/* =====================================================================
   奇迹电游 · 共享样式 /assets/site.css
   风格：深空底 · 锐利直角 · 细线精密网格 · 清透渐变 · 竞技科技
   ===================================================================== */

/* ---------- reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body, h1, h2, h3, h4, p, ul, ol, dl, dd, figure, blockquote { margin: 0; }
ul, ol { padding: 0; }
img, picture, svg { max-width: 100%; display: block; }
button, input, select, textarea { font: inherit; color: inherit; }

/* ---------- tokens ---------- */
:root {
  --bg-deep: #070B1F;
  --bg-panel: #0E1533;
  --blue: #2F6BFF;
  --violet: #7A4DFF;
  --cyan: #2BF5E0;
  --orange: #FF8A3D;
  --line: #26315C;
  --text: #C9D3F2;
  --text-strong: #F5F8FF;
  --text-dim: rgba(201, 211, 242, 0.62);
  --green: #37D67A;
  --amber: #FFC53D;
  --radius: 2px;
  --wrap: 1280px;
  --gutter: clamp(20px, 4vw, 40px);
  --dock-space: 104px;
  --font-title: "Noto Sans SC", "Source Han Sans SC", "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", sans-serif;
  --font-body: "Noto Sans SC", "Source Han Sans SC", "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", sans-serif;
  --font-mono: "JetBrains Mono", "IBM Plex Mono", "SFMono-Regular", Consolas, "Liberation Mono", monospace;
}

/* ---------- base ---------- */
body {
  background: var(--bg-deep);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 16px;
  font-weight: 400;
  line-height: 1.75;
  letter-spacing: 0.005em;
  min-height: 100vh;
  overflow-x: hidden;
}
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(38, 49, 92, 0.42) 1px, transparent 1px),
    linear-gradient(90deg, rgba(38, 49, 92, 0.42) 1px, transparent 1px);
  background-size: 96px 96px;
  opacity: 0.3;
}
.site-header, .site-footer, #main-content, .site-main { position: relative; z-index: 1; }

h1, h2, h3, h4 {
  font-family: var(--font-title);
  color: var(--text-strong);
  font-weight: 900;
  letter-spacing: 0.03em;
  line-height: 1.18;
}
h1 { font-size: clamp(32px, 4vw, 56px); }
h2 { font-size: clamp(26px, 3.2vw, 44px); }
h3 { font-size: clamp(20px, 2vw, 26px); }
p { margin: 0 0 1.2em; }
a { color: var(--cyan); text-decoration: none; }
a:hover { color: var(--text-strong); }
strong, b { color: var(--text-strong); font-weight: 700; }
.mono { font-family: var(--font-mono); letter-spacing: 0.04em; }
::selection { background: rgba(43, 245, 224, 0.28); color: var(--text-strong); }

:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}
a:focus-visible, button:focus-visible, input:focus-visible { outline: 2px solid var(--cyan); outline-offset: 2px; }

/* ---------- layout helpers ---------- */
.wrap {
  width: 100%;
  max-width: var(--wrap);
  margin: 0 auto;
  padding-inline: var(--gutter);
}
.grid { display: grid; gap: clamp(16px, 2vw, 24px); }
.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(4, minmax(0, 1fr)); }
.grid--7-5 { grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); }
.panel-stack { display: grid; gap: 24px; }
.hr-thin { border: 0; border-top: 1px solid var(--line); margin: 0; }

/* ---------- panels ---------- */
.panel {
  position: relative;
  background: var(--bg-panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: clamp(20px, 3vw, 36px);
}
.panel--wide { padding-inline: clamp(24px, 4vw, 56px); }
.panel__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px 20px;
  padding-bottom: 14px;
  margin-bottom: 22px;
  border-bottom: 1px solid var(--line);
}
.panel__index {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.16em;
  color: var(--cyan);
}
.panel__title { font-size: clamp(22px, 2.4vw, 28px); margin: 0; }
.panel__status {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  padding: 3px 10px;
  border: 1px solid currentColor;
  border-radius: var(--radius);
}
.panel__status--live { color: var(--green); }
.panel__status--work { color: var(--amber); }
.panel__status--plan { color: var(--cyan); }
.panel__status--alert { color: var(--orange); }

/* ---------- type components ---------- */
.kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.22em;
  color: var(--cyan);
}
.kicker::before {
  content: "";
  width: 28px;
  height: 1px;
  background: linear-gradient(90deg, var(--blue), var(--cyan));
}
.lede { font-size: clamp(17px, 1.5vw, 20px); color: var(--text); max-width: 62ch; }
.display-1 {
  font-family: var(--font-title);
  font-weight: 900;
  font-size: clamp(56px, 9vw, 120px);
  line-height: 1.0;
  letter-spacing: 0.02em;
  color: var(--text-strong);
}
.prose { max-width: 72ch; font-size: 17px; line-height: 1.85; }
.prose h2 { font-size: clamp(24px, 2.4vw, 32px); margin: 1.8em 0 0.6em; }
.prose h3 { font-size: 20px; margin: 1.6em 0 0.5em; }
.prose ul, .prose ol { margin: 0 0 1.2em; padding-left: 1.3em; }
.prose li { margin-bottom: 0.4em; }
.prose a { border-bottom: 1px solid rgba(43, 245, 224, 0.35); }

/* ---------- buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5em;
  padding: 11px 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: transparent;
  color: var(--text-strong);
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-decoration: none;
  cursor: pointer;
  transition: border-color 0.18s ease, color 0.18s ease, background-color 0.18s ease;
}
.btn:hover { border-color: var(--violet); color: #fff; }
.btn--primary {
  border-color: var(--blue);
  background: linear-gradient(100deg, rgba(47, 107, 255, 0.24), rgba(122, 77, 255, 0.16));
}
.btn--primary:hover { border-color: var(--cyan); color: var(--text-strong); }
.btn--accent { border-color: var(--orange); color: #FFD6BC; background: rgba(255, 138, 61, 0.1); }
.btn--accent:hover { border-color: var(--orange); color: #FFF3EA; background: rgba(255, 138, 61, 0.2); }

/* ---------- tags / status ---------- */
.tag {
  display: inline-flex;
  align-items: center;
  padding: 3px 9px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.08em;
  color: var(--text);
}
.tag--cyan { color: var(--cyan); border-color: rgba(43, 245, 224, 0.4); }
.tag--orange { color: var(--orange); border-color: rgba(255, 138, 61, 0.42); }
.status-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border: 1px solid currentColor;
  border-radius: var(--radius);
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.1em;
}
.status-chip::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: currentColor; }
.status-chip--received { color: var(--cyan); }
.status-chip--working { color: var(--amber); }
.status-chip--fixed { color: var(--green); }

/* ---------- index list / stats ---------- */
.index-list { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--line); }
.index-list > li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 14px;
  align-items: baseline;
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
}
.index-list__num { font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.12em; color: var(--cyan); }
.index-list__title { color: var(--text-strong); font-weight: 500; }
.index-list__meta { font-family: var(--font-mono); font-size: 12px; color: var(--text-dim); }
.stat { display: grid; gap: 4px; }
.stat__value { font-family: var(--font-mono); font-size: clamp(24px, 3vw, 36px); color: var(--cyan); letter-spacing: 0.02em; line-height: 1.2; }
.stat__label { font-size: 13px; letter-spacing: 0.08em; color: var(--text-dim); }

/* ---------- switch (共享切换控件) ---------- */
.switch {
  display: flex;
  flex-wrap: wrap;
  gap: clamp(12px, 2vw, 26px);
  margin: 0 0 20px;
  padding: 0;
  border-bottom: 1px solid var(--line);
}
.switch__btn {
  position: relative;
  padding: 10px 2px;
  border: 0;
  background: none;
  font-size: 14.5px;
  letter-spacing: 0.06em;
  color: var(--text-dim);
  cursor: pointer;
  transition: color 0.16s ease;
}
.switch__btn:hover { color: var(--cyan); }
.switch__btn[aria-selected="true"] { color: var(--text-strong); font-weight: 700; }
.switch__btn[aria-selected="true"]::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: -1px;
  height: 2px;
  background: var(--cyan);
}
[data-tab-panel][hidden] { display: none; }
[data-search-hidden="true"] { display: none !important; }

/* ---------- media ---------- */
.media {
  position: relative;
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background:
    linear-gradient(135deg, rgba(47, 107, 255, 0.2), rgba(122, 77, 255, 0.1) 48%, rgba(43, 245, 224, 0.12) 100%),
    var(--bg-panel);
}
.media::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(115deg, transparent 42%, rgba(43, 245, 224, 0.22) 50%, transparent 58%),
    linear-gradient(rgba(38, 49, 92, 0.5) 1px, transparent 1px),
    linear-gradient(90deg, rgba(38, 49, 92, 0.5) 1px, transparent 1px);
  background-size: 100% 100%, 48px 48px, 48px 48px;
  opacity: 0.9;
}
.media img, .media picture img { width: 100%; height: 100%; object-fit: cover; }
.media--wide { aspect-ratio: 21 / 9; }
.media--square { aspect-ratio: 1 / 1; }
.media--portrait { aspect-ratio: 3 / 4; }
.media__caption, .figure__caption { margin-top: 8px; font-size: 13px; color: var(--text-dim); }

/* ---------- breadcrumb ---------- */
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  padding: 18px 0 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--text-dim);
}
.breadcrumb ol { display: flex; flex-wrap: wrap; gap: 10px; list-style: none; margin: 0; padding: 0; }
.breadcrumb li + li::before { content: "/"; margin-right: 10px; color: var(--line); }
.breadcrumb a { color: var(--text-dim); border-bottom: 1px solid transparent; }
.breadcrumb a:hover { color: var(--cyan); border-bottom-color: var(--cyan); }

/* =====================================================================
   头部 · 双层信息导航
   ===================================================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 60;
  background: rgba(7, 11, 31, 0.93);
  border-bottom: 1px solid var(--line);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
}
.site-header::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--blue), var(--violet) 42%, var(--cyan) 78%, var(--orange));
  pointer-events: none;
}
.site-header__inner {
  max-width: var(--wrap);
  margin: 0 auto;
  padding-inline: var(--gutter);
}
.header-top {
  display: flex;
  align-items: center;
  gap: clamp(14px, 2.4vw, 32px);
  min-height: 66px;
  padding-block: 10px;
  border-bottom: 1px solid var(--line);
}
.header-main {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 58px;
  padding-block: 8px;
}

/* 品牌 */
.brand { display: inline-flex; align-items: center; gap: 12px; color: var(--text-strong); text-decoration: none; flex: 0 0 auto; }
.brand__mark {
  position: relative;
  display: block;
  width: 28px;
  height: 28px;
  flex: 0 0 auto;
  border-radius: 1px;
  background: linear-gradient(135deg, var(--blue), var(--violet));
  box-shadow: inset 0 0 0 1px rgba(245, 248, 255, 0.22);
}
.brand__mark::after {
  content: "";
  position: absolute;
  left: -5px; right: -5px; top: 50%;
  height: 2px;
  background: var(--cyan);
  transform: translateY(-50%) rotate(-45deg);
}
.brand__text { display: block; }
.brand__name { display: block; font-family: var(--font-title); font-weight: 900; font-size: 20px; letter-spacing: 0.08em; line-height: 1.1; }
.brand__motto { display: block; font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.24em; color: var(--cyan); }

/* 导航 */
.nav-list { display: flex; align-items: center; gap: clamp(14px, 2vw, 28px); list-style: none; margin: 0; padding: 0; }
.nav-list a {
  position: relative;
  display: inline-block;
  padding: 6px 0;
  color: var(--text);
  font-size: 15px;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-decoration: none;
  transition: color 0.16s ease;
}
.nav-list a::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: 0;
  height: 2px;
  background: var(--cyan);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 0.18s ease;
}
.nav-list a:hover { color: var(--text-strong); }
.nav-list a:hover::after { transform: scaleX(1); }
.nav-list a[aria-current="page"] { color: var(--cyan); }
.nav-list a[aria-current="page"]::after { transform: scaleX(1); }
.nav-top { margin-left: auto; }
.nav-top .nav-list a { font-size: 13.5px; letter-spacing: 0.12em; color: var(--text-dim); }
.nav-top .nav-list a:hover { color: var(--cyan); }

/* 工具区 */
.header-utility { display: flex; align-items: center; gap: 14px; flex: 0 0 auto; }
.version-badge {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 5px 10px;
  border: 1px solid rgba(43, 245, 224, 0.45);
  border-radius: var(--radius);
  background: rgba(43, 245, 224, 0.07);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--cyan);
  white-space: nowrap;
}
.version-badge__dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 0 3px rgba(55, 214, 122, 0.16);
}
.search-toggle {
  padding: 6px 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: none;
  color: var(--text);
  font-size: 13.5px;
  letter-spacing: 0.06em;
  cursor: pointer;
  transition: border-color 0.16s ease, color 0.16s ease;
}
.search-toggle:hover, .search-toggle[aria-expanded="true"] { border-color: var(--cyan); color: var(--cyan); }

/* 移动导航按钮 */
.nav-toggle {
  display: none;
  align-items: center;
  gap: 9px;
  padding: 8px 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: none;
  color: var(--text-strong);
  font-size: 13px;
  letter-spacing: 0.1em;
  cursor: pointer;
}
.nav-toggle__bars {
  display: block;
  width: 18px;
  height: 12px;
  background:
    linear-gradient(currentColor, currentColor) top left / 100% 2px no-repeat,
    linear-gradient(currentColor, currentColor) center left / 100% 2px no-repeat,
    linear-gradient(currentColor, currentColor) bottom left / 100% 2px no-repeat;
}
.site-header[data-open] .nav-toggle { border-color: var(--cyan); color: var(--cyan); }

/* 站内搜索面板 */
.search-panel {
  display: grid;
  gap: 8px;
  padding: 16px 0 20px;
  border-top: 1px solid var(--line);
}
.search-panel[hidden] { display: none; }
.search-panel__label { font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.16em; color: var(--text-dim); }
.search-panel__input {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--bg-panel);
  color: var(--text-strong);
}
.search-panel__input::placeholder { color: rgba(201, 211, 242, 0.4); }
.search-panel__input:focus-visible { border-color: var(--cyan); outline: none; box-shadow: 0 0 0 2px rgba(43, 245, 224, 0.2); }
.search-panel__hint { margin: 0; font-size: 13px; color: var(--text-dim); }

/* 阅读进度 */
.progress {
  position: absolute;
  left: 0; right: 0; bottom: -1px;
  height: 2px;
  background: rgba(38, 49, 92, 0.65);
  overflow: hidden;
}
.progress__bar {
  display: block;
  width: 100%;
  height: 100%;
  transform: scaleX(0);
  transform-origin: left center;
  background: linear-gradient(90deg, var(--blue), var(--cyan));
  transition: background 0.3s ease;
}
.progress[data-stage="2"] .progress__bar { background: linear-gradient(90deg, var(--blue), var(--violet), var(--cyan)); }
.progress[data-stage="3"] .progress__bar { background: linear-gradient(90deg, var(--violet), var(--cyan), var(--orange)); }

/* 收拢态 */
.site-header[data-compact] .header-top { min-height: 52px; padding-block: 6px; }
.site-header[data-compact] .brand__motto { display: none; }
.site-header[data-compact] .brand__mark { width: 22px; height: 22px; }
.site-header[data-compact] .header-main { min-height: 50px; padding-block: 4px; }

/* skip link */
.skip-link {
  position: absolute;
  top: -100px;
  left: var(--gutter);
  z-index: 90;
  padding: 10px 16px;
  border-radius: var(--radius);
  background: var(--cyan);
  color: #05122A;
  font-weight: 700;
  text-decoration: none;
  transition: top 0.15s ease;
}
.skip-link:focus { top: 10px; color: #05122A; }

/* =====================================================================
   页脚
   ===================================================================== */
.site-footer {
  margin-top: clamp(48px, 8vw, 96px);
  border-top: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(14, 21, 51, 0.92), var(--bg-deep) 72%);
}
.footer__inner {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: clamp(36px, 5vw, 64px) var(--gutter) 0;
}
.footer__grid {
  display: grid;
  grid-template-columns: minmax(230px, 1.5fr) repeat(3, minmax(130px, 1fr));
  gap: clamp(24px, 3vw, 48px);
}
.brand--footer { margin-bottom: 4px; }
.footer-brand__line { margin: 14px 0 0; max-width: 32ch; font-size: 15px; color: var(--text); }
.footer-brand__meta { margin: 12px 0 0; font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.08em; color: var(--cyan); }
.footer-col__title {
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.16em;
  color: var(--text-strong);
  margin: 0 0 14px;
}
.footer-col ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.footer-col a {
  font-size: 14.5px;
  color: var(--text);
  border-bottom: 1px solid transparent;
  transition: color 0.16s ease, border-color 0.16s ease;
}
.footer-col a:hover { color: var(--cyan); border-bottom-color: var(--cyan); }
.footer__contact {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 18px clamp(20px, 3vw, 48px);
  padding-top: 24px;
  border-top: 1px solid var(--line);
}
.contact-item { display: grid; gap: 4px; }
.contact-item__label { font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.16em; color: var(--text-dim); }
.contact-item__value { font-size: 15px; color: var(--text-strong); word-break: break-word; }
.footer__note {
  grid-column: 1 / -1;
  margin: 0;
  max-width: 78ch;
  font-size: 13.5px;
  color: var(--text-dim);
}
.footer__status {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 20px;
  margin-top: clamp(26px, 4vw, 42px);
  padding: 16px 0;
  border-top: 1px solid var(--line);
}
.footer__status-note { font-size: 13px; color: var(--text-dim); }
.footer__legal { border-top: 1px solid var(--line); margin-top: 0; }
.footer__legal-inner {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 20px var(--gutter) calc(var(--dock-space) + 16px);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px 28px;
  font-size: 13px;
  color: var(--text-dim);
}
.footer__legal-inner .mono { color: var(--text); }

/* 悬浮胶囊工具栏 */
.dock {
  position: fixed;
  left: 50%;
  bottom: clamp(12px, 2vw, 24px);
  transform: translateX(-50%);
  z-index: 70;
  display: flex;
  align-items: center;
  gap: clamp(10px, 1.6vw, 22px);
  max-width: calc(100vw - 24px);
  padding: 9px 10px 9px 20px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(14, 21, 51, 0.95);
  box-shadow: 0 14px 44px rgba(4, 7, 20, 0.6);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
}
.dock__label { font-family: var(--font-mono); font-size: 11.5px; letter-spacing: 0.16em; color: var(--text-dim); white-space: nowrap; }
.dock__value { font-size: 13px; color: var(--text); white-space: nowrap; }
.dock__value .mono { color: var(--cyan); font-size: 13px; }
.dock__cta { padding: 9px 18px; border-radius: 999px; font-size: 14px; white-space: nowrap; }
.dock__top {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  flex: 0 0 auto;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: transparent;
  color: var(--text);
  font-size: 16px;
  line-height: 1;
  cursor: pointer;
  transition: border-color 0.16s ease, color 0.16s ease;
}
.dock__top:hover { border-color: var(--cyan); color: var(--cyan); }
.dock__top[hidden] { display: none; }

/* =====================================================================
   响应式
   ===================================================================== */
@media (max-width: 1024px) {
  .grid--3, .grid--4, .grid--7-5 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .footer__grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .footer-brand { grid-column: 1 / -1; }
}

@media (max-width: 900px) {
  .header-top { flex-wrap: wrap; min-height: 58px; gap: 10px 14px; }
  .nav-top { display: none; }
  .nav-main { display: none; }
  .header-cta { display: none; }
  .nav-toggle { display: inline-flex; margin-left: auto; }
  .header-main { display: block; padding-block: 0; min-height: 0; border-top: 0; }
  .site-header[data-compact] .brand__motto { display: none; }
  .site-header[data-open] .site-header__inner {
    max-height: calc(100vh - 6px);
    overflow-y: auto;
    padding-bottom: 20px;
  }
  .site-header[data-open] .nav-top {
    display: block;
    order: 9;
    flex-basis: 100%;
    width: 100%;
    margin-left: 0;
    padding-top: 14px;
    border-top: 1px solid var(--line);
  }
  .site-header[data-open] .nav-top .nav-list { flex-direction: row; flex-wrap: wrap; gap: 18px; }
  .site-header[data-open] .nav-top .nav-list a { font-size: 13.5px; padding: 4px 0; }
  .site-header[data-open] .header-main { display: block; padding-block: 4px 0; }
  .site-header[data-open] .nav-main { display: block; width: 100%; }
  .site-header[data-open] .nav-main .nav-list { flex-direction: column; align-items: stretch; gap: 0; }
  .site-header[data-open] .nav-main .nav-list a {
    display: block;
    padding: 13px 0;
    font-size: 16px;
    border-bottom: 1px solid var(--line);
  }
  .site-header[data-open] .nav-main .nav-list a::after { display: none; }
  .site-header[data-open] .nav-main .nav-list a[aria-current="page"] { color: var(--cyan); }
  .site-header[data-open] .header-cta { display: inline-flex; width: 100%; margin-top: 16px; }
}

@media (max-width: 640px) {
  .grid--2, .grid--3, .grid--4, .grid--7-5 { grid-template-columns: minmax(0, 1fr); }
  .footer__grid { grid-template-columns: minmax(0, 1fr); }
  .index-list > li { grid-template-columns: auto minmax(0, 1fr); }
  .index-list__meta { grid-column: 2; }
  .dock { padding: 8px 8px 8px 16px; gap: 10px; }
  .dock__label, .dock__value { display: none; }
  .search-panel__hint { font-size: 12.5px; }
  .footer__legal-inner { flex-direction: column; align-items: flex-start; }
}

/* =====================================================================
   可访问性
   ===================================================================== */
@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;
  }
  .nav-list a::after { transition: none; }
}