/* ==========================================================
   红黑娱乐城 · 共享样式表 /assets/site.css
   轨道导航 / 档案记录感 / 红黑骨架 · 现代粗野主义
   ========================================================== */

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

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

body {
  margin: 0;
  min-height: 100vh;
}

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

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

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

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

button {
  font: inherit;
  color: inherit;
  background: none;
  border: 0;
  cursor: pointer;
}

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

:focus-visible {
  outline: 3px solid var(--gold);
  outline-offset: 3px;
}

/* ---------- 2. 变量 ---------- */
:root {
  /* 品牌色 */
  --crimson: #D5122B;
  --crimson-deep: #7A0C1B;
  --ink: #0B0B0D;
  --charcoal: #1C1C21;
  --smoke: #3A3A42;
  --warm: #F4F0E8;
  --sand: #D9D2C3;
  --gold: #C9A227;
  --teal: #2A7F7A;
  --white: #FFFFFF;

  /* 尺寸 */
  --rail-w: 84px;
  --bar-h: 58px;
  --edge: clamp(16px, 3.6vw, 44px);
  --frame: 1240px;

  /* 字体 */
  --font-head: "Noto Sans SC", "Source Han Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, sans-serif;
  --font-body: "Noto Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, sans-serif;
  --font-mono: "IBM Plex Mono", "JetBrains Mono", ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;

  /* 字号阶梯 */
  --step-1: clamp(2.25rem, 5.4vw, 4.25rem);
  --step-2: clamp(1.65rem, 3.4vw, 2.6rem);
  --step-3: clamp(1.15rem, 1.8vw, 1.4rem);

  /* 缓动 */
  --ease: cubic-bezier(.22, .61, .36, 1);
  --fast: 180ms;
  --mid: 240ms;
}

/* ---------- 3. 基础排版 ---------- */
body {
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.75;
  color: var(--ink);
  background-color: var(--warm);
  background-image:
    linear-gradient(180deg, rgba(11, 11, 13, .04) 0%, rgba(11, 11, 13, 0) 320px),
    repeating-linear-gradient(90deg, rgba(11, 11, 13, .028) 0 1px, transparent 1px 96px);
  -webkit-font-smoothing: antialiased;
}

@media (min-width: 900px) {
  body {
    padding-left: var(--rail-w);
  }
}

@media (max-width: 899px) {
  body {
    padding-top: var(--bar-h);
    font-size: 16px;
  }
}

h1, h2, h3, h4 {
  font-family: var(--font-head);
  font-weight: 900;
  letter-spacing: -0.03em;
  line-height: 1.02;
  text-wrap: balance;
}

h1 { font-size: var(--step-1); }
h2 { font-size: var(--step-2); }
h3 { font-size: var(--step-3); line-height: 1.2; }

p {
  text-wrap: pretty;
}

strong {
  font-weight: 900;
}

code, kbd, samp {
  font-family: var(--font-mono);
  font-size: 0.92em;
}

::selection {
  background: var(--crimson);
  color: var(--white);
}

/* ---------- 4. 无障碍 ---------- */
.skip-link {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 999;
  padding: 14px 22px;
  font-family: var(--font-head);
  font-size: 14px;
  font-weight: 900;
  letter-spacing: .04em;
  color: var(--ink);
  background: var(--gold);
  border: 2px solid var(--ink);
  box-shadow: 4px 4px 0 var(--ink);
  transform: translateY(-140%);
  transition: transform var(--fast) var(--ease);
}

.skip-link:focus {
  transform: translateY(0);
}

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

/* ---------- 5. 滚动进度尺 ---------- */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  z-index: 90;
  pointer-events: none;
  background: linear-gradient(90deg, var(--crimson) 0%, var(--gold) 100%);
  transform: scaleX(0);
  transform-origin: 0 50%;
  will-change: transform;
}

/* ---------- 6. 头部 · 左侧固定标识轴 ---------- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  width: var(--rail-w);
  z-index: 60;
  display: flex;
  flex-direction: column;
  background: var(--ink);
  border-right: 1px solid var(--smoke);
}

.site-header::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  width: 3px;
  pointer-events: none;
  background: linear-gradient(180deg, var(--crimson) 0%, var(--crimson-deep) 46%, rgba(122, 12, 27, 0) 100%);
}

.header-bar {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 18px;
  padding: 18px 6px 16px;
  border-bottom: 1px solid var(--smoke);
}

/* 品牌 */
.brand {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  width: 100%;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: .04em;
  color: var(--white);
  background: var(--crimson);
  box-shadow: 4px 4px 0 var(--crimson-deep);
  transition: box-shadow var(--fast) var(--ease), transform var(--fast) var(--ease);
}

.brand:hover .brand-mark {
  transform: translate(-2px, -2px);
  box-shadow: 6px 6px 0 var(--gold);
}

.brand-name {
  writing-mode: vertical-rl;
  font-family: var(--font-head);
  font-size: 13px;
  font-weight: 900;
  letter-spacing: .34em;
  line-height: 1;
  color: var(--sand);
}

/* 状态标签 */
.rail-status {
  writing-mode: vertical-rl;
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: .2em;
  color: var(--teal);
}

/* 移动端按钮（桌面隐藏） */
.nav-toggle {
  display: none;
  align-items: center;
  gap: 8px;
  padding: 8px 10px;
  color: var(--warm);
  background: var(--charcoal);
  border: 1px solid var(--smoke);
}

.nav-toggle-bars {
  position: relative;
  display: block;
  width: 18px;
  height: 2px;
  background: var(--crimson);
  transition: background-color var(--fast) var(--ease);
}

.nav-toggle-bars::before,
.nav-toggle-bars::after {
  content: "";
  position: absolute;
  left: 0;
  width: 18px;
  height: 2px;
  background: var(--crimson);
  transition: top var(--fast) var(--ease), transform var(--fast) var(--ease);
}

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

.site-header[data-open] .nav-toggle-bars {
  background: transparent;
}

.site-header[data-open] .nav-toggle-bars::before {
  top: 0;
  transform: rotate(45deg);
}

.site-header[data-open] .nav-toggle-bars::after {
  top: 0;
  transform: rotate(-45deg);
}

.nav-toggle-text {
  font-size: 12px;
  font-weight: 900;
  letter-spacing: .06em;
}

/* 主导航（桌面竖排） */
.site-nav {
  flex: 1 1 auto;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 22px;
  min-height: 0;
  padding: 14px 0 16px;
  overflow-y: auto;
}

.nav-list {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.nav-link {
  display: block;
  padding: 10px 4px;
  font-family: var(--font-head);
  font-size: 12px;
  font-weight: 900;
  line-height: 1.24;
  letter-spacing: .02em;
  text-align: center;
  color: var(--sand);
  background: transparent;
  box-shadow: inset 3px 0 0 transparent;
  transition: color var(--fast) var(--ease),
              background-color var(--fast) var(--ease),
              box-shadow var(--fast) var(--ease);
}

.nav-link:hover {
  color: var(--white);
  background: rgba(213, 18, 43, .16);
  box-shadow: inset 3px 0 0 var(--crimson);
}

.nav-link[aria-current="page"] {
  color: var(--white);
  background: var(--charcoal);
  box-shadow: inset 3px 0 0 var(--crimson);
}

/* 轨道底部行动区 */
.rail-foot {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  padding: 0 6px;
}

.rail-cta {
  display: block;
  width: 100%;
  padding: 12px 4px;
  font-family: var(--font-head);
  font-size: 12px;
  font-weight: 900;
  line-height: 1.2;
  letter-spacing: .04em;
  text-align: center;
  color: var(--white);
  background: var(--crimson);
  box-shadow: 3px 3px 0 var(--crimson-deep);
  transition: background-color var(--fast) var(--ease),
              box-shadow var(--fast) var(--ease),
              transform var(--fast) var(--ease),
              color var(--fast) var(--ease);
}

.rail-cta:hover {
  color: var(--ink);
  background: var(--gold);
  transform: translate(-2px, -2px);
  box-shadow: 5px 5px 0 var(--crimson);
}

.rail-cta:active {
  transform: translate(0, 0);
  box-shadow: 3px 3px 0 var(--crimson);
}

.rail-phone {
  font-family: var(--font-mono);
  font-size: 9px;
  line-height: 1.4;
  letter-spacing: .01em;
  text-align: center;
  word-break: break-all;
  color: var(--sand);
  opacity: .8;
}

/* ---------- 7. 头部 · 移动端抽屉 ---------- */
@media (max-width: 899px) {
  .site-header {
    right: 0;
    bottom: auto;
    width: auto;
    border-right: 0;
    border-bottom: 1px solid var(--smoke);
  }

  .site-header::after {
    top: auto;
    bottom: 0;
    left: 0;
    right: 0;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, var(--crimson) 0%, var(--gold) 100%);
  }

  .header-bar {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    min-height: var(--bar-h);
    padding: 8px 14px;
    border-bottom: 0;
  }

  .brand {
    flex-direction: row;
    align-items: center;
    gap: 10px;
    width: auto;
    flex: 0 1 auto;
    min-width: 0;
  }

  .brand-mark {
    width: 34px;
    height: 34px;
    font-size: 12px;
    box-shadow: 3px 3px 0 var(--crimson-deep);
  }

  .brand-name {
    writing-mode: horizontal-tb;
    font-size: 13px;
    letter-spacing: .1em;
    line-height: 1.2;
    color: var(--warm);
    white-space: nowrap;
  }

  .rail-status {
    writing-mode: horizontal-tb;
    flex: 0 0 auto;
    padding: 3px 7px;
    font-size: 9px;
    letter-spacing: .04em;
    border: 1px solid rgba(42, 127, 122, .55);
    background: rgba(42, 127, 122, .1);
  }

  .nav-toggle {
    display: inline-flex;
    flex: 0 0 auto;
  }

  .site-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex: none;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    gap: 0;
    max-height: 0;
    padding: 0;
    overflow: hidden;
    visibility: hidden;
    background: var(--charcoal);
    border-bottom: 2px solid var(--crimson);
    border-top: 1px solid var(--smoke);
    transition: max-height var(--mid) var(--ease), visibility var(--mid) var(--ease);
  }

  .site-header[data-open] .site-nav {
    max-height: min(78vh, 620px);
    overflow-y: auto;
    visibility: visible;
  }

  .nav-list {
    gap: 0;
    padding: 6px 0;
  }

  .nav-link {
    padding: 14px 20px;
    font-size: 15px;
    line-height: 1.3;
    text-align: left;
    box-shadow: inset 0 0 0 transparent;
    border-bottom: 1px solid rgba(58, 58, 66, .7);
  }

  .nav-link:hover,
  .nav-link[aria-current="page"] {
    box-shadow: inset 4px 0 0 var(--crimson);
  }

  .rail-foot {
    flex-direction: row;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 16px 20px 22px;
    border-top: 1px solid var(--smoke);
  }

  .rail-cta {
    width: auto;
    padding: 11px 20px;
  }

  .rail-phone {
    font-size: 11px;
    letter-spacing: .04em;
    text-align: left;
    opacity: 1;
  }
}

@media (max-width: 400px) {
  .nav-toggle-text { display: none; }
  .brand-name { font-size: 12px; letter-spacing: .06em; }
  .rail-status { font-size: 8px; padding: 2px 5px; letter-spacing: 0; }
  .nav-toggle { padding: 9px 10px; }
}

/* ---------- 8. 页脚 ---------- */
.site-footer {
  position: relative;
  margin-top: clamp(56px, 9vw, 110px);
  background: var(--ink);
  color: var(--sand);
  border-top: 3px solid var(--crimson);
}

.site-footer::before {
  content: "";
  position: absolute;
  top: -3px;
  left: 0;
  width: 96px;
  height: 3px;
  background: var(--gold);
}

.footer-inner {
  max-width: var(--frame);
  margin-inline: auto;
  padding: clamp(40px, 6vw, 72px) var(--edge) clamp(30px, 4vw, 46px);
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 1.9fr) minmax(0, 1.4fr);
  gap: clamp(28px, 4vw, 56px);
}

.footer-mark {
  display: inline-grid;
  place-items: center;
  width: 52px;
  height: 52px;
  font-family: var(--font-mono);
  font-size: 16px;
  font-weight: 700;
  letter-spacing: .04em;
  color: var(--white);
  background: var(--crimson);
  box-shadow: 4px 4px 0 var(--crimson-deep);
}

.footer-name {
  margin-top: 18px;
  font-family: var(--font-head);
  font-size: 20px;
  font-weight: 900;
  letter-spacing: -0.01em;
  color: var(--warm);
}

.footer-tag {
  margin-top: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--sand);
  opacity: .62;
}

.footer-nav {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(20px, 2.4vw, 32px);
}

.footer-col-title {
  margin-bottom: 16px;
  padding-bottom: 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .22em;
  color: var(--gold);
  border-bottom: 1px solid var(--smoke);
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 11px;
}

.footer-links a {
  display: inline-block;
  font-size: 14px;
  color: var(--sand);
  border-bottom: 1px solid transparent;
  transition: color var(--fast) var(--ease), border-color var(--fast) var(--ease);
}

.footer-links a:hover {
  color: var(--white);
  border-bottom-color: var(--crimson);
}

.footer-line {
  margin-bottom: 11px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--sand);
  word-break: break-word;
}

.footer-label {
  display: inline-block;
  min-width: 64px;
  margin-right: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .08em;
  color: rgba(244, 240, 232, .5);
}

.footer-note {
  margin-top: 16px;
  padding-left: 12px;
  font-size: 12px;
  line-height: 1.85;
  color: rgba(244, 240, 232, .62);
  border-left: 2px solid var(--crimson);
}

.footer-legal {
  max-width: var(--frame);
  margin-inline: auto;
  padding: 18px var(--edge) 34px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px 26px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .06em;
  color: rgba(244, 240, 232, .5);
  border-top: 1px solid var(--smoke);
}

.footer-icp {
  color: var(--gold);
  letter-spacing: .1em;
}

.footer-copy {
  font-size: 11px;
}

@media (max-width: 1080px) {
  .footer-inner {
    grid-template-columns: minmax(0, 1fr) minmax(0, 2fr);
  }
  .footer-contact {
    grid-column: 1 / -1;
    padding-top: clamp(20px, 3vw, 32px);
    border-top: 1px solid var(--smoke);
  }
}

@media (max-width: 720px) {
  .footer-inner {
    grid-template-columns: minmax(0, 1fr);
  }
  .footer-nav {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .footer-contact {
    padding-top: 24px;
  }
}

@media (max-width: 460px) {
  .footer-nav {
    grid-template-columns: minmax(0, 1fr);
    gap: 24px;
  }
  .footer-legal {
    flex-direction: column;
    align-items: flex-start;
  }
}

/* ---------- 9. 布局容器与栅格 ---------- */
.wrap {
  width: 100%;
  max-width: var(--frame);
  margin-inline: auto;
  padding-inline: var(--edge);
}

.wrap--narrow {
  max-width: 780px;
}

.grid {
  display: grid;
  gap: clamp(20px, 3vw, 40px);
}

.grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid--7-5 { grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); }
.grid--5-7 { grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); }
.grid--8-4 { grid-template-columns: minmax(0, 8fr) minmax(0, 4fr); }

@media (max-width: 899px) {
  .grid--2,
  .grid--3,
  .grid--7-5,
  .grid--5-7,
  .grid--8-4 {
    grid-template-columns: minmax(0, 1fr);
  }
}

/* ---------- 10. 面包屑 ---------- */
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding-top: 22px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--smoke);
}

.breadcrumb li {
  display: flex;
  align-items: center;
  gap: 8px;
}

.breadcrumb li + li::before {
  content: "/";
  color: var(--gold);
  font-weight: 700;
}

.breadcrumb a {
  color: var(--smoke);
  border-bottom: 1px solid transparent;
  transition: color var(--fast) var(--ease), border-color var(--fast) var(--ease);
}

.breadcrumb a:hover {
  color: var(--crimson);
  border-bottom-color: var(--crimson);
}

.breadcrumb [aria-current="page"] {
  color: var(--ink);
  font-weight: 700;
}

/* ---------- 11. 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 26px;
  font-family: var(--font-head);
  font-size: 14px;
  font-weight: 900;
  line-height: 1.2;
  letter-spacing: .04em;
  text-align: center;
  color: var(--white);
  background: var(--crimson);
  border: 2px solid var(--ink);
  box-shadow: 5px 5px 0 var(--ink);
  transition: transform var(--fast) var(--ease),
              box-shadow var(--fast) var(--ease),
              background-color var(--fast) var(--ease),
              color var(--fast) var(--ease);
}

.btn:hover {
  transform: translate(-2px, -2px);
  box-shadow: 7px 7px 0 var(--ink);
}

.btn:active {
  transform: translate(0, 0);
  box-shadow: 5px 5px 0 var(--ink);
}

.btn--ghost {
  color: var(--ink);
  background: transparent;
  border-color: var(--ink);
  box-shadow: 5px 5px 0 var(--smoke);
}

.btn--ghost:hover {
  color: var(--white);
  background: var(--ink);
  box-shadow: 7px 7px 0 var(--crimson);
}

.btn--dark {
  color: var(--warm);
  background: var(--ink);
  border-color: var(--ink);
  box-shadow: 5px 5px 0 var(--crimson);
}

.btn--dark:hover {
  color: var(--ink);
  background: var(--gold);
  box-shadow: 7px 7px 0 var(--crimson-deep);
}

.btn--gold {
  color: var(--ink);
  background: var(--gold);
  border-color: var(--ink);
  box-shadow: 5px 5px 0 var(--ink);
}

.btn--gold:hover {
  color: var(--white);
  background: var(--crimson);
}

/* ---------- 12. 标签 ---------- */
.tag {
  display: inline-block;
  padding: 3px 9px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  line-height: 1.5;
  letter-spacing: .12em;
  color: var(--smoke);
  background: transparent;
  border: 1px solid var(--smoke);
}

.tag--crimson {
  color: var(--white);
  background: var(--crimson);
  border-color: var(--crimson);
}

.tag--gold {
  color: var(--gold);
  border-color: var(--gold);
  background: rgba(201, 162, 39, .08);
}

.tag--live {
  color: var(--white);
  background: var(--teal);
  border-color: var(--teal);
}

/* ---------- 13. 栏目眼标 ---------- */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .24em;
  text-transform: uppercase;
  color: var(--crimson);
}

.eyebrow::before {
  content: "";
  width: 22px;
  height: 2px;
  background: currentColor;
}

/* ---------- 14. 图片容器（供页面阶段放置占位） ---------- */
.media {
  position: relative;
  display: block;
  overflow: hidden;
  max-width: 100%;
  background:
    linear-gradient(135deg, var(--charcoal) 0%, var(--ink) 100%);
  border: 2px solid var(--ink);
  box-shadow: 6px 6px 0 rgba(11, 11, 13, .18);
}

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

.media--16x9 { aspect-ratio: 16 / 9; }
.media--4x3  { aspect-ratio: 4 / 3; }
.media--1x1  { aspect-ratio: 1 / 1; }
.media--3x4  { aspect-ratio: 3 / 4; }

.media__badge {
  position: absolute;
  left: 0;
  bottom: 0;
  max-width: 100%;
  padding: 6px 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .12em;
  color: var(--white);
  background: var(--crimson);
}

/* ---------- 15. 正文阅读区 ---------- */
.prose {
  max-width: 44em;
  font-size: 17px;
  line-height: 1.85;
}

.prose > * + * {
  margin-top: 1.2em;
}

.prose h2,
.prose h3 {
  margin-top: 1.8em;
  color: var(--ink);
}

.prose ul,
.prose ol {
  padding-left: 1.2em;
  list-style: none;
}

.prose li {
  position: relative;
  padding-left: 18px;
  margin-block: .5em;
}

.prose li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .78em;
  width: 8px;
  height: 2px;
  background: var(--crimson);
}

.prose blockquote {
  padding: 16px 20px;
  background: var(--sand);
  border-left: 4px solid var(--crimson);
  font-size: 16px;
  line-height: 1.8;
}

.prose a {
  color: var(--crimson);
  border-bottom: 2px solid rgba(213, 18, 43, .3);
  transition: border-color var(--fast) var(--ease), color var(--fast) var(--ease);
}

.prose a:hover {
  color: var(--crimson-deep);
  border-bottom-color: var(--crimson-deep);
}

/* ---------- 16. 滚动擦入 ---------- */
[data-reveal] {
  opacity: 0;
  transform: translate3d(-14px, 14px, 0);
  transition: opacity 520ms var(--ease), transform 520ms var(--ease);
}

[data-reveal].is-visible {
  opacity: 1;
  transform: translate3d(0, 0, 0);
}

/* ---------- 17. 减弱动效 ---------- */
@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;
  }

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

  .btn:hover,
  .rail-cta:hover,
  .brand:hover .brand-mark {
    transform: none;
  }
}