/* ============================================================
   新利体育 CN 官方平台 V4 — 共享样式 /assets/site.css
   深墨蓝底 + 电光青 / 荧光橙 双强调的记录台色系
   ============================================================ */

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

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

body { margin: 0; }

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

ul, ol { list-style: none; }

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

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

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

table { border-collapse: collapse; width: 100%; }

/* ---------- 2. Tokens ---------- */
:root {
  --ink-900: #0B1626;
  --ink-800: #12233A;
  --ink-700: #16283F;
  --line: #1E3A52;
  --cyan: #2FF3E0;
  --orange: #FF6A1A;
  --slate: #7C93AE;
  --warm: #F2EDE3;
  --cream: #E8DFCE;
  --rock: #8A94A3;
  --moss: #6E8A62;
  --clay: #B4643C;

  --text-body: #CFC9BE;

  --shell: 1240px;
  --gutter: clamp(18px, 4vw, 40px);
  --radius: 14px;
  --radius-sm: 10px;
  --shadow-panel: 0 1px 0 rgba(255, 255, 255, .03), 0 26px 52px -44px #000;
  --ease: cubic-bezier(.22, .61, .36, 1);

  --font-sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC",
    system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --font-mono: ui-monospace, "SFMono-Regular", "JetBrains Mono", Menlo, Consolas,
    "Liberation Mono", monospace;
}

/* ---------- 3. 基础排版（中文） ---------- */
body {
  background-color: var(--ink-900);
  color: var(--text-body);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.75;
  letter-spacing: .01em;
  text-align: left;
  overflow-wrap: break-word;
  word-break: normal;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4 {
  color: var(--warm);
  font-weight: 800;
  line-height: 1.16;
  letter-spacing: -.02em;
  font-stretch: condensed;
}

h1 { font-size: clamp(2rem, 5vw, 3.4rem); }
h2 { font-size: clamp(1.5rem, 3.2vw, 2.25rem); }
h3 { font-size: clamp(1.12rem, 2vw, 1.4rem); }
h4 { font-size: 1rem; letter-spacing: 0; }

p { max-width: 46em; }

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

::selection { background: var(--cyan); color: #04201f; }

.mono,
.num,
time,
code,
kbd {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  letter-spacing: .02em;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

/* ---------- 4. 布局工具 ---------- */
.shell {
  width: 100%;
  max-width: var(--shell);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.section { padding-block: clamp(44px, 6.5vw, 92px); }

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

.list-inline { display: flex; flex-wrap: wrap; gap: 10px 22px; align-items: center; }

.grid { display: grid; gap: clamp(16px, 2.2vw, 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)); }

.divider {
  height: 1px;
  border: 0;
  background: var(--line);
  margin-block: clamp(22px, 3.5vw, 44px);
}

/* ---------- 5. 章节头 / 索引 ---------- */
.section-head {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: clamp(20px, 3vw, 34px);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--slate);
}

.eyebrow::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 2px;
  background: var(--dot, var(--slate));
}

.index-num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--rock);
}

.lede {
  max-width: 46em;
  font-size: clamp(1rem, 1.5vw, 1.12rem);
  line-height: 1.85;
  color: var(--slate);
}

/* ---------- 6. 堆叠面板 ---------- */
.panel {
  position: relative;
  background: var(--ink-800);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: clamp(20px, 3vw, 36px);
  box-shadow: var(--shadow-panel);
}

.panel--cream {
  background: var(--cream);
  border-color: #D3C7B0;
  color: var(--ink-900);
}

.panel--cream h1,
.panel--cream h2,
.panel--cream h3,
.panel--cream strong { color: var(--ink-900); }

.panel--cream .panel-head { border-bottom-color: rgba(11, 22, 38, .16); }
.panel--cream .eyebrow,
.panel--cream .index-num,
.panel--cream .card-meta { color: #4A5A6E; }
.panel--cream .btn { border-color: rgba(11, 22, 38, .3); }

.panel-stack {
  display: grid;
  gap: clamp(18px, 2.6vw, 28px);
}

.panel-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px 18px;
  padding-bottom: 16px;
  margin-bottom: 20px;
  border-bottom: 1px solid var(--line);
}

.panel-title { font-size: clamp(1.15rem, 2vw, 1.5rem); }

.panel-note {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--rock);
  margin-left: auto;
}

/* 色码导轨：排名青 / 前瞻橙 / 文档灰蓝 / 服务米白 */
.code-rail { position: relative; padding-left: 18px; }
.code-rail::before {
  content: "";
  position: absolute;
  left: 0;
  top: 6px;
  bottom: 6px;
  width: 2px;
  border-radius: 2px;
  background: var(--rock);
}
.code-rail--rank::before { background: var(--cyan); }
.code-rail--preview::before { background: var(--orange); }
.code-rail--doc::before { background: var(--slate); }
.code-rail--service::before { background: var(--cream); }

/* ---------- 7. 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 12px 22px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--ink-800);
  color: var(--warm);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .08em;
  line-height: 1.2;
  cursor: pointer;
  transition: transform .18s var(--ease), background-color .18s var(--ease),
    border-color .18s var(--ease), color .18s var(--ease);
}

.btn:hover {
  transform: translateY(-2px);
  border-color: var(--cyan);
  color: var(--cyan);
}

.btn--primary {
  background: var(--orange);
  border-color: var(--orange);
  color: #1B0A00;
}
.btn--primary:hover { background: #FF8244; border-color: #FF8244; color: #1B0A00; }

.btn--cyan { background: var(--cyan); border-color: var(--cyan); color: #04201F; }
.btn--cyan:hover { background: #6BFAEC; border-color: #6BFAEC; color: #04201F; }

.btn--ghost { background: transparent; border-color: var(--line); color: var(--warm); }
.btn--ghost:hover { border-color: var(--cyan); color: var(--cyan); }

.btn--cream { background: var(--cream); border-color: var(--cream); color: var(--ink-900); }
.btn--cream:hover { background: #F7F0E1; border-color: #F7F0E1; color: var(--ink-900); }

/* ---------- 8. 标签与筛选 chips ---------- */
.tag {
  display: inline-block;
  padding: 3px 10px;
  border: 1px solid currentColor;
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  line-height: 1.5;
  white-space: nowrap;
}
.tag--rank { color: var(--cyan); }
.tag--preview { color: var(--orange); }
.tag--doc { color: var(--slate); }
.tag--service { color: var(--cream); }
.tag--note { color: var(--clay); }
.tag--live { color: #A6C79A; }

.chip-row { display: flex; flex-wrap: wrap; gap: 8px; }

.chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 15px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--ink-800);
  color: var(--slate);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  cursor: pointer;
  transition: color .18s var(--ease), border-color .18s var(--ease),
    background-color .18s var(--ease);
}
.chip:hover { color: var(--warm); border-color: var(--slate); }
.chip[aria-pressed="true"] {
  background: var(--cyan);
  border-color: var(--cyan);
  color: #04201F;
}

/* ---------- 9. 卡片 / 数据 / 时间轴 ---------- */
.card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: clamp(18px, 2.4vw, 26px);
  background: var(--ink-800);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition: transform .2s var(--ease), border-color .2s var(--ease),
    background-color .2s var(--ease);
}
.card:hover {
  transform: translateY(-4px);
  border-color: var(--cyan);
  background: var(--ink-700);
}

.card-title {
  color: var(--warm);
  font-size: 1.05rem;
  font-weight: 800;
  letter-spacing: -.01em;
}

.card-meta {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--rock);
}

.stat { display: flex; flex-direction: column; gap: 4px; }

.stat-value {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(1.7rem, 4vw, 2.7rem);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -.02em;
  color: var(--cyan);
}

.stat-label {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--rock);
}

.timeline {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 20px;
  padding-left: 22px;
}
.timeline::before {
  content: "";
  position: absolute;
  left: 5px;
  top: 8px;
  bottom: 8px;
  width: 1px;
  background: var(--line);
}
.timeline-item { position: relative; }
.timeline-marker {
  position: absolute;
  left: -22px;
  top: 9px;
  width: 11px;
  height: 11px;
  border-radius: 3px;
  background: var(--ink-900);
  border: 1px solid var(--cyan);
}

.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  width: fit-content;
  color: var(--cyan);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .06em;
}
.link-arrow::after {
  content: "\2192";
  transition: transform .2s var(--ease);
}
.link-arrow:hover::after { transform: translateX(4px); }

/* ---------- 10. 正文 / 旁注 / 面包屑 ---------- */
.prose {
  max-width: 38em;
  font-size: 17px;
  line-height: 1.85;
  color: var(--text-body);
}
.prose--narrow { max-width: 28em; }
.prose p + p { margin-top: 1em; }
.prose ul { margin-top: .8em; display: flex; flex-direction: column; gap: 8px; }
.prose li { padding-left: 16px; position: relative; }
.prose li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .72em;
  width: 6px;
  height: 1px;
  background: var(--clay);
}

.note {
  padding-left: 14px;
  border-left: 2px solid var(--line);
  font-size: 14px;
  line-height: 1.8;
  color: var(--rock);
}

.breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--rock);
}
.breadcrumbs > li { display: inline-flex; align-items: center; gap: 8px; }
.breadcrumbs > li + li::before { content: "/"; color: var(--line); }
.breadcrumbs a:hover { color: var(--cyan); }

/* ---------- 11. 图片容器基础规则 ---------- */
.media {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16 / 9;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--ink-800);
}
.media--wide { aspect-ratio: 21 / 9; }
.media--tall { aspect-ratio: 4 / 5; }

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

.media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg,
    rgba(11, 22, 38, .10) 0%,
    rgba(11, 22, 38, .34) 52%,
    rgba(11, 22, 38, .90) 100%);
  pointer-events: none;
}

/* 无图占位：抽象边线与看台光斑 */
.media--pitch {
  background-image:
    repeating-linear-gradient(90deg, rgba(47, 243, 224, .10) 0 1px, transparent 1px 72px),
    repeating-linear-gradient(0deg, rgba(47, 243, 224, .06) 0 1px, transparent 1px 72px),
    radial-gradient(120% 90% at 88% 0%, rgba(255, 106, 26, .18), transparent 62%);
}

.media-caption {
  position: absolute;
  left: 16px;
  right: 16px;
  bottom: 14px;
  z-index: 2;
  font-size: 13px;
  line-height: 1.6;
  color: var(--warm);
}

/* ---------- 12. Skip link ---------- */
.skip-link {
  position: fixed;
  top: -72px;
  left: 16px;
  z-index: 200;
  padding: 10px 18px;
  border-radius: 999px;
  background: var(--cyan);
  color: #04201F;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .08em;
  transition: top .16s var(--ease);
}
.skip-link:focus { top: 14px; }

/* ---------- 13. 头部 ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 80;
  background: var(--ink-900);
  border-bottom: 1px solid var(--line);
}

.header-rail {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  width: 100%;
  max-width: var(--shell);
  min-height: 68px;
  margin-inline: auto;
  padding: 12px var(--gutter);
  transition: min-height .2s var(--ease), padding .2s var(--ease);
}

.site-header[data-collapsed="true"] .header-rail {
  min-height: 54px;
  padding-block: 8px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  flex: none;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  flex: none;
  border: 1px solid var(--cyan);
  border-radius: var(--radius-sm);
  background: linear-gradient(180deg, rgba(47, 243, 224, .14), rgba(47, 243, 224, 0));
  color: var(--cyan);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .04em;
  transition: background-color .2s var(--ease), color .2s var(--ease);
}
.brand:hover .brand-mark { background: var(--cyan); color: #04201F; }

.brand-text { display: flex; flex-direction: column; line-height: 1.2; }

.brand-name {
  color: var(--warm);
  font-size: 16px;
  font-weight: 800;
  letter-spacing: -.01em;
  font-stretch: condensed;
}

.brand-meta {
  color: var(--rock);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .08em;
  text-transform: uppercase;
  white-space: nowrap;
}

/* 悬浮胶囊导航 */
.nav-capsule {
  padding: 5px;
  background: var(--ink-800);
  border: 1px solid var(--line);
  border-radius: 999px;
  box-shadow: 0 18px 36px -30px #000;
}

.nav-list { display: flex; align-items: center; gap: 2px; }

.nav-item { display: flex; }

.nav-link {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 14px;
  border-radius: 999px;
  color: var(--slate);
  font-size: 14px;
  line-height: 1.3;
  white-space: nowrap;
  transition: color .18s var(--ease), background-color .18s var(--ease),
    box-shadow .18s var(--ease), padding .2s var(--ease);
}

.nav-link[data-code="cyan"] { --dot: var(--cyan); }
.nav-link[data-code="cream"] { --dot: var(--cream); }
.nav-link[data-code="moss"] { --dot: var(--moss); }
.nav-link[data-code="orange"] { --dot: var(--orange); }
.nav-link[data-code="slate"] { --dot: var(--slate); }
.nav-link[data-code="clay"] { --dot: var(--clay); }

.nav-dot {
  width: 7px;
  height: 7px;
  flex: none;
  border-radius: 2px;
  background: var(--dot, var(--slate));
  transition: transform .2s var(--ease);
}

.nav-link::after {
  content: "";
  position: absolute;
  left: 16%;
  right: 16%;
  bottom: 4px;
  height: 1px;
  background: var(--cyan);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform .2s var(--ease);
}

.nav-link:hover {
  color: var(--warm);
  background: rgba(47, 243, 224, .06);
}
.nav-link:hover::after { transform: scaleX(1); }

.nav-link[aria-current="page"] {
  color: var(--warm);
  background: rgba(47, 243, 224, .06);
  box-shadow: inset 0 0 0 1px var(--cyan);
}

/* 移动端按钮 */
.nav-toggle {
  display: none;
  align-items: center;
  gap: 10px;
  padding: 9px 16px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--ink-800);
  color: var(--warm);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  cursor: pointer;
  transition: border-color .18s var(--ease), color .18s var(--ease);
}
.nav-toggle:hover { border-color: var(--cyan); color: var(--cyan); }

.nav-toggle-bars {
  position: relative;
  display: block;
  width: 16px;
  height: 10px;
  flex: none;
}
.nav-toggle-bars::before,
.nav-toggle-bars::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  height: 1px;
  background: var(--cyan);
  transition: transform .18s var(--ease);
}
.nav-toggle-bars::before { top: 0; }
.nav-toggle-bars::after { bottom: 0; }

.nav-toggle[aria-expanded="true"] { border-color: var(--cyan); }
.nav-toggle[aria-expanded="true"] .nav-toggle-bars::before { transform: translateY(4.5px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle-bars::after { transform: translateY(-4.5px) rotate(-45deg); }

/* 滚动进度：青→橙 */
.header-progress {
  position: absolute;
  left: 0;
  bottom: -1px;
  z-index: 2;
  width: 100%;
  height: 2px;
  transform: scaleX(0);
  transform-origin: left center;
  background: linear-gradient(90deg, var(--cyan), var(--orange));
}

/* ---------- 14. 页脚 ---------- */
.site-footer {
  margin-top: clamp(52px, 8vw, 110px);
  padding-block: clamp(44px, 6vw, 74px) 26px;
  border-top: 1px solid var(--line);
  background-color: var(--ink-900);
  background-image: linear-gradient(180deg, rgba(18, 35, 58, .70), rgba(11, 22, 38, 0) 62%);
  color: var(--slate);
  font-size: 14px;
}

.footer-shell {
  width: 100%;
  max-width: var(--shell);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.footer-top {
  display: grid;
  grid-template-columns: minmax(250px, 1.6fr) repeat(3, minmax(180px, 1fr));
  gap: clamp(28px, 4vw, 48px);
}

.footer-brand {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 14px;
}

.footer-brand-line { display: flex; align-items: center; gap: 12px; }

.footer-brand-mark {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  flex: none;
  border: 1px solid var(--cyan);
  border-radius: var(--radius-sm);
  color: var(--cyan);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .04em;
}

.footer-brand-name {
  color: var(--warm);
  font-size: 17px;
  font-weight: 800;
  letter-spacing: -.01em;
  font-stretch: condensed;
}

.footer-brand-meta {
  max-width: 30em;
  color: var(--rock);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .04em;
  line-height: 1.8;
}

.footer-block-title {
  padding-bottom: 10px;
  margin-bottom: 16px;
  border-bottom: 1px solid var(--line);
  color: var(--rock);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 400;
  letter-spacing: .08em;
  text-transform: uppercase;
}

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

.footer-link {
  position: relative;
  display: inline-flex;
  align-items: center;
  width: fit-content;
  color: var(--slate);
  transition: color .18s var(--ease);
}
.footer-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 100%;
  height: 1px;
  background: var(--cyan);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform .2s var(--ease);
}
.footer-link:hover { color: var(--warm); }
.footer-link:hover::after { transform: scaleX(1); }

.footer-link--legal { font-family: var(--font-mono); font-size: 12px; letter-spacing: .08em; }

.footer-contact { display: flex; flex-direction: column; gap: 16px; }

.footer-contact-row { display: flex; flex-direction: column; gap: 4px; align-items: flex-start; }

.footer-contact-label {
  color: var(--rock);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .08em;
}

.footer-contact-value { color: var(--warm); font-size: 14px; line-height: 1.7; }

.footer-copy {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 6px;
  padding: 5px 13px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: transparent;
  color: var(--slate);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .08em;
  cursor: pointer;
  transition: border-color .18s var(--ease), color .18s var(--ease),
    background-color .18s var(--ease);
}
.footer-copy:hover { border-color: var(--cyan); color: var(--warm); }
.footer-copy[data-state="done"] {
  border-color: var(--moss);
  background: rgba(110, 138, 98, .16);
  color: #B9D6AE;
}
.footer-copy[data-state="fail"] {
  border-color: var(--orange);
  color: #FFB489;
}

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px 28px;
  margin-top: clamp(34px, 5vw, 56px);
  padding-top: 22px;
  border-top: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--rock);
}

.footer-filing { color: var(--slate); }

.footer-legal { display: flex; flex-wrap: wrap; gap: 8px 20px; }

.footer-note { color: var(--rock); }

/* ---------- 15. 焦点与动效偏好 ---------- */
:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
  border-radius: 6px;
}

.skip-link:focus-visible { outline-color: var(--ink-900); outline-offset: 2px; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *,
  *::before,
  *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
  }
  .card:hover,
  .btn:hover { transform: none; }
}

/* ---------- 16. 响应式 ---------- */
@media (max-width: 1200px) {
  .nav-link { padding: 8px 11px; font-size: 13px; }
}

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

@media (max-width: 959px) {
  /* 导航折叠为底部功能坞 */
  .nav-toggle { display: inline-flex; }

  .nav-capsule {
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 90;
    padding: 16px var(--gutter) calc(18px + env(safe-area-inset-bottom, 0px));
    border: 0;
    border-top: 1px solid var(--line);
    border-radius: 18px 18px 0 0;
    box-shadow: 0 -24px 54px -34px #000;
    transform: translateY(105%);
    visibility: hidden;
    transition: transform .24s var(--ease), visibility .24s linear;
  }

  .nav-capsule[data-open] {
    transform: translateY(0);
    visibility: visible;
  }

  .nav-list {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 8px;
    width: 100%;
    max-width: 560px;
    margin-inline: auto;
  }

  .nav-link {
    justify-content: flex-start;
    padding: 13px 15px;
    border-radius: 12px;
    background: rgba(30, 58, 82, .45);
    color: var(--warm);
    font-size: 15px;
  }
  .nav-link:hover { background: rgba(47, 243, 224, .10); }
  .nav-link[aria-current="page"] { background: rgba(47, 243, 224, .10); }
  .nav-link::after { display: none; }

  .site-header[data-collapsed="true"] .header-rail { min-height: 62px; }
}

@media (min-width: 600px) and (max-width: 959px) {
  .nav-list { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

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

@media (max-width: 719px) {
  .grid--2,
  .grid--3 { grid-template-columns: minmax(0, 1fr); }
  .footer-bottom { flex-direction: column; align-items: flex-start; }
}

@media (max-width: 639px) {
  body { font-size: 15.5px; }
  .footer-top { grid-template-columns: minmax(0, 1fr); gap: 32px; }
  .panel { border-radius: 12px; }
}

@media (max-width: 420px) {
  .brand-meta { display: none; }
  .nav-toggle-label { display: none; }
  .nav-toggle { padding: 10px 12px; }
}

/* 桌面端滚动收窄为图标态 */
@media (min-width: 960px) {
  .site-header[data-collapsed="true"] .nav-link { padding: 9px 11px; }
  .site-header[data-collapsed="true"] .nav-label {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip-path: inset(50%);
    white-space: nowrap;
    border: 0;
  }
  .site-header[data-collapsed="true"] .nav-dot { transform: scale(1.3); }
}