/* =========================================================
   壹趣体育官网 · 共享样式 /assets/site.css
   夜场草坪墨绿 + 记分牌荧光青 + 即时橙红
   ========================================================= */

/* ---------- 1. Reset ---------- */
*,
*::before,
*::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 132px;
  background-color: #06120E;
}

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

/* ---------- 2. 变量 ---------- */
:root {
  --yq-ink: #06120E;
  --yq-ink-2: #0C211A;
  --yq-turf: #123A2C;
  --yq-paper: #E8E1D2;
  --yq-paper-mid: #B9B2A2;
  --yq-on-paper: #14201B;
  --yq-cyan: #2BE3C0;
  --yq-cyan-soft: #7DF5DE;
  --yq-orange: #FF5A2B;
  --yq-amber: #F2C230;
  --yq-line: #6E7A73;
  --yq-white: #F7F4EC;

  --yq-font-body: "PingFang SC", "Hiragino Sans GB", "Source Han Sans SC", "Noto Sans SC", "Microsoft YaHei", "Heiti SC", system-ui, sans-serif;
  --yq-font-display: "PingFang SC", "Hiragino Sans GB", "Source Han Sans SC", "Noto Sans SC", "Microsoft YaHei", system-ui, sans-serif;
  --yq-font-mono: ui-monospace, "SFMono-Regular", Menlo, Consolas, "Liberation Mono", "Courier New", monospace;

  --yq-shell: 1360px;
  --yq-gutter: clamp(16px, 3vw, 40px);
  --yq-ease: cubic-bezier(.22,.68,.3,1);
}

/* ---------- 3. 全局排版 ---------- */
body {
  background-color: var(--yq-ink);
  background-image:
    radial-gradient(1100px 520px at 82% -6%, rgba(43, 227, 192, .10), transparent 60%),
    radial-gradient(900px 500px at 2% 4%, rgba(18, 58, 44, .62), transparent 66%);
  background-repeat: no-repeat;
  color: var(--yq-paper);
  font-family: var(--yq-font-body);
  font-size: 17px;
  font-weight: 400;
  line-height: 1.8;
  letter-spacing: .012em;
  min-height: 100vh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4 { font-weight: 800; line-height: 1.24; letter-spacing: -.01em; color: var(--yq-white); }

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

:focus-visible {
  outline: 3px solid var(--yq-cyan);
  outline-offset: 3px;
}

/* ---------- 4. 容器与骨架工具 ---------- */
.yq-container {
  width: 100%;
  max-width: var(--yq-shell);
  margin: 0 auto;
  padding-left: var(--yq-gutter);
  padding-right: var(--yq-gutter);
}
.yq-container--narrow { max-width: 880px; }
.yq-container--mid { max-width: 1120px; }

.yq-progress {
  position: fixed;
  left: 0;
  top: 0;
  width: 100%;
  height: 3px;
  z-index: 200;
  pointer-events: none;
  transform: scaleX(0);
  transform-origin: 0 50%;
  background: linear-gradient(90deg, var(--yq-cyan) 0%, var(--yq-amber) 62%, var(--yq-orange) 100%);
}

.yq-section { margin-top: clamp(48px, 8vw, 112px); }

.yq-section__head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 16px;
  padding-bottom: 16px;
  margin-bottom: clamp(22px, 3vw, 40px);
  border-bottom: 2px solid var(--yq-turf);
}

.yq-section__num {
  display: block;
  margin-bottom: 8px;
  font-family: var(--yq-font-mono);
  font-size: 11px;
  letter-spacing: .26em;
  text-transform: uppercase;
  color: var(--yq-cyan);
}

.yq-section__title {
  margin: 0;
  font-size: clamp(28px, 3.4vw, 46px);
  font-weight: 900;
  letter-spacing: -.02em;
  line-height: 1.1;
  color: var(--yq-white);
}

.yq-section__note {
  margin: 0;
  max-width: 42ch;
  font-size: 14px;
  line-height: 1.75;
  color: var(--yq-paper-mid);
}

.yq-display {
  margin: 0;
  font-family: var(--yq-font-display);
  font-weight: 200;
  font-size: clamp(52px, 9vw, 140px);
  line-height: .94;
  letter-spacing: -.03em;
  color: var(--yq-white);
}

.yq-emph {
  font-weight: 700;
  color: var(--yq-white);
  border-bottom: 3px solid var(--yq-cyan);
  padding-bottom: 2px;
}

.yq-eyebrow {
  margin: 0;
  font-family: var(--yq-font-mono);
  font-size: 11px;
  letter-spacing: .26em;
  text-transform: uppercase;
  color: var(--yq-cyan);
}

/* ---------- 5. 正文与纸张面板 ---------- */
.yq-prose {
  font-size: 17px;
  line-height: 1.85;
  color: var(--yq-paper);
}
.yq-prose p { margin: 0 0 1.25em; }
.yq-prose h2 {
  margin: 1.8em 0 .7em;
  font-size: clamp(22px, 2.4vw, 30px);
  font-weight: 900;
}
.yq-prose h3 { margin: 1.5em 0 .6em; font-size: 20px; }
.yq-prose ul { margin: 0 0 1.25em; padding-left: 1.1em; list-style: none; }
.yq-prose ul li { position: relative; margin-bottom: .55em; }
.yq-prose ul li::before {
  content: "";
  position: absolute;
  left: -1.1em;
  top: .78em;
  width: 10px;
  height: 3px;
  background: var(--yq-cyan);
}
.yq-prose a {
  color: var(--yq-cyan-soft);
  text-decoration: none;
  border-bottom: 1px solid rgba(43, 227, 192, .45);
  transition: border-color .2s var(--yq-ease), color .2s var(--yq-ease);
}
.yq-prose a:hover { color: var(--yq-white); border-bottom-color: var(--yq-white); }
.yq-prose blockquote {
  margin: 1.6em 0;
  padding: 4px 0 4px 20px;
  border-left: 3px solid var(--yq-cyan);
  color: var(--yq-paper-mid);
}

.yq-paper {
  background: var(--yq-paper);
  color: var(--yq-on-paper);
  padding: clamp(22px, 4vw, 56px);
  border: 2px solid var(--yq-turf);
  box-shadow: 12px 12px 0 rgba(18, 58, 44, .6);
}
.yq-paper h1, .yq-paper h2, .yq-paper h3 { color: var(--yq-on-paper); }
.yq-paper .yq-prose { color: #26332C; }
.yq-paper .yq-prose a { color: #0B5A48; border-bottom-color: rgba(11, 90, 72, .4); }
.yq-paper .yq-prose a:hover { color: var(--yq-on-paper); border-bottom-color: var(--yq-on-paper); }
.yq-paper .yq-eyebrow { color: #0B5A48; }

/* ---------- 6. 面包屑 ---------- */
.yq-crumbs { margin: clamp(18px, 3vw, 34px) 0 0; }
.yq-crumbs__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-family: var(--yq-font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--yq-paper-mid);
}
.yq-crumbs__item + .yq-crumbs__item::before {
  content: "/";
  margin-right: 8px;
  color: var(--yq-line);
}
.yq-crumbs__link {
  text-decoration: none;
  color: var(--yq-paper-mid);
  transition: color .2s var(--yq-ease);
}
.yq-crumbs__link:hover { color: var(--yq-cyan); }
.yq-crumbs__item[aria-current="page"] { color: var(--yq-cyan-soft); }

/* ---------- 7. 按钮 ---------- */
.yq-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 9px 16px;
  border: 2px solid var(--yq-line);
  background: transparent;
  color: var(--yq-paper);
  font-family: var(--yq-font-body);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .07em;
  line-height: 1.4;
  text-decoration: none;
  white-space: nowrap;
  cursor: pointer;
  transition: border-color .22s var(--yq-ease), color .22s var(--yq-ease),
              background-color .22s var(--yq-ease), box-shadow .22s var(--yq-ease),
              transform .18s var(--yq-ease);
}
.yq-btn:hover {
  border-color: var(--yq-cyan);
  color: var(--yq-cyan);
  box-shadow: 4px 4px 0 rgba(43, 227, 192, .22);
  transform: translate(-1px, -1px);
}
.yq-btn--line { border-color: var(--yq-line); }
.yq-btn--ghost { border-color: transparent; background: var(--yq-turf); color: var(--yq-paper); }
.yq-btn--ghost:hover { background: #16402F; border-color: var(--yq-cyan); }
.yq-btn--solid {
  background: var(--yq-cyan);
  border-color: var(--yq-cyan);
  color: var(--yq-ink);
  font-weight: 700;
}
.yq-btn--solid:hover {
  background: var(--yq-cyan-soft);
  border-color: var(--yq-cyan-soft);
  color: var(--yq-ink);
  box-shadow: 5px 5px 0 rgba(43, 227, 192, .3);
}
.yq-btn--alert {
  background: var(--yq-orange);
  border-color: var(--yq-orange);
  color: #1B0803;
  font-weight: 700;
}
.yq-btn--alert:hover { background: #FF7A50; border-color: #FF7A50; color: #1B0803; }
.yq-btn:focus-visible,
.yq-navtoggle:focus-visible,
.yq-totop:focus-visible { outline: 3px solid var(--yq-cyan-soft); outline-offset: 2px; }

/* ---------- 8. 网格与卡片 ---------- */
.yq-grid { display: grid; gap: clamp(18px, 2.4vw, 32px); }
.yq-grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.yq-grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.yq-grid--stagger { align-items: start; }

@media (min-width: 1024px) {
  .yq-grid--stagger > *:nth-child(3n+2) { margin-top: 46px; }
  .yq-grid--stagger > *:nth-child(3n+3) { margin-top: 84px; }
}

.yq-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: clamp(18px, 2.2vw, 28px);
  background: var(--yq-ink-2);
  border: 2px solid var(--yq-turf);
  box-shadow: 8px 8px 0 rgba(12, 33, 26, .88);
  transition: border-color .24s var(--yq-ease), box-shadow .24s var(--yq-ease),
              transform .24s var(--yq-ease);
}
.yq-card:hover {
  border-color: var(--yq-cyan);
  box-shadow: 12px 12px 0 rgba(43, 227, 192, .18);
  transform: translate(-2px, -2px);
}
.yq-card__eyebrow {
  margin: 0;
  font-family: var(--yq-font-mono);
  font-size: 11px;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--yq-cyan);
}
.yq-card__title {
  margin: 0;
  font-size: clamp(19px, 1.7vw, 24px);
  font-weight: 800;
  line-height: 1.32;
  letter-spacing: -.01em;
  color: var(--yq-white);
}
.yq-card__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--yq-paper-mid);
}
.yq-card__meta {
  margin: auto 0 0;
  padding-top: 12px;
  border-top: 1px solid rgba(110, 122, 115, .35);
  font-family: var(--yq-font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--yq-paper-mid);
}
.yq-card--paper {
  background: var(--yq-paper);
  color: var(--yq-on-paper);
  border-color: var(--yq-turf);
}
.yq-card--paper .yq-card__title { color: var(--yq-on-paper); }
.yq-card--paper .yq-card__text { color: #3A4740; }
.yq-card--paper .yq-card__eyebrow { color: #0B5A48; }

/* ---------- 9. 图片容器 ---------- */
.yq-media {
  position: relative;
  display: block;
  width: 100%;
  overflow: hidden;
  background: var(--yq-turf);
  border: 2px solid var(--yq-turf);
}
.yq-media > img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(.92) contrast(1.06);
}
.yq-media--16x9 { aspect-ratio: 16 / 9; }
.yq-media--4x3 { aspect-ratio: 4 / 3; }
.yq-media--1x1 { aspect-ratio: 1 / 1; }
.yq-media--3x4 { aspect-ratio: 3 / 4; }
.yq-media--wide { aspect-ratio: 21 / 9; }
.yq-media--framed { box-shadow: 10px 10px 0 rgba(43, 227, 192, .16); }
.yq-media__cap {
  margin: 8px 0 0;
  font-family: var(--yq-font-mono);
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--yq-paper-mid);
}
.yq-media__tag {
  position: absolute;
  left: 0;
  top: 0;
  padding: 5px 10px;
  background: var(--yq-orange);
  color: #1B0803;
  font-family: var(--yq-font-mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .12em;
}

/* ---------- 10. 显现动画 ---------- */
@media (prefers-reduced-motion: no-preference) {
  html.yq-motion .yq-reveal {
    opacity: 0;
    transform: translateY(12px);
    transition: opacity .32s var(--yq-ease), transform .32s var(--yq-ease);
    will-change: opacity, transform;
  }
  html.yq-motion .yq-reveal.is-visible {
    opacity: 1;
    transform: none;
  }
}

/* ---------- 11. 头部 ---------- */
.yq-header {
  position: sticky;
  top: 0;
  z-index: 90;
  background: linear-gradient(180deg, rgba(6, 18, 14, .95) 0%, rgba(6, 18, 14, .74) 64%, rgba(6, 18, 14, .08) 100%);
  transition: background-color .3s var(--yq-ease), box-shadow .3s var(--yq-ease);
}
.yq-header.is-scrolled {
  background: rgba(6, 18, 14, .98);
  box-shadow: 0 1px 0 rgba(110, 122, 115, .45), 0 24px 46px -30px rgba(0, 0, 0, .95);
}

.yq-header__shell {
  max-width: var(--yq-shell);
  margin: 0 auto;
  padding: 0 var(--yq-gutter);
}

.yq-header__row {
  position: relative;
  display: flex;
  align-items: center;
  gap: clamp(12px, 2vw, 30px);
  min-height: 74px;
}

.yq-skip {
  position: absolute;
  left: 12px;
  top: 6px;
  z-index: 130;
  padding: 8px 14px;
  background: var(--yq-cyan);
  color: var(--yq-ink);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .04em;
  text-decoration: none;
  transform: translateY(-200%);
  transition: transform .2s var(--yq-ease);
}
.yq-skip:focus-visible { transform: translateY(0); }

/* 品牌署名 */
.yq-id {
  display: flex;
  flex-direction: column;
  gap: 3px;
  min-width: 0;
  flex: 0 0 auto;
}
.yq-id__link {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  text-decoration: none;
}
.yq-id__mark {
  font-family: var(--yq-font-display);
  font-size: 22px;
  font-weight: 900;
  letter-spacing: -.02em;
  color: var(--yq-white);
}
.yq-id__name {
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--yq-paper-mid);
}
.yq-id__tag {
  margin: 0;
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--yq-cyan);
  opacity: .9;
}

/* 导航 */
.yq-nav { flex: 1 1 auto; min-width: 0; }
.yq-nav__list {
  display: flex;
  align-items: center;
  gap: clamp(6px, 1.3vw, 22px);
}
.yq-nav__link {
  position: relative;
  display: inline-block;
  padding: 7px 2px;
  font-size: 15px;
  font-weight: 500;
  letter-spacing: .02em;
  color: var(--yq-paper);
  text-decoration: none;
  white-space: nowrap;
  transition: color .22s var(--yq-ease);
}
.yq-nav__link::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 3px;
  background: var(--yq-cyan);
  transform: scaleX(0);
  transform-origin: 0 50%;
  transition: transform .24s var(--yq-ease);
}
.yq-nav__link:hover { color: var(--yq-white); }
.yq-nav__link:hover::after { transform: scaleX(1); }
.yq-nav__link[aria-current="page"] { color: var(--yq-cyan-soft); }
.yq-nav__link[aria-current="page"]::after { transform: scaleX(1); }

/* 工具区 */
.yq-tools {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-left: auto;
  flex: 0 0 auto;
}

.yq-live {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  margin: 0;
  padding: 5px 11px;
  border: 1px solid rgba(255, 90, 43, .55);
  background: rgba(255, 90, 43, .13);
  font-family: var(--yq-font-mono);
  font-size: 12px;
  letter-spacing: .05em;
  color: var(--yq-orange);
}
.yq-live__dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--yq-orange);
  animation: yq-pulse 1.9s ease-out infinite;
}
.yq-live__tag { font-weight: 700; }
.yq-live__score { color: var(--yq-white); font-weight: 700; }

@keyframes yq-pulse {
  0% { box-shadow: 0 0 0 0 rgba(255, 90, 43, .65); }
  70% { box-shadow: 0 0 0 9px rgba(255, 90, 43, 0); }
  100% { box-shadow: 0 0 0 0 rgba(255, 90, 43, 0); }
}

/* 移动端菜单按钮 */
.yq-navtoggle {
  display: none;
  align-items: center;
  gap: 9px;
  padding: 9px 14px;
  border: 2px solid var(--yq-line);
  background: transparent;
  color: var(--yq-paper);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .07em;
  cursor: pointer;
  transition: border-color .22s var(--yq-ease), color .22s var(--yq-ease);
}
.yq-navtoggle:hover { border-color: var(--yq-cyan); color: var(--yq-cyan); }
.yq-navtoggle__bars {
  position: relative;
  display: block;
  width: 16px;
  height: 2px;
  background: currentColor;
}
.yq-navtoggle__bars::before,
.yq-navtoggle__bars::after {
  content: "";
  position: absolute;
  left: 0;
  width: 16px;
  height: 2px;
  background: currentColor;
  transition: transform .24s var(--yq-ease), top .24s var(--yq-ease);
}
.yq-navtoggle__bars::before { top: -5px; }
.yq-navtoggle__bars::after { top: 5px; }
.yq-navtoggle[aria-expanded="true"] .yq-navtoggle__bars { background: transparent; }
.yq-navtoggle[aria-expanded="true"] .yq-navtoggle__bars::before { top: 0; transform: rotate(45deg); }
.yq-navtoggle[aria-expanded="true"] .yq-navtoggle__bars::after { top: 0; transform: rotate(-45deg); }

/* ---------- 12. 比分带 ---------- */
.yq-band {
  border-top: 1px solid rgba(110, 122, 115, .34);
  border-bottom: 1px solid rgba(110, 122, 115, .34);
  background: rgba(12, 33, 26, .78);
}
.yq-band__viewport {
  max-width: var(--yq-shell);
  margin: 0 auto;
  overflow: hidden;
}
.yq-band__track { display: flex; flex: 0 0 auto; }

.yq-band__item {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 9px 22px;
  border-right: 1px solid rgba(110, 122, 115, .28);
  font-size: 13px;
  white-space: nowrap;
}
.yq-band__tag {
  padding: 2px 7px;
  background: rgba(255, 90, 43, .16);
  color: var(--yq-orange);
  font-family: var(--yq-font-mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .08em;
}
.yq-band__tag--soon { background: rgba(242, 194, 48, .16); color: var(--yq-amber); }
.yq-band__tag--done { background: rgba(110, 122, 115, .18); color: var(--yq-paper-mid); }
.yq-band__team { color: var(--yq-paper); }
.yq-band__score {
  font-family: var(--yq-font-mono);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: .04em;
  color: var(--yq-cyan);
}
.yq-band__sep { padding: 0 2px; color: var(--yq-line); }
.yq-band__clock {
  font-family: var(--yq-font-mono);
  font-size: 12px;
  color: var(--yq-paper-mid);
}

@media (min-width: 768px) {
  .yq-band__viewport { overflow-x: auto; scrollbar-width: none; }
  .yq-band__viewport::-webkit-scrollbar { display: none; }
}

@media (max-width: 767px) {
  .yq-band__track { animation: yq-band-scroll 24s linear infinite; }
  .yq-band:hover .yq-band__track { animation-play-state: paused; }
}

@keyframes yq-band-scroll {
  from { transform: translateX(0); }
  to { transform: translateX(-100%); }
}

/* ---------- 13. 页脚 ---------- */
.yq-footer {
  margin-top: clamp(56px, 9vw, 124px);
  background: var(--yq-ink-2);
  border-top: 1px solid var(--yq-turf);
  color: var(--yq-paper);
}
.yq-footer__shell {
  max-width: var(--yq-shell);
  margin: 0 auto;
  padding: clamp(40px, 6vw, 76px) var(--yq-gutter) 26px;
}
.yq-footer__grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.35fr;
  gap: clamp(20px, 3vw, 46px);
}

.yq-footcard {
  padding-top: 18px;
  border-top: 2px solid var(--yq-turf);
}
.yq-footcard__eyebrow {
  margin: 0 0 10px;
  font-family: var(--yq-font-mono);
  font-size: 11px;
  letter-spacing: .24em;
  text-transform: uppercase;
  color: var(--yq-cyan);
}
.yq-footcard__title {
  margin: 0 0 14px;
  font-size: 20px;
  font-weight: 800;
  letter-spacing: -.01em;
  color: var(--yq-white);
}

.yq-footlist { display: grid; gap: 9px; }
.yq-footlist a {
  display: inline-block;
  font-size: 15px;
  color: var(--yq-paper);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .2s var(--yq-ease), border-color .2s var(--yq-ease);
}
.yq-footlist a:hover { color: var(--yq-cyan); border-bottom-color: var(--yq-cyan); }

.yq-footdata { display: grid; gap: 10px; }
.yq-footdata__row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding-bottom: 8px;
  border-bottom: 1px dashed rgba(110, 122, 115, .34);
}
.yq-footdata dt {
  font-size: 14px;
  color: var(--yq-paper-mid);
}
.yq-footdata dd {
  margin: 0;
  font-family: var(--yq-font-mono);
  font-size: 12px;
  letter-spacing: .05em;
  color: var(--yq-cyan-soft);
  text-align: right;
}

.yq-footcontact { display: grid; gap: 12px; }
.yq-footcontact__row { display: grid; gap: 3px; }
.yq-contact__label {
  font-family: var(--yq-font-mono);
  font-size: 11px;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--yq-paper-mid);
}
.yq-contact__value {
  font-size: 15px;
  line-height: 1.65;
  color: var(--yq-white);
  word-break: break-word;
}
.yq-contact__value--mono { font-family: var(--yq-font-mono); letter-spacing: .04em; }

.yq-footnote {
  margin: 14px 0 0;
  font-size: 13px;
  line-height: 1.75;
  color: var(--yq-paper-mid);
}
.yq-footnote--mono {
  font-family: var(--yq-font-mono);
  letter-spacing: .08em;
  color: var(--yq-cyan);
}

.yq-footer__base {
  margin-top: clamp(32px, 5vw, 60px);
  padding-top: 20px;
  border-top: 1px solid rgba(110, 122, 115, .4);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.yq-footer__legal {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: var(--yq-paper-mid);
}
.yq-footer__mono {
  font-family: var(--yq-font-mono);
  letter-spacing: .06em;
}
.yq-footer__sep { color: var(--yq-line); }
.yq-footer__actions { display: flex; flex-wrap: wrap; gap: 10px; }

.yq-totop {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 16px;
  border: 2px solid var(--yq-cyan);
  background: transparent;
  color: var(--yq-cyan);
  font-family: var(--yq-font-body);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .07em;
  cursor: pointer;
  transition: background-color .22s var(--yq-ease), color .22s var(--yq-ease),
              box-shadow .22s var(--yq-ease), transform .18s var(--yq-ease);
}
.yq-totop::after { content: "↑"; font-family: var(--yq-font-mono); }
.yq-totop:hover {
  background: var(--yq-cyan);
  color: var(--yq-ink);
  box-shadow: 4px 4px 0 rgba(43, 227, 192, .26);
  transform: translate(-1px, -1px);
}

/* ---------- 14. 大屏模式 ---------- */
html.yq-bigscreen body { font-size: 19px; letter-spacing: .014em; }
html.yq-bigscreen .yq-section__title { font-size: clamp(32px, 3.9vw, 52px); }
html.yq-bigscreen .yq-card__text,
html.yq-bigscreen .yq-prose { font-size: 18px; }
html.yq-bigscreen .yq-nav__link { font-size: 16px; }
html.yq-bigscreen .yq-band__item { font-size: 14px; padding: 11px 24px; }

/* ---------- 15. 响应式 ---------- */
@media (max-width: 1023px) {
  .yq-nav {
    position: absolute;
    left: calc(var(--yq-gutter) * -1);
    right: calc(var(--yq-gutter) * -1);
    top: 100%;
    display: none;
    padding: 8px var(--yq-gutter) 22px;
    background: var(--yq-ink-2);
    border-top: 1px solid var(--yq-turf);
    border-bottom: 1px solid var(--yq-line);
    box-shadow: 0 30px 54px -26px rgba(0, 0, 0, .95);
    max-height: calc(100vh - 90px);
    overflow-y: auto;
  }
  .yq-nav[data-open] { display: block; }
  .yq-nav__list { flex-direction: column; align-items: stretch; gap: 0; }
  .yq-nav__item + .yq-nav__item { border-top: 1px solid rgba(110, 122, 115, .26); }
  .yq-nav__link {
    display: block;
    padding: 15px 4px;
    font-size: 17px;
    font-weight: 600;
  }
  .yq-nav__link::after {
    left: 4px;
    right: auto;
    bottom: 10px;
    width: 22px;
    height: 2px;
  }
  .yq-navtoggle { display: inline-flex; }
  .yq-tools__link { display: none; }

  .yq-grid--3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .yq-footer__grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 719px) {
  body { font-size: 16px; }
  .yq-header__row { min-height: 64px; gap: 10px; }
  .yq-id__name { display: none; }
  .yq-id__tag { font-size: 10px; letter-spacing: .1em; }
  .yq-live__tag { display: none; }
  .yq-grid--2,
  .yq-grid--3 { grid-template-columns: minmax(0, 1fr); }
  .yq-footer__grid { grid-template-columns: minmax(0, 1fr); gap: 26px; }
  .yq-footer__base { flex-direction: column; align-items: flex-start; }
  .yq-paper { box-shadow: 7px 7px 0 rgba(18, 58, 44, .6); }
}

/* ---------- 16. 降级动效 ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *,
  *::before,
  *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
  }
  .yq-band__track { animation: none !important; }
  .yq-live__dot { animation: none !important; }
}