/* ============================================================
   多宝体育 — 共享站点样式 /assets/site.css
   设计语言：深空数据舱 × 赛场读秒，非对称编辑部节奏
   ============================================================ */

/* ---------- 1. 重置 ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; text-size-adjust: 100%; scroll-behavior: smooth; }
body, h1, h2, h3, h4, h5, h6, p, figure, blockquote, dl, dd { margin: 0; }
ul, ol { margin: 0; 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; padding: 0; cursor: pointer; }
a { color: inherit; text-decoration: none; }
table { border-collapse: collapse; width: 100%; }
hr { border: 0; margin: 0; }

/* ---------- 2. 设计变量 ---------- */
:root {
  --db-space: #071A2F;
  --db-midnight: #0D2742;
  --db-cabin: #123A5C;
  --db-green: #39FF88;
  --db-teal: #17D4A0;
  --db-orange: #FF7A1A;
  --db-red: #FF3D5A;
  --db-white: #E8F4FF;
  --db-mist: #8FA9C4;
  --db-gold: #FFB547;

  --db-line: rgba(143, 169, 196, 0.22);
  --db-line-soft: rgba(143, 169, 196, 0.12);
  --db-line-green: rgba(57, 255, 136, 0.45);

  --db-r-s: 8px;
  --db-r-m: 16px;
  --db-r-l: 28px;
  --db-r-pill: 999px;

  --db-sans: "PingFang SC", "Noto Sans SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, -apple-system, "Segoe UI", sans-serif;
  --db-mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", "Courier New", monospace;

  --db-max: 1320px;
  --db-gutter: clamp(16px, 4vw, 48px);
  --db-head-h: 76px;
  --db-ease: cubic-bezier(0.22, 0.61, 0.36, 1);
}

/* ---------- 3. 基底与色彩节奏 ---------- */
body {
  min-height: 100vh;
  background-color: var(--db-space);
  background-image:
    radial-gradient(900px 520px at 84% -6%, rgba(23, 212, 160, 0.16), transparent 68%),
    radial-gradient(760px 480px at 2% 10%, rgba(255, 122, 26, 0.10), transparent 70%),
    linear-gradient(rgba(57, 255, 136, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(57, 255, 136, 0.045) 1px, transparent 1px);
  background-size: auto, auto, 72px 72px, 72px 72px;
  background-attachment: fixed, fixed, scroll, scroll;
  color: var(--db-white);
  font-family: var(--db-sans);
  font-size: 16px;
  line-height: 1.68;
  font-weight: 450;
  letter-spacing: 0.005em;
}

::selection { background: var(--db-green); color: #04121F; }

:focus-visible {
  outline: 2px solid var(--db-green);
  outline-offset: 2px;
  border-radius: 4px;
}

/* ---------- 4. 排版 ---------- */
.db-display {
  font-size: clamp(44px, 8.4vw, 112px);
  line-height: 0.94;
  font-weight: 900;
  letter-spacing: -0.035em;
  transform: skewX(-2.5deg);
  transform-origin: 0 100%;
}
.db-h1 { font-size: clamp(34px, 5.2vw, 62px); line-height: 1.06; font-weight: 850; letter-spacing: -0.022em; }
.db-h2 { font-size: clamp(26px, 3.4vw, 40px); line-height: 1.16; font-weight: 800; letter-spacing: -0.016em; }
.db-h3 { font-size: clamp(19px, 2vw, 26px); line-height: 1.28; font-weight: 750; letter-spacing: -0.01em; }
.db-lede { font-size: clamp(16px, 1.5vw, 19px); line-height: 1.76; color: rgba(232, 244, 255, 0.82); }

.db-label {
  display: inline-block;
  font-family: var(--db-mono);
  font-size: 11.5px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--db-mist);
}
.db-note {
  font-family: var(--db-mono);
  font-size: 13px;
  line-height: 1.76;
  color: var(--db-mist);
  padding-left: 14px;
  border-left: 1px solid var(--db-line);
}
.db-mono { font-family: var(--db-mono); font-variant-numeric: tabular-nums; letter-spacing: 0.01em; }
.db-num { font-family: var(--db-mono); font-variant-numeric: tabular-nums; color: var(--db-green); font-weight: 700; }
.db-num--hot { color: var(--db-orange); }

/* ---------- 5. 容器 / 分区 / 网格 ---------- */
.db-container { width: 100%; max-width: var(--db-max); margin-inline: auto; padding-inline: var(--db-gutter); }
.db-container--narrow { max-width: 860px; }
.db-container--wide { max-width: 1560px; }

.db-section { padding-block: clamp(48px, 7vw, 104px); position: relative; }
.db-section--mid { background: linear-gradient(180deg, rgba(13, 39, 66, 0.72), rgba(13, 39, 66, 0.35)); }
.db-section--cabin { background: linear-gradient(160deg, rgba(18, 58, 92, 0.62), rgba(7, 26, 47, 0.9)); }

.db-grid { display: grid; gap: clamp(16px, 2.4vw, 28px); }
.db-grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.db-grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.db-grid--aside { grid-template-columns: minmax(0, 1fr) minmax(200px, 25%); }
.db-grid--aside-start { grid-template-columns: minmax(190px, 23%) minmax(0, 1fr); }

.db-divider { height: 1px; background: linear-gradient(90deg, transparent, var(--db-line), transparent); }

/* ---------- 6. 基础组件 ---------- */
.db-card {
  position: relative;
  padding: clamp(18px, 2.2vw, 28px);
  border-radius: var(--db-r-m);
  border: 1px solid var(--db-line);
  background: linear-gradient(160deg, rgba(18, 58, 92, 0.82), rgba(13, 39, 66, 0.7));
  overflow: hidden;
  transition: border-color 0.22s var(--db-ease), transform 0.22s var(--db-ease), background-color 0.22s var(--db-ease);
}
.db-card::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 3px;
  background: linear-gradient(180deg, var(--db-green), rgba(23, 212, 160, 0));
  opacity: 0.7;
}
.db-card:hover { border-color: var(--db-line-green); transform: translateY(-2px); }
.db-card__title { font-size: clamp(19px, 2vw, 26px); font-weight: 780; line-height: 1.3; }
.db-card__body { margin-top: 10px; font-size: 15.5px; color: rgba(232, 244, 255, 0.78); }

.db-tag {
  display: inline-flex;
  align-items: center;
  height: 24px;
  padding-inline: 10px;
  border-radius: var(--db-r-pill);
  border: 1px solid rgba(57, 255, 136, 0.36);
  background: rgba(57, 255, 136, 0.1);
  color: var(--db-green);
  font-family: var(--db-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
}
.db-tag--gold { color: var(--db-gold); border-color: rgba(255, 181, 71, 0.42); background: rgba(255, 181, 71, 0.12); }
.db-tag--hot { color: var(--db-orange); border-color: rgba(255, 122, 26, 0.45); background: rgba(255, 122, 26, 0.12); }
.db-tag--muted { color: var(--db-mist); border-color: var(--db-line); background: rgba(143, 169, 196, 0.08); }

.db-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  height: 40px;
  padding-inline: 18px;
  border-radius: var(--db-r-pill);
  border: 1px solid transparent;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.01em;
  transition: transform 0.2s var(--db-ease), box-shadow 0.2s var(--db-ease), color 0.2s var(--db-ease), border-color 0.2s var(--db-ease), background-color 0.2s var(--db-ease);
}
.db-btn--capsule {
  background: linear-gradient(120deg, var(--db-green), var(--db-teal));
  color: #04121F;
  box-shadow: 0 12px 30px -18px rgba(57, 255, 136, 0.95);
}
.db-btn--capsule:hover { transform: translateY(-1px); box-shadow: 0 16px 34px -14px rgba(57, 255, 136, 1); }
.db-btn--ghost {
  background: rgba(18, 58, 92, 0.6);
  border-color: var(--db-line);
  color: var(--db-white);
}
.db-btn--ghost:hover { border-color: var(--db-line-green); color: var(--db-green); }

.db-copy {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  height: 34px;
  padding-inline: 14px;
  border-radius: var(--db-r-pill);
  border: 1px dashed rgba(143, 169, 196, 0.42);
  background: rgba(13, 39, 66, 0.7);
  color: var(--db-mist);
  font-family: var(--db-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  transition: color 0.2s var(--db-ease), border-color 0.2s var(--db-ease), background-color 0.2s var(--db-ease);
}
.db-copy:hover { color: var(--db-green); border-color: var(--db-line-green); border-style: solid; }
.db-copy[data-copied="true"] { color: #04121F; background: var(--db-green); border-color: var(--db-green); border-style: solid; }
.db-copy[data-copied="false"] { color: var(--db-red); border-color: var(--db-red); }
.db-copy__label { white-space: nowrap; }
.db-copy--block {
  width: 100%;
  height: auto;
  min-height: 36px;
  justify-content: flex-start;
  padding: 9px 13px;
  border-radius: 12px;
  text-align: left;
  line-height: 1.5;
}
.db-copy--block .db-copy__label { white-space: normal; overflow-wrap: anywhere; }

/* 面包屑 */
.db-breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-bottom: 18px;
  font-family: var(--db-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--db-mist);
}
.db-breadcrumb__link { color: var(--db-mist); border-bottom: 1px solid transparent; transition: color 0.18s var(--db-ease), border-color 0.18s var(--db-ease); }
.db-breadcrumb__link:hover { color: var(--db-green); border-bottom-color: var(--db-green); }
.db-breadcrumb__sep { color: rgba(143, 169, 196, 0.5); }
.db-breadcrumb__current { color: var(--db-white); }

/* 图片容器基础规则（页面阶段放入 <img class="db-media__img">） */
.db-media {
  position: relative;
  display: block;
  width: 100%;
  border-radius: var(--db-r-m);
  border: 1px solid var(--db-line);
  overflow: hidden;
  background: linear-gradient(150deg, var(--db-cabin), var(--db-midnight));
}
.db-media__frame {
  position: relative;
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  background-color: #0B2035;
  background-image:
    radial-gradient(120% 80% at 18% 0%, rgba(23, 212, 160, 0.22), transparent 62%),
    radial-gradient(90% 70% at 92% 100%, rgba(255, 122, 26, 0.18), transparent 64%),
    repeating-linear-gradient(135deg, rgba(143, 169, 196, 0.1) 0 2px, transparent 2px 14px),
    linear-gradient(180deg, transparent 58%, rgba(7, 26, 47, 0.85));
}
.db-media--wide .db-media__frame { aspect-ratio: 21 / 9; }
.db-media--tall .db-media__frame { aspect-ratio: 4 / 5; }
.db-media__img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.db-media__caption {
  margin-top: 10px;
  font-family: var(--db-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--db-mist);
}

/* ---------- 7. 头部 ---------- */
.db-header {
  position: sticky;
  top: 0;
  z-index: 60;
  background: linear-gradient(180deg, rgba(7, 26, 47, 0.97), rgba(7, 26, 47, 0.84));
  backdrop-filter: blur(16px) saturate(150%);
  -webkit-backdrop-filter: blur(16px) saturate(150%);
  border-bottom: 1px solid var(--db-line);
}
.db-header__inner {
  position: relative;
  display: flex;
  align-items: center;
  gap: clamp(10px, 1.6vw, 24px);
  min-height: var(--db-head-h);
  max-width: var(--db-max);
  margin-inline: auto;
  padding-inline: var(--db-gutter);
}

.db-skip {
  position: fixed;
  top: 8px;
  left: 8px;
  z-index: 200;
  padding: 10px 16px;
  border-radius: 10px;
  background: var(--db-green);
  color: #04121F;
  font-size: 14px;
  font-weight: 700;
  transform: translateY(-180%);
  transition: transform 0.2s var(--db-ease);
}
.db-skip:focus { transform: translateY(0); }

.db-brand { display: inline-flex; align-items: center; gap: 12px; flex: 0 0 auto; }
.db-brand__mark {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border-radius: 12px;
  background: linear-gradient(140deg, var(--db-green), var(--db-teal));
  color: #04121F;
  font-family: var(--db-mono);
  font-size: 18px;
  font-weight: 700;
  transform: skewX(-6deg);
  box-shadow: 0 0 0 1px rgba(57, 255, 136, 0.5), 0 12px 28px -16px rgba(57, 255, 136, 0.9);
}
.db-brand__text { display: flex; flex-direction: column; line-height: 1.12; }
.db-brand__name { font-size: 19px; font-weight: 800; letter-spacing: 0.02em; }
.db-brand__tag { font-family: var(--db-mono); font-size: 10.5px; letter-spacing: 0.2em; color: var(--db-mist); }

.db-ticker {
  display: flex;
  align-items: center;
  gap: 12px;
  flex: 1 1 auto;
  min-width: 0;
  max-width: 520px;
  height: 38px;
  padding-inline: 14px;
  border-radius: var(--db-r-pill);
  border: 1px dashed rgba(143, 169, 196, 0.3);
  background: linear-gradient(90deg, rgba(18, 58, 92, 0.55), rgba(13, 39, 66, 0.22));
  overflow: hidden;
}
.db-ticker__label { font-family: var(--db-mono); font-size: 11px; letter-spacing: 0.16em; color: var(--db-mist); white-space: nowrap; }
.db-ticker__value { font-family: var(--db-mono); font-variant-numeric: tabular-nums; font-size: 13px; font-weight: 700; color: var(--db-green); white-space: nowrap; }
.db-ticker__track {
  flex: 1 1 60px;
  min-width: 36px;
  height: 4px;
  border-radius: var(--db-r-pill);
  background: rgba(143, 169, 196, 0.18);
  overflow: hidden;
}
.db-ticker__fill { display: block; height: 100%; width: 62%; border-radius: inherit; background: linear-gradient(90deg, var(--db-orange), var(--db-green)); }

.db-nav {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-left: auto;
  flex: 0 0 auto;
}
.db-nav__list { display: flex; align-items: center; gap: 4px; }
.db-nav__link {
  display: inline-flex;
  align-items: center;
  height: 36px;
  padding-inline: 12px;
  border-radius: var(--db-r-pill);
  border: 1px solid transparent;
  color: var(--db-mist);
  font-size: 13.5px;
  font-weight: 600;
  white-space: nowrap;
  transition: color 0.18s var(--db-ease), background-color 0.18s var(--db-ease), border-color 0.18s var(--db-ease);
}
.db-nav__link:hover { color: var(--db-white); background: rgba(18, 58, 92, 0.78); border-color: rgba(57, 255, 136, 0.34); }
.db-nav__link[aria-current="page"] {
  color: #04121F;
  background: linear-gradient(120deg, var(--db-green), var(--db-teal));
  border-color: transparent;
  box-shadow: 0 10px 26px -16px rgba(57, 255, 136, 0.95);
}
.db-nav__aside { display: flex; align-items: center; gap: 10px; margin-left: 6px; }

.db-navtoggle {
  display: none;
  align-items: center;
  gap: 9px;
  height: 40px;
  padding-inline: 14px;
  margin-left: auto;
  border-radius: var(--db-r-pill);
  border: 1px solid var(--db-line);
  background: rgba(13, 39, 66, 0.75);
  color: var(--db-white);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
  transition: border-color 0.2s var(--db-ease), color 0.2s var(--db-ease);
}
.db-navtoggle:hover { border-color: var(--db-line-green); color: var(--db-green); }
.db-navtoggle__bars { display: flex; flex-direction: column; gap: 4px; width: 18px; }
.db-navtoggle__bars span {
  display: block;
  height: 2px;
  border-radius: 2px;
  background: currentColor;
  transition: transform 0.22s var(--db-ease), opacity 0.22s var(--db-ease);
}
.db-navtoggle__bars span:nth-child(2) { width: 72%; }
.db-navtoggle[aria-expanded="true"] .db-navtoggle__bars span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.db-navtoggle[aria-expanded="true"] .db-navtoggle__bars span:nth-child(2) { opacity: 0; }
.db-navtoggle[aria-expanded="true"] .db-navtoggle__bars span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

.db-progress { position: absolute; left: 0; right: 0; bottom: -1px; height: 2px; background: rgba(143, 169, 196, 0.14); }
.db-progress__bar {
  display: block;
  height: 100%;
  width: 100%;
  transform: scaleX(0);
  transform-origin: 0 50%;
  background: linear-gradient(90deg, var(--db-orange), var(--db-gold), var(--db-green));
}

/* ---------- 8. 页脚 ---------- */
.db-footer {
  position: relative;
  overflow: hidden;
  margin-top: clamp(48px, 8vw, 120px);
  border-top: 1px solid var(--db-line);
  background: linear-gradient(180deg, rgba(7, 26, 47, 0.6), var(--db-space) 45%);
}
.db-footer__glow {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    radial-gradient(58% 120% at 86% 2%, rgba(23, 212, 160, 0.18), transparent 62%),
    radial-gradient(52% 110% at 6% 100%, rgba(255, 122, 26, 0.13), transparent 64%),
    radial-gradient(40% 90% at 46% 120%, rgba(18, 58, 92, 0.7), transparent 70%),
    linear-gradient(rgba(57, 255, 136, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(57, 255, 136, 0.05) 1px, transparent 1px);
  background-size: auto, auto, auto, 56px 56px, 56px 56px;
  -webkit-mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.95), transparent 88%);
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.95), transparent 88%);
}
.db-footer__inner {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr) minmax(0, 1fr) minmax(0, 1.35fr);
  gap: clamp(24px, 3vw, 44px);
  max-width: var(--db-max);
  margin-inline: auto;
  padding: clamp(40px, 6vw, 76px) var(--db-gutter) clamp(28px, 4vw, 46px);
}
.db-footer__intro { display: flex; flex-direction: column; gap: 14px; align-items: flex-start; }
.db-brand--footer .db-brand__name { font-size: 21px; }
.db-footer__pitch { font-size: 17px; font-weight: 700; letter-spacing: -0.01em; color: var(--db-white); }
.db-footer__meta { font-family: var(--db-mono); font-size: 12px; letter-spacing: 0.1em; color: var(--db-mist); }

.db-footer__col { display: flex; flex-direction: column; min-width: 0; }
.db-footer__title {
  margin-bottom: 14px;
  font-family: var(--db-mono);
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: 0.2em;
  color: var(--db-mist);
}
.db-footer__title::before { content: "▍"; color: var(--db-green); margin-right: 6px; }
.db-footer__list { display: flex; flex-direction: column; gap: 9px; }
.db-footer__link {
  display: inline-block;
  font-size: 14.5px;
  color: rgba(232, 244, 255, 0.86);
  border-bottom: 1px solid transparent;
  transition: color 0.18s var(--db-ease), border-color 0.18s var(--db-ease), transform 0.18s var(--db-ease);
}
.db-footer__link:hover { color: var(--db-green); border-bottom-color: var(--db-green); transform: translateX(2px); }
.db-footer__line { font-size: 14px; line-height: 1.6; color: rgba(232, 244, 255, 0.82); overflow-wrap: anywhere; }
.db-footer__hint { font-size: 12.5px; line-height: 1.7; color: var(--db-mist); }
.db-footer__col--contact .db-footer__list { gap: 12px; }

.db-footer__base {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 24px;
  justify-content: space-between;
  align-items: baseline;
  max-width: var(--db-max);
  margin-inline: auto;
  padding: 18px var(--db-gutter) 34px;
  border-top: 1px solid var(--db-line-soft);
}
.db-footer__legal { font-family: var(--db-mono); font-size: 12.5px; letter-spacing: 0.06em; color: var(--db-mist); }

/* ---------- 9. 显现（脚本配合，未启用脚本时默认可见） ---------- */
.db-js [data-reveal] {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 0.5s var(--db-ease), transform 0.5s var(--db-ease);
}
.db-js [data-reveal].is-visible { opacity: 1; transform: none; }

/* ---------- 10. 响应式 ---------- */
@media (max-width: 1179px) {
  .db-ticker { display: none; }
}

@media (max-width: 1099px) {
  :root { --db-head-h: 66px; }
  .db-navtoggle { display: inline-flex; }
  .db-nav {
    position: absolute;
    left: 0;
    right: 0;
    top: 100%;
    margin-left: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 16px;
    padding: 18px var(--db-gutter) 26px;
    max-height: calc(100vh - var(--db-head-h));
    overflow-y: auto;
    background: linear-gradient(180deg, rgba(13, 39, 66, 0.99), rgba(7, 26, 47, 0.99));
    border-bottom: 1px solid var(--db-line);
    box-shadow: 0 24px 48px -30px rgba(0, 0, 0, 0.9);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transform: translateY(-10px);
    transition: opacity 0.22s var(--db-ease), transform 0.22s var(--db-ease), visibility 0.22s linear;
  }
  .db-nav[data-open] { opacity: 1; visibility: visible; pointer-events: auto; transform: none; }
  .db-nav__list { flex-direction: column; align-items: stretch; gap: 2px; }
  .db-nav__link {
    height: auto;
    padding: 12px 14px;
    border-radius: 12px;
    border-left: 2px solid transparent;
    font-size: 15px;
  }
  .db-nav__link[aria-current="page"] { border-left-color: var(--db-teal); }
  .db-nav__aside { flex-direction: column; align-items: stretch; margin-left: 0; gap: 10px; }
  .db-nav__aside .db-btn { justify-content: center; }
  .db-copy { justify-content: center; }
}

@media (max-width: 1024px) {
  .db-footer__inner { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .db-footer__intro { grid-column: 1 / -1; }
  .db-grid--3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 900px) {
  .db-grid--aside,
  .db-grid--aside-start { grid-template-columns: minmax(0, 1fr); }
  .db-display { transform: none; }
}

@media (max-width: 760px) {
  .db-grid--2,
  .db-grid--3 { grid-template-columns: minmax(0, 1fr); }
  .db-brand__tag { display: none; }
  .db-brand__mark { width: 34px; height: 34px; border-radius: 10px; font-size: 16px; }
  .db-brand__name { font-size: 17px; }
}

@media (max-width: 620px) {
  .db-footer__inner { grid-template-columns: minmax(0, 1fr); }
  .db-footer__base { flex-direction: column; align-items: flex-start; }
  .db-navtoggle__label { display: none; }
}

/* ---------- 11. 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;
  }
  .db-js [data-reveal] { opacity: 1; transform: none; }
}