/* ==========================================================================
   365体育手机版 · /assets/site.css
   夜间灯光球场体系：深空黑底、碳灰堆叠面板、荧光绿单点锚色
   ========================================================================== */

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body,
h1, h2, h3, h4, p, figure, blockquote, ul, ol, dl, dd {
  margin: 0;
}

ul, ol { padding: 0; }

img, svg, video { display: block; max-width: 100%; }

button, input, select, textarea { font: inherit; color: inherit; }

a { color: inherit; }

/* ---------- 变量 ---------- */
:root {
  --c-void: #0A0D12;
  --c-panel: #141922;
  --c-line: #2A313D;
  --c-white: #FFFFFF;
  --c-mist: #A8B2C1;
  --c-neon: #C6FF3D;
  --c-neon-deep: #8FCC14;
  --c-blue: #2F6BFF;
  --c-blue-soft: #7FA6FF;
  --c-warn: #FF7A45;
  --c-paper: #F4F6F9;

  --font-sans: "Noto Sans SC", "Source Han Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
  --font-mono: "JetBrains Mono", "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;

  --r-sm: 10px;
  --r-md: 16px;
  --r-lg: 24px;
  --r-xl: 34px;
  --r-pill: 999px;

  --sp-1: 8px;
  --sp-2: 16px;
  --sp-3: 24px;
  --sp-4: 48px;
  --sp-5: 72px;
  --sp-6: 104px;

  --shell: 1200px;
  --header-h: 72px;
  --skew: -5deg;
  --ease: cubic-bezier(.22, .61, .36, 1);
}

/* ---------- 中文排版与底色 ---------- */
body {
  background-color: var(--c-void);
  background-image:
    radial-gradient(120% 90% at 8% -12%, rgba(198, 255, 61, .10), transparent 55%),
    radial-gradient(95% 75% at 102% 0%, rgba(47, 107, 255, .16), transparent 62%),
    repeating-linear-gradient(115deg, rgba(42, 49, 61, .34) 0 1px, transparent 1px 124px);
  background-attachment: fixed;
  background-repeat: no-repeat;
  color: var(--c-white);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.75;
  font-weight: 400;
  letter-spacing: .005em;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2, h3, h4 {
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -.02em;
}

h1 { font-size: clamp(34px, 7vw, 44px); }
h2 { font-size: clamp(24px, 4.2vw, 32px); }
h3 { font-size: clamp(19px, 2.6vw, 24px); }

p { max-width: 40ch; }

::selection {
  background: var(--c-neon);
  color: #08110A;
}

#main-content { scroll-margin-top: calc(var(--header-h) + 16px); }

/* ---------- 焦点 ---------- */
:focus-visible {
  outline: 2px solid var(--c-neon);
  outline-offset: 3px;
  border-radius: 6px;
}

/* ---------- skip link ---------- */
.skip-link {
  position: fixed;
  top: 10px;
  left: 12px;
  z-index: 200;
  padding: 10px 18px;
  border-radius: var(--r-pill);
  background: var(--c-neon);
  color: #08110A;
  font-weight: 700;
  font-size: 14px;
  text-decoration: none;
  transform: translateY(-180%);
  transition: transform .22s var(--ease);
}

.skip-link:focus,
.skip-link:focus-visible {
  transform: translateY(0);
}

/* ---------- 页头 ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 60;
  background: rgba(10, 13, 18, .88);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--c-line);
  transition: box-shadow .3s var(--ease), background-color .3s var(--ease);
}

.site-header[data-condensed] {
  background: rgba(10, 13, 18, .96);
  box-shadow: 0 18px 40px rgba(0, 0, 0, .48);
}

.site-header::before {
  content: "";
  position: absolute;
  left: 0;
  bottom: -1px;
  width: 34%;
  height: 1px;
  background: linear-gradient(90deg, var(--c-neon), rgba(198, 255, 61, 0));
  pointer-events: none;
}

.site-header__inner {
  width: min(100% - 40px, var(--shell));
  margin-inline: auto;
  min-height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-3);
}

/* ---------- 品牌 ---------- */
.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--c-white);
  flex: 0 0 auto;
}

.brand__mark {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border-radius: 14px;
  background: var(--c-neon);
  color: #08110A;
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: -.04em;
  transform: skewX(var(--skew));
  box-shadow: 0 10px 26px rgba(198, 255, 61, .22);
}

.brand__text {
  display: flex;
  flex-direction: column;
  line-height: 1.18;
}

.brand__name {
  font-size: 17px;
  font-weight: 900;
  letter-spacing: -.01em;
}

.brand__tag {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .22em;
  color: var(--c-mist);
}

.brand--footer .brand__mark {
  width: 48px;
  height: 48px;
}

.brand--footer .brand__name { font-size: 18px; }

/* ---------- 主导航 ---------- */
.site-nav {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  margin-left: auto;
}

.site-nav__list {
  display: flex;
  align-items: center;
  gap: 2px;
  list-style: none;
  counter-reset: navi;
}

.site-nav__item { counter-increment: navi; }

.site-nav__link {
  position: relative;
  display: block;
  padding: 10px 12px 13px;
  border-radius: 12px;
  color: var(--c-mist);
  font-size: 15px;
  font-weight: 500;
  text-decoration: none;
  white-space: nowrap;
  transition: color .2s var(--ease);
}

.site-nav__link::before {
  content: counter(navi, decimal-leading-zero);
  display: block;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .16em;
  color: #3A4350;
  transition: color .2s var(--ease);
}

.site-nav__link::after {
  content: "";
  position: absolute;
  left: 12px;
  right: 12px;
  bottom: 5px;
  height: 2px;
  border-radius: 2px;
  background: var(--c-neon);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform .3s var(--ease);
}

.site-nav__link:hover { color: var(--c-white); }
.site-nav__link:hover::before { color: var(--c-blue-soft); }
.site-nav__link:hover::after { transform: scaleX(.42); }

.site-nav__link[aria-current="page"] {
  color: var(--c-white);
  font-weight: 700;
}

.site-nav__link[aria-current="page"]::before { color: var(--c-neon); }
.site-nav__link[aria-current="page"]::after { transform: scaleX(1); }

.site-nav__cta { margin-left: var(--sp-1); }

/* ---------- 移动栏目按钮 ---------- */
.nav-toggle {
  display: none;
  align-items: center;
  gap: 10px;
  padding: 10px 16px;
  border: 1px solid var(--c-line);
  border-radius: var(--r-pill);
  background: transparent;
  color: var(--c-white);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  cursor: pointer;
  transition: border-color .22s var(--ease), color .22s var(--ease);
}

.nav-toggle:hover { border-color: var(--c-blue-soft); }

.nav-toggle__bars {
  display: inline-flex;
  flex-direction: column;
  gap: 4px;
  width: 16px;
}

.nav-toggle__bars span {
  display: block;
  height: 2px;
  border-radius: 2px;
  background: currentColor;
  transition: transform .26s var(--ease), opacity .2s var(--ease);
}

.site-header[data-open] .nav-toggle {
  border-color: var(--c-neon);
  color: var(--c-neon);
}

.site-header[data-open] .nav-toggle__bars span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.site-header[data-open] .nav-toggle__bars span:nth-child(2) { opacity: 0; }
.site-header[data-open] .nav-toggle__bars span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

/* ---------- 滚动进度 ---------- */
.scroll-progress {
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 2px;
  background: linear-gradient(90deg, var(--c-neon), var(--c-blue));
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform .12s linear;
  pointer-events: none;
}

/* ---------- 手机底部快捷栏 ---------- */
.quickbar { display: none; }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 12px 22px;
  border: 1px solid transparent;
  border-radius: var(--r-pill);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: .01em;
  text-decoration: none;
  cursor: pointer;
  transition: background-color .22s var(--ease), color .22s var(--ease), border-color .22s var(--ease), transform .16s var(--ease), box-shadow .22s var(--ease);
}

.btn:active { transform: translateY(1px); }

.btn--neon {
  background: var(--c-neon);
  color: #08110A;
  box-shadow: 0 12px 28px rgba(198, 255, 61, .2);
}

.btn--neon:hover {
  background: var(--c-neon-deep);
  box-shadow: 0 14px 32px rgba(198, 255, 61, .32);
}

.btn--ghost {
  background: transparent;
  border-color: var(--c-line);
  color: var(--c-white);
}

.btn--ghost:hover {
  border-color: var(--c-blue);
  color: var(--c-blue-soft);
}

.btn--blue {
  background: var(--c-blue);
  color: #FFFFFF;
}

.btn--blue:hover { background: #2457D6; }

.btn--block { width: 100%; }

/* ---------- 布局容器 ---------- */
.shell {
  width: min(100% - 40px, var(--shell));
  margin-inline: auto;
}

.stack { display: grid; gap: var(--sp-3); }
.stack--lg { gap: var(--sp-4); }

.grid { display: grid; gap: var(--sp-3); }
.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)); }

.slope {
  height: 1px;
  margin: var(--sp-4) 0;
  border: 0;
  background: linear-gradient(90deg, var(--c-line), rgba(42, 49, 61, .1));
  transform: skewY(-1.2deg);
}

/* ---------- 文本工具 ---------- */
.display {
  font-size: clamp(34px, 7.2vw, 44px);
  font-weight: 900;
  letter-spacing: -.02em;
  line-height: 1.06;
  transform: skewX(var(--skew));
  transform-origin: left center;
}

.display--xl { font-size: clamp(40px, 9vw, 68px); }

.eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--c-mist);
  text-transform: uppercase;
}

.eyebrow--neon { color: var(--c-neon); }

.mono { font-family: var(--font-mono); letter-spacing: .06em; }
.text-neon { color: var(--c-neon); }

.lede {
  font-size: clamp(17px, 2.2vw, 20px);
  line-height: 1.7;
  color: var(--c-mist);
  max-width: 38ch;
}

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

/* ---------- 章节抬头 ---------- */
.section-head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: var(--sp-2);
  margin-bottom: var(--sp-3);
}

.section-head__no {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .16em;
  color: var(--c-neon);
}

.section-head__title {
  font-size: clamp(24px, 4.2vw, 32px);
  font-weight: 900;
  transform: skewX(var(--skew));
  transform-origin: left center;
}

/* ---------- 堆叠画板 ---------- */
.panel {
  position: relative;
  padding: var(--sp-3);
  border: 1px solid var(--c-line);
  border-radius: var(--r-lg);
  background: var(--c-panel);
}

.panel--flush { padding: 0; overflow: hidden; }

.panel__head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--sp-2);
  margin-bottom: var(--sp-3);
}

.panel__index {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .16em;
  color: var(--c-neon);
}

.panel__title {
  font-size: clamp(20px, 3vw, 26px);
  font-weight: 900;
  margin-top: 6px;
}

.panel__status {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 5px 14px;
  border: 1px solid var(--c-line);
  border-radius: var(--r-pill);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--c-mist);
  white-space: nowrap;
}

.panel__status--live {
  border-color: rgba(198, 255, 61, .5);
  color: var(--c-neon);
}

.panel__status--warn {
  border-color: rgba(255, 122, 69, .5);
  color: var(--c-warn);
}

/* ---------- 卡片 ---------- */
.card {
  position: relative;
  padding: var(--sp-3);
  border: 1px solid var(--c-line);
  border-radius: var(--r-lg);
  background: var(--c-panel);
  transition: border-color .26s var(--ease), transform .26s var(--ease);
}

.card:hover {
  border-color: rgba(198, 255, 61, .45);
  transform: translateY(-3px);
}

.card__title {
  font-size: 19px;
  font-weight: 700;
  letter-spacing: -.01em;
  margin-bottom: 8px;
}

.card__meta {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--c-mist);
}

.card__body {
  margin-top: 10px;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--c-mist);
}

/* ---------- 关键数字 ---------- */
.stat { display: grid; gap: 8px; }

.stat__value {
  font-family: var(--font-mono);
  font-size: clamp(32px, 6vw, 56px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -.03em;
  color: var(--c-neon);
}

.stat__label {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--c-mist);
}

/* ---------- 胶囊标签 ---------- */
.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.chip {
  padding: 8px 16px;
  border: 1px solid var(--c-line);
  border-radius: var(--r-pill);
  background: transparent;
  color: var(--c-mist);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .1em;
  cursor: pointer;
  transition: background-color .22s var(--ease), color .22s var(--ease), border-color .22s var(--ease);
}

.chip:hover { border-color: var(--c-blue-soft); color: var(--c-white); }

.chip[aria-selected="true"],
.chip[data-active] {
  background: var(--c-neon);
  border-color: var(--c-neon);
  color: #08110A;
  font-weight: 700;
}

/* ---------- 可展开内容组 ---------- */
.acc {
  border: 1px solid var(--c-line);
  border-radius: var(--r-md);
  background: var(--c-panel);
  overflow: hidden;
}

.acc__item + .acc__item { border-top: 1px solid var(--c-line); }

.acc__trigger {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-2);
  width: 100%;
  padding: 18px 20px;
  border: 0;
  background: transparent;
  color: var(--c-white);
  font-family: var(--font-sans);
  font-size: 16px;
  font-weight: 500;
  text-align: left;
  cursor: pointer;
  transition: color .2s var(--ease), background-color .2s var(--ease);
}

.acc__trigger::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--c-neon);
  transform: scaleY(0);
  transform-origin: top center;
  transition: transform .3s var(--ease);
}

.acc__trigger:hover { background: rgba(47, 107, 255, .08); }

.acc__item[data-open] .acc__trigger { color: var(--c-neon); }
.acc__item[data-open] .acc__trigger::before { transform: scaleY(1); }

.acc__index {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--c-mist);
  flex: 0 0 auto;
}

.acc__panel {
  padding: 0 20px 20px;
  color: var(--c-mist);
  font-size: 15px;
  line-height: 1.75;
}

.acc__panel[hidden] { display: none; }

/* ---------- 面包屑 ---------- */
.breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding: 20px 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--c-mist);
  list-style: none;
}

.breadcrumbs a {
  color: var(--c-mist);
  text-decoration: none;
  transition: color .2s var(--ease);
}

.breadcrumbs a:hover { color: var(--c-neon); }

.breadcrumbs__sep { color: var(--c-line); }

.breadcrumbs [aria-current="page"] { color: var(--c-white); }

/* ---------- 图片容器 ---------- */
.media {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--c-line);
  border-radius: var(--r-lg);
  aspect-ratio: 16 / 9;
  background-color: var(--c-panel);
  background-image:
    radial-gradient(90% 120% at 12% 0%, rgba(198, 255, 61, .14), transparent 58%),
    radial-gradient(80% 110% at 100% 100%, rgba(47, 107, 255, .24), transparent 62%),
    repeating-linear-gradient(120deg, rgba(42, 49, 61, .5) 0 1px, transparent 1px 42px);
}

.media__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.media__caption {
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--c-mist);
}

.media--wide { aspect-ratio: 21 / 9; }
.media--tall { aspect-ratio: 3 / 4; }
.media--square { aspect-ratio: 1 / 1; }

/* ---------- 密集索引列表 ---------- */
.index-list {
  list-style: none;
  display: grid;
}

.index-list__row {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: var(--sp-2);
  padding: 14px 4px;
  border-bottom: 1px solid var(--c-line);
  text-decoration: none;
  color: inherit;
  transition: background-color .2s var(--ease), padding-left .24s var(--ease);
}

.index-list__row:hover {
  background: rgba(198, 255, 61, .07);
  padding-left: 14px;
}

.index-list__no {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--c-neon);
}

.index-list__title { font-weight: 500; }

.index-list__meta {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--c-mist);
  white-space: nowrap;
}

/* ---------- 显现动效 ---------- */
[data-reveal] {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity .6s var(--ease), transform .6s var(--ease);
}

[data-reveal="in"] {
  opacity: 1;
  transform: none;
}

/* ---------- 页脚 ---------- */
.site-footer {
  position: relative;
  margin-top: 88px;
  border-top: 1px solid var(--c-line);
  background: var(--c-panel);
}

.site-footer::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, var(--c-neon), rgba(198, 255, 61, 0) 42%, var(--c-blue));
}

.footer__stack {
  width: min(100% - 40px, var(--shell));
  margin-inline: auto;
  padding: 56px 0 36px;
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.4fr;
  gap: var(--sp-4);
}

.footer__col { min-width: 0; }

.footer__brand {
  display: grid;
  gap: 18px;
  align-content: start;
}

.footer__title {
  margin-bottom: 16px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: .18em;
  color: var(--c-mist);
  text-transform: uppercase;
}

.footer__list {
  list-style: none;
  display: grid;
  gap: 10px;
}

.footer__link {
  position: relative;
  display: inline-block;
  font-size: 14.5px;
  color: var(--c-white);
  text-decoration: none;
  transition: color .22s var(--ease), padding-left .22s var(--ease);
}

.footer__link::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  width: 0;
  height: 2px;
  background: var(--c-neon);
  transition: width .22s var(--ease);
}

.footer__link:hover {
  padding-left: 14px;
  color: var(--c-neon);
}

.footer__link:hover::before { width: 9px; }

.footer__contact {
  list-style: none;
  display: grid;
  gap: 12px;
}

.footer__contact-item {
  display: grid;
  grid-template-columns: 48px minmax(0, 1fr);
  gap: 10px;
  align-items: baseline;
}

.footer__contact-key {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--c-neon);
}

.footer__contact-val {
  font-size: 14px;
  color: var(--c-white);
  word-break: break-word;
}

.footer__note {
  margin-top: 16px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--c-mist);
  max-width: 34ch;
}

.footer__legal {
  width: min(100% - 40px, var(--shell));
  margin-inline: auto;
  padding: 18px 0 26px;
  border-top: 1px solid var(--c-line);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--c-mist);
}

.footer__icp { color: var(--c-mist); }
.footer__copy { color: var(--c-mist); }

/* ---------- 法律页浅底分区 ---------- */
body.is-paper {
  background-color: var(--c-paper);
  background-image: none;
  color: #12161F;
}

body.is-paper .site-header {
  background: rgba(244, 246, 249, .94);
  border-bottom-color: #D8DEE8;
}

body.is-paper .site-header[data-condensed {
  background: rgba(244, 246, 249, .99);
}

body.is-paper .brand,
body.is-paper .brand__name { color: #12161F; }
body.is-paper .brand__tag { color: #57617A; }

body.is-paper .site-nav__link { color: #57617A; }
body.is-paper .site-nav__link::before { color: #AEB7C6; }
body.is-paper .site-nav__link:hover { color: #12161F; }
body.is-paper .site-nav__link[aria-current="page"] { color: #12161F; }

body.is-paper .nav-toggle {
  border-color: #CCD4E2;
  color: #12161F;
}

body.is-paper .btn--ghost {
  border-color: #CCD4E2;
  color: #12161F;
}

body.is-paper .panel,
body.is-paper .card,
body.is-paper .acc {
  background: #FFFFFF;
  border-color: #DDE3EC;
}

body.is-paper .lede,
body.is-paper .card__body,
body.is-paper .acc__panel,
body.is-paper .panel__status,
body.is-paper .index-list__meta { color: #57617A; }

body.is-paper .site-footer {
  background: #E8ECF3;
  border-top-color: #D8DEE8;
}

body.is-paper .footer__link,
body.is-paper .footer__contact-val { color: #12161F; }
body.is-paper .footer__title,
body.is-paper .footer__note,
body.is-paper .footer__legal { color: #57617A; }
body.is-paper .footer__legal { border-top-color: #D2D9E5; }

/* ---------- 响应式：平板 ---------- */
@media (max-width: 960px) {
  :root { --header-h: 60px; }

  .brand__mark { width: 38px; height: 38px; border-radius: 12px; font-size: 13px; }
  .brand__name { font-size: 16px; }
  .brand__tag { font-size: 10px; letter-spacing: .18em; }

  .nav-toggle { display: inline-flex; }

  .site-nav {
    position: fixed;
    top: var(--header-h);
    left: 0;
    right: 0;
    z-index: 55;
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 6px;
    max-height: calc(100dvh - var(--header-h));
    overflow-y: auto;
    padding: 16px 20px 30px;
    background: var(--c-void);
    border-bottom: 1px solid var(--c-line);
    box-shadow: 0 26px 50px rgba(0, 0, 0, .55);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transform: translateY(-14px);
    transition: opacity .24s var(--ease), transform .3s var(--ease), visibility .24s var(--ease);
  }

  .site-nav[data-open],
  .site-header[data-open] .site-nav {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: translateY(0);
  }

  .site-nav__list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    width: 100%;
  }

  .site-nav__link {
    display: grid;
    grid-template-columns: 32px minmax(0, 1fr);
    align-items: center;
    gap: 12px;
    padding: 15px 12px;
    border-bottom: 1px solid rgba(42, 49, 61, .7);
    border-radius: 0;
    font-size: 17px;
  }

  .site-nav__link::before { font-size: 12px; }
  .site-nav__link::after { display: none; }

  .site-nav__link[aria-current="page"] {
    border-radius: 0 14px 14px 0;
    box-shadow: inset 3px 0 0 var(--c-neon);
    background: rgba(198, 255, 61, .06);
  }

  .site-nav__cta {
    margin: var(--sp-2) 0 0;
    width: 100%;
    padding: 14px 22px;
  }

  .grid--3,
  .grid--4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }

  .footer__stack {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--sp-3);
    padding: 44px 0 28px;
  }
}

/* ---------- 响应式：手机 ---------- */
@media (max-width: 720px) {
  body { padding-bottom: 66px; }

  .quickbar {
    display: block;
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 70;
    background: rgba(20, 25, 34, .97);
    -webkit-backdrop-filter: blur(12px);
    backdrop-filter: blur(12px);
    border-top: 1px solid var(--c-line);
    padding-bottom: env(safe-area-inset-bottom, 0);
  }

  .quickbar__list {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    list-style: none;
  }

  .quickbar__item { min-width: 0; }

  .quickbar__link {
    position: relative;
    display: block;
    padding: 13px 4px 14px;
    text-align: center;
    font-family: var(--font-mono);
    font-size: 12px;
    letter-spacing: .04em;
    color: var(--c-mist);
    text-decoration: none;
    transition: color .2s var(--ease);
  }

  .quickbar__link::before {
    content: "";
    position: absolute;
    top: 0;
    left: 24%;
    right: 24%;
    height: 2px;
    border-radius: 2px;
    background: var(--c-neon);
    transform: scaleX(0);
    transition: transform .26s var(--ease);
  }

  .quickbar__link[aria-current="page"] { color: var(--c-neon); }
  .quickbar__link[aria-current="page"]::before { transform: scaleX(1); }

  .grid--2,
  .grid--3,
  .grid--4 { grid-template-columns: minmax(0, 1fr); }

  .footer__stack { grid-template-columns: minmax(0, 1fr); }

  .footer__legal {
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
  }

  .panel { padding: 20px; }
  .card { padding: 20px; }
  p { max-width: none; }
}

/* ---------- 降低动效 ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }

  *,
  *::before,
  *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
  }

  [data-reveal] {
    opacity: 1 !important;
    transform: none !important;
  }

  .scroll-progress { transition: none; }
  .display,
  .section-head__title { transform: none !important; }
}