/* 页间 Folio 官网 —— 纯静态，无构建步骤 */

:root {
  --paper: #f6f3ec;
  --paper-2: #efeadf;
  --card: #fffdf8;
  --ink: #1b211e;
  --ink-2: #464e49;
  --ink-3: #7a817c;
  --line: #e2dccf;
  --line-2: #d6cfbf;

  --green-950: #0f2e28;
  --green-900: #153b33;
  --green-800: #1b4a40;
  --green-700: #22594d;
  --green-600: #2a6a5c;
  --green-500: #3d8574;
  --green-100: #e2ede7;

  --gold: #e2bb63;
  --gold-soft: rgba(226, 187, 99, 0.45);
  --coral: #c1462f;

  --serif: 'Songti SC', 'Noto Serif SC', 'Source Han Serif SC', 'Source Han Serif CN', 'STSong',
    'SimSun', serif;
  --sans: -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei',
    'Noto Sans SC', 'Helvetica Neue', Arial, sans-serif;
  --hand: 'Kaiti SC', 'STKaiti', 'KaiTi', 'BiauKai', 'Kaiti TC', serif;
  --latin: 'Iowan Old Style', 'Palatino Linotype', Palatino, Georgia, serif;
  --mono: ui-monospace, 'SF Mono', Menlo, Consolas, monospace;

  --radius: 16px;
  --shadow-sm: 0 1px 2px rgba(22, 44, 38, 0.06), 0 2px 8px rgba(22, 44, 38, 0.05);
  --shadow-lg: 0 0 0 1px rgba(22, 44, 38, 0.07), 0 2px 4px rgba(22, 44, 38, 0.04),
    0 24px 48px -12px rgba(22, 52, 44, 0.22), 0 60px 120px -40px rgba(22, 52, 44, 0.35);
  --ease: cubic-bezier(0.22, 0.8, 0.24, 1);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
  scroll-padding-top: 84px;
  -webkit-text-size-adjust: 100%;
}
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 16px/1.75 var(--sans);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: clip;
}
img {
  max-width: 100%;
  height: auto;
}
a {
  color: var(--green-600);
  text-decoration: none;
}
a:hover {
  color: var(--green-800);
}
h1,
h2,
h3 {
  margin: 0;
  font-weight: 700;
  color: var(--ink);
}
p {
  margin: 0;
}
code {
  font: 0.88em/1 var(--mono);
  background: rgba(34, 89, 77, 0.08);
  color: var(--green-800);
  padding: 0.18em 0.42em;
  border-radius: 6px;
}
kbd {
  display: inline-block;
  min-width: 1.7em;
  padding: 0.1em 0.42em;
  margin: 0 0.08em;
  font: 600 0.82em/1.5 var(--sans);
  text-align: center;
  color: var(--ink-2);
  background: var(--card);
  border: 1px solid var(--line-2);
  border-bottom-width: 2px;
  border-radius: 6px;
  vertical-align: 0.08em;
}
:focus-visible {
  outline: 2px solid var(--green-500);
  outline-offset: 3px;
  border-radius: 6px;
}
.icon {
  width: 1em;
  height: 1em;
  flex: none;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.skip {
  position: absolute;
  left: 16px;
  top: -48px;
  z-index: 100;
  padding: 8px 14px;
  background: var(--ink);
  color: #fff;
  border-radius: 8px;
}
.skip:focus {
  top: 12px;
  color: #fff;
}

.container {
  width: min(1120px, 100% - 48px);
  margin-inline: auto;
}
.container-wide {
  width: min(1240px, 100% - 48px);
  margin-inline: auto;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.55em;
  font: 600 15px/1 var(--sans);
  border-radius: 12px;
  padding: 12px 18px;
  border: 1px solid transparent;
  cursor: pointer;
  white-space: nowrap;
  transition:
    transform 0.2s var(--ease),
    box-shadow 0.2s var(--ease),
    background-color 0.2s,
    color 0.2s,
    border-color 0.2s;
}
.btn .icon {
  font-size: 1.15em;
  stroke-width: 2;
}
.btn-sm {
  font-size: 14px;
  padding: 9px 14px;
  border-radius: 10px;
}
.btn-lg {
  font-size: 17px;
  padding: 17px 28px;
  border-radius: 14px;
}
.btn-primary {
  background: linear-gradient(180deg, var(--green-600), var(--green-800));
  color: #fdfbf5;
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.16),
    0 1px 2px rgba(15, 46, 40, 0.3),
    0 8px 20px -6px rgba(21, 59, 51, 0.5);
}
.btn-primary:hover {
  color: #fff;
  transform: translateY(-1px);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.18),
    0 2px 4px rgba(15, 46, 40, 0.3),
    0 14px 28px -8px rgba(21, 59, 51, 0.55);
}
.btn-ghost {
  background: rgba(255, 253, 248, 0.6);
  color: var(--ink);
  border-color: var(--line-2);
}
.btn-ghost:hover {
  color: var(--ink);
  background: var(--card);
  border-color: var(--ink-3);
}
.btn-light {
  background: #fdfbf5;
  color: var(--green-900);
  box-shadow: 0 10px 30px -10px rgba(0, 0, 0, 0.5);
}
.btn-light:hover {
  color: var(--green-950);
  transform: translateY(-1px);
  background: #fff;
}
.btn.is-disabled {
  pointer-events: none;
  filter: grayscale(0.7);
  opacity: 0.55;
  box-shadow: none;
}

/* ---------- Nav ---------- */
.nav {
  position: fixed;
  inset: 0 0 auto;
  z-index: 50;
  transition:
    background-color 0.3s,
    box-shadow 0.3s,
    backdrop-filter 0.3s;
}
.nav.is-scrolled {
  background: rgba(246, 243, 236, 0.78);
  -webkit-backdrop-filter: saturate(1.4) blur(16px);
  backdrop-filter: saturate(1.4) blur(16px);
  box-shadow: 0 1px 0 rgba(22, 44, 38, 0.08);
}
.nav-inner {
  display: flex;
  align-items: center;
  gap: 24px;
  height: 68px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
}
.brand:hover {
  color: var(--ink);
}
.brand img {
  width: 30px;
  height: 30px;
}
.brand-cn {
  font: 700 20px/1 var(--serif);
  letter-spacing: 0.06em;
}
.brand-en {
  font: 500 19px/1 var(--latin);
  color: var(--ink-2);
  margin-left: -2px;
}
.nav-links {
  display: flex;
  gap: 4px;
  margin-left: auto;
}
.nav-links a {
  padding: 8px 12px;
  font-size: 14.5px;
  color: var(--ink-2);
  border-radius: 8px;
  transition:
    color 0.2s,
    background-color 0.2s;
}
.nav-links a:hover {
  color: var(--ink);
  background: rgba(34, 89, 77, 0.07);
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  padding: 148px 0 0;
  isolation: isolate;
  overflow-x: clip;
}
.hero::before {
  /* 横线笔记纸 */
  content: '';
  position: absolute;
  inset: 0 0 30%;
  z-index: -1;
  background-image: repeating-linear-gradient(
    to bottom,
    transparent 0 39px,
    rgba(34, 89, 77, 0.075) 39px 40px
  );
  -webkit-mask-image: radial-gradient(ellipse 60% 70% at 50% 30%, #000 20%, transparent 72%);
  mask-image: radial-gradient(ellipse 60% 70% at 50% 30%, #000 20%, transparent 72%);
}
.hero::after {
  content: '';
  position: absolute;
  left: 50%;
  top: 46%;
  z-index: -1;
  width: min(1400px, 130vw);
  aspect-ratio: 2;
  transform: translateX(-50%);
  background:
    radial-gradient(closest-side, rgba(61, 133, 116, 0.22), transparent) 20% 40% / 60% 80%
      no-repeat,
    radial-gradient(closest-side, rgba(226, 187, 99, 0.26), transparent) 80% 45% / 55% 75%
      no-repeat;
  filter: blur(20px);
}
.hero-copy {
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
}
.pill {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 5px 14px 5px 5px;
  font-size: 13.5px;
  color: var(--ink-2);
  background: rgba(255, 253, 248, 0.75);
  border: 1px solid var(--line);
  border-radius: 99px;
  box-shadow: var(--shadow-sm);
  transition:
    border-color 0.2s,
    color 0.2s;
}
.pill:hover {
  color: var(--ink);
  border-color: var(--line-2);
}
.pill-tag {
  padding: 3px 10px;
  font-weight: 600;
  font-size: 12.5px;
  color: var(--green-800);
  background: var(--green-100);
  border-radius: 99px;
}
.pill .icon {
  color: var(--ink-3);
  transition: transform 0.2s var(--ease);
}
.pill:hover .icon {
  transform: translateX(2px);
}
.hero-title {
  position: relative;
  margin-top: 30px;
  font: 700 clamp(46px, 7.4vw, 98px) / 1.14 var(--serif);
  letter-spacing: 0.02em;
  color: var(--ink);
}
.mark {
  position: relative;
  white-space: nowrap;
  background: linear-gradient(
      transparent 56%,
      var(--gold-soft) 56%,
      var(--gold-soft) 90%,
      transparent 90%
    )
    no-repeat 0 0 / 100% 100%;
  padding: 0 0.04em;
  margin: 0 -0.04em;
}
.js .mark {
  background-size: 0% 100%;
  animation: sweep 0.9s 0.55s var(--ease) forwards;
}
@keyframes sweep {
  to {
    background-size: 100% 100%;
  }
}
.hand-note {
  position: absolute;
  left: calc(100% + 8px);
  bottom: 0.72em;
  width: max-content;
  font: 400 26px/1.4 var(--hand);
  color: var(--coral);
  letter-spacing: 0.04em;
  transform: rotate(-6deg);
  transform-origin: 0 100%;
}
.hand-note::before {
  /* 指向“页间”的小箭头 */
  content: '';
  position: absolute;
  left: -46px;
  top: 58%;
  width: 40px;
  height: 22px;
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 40 22'%3E%3Cg fill='none' stroke='%23c1462f' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M38 5C27 3 14 7 4 17'/%3E%3Cpath d='M4 9v8.5h8.5'/%3E%3C/g%3E%3C/svg%3E")
    no-repeat center / contain;
}
.hand-note svg {
  display: block;
  width: 100%;
  height: 12px;
  margin-top: 2px;
}
.hand-note path {
  fill: none;
  stroke: var(--coral);
  stroke-width: 2.4;
  stroke-linecap: round;
}
.js .hand-note {
  opacity: 0;
  animation: note-in 0.8s 1.2s var(--ease) forwards;
}
.js .hand-note path {
  stroke-dasharray: 280;
  stroke-dashoffset: 280;
  animation: draw 0.9s 1.6s var(--ease) forwards;
}
@keyframes note-in {
  from {
    opacity: 0;
    transform: rotate(-6deg) translateY(8px);
  }
  to {
    opacity: 1;
    transform: rotate(-6deg);
  }
}
@keyframes draw {
  to {
    stroke-dashoffset: 0;
  }
}
.hero-lead {
  max-width: 640px;
  margin-top: 26px;
  font-size: clamp(17px, 1.6vw, 20px);
  line-height: 1.85;
  color: var(--ink-2);
}
.hero-cta {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 14px;
  margin-top: 38px;
}
.hero-meta {
  margin-top: 18px;
  font-size: 13.5px;
  color: var(--ink-3);
  letter-spacing: 0.02em;
}
.platform-hint {
  margin-top: 10px;
  font-size: 13.5px;
  color: var(--coral);
}
.hero-shot {
  margin-top: 72px;
  perspective: 2000px;
}

/* ---------- Window frame ---------- */
.window {
  position: relative;
  container-type: inline-size;
  border-radius: 14px;
  overflow: hidden;
  background: #fff;
  box-shadow: var(--shadow-lg);
}
.window img {
  display: block;
  width: 100%;
  height: auto;
}
.lights {
  position: absolute;
  left: 0.9cqw;
  top: 1.44cqw;
  display: flex;
  gap: 0.5cqw;
  transform: translateY(-50%);
}
.lights i {
  width: 0.78cqw;
  height: 0.78cqw;
  min-width: 6px;
  min-height: 6px;
  border-radius: 50%;
  background: #ff5f57;
  box-shadow: inset 0 0 0 0.5px rgba(0, 0, 0, 0.12);
}
.lights i:nth-child(2) {
  background: #febc2e;
}
.lights i:nth-child(3) {
  background: #28c840;
}
@supports (animation-timeline: view()) {
  @media (prefers-reduced-motion: no-preference) {
    .hero-shot .window {
      transform-origin: 50% 0;
      animation: tilt linear both;
      animation-timeline: view();
      animation-range: entry 0% cover 42%;
    }
    @keyframes tilt {
      from {
        transform: rotateX(16deg) scale(0.93);
      }
      to {
        transform: none;
      }
    }
  }
}

/* ---------- Values ---------- */
.values {
  padding: 88px 0 96px;
}
.values-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
}
.value {
  display: flex;
  gap: 14px;
  align-items: flex-start;
}
.value > .icon {
  font-size: 22px;
  margin-top: 3px;
  color: var(--green-600);
}
.value strong {
  display: block;
  font-size: 16px;
  font-weight: 600;
}
.value span {
  display: block;
  margin-top: 2px;
  font-size: 14px;
  line-height: 1.6;
  color: var(--ink-3);
}

/* ---------- Section scaffolding ---------- */
.section {
  padding: 132px 0;
}
.section-tint {
  background: var(--paper-2);
  box-shadow:
    inset 0 1px 0 rgba(22, 44, 38, 0.05),
    inset 0 -1px 0 rgba(22, 44, 38, 0.05);
}
.section-head {
  max-width: 720px;
}
.section-head.center {
  margin: 0 auto 56px;
  text-align: center;
}
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font: 600 13px/1 var(--sans);
  letter-spacing: 0.2em;
  color: var(--green-600);
}
.eyebrow::before {
  content: '';
  width: 22px;
  height: 1.5px;
  background: currentColor;
  opacity: 0.6;
}
.section-head.center .eyebrow::after {
  content: '';
  width: 22px;
  height: 1.5px;
  background: currentColor;
  opacity: 0.6;
}
.section h2,
.band h2,
.download h2 {
  margin-top: 18px;
  font: 700 clamp(32px, 4.2vw, 50px) / 1.25 var(--serif);
  letter-spacing: 0.02em;
  text-wrap: balance;
}
.split-copy h2 {
  font-size: clamp(32px, 3.6vw, 44px);
}
.lead {
  margin-top: 20px;
  font-size: 17.5px;
  line-height: 1.9;
  color: var(--ink-2);
}
.section-head.center .lead {
  margin-inline: auto;
  max-width: 640px;
}
.fine {
  margin-top: 22px;
  font-size: 14px;
  color: var(--ink-3);
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px 10px;
}

/* ---------- Dark band ---------- */
.band {
  position: relative;
  padding: 120px 0 128px;
  color: #ebe5d7;
  background:
    radial-gradient(ellipse 60% 80% at 15% 0%, rgba(61, 133, 116, 0.35), transparent 70%),
    radial-gradient(ellipse 50% 70% at 90% 100%, rgba(226, 187, 99, 0.12), transparent 70%),
    linear-gradient(180deg, var(--green-900), var(--green-950));
  overflow: hidden;
}
.band h2 {
  color: #fbf7ec;
}
.eyebrow.on-dark {
  color: var(--gold);
}
.flow {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  margin: 8px 0 0;
  padding: 0;
  list-style: none;
}
.flow-item {
  position: relative;
}
.flow-item:not(:last-child)::after {
  /* 连接下一步的细线 */
  content: '';
  position: absolute;
  top: 26px;
  left: 68px;
  right: -20px;
  height: 1px;
  background: linear-gradient(90deg, rgba(226, 187, 99, 0.55), rgba(226, 187, 99, 0.12));
}
.flow-node {
  display: grid;
  place-items: center;
  width: 52px;
  height: 52px;
  font-size: 22px;
  color: var(--gold);
  background: rgba(226, 187, 99, 0.08);
  border: 1px solid rgba(226, 187, 99, 0.45);
  border-radius: 50%;
}
.flow-node .icon {
  stroke-width: 1.6;
}
.flow-no {
  display: block;
  margin-top: 26px;
  font: 600 13px/1 var(--latin);
  letter-spacing: 0.2em;
  color: var(--gold);
}
.flow-item h3 {
  margin-top: 10px;
  font: 700 23px/1.3 var(--serif);
  color: #fbf7ec;
  letter-spacing: 0.06em;
}
.flow-item p {
  margin-top: 12px;
  font-size: 15px;
  line-height: 1.85;
  color: rgba(235, 229, 215, 0.72);
}

/* ---------- Split rows ---------- */
.split {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 72px;
  align-items: center;
}
.split-reverse {
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
}
.split-reverse .split-copy {
  order: 2;
}
.shot {
  margin: 0;
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--card);
  box-shadow: var(--shadow-lg);
}
.shot img {
  display: block;
  width: 100%;
}
.tools {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 8px;
  margin: 30px 0 0;
  padding: 0;
  list-style: none;
}
.tools li {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  padding: 14px 4px 11px;
  font-size: 13px;
  color: var(--ink-2);
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 12px;
  transition:
    transform 0.2s var(--ease),
    border-color 0.2s,
    box-shadow 0.2s;
}
.tools li:hover {
  transform: translateY(-2px);
  border-color: var(--line-2);
  box-shadow: var(--shadow-sm);
}
.tools .icon {
  font-size: 21px;
  color: var(--green-700);
}
.swatches {
  display: inline-flex;
  gap: 5px;
}
.swatches i {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--c);
  box-shadow: inset 0 0 0 1px rgba(0, 0, 0, 0.1);
}
.checks {
  margin: 28px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 13px;
}
.checks li {
  position: relative;
  padding-left: 32px;
  font-size: 15.5px;
  line-height: 1.7;
  color: var(--ink-2);
}
.checks li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 3px;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--green-100)
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%2322594d' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M20 6 9 17l-5-5'/%3E%3C/svg%3E")
    no-repeat center / 12px;
}
.chips {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  margin: 28px 0 0;
  padding: 0;
  list-style: none;
}
.chips li {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 15px;
  font-size: 14px;
  color: var(--ink-2);
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 99px;
}
.chips .icon {
  color: var(--green-600);
  font-size: 16px;
}

/* ---------- Bento ---------- */
.bento {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}
.tile {
  padding: 30px 28px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition:
    transform 0.25s var(--ease),
    box-shadow 0.25s var(--ease);
}
.tile:hover {
  transform: translateY(-3px);
  box-shadow: 0 18px 40px -20px rgba(22, 52, 44, 0.3);
}
.tile > .icon,
.tile-copy > .icon {
  font-size: 24px;
  color: var(--green-600);
}
.tile h3 {
  margin-top: 16px;
  font: 700 19px/1.35 var(--serif);
  letter-spacing: 0.03em;
}
.tile p {
  margin-top: 8px;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--ink-2);
}
.tile-hero {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.6fr);
  gap: 36px;
  align-items: center;
  padding: 0 0 0 40px;
  overflow: hidden;
  background:
    radial-gradient(ellipse 80% 90% at 0% 100%, rgba(61, 133, 116, 0.08), transparent),
    var(--card);
}
.tile-hero h3 {
  font-size: 26px;
}
.tile-hero p {
  font-size: 15.5px;
}
.tile-media {
  align-self: stretch;
  padding: 36px 0 0;
}
.tile-media img {
  display: block;
  width: 100%;
  border-radius: 12px 0 0 0;
  box-shadow:
    0 0 0 1px rgba(22, 44, 38, 0.08),
    -10px 10px 36px -22px rgba(22, 52, 44, 0.35);
}

/* ---------- Privacy tree ---------- */
.tree {
  margin: 0;
  background: #1a2521;
  color: #d9dfd9;
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}
.tree-head {
  position: relative;
  display: flex;
  justify-content: center;
  padding: 13px 16px;
  font-size: 13px;
  color: rgba(217, 223, 217, 0.6);
  background: rgba(255, 255, 255, 0.04);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}
.tree-head .lights {
  left: 16px;
  top: 50%;
  gap: 7px;
}
.tree-head .lights i {
  width: 11px;
  height: 11px;
}
.tree pre {
  margin: 0;
  padding: 28px 30px 32px;
  font: 14px/2 var(--mono);
  overflow-x: auto;
}
.t-dir {
  color: #e8c877;
}
.t-file {
  color: #eef2ee;
}
.t-hidden {
  color: #7fd0b8;
  font-weight: 600;
}
.t-dim {
  color: rgba(217, 223, 217, 0.45);
}
.t-hand {
  font: 17px/1 var(--hand);
  color: #f08e72;
}

/* ---------- Download ---------- */
.download {
  padding-top: 140px;
}
.download-card {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 72px 32px 44px;
  color: #ebe5d7;
  border-radius: 28px;
  overflow: hidden;
  isolation: isolate;
  background:
    radial-gradient(ellipse 70% 60% at 50% 0%, rgba(61, 133, 116, 0.55), transparent 70%),
    radial-gradient(ellipse 40% 50% at 100% 100%, rgba(226, 187, 99, 0.16), transparent 70%),
    linear-gradient(180deg, var(--green-800), var(--green-950));
  box-shadow: 0 40px 80px -40px rgba(15, 46, 40, 0.6);
}
.download-card::before {
  content: '';
  position: absolute;
  inset: 0;
  z-index: -1;
  background-image: repeating-linear-gradient(
    to bottom,
    transparent 0 39px,
    rgba(255, 255, 255, 0.035) 39px 40px
  );
  -webkit-mask-image: linear-gradient(#000, transparent 80%);
  mask-image: linear-gradient(#000, transparent 80%);
}
.download-icon {
  width: 104px;
  height: 104px;
  filter: drop-shadow(0 16px 24px rgba(0, 0, 0, 0.35));
}
.download-card h2 {
  margin-top: 24px;
  color: #fbf7ec;
}
.download-card .lead {
  margin-top: 12px;
  color: rgba(235, 229, 215, 0.75);
}
.download-card .btn {
  margin-top: 34px;
}
.specs {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0;
  margin: 44px 0 0;
  padding-top: 28px;
  border-top: 1px solid rgba(235, 229, 215, 0.14);
  width: min(760px, 100%);
}
.specs div {
  flex: 1 1 150px;
  padding: 4px 16px;
}
.specs div + div {
  border-left: 1px solid rgba(235, 229, 215, 0.14);
}
.specs dt {
  font-size: 12.5px;
  letter-spacing: 0.14em;
  color: rgba(235, 229, 215, 0.55);
}
.specs dd {
  margin: 6px 0 0;
  font-size: 15px;
  color: #fbf7ec;
}
.sha {
  display: flex;
  align-items: center;
  gap: 10px;
  max-width: 100%;
  margin-top: 28px;
  padding: 6px 6px 6px 14px;
  background: rgba(0, 0, 0, 0.18);
  border: 1px solid rgba(235, 229, 215, 0.1);
  border-radius: 10px;
}
.sha-label {
  font-size: 12px;
  letter-spacing: 0.08em;
  color: rgba(235, 229, 215, 0.55);
  flex: none;
}
.sha code {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  background: none;
  padding: 0;
  font-size: 12.5px;
  color: rgba(235, 229, 215, 0.8);
}
.sha-copy {
  flex: none;
  display: grid;
  place-items: center;
  width: 30px;
  height: 30px;
  padding: 0;
  font-size: 15px;
  color: rgba(235, 229, 215, 0.8);
  background: rgba(255, 255, 255, 0.06);
  border: 0;
  border-radius: 7px;
  cursor: pointer;
  transition: background-color 0.2s;
}
.sha-copy:hover {
  background: rgba(255, 255, 255, 0.14);
}
.install {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-top: 24px;
}
.install-col {
  padding: 36px 36px 34px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 22px;
}
.install-col h3 {
  font: 700 22px/1.3 var(--serif);
  letter-spacing: 0.03em;
}
.steps {
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 20px;
}
.steps li {
  display: flex;
  gap: 16px;
}
.step-n {
  flex: none;
  display: grid;
  place-items: center;
  width: 30px;
  height: 30px;
  font: 700 15px/1 var(--latin);
  color: var(--green-800);
  background: var(--green-100);
  border-radius: 50%;
}
.steps strong {
  display: block;
  font-weight: 600;
}
.steps div span {
  display: block;
  margin-top: 2px;
  font-size: 14.5px;
  color: var(--ink-3);
  line-height: 1.7;
}
.notice {
  margin-top: 28px;
  background: #fbf3e2;
  border: 1px solid #efdcb4;
  border-radius: 14px;
}
.notice summary {
  padding: 14px 18px;
  font-size: 14.5px;
  font-weight: 600;
  color: #7b5516;
}
.notice-body {
  padding: 0 18px 16px;
  font-size: 14px;
  line-height: 1.8;
  color: #6c5530;
  display: grid;
  gap: 10px;
}
.notice-body a {
  color: #8c5d10;
  text-decoration: underline;
  text-underline-offset: 3px;
}
.changes {
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 14px;
}
.changes li {
  position: relative;
  padding-left: 18px;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--ink-3);
}
.changes li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--gold);
}
.changes strong {
  display: block;
  font-weight: 600;
  color: var(--ink);
}
.install-col .fine {
  margin-top: 24px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
}

/* ---------- Details / FAQ ---------- */
details summary {
  cursor: pointer;
  list-style: none;
}
details summary::-webkit-details-marker {
  display: none;
}
.faq {
  display: grid;
  grid-template-columns: minmax(0, 0.7fr) minmax(0, 1.3fr);
  gap: 64px;
  align-items: start;
}
.faq .section-head {
  position: sticky;
  top: 120px;
}
.faq-list {
  border-top: 1px solid var(--line-2);
}
.faq-list details {
  border-bottom: 1px solid var(--line-2);
}
.faq-list summary {
  position: relative;
  padding: 24px 48px 24px 0;
  font: 600 17.5px/1.5 var(--sans);
  color: var(--ink);
  transition: color 0.2s;
}
.faq-list summary:hover {
  color: var(--green-700);
}
.faq-list summary::after,
.notice summary::after {
  content: '';
  position: absolute;
  right: 6px;
  top: 50%;
  width: 18px;
  height: 18px;
  margin-top: -9px;
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%237a817c' stroke-width='2' stroke-linecap='round'%3E%3Cpath d='M5 12h14M12 5v14'/%3E%3C/svg%3E")
    no-repeat center / contain;
  transition: transform 0.3s var(--ease);
}
.faq-list details[open] summary::after,
.notice[open] summary::after {
  transform: rotate(45deg);
}
.notice summary {
  position: relative;
  padding-right: 44px;
}
.notice summary::after {
  right: 14px;
  width: 16px;
  height: 16px;
  margin-top: -8px;
  filter: sepia(1) saturate(3) hue-rotate(-10deg);
}
.faq-list details p {
  padding: 0 48px 26px 0;
  font-size: 15.5px;
  line-height: 1.9;
  color: var(--ink-2);
}

/* ---------- Footer ---------- */
.footer {
  padding: 64px 0 40px;
  border-top: 1px solid var(--line);
}
.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 32px;
  flex-wrap: wrap;
}
.footer-brand p {
  margin-top: 14px;
  font: 400 17px/1.6 var(--hand);
  color: var(--ink-3);
  letter-spacing: 0.06em;
}
.footer-links {
  display: flex;
  gap: 28px;
  flex-wrap: wrap;
}
.footer-links a {
  font-size: 14.5px;
  color: var(--ink-2);
}
.footer-links a:hover {
  color: var(--ink);
}
.footer-legal {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 24px;
  margin-top: 44px;
  padding-top: 22px;
  border-top: 1px solid var(--line);
  font-size: 13px;
  color: var(--ink-3);
}
.footer-legal a {
  color: var(--ink-3);
}
.footer-legal a:hover {
  color: var(--ink-2);
}

/* ---------- Toast ---------- */
.toast {
  position: fixed;
  left: 50%;
  bottom: 28px;
  z-index: 60;
  display: flex;
  align-items: center;
  gap: 12px;
  max-width: calc(100% - 32px);
  padding: 13px 18px;
  font-size: 14.5px;
  color: #f4efe3;
  background: rgba(21, 36, 32, 0.94);
  border-radius: 14px;
  box-shadow: 0 20px 40px -12px rgba(0, 0, 0, 0.45);
  transform: translate(-50%, 24px);
  opacity: 0;
  pointer-events: none;
  transition:
    opacity 0.3s,
    transform 0.35s var(--ease);
}
.toast.is-on {
  opacity: 1;
  transform: translate(-50%, 0);
  pointer-events: auto;
}
.toast a {
  color: var(--gold);
  white-space: nowrap;
}

/* ---------- Reveal ---------- */
.js .reveal {
  opacity: 0;
  transform: translateY(28px);
  transition:
    opacity 0.9s var(--ease),
    transform 0.9s var(--ease);
  transition-delay: var(--d, 0s);
}
.js .reveal.in {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  .js .reveal,
  .js .hand-note {
    opacity: 1;
    transform: none;
    transition: none;
    animation: none;
  }
  .js .hand-note {
    transform: rotate(-6deg);
  }
  .js .mark {
    background-size: 100% 100%;
    animation: none;
  }
  .js .hand-note path {
    stroke-dashoffset: 0;
    animation: none;
  }
}

/* ---------- Responsive ---------- */
@media (max-width: 1259px) {
  .hand-note {
    display: none;
  }
}
@media (max-width: 1000px) {
  .nav-links {
    display: none;
  }
  .nav-inner > .btn {
    margin-left: auto;
  }
  .values-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 28px 32px;
  }
  .flow {
    grid-template-columns: 1fr;
    gap: 36px;
    max-width: 560px;
    margin-inline: auto;
  }
  .flow-item {
    padding-left: 76px;
  }
  .flow-node {
    position: absolute;
    left: 0;
    top: 0;
  }
  .flow-item:not(:last-child)::after {
    top: 64px;
    left: 26px;
    right: auto;
    bottom: -28px;
    width: 1px;
    height: auto;
    background: linear-gradient(rgba(226, 187, 99, 0.5), rgba(226, 187, 99, 0.1));
  }
  .flow-no {
    margin-top: 4px;
  }
  .split,
  .faq {
    grid-template-columns: 1fr;
    gap: 48px;
  }
  .split-reverse .split-copy {
    order: 0;
  }
  .faq .section-head {
    position: static;
  }
  .bento {
    grid-template-columns: repeat(2, 1fr);
  }
  .tile-hero {
    grid-template-columns: 1fr;
    padding: 34px 0 0 34px;
    gap: 24px;
  }
  .tile-hero .tile-copy {
    padding-right: 34px;
  }
  .tile-media {
    padding: 0;
  }
  .install {
    grid-template-columns: 1fr;
  }
}
@media (max-width: 640px) {
  body {
    font-size: 15px;
  }
  .container,
  .container-wide {
    width: calc(100% - 32px);
  }
  .nav-inner {
    height: 60px;
  }
  .hero {
    padding-top: 112px;
  }
  .hero-title {
    margin-top: 24px;
  }
  .hero-cta {
    flex-direction: column;
    align-self: stretch;
    gap: 10px;
  }
  .hero-cta .btn {
    width: 100%;
  }
  .hero-shot {
    margin-top: 48px;
  }
  .window {
    border-radius: 9px;
  }
  .values {
    padding: 64px 0;
  }
  .values-grid {
    grid-template-columns: 1fr;
    gap: 22px;
  }
  .section {
    padding: 88px 0;
  }
  .band {
    padding: 88px 0 72px;
  }
  .flow-item {
    padding-left: 68px;
  }
  .flow-node {
    width: 46px;
    height: 46px;
    font-size: 19px;
  }
  .flow-item:not(:last-child)::after {
    top: 56px;
    left: 23px;
  }
  .section-head.center {
    margin-bottom: 40px;
  }
  .tools {
    grid-template-columns: repeat(5, 1fr);
    gap: 6px;
  }
  .tools li {
    font-size: 12px;
    padding: 12px 2px 9px;
  }
  .bento {
    grid-template-columns: 1fr;
    gap: 12px;
  }
  .tile {
    padding: 22px 22px 24px;
  }
  .tile h3 {
    margin-top: 10px;
    font-size: 18px;
  }
  .tile-hero {
    padding: 28px 0 0 24px;
  }
  .shot,
  .window,
  .tree {
    box-shadow:
      0 0 0 1px rgba(22, 44, 38, 0.07),
      0 16px 32px -12px rgba(22, 52, 44, 0.28);
  }
  .tile-hero .tile-copy {
    padding-right: 24px;
  }
  .download {
    padding-top: 88px;
  }
  .download-card {
    padding: 56px 20px 28px;
    border-radius: 22px;
  }
  .specs div {
    flex-basis: 50%;
    padding: 10px 12px;
  }
  .specs div + div {
    border-left: 0;
  }
  .install-col {
    padding: 28px 22px;
  }
  .faq-list summary {
    font-size: 16.5px;
    padding-right: 36px;
  }
  .faq-list details p {
    padding-right: 8px;
  }
  .tree pre {
    padding: 22px 20px 26px;
    font-size: 12.5px;
  }
  .footer-legal {
    margin-top: 32px;
  }
}