/* =========================================================================
   大发地址 · 共享样式表  /assets/site.css
   01 复位  02 变量  03 中文排版  04 外壳  05 通用组件  06 响应式与偏好
   ========================================================================= */

/* 01 复位 ---------------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 24px);
}

body, h1, h2, h3, h4, h5, h6, p, ul, ol, li, figure, figcaption,
blockquote, dl, dd, dt, table, th, td, aside, header, footer, nav,
section, article, main, details, summary {
  margin: 0;
  padding: 0;
}

ul, ol { list-style: none; }
img, svg, video, canvas { display: block; max-width: 100%; height: auto; }
button, input, select, textarea { font: inherit; color: inherit; }
a { color: inherit; }
table { border-collapse: collapse; border-spacing: 0; }
summary { cursor: pointer; }
summary::-webkit-details-marker { display: none; }

/* 02 变量 ---------------------------------------------------------------- */
:root {
  --c-ink: #0F2B26;
  --c-paper: #F3EEE4;
  --c-lake: #1E7C93;
  --c-lake-soft: #86C8D8;
  --c-mustard: #C9A227;
  --c-signal: #E2601F;
  --c-link: #A83C0E;
  --c-moss: #4E6B4B;
  --c-stone: #8B8E85;
  --c-clay: #B4643B;

  --line-soft: rgba(15, 43, 38, 0.16);
  --line-strong: rgba(15, 43, 38, 0.42);
  --line-dark: rgba(134, 200, 216, 0.30);
  --line-dark-soft: rgba(134, 200, 216, 0.14);
  --wash: rgba(30, 124, 147, 0.07);
  --wash-strong: rgba(30, 124, 147, 0.16);

  --font-display: "Barlow Condensed", "HarmonyOS Sans SC", "Noto Sans SC",
    "Source Han Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  --font-body: "HarmonyOS Sans SC", "Noto Sans SC", "PingFang SC",
    "Microsoft YaHei", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-mono: "JetBrains Mono", "IBM Plex Mono", ui-monospace, SFMono-Regular,
    Menlo, Consolas, "Courier New", monospace;

  --header-h: 62px;
  --rail-w: 240px;
  --gap: 24px;
  --maxw: 1360px;
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
  --dur: 180ms;
  --dur-slow: 240ms;
}

/* 03 中文排版 ------------------------------------------------------------ */
body {
  background-color: var(--c-paper);
  color: var(--c-ink);
  font-family: var(--font-body);
  font-size: 17px;
  font-weight: 400;
  line-height: 1.75;
  letter-spacing: 0.005em;
  padding-top: var(--header-h);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 900;
  font-stretch: condensed;
  letter-spacing: -0.012em;
  line-height: 1.08;
}

h1 { font-size: clamp(40px, 6vw, 76px); }
h2 { font-size: clamp(28px, 3.6vw, 40px); }
h3 { font-size: clamp(20px, 2.2vw, 28px); line-height: 1.2; }

h4 {
  font-family: var(--font-body);
  font-size: 18px;
  font-weight: 700;
  line-height: 1.35;
}

p { max-width: 100%; }
strong, b { font-weight: 700; }
small { font-size: 13px; }

a { color: var(--c-link); text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { color: var(--c-signal); }

::selection { background: var(--c-mustard); color: var(--c-ink); }

#main-content { scroll-margin-top: var(--header-h); }

:focus-visible {
  outline: 2px solid var(--c-signal);
  outline-offset: 3px;
}

/* 04 外壳 ---------------------------------------------------------------- */

/* --- 跳转链接 --- */
.skip-link {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 999;
  padding: 10px 18px;
  background: var(--c-mustard);
  color: var(--c-ink);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-decoration: none;
  transform: translateY(-130%);
  transition: transform var(--dur) var(--ease);
}
.skip-link:focus,
.skip-link:focus-visible { transform: translateY(0); color: var(--c-ink); outline-offset: 0; }

/* --- 顶部条 --- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 60;
  background: var(--c-ink);
  color: var(--c-paper);
  border-bottom: 1px solid var(--c-lake);
}

.header-bar {
  display: flex;
  align-items: center;
  gap: 14px;
  min-height: var(--header-h);
  padding: 0 clamp(14px, 3vw, 32px);
}

.brand {
  display: inline-flex;
  align-items: baseline;
  gap: 10px;
  flex: 0 0 auto;
  color: var(--c-paper);
  text-decoration: none;
}
.brand:hover { color: var(--c-paper); }
.brand-name {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 22px;
  letter-spacing: 0.04em;
  line-height: 1;
}
.brand-meta {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--c-lake-soft);
}
.brand-code { color: var(--c-mustard); }

.header-rule {
  flex: 1 1 auto;
  min-width: 12px;
  height: 1px;
  background: var(--line-dark);
}

.header-pos {
  display: none;
  align-items: baseline;
  gap: 8px;
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  white-space: nowrap;
}
.header-pos-code { color: var(--c-mustard); }
.header-pos-name { color: var(--c-lake-soft); }

/* --- 导航 --- */
.nav { flex: 0 0 auto; }

.nav-list {
  display: flex;
  align-items: center;
  gap: 2px;
}

.nav-link {
  display: inline-block;
  padding: 9px 11px;
  font-size: 14px;
  color: var(--c-paper);
  text-decoration: none;
  border-bottom: 2px solid transparent;
  transition: color var(--dur) var(--ease),
              border-color var(--dur) var(--ease);
}
.nav-link:hover,
.nav-link:focus-visible { color: var(--c-signal); }
.nav-link[aria-current="page"] {
  color: var(--c-mustard);
  border-bottom-color: var(--c-signal);
}

.header-action {
  flex: 0 0 auto;
  padding: 7px 13px;
  background: var(--c-mustard);
  border: 1px solid var(--c-mustard);
  color: var(--c-ink);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-decoration: none;
  white-space: nowrap;
  transition: background-color var(--dur) var(--ease),
              border-color var(--dur) var(--ease),
              color var(--dur) var(--ease);
}
.header-action:hover,
.header-action:focus-visible {
  background: var(--c-signal);
  border-color: var(--c-signal);
  color: var(--c-ink);
}

/* --- 移动端按钮 --- */
.nav-toggle {
  display: none;
  align-items: center;
  gap: 9px;
  padding: 8px 11px;
  background: transparent;
  border: 1px solid var(--line-dark);
  color: var(--c-paper);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  cursor: pointer;
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}
.nav-toggle:hover { border-color: var(--c-signal); color: var(--c-signal); }
.nav-toggle-glyph {
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 16px;
}
.nav-toggle-glyph span {
  display: block;
  height: 1px;
  width: 100%;
  background: currentColor;
  transition: transform var(--dur) var(--ease);
}
.site-header[data-open] .nav-toggle-glyph span:first-child {
  transform: translateY(3px) rotate(45deg);
}
.site-header[data-open] .nav-toggle-glyph span:last-child {
  transform: translateY(-3px) rotate(-45deg);
}

/* --- 阅读进度 --- */
.progress {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 2px;
  background: rgba(134, 200, 216, 0.14);
  overflow: hidden;
}
.progress-fill {
  display: block;
  height: 100%;
  width: 100%;
  background: var(--c-signal);
  transform: scaleX(0);
  transform-origin: 0 50%;
  will-change: transform;
}

/* --- 左侧栏目坐标栏 --- */
.rail { display: none; }

/* --- 页脚 --- */
.site-footer {
  background: var(--c-ink);
  color: var(--c-paper);
  border-top: 1px solid var(--c-lake);
  margin-top: clamp(56px, 8vw, 104px);
  padding: clamp(36px, 5vw, 60px) 0 clamp(28px, 4vw, 44px);
}

.footer-inner {
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 clamp(16px, 3.2vw, 40px);
}

.footer-lead {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 6px 18px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--line-dark);
}
.footer-brand {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 26px;
  letter-spacing: 0.04em;
  line-height: 1.1;
}
.footer-tagline {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--c-lake-soft);
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  padding-top: 28px;
}
.footer-col {
  padding: 0 22px;
  border-left: 1px solid var(--line-dark);
  min-width: 0;
}
.footer-col:first-child {
  border-left: 0;
  padding-left: 0;
}

.footer-title {
  margin-bottom: 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.14em;
  color: var(--c-mustard);
}

.footer-list li { margin-bottom: 8px; font-size: 14px; line-height: 1.6; }
.footer-list li:last-child { margin-bottom: 0; }
.footer-list a {
  color: var(--c-paper);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.footer-list a:hover,
.footer-list a:focus-visible {
  color: var(--c-signal);
  border-bottom-color: var(--c-signal);
}
.footer-list-plain span {
  color: var(--c-lake-soft);
  font-size: 13.5px;
  word-break: break-word;
}
.footer-list-plain .mono,
.footer-list-plain .ver { font-family: var(--font-mono); letter-spacing: 0.04em; }

/* --- 回到首屏 --- */
.to-top {
  position: fixed;
  right: 18px;
  bottom: 18px;
  z-index: 80;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  background: var(--c-ink);
  border: 1px solid var(--c-lake);
  color: var(--c-paper);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-decoration: none;
  opacity: 0;
  visibility: hidden;
  transform: translateY(6px);
  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) linear;
}
.to-top[data-visible] {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.to-top:hover,
.to-top:focus-visible { border-color: var(--c-signal); color: var(--c-signal); }
.to-top-arrow { color: var(--c-signal); font-size: 13px; line-height: 1; }

/* 05 通用组件 ------------------------------------------------------------ */

/* --- 内容容器 --- */
.wrap {
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 clamp(16px, 3.2vw, 40px);
}
.wrap-narrow { max-width: 860px; }

.prose {
  max-width: 720px;
  font-size: 17px;
  line-height: 1.78;
}
.prose p + p { margin-top: 1.1em; }
.prose h2, .prose h3 { margin: 1.8em 0 0.6em; }
.prose ul, .prose ol { margin: 1em 0; padding-left: 1.2em; }
.prose li { margin-bottom: 0.4em; }

/* --- 面包屑 --- */
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding: 18px 0;
  border-bottom: 1px solid var(--line-soft);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--c-stone);
}
.breadcrumb li { display: inline-flex; align-items: center; gap: 8px; }
.breadcrumb li + li::before { content: "/"; color: var(--c-stone); }
.breadcrumb a { color: var(--c-lake); text-decoration: none; }
.breadcrumb a:hover { color: var(--c-link); }
.breadcrumb [aria-current="page"] { color: var(--c-ink); }

/* --- 章节标题组 --- */
.chapter-head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  gap: 8px 16px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line-soft);
  transition: border-color var(--dur) var(--ease);
}
.chapter-code {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--c-lake);
}
.chapter-title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(28px, 3.4vw, 40px);
  letter-spacing: -0.012em;
  line-height: 1.06;
}
.section-label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--c-stone);
}
[data-chapter] { scroll-margin-top: calc(var(--header-h) + 32px); }
[data-chapter].is-current > .chapter-head { border-bottom-color: var(--c-signal); }
[data-chapter].is-current .chapter-code { color: var(--c-signal); }

/* --- 等宽 / 版本标注 --- */
.mono {
  font-family: var(--font-mono);
  letter-spacing: 0.04em;
}
.ver {
  font-family: var(--font-mono);
  color: var(--c-mustard);
  letter-spacing: 0.04em;
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 2px 8px;
  border: 1px solid currentColor;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  line-height: 1.6;
  color: var(--c-lake);
}
.tag-version { color: #8a6f13; }
.tag-signal { color: var(--c-link); }

/* --- 按钮 --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 11px 20px;
  border: 1px solid transparent;
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 500;
  line-height: 1.4;
  text-decoration: none;
  cursor: pointer;
  transition: background-color var(--dur) var(--ease),
              border-color var(--dur) var(--ease),
              color var(--dur) var(--ease);
}
.btn-primary {
  background: var(--c-lake);
  border-color: var(--c-lake);
  color: var(--c-paper);
}
.btn-primary:hover,
.btn-primary:focus-visible {
  background: var(--c-signal);
  border-color: var(--c-signal);
  color: var(--c-ink);
}
.btn-ghost {
  background: transparent;
  border-color: var(--c-moss);
  color: var(--c-ink);
}
.btn-ghost:hover,
.btn-ghost:focus-visible {
  border-color: var(--c-signal);
  color: var(--c-link);
}
.btn-on-dark {
  background: transparent;
  border-color: var(--c-lake-soft);
  color: var(--c-paper);
}
.btn-on-dark:hover,
.btn-on-dark:focus-visible {
  background: var(--c-signal);
  border-color: var(--c-signal);
  color: var(--c-ink);
}

/* --- 对照矩阵表 --- */
.matrix {
  width: 100%;
  font-size: 15px;
  line-height: 1.6;
}
.matrix th,
.matrix td {
  padding: 12px 14px;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--line-soft);
}
.matrix thead th {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.1em;
  color: var(--c-lake);
  border-bottom: 1px solid var(--c-moss);
  white-space: nowrap;
}
.matrix tbody tr:nth-child(even) { background: var(--wash); }
.matrix tbody tr.is-current { background: var(--wash-strong); }

/* --- 折叠问答 --- */
.qa { border-bottom: 1px solid var(--line-soft); }
.qa summary {
  position: relative;
  padding: 16px 40px 16px 18px;
  border-left: 3px solid var(--c-moss);
  font-weight: 500;
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}
.qa summary::after {
  content: "+";
  position: absolute;
  right: 12px;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-mono);
  color: var(--c-lake);
}
.qa[open] summary {
  border-left-color: var(--c-signal);
  color: var(--c-link);
}
.qa[open] summary::after { content: "–"; color: var(--c-signal); }
.qa-body {
  padding: 4px 12px 20px 18px;
  border-left: 3px solid var(--c-signal);
  color: #2A3B37;
  font-size: 16px;
}
.qa-body p + p { margin-top: 0.9em; }

/* --- 网格 --- */
.grid-2 { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--gap); }
.grid-3 { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: var(--gap); }
.grid-12 { display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); gap: var(--gap); }

/* --- 分隔线 --- */
.rule { height: 1px; border: 0; background: var(--line-soft); }
.rule-dark { background: var(--line-dark); }

/* --- 图片容器 --- */
.frame {
  position: relative;
  display: block;
  width: 100%;
  overflow: hidden;
  border: 1px solid var(--line-soft);
  background: var(--wash);
}
.frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.frame-wide { aspect-ratio: 21 / 9; }
.frame-16x9 { aspect-ratio: 16 / 9; }
.frame-square { aspect-ratio: 1 / 1; }

.plot-grid {
  background-image:
    linear-gradient(rgba(30, 124, 147, 0.22) 1px, transparent 1px),
    linear-gradient(90deg, rgba(30, 124, 147, 0.22) 1px, transparent 1px);
  background-size: 8px 8px;
  background-position: 0 0;
}

/* --- 显现 --- */
.js [data-reveal] {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity var(--dur-slow) var(--ease), transform var(--dur-slow) var(--ease);
}
.js [data-reveal].is-in {
  opacity: 1;
  transform: translateY(0);
}

/* 06 响应式与偏好 -------------------------------------------------------- */

@media (min-width: 1200px) {
  .header-pos { display: inline-flex; }
}

@media (min-width: 1100px) {
  body { padding-left: var(--rail-w); }
  .site-header { left: var(--rail-w); }

  .rail {
    display: flex;
    flex-direction: column;
    position: fixed;
    left: 0;
    top: 0;
    bottom: 0;
    width: var(--rail-w);
    z-index: 65;
    background: var(--c-ink);
    border-right: 1px solid var(--c-lake);
    padding: calc(var(--header-h) + 22px) 18px 20px;
    overflow-y: auto;
  }
  .rail-head {
    display: flex;
    align-items: baseline;
    gap: 8px;
    padding-bottom: 14px;
    border-bottom: 1px solid var(--line-dark);
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: 0.12em;
  }
  .rail-head-code { color: var(--c-mustard); }
  .rail-head-note { color: var(--c-lake-soft); }

  .rail-list { margin-top: 14px; }
  .rail-link {
    display: flex;
    align-items: baseline;
    gap: 10px;
    padding: 10px 10px 10px 12px;
    border-left: 2px solid transparent;
    color: var(--c-paper);
    text-decoration: none;
    font-size: 14px;
    transition: background-color var(--dur) var(--ease),
                border-color var(--dur) var(--ease),
                color var(--dur) var(--ease);
  }
  .rail-link:hover,
  .rail-link:focus-visible { background: var(--wash-dark); color: var(--c-lake-soft); }
  .rail-link[aria-current="page"] {
    border-left-color: var(--c-signal);
    background: var(--wash-dark);
    color: var(--c-paper);
  }
  .rail-num {
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: 0.06em;
    color: var(--c-lake-soft);
    flex: 0 0 auto;
  }
  .rail-link[aria-current="page"] .rail-num { color: var(--c-mustard); }
  .rail-name { flex: 1 1 auto; }

  .rail-foot {
    margin-top: auto;
    padding-top: 16px;
    border-top: 1px solid var(--line-dark);
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: 0.08em;
    color: var(--c-lake-soft);
    display: flex;
    gap: 8px;
  }
  .rail-foot-ver { color: var(--c-mustard); }
  .rail-foot-sep { color: var(--c-stone); }
}

@media (max-width: 1023px) {
  .nav {
    position: fixed;
    top: var(--header-h);
    left: 0;
    right: 0;
    z-index: 59;
    padding: 6px 16px 20px;
    background: var(--c-ink);
    border-bottom: 1px solid var(--c-lake);
    max-height: calc(100vh - var(--header-h));
    overflow-y: auto;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: opacity var(--dur) var(--ease),
                transform var(--dur) var(--ease),
                visibility var(--dur) linear;
  }
  .site-header[data-open] .nav {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
  }
  .nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
  }
  .nav-item + .nav-item { border-top: 1px solid var(--line-dark-soft); }
  .nav-link {
    display: block;
    padding: 14px 4px 14px 12px;
    font-size: 16px;
    border-bottom: 0;
    border-left: 2px solid transparent;
  }
  .nav-link:hover { background: var(--wash-dark); }
  .nav-link[aria-current="page"] {
    border-left-color: var(--c-signal);
    border-bottom-color: transparent;
    color: var(--c-mustard);
    background: var(--wash-dark);
  }
  .nav-toggle { display: inline-flex; }
}

@media (max-width: 900px) {
  body { font-size: 16px; }
  .grid-2, .grid-3 { grid-template-columns: minmax(0, 1fr); }
  .grid-12 { grid-template-columns: repeat(6, minmax(0, 1fr)); }

  .footer-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    row-gap: 28px;
  }
  .footer-col { padding: 0 20px; }
  .footer-col:nth-child(odd) { border-left: 0; padding-left: 0; }
}

@media (max-width: 720px) {
  .brand-tag { display: none; }
  .header-rule { min-width: 8px; }
  .matrix th, .matrix td { padding: 10px 10px; font-size: 14px; }
}

@media (max-width: 560px) {
  :root { --header-h: 56px; }
  .brand-name { font-size: 19px; }
  .header-action { display: none; }

  .footer-grid { grid-template-columns: minmax(0, 1fr); row-gap: 0; }
  .footer-col {
    border-left: 0;
    padding: 16px 0 0;
    border-top: 1px solid var(--line-dark-soft);
    margin-top: 16px;
  }
  .footer-col:first-child { border-top: 0; margin-top: 0; padding-top: 0; }

  .to-top { right: 12px; bottom: 12px; padding: 9px 11px; }
}

@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; }
  .to-top { transform: none; }
}