/* =========================================================
   奇异果体育 · /assets/site.css
   共享层：reset / 变量 / 中文排版 / 框架导航 / 页脚 / 基础组件
   ========================================================= */

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

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

body, h1, h2, h3, h4, h5, h6, p, ul, ol, li, figure, blockquote, dl, dd { margin: 0; }

ul, ol { padding: 0; list-style: none; }

a { color: inherit; text-decoration: none; }

button {
  font: inherit;
  color: inherit;
  background: none;
  border: 0;
  cursor: pointer;
}

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

[hidden] { display: none !important; }

/* ---------- 2. 变量 ---------- */
:root {
  color-scheme: dark;

  --kiwi: #7CFF6B;
  --rind: #0E2B1F;
  --night: #1A1033;
  --indigo: #3A1D6E;
  --cyan: #4DF0D6;
  --wine: #6E1D3A;
  --mist: #F4FFF8;
  --sage: #A8C3B0;
  --ink: #050A08;

  --line: rgba(168, 195, 176, .22);
  --line-strong: rgba(77, 240, 214, .38);

  --font-title: "Archivo Expanded", "Noto Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  --font-data: "JetBrains Mono", "Roboto Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --font-body: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, "Segoe UI", sans-serif;

  --rail-w: 276px;
  --rail-h: 64px;
  --shell: 1240px;

  --radius-l: 32px;
  --radius-m: 20px;
  --radius-s: 14px;
  --pill: 999px;

  --gap: clamp(16px, 2vw, 28px);
  --edge: clamp(20px, 4vw, 56px);
  --ease: cubic-bezier(.22, .61, .36, 1);
  --shadow: 0 30px 70px -40px rgba(5, 10, 8, .95);
}

/* ---------- 3. 文档与夜场灯光底 ---------- */
body {
  min-height: 100vh;
  padding-left: var(--rail-w);
  background: var(--rind);
  color: var(--mist);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.7;
  letter-spacing: .01em;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background:
    radial-gradient(115% 76% at 84% -8%, rgba(124, 255, 107, .14), transparent 58%),
    radial-gradient(88% 70% at 4% 104%, rgba(58, 29, 110, .52), transparent 62%),
    linear-gradient(180deg, rgba(14, 43, 31, 0), rgba(5, 10, 8, .62));
}

main, .site-foot { position: relative; z-index: 1; }

/* ---------- 4. 中文排版基线 ---------- */
h1, h2, h3, h4 {
  font-family: var(--font-title);
  font-weight: 800;
  line-height: 1.16;
  letter-spacing: -.01em;
}

p { line-height: 1.8; }

strong { font-weight: 700; color: var(--mist); }

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

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

/* ---------- 5. 跳跃链接 ---------- */
.skip-link {
  position: fixed;
  top: 10px;
  left: 50%;
  z-index: 200;
  padding: 12px 24px;
  border-radius: var(--pill);
  background: var(--kiwi);
  color: var(--ink);
  font-family: var(--font-data);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .06em;
  transform: translate(-50%, -180%);
  transition: transform .2s var(--ease);
}

.skip-link:focus-visible,
.skip-link:focus {
  transform: translate(-50%, 0);
  outline-offset: 0;
}

/* ---------- 6. 框架导航（桌面端左侧竖栏） ---------- */
.site-rail {
  position: fixed;
  top: 0;
  right: auto;
  bottom: 0;
  left: 0;
  z-index: 60;
  width: var(--rail-w);
  display: flex;
  background:
    linear-gradient(180deg, rgba(14, 43, 31, .98) 0%, rgba(26, 16, 51, .98) 58%, rgba(5, 10, 8, .99) 100%);
  border-right: 1px solid rgba(77, 240, 214, .28);
}

.site-rail::after {
  content: "";
  position: absolute;
  top: 0;
  right: -1px;
  width: 1px;
  height: 100%;
  background: linear-gradient(180deg, transparent, var(--cyan) 16%, var(--kiwi) 56%, transparent);
  opacity: .55;
  pointer-events: none;
}

.rail-inner {
  display: flex;
  flex-direction: column;
  gap: clamp(18px, 3.2vh, 32px);
  width: 100%;
  height: 100%;
  padding: clamp(22px, 3vh, 34px) clamp(18px, 1.8vw, 26px) clamp(20px, 3vh, 28px);
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: rgba(124, 255, 107, .4) transparent;
}

/* 品牌 */
.brand {
  display: flex;
  align-items: center;
  gap: 13px;
  min-width: 0;
}

.brand-mark {
  flex: none;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background:
    radial-gradient(circle at 32% 30%, #DFFFCB 0 11%, transparent 12%),
    radial-gradient(circle at 68% 66%, var(--rind) 0 8%, transparent 9%),
    radial-gradient(circle at 42% 72%, var(--rind) 0 7%, transparent 8%),
    radial-gradient(circle at 64% 34%, var(--rind) 0 6%, transparent 7%),
    radial-gradient(circle at 30% 36%, var(--kiwi) 0 60%, #3FA83A 100%);
  box-shadow:
    0 0 0 1px rgba(124, 255, 107, .45),
    0 0 26px rgba(124, 255, 107, .26);
}

.brand-text {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}

.brand-name {
  font-family: var(--font-title);
  font-weight: 900;
  font-size: 18px;
  letter-spacing: .01em;
  color: var(--mist);
}

.brand-sub {
  font-family: var(--font-data);
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--sage);
  text-transform: uppercase;
}

/* 移动端按钮（桌面端隐藏） */
.nav-toggle {
  display: none;
  align-items: center;
  gap: 10px;
  padding: 10px 15px;
  border: 1px solid rgba(77, 240, 214, .42);
  border-radius: var(--pill);
  color: var(--mist);
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: .12em;
  transition: border-color .18s var(--ease), background-color .18s var(--ease), color .18s var(--ease);
}

.nav-toggle:hover {
  border-color: var(--cyan);
  background: rgba(77, 240, 214, .1);
  color: var(--cyan);
}

.nav-toggle-icon {
  position: relative;
  display: block;
  flex: none;
  width: 18px;
  height: 12px;
}

.nav-toggle-icon::before,
.nav-toggle-icon::after {
  content: "";
  position: absolute;
  left: 0;
  width: 18px;
  height: 2px;
  border-radius: 2px;
  background: currentColor;
  transition: transform .2s var(--ease);
}

.nav-toggle-icon::before { top: 0; }
.nav-toggle-icon::after { bottom: 0; }

.site-rail[data-open] .nav-toggle-icon::before { transform: translateY(5px) rotate(45deg); }
.site-rail[data-open] .nav-toggle-icon::after { transform: translateY(-5px) rotate(-45deg); }

.nav-toggle-label[data-label-close] { display: none; }
.site-rail[data-open] .nav-toggle-label[data-label-open] { display: none; }
.site-rail[data-open] .nav-toggle-label[data-label-close] { display: inline; }

/* 导航 */
.site-nav { display: block; }

.nav-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.nav-item { min-width: 0; }

.nav-link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 14px;
  border: 1px solid transparent;
  border-radius: var(--radius-m);
  color: var(--sage);
  font-weight: 600;
  letter-spacing: .02em;
  transition:
    color .18s var(--ease),
    background-color .18s var(--ease),
    border-color .18s var(--ease),
    box-shadow .18s var(--ease);
}

.nav-link:hover {
  color: var(--mist);
  background: rgba(124, 255, 107, .07);
  border-color: rgba(77, 240, 214, .42);
}

.nav-index {
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: .08em;
  color: rgba(168, 195, 176, .72);
}

.nav-label { font-size: 15.5px; }

.nav-link[aria-current="page"] {
  color: var(--mist);
  background: linear-gradient(90deg, rgba(124, 255, 107, .24), rgba(124, 255, 107, .04));
  border-color: rgba(124, 255, 107, .5);
  box-shadow: inset 3px 0 0 var(--kiwi);
}

.nav-link[aria-current="page"] .nav-label { color: var(--kiwi); }
.nav-link[aria-current="page"] .nav-index { color: var(--cyan); }

/* 栏底状态 */
.rail-foot {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-top: auto;
  padding-top: 18px;
  border-top: 1px dashed var(--line);
}

.rail-status {
  display: flex;
  align-items: center;
  gap: 9px;
  font-family: var(--font-data);
  font-size: 11.5px;
  letter-spacing: .08em;
  color: var(--sage);
}

.rail-dot {
  flex: none;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--kiwi);
  box-shadow: 0 0 0 4px rgba(124, 255, 107, .16);
}

.rail-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 13px 18px;
  border: 1px solid transparent;
  border-radius: var(--pill);
  background: var(--kiwi);
  color: var(--ink);
  font-weight: 800;
  font-size: 15px;
  letter-spacing: .02em;
  transition:
    background-color .18s var(--ease),
    color .18s var(--ease),
    border-color .18s var(--ease);
}

.rail-cta:hover {
  background: transparent;
  color: var(--kiwi);
  border-color: var(--kiwi);
}

/* ---------- 7. 页脚 ---------- */
.site-foot {
  position: relative;
  z-index: 1;
  margin-top: clamp(40px, 6vw, 92px);
  background: linear-gradient(180deg, #06110D 0%, var(--ink) 58%);
  border-top: 1px solid rgba(77, 240, 214, .28);
  color: var(--sage);
}

.site-foot::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--kiwi) 24%, var(--cyan) 56%, transparent);
  opacity: .7;
  pointer-events: none;
}

.foot-shell {
  width: 100%;
  max-width: var(--shell);
  margin-inline: auto;
  padding: clamp(38px, 5vw, 72px) var(--edge) clamp(20px, 2.5vw, 34px);
}

.foot-top {
  display: grid;
  grid-template-columns: minmax(230px, 1fr) 2.5fr;
  gap: clamp(28px, 4vw, 64px);
}

.foot-brand {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.foot-tag {
  font-family: var(--font-data);
  font-size: 12.5px;
  letter-spacing: .1em;
  line-height: 1.9;
  color: var(--sage);
}

.foot-nav {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(20px, 3vw, 48px);
}

.foot-col { min-width: 0; }

.foot-title {
  margin-bottom: 14px;
  font-family: var(--font-data);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .18em;
  color: var(--cyan);
}

.foot-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.foot-link {
  display: inline-block;
  font-size: 14.5px;
  color: var(--sage);
  border-bottom: 1px solid transparent;
  transition: color .18s var(--ease), border-color .18s var(--ease);
}

.foot-link:hover {
  color: var(--mist);
  border-bottom-color: var(--kiwi);
}

.foot-list--plain li {
  font-size: 14px;
  line-height: 1.75;
  color: var(--sage);
  word-break: break-word;
}

.foot-key {
  display: block;
  margin-bottom: 2px;
  font-family: var(--font-data);
  font-size: 11px;
  letter-spacing: .16em;
  color: rgba(168, 195, 176, .68);
}

.foot-legal {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px 26px;
  margin-top: clamp(32px, 4vw, 56px);
  padding-top: 22px;
  border-top: 1px solid rgba(168, 195, 176, .16);
  font-family: var(--font-data);
  font-size: 12.5px;
  letter-spacing: .05em;
  color: rgba(168, 195, 176, .86);
}

.foot-copy { line-height: 1.7; }
.foot-icp { line-height: 1.7; color: var(--sage); }

/* ---------- 8. 布局工具 ---------- */
.shell {
  width: 100%;
  max-width: var(--shell);
  margin-inline: auto;
  padding-inline: var(--edge);
}

.band { padding-block: clamp(48px, 7vw, 104px); }

.band--rind { background: var(--rind); }

.band--night {
  background: linear-gradient(160deg, var(--night) 0%, #100A24 68%, var(--rind) 100%);
}

.band--indigo {
  background: linear-gradient(140deg, var(--indigo) 0%, #200F42 58%, var(--night) 100%);
}

.band--wine {
  background: linear-gradient(150deg, var(--wine) 0%, #3A0F21 62%, var(--night) 100%);
}

.band--ink { background: var(--ink); }

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

.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--8-4 { grid-template-columns: 8fr 4fr; }
.grid--7-5 { grid-template-columns: 7fr 5fr; }
.grid--5-7 { grid-template-columns: 5fr 7fr; }
.grid--3-9 { grid-template-columns: 3fr 9fr; }

.divider {
  height: 1px;
  margin-block: clamp(24px, 3vw, 40px);
  border: 0;
  background: var(--line);
}

/* ---------- 9. 排版工具 ---------- */
.display {
  font-family: var(--font-title);
  font-weight: 900;
  font-size: clamp(44px, 8vw, 112px);
  line-height: .92;
  letter-spacing: -.025em;
}

.title-xl {
  font-family: var(--font-title);
  font-weight: 900;
  font-size: clamp(34px, 5.2vw, 72px);
  line-height: 1;
  letter-spacing: -.02em;
}

.title-lg {
  font-family: var(--font-title);
  font-weight: 800;
  font-size: clamp(26px, 3.4vw, 44px);
  line-height: 1.1;
}

.title-md {
  font-family: var(--font-title);
  font-weight: 800;
  font-size: clamp(19px, 2.2vw, 26px);
  line-height: 1.28;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: .2em;
  color: var(--cyan);
}

.eyebrow::before {
  content: "";
  width: 26px;
  height: 1px;
  background: currentColor;
  opacity: .75;
}

.lede {
  max-width: 62ch;
  font-size: clamp(16px, 1.6vw, 19px);
  line-height: 1.8;
  color: var(--sage);
}

.num,
.u-mono { font-family: var(--font-data); font-variant-numeric: tabular-nums; }

.u-kiwi { color: var(--kiwi); }
.u-cyan { color: var(--cyan); }
.u-sage { color: var(--sage); }
.u-center { text-align: center; }

/* ---------- 10. 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 26px;
  border: 1px solid transparent;
  border-radius: var(--pill);
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 15.5px;
  line-height: 1;
  transition:
    background-color .18s var(--ease),
    color .18s var(--ease),
    border-color .18s var(--ease);
}

.btn--primary {
  background: var(--kiwi);
  color: var(--ink);
}

.btn--primary:hover { background: #A6FF92; }

.btn--ghost {
  border-color: rgba(77, 240, 214, .5);
  color: var(--mist);
}

.btn--ghost:hover {
  border-color: var(--cyan);
  background: rgba(77, 240, 214, .1);
  color: var(--cyan);
}

.btn--quiet {
  background: var(--indigo);
  color: var(--mist);
}

.btn--quiet:hover { background: #4C2688; }

.btn[aria-disabled="true"] {
  opacity: .5;
  pointer-events: none;
}

/* ---------- 11. 面包屑 ---------- */
.crumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-family: var(--font-data);
  font-size: 12.5px;
  letter-spacing: .06em;
  color: var(--sage);
}

.crumbs a {
  color: var(--sage);
  border-bottom: 1px solid transparent;
  transition: color .18s var(--ease), border-color .18s var(--ease);
}

.crumbs a:hover {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

.crumbs li + li::before {
  content: "/";
  margin-right: 8px;
  color: rgba(168, 195, 176, .5);
}

/* ---------- 12. 标签 ---------- */
.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 12px;
  border: 1px solid transparent;
  border-radius: var(--pill);
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: .06em;
}

.tag--kiwi {
  background: rgba(124, 255, 107, .14);
  border-color: rgba(124, 255, 107, .42);
  color: var(--kiwi);
}

.tag--cyan {
  background: rgba(77, 240, 214, .12);
  border-color: rgba(77, 240, 214, .42);
  color: var(--cyan);
}

.tag--wine {
  background: rgba(110, 29, 58, .5);
  border-color: rgba(255, 195, 214, .3);
  color: #FFC3D6;
}

.tag--ghost {
  background: rgba(244, 255, 248, .06);
  border-color: var(--line);
  color: var(--sage);
}

/* ---------- 13. 面板与数据 ---------- */
.panel {
  padding: clamp(20px, 2.6vw, 34px);
  border: 1px solid var(--line);
  border-radius: var(--radius-l);
  background: linear-gradient(160deg, rgba(244, 255, 248, .07), rgba(244, 255, 248, .02));
  box-shadow: var(--shadow);
  transition: border-color .2s var(--ease), background-color .2s var(--ease);
}

.panel:hover { border-color: rgba(77, 240, 214, .55); }

.panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  margin-bottom: 16px;
}

.panel-title {
  font-family: var(--font-title);
  font-weight: 800;
  font-size: 18px;
  letter-spacing: .01em;
}

.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: var(--gap);
}

.stat {
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-width: 0;
}

.stat-num {
  font-family: var(--font-data);
  font-variant-numeric: tabular-nums;
  font-weight: 600;
  font-size: clamp(30px, 3.6vw, 52px);
  line-height: 1;
  color: var(--kiwi);
}

.stat-label {
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--sage);
}

.table-scroll {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
}

.data-table {
  width: 100%;
  min-width: 560px;
  border-collapse: collapse;
  font-size: 14.5px;
}

.data-table th,
.data-table td {
  padding: 12px 16px;
  text-align: left;
  border-bottom: 1px solid rgba(168, 195, 176, .14);
}

.data-table th {
  font-family: var(--font-data);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .12em;
  color: var(--sage);
  background: rgba(5, 10, 8, .38);
}

.data-table tbody tr:hover { background: rgba(77, 240, 214, .06); }
.data-table td.num,
.data-table .num { font-family: var(--font-data); font-variant-numeric: tabular-nums; }

/* ---------- 14. 标签页（伤停对照时间轴） ---------- */
.tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tab {
  padding: 10px 18px;
  border: 1px solid var(--line);
  border-radius: var(--pill);
  color: var(--sage);
  font-family: var(--font-data);
  font-size: 13px;
  letter-spacing: .08em;
  transition:
    color .18s var(--ease),
    border-color .18s var(--ease),
    background-color .18s var(--ease);
}

.tab:hover {
  border-color: rgba(77, 240, 214, .5);
  color: var(--mist);
}

.tab[aria-selected="true"] {
  background: rgba(124, 255, 107, .14);
  border-color: var(--kiwi);
  color: var(--kiwi);
}

.tab-panel { padding-top: 20px; }

/* ---------- 15. 响应式图片容器 ---------- */
.media {
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  border: 1px solid rgba(77, 240, 214, .22);
  border-radius: var(--radius-l);
  background:
    linear-gradient(135deg, rgba(58, 29, 110, .9), rgba(14, 43, 31, .95)),
    var(--night);
}

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

.media::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(180deg, rgba(5, 10, 8, 0) 42%, rgba(5, 10, 8, .74));
}

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

.media-cap {
  position: absolute;
  left: 18px;
  right: 18px;
  bottom: 16px;
  z-index: 1;
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--mist);
}

/* ---------- 16. 断点：平板收窄框架 ---------- */
@media (min-width: 900px) and (max-width: 1199px) {
  :root { --rail-w: 214px; }

  .brand-sub { display: none; }
  .nav-label { font-size: 15px; }
  .nav-link { padding: 11px 12px; }
}

@media (max-width: 1023px) {
  .grid--4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .grid--3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }

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

/* ---------- 17. 断点：移动端框架折叠为顶栏 ---------- */
@media (max-width: 899px) {
  body {
    padding-left: 0;
    padding-top: var(--rail-h);
  }

  .site-rail {
    right: 0;
    bottom: auto;
    width: auto;
    height: var(--rail-h);
    border-right: 0;
    border-bottom: 1px solid rgba(77, 240, 214, .3);
  }

  .site-rail::after {
    top: auto;
    right: auto;
    bottom: -1px;
    left: 0;
    width: 100%;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--cyan) 20%, var(--kiwi) 58%, transparent);
  }

  .rail-inner {
    flex-direction: row;
    align-items: center;
    gap: 12px;
    height: var(--rail-h);
    padding: 0 16px;
    overflow: visible;
  }

  .brand-mark { width: 36px; height: 36px; }
  .brand-sub { display: none; }
  .brand-name { font-size: 16px; }

  .nav-toggle {
    display: inline-flex;
    margin-left: auto;
  }

  .site-nav {
    position: fixed;
    top: var(--rail-h);
    right: 0;
    bottom: 0;
    left: 0;
    z-index: 55;
    display: none;
    padding: 22px 18px 48px;
    overflow-y: auto;
    background: linear-gradient(180deg, rgba(14, 43, 31, .99) 0%, rgba(5, 10, 8, .99) 100%);
    border-top: 1px solid rgba(77, 240, 214, .25);
  }

  .site-rail[data-open] .site-nav { display: block; }

  .nav-list { gap: 8px; }

  .nav-link {
    padding: 16px;
    border-color: rgba(168, 195, 176, .18);
    border-radius: var(--radius-m);
    font-size: 17px;
  }

  .nav-label { font-size: 17px; }

  .rail-foot { display: none; }
}

/* ---------- 18. 断点：小屏收束 ---------- */
@media (max-width: 767px) {
  .grid--2,
  .grid--3,
  .grid--4,
  .grid--8-4,
  .grid--7-5,
  .grid--5-7,
  .grid--3-9 { grid-template-columns: minmax(0, 1fr); }

  .foot-nav { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 26px; }

  .foot-legal {
    flex-direction: column;
    align-items: flex-start;
  }

  .media { border-radius: var(--radius-m); }
}

@media (max-width: 420px) {
  .panel { padding: 18px; }
  .tab { padding: 9px 14px; }
}

/* ---------- 19. 动效降级 ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }

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