/* ==========================================================================
   半岛赛事 · 共享样式表  /assets/site.css
   深海蓝 + 沙岸米白，纸张叠层与印刷边框，纵向叙事长卷骨架
   ========================================================================== */

/* ---------- 01 变量 ---------- */
:root {
  --deep: #0B2A45;
  --night: #061726;
  --strait: #0E4A4F;
  --indigo: #2E2A5C;
  --sand: #F4EEE3;
  --sand-2: #E4D9C6;
  --paper: #FBF7F0;
  --orange: #FF7A29;
  --grass: #2F8F5B;
  --wine: #7A2233;
  --ink: #1A1F24;
  --slate: #66788A;
  --mist: #A9D6E5;

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

  --wrap: 1240px;
  --gutter: clamp(20px, 5vw, 64px);
  --gap: clamp(16px, 2vw, 28px);
  --pill: 999px;
  --card-radius: 4px;
  --hair: rgba(26, 31, 36, 0.16);
  --hair-light: rgba(244, 238, 227, 0.22);
  --paper-shadow: 0 20px 44px -36px rgba(11, 42, 69, 0.72);
  --lift-shadow: 0 26px 60px -30px rgba(6, 23, 38, 0.72);
}

/* ---------- 02 reset ---------- */
*,
*::before,
*::after { box-sizing: border-box; }

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

body {
  margin: 0;
  background: var(--sand);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.75;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

h1, h2, h3, h4, h5, h6 {
  margin: 0;
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.012em;
}

p { margin: 0 0 1em; }
p:last-child { margin-bottom: 0; }

ul, ol { margin: 0 0 1em; padding-left: 1.25em; }

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

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

button { font: inherit; color: inherit; }

hr { border: 0; }

:focus-visible {
  outline: 2px solid var(--orange);
  outline-offset: 2px;
  border-radius: 2px;
}

.bd-band :focus-visible,
.bd-footer :focus-visible,
.bd-header :focus-visible,
.bd-card--deep :focus-visible {
  outline-color: var(--mist);
}

/* ---------- 03 排版系统 ---------- */
.bd-display {
  margin: 0;
  font-size: clamp(48px, 9vw, 132px);
  font-weight: 250;
  line-height: 0.94;
  letter-spacing: -0.02em;
}

.bd-h2 {
  margin: 0;
  font-size: clamp(28px, 4vw, 56px);
  font-weight: 700;
  line-height: 1.08;
}

.bd-h3 {
  margin: 0;
  font-size: clamp(20px, 2vw, 24px);
  font-weight: 600;
  line-height: 1.32;
}

.bd-index {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--slate);
}

.bd-band .bd-index,
.bd-card--deep .bd-index,
.bd-footer .bd-index { color: var(--mist); }

.bd-num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-feature-settings: "tnum" 1;
  letter-spacing: 0.01em;
}

.bd-prose {
  max-width: 42em;
  font-size: 1.0625rem;
  line-height: 1.78;
}

.bd-prose > p { margin: 0 0 1.15em; }
.bd-prose h2 { margin: 1.6em 0 0.6em; font-size: clamp(24px, 2.6vw, 34px); }
.bd-prose h3 { margin: 1.4em 0 0.5em; font-size: clamp(19px, 1.8vw, 22px); font-weight: 600; }
.bd-prose ul, .bd-prose ol { margin: 0 0 1.2em; }
.bd-prose li { margin-bottom: 0.4em; }
.bd-prose strong { font-weight: 700; }

.bd-rule {
  height: 1px;
  border: 0;
  margin: 0;
  background: linear-gradient(90deg, rgba(26, 31, 36, 0.28), rgba(26, 31, 36, 0));
}

.bd-band .bd-rule,
.bd-card--deep .bd-rule {
  background: linear-gradient(90deg, rgba(244, 238, 227, 0.4), rgba(244, 238, 227, 0));
}

/* ---------- 04 布局工具 ---------- */
.bd-wrap {
  width: min(var(--wrap), 100% - var(--gutter) * 2);
  margin-inline: auto;
}

.bd-section {
  width: min(var(--wrap), 100% - var(--gutter) * 2);
  margin-inline: auto;
  padding-block: clamp(40px, 6vw, 84px);
}

.bd-grid {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: var(--gap);
}

.bd-rail { grid-column: 1 / 4; }
.bd-body { grid-column: 4 / 13; }

.bd-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
}

/* ---------- 05 色彩分区：全宽色带 ---------- */
.bd-band {
  background: var(--deep);
  color: var(--sand);
  padding-block: clamp(40px, 6vw, 84px);
}

.bd-band--strait { background: var(--strait); }
.bd-band--indigo { background: var(--indigo); }
.bd-band--sand { background: var(--sand-2); color: var(--ink); }
.bd-band--night { background: var(--night); }

.bd-band a { color: inherit; }

/* ---------- 06 按钮 ---------- */
.bd-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 20px;
  border: 1px solid transparent;
  border-radius: var(--pill);
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 600;
  line-height: 1;
  text-decoration: none;
  cursor: pointer;
  transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.bd-btn--signal {
  background: var(--orange);
  border-color: var(--orange);
  color: var(--night);
}
.bd-btn--signal:hover { background: #ff9455; border-color: #ff9455; }

.bd-btn--quiet {
  background: rgba(251, 247, 240, 0.94);
  border-color: var(--hair);
  color: var(--ink);
}
.bd-btn--quiet:hover { background: #ffffff; border-color: rgba(26, 31, 36, 0.3); }

.bd-btn--deep {
  background: var(--deep);
  border-color: var(--deep);
  color: var(--sand);
}
.bd-btn--deep:hover { background: var(--strait); border-color: var(--strait); }

.bd-btn--line {
  background: transparent;
  border-color: var(--hair-light);
  color: var(--sand);
}
.bd-btn--line:hover {
  background: var(--orange);
  border-color: var(--orange);
  color: var(--night);
}

/* ---------- 07 卡片 / 标签 / 展开组 ---------- */
.bd-card {
  position: relative;
  padding: clamp(18px, 2.4vw, 30px);
  background: var(--paper);
  border: 1px solid var(--hair);
  border-radius: var(--card-radius);
  box-shadow: var(--paper-shadow);
}

.bd-card--stack {
  box-shadow: 7px 7px 0 var(--sand-2), var(--paper-shadow);
}

.bd-card--deep {
  background: var(--deep);
  border-color: rgba(244, 238, 227, 0.2);
  color: var(--sand);
}

.bd-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border: 1px solid var(--hair);
  border-radius: 2px;
  background: var(--sand-2);
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  line-height: 1.6;
}

.bd-tag--signal { background: var(--orange); border-color: var(--orange); color: var(--night); }
.bd-tag--grass { background: var(--grass); border-color: var(--grass); color: #ffffff; }
.bd-tag--wine { background: var(--wine); border-color: var(--wine); color: #ffffff; }
.bd-tag--ghost {
  background: transparent;
  border-color: rgba(169, 214, 229, 0.42);
  color: var(--mist);
}

.bd-disclosure {
  background: var(--paper);
  border: 1px solid var(--hair);
  border-radius: var(--card-radius);
}

.bd-disclosure + .bd-disclosure { margin-top: 10px; }

.bd-disclosure > summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 15px 18px;
  font-size: 1.0625rem;
  font-weight: 600;
  cursor: pointer;
  list-style: none;
}

.bd-disclosure > summary::-webkit-details-marker { display: none; }

.bd-disclosure > summary::after {
  content: "＋";
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 15px;
  color: var(--orange);
}

.bd-disclosure[open] > summary::after { content: "－"; }

.bd-disclosure__body {
  padding: 0 18px 18px;
  color: var(--ink);
  line-height: 1.75;
}

/* ---------- 08 面包屑 ---------- */
.bd-crumbs {
  padding-block: clamp(18px, 2.4vw, 28px) 0;
}

.bd-crumbs ol {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.bd-crumbs li {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.12em;
  color: var(--slate);
}

.bd-crumbs li + li::before {
  content: "/";
  margin-right: 8px;
  color: rgba(102, 120, 138, 0.55);
}

.bd-crumbs a {
  color: var(--slate);
  text-decoration: none;
  border-bottom: 1px solid rgba(102, 120, 138, 0.42);
}
.bd-crumbs a:hover { color: var(--deep); border-bottom-color: var(--orange); }

/* ---------- 09 图片容器（供页面放置图片） ---------- */
.bd-figure {
  position: relative;
  margin: 0;
  overflow: hidden;
  background: var(--sand-2);
  border: 1px solid var(--hair);
  border-radius: 3px;
  box-shadow: 0 28px 60px -46px rgba(11, 42, 69, 0.85);
}

.bd-figure--panorama { aspect-ratio: 21 / 9; }
.bd-figure--wide { aspect-ratio: 16 / 9; }
.bd-figure--square { aspect-ratio: 1 / 1; }
.bd-figure--portrait { aspect-ratio: 4 / 5; }
.bd-figure--tall { aspect-ratio: 3 / 4; }

.bd-figure > img,
.bd-figure > picture {
  position: absolute;
  inset: 0;
  display: block;
  width: 100%;
  height: 100%;
}

.bd-figure > img,
.bd-figure > picture > img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.bd-figure__cap {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 26px 16px 12px;
  background: linear-gradient(to bottom, rgba(6, 23, 38, 0), rgba(6, 23, 38, 0.86));
  color: var(--sand);
  font-size: 12.5px;
  line-height: 1.6;
  letter-spacing: 0.02em;
}

/* ---------- 10 装饰底纹 ---------- */
.bd-halftone {
  background-image: radial-gradient(rgba(26, 31, 36, 0.18) 1px, transparent 1.2px);
  background-size: 6px 6px;
}

.bd-chartgrid {
  background-image:
    linear-gradient(rgba(169, 214, 229, 0.34) 1px, transparent 1px),
    linear-gradient(90deg, rgba(169, 214, 229, 0.34) 1px, transparent 1px);
  background-size: clamp(48px, 7vw, 88px) clamp(48px, 7vw, 88px);
}

/* ---------- 11 头部：悬浮胶囊导航 ---------- */
.bd-header {
  position: sticky;
  top: 0;
  z-index: 90;
  padding: clamp(12px, 1.6vw, 18px) var(--gutter);
  transition: padding 0.26s ease;
}

.bd-header::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  opacity: 0;
  pointer-events: none;
  background: linear-gradient(to bottom, rgba(244, 238, 227, 0.96) 58%, rgba(244, 238, 227, 0));
  transition: opacity 0.26s ease;
}

.bd-header[data-compact]::before { opacity: 1; }
.bd-header[data-compact] { padding-top: 10px; padding-bottom: 10px; }

.bd-skiplink {
  position: absolute;
  left: var(--gutter);
  top: -140px;
  z-index: 200;
  padding: 11px 20px;
  border-radius: var(--pill);
  background: var(--orange);
  color: var(--night);
  font-size: 13px;
  font-weight: 700;
  text-decoration: none;
  transition: top 0.18s ease;
}

.bd-skiplink:focus,
.bd-skiplink:focus-visible { top: 10px; }

.bd-header__shell {
  position: relative;
  z-index: 1;
  width: min(100%, var(--wrap));
  margin-inline: auto;
  display: flex;
  align-items: center;
  gap: clamp(10px, 1.5vw, 22px);
}

/* 品牌浮岛 */
.bd-brand {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 7px 18px 7px 7px;
  border-radius: var(--pill);
  background: var(--deep);
  color: var(--sand);
  text-decoration: none;
  box-shadow: 0 16px 34px -22px rgba(6, 23, 38, 0.94);
  transition: padding 0.24s ease;
}

.bd-brand__mark {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: var(--orange);
  color: var(--night);
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 700;
  line-height: 1;
  transition: width 0.24s ease, height 0.24s ease;
}

.bd-brand__text {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}

.bd-brand__name {
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.bd-brand__line {
  font-size: 10px;
  letter-spacing: 0.16em;
  color: var(--mist);
}

/* 栏目胶囊 */
.bd-nav {
  flex: 0 1 auto;
  margin-inline: auto;
  display: flex;
  align-items: center;
  padding: 5px;
  border: 1px solid var(--hair);
  border-radius: var(--pill);
  background: rgba(251, 247, 240, 0.94);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.bd-nav__list {
  display: flex;
  align-items: center;
  gap: 2px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.bd-nav__link {
  display: block;
  padding: 9px 15px;
  border-radius: var(--pill);
  color: var(--ink);
  font-size: 14px;
  line-height: 1.2;
  white-space: nowrap;
  text-decoration: none;
  transition: background-color 0.2s ease, color 0.2s ease;
}

.bd-nav__link:hover { background: var(--sand-2); }

.bd-nav__link[aria-current="page"] {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  background: var(--deep);
  color: var(--sand);
}

.bd-nav__link[aria-current="page"]:hover {
  background: var(--deep);
  color: var(--sand);
}

.bd-nav__link[aria-current="page"]::before {
  content: "";
  flex: 0 0 auto;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--orange);
}

.bd-nav__smallprint {
  display: none;
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--mist);
}

/* 右侧工具区 */
.bd-header__tools {
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  gap: 8px;
}

/* 移动端按钮 */
.bd-burger {
  display: none;
  align-items: center;
  gap: 10px;
  margin-left: auto;
  padding: 11px 17px;
  border: 1px solid rgba(244, 238, 227, 0.24);
  border-radius: var(--pill);
  background: var(--deep);
  color: var(--sand);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
}

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

.bd-burger__lines span {
  display: block;
  height: 2px;
  border-radius: 2px;
  background: var(--orange);
  transition: transform 0.22s ease;
}

.bd-header[data-open] .bd-burger__lines span:first-child { transform: translateY(3px) rotate(45deg); }
.bd-header[data-open] .bd-burger__lines span:last-child { transform: translateY(-3px) rotate(-45deg); }

.bd-burger__text { letter-spacing: 0.1em; }

/* 头部压缩态 */
.bd-header[data-compact] .bd-brand { padding: 5px 14px 5px 5px; }
.bd-header[data-compact] .bd-brand__mark { width: 28px; height: 28px; font-size: 12px; }
.bd-header[data-compact] .bd-brand__line { display: none; }
.bd-header[data-compact] .bd-nav__link { padding: 7px 12px; font-size: 13px; }
.bd-header[data-compact] .bd-btn { padding: 10px 16px; font-size: 13px; }

/* ---------- 12 页脚 ---------- */
.bd-footer {
  position: relative;
  background: var(--deep);
  color: var(--sand);
}

.bd-footer::before {
  content: "";
  display: block;
  height: 6px;
  background: linear-gradient(
    90deg,
    var(--strait) 0 26%,
    var(--indigo) 26% 48%,
    var(--orange) 48% 58%,
    var(--grass) 58% 76%,
    var(--wine) 76% 86%,
    var(--sand-2) 86% 100%
  );
}

.bd-footer a { color: inherit; }

.bd-footer__top {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 1.9fr);
  gap: clamp(32px, 5vw, 72px);
  padding-block: clamp(48px, 7vw, 88px) clamp(36px, 5vw, 60px);
}

.bd-footer__brand { min-width: 0; }

.bd-footer__wordmark {
  margin: 12px 0 0;
  font-size: clamp(34px, 5vw, 54px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.02em;
}

.bd-footer__tag {
  margin: 14px 0 0;
  max-width: 26em;
  font-size: 14px;
  line-height: 1.75;
  color: var(--mist);
}

.bd-footer__cta { margin-top: 22px; }

.bd-footer__cols {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(20px, 3vw, 40px);
}

.bd-footer__col { min-width: 0; }

.bd-footer__coltitle {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--mist);
}

.bd-footer__col ul {
  display: grid;
  gap: 9px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.bd-footer__col a {
  font-size: 14px;
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.18s ease, color 0.18s ease;
}

.bd-footer__col a:hover {
  color: #ffffff;
  border-bottom-color: var(--orange);
}

.bd-footer__col p {
  margin: 0 0 10px;
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--sand-2);
  word-break: break-word;
}

.bd-footer__legal {
  background: var(--night);
  border-top: 1px solid rgba(244, 238, 227, 0.1);
  padding-block: clamp(20px, 3vw, 32px);
}

.bd-footer__note {
  margin: 0 0 14px;
  font-size: 12.5px;
  line-height: 1.7;
  color: rgba(169, 214, 229, 0.9);
}

.bd-footer__legal-inner {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 32px;
  justify-content: space-between;
  align-items: baseline;
}

.bd-footer__legal-line {
  margin: 0;
  font-size: 12.5px;
  line-height: 1.7;
  color: rgba(244, 238, 227, 0.74);
}

/* ---------- 13 滚动进度与返回顶部 ---------- */
.bd-progress {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 120;
  width: 100%;
  height: 3px;
  transform: scaleX(0);
  transform-origin: 0 50%;
  background: linear-gradient(90deg, var(--strait), var(--grass), var(--orange));
  pointer-events: none;
}

.bd-top {
  position: fixed;
  right: clamp(16px, 3vw, 34px);
  bottom: clamp(16px, 3vw, 34px);
  z-index: 110;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 18px;
  border: 1px solid rgba(244, 238, 227, 0.28);
  border-radius: var(--pill);
  background: var(--deep);
  color: var(--sand);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: opacity 0.22s ease, transform 0.22s ease, visibility 0.22s ease;
}

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

.bd-top:hover { background: var(--strait); }

.bd-top__sign { font-family: var(--font-sans); font-size: 13px; line-height: 1; }

/* ---------- 14 显现动效 ---------- */
.bd-js [data-reveal] {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

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

/* ---------- 15 响应式 ---------- */
@media (max-width: 1280px) {
  .bd-nav__link { padding: 8px 12px; font-size: 13px; }
}

@media (max-width: 1180px) {
  .bd-header__tools .bd-btn--quiet { display: none; }
}

@media (max-width: 1079px) {
  .bd-header__tools { display: none; }

  .bd-burger { display: inline-flex; }

  .bd-nav {
    position: absolute;
    top: calc(100% + 10px);
    left: 0;
    right: 0;
    display: block;
    margin: 0;
    padding: 14px;
    border-radius: 18px;
    background: var(--deep);
    border-color: rgba(244, 238, 227, 0.18);
    box-shadow: var(--lift-shadow);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: opacity 0.22s ease, transform 0.22s ease, visibility 0.22s ease;
  }

  .bd-header[data-open] .bd-nav {
    opacity: 1;
    visibility: visible;
    transform: none;
  }

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

  .bd-nav__link {
    padding: 13px 15px;
    border-radius: 10px;
    color: var(--sand);
    font-size: 15px;
  }

  .bd-nav__link:hover { background: rgba(244, 238, 227, 0.1); }

  .bd-nav__link[aria-current="page"] {
    background: var(--orange);
    color: var(--night);
  }

  .bd-nav__link[aria-current="page"]:hover { background: var(--orange); color: var(--night); }
  .bd-nav__link[aria-current="page"]::before { background: var(--night); }

  .bd-nav__smallprint {
    display: block;
    margin-top: 14px;
    padding: 12px 15px 4px;
    border-top: 1px solid rgba(244, 238, 227, 0.16);
  }
}

@media (max-width: 980px) {
  .bd-rail,
  .bd-body { grid-column: 1 / -1; }
}

@media (max-width: 900px) {
  .bd-footer__top { grid-template-columns: 1fr; }
  .bd-footer__cols { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 620px) {
  .bd-footer__cols { grid-template-columns: 1fr; }
  .bd-footer__legal-inner { flex-direction: column; gap: 8px; }
  .bd-btn { padding: 11px 17px; }
  .bd-brand__line { display: none; }
}

@media (max-width: 420px) {
  .bd-burger__text { display: none; }
}

/* ---------- 16 降低动效偏好 ---------- */
@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;
  }

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

  .bd-top { transform: none; }
}