/* ==========================================================================
   B体育主站 · 共享样式 /assets/site.css
   夜间赛场数据台：深蓝黑基底 + 荧光青索引 + 橙红行动 + 珠宝色分区
   ========================================================================== */

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

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

body {
  margin: 0;
  background: var(--bg-ink);
  color: var(--text-main);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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

:focus-visible {
  outline: 2px solid var(--accent-cyan);
  outline-offset: 3px;
  border-radius: 8px;
}

/* ---------- tokens ---------- */
:root {
  --bg-ink: #050A18;
  --bg-ink-2: #0B1226;
  --line-steel: #263552;
  --jewel-teal: #0B3B3C;
  --jewel-wine: #4A1024;
  --jewel-indigo: #1B1145;
  --accent-cyan: #00F5D4;
  --accent-orange: #FF5A36;
  --accent-gold: #F2C14E;
  --text-main: #EAF0FF;
  --text-muted: #8A9BB8;
  --data-up: #4ADE80;
  --data-down: #F87171;

  --font-sans: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", "Source Han Sans SC",
    system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --font-mono: "JetBrains Mono", "Roboto Mono", ui-monospace, SFMono-Regular, Menlo,
    Consolas, "Courier New", monospace;

  --radius-lg: 28px;
  --radius-md: 18px;
  --radius-sm: 12px;
  --radius-pill: 999px;

  --wrap: 1320px;
  --gutter: clamp(16px, 4vw, 48px);
  --header-h: 66px;

  --ease: cubic-bezier(.22, .68, .24, 1);
}

/* ---------- 排版 ---------- */
.bs-h1 {
  font-size: clamp(34px, 6.6vw, 86px);
  font-weight: 900;
  line-height: 1.03;
  letter-spacing: -0.025em;
  text-wrap: balance;
}

.bs-h2 {
  font-size: clamp(23px, 3.4vw, 44px);
  font-weight: 850;
  line-height: 1.12;
  letter-spacing: -0.018em;
}

.bs-h3 {
  font-size: clamp(17px, 1.7vw, 22px);
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: -0.01em;
}

.bs-lead {
  font-size: clamp(15px, 1.5vw, 18px);
  line-height: 1.62;
  color: var(--text-muted);
}

.bs-annot {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  text-transform: uppercase;
}

.bs-vlabel {
  writing-mode: vertical-rl;
  text-orientation: mixed;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--text-muted);
}

.bs-mono {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.01em;
}

.bs-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent-cyan);
}

.bs-eyebrow::before {
  content: "";
  width: 26px;
  height: 2px;
  border-radius: 2px;
  background: var(--accent-cyan);
}

.bs-rule {
  border: 0;
  height: 1px;
  background: var(--line-steel);
  margin: clamp(24px, 4vw, 48px) 0;
}

/* ---------- 数据 ---------- */
.bs-data {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.01em;
}
.bs-data--up { color: var(--data-up); }
.bs-data--down { color: var(--data-down); }
.bs-data--gold { color: var(--accent-gold); }

.bs-bar {
  height: 6px;
  width: 100%;
  border-radius: var(--radius-pill);
  background: rgba(255, 255, 255, 0.08);
  overflow: hidden;
}

.bs-bar__fill {
  display: block;
  height: 100%;
  width: var(--fill, 60%);
  border-radius: var(--radius-pill);
  background: linear-gradient(90deg, var(--accent-cyan), var(--data-up));
  transition: width 0.6s var(--ease);
}

/* ---------- 按钮 ---------- */
.bs-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  padding: 12px 22px;
  border: 1px solid transparent;
  border-radius: var(--radius-pill);
  font-family: var(--font-sans);
  font-size: 15px;
  font-weight: 700;
  line-height: 1;
  text-decoration: none;
  cursor: pointer;
  transition: transform 0.18s var(--ease), box-shadow 0.18s var(--ease),
    border-color 0.18s var(--ease), background-color 0.18s var(--ease), color 0.18s var(--ease);
}

.bs-btn:hover { transform: translateY(-2px); }

.bs-btn--cyan {
  background: var(--accent-cyan);
  color: #03211E;
  box-shadow: 0 14px 30px -18px rgba(0, 245, 212, 0.95);
}
.bs-btn--cyan:hover { box-shadow: 0 0 0 5px rgba(0, 245, 212, 0.16), 0 18px 34px -18px rgba(0, 245, 212, 1); }

.bs-btn--orange {
  background: var(--accent-orange);
  color: #2A0A03;
  box-shadow: 0 14px 30px -18px rgba(255, 90, 54, 0.95);
}
.bs-btn--orange:hover { box-shadow: 0 0 0 5px rgba(255, 90, 54, 0.18), 0 18px 34px -18px rgba(255, 90, 54, 1); }

.bs-btn--ghost {
  background: rgba(255, 255, 255, 0.03);
  border-color: var(--line-steel);
  color: var(--text-main);
}
.bs-btn--ghost:hover {
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
  background: rgba(0, 245, 212, 0.08);
}

.bs-btn--sm {
  padding: 9px 16px;
  font-size: 13.5px;
}

/* ---------- 胶囊 / 标签 ---------- */
.bs-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  border: 1px solid var(--line-steel);
  border-radius: var(--radius-pill);
  background: rgba(255, 255, 255, 0.03);
  color: var(--text-muted);
  font-size: 13px;
  font-weight: 600;
  text-decoration: none;
  white-space: nowrap;
  cursor: pointer;
  transition: color 0.18s var(--ease), border-color 0.18s var(--ease), background-color 0.18s var(--ease);
}

.bs-pill:hover {
  color: var(--text-main);
  border-color: var(--accent-cyan);
  background: rgba(0, 245, 212, 0.08);
}

.bs-pill[aria-pressed="true"],
.bs-pill.is-active {
  color: #03211E;
  background: var(--accent-cyan);
  border-color: var(--accent-cyan);
}

.bs-tag {
  display: inline-flex;
  align-items: center;
  padding: 4px 10px;
  border: 1px solid var(--line-steel);
  border-radius: 7px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.bs-tag--live {
  color: var(--accent-orange);
  border-color: rgba(255, 90, 54, 0.5);
  background: rgba(255, 90, 54, 0.1);
}

.bs-tag--gold {
  color: var(--accent-gold);
  border-color: rgba(242, 193, 78, 0.45);
  background: rgba(242, 193, 78, 0.1);
}

/* ---------- 布局容器 ---------- */
.bs-wrap {
  width: 100%;
  max-width: var(--wrap);
  margin: 0 auto;
  padding-left: var(--gutter);
  padding-right: var(--gutter);
}

.bs-section {
  position: relative;
  padding-top: clamp(36px, 6vw, 88px);
  padding-bottom: clamp(36px, 6vw, 88px);
  scroll-margin-top: calc(var(--header-h) + 24px);
}

.bs-section--teal { background: linear-gradient(158deg, var(--jewel-teal) 0%, #06201F 72%); }
.bs-section--wine { background: linear-gradient(158deg, var(--jewel-wine) 0%, #25080F 72%); }
.bs-section--indigo { background: linear-gradient(158deg, var(--jewel-indigo) 0%, #0A0722 72%); }

.bs-grid {
  display: grid;
  gap: clamp(14px, 2vw, 24px);
}
.bs-grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.bs-grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.bs-grid--4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }

.bs-stack { display: grid; gap: 14px; align-content: start; }
.bs-cluster { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; }

/* ---------- 卡片 ---------- */
.bs-card {
  position: relative;
  display: block;
  padding: clamp(16px, 2.4vw, 24px);
  border: 1px solid var(--line-steel);
  border-radius: var(--radius-md);
  background: var(--bg-ink-2);
  transition: transform 0.2s var(--ease), border-color 0.2s var(--ease), box-shadow 0.2s var(--ease);
}

.bs-card:hover {
  transform: translateY(-3px);
  border-color: rgba(0, 245, 212, 0.5);
  box-shadow: 0 22px 44px -30px rgba(0, 245, 212, 0.9);
}

.bs-card__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 12px;
}

.bs-card__title {
  font-size: 17px;
  font-weight: 800;
  letter-spacing: -0.01em;
}

.bs-card__meta {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--text-muted);
}

/* ---------- 媒体容器（页面阶段放图片） ---------- */
.bs-media {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16 / 9;
  border: 1px solid var(--line-steel);
  border-radius: var(--radius-lg);
  background:
    radial-gradient(120% 140% at 10% 0%, rgba(0, 245, 212, 0.2), transparent 56%),
    radial-gradient(120% 120% at 100% 100%, rgba(255, 90, 54, 0.18), transparent 58%),
    var(--bg-ink-2);
}

.bs-media > img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: contrast(1.08) saturate(1.05);
}

.bs-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(5, 10, 24, 0) 42%, rgba(5, 10, 24, 0.82) 100%);
  pointer-events: none;
}

.bs-media__cap {
  position: absolute;
  left: 16px;
  right: 16px;
  bottom: 14px;
  z-index: 2;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--text-main);
}

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

/* ---------- 时间线 ---------- */
.bs-timeline {
  position: relative;
  padding-left: 30px;
}

.bs-timeline::before {
  content: "";
  position: absolute;
  left: 5px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  border-radius: 2px;
  background: linear-gradient(180deg, var(--accent-cyan), rgba(38, 53, 82, 0.25));
}

.bs-timeline__item {
  position: relative;
  padding-bottom: 26px;
}
.bs-timeline__item:last-child { padding-bottom: 0; }

.bs-timeline__dot {
  position: absolute;
  left: -30px;
  top: 5px;
  width: 12px;
  height: 12px;
  border: 2px solid var(--accent-cyan);
  border-radius: 50%;
  background: var(--bg-ink);
  box-shadow: 0 0 0 4px rgba(0, 245, 212, 0.1);
}

.bs-timeline__body { display: grid; gap: 6px; }

/* ---------- 面包屑 ---------- */
.bs-breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding-top: 18px;
  font-size: 13px;
  color: var(--text-muted);
}

.bs-breadcrumb__link {
  color: var(--text-muted);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.18s var(--ease), border-color 0.18s var(--ease);
}
.bs-breadcrumb__link:hover { color: var(--accent-cyan); border-bottom-color: var(--accent-cyan); }

.bs-breadcrumb__sep { font-family: var(--font-mono); opacity: 0.5; }
.bs-breadcrumb__current { color: var(--text-main); font-weight: 600; }

/* ---------- 显现 ---------- */
.js [data-reveal] {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.5s var(--ease), transform 0.5s var(--ease);
}
.js [data-reveal].is-visible {
  opacity: 1;
  transform: none;
}

/* ==========================================================================
   HEADER
   ========================================================================== */
.bs-skip {
  position: absolute;
  left: 14px;
  top: -70px;
  z-index: 200;
  padding: 10px 18px;
  border-radius: var(--radius-pill);
  background: var(--accent-cyan);
  color: #03211E;
  font-weight: 800;
  text-decoration: none;
  transition: top 0.2s var(--ease);
}
.bs-skip:focus { top: 14px; }

.bs-header {
  position: sticky;
  top: 0;
  z-index: 90;
  background: rgba(5, 10, 24, 0.9);
  -webkit-backdrop-filter: blur(16px);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--line-steel);
}

.bs-header__inner {
  display: flex;
  align-items: center;
  gap: 20px;
  width: 100%;
  max-width: var(--wrap);
  min-height: var(--header-h);
  margin: 0 auto;
  padding: 11px var(--gutter);
}

.bs-header__brandside {
  display: flex;
  align-items: center;
  gap: 10px;
  flex: 0 1 auto;
  min-width: 0;
}

/* 字标 */
.bs-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--text-main);
  font-weight: 900;
  letter-spacing: -0.01em;
  text-decoration: none;
}

.bs-brand__mark {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  flex: 0 0 auto;
  border-radius: 13px;
  background: linear-gradient(140deg, var(--accent-cyan) 0%, #0B3B3C 78%);
  color: #03211E;
  font-family: var(--font-mono);
  font-size: 20px;
  font-weight: 800;
  box-shadow: 0 0 0 1px rgba(0, 245, 212, 0.42), 0 12px 26px -16px rgba(0, 245, 212, 0.95);
  transition: box-shadow 0.2s var(--ease), transform 0.2s var(--ease);
}

.bs-brand:hover .bs-brand__mark {
  transform: translateY(-1px);
  box-shadow: 0 0 0 4px rgba(0, 245, 212, 0.18), 0 16px 30px -16px rgba(0, 245, 212, 1);
}

.bs-brand__text {
  font-size: 19px;
  line-height: 1.05;
  white-space: nowrap;
}

.bs-brand__text small {
  display: block;
  margin-top: 3px;
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.18em;
  color: var(--text-muted);
}

/* 状态胶囊 */
.bs-chip {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 6px 12px;
  border: 1px solid var(--line-steel);
  border-radius: var(--radius-pill);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  white-space: nowrap;
}

.bs-chip--live {
  color: var(--accent-cyan);
  border-color: rgba(0, 245, 212, 0.45);
  background: rgba(0, 245, 212, 0.07);
}

.bs-chip--ver { color: var(--text-muted); }

.bs-chip__pulse {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent-cyan);
  animation: bs-pulse 2.4s ease-out infinite;
}

@keyframes bs-pulse {
  0% { box-shadow: 0 0 0 0 rgba(0, 245, 212, 0.55); }
  70% { box-shadow: 0 0 0 9px rgba(0, 245, 212, 0); }
  100% { box-shadow: 0 0 0 0 rgba(0, 245, 212, 0); }
}

/* 小屏积分榜快速入口 */
.bs-quickrank {
  display: none;
  align-items: center;
  padding: 7px 13px;
  border: 1px solid rgba(0, 245, 212, 0.35);
  border-radius: var(--radius-pill);
  background: rgba(0, 245, 212, 0.1);
  color: var(--accent-cyan);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-decoration: none;
  white-space: nowrap;
}

/* 导航 */
.bs-nav { margin-left: auto; }

.bs-nav__list {
  display: flex;
  align-items: center;
  gap: 4px;
}

.bs-nav__link {
  position: relative;
  display: block;
  padding: 9px 14px;
  border-radius: var(--radius-pill);
  color: var(--text-muted);
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  transition: color 0.18s var(--ease), background-color 0.18s var(--ease);
}

.bs-nav__link::after {
  content: "";
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: 5px;
  height: 2px;
  border-radius: 2px;
  background: var(--accent-cyan);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 0.24s var(--ease);
}

.bs-nav__link:hover {
  color: var(--text-main);
  background: rgba(255, 255, 255, 0.04);
}
.bs-nav__link:hover::after { transform: scaleX(1); }

.bs-nav__link[aria-current="page"] {
  color: var(--accent-cyan);
  background: rgba(0, 245, 212, 0.09);
}
.bs-nav__link[aria-current="page"]::after { transform: scaleX(1); }

/* 汉堡按钮 */
.bs-navtoggle {
  position: relative;
  display: none;
  width: 44px;
  height: 44px;
  flex: 0 0 auto;
  border: 1px solid var(--line-steel);
  border-radius: 14px;
  background: rgba(11, 18, 38, 0.9);
  color: var(--text-main);
  cursor: pointer;
  transition: border-color 0.18s var(--ease), color 0.18s var(--ease);
}

.bs-navtoggle__bars,
.bs-navtoggle__bars::before,
.bs-navtoggle__bars::after {
  position: absolute;
  width: 18px;
  height: 2px;
  border-radius: 2px;
  background: currentColor;
  transition: transform 0.2s var(--ease), opacity 0.2s var(--ease), background-color 0.2s var(--ease);
}

.bs-navtoggle__bars {
  left: 50%;
  top: 50%;
  margin-top: -1px;
  transform: translateX(-50%);
}

.bs-navtoggle__bars::before { content: ""; left: 0; top: -6px; }
.bs-navtoggle__bars::after { content: ""; left: 0; top: 6px; }

.bs-navtoggle[data-open="true"] {
  border-color: rgba(0, 245, 212, 0.6);
  color: var(--accent-cyan);
}

.bs-navtoggle[data-open="true"] .bs-navtoggle__bars { background: transparent; }
.bs-navtoggle[data-open="true"] .bs-navtoggle__bars::before { transform: translateY(6px) rotate(45deg); }
.bs-navtoggle[data-open="true"] .bs-navtoggle__bars::after { transform: translateY(-6px) rotate(-45deg); }

/* 滚动进度 */
.bs-progress {
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 2px;
  overflow: hidden;
  pointer-events: none;
}

.bs-progress__bar {
  display: block;
  width: 0;
  height: 100%;
  background: linear-gradient(90deg, var(--accent-cyan), var(--accent-orange));
  transition: width 0.1s linear;
}

/* ==========================================================================
   FOOTER
   ========================================================================== */
.bs-footer {
  position: relative;
  overflow: hidden;
  background: linear-gradient(180deg, #070D1D 0%, var(--bg-ink) 100%);
  border-top: 1px solid var(--line-steel);
}

.bs-footer__glow {
  position: absolute;
  inset: -140px -10% auto -10%;
  height: 380px;
  pointer-events: none;
  background:
    radial-gradient(50% 62% at 16% 0%, rgba(0, 245, 212, 0.16), transparent 72%),
    radial-gradient(46% 56% at 86% 8%, rgba(255, 90, 54, 0.14), transparent 72%);
}

.bs-footer__inner {
  position: relative;
  display: grid;
  grid-template-columns: minmax(230px, 1fr) 2.6fr;
  gap: clamp(24px, 4vw, 60px);
  padding-top: clamp(40px, 5vw, 72px);
  padding-bottom: clamp(32px, 4vw, 56px);
}

.bs-footer__brand {
  display: grid;
  gap: 16px;
  align-content: start;
}

.bs-footer__tagline {
  font-size: 14px;
  line-height: 1.6;
  color: var(--text-muted);
  max-width: 34ch;
}

.bs-footer__chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.bs-footer__cols {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: clamp(18px, 2.5vw, 34px);
}

.bs-footer__col {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 12px;
}

.bs-footer__title {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.16em;
  color: var(--text-muted);
}

.bs-footer__list {
  display: grid;
  gap: 9px;
}

.bs-footer__link {
  position: relative;
  display: inline-block;
  color: var(--text-main);
  font-size: 14px;
  text-decoration: none;
  transition: color 0.18s var(--ease);
}

.bs-footer__link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 100%;
  height: 1px;
  background: var(--accent-cyan);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 0.22s var(--ease);
}

.bs-footer__link:hover { color: var(--accent-cyan); }
.bs-footer__link:hover::after { transform: scaleX(1); }

.bs-footer__link--block { margin-top: 2px; }

.bs-footer__text {
  font-size: 13px;
  line-height: 1.6;
  color: var(--text-muted);
}

.bs-footer__meta {
  display: flex;
  flex-direction: column;
  gap: 3px;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--text-muted);
}

.bs-footer__meta b {
  font-size: 13.5px;
  font-weight: 600;
  line-height: 1.45;
  color: var(--text-main);
  overflow-wrap: anywhere;
}

.bs-footer__base {
  position: relative;
  background: rgba(11, 18, 38, 0.58);
  border-top: 1px solid var(--line-steel);
}

.bs-footer__baseinner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 22px;
  padding-top: 18px;
  padding-bottom: 18px;
  font-size: 13px;
  color: var(--text-muted);
}

.bs-footer__copy { color: var(--text-muted); }
.bs-footer__icp { font-family: var(--font-mono); letter-spacing: 0.06em; }
.bs-footer__note { color: var(--text-muted); }

.bs-footer__feed {
  margin-left: auto;
  display: inline-flex;
  align-items: center;
  padding: 8px 16px;
  border: 1px solid rgba(255, 90, 54, 0.5);
  border-radius: var(--radius-pill);
  background: rgba(255, 90, 54, 0.1);
  color: var(--accent-orange);
  font-size: 13px;
  font-weight: 700;
  text-decoration: none;
  transition: background-color 0.18s var(--ease), color 0.18s var(--ease), box-shadow 0.18s var(--ease);
}

.bs-footer__feed:hover {
  background: var(--accent-orange);
  color: #2A0A03;
  box-shadow: 0 0 0 5px rgba(255, 90, 54, 0.16);
}

/* ==========================================================================
   响应式
   ========================================================================== */
@media (max-width: 1180px) {
  .bs-grid--4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 1080px) {
  .bs-footer__inner { grid-template-columns: 1fr; }
  .bs-footer__brand { gap: 12px; }
}

@media (max-width: 900px) {
  :root { --header-h: 60px; }

  .bs-header__inner { gap: 12px; padding-top: 9px; padding-bottom: 9px; }
  .bs-brand__text { font-size: 17px; }
  .bs-brand__text small { display: none; }
  .bs-brand__mark { width: 34px; height: 34px; border-radius: 11px; font-size: 18px; }
  .bs-chip--ver { display: none; }
  .bs-quickrank { display: inline-flex; }

  .bs-navtoggle { display: grid; place-items: center; }

  .bs-nav {
    position: absolute;
    left: var(--gutter);
    right: var(--gutter);
    top: calc(100% + 10px);
    z-index: 10;
    display: none;
    margin-left: 0;
    padding: 10px;
    border: 1px solid var(--line-steel);
    border-radius: 20px;
    background: linear-gradient(180deg, #0B1226 0%, #070D1D 100%);
    box-shadow: 0 34px 64px -34px rgba(0, 0, 0, 0.95);
  }

  .bs-nav[data-open="true"] { display: block; }

  .bs-nav__list { flex-direction: column; align-items: stretch; gap: 2px; }

  .bs-nav__link {
    padding: 13px 16px;
    border-radius: 14px;
    font-size: 15px;
  }

  .bs-nav__link::after { display: none; }

  .bs-nav__link[aria-current="page"] {
    color: var(--accent-cyan);
    background: rgba(0, 245, 212, 0.1);
    box-shadow: inset 3px 0 0 var(--accent-cyan);
  }

  .bs-grid--3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .bs-footer__cols { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 22px; }
}

@media (max-width: 620px) {
  .bs-grid--2,
  .bs-grid--3,
  .bs-grid--4 { grid-template-columns: minmax(0, 1fr); }

  .bs-footer__cols { grid-template-columns: minmax(0, 1fr); }
  .bs-footer__feed { margin-left: 0; }
  .bs-footer__baseinner { gap: 10px 16px; font-size: 12.5px; }
  .bs-lead { font-size: 15px; }
  .bs-media--wide { aspect-ratio: 16 / 9; }
}

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

  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }

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

  .bs-btn:hover,
  .bs-card:hover,
  .bs-brand:hover .bs-brand__mark { transform: none; }
}