-bottom: 6px; }
  .timeline-item { flex: 1 1 auto; width: 100%; }
  .media-frame--clip { clip-path: none; }
  .tabs { border-radius: var(--r-card); }
}
@media (max-width: 560px) {
  .brand-name { font-size: .96rem; }
  .live-text {
    position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
    overflow: hidden; clip-path: inset(50%); white-space: nowrap;
  }
  .live-capsule { width: 36px; height: 36px; justify-content: center; padding: 0; }
  .footer-grid { grid-template-columns: minmax(0, 1fr); }
}
@media (max-width: 420px) {
  .nav-toggle-text { display: none; }
  .nav-toggle { padding: .6em .8em; }
  .brand-island { padding: 8px 14px 8px 10px; }
}

/* 17 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] { opacity: 1; transform: none; }
  .media-frame:hover .media-fill { transform: none; }
}