/* 思顿工具官网 · 共享样式（品牌色取自 Logo：蓝 / 橙） */
:root {
  --blue: #1f5fe0;
  --blue-strong: #174dbd;
  --blue-soft: rgba(31, 95, 224, 0.09);
  --orange: #f08718;
  --bg: #f6f6f4;
  --surface: #ffffff;
  --surface-2: #fbfbfa;
  --line: #e6e5e1;
  --line-strong: #cfceca;
  --ink: #17181b;
  --text-soft: #4f5157;
  --text-mute: #898b91;
  --shadow-card: 0 1px 2px rgba(23, 24, 27, 0.04), 0 8px 28px rgba(23, 24, 27, 0.05);
  --shadow-float: 0 2px 6px rgba(23, 24, 27, 0.05), 0 24px 64px -12px rgba(23, 24, 27, 0.18);
  --mono: ui-monospace, "Cascadia Code", Consolas, "Courier New", monospace;
  --maxw: 1120px;
  --radius: 12px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --blue: #5f92f0;
    --blue-strong: #82aaf4;
    --blue-soft: rgba(95, 146, 240, 0.12);
    --orange: #f09a40;
    --bg: #0e0f11;
    --surface: #16171a;
    --surface-2: #131417;
    --line: #26272b;
    --line-strong: #3c3e44;
    --ink: #ededee;
    --text-soft: #a8aab0;
    --text-mute: #67696f;
    --shadow-card: 0 1px 2px rgba(0, 0, 0, 0.3), 0 8px 28px rgba(0, 0, 0, 0.35);
    --shadow-float: 0 2px 6px rgba(0, 0, 0, 0.4), 0 24px 64px -12px rgba(0, 0, 0, 0.6);
  }
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: "Segoe UI Variable Text", "Segoe UI", "PingFang SC", "Microsoft YaHei UI",
    "Microsoft YaHei", "Noto Sans CJK SC", system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--ink);
  font-size: 15px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

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

::selection {
  background: color-mix(in srgb, var(--blue) 24%, transparent);
}

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

.wrap {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 32px;
}

/* 顶栏 */
.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: saturate(160%) blur(14px);
  background: color-mix(in srgb, var(--bg) 78%, transparent);
  border-bottom: 1px solid color-mix(in srgb, var(--line) 72%, transparent);
}
.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 62px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
  font-size: 15px;
  letter-spacing: 0.02em;
}
.brand img {
  width: 26px;
  height: 26px;
}
.nav {
  display: flex;
  align-items: center;
  gap: 26px;
  font-size: 14px;
  color: var(--text-soft);
}
.nav a {
  transition: color 0.15s ease;
}
.nav a:hover {
  color: var(--ink);
}

/* 按钮 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 600;
  padding: 11px 22px;
  border-radius: 9px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background 0.16s ease, border-color 0.16s ease, transform 0.16s ease,
    box-shadow 0.16s ease;
}
.btn:active {
  transform: translateY(1px);
}
.btn-primary {
  color: #fff;
  background: linear-gradient(to bottom, color-mix(in srgb, var(--blue) 92%, #fff), var(--blue));
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.18), 0 1px 2px rgba(23, 24, 27, 0.2),
    0 6px 18px -6px color-mix(in srgb, var(--blue) 55%, transparent);
}
.btn-primary:hover {
  background: var(--blue-strong);
}
@media (prefers-color-scheme: dark) {
  .btn-primary {
    color: #0c1017;
  }
}
.btn-ghost {
  color: var(--ink);
  background: var(--surface);
  border-color: var(--line-strong);
}
.btn-ghost:hover {
  border-color: var(--text-mute);
}

/* 主视觉 */
.hero {
  position: relative;
  overflow: hidden;
}
.hero-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image: radial-gradient(
    ellipse 720px 420px at 78% -60px,
    var(--blue-soft),
    transparent 70%
  );
}
.hero-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle, var(--line-strong) 1px, transparent 1px);
  background-size: 26px 26px;
  opacity: 0.34;
  -webkit-mask-image: linear-gradient(to bottom, #000 0%, transparent 82%);
  mask-image: linear-gradient(to bottom, #000 0%, transparent 82%);
}
.hero .wrap {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 0.94fr);
  gap: 64px;
  align-items: center;
  padding-top: 84px;
  padding-bottom: 96px;
}
.eyebrow {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.18em;
  color: var(--text-mute);
}
.eyebrow::before {
  content: "";
  width: 18px;
  height: 2px;
  background: var(--orange);
}
.hero h1 {
  margin-top: 22px;
  font-size: clamp(34px, 4.6vw, 52px);
  line-height: 1.22;
  font-weight: 700;
  letter-spacing: 0.01em;
}
.hero .lead {
  margin-top: 20px;
  font-size: 16.5px;
  color: var(--text-soft);
  max-width: 30em;
}
.hero .cta {
  margin-top: 34px;
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

/* 应用窗口示意（纯 CSS 绘制） */
.appwin {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 14px;
  box-shadow: var(--shadow-float);
  overflow: hidden;
  font-size: 12px;
  user-select: none;
}
.appwin-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 38px;
  padding: 0 6px 0 14px;
  border-bottom: 1px solid var(--line);
  background: var(--surface-2);
  color: var(--text-soft);
}
.appwin-caps {
  display: flex;
}
.appwin-caps i {
  position: relative;
  width: 34px;
  height: 26px;
}
.appwin-caps i::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  translate: -50% -50%;
  width: 9px;
  border-top: 1px solid var(--text-mute);
}
.appwin-caps i.max::before {
  height: 8px;
  border: 1px solid var(--text-mute);
  border-radius: 1px;
}
.appwin-caps i.close::before,
.appwin-caps i.close::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 11px;
  border-top: 1px solid var(--text-mute);
  translate: -50% -50%;
  rotate: 45deg;
}
.appwin-caps i.close::after {
  rotate: -45deg;
}
.appwin-body {
  display: grid;
  grid-template-columns: 116px 1fr;
  min-height: 320px;
}
.appwin-side {
  border-right: 1px solid var(--line);
  background: var(--surface-2);
  padding: 10px 8px;
  display: flex;
  flex-direction: column;
  gap: 2px;
  color: var(--text-soft);
}
.appwin-side span {
  padding: 6px 10px;
  border-radius: 7px;
  white-space: nowrap;
}
.appwin-side .on {
  background: var(--blue-soft);
  color: var(--blue);
  font-weight: 600;
}
.appwin-main {
  display: flex;
  flex-direction: column;
  padding: 12px 14px;
  gap: 12px;
}
.appwin-toolbar {
  display: flex;
  gap: 8px;
}
.appwin-toolbar i {
  height: 22px;
  width: 64px;
  border-radius: 6px;
  border: 1px solid var(--line);
  background: var(--surface-2);
}
.appwin-toolbar i.act {
  width: 76px;
  background: var(--blue-soft);
  border-color: color-mix(in srgb, var(--blue) 30%, transparent);
}
.appwin-toolbar i.sm {
  width: 40px;
}
.appwin-grid {
  flex: 1;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
}
.appwin-grid i {
  position: relative;
  border-radius: 8px;
  min-height: 56px;
  border: 1px solid color-mix(in srgb, var(--line) 60%, transparent);
}
.appwin-grid i.done::after {
  content: "";
  position: absolute;
  right: 5px;
  bottom: 5px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--blue);
  box-shadow: 0 1px 3px rgba(23, 24, 27, 0.3);
}
.appwin-grid i.done::before {
  content: "";
  position: absolute;
  right: 8.5px;
  bottom: 9.5px;
  z-index: 1;
  width: 5px;
  height: 2.5px;
  border-left: 1.5px solid #fff;
  border-bottom: 1.5px solid #fff;
  rotate: -45deg;
}
.t1 { background: linear-gradient(135deg, #b9c7ad, #8ba28a); }
.t2 { background: linear-gradient(135deg, #a7b8cc, #7d92ad); }
.t3 { background: linear-gradient(135deg, #d8c6a8, #b49a72); }
.t4 { background: linear-gradient(135deg, #c2b4c9, #94829e); }
.t5 { background: linear-gradient(135deg, #a8c4c4, #7da2a2); }
.t6 { background: linear-gradient(135deg, #ccb8a8, #a2836d); }
.t7 { background: linear-gradient(135deg, #b0bcc4, #85949e); }
.t8 { background: linear-gradient(135deg, #c4c0a8, #9a9573); }
@media (prefers-color-scheme: dark) {
  .appwin-grid i { filter: brightness(0.82) saturate(0.9); }
}
.appwin-status {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--text-mute);
  font-family: var(--mono);
  font-size: 11px;
}
.appwin-progress {
  flex: 1;
  height: 5px;
  border-radius: 99px;
  background: color-mix(in srgb, var(--line) 80%, transparent);
  overflow: hidden;
}
.appwin-progress i {
  display: block;
  height: 100%;
  border-radius: 99px;
  background: var(--blue);
}

/* 亮点条 */
.facts {
  border-top: 1px solid var(--line);
}
.facts .wrap {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  padding-top: 40px;
  padding-bottom: 44px;
}
.fact h3 {
  display: flex;
  align-items: center;
  gap: 9px;
  font-size: 15px;
  font-weight: 600;
}
.fact h3::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 2px;
  background: var(--orange);
  flex-shrink: 0;
}
.fact p {
  margin-top: 6px;
  font-size: 13.5px;
  color: var(--text-mute);
}

/* 分节标题 */
.section-head {
  padding-top: 72px;
  padding-bottom: 30px;
}
.section-head h2 {
  font-size: 26px;
  font-weight: 700;
  letter-spacing: 0.01em;
}
.section-head p {
  margin-top: 8px;
  font-size: 15px;
  color: var(--text-mute);
}

/* 工具卡片 */
.tools {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 22px;
  padding-bottom: 96px;
}
.tool-card {
  position: relative;
  display: flex;
  flex-direction: column;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 26px 28px 20px;
  box-shadow: var(--shadow-card);
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}
a.tool-card:hover {
  transform: translateY(-3px);
  border-color: var(--line-strong);
  box-shadow: var(--shadow-float);
}
.tool-head {
  display: flex;
  align-items: center;
  gap: 15px;
}
.tool-head .icon {
  width: 50px;
  height: 50px;
  border-radius: 12px;
  flex-shrink: 0;
}
.tool-head h3 {
  font-size: 17px;
  font-weight: 600;
}
.tool-head .platform {
  display: block;
  font-size: 12.5px;
  color: var(--text-mute);
  margin-top: 1px;
}
.badge {
  margin-left: auto;
  align-self: flex-start;
  font-size: 11.5px;
  font-weight: 500;
  color: var(--blue);
  background: var(--blue-soft);
  border-radius: 99px;
  padding: 3px 10px;
  white-space: nowrap;
}
.badge.soon {
  color: var(--text-mute);
  background: color-mix(in srgb, var(--text-mute) 12%, transparent);
}
.tool-desc {
  margin-top: 16px;
  font-size: 14px;
  color: var(--text-soft);
  flex: 1;
}
.tool-foot {
  margin-top: 20px;
  padding-top: 14px;
  border-top: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 13.5px;
  font-weight: 500;
  color: var(--text-soft);
}
.tool-foot .arrow {
  transition: transform 0.2s ease, color 0.2s ease;
}
a.tool-card:hover .tool-foot {
  color: var(--blue);
}
a.tool-card:hover .arrow {
  transform: translateX(4px);
  color: var(--blue);
}

/* 产品页主视觉 */
.product-hero {
  position: relative;
  overflow: hidden;
}
.product-hero .wrap {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 0.9fr);
  gap: 64px;
  align-items: center;
  padding-top: 72px;
  padding-bottom: 84px;
}
.product-title {
  display: flex;
  align-items: center;
  gap: 18px;
}
.product-title img {
  width: 64px;
  height: 64px;
  border-radius: 15px;
  flex-shrink: 0;
  box-shadow: var(--shadow-card);
}
.product-title h1 {
  font-size: clamp(28px, 3.4vw, 38px);
  font-weight: 700;
  letter-spacing: 0.01em;
  line-height: 1.2;
}
.product-title .tagline {
  margin-top: 3px;
  font-size: 15px;
  color: var(--text-soft);
}
.product-hero .lead {
  margin-top: 24px;
  font-size: 15.5px;
  color: var(--text-soft);
  max-width: 32em;
}
.download {
  margin-top: 32px;
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}
.download .ver {
  font-size: 13px;
  color: var(--text-mute);
  font-feature-settings: "tnum";
}
.spec {
  margin-top: 26px;
  display: grid;
  gap: 7px;
  font-size: 13px;
  max-width: 560px;
}
.spec > div {
  display: grid;
  grid-template-columns: 76px 1fr;
  gap: 14px;
}
.spec dt {
  color: var(--text-mute);
}
.spec dd {
  color: var(--text-soft);
}
.spec .hash {
  font-family: var(--mono);
  font-size: 12px;
  word-break: break-all;
  line-height: 1.7;
}

/* 特性区（白色区块营造节奏） */
.band {
  background: var(--surface);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
@media (prefers-color-scheme: dark) {
  .band {
    background: var(--surface-2);
  }
}
.features .grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px 44px;
  padding-bottom: 84px;
  counter-reset: feat;
}
.feature::before {
  counter-increment: feat;
  content: counter(feat, decimal-leading-zero);
  font-family: var(--mono);
  font-size: 12.5px;
  letter-spacing: 0.1em;
  color: var(--orange);
}
.feature h4 {
  margin-top: 10px;
  font-size: 16px;
  font-weight: 600;
}
.feature p {
  margin-top: 7px;
  font-size: 14px;
  color: var(--text-soft);
}

/* 更新日志 */
.changelog {
  list-style: none;
  padding-bottom: 88px;
  max-width: 640px;
}
.changelog > li {
  position: relative;
  padding: 0 0 36px 30px;
  border-left: 1px solid var(--line);
  margin-left: 5px;
}
.changelog > li:last-child {
  border-left-color: transparent;
  padding-bottom: 8px;
}
.changelog > li::before {
  content: "";
  position: absolute;
  left: -5.5px;
  top: 7px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--bg);
  border: 2px solid var(--text-mute);
}
.changelog > li:first-child::before {
  border-color: var(--blue);
  background: var(--blue);
  box-shadow: 0 0 0 4px var(--blue-soft);
}
.changelog .rev {
  display: flex;
  align-items: baseline;
  gap: 12px;
  flex-wrap: wrap;
}
.changelog .rev h3 {
  font-size: 16.5px;
  font-weight: 650;
  font-feature-settings: "tnum";
}
.changelog .rev time {
  font-size: 13px;
  color: var(--text-mute);
  font-feature-settings: "tnum";
}
.changelog .latest {
  font-size: 11.5px;
  font-weight: 500;
  color: var(--blue);
  background: var(--blue-soft);
  border-radius: 99px;
  padding: 2px 9px;
}
.changelog ul {
  margin-top: 10px;
  list-style: none;
  display: grid;
  gap: 6px;
}
.changelog ul li {
  display: flex;
  gap: 10px;
  font-size: 14px;
  color: var(--text-soft);
}
.changelog ul li::before {
  content: "";
  flex-shrink: 0;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--line-strong);
  margin-top: 9px;
}

/* 隐私设计（产品页） */
.privacy {
  margin-bottom: 96px;
  max-width: 720px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
  padding: 28px 32px;
  position: relative;
  overflow: hidden;
}
.privacy::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: linear-gradient(to bottom, var(--blue), var(--orange));
}
.privacy h3 {
  font-size: 15.5px;
  font-weight: 600;
}
.privacy p {
  margin-top: 8px;
  font-size: 14px;
  color: var(--text-soft);
}

/* 子页面通用版式 */
.page {
  position: relative;
  overflow: hidden;
}
.page > .wrap {
  position: relative;
  padding-top: 64px;
  padding-bottom: 96px;
}
.page-head {
  max-width: 640px;
  margin-bottom: 48px;
}
.page-head h1 {
  margin-top: 20px;
  font-size: clamp(30px, 3.6vw, 40px);
  font-weight: 700;
  letter-spacing: 0.01em;
  line-height: 1.25;
}
.page-head .lead {
  margin-top: 16px;
  font-size: 15.5px;
  color: var(--text-soft);
}

/* 正文排版（隐私政策等） */
.prose {
  max-width: 680px;
}
.prose h2 {
  margin-top: 40px;
  font-size: 19px;
  font-weight: 650;
}
.prose h2:first-child {
  margin-top: 0;
}
.prose p {
  margin-top: 12px;
  font-size: 14.5px;
  color: var(--text-soft);
}
.prose ul {
  margin-top: 12px;
  list-style: none;
  display: grid;
  gap: 8px;
}
.prose ul li {
  display: flex;
  gap: 10px;
  font-size: 14.5px;
  color: var(--text-soft);
}
.prose ul li::before {
  content: "";
  flex-shrink: 0;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--line-strong);
  margin-top: 9.5px;
}
.prose a {
  color: var(--blue);
}
.prose a:hover {
  text-decoration: underline;
}
.prose .updated {
  margin-top: 48px;
  font-size: 13px;
  color: var(--text-mute);
}

/* 常见问题 */
.faq {
  max-width: 720px;
}
.qa {
  border-bottom: 1px solid var(--line);
}
.qa summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 20px 2px;
  font-size: 15.5px;
  font-weight: 600;
  transition: color 0.15s ease;
}
.qa summary::-webkit-details-marker {
  display: none;
}
.qa summary:hover {
  color: var(--blue);
}
.qa summary::after {
  content: "";
  flex-shrink: 0;
  width: 10px;
  height: 10px;
  border-right: 1.5px solid var(--text-mute);
  border-bottom: 1.5px solid var(--text-mute);
  rotate: 45deg;
  translate: 0 -2px;
  transition: rotate 0.2s ease, translate 0.2s ease;
}
.qa[open] summary::after {
  rotate: 225deg;
  translate: 0 3px;
}
.qa-a {
  padding: 0 2px 22px;
  max-width: 60em;
}
.qa-a p {
  font-size: 14.5px;
  color: var(--text-soft);
}
.qa-a p + p {
  margin-top: 8px;
}
.qa-a a {
  color: var(--blue);
}

/* 关于页：理念卡片与信息面板 */
.principles {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-bottom: 56px;
}
.principle {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
  padding: 26px 28px;
}
.principle::before {
  content: "";
  display: block;
  width: 22px;
  height: 3px;
  border-radius: 2px;
  background: var(--orange);
  margin-bottom: 16px;
}
.principle h3 {
  font-size: 16px;
  font-weight: 600;
}
.principle p {
  margin-top: 8px;
  font-size: 14px;
  color: var(--text-soft);
}
.info-panel {
  max-width: 560px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
  padding: 26px 30px;
}
.info-panel h3 {
  font-size: 15.5px;
  font-weight: 600;
  margin-bottom: 14px;
}
.info-panel dl {
  display: grid;
  gap: 9px;
  font-size: 14px;
}
.info-panel dl > div {
  display: grid;
  grid-template-columns: 84px 1fr;
  gap: 14px;
}
.info-panel dt {
  color: var(--text-mute);
}
.info-panel dd {
  color: var(--text-soft);
}
.info-panel a {
  color: var(--blue);
}
.info-panel a:hover {
  text-decoration: underline;
}

/* 页脚 */
.site-footer {
  border-top: 1px solid var(--line);
  font-size: 13.5px;
  color: var(--text-mute);
}
.footer-main {
  display: flex;
  justify-content: space-between;
  gap: 48px;
  flex-wrap: wrap;
  padding: 44px 0 36px;
}
.footer-main .about p {
  margin-top: 12px;
  max-width: 26em;
}
.footer-main .about .mail {
  margin-top: 8px;
}
.footer-main .about .mail a {
  color: var(--text-soft);
  transition: color 0.15s ease;
}
.footer-main .about .mail a:hover {
  color: var(--blue);
}
.footer-cols {
  display: flex;
  gap: 64px;
  flex-wrap: wrap;
}
.footer-cols h4 {
  font-size: 12.5px;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--text-mute);
  margin-bottom: 14px;
}
.footer-cols nav {
  display: grid;
  gap: 9px;
}
.footer-cols a {
  color: var(--text-soft);
  transition: color 0.15s ease;
}
.footer-cols a:hover {
  color: var(--ink);
}
.footer-legal {
  border-top: 1px solid var(--line);
  padding: 18px 0;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px 24px;
}
.footer-legal .beian {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
}
.footer-legal .beian a {
  transition: color 0.15s ease;
}
.footer-legal .beian a:hover {
  color: var(--ink);
}

/* 滚动浮现（仅在 JS 可用时启用隐藏态） */
.js .reveal {
  opacity: 0;
  translate: 0 16px;
  transition: opacity 0.55s ease, translate 0.55s ease;
}
.js .reveal.in {
  opacity: 1;
  translate: 0 0;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *,
  *::before,
  *::after {
    transition: none !important;
    animation: none !important;
  }
  .js .reveal {
    opacity: 1;
    translate: 0 0;
  }
}

@media (max-width: 960px) {
  .hero .wrap,
  .product-hero .wrap {
    grid-template-columns: 1fr;
    gap: 48px;
    padding-top: 60px;
    padding-bottom: 64px;
  }
  .hero-art,
  .product-art {
    max-width: 560px;
  }
  .facts .wrap {
    grid-template-columns: 1fr 1fr;
    gap: 26px 32px;
  }
  .features .grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 860px) {
  .principles {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .wrap {
    padding: 0 22px;
  }
  .nav {
    gap: 18px;
  }
  .nav .nav-ext {
    display: none;
  }
  .facts .wrap {
    grid-template-columns: 1fr;
    gap: 22px;
  }
  .features .grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }
  .appwin-side {
    display: none;
  }
  .appwin-body {
    grid-template-columns: 1fr;
  }
  .footer-main {
    flex-direction: column;
    gap: 28px;
  }
  .footer-cols {
    gap: 36px;
  }
  .footer-legal {
    flex-direction: column;
  }
}