/* ============================================================
   激光脉冲 · 官方网站 v3.0
   设计方向：Anthropic / OpenAI 式编辑排版
   暖纸色 · 衬线标题 · 发丝线 · 单一强调色 · 克制动效
   ============================================================ */

:root {
  /* 纸与墨 */
  --paper:   #FAF9F6;
  --paper-2: #F3F1EB;
  --paper-3: #FFFFFF;
  --ink:     #191813;
  --ink-2:   #57544A;
  --ink-3:   #8F8B7E;

  --hairline:   #E4E1D7;
  --hairline-2: #D5D1C4;

  /* 单一强调色：深激光绿 */
  --accent:     #0E7D53;
  --accent-ink: #0A5C3E;

  --serif: 'Source Serif 4', 'Noto Serif SC', 'Songti SC', Georgia, 'SimSun', serif;
  --sans: 'Inter', 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
  --mono:  ui-monospace, 'SF Mono', 'Cascadia Mono', Menlo, Consolas, monospace;

  --nav-h: 64px;
  --max-w: 1160px;
  --radius: 12px;

  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; scroll-padding-top: calc(var(--nav-h) + 24px); }
body {
  font-family: var(--sans);
  background: var(--paper);
  color: var(--ink);
  line-height: 1.65;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }
::selection { background: rgba(14, 125, 83, 0.16); }

.container { max-width: var(--max-w); margin: 0 auto; padding: 0 28px; }

/* ---------- 文字部件 ---------- */
.kicker {
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 20px;
}
h2 {
  font-family: var(--serif);
  font-size: clamp(32px, 4.4vw, 46px);
  font-weight: 600;
  letter-spacing: -0.01em;
  line-height: 1.15;
}
.section-sub {
  font-size: 17px;
  color: var(--ink-2);
  max-width: 560px;
  margin-top: 14px;
}

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 500;
  font-size: 15px;
  border-radius: 8px;
  transition: transform 0.15s var(--ease), background 0.15s, border-color 0.15s, box-shadow 0.15s;
  white-space: nowrap;
}
.btn svg { width: 18px; height: 18px; flex-shrink: 0; }
.btn-ink {
  background: var(--ink);
  color: var(--paper);
  padding: 12px 22px;
}
.btn-ink:hover { background: #2C2A24; transform: translateY(-1px); box-shadow: 0 6px 16px -6px rgba(25, 24, 19, 0.4); }
.btn-ink:active { transform: translateY(0); }
.btn-line {
  border: 1px solid var(--hairline-2);
  color: var(--ink);
  padding: 12px 22px;
  background: transparent;
}
.btn-line:hover { border-color: var(--ink-3); background: var(--paper-2); }
.btn-lg { padding: 14px 26px; font-size: 16px; }
.btn-sm { padding: 8px 16px; font-size: 14px; }
.btn small {
  font-family: var(--mono);
  font-size: 11px;
  opacity: 0.65;
  padding-left: 10px;
  border-left: 1px solid rgba(255, 255, 255, 0.25);
}

/* ============================================================
   导航
   ============================================================ */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  height: var(--nav-h);
  background: rgba(250, 249, 246, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s;
}
.nav.is-scrolled { border-bottom-color: var(--hairline); }
.nav-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 28px;
  height: 100%;
  display: flex;
  align-items: center;
  gap: 28px;
}
.brand { display: flex; align-items: center; gap: 10px; }
.brand-mark { border-radius: 7px; }
.brand-cn { font-weight: 600; font-size: 15px; letter-spacing: 0.02em; }

.nav-links { display: flex; gap: 2px; margin-left: auto; }
.nav-links a {
  padding: 7px 13px;
  border-radius: 6px;
  font-size: 14px;
  color: var(--ink-2);
  transition: color 0.15s, background 0.15s;
}
.nav-links a:hover { color: var(--ink); background: rgba(25, 24, 19, 0.05); }
.nav-links a.is-active { color: var(--accent); }

.nav-right { display: flex; align-items: center; gap: 10px; }
.lang-switch {
  font-family: var(--mono);
  font-size: 12px;
  padding: 7px 12px;
  border-radius: 6px;
  border: 1px solid var(--hairline-2);
  color: var(--ink-2);
  transition: border-color 0.15s, color 0.15s;
}
.lang-switch:hover { color: var(--ink); border-color: var(--ink-3); }
.nav-hamburger { display: none; flex-direction: column; gap: 4px; padding: 10px; }
.nav-hamburger span { width: 20px; height: 1.5px; background: var(--ink); }

/* ============================================================
   Hero
   ============================================================ */
.hero { padding: calc(var(--nav-h) + 72px) 0 0; }
.hero-inner { max-width: var(--max-w); }
.hero-title { margin: 8px 0 24px; }
.hero-title-main {
  display: block;
  font-family: var(--serif);
  font-size: clamp(56px, 9vw, 108px);
  font-weight: 600;
  letter-spacing: 0.01em;
  line-height: 1.05;
}
.hero-title-sub {
  display: block;
  font-family: var(--serif);
  font-style: italic;
  font-weight: 400;
  font-size: clamp(22px, 3vw, 34px);
  color: var(--accent);
  margin-top: 12px;
}
.hero-desc {
  font-size: 17px;
  color: var(--ink-2);
  max-width: 600px;
  margin-bottom: 36px;
  line-height: 1.8;
}
.hero-ctas { display: flex; gap: 14px; flex-wrap: wrap; }

/* 判定线演示台 */
.hero-stage {
  position: relative;
  height: 340px;
  margin-top: 56px;
  border-top: 1px solid var(--hairline);
  border-bottom: 1px solid var(--hairline);
  background: var(--paper);
  overflow: hidden;
}
.hero-stage canvas { position: absolute; inset: 0; width: 100%; height: 100%; }
.stage-caption {
  position: absolute;
  top: 14px; left: 28px;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.22em;
  color: var(--ink-3);
}

/* 数据行 */
.hero-facts {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  padding: 40px 0 64px;
}
.fact { padding: 0 24px; border-left: 1px solid var(--hairline); }
.fact:first-child { border-left: none; padding-left: 0; }
.fact strong {
  display: block;
  font-family: var(--mono);
  font-size: clamp(30px, 3.6vw, 42px);
  font-weight: 500;
  line-height: 1;
  letter-spacing: -0.02em;
}
.fact small {
  display: block;
  margin-top: 8px;
  font-size: 12.5px;
  color: var(--ink-3);
  letter-spacing: 0.04em;
}

/* ============================================================
   区块骨架
   ============================================================ */
.section { padding: 104px 0; }
.section.band { border-top: 1px solid var(--hairline); }
.band-tint { background: var(--paper-2); }
.section.narrow .container { max-width: 880px; }

.section-head { margin-bottom: 64px; }
.section-head.head-left { max-width: 880px; }

/* ============================================================
   特色 — 编号网格
   ============================================================ */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 48px 40px;
}
.feature { border-top: 1px solid var(--hairline-2); padding-top: 22px; }
.feature-no {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--accent);
  letter-spacing: 0.1em;
}
.feature h3 {
  font-family: var(--serif);
  font-size: 21px;
  font-weight: 600;
  margin: 12px 0 10px;
}
.feature p { font-size: 14.5px; color: var(--ink-2); line-height: 1.75; }
.chip {
  display: inline-block;
  margin-top: 14px;
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.14em;
  padding: 4px 10px;
  border: 1px solid var(--hairline-2);
  border-radius: 999px;
  color: var(--ink-3);
}

/* ============================================================
   玩法 — 图文行
   ============================================================ */
.play-row {
  display: grid;
  grid-template-columns: 5fr 7fr;
  gap: 64px;
  align-items: center;
  padding: 56px 0;
}
.play-row + .play-row { border-top: 1px solid var(--hairline); }
.row-reverse > .play-copy { order: 2; }
.row-reverse > .frame { order: 1; }
.play-num {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--accent);
  letter-spacing: 0.2em;
}
.play-copy h3 {
  font-family: var(--serif);
  font-size: clamp(26px, 3vw, 34px);
  font-weight: 600;
  line-height: 1.25;
  margin: 14px 0 16px;
}
.play-copy p { font-size: 15.5px; color: var(--ink-2); line-height: 1.85; max-width: 460px; }

/* 通用图框 */
.frame {
  background: var(--paper-3);
  border: 1px solid var(--hairline);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 1px 2px rgba(25, 24, 19, 0.05), 0 24px 48px -32px rgba(25, 24, 19, 0.28);
}
.frame img { width: 100%; aspect-ratio: 16 / 10; object-fit: cover; }
.frame figcaption {
  padding: 12px 18px;
  border-top: 1px solid var(--hairline);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--ink-3);
}

/* 合成示意 SVG */
.frame-diagram { background: var(--paper); }
.synth-svg { width: 100%; height: auto; display: block; padding: 24px 12px 8px; }
.synth-baseline { stroke: var(--hairline-2); stroke-width: 1; }
.synth-wave { fill: none; stroke: var(--ink); stroke-width: 1.5; stroke-linecap: round; }
.synth-dot { fill: var(--accent); }
.synth-dot.d2 { fill: var(--ink); }
.synth-labels text {
  font-family: var(--mono);
  font-size: 11px;
  fill: var(--ink-3);
  text-anchor: middle;
}

/* ============================================================
   曲目
   ============================================================ */
.tracks-wrap {
  display: grid;
  grid-template-columns: 7fr 5fr;
  gap: 56px;
  align-items: start;
}
.stats-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  margin-bottom: 36px;
}
.stat { border-left: 1px solid var(--hairline); padding-left: 20px; }
.stat:first-child { border-left: none; padding-left: 0; }
.stat strong {
  font-family: var(--mono);
  font-size: 34px;
  font-weight: 500;
  line-height: 1;
}
.stat span { display: block; margin-top: 6px; font-size: 12.5px; color: var(--ink-3); letter-spacing: 0.06em; }

.diff-table { border-top: 1px solid var(--hairline-2); }
.diff-row {
  display: flex;
  align-items: baseline;
  gap: 20px;
  padding: 16px 4px;
  border-bottom: 1px solid var(--hairline);
}
.diff-row b {
  font-family: var(--mono);
  font-size: 18px;
  font-weight: 600;
  min-width: 44px;
  color: var(--accent);
}
.diff-row:nth-child(1) b { color: var(--ink-2); }
.diff-row:nth-child(2) b { color: var(--ink); }
.diff-row label {
  display: block;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  color: var(--ink-3);
  margin-bottom: 2px;
}
.diff-row span { font-size: 14px; color: var(--ink-2); }

/* ============================================================
   截图
   ============================================================ */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-auto-rows: auto;
  gap: 20px;
}
.g-card {
  background: var(--paper-3);
  border: 1px solid var(--hairline);
  border-radius: var(--radius);
  overflow: hidden;
  cursor: zoom-in;
  transition: box-shadow 0.2s var(--ease), transform 0.2s var(--ease);
}
.g-card:hover { box-shadow: 0 2px 4px rgba(25,24,19,0.06), 0 20px 40px -24px rgba(25,24,19,0.3); transform: translateY(-2px); }
.g-wide { grid-column: span 2; }
.g-card img { width: 100%; aspect-ratio: 16 / 9; object-fit: cover; }
.g-card figcaption {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 12px 18px;
  border-top: 1px solid var(--hairline);
}
.g-card figcaption label { font-family: var(--mono); font-size: 11px; color: var(--accent); letter-spacing: 0.1em; }
.g-card figcaption h4 { font-size: 14px; font-weight: 500; }
.g-card figcaption small { font-family: var(--mono); font-size: 10.5px; color: var(--ink-3); letter-spacing: 0.06em; }
.gallery-hint {
  margin-top: 28px;
  text-align: center;
  font-size: 12.5px;
  color: var(--ink-3);
  letter-spacing: 0.06em;
}

/* ============================================================
   下载
   ============================================================ */
.dl-card {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 40px;
  align-items: center;
  background: var(--paper-3);
  border: 1px solid var(--hairline);
  border-radius: 16px;
  padding: 44px 48px;
  margin-bottom: 40px;
}
.dl-version {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--accent);
  margin-bottom: 10px;
}
.dl-card h3 {
  font-family: var(--serif);
  font-size: clamp(22px, 2.6vw, 30px);
  font-weight: 600;
  margin-bottom: 16px;
}
.dl-meta { display: flex; gap: 10px 22px; flex-wrap: wrap; font-size: 13.5px; color: var(--ink-2); }
.dl-meta span { display: inline-flex; align-items: center; gap: 8px; }
.dl-meta span::before { content: ''; width: 4px; height: 4px; border-radius: 50%; background: var(--hairline-2); }
.dl-meta code {
  font-family: var(--mono);
  font-size: 12px;
  background: var(--paper-2);
  padding: 2px 8px;
  border-radius: 5px;
}
.dl-meta span:last-child::before { display: none; }

.install-steps {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
}
.install-steps li { border-top: 1px solid var(--hairline-2); padding-top: 16px; }
.install-steps span {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--accent);
  letter-spacing: 0.1em;
}
.install-steps b { display: block; font-size: 15px; font-weight: 600; margin: 6px 0 4px; }
.install-steps p { font-size: 13px; color: var(--ink-3); }

/* ============================================================
   更新日志 / 关于 / FAQ（窄栏）
   ============================================================ */
.log-list { border-top: 1px solid var(--hairline-2); }
.log-item {
  display: grid;
  grid-template-columns: 150px 1fr;
  gap: 32px;
  padding: 26px 4px;
  border-bottom: 1px solid var(--hairline);
}
.log-time strong { font-family: var(--mono); font-size: 15px; font-weight: 600; color: var(--accent); }
.log-time span { display: block; font-family: var(--mono); font-size: 12px; color: var(--ink-3); margin-top: 3px; }
.log-item p { font-size: 15px; color: var(--ink-2); line-height: 1.8; }

.about-quote {
  border-left: 2px solid var(--accent);
  padding: 8px 0 8px 32px;
  margin-bottom: 56px;
}
.about-quote p {
  font-family: var(--serif);
  font-size: clamp(19px, 2.2vw, 24px);
  line-height: 1.75;
  color: var(--ink);
  max-width: 640px;
}
.about-quote footer { margin-top: 20px; font-size: 14px; color: var(--ink-3); }
.about-quote cite { font-style: normal; color: var(--ink); font-weight: 600; }

.team-list { border-top: 1px solid var(--hairline-2); }
.team-item {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 24px;
  padding: 18px 4px;
  border-bottom: 1px solid var(--hairline);
}
.team-role { font-size: 13.5px; color: var(--ink-3); }
.team-item strong { font-size: 16px; font-weight: 600; }
.team-item strong small { font-family: var(--mono); font-size: 12px; font-weight: 400; color: var(--ink-3); margin-left: 8px; letter-spacing: 0.08em; }

/* FAQ */
.faq-item { border-top: 1px solid var(--hairline); }
.faq-item:last-of-type { border-bottom: 1px solid var(--hairline); }
.faq-item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 22px 4px;
  cursor: pointer;
  list-style: none;
  font-size: 16.5px;
  font-weight: 500;
  transition: color 0.15s;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary svg { width: 18px; height: 18px; color: var(--ink-3); flex-shrink: 0; transition: transform 0.25s var(--ease); }
.faq-item[open] summary svg { transform: rotate(45deg); }
.faq-item[open] summary { color: var(--accent); }
.faq-item p { padding: 0 4px 24px; color: var(--ink-2); font-size: 15px; line-height: 1.85; max-width: 640px; }

/* ============================================================
   社群
   ============================================================ */
.comm-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  max-width: 880px;
  margin: 0 auto;
}
.comm-card {
  background: var(--paper-3);
  border: 1px solid var(--hairline);
  border-radius: var(--radius);
  overflow: hidden;
  transition: box-shadow 0.2s var(--ease);
}
.comm-card:hover { box-shadow: 0 2px 4px rgba(25,24,19,0.06), 0 20px 40px -24px rgba(25,24,19,0.3); }
.comm-card img { width: 100%; aspect-ratio: 1; object-fit: cover; padding: 20px; }
.comm-card figcaption { padding: 4px 20px 20px; }
.comm-card h4 { font-size: 15.5px; font-weight: 600; margin-bottom: 4px; }
.comm-card p { font-size: 13px; color: var(--ink-3); }

/* ============================================================
   Footer
   ============================================================ */
.footer {
  border-top: 1px solid var(--hairline);
  background: var(--paper-2);
  padding: 64px 0 32px;
}
.foot-inner {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 48px;
  padding-bottom: 44px;
}
.foot-brand { display: flex; align-items: flex-start; gap: 12px; }
.foot-brand img { border-radius: 7px; }
.foot-title { display: block; font-weight: 600; font-size: 15px; }
.foot-sub {
  display: block;
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.16em;
  color: var(--ink-3);
  margin-top: 4px;
}
.foot-cols { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; }
.foot-col h4 {
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-3);
  margin-bottom: 14px;
}
.foot-col a { display: block; font-size: 13.5px; color: var(--ink-2); padding: 4px 0; transition: color 0.15s; }
.foot-col a:hover { color: var(--accent); }
.foot-bar {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding-top: 22px;
  border-top: 1px solid var(--hairline);
  font-size: 12px;
  color: var(--ink-3);
}

/* ============================================================
   Lightbox · Toast · Reveal
   ============================================================ */
.lb {
  position: fixed;
  inset: 0;
  background: rgba(20, 19, 15, 0.94);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 300;
  padding: 48px;
}
.lb.is-open { display: flex; }
.lb img {
  max-width: 100%;
  max-height: calc(100vh - 120px);
  border-radius: 8px;
  border: 1px solid rgba(255, 255, 255, 0.12);
}
.lb-close, .lb-nav {
  width: 44px; height: 44px;
  border-radius: 50%;
  color: rgba(255, 255, 255, 0.7);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 26px;
  transition: color 0.15s, background 0.15s;
}
.lb-close:hover, .lb-nav:hover { color: #fff; background: rgba(255, 255, 255, 0.1); }
.lb-close { position: absolute; top: 20px; right: 24px; }
.lb-nav { position: absolute; top: 50%; transform: translateY(-50%); }
.lb-prev { left: 20px; }
.lb-next { right: 20px; }
.lb-nav svg { width: 24px; height: 24px; }
.lb-counter {
  position: absolute;
  bottom: 22px; left: 50%;
  transform: translateX(-50%);
  font-family: var(--mono);
  font-size: 12px;
  color: rgba(255, 255, 255, 0.5);
  letter-spacing: 0.1em;
}

.toast {
  position: fixed;
  bottom: 36px; left: 50%;
  transform: translateX(-50%) translateY(12px);
  padding: 12px 24px;
  border-radius: 8px;
  background: var(--ink);
  color: var(--paper);
  font-size: 14px;
  z-index: 400;
  opacity: 0;
  transition: opacity 0.25s, transform 0.25s var(--ease);
  pointer-events: none;
}
.toast.is-visible { opacity: 1; transform: translateX(-50%) translateY(0); }

.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}
.reveal.is-visible { opacity: 1; transform: translateY(0); }

/* ============================================================
   响应式
   ============================================================ */
@media (max-width: 1024px) {
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
  .play-row { grid-template-columns: 1fr; gap: 32px; padding: 44px 0; }
  .row-reverse > .play-copy { order: 1; }
  .row-reverse > .frame { order: 2; }
  .tracks-wrap { grid-template-columns: 1fr; gap: 40px; }
  .gallery-grid { grid-template-columns: repeat(2, 1fr); }
  .hero-facts { grid-template-columns: repeat(2, 1fr); gap: 24px 0; }
  .fact:nth-child(3) { border-left: none; padding-left: 0; }
  .foot-inner { grid-template-columns: 1fr; gap: 36px; }
}

@media (max-width: 640px) {
  :root { --nav-h: 56px; }
  .container { padding: 0 20px; }
  .nav-inner { padding: 0 20px; }
  .nav-links { display: none; }
  .nav-hamburger { display: flex; }
  .nav.is-open { background: var(--paper); border-bottom-color: var(--hairline); }
  .nav.is-open .nav-links {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: var(--nav-h); left: 0; right: 0;
    padding: 12px 20px 20px;
    background: var(--paper);
    border-bottom: 1px solid var(--hairline);
    gap: 2px;
  }
  .nav.is-open .nav-links a { padding: 12px 10px; font-size: 15px; }
  .nav-right .lang-switch { display: none; }

  .hero { padding-top: calc(var(--nav-h) + 48px); }
  .hero-stage { height: 240px; margin-top: 40px; }
  .hero-facts { grid-template-columns: repeat(2, 1fr); padding: 32px 0 48px; gap: 20px 0; }
  .fact { padding: 0 16px; }
  .fact:nth-child(odd) { border-left: none; padding-left: 0; }

  .section { padding: 72px 0; }
  .section-head { margin-bottom: 44px; }
  .feature-grid { grid-template-columns: 1fr; gap: 36px; }
  .gallery-grid { grid-template-columns: 1fr; }
  .g-wide { grid-column: span 1; }
  .dl-card { grid-template-columns: 1fr; padding: 32px 24px; }
  .install-steps { grid-template-columns: repeat(2, 1fr); gap: 20px; }
  .log-item { grid-template-columns: 1fr; gap: 8px; }
  .comm-grid { grid-template-columns: 1fr; max-width: 360px; }
  .foot-cols { grid-template-columns: repeat(2, 1fr); }
  .foot-bar { flex-direction: column; text-align: center; }
  .team-item { flex-direction: column; gap: 4px; }
}

@media (max-width: 420px) {
  .install-steps { grid-template-columns: 1fr; }
  .hero-title-main { font-size: 48px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; }
}