/* ==========================================================================
   博喜体育 · 共享样式表  /assets/site.css
   顺序：reset → 变量 → 基础排版 → 布局 → 通用组件 → 页头 → 页脚 → 动效 → 响应式
   ========================================================================== */

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

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

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

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

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

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

button {
  background: none;
  border: 0;
  cursor: pointer;
  -webkit-appearance: none;
  appearance: none;
}

a { color: inherit; }

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

:where([id]) { scroll-margin-top: 132px; }

/* ---------- 变量 ---------- */
:root {
  /* 色板 */
  --ink-950: #051713;
  --ink-900: #08201B;
  --ink-800: #0B2E26;
  --ink-700: #123B31;
  --teal-800: #0E3B4A;
  --teal-600: #15576C;
  --wine-800: #6B1F3A;
  --wine-600: #8C2C4E;
  --cyan: #2BE8C0;
  --orange: #FF8A3D;
  --amber: #FFD166;
  --paper: #F3F7F5;
  --mist: #93A8A2;
  --white: #FFFFFF;

  /* 字号体系 */
  --font-sans: "PingFang SC", "Hiragino Sans GB", "Source Han Sans SC",
    "Noto Sans SC", "Microsoft YaHei", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-num: "Barlow Condensed", "Oswald", "DIN Condensed", "Arial Narrow",
    "Helvetica Neue", Arial, sans-serif;

  /* 尺度 */
  --wrap: 1240px;
  --gutter: clamp(20px, 4vw, 56px);
  --radius-lg: 28px;
  --radius-md: 16px;
  --radius-sm: 8px;

  --space-1: 8px;
  --space-2: 16px;
  --space-3: 24px;
  --space-4: 32px;
  --space-5: 48px;
  --space-6: 72px;
  --space-7: 96px;

  --ease: cubic-bezier(.22, .72, .28, 1);
  --dur: 300ms;

  --line-soft: rgba(243, 247, 245, .12);
  --line-cyan: rgba(43, 232, 192, .24);
}

/* ---------- 基础排版 ---------- */
body {
  background-color: var(--ink-800);
  color: var(--paper);
  font-family: var(--font-sans);
  font-size: clamp(16px, .35vw + 14.4px, 17.5px);
  font-weight: 400;
  line-height: 1.75;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-wrap: break-word;
}

::selection {
  background-color: var(--cyan);
  color: var(--ink-950);
}

/* ---------- 布局容器 ---------- */
.wrap {
  width: 100%;
  max-width: var(--wrap);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.wrap--narrow { max-width: 860px; }

.grid {
  display: grid;
  gap: var(--space-4);
}

.grid--12 {
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: clamp(16px, 2.4vw, 32px);
}

.section {
  position: relative;
  padding-block: clamp(56px, 8vw, 96px);
}

.section--ink { background-color: var(--ink-800); }
.section--ink-deep { background-color: var(--ink-900); }
.section--teal { background-color: var(--teal-800); }
.section--wine { background-color: var(--wine-800); }

.section--paper {
  background-color: var(--paper);
  color: var(--ink-800);
}

.section--paper .lede { color: rgba(11, 46, 38, .76); }
.section--paper .t-annot { color: rgba(11, 46, 38, .55); }
.section--paper .rule { background-color: rgba(11, 46, 38, .14); }

.rule {
  height: 1px;
  border: 0;
  background-color: var(--line-soft);
  margin: 0;
}

/* ---------- 字号与文本 ---------- */
.t-display {
  font-size: clamp(34px, 5.6vw, 64px);
  line-height: 1.14;
  font-weight: 700;
  letter-spacing: .015em;
}

.t-title {
  font-size: clamp(24px, 3.4vw, 40px);
  line-height: 1.26;
  font-weight: 700;
}

.t-sub {
  font-size: clamp(18px, 1.6vw, 22px);
  line-height: 1.45;
  font-weight: 600;
}

.t-annot {
  font-size: 12.5px;
  font-weight: 500;
  letter-spacing: .22em;
  color: var(--mist);
}

.num {
  font-family: var(--font-num);
  font-variant-numeric: tabular-nums;
  font-weight: 600;
  letter-spacing: -.01em;
}

.lede {
  font-size: clamp(17px, .9vw + 14.5px, 20px);
  line-height: 1.78;
  color: rgba(243, 247, 245, .82);
  max-width: 34em;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 12.5px;
  font-weight: 500;
  letter-spacing: .26em;
  color: var(--mist);
}

.eyebrow::before {
  content: "";
  display: block;
  width: 26px;
  height: 1px;
  background-color: currentColor;
  opacity: .8;
}

.annot--vertical {
  writing-mode: vertical-rl;
  text-orientation: mixed;
  font-size: 12px;
  letter-spacing: .3em;
  color: var(--mist);
  line-height: 1;
}

.prose {
  max-width: 680px;
  font-size: clamp(16px, .35vw + 14.4px, 17.5px);
  line-height: 1.85;
  color: rgba(243, 247, 245, .84);
}

.prose > * + * { margin-top: 1.05em; }

.prose h2 {
  margin-top: 1.9em;
  font-size: clamp(22px, 2vw, 30px);
  line-height: 1.34;
  font-weight: 700;
  color: var(--paper);
}

.prose h3 {
  margin-top: 1.6em;
  font-size: 18px;
  line-height: 1.5;
  font-weight: 600;
  color: var(--paper);
}

.prose ul, .prose ol { padding-left: 1.15em; }
.prose ul li { list-style: none; position: relative; }
.prose ul li::before {
  content: "";
  position: absolute;
  left: -1.15em;
  top: .8em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--cyan);
  opacity: .85;
}
.prose ol { list-style: decimal; }

.prose a {
  color: var(--cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
}

.section--paper .prose { color: rgba(11, 46, 38, .84); }
.section--paper .prose h2,
.section--paper .prose h3 { color: var(--ink-800); }
.section--paper .prose a { color: var(--wine-800); }

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

a:focus:not(:focus-visible),
button:focus:not(:focus-visible) { outline: none; }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 26px;
  border: 1px solid transparent;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: .04em;
  text-decoration: none;
  cursor: pointer;
  transition: transform var(--dur) var(--ease),
    background-color var(--dur) var(--ease),
    color var(--dur) var(--ease),
    border-color var(--dur) var(--ease),
    box-shadow var(--dur) var(--ease);
}

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

.btn--primary {
  background-color: var(--orange);
  color: #2A1305;
  box-shadow: 0 12px 30px -16px rgba(255, 138, 61, .95);
}

.btn--primary:hover { background-color: #FFA05F; }

.btn--soft {
  background-color: rgba(243, 247, 245, .08);
  border-color: rgba(243, 247, 245, .14);
  color: var(--paper);
}

.btn--soft:hover {
  background-color: rgba(243, 247, 245, .14);
  border-color: rgba(243, 247, 245, .26);
}

.btn--ghost {
  background-color: transparent;
  border-color: rgba(243, 247, 245, .28);
  color: var(--paper);
}

.btn--ghost:hover {
  border-color: var(--cyan);
  color: var(--cyan);
}

.btn--sm { padding: 10px 18px; font-size: 13.5px; }

.section--paper .btn--ghost {
  border-color: rgba(11, 46, 38, .28);
  color: var(--ink-800);
}

.section--paper .btn--ghost:hover {
  border-color: var(--wine-800);
  color: var(--wine-800);
}

.section--paper .btn--soft {
  background-color: rgba(11, 46, 38, .07);
  border-color: rgba(11, 46, 38, .12);
  color: var(--ink-800);
}

/* ---------- 卡片与面板 ---------- */
.card {
  position: relative;
  padding: clamp(20px, 2.4vw, 32px);
  background-color: rgba(243, 247, 245, .04);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-md);
}

.card--paper {
  background-color: var(--white);
  color: var(--ink-800);
  border-color: transparent;
}

.card--paper .lede { color: rgba(11, 46, 38, .74); }

.panel {
  position: relative;
  padding: clamp(22px, 2.8vw, 40px);
  border: 1px solid var(--line-cyan);
  border-radius: var(--radius-lg) var(--radius-sm) var(--radius-lg) var(--radius-sm);
  background-image: linear-gradient(155deg, rgba(43, 232, 192, .09), rgba(8, 32, 27, .46) 62%);
  background-color: rgba(8, 32, 27, .5);
}

/* ---------- 标签 ---------- */
.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: .08em;
  color: var(--cyan);
  background-color: rgba(43, 232, 192, .12);
  border: 1px solid var(--line-cyan);
}

.tag--wine {
  color: #FFC9DC;
  background-color: rgba(107, 31, 58, .58);
  border-color: rgba(255, 201, 220, .24);
}

.tag--amber {
  color: var(--amber);
  background-color: rgba(255, 209, 102, .13);
  border-color: rgba(255, 209, 102, .3);
}

/* ---------- 面包屑 ---------- */
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 12.5px;
  letter-spacing: .08em;
  color: var(--mist);
}

.breadcrumb__sep {
  color: rgba(147, 168, 162, .55);
}

.breadcrumb a {
  color: var(--mist);
  text-decoration: none;
  transition: color var(--dur) var(--ease);
}

.breadcrumb a:hover { color: var(--cyan); }

.breadcrumb [aria-current="page"] { color: var(--paper); }

.section--paper .breadcrumb { color: rgba(11, 46, 38, .55); }
.section--paper .breadcrumb a { color: rgba(11, 46, 38, .65); }
.section--paper .breadcrumb a:hover { color: var(--wine-800); }
.section--paper .breadcrumb [aria-current="page"] { color: var(--ink-800); }

/* ---------- 图片容器（供页面阶段放图） ---------- */
.figure {
  display: block;
  margin: 0;
}

.figure__frame,
.figure__media {
  position: relative;
  display: block;
  width: 100%;
  overflow: hidden;
  background-color: var(--ink-900);
  border: 1px solid rgba(243, 247, 245, .08);
  border-radius: var(--radius-lg) var(--radius-sm) var(--radius-lg) var(--radius-sm);
}

.figure__frame img,
.figure__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.figure__placeholder {
  width: 100%;
  height: 100%;
  background-image:
    linear-gradient(135deg, rgba(43, 232, 192, .16), rgba(43, 232, 192, 0) 56%),
    repeating-linear-gradient(45deg, rgba(243, 247, 245, .04) 0 2px, rgba(243, 247, 245, 0) 2px 12px);
  background-color: var(--ink-900);
}

.figure__caption {
  margin-top: 12px;
  font-size: 12.5px;
  line-height: 1.65;
  letter-spacing: .06em;
  color: var(--mist);
}

.section--paper .figure__caption { color: rgba(11, 46, 38, .58); }

.figure--tilt .figure__frame { transform: rotate(-.8deg); }

.ratio-21x9 { aspect-ratio: 21 / 9; }
.ratio-16x9 { aspect-ratio: 16 / 9; }
.ratio-3x2 { aspect-ratio: 3 / 2; }
.ratio-4x3 { aspect-ratio: 4 / 3; }
.ratio-1x1 { aspect-ratio: 1 / 1; }

/* ---------- 统计数字块 ---------- */
.stat {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.stat__num {
  font-family: var(--font-num);
  font-variant-numeric: tabular-nums;
  font-size: clamp(44px, 6.5vw, 84px);
  font-weight: 600;
  line-height: .95;
  letter-spacing: -.015em;
  color: var(--cyan);
}

.stat__label {
  font-size: 13px;
  letter-spacing: .08em;
  color: var(--mist);
}

.section--paper .stat__num { color: var(--wine-800); }
.section--paper .stat__label { color: rgba(11, 46, 38, .6); }

/* ==========================================================================
   页头
   ========================================================================== */
.skip-link {
  position: fixed;
  top: -120px;
  left: var(--gutter);
  z-index: 140;
  padding: 12px 20px;
  border-radius: var(--radius-sm);
  background-color: var(--orange);
  color: #2A1305;
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  transition: top var(--dur) var(--ease);
}

.skip-link:focus { top: 16px; }

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

.site-header__bar {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  grid-template-areas: "status masthead tools";
  align-items: center;
  gap: 16px;
  width: 100%;
  max-width: var(--wrap);
  margin-inline: auto;
  padding: 14px var(--gutter) 10px;
}

/* 订阅状态灯 */
.header-status {
  grid-area: status;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  justify-self: start;
  padding: 6px 14px 6px 10px;
  border: 1px solid var(--line-cyan);
  border-radius: 999px;
  background-color: rgba(43, 232, 192, .06);
  font-size: 12px;
  line-height: 1.4;
  white-space: nowrap;
}

.header-status__dot {
  flex: none;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--cyan);
  animation: statusPulse 2.6s var(--ease) infinite;
}

@keyframes statusPulse {
  0% { box-shadow: 0 0 0 0 rgba(43, 232, 192, .5); }
  70% { box-shadow: 0 0 0 10px rgba(43, 232, 192, 0); }
  100% { box-shadow: 0 0 0 0 rgba(43, 232, 192, 0); }
}

.header-status__label {
  color: var(--mist);
  letter-spacing: .1em;
}

.header-status__value {
  color: var(--cyan);
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  letter-spacing: .04em;
}

/* 刊头 */
.masthead {
  grid-area: masthead;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  text-align: center;
}

.masthead__brand {
  font-size: clamp(24px, 3.2vw, 38px);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: .16em;
  text-indent: .16em;
  color: var(--paper);
  text-decoration: none;
  transition: color var(--dur) var(--ease);
}

.masthead__brand:hover { color: var(--cyan); }

.masthead__tagline {
  font-size: 11.5px;
  letter-spacing: .32em;
  text-indent: .32em;
  color: var(--mist);
  white-space: nowrap;
}

/* 工具区与菜单按钮 */
.header-tools {
  grid-area: tools;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 10px;
}

.nav-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border: 1px solid rgba(243, 247, 245, .22);
  border-radius: 12px;
  color: var(--paper);
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}

.nav-toggle:hover { border-color: var(--cyan); color: var(--cyan); }

.nav-toggle__bars {
  position: relative;
  display: block;
  width: 20px;
  height: 2px;
  border-radius: 2px;
  background-color: currentColor;
  transition: background-color var(--dur) var(--ease);
}

.nav-toggle__bars::before,
.nav-toggle__bars::after {
  content: "";
  position: absolute;
  left: 0;
  width: 20px;
  height: 2px;
  border-radius: 2px;
  background-color: currentColor;
  transition: transform var(--dur) var(--ease);
}

.nav-toggle__bars::before { top: -6px; }
.nav-toggle__bars::after { top: 6px; }

.site-header.is-nav-open .nav-toggle__bars { background-color: transparent; }
.site-header.is-nav-open .nav-toggle__bars::before { transform: translateY(6px) rotate(45deg); }
.site-header.is-nav-open .nav-toggle__bars::after { transform: translateY(-6px) rotate(-45deg); }

/* 主导航 */
.site-nav {
  width: 100%;
  max-width: var(--wrap);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.site-nav__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: clamp(20px, 4.4vw, 64px);
  padding-bottom: 14px;
}

.site-nav__link {
  display: inline-block;
  padding: 4px 2px;
  border-bottom: 2px solid transparent;
  font-size: 15px;
  font-weight: 500;
  letter-spacing: .1em;
  color: rgba(243, 247, 245, .72);
  text-decoration: none;
  transition: color var(--dur) var(--ease),
    border-color var(--dur) var(--ease);
}

.site-nav__link:hover,
.site-nav__link:focus-visible {
  color: var(--cyan);
  border-bottom-color: rgba(43, 232, 192, .45);
}

.site-nav__link[aria-current="page"] {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

/* ==========================================================================
   页脚
   ========================================================================== */
.site-footer {
  background-color: var(--ink-900);
  color: rgba(243, 247, 245, .78);
  border-top: 1px solid var(--line-cyan);
}

.footer-top {
  display: grid;
  grid-template-columns: minmax(220px, 1fr) minmax(0, 2.15fr);
  gap: clamp(32px, 5vw, 72px);
  padding-block: clamp(48px, 7vw, 88px) clamp(32px, 5vw, 56px);
}

.footer-brand__name {
  font-size: clamp(22px, 2.4vw, 30px);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: .14em;
  color: var(--paper);
}

.footer-brand__line {
  margin-top: 12px;
  max-width: 20em;
  font-size: 14px;
  line-height: 1.75;
  color: var(--mist);
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-4) clamp(24px, 3vw, 48px);
}

.footer-col__title {
  margin-bottom: 16px;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: .24em;
  color: var(--mist);
}

.footer-col__list {
  display: grid;
  gap: 10px;
  font-size: 14.5px;
  line-height: 1.6;
}

.footer-col__list a {
  color: rgba(243, 247, 245, .78);
  text-decoration: none;
  transition: color var(--dur) var(--ease);
}

.footer-col__list a:hover { color: var(--cyan); }

.footer-col__list--plain {
  font-size: 13.5px;
  line-height: 1.85;
  color: rgba(243, 247, 245, .62);
}

.footer-bottom {
  background-color: var(--ink-950);
  border-top: 1px solid rgba(243, 247, 245, .1);
}

.footer-bottom__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px 28px;
  padding-block: 20px;
  font-size: 13px;
  color: var(--mist);
}

.footer-legal { letter-spacing: .04em; }

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

.footer-legal__links a {
  color: rgba(243, 247, 245, .72);
  text-decoration: none;
  transition: color var(--dur) var(--ease);
}

.footer-legal__links a:hover { color: var(--cyan); }

/* ==========================================================================
   JS 注入的全局控件
   ========================================================================== */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 200;
  height: 2px;
  transform: scaleX(0);
  transform-origin: 0 50%;
  background-image: linear-gradient(90deg, var(--cyan), var(--orange));
  pointer-events: none;
}

.to-top {
  position: fixed;
  right: clamp(16px, 3vw, 32px);
  bottom: clamp(16px, 3vw, 32px);
  z-index: 120;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 20px;
  border: 1px solid rgba(43, 232, 192, .35);
  border-radius: 999px;
  background-color: rgba(8, 32, 27, .92);
  color: var(--paper);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: .1em;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: opacity var(--dur) var(--ease),
    transform var(--dur) var(--ease),
    border-color var(--dur) var(--ease),
    color var(--dur) var(--ease),
    visibility var(--dur);
}

.to-top[data-visible] {
  opacity: 1;
  visibility: visible;
  transform: none;
}

.to-top:hover {
  border-color: var(--cyan);
  color: var(--cyan);
}

/* ---------- 显现与数字上翻 ---------- */
.js-reveal [data-reveal] {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 360ms var(--ease), transform 360ms var(--ease);
}

.js-reveal [data-reveal].is-revealed {
  opacity: 1;
  transform: none;
}

@keyframes tickUp {
  from { transform: translateY(.42em); opacity: .2; }
  to { transform: none; opacity: 1; }
}

[data-tick].is-ticked {
  animation: tickUp .42s var(--ease) both;
}

/* ==========================================================================
   响应式
   ========================================================================== */
@media (min-width: 900px) {
  .col-4 { grid-column: span 4; }
  .col-5 { grid-column: span 5; }
  .col-6 { grid-column: span 6; }
  .col-7 { grid-column: span 7; }
  .col-8 { grid-column: span 8; }
  .col-12 { grid-column: span 12; }
}

@media (max-width: 1023px) {
  .footer-top { grid-template-columns: 1fr; }
  .footer-brand__line { max-width: 32em; }
}

@media (max-width: 899px) {
  .col-4, .col-5, .col-6, .col-7, .col-8, .col-12 { grid-column: 1 / -1; }

  .site-header__bar {
    grid-template-columns: 1fr auto;
    grid-template-areas:
      "status status"
      "masthead tools";
    gap: 10px 12px;
    padding-block: 12px 10px;
  }

  .header-status {
    justify-self: stretch;
    justify-content: flex-start;
  }

  .masthead {
    align-items: flex-start;
    text-align: left;
  }

  .masthead__tagline {
    white-space: normal;
    letter-spacing: .2em;
    text-indent: .2em;
  }

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

  .site-nav {
    display: none;
    border-top: 1px solid rgba(43, 232, 192, .14);
  }

  .site-nav[data-open] {
    display: block;
    animation: navDrop .24s var(--ease) both;
  }

  .site-nav__list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 8px 0 18px;
  }

  .site-nav__item { width: 100%; }

  .site-nav__link {
    display: block;
    padding: 14px 4px;
    border-bottom: 1px solid rgba(243, 247, 245, .1);
    border-left: 2px solid transparent;
    font-size: 16px;
    letter-spacing: .12em;
  }

  .site-nav__link:hover,
  .site-nav__link:focus-visible {
    border-bottom-color: rgba(243, 247, 245, .1);
    border-left-color: rgba(43, 232, 192, .5);
  }

  .site-nav__link[aria-current="page"] {
    border-bottom-color: rgba(243, 247, 245, .1);
    border-left-color: var(--cyan);
    padding-left: 14px;
  }

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

@keyframes navDrop {
  from { opacity: 0; transform: translateY(-6px); }
  to { opacity: 1; transform: none; }
}

@media (max-width: 560px) {
  .footer-grid { grid-template-columns: 1fr; gap: var(--space-3); }
  .footer-bottom__inner { flex-direction: column; align-items: flex-start; }
  .to-top { padding: 10px 16px; font-size: 12.5px; }
}

/* ==========================================================================
   减弱动态
   ========================================================================== */
@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;
  }

  .header-status__dot { animation: none; }

  .js-reveal [data-reveal] {
    transform: none;
    transition: opacity .2s linear;
  }

  [data-tick].is-ticked { animation: none; }

  .figure--tilt .figure__frame { transform: none; }
}