:root {
  --paper: #f4f0e8;
  --paper-deep: #eae3d7;
  --ink: #18221c;
  --muted: #687069;
  --line: rgba(24, 34, 28, 0.14);
  --green: #0e4935;
  --green-soft: #dce8d7;
  --lime: #d6f159;
  --orange: #f07746;
  --white: #fffdf8;
  --shadow: 0 24px 80px rgba(22, 39, 29, 0.14);
  --serif: "Songti SC", "STSong", "SimSun", serif;
  --sans: "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: var(--sans);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: 0.16;
  z-index: 100;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 180 180' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.95' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.18'/%3E%3C/svg%3E");
  mix-blend-mode: multiply;
}

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

:focus-visible {
  outline: 3px solid var(--orange);
  outline-offset: 4px;
}

.skip-link {
  position: fixed;
  left: 1rem;
  top: -5rem;
  padding: 0.75rem 1rem;
  background: var(--ink);
  color: white;
  z-index: 1000;
  transition: top 0.2s;
}
.skip-link:focus { top: 1rem; }

.site-header {
  position: fixed;
  inset: 0 0 auto;
  height: 82px;
  z-index: 50;
  border-bottom: 1px solid transparent;
  transition: background 0.3s, border-color 0.3s, height 0.3s;
}

.site-header.scrolled {
  height: 70px;
  background: rgba(244, 240, 232, 0.84);
  border-color: var(--line);
  backdrop-filter: blur(18px);
}

.nav-shell {
  width: min(1240px, calc(100% - 64px));
  height: 100%;
  margin: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 800; }

.brand-mark {
  position: relative;
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  border-radius: 12px 12px 12px 4px;
  background: var(--green);
  color: var(--lime);
  transform: rotate(-4deg);
  box-shadow: 0 8px 18px rgba(14, 73, 53, 0.18);
}

.brand-mark span { font-family: var(--serif); font-size: 19px; font-weight: 800; transform: rotate(4deg); }
.brand-name { font-size: 20px; letter-spacing: 0.08em; }

.desktop-nav { display: flex; align-items: center; gap: 36px; margin-left: 80px; }
.desktop-nav a { position: relative; color: #485049; font-size: 14px; font-weight: 600; }
.desktop-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 100%;
  bottom: -7px;
  height: 2px;
  background: var(--green);
  transition: right 0.25s;
}
.desktop-nav a:hover::after { right: 0; }

.nav-actions { display: flex; align-items: center; gap: 18px; }
.account-link { color: var(--muted); font-size: 12px; font-weight: 700; transition: color .2s; }
.account-link:hover { color: var(--orange); }
.nav-download {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 11px 17px;
  border: 1px solid var(--ink);
  border-radius: 100px;
  font-size: 13px;
  font-weight: 700;
  transition: color 0.2s, background 0.2s, transform 0.2s;
}
.nav-download:hover { color: var(--paper); background: var(--ink); transform: translateY(-2px); }
.nav-download svg { width: 16px; fill: none; stroke: currentColor; stroke-width: 1.7; }
.menu-button { display: none; }
.mobile-nav { display: none; }

.hero {
  position: relative;
  min-height: 880px;
  padding: 166px max(32px, calc((100vw - 1240px) / 2)) 105px;
  display: grid;
  grid-template-columns: minmax(430px, 0.85fr) minmax(520px, 1.15fr);
  align-items: center;
  gap: 58px;
  overflow: hidden;
}

.hero-glow { position: absolute; border-radius: 50%; filter: blur(1px); opacity: 0.6; pointer-events: none; }
.hero-glow-one { width: 370px; height: 370px; left: -190px; top: 205px; background: radial-gradient(circle, rgba(214, 241, 89, .38), transparent 70%); }
.hero-glow-two { width: 500px; height: 500px; right: -270px; bottom: -160px; background: radial-gradient(circle, rgba(240, 119, 70, .19), transparent 70%); }

.hero-copy { position: relative; z-index: 3; padding-bottom: 25px; }
.eyebrow { display: flex; align-items: center; gap: 9px; margin-bottom: 28px; color: var(--green); font-size: 12px; font-weight: 700; letter-spacing: 0.12em; }
.eyebrow-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--orange); box-shadow: 0 0 0 5px rgba(240,119,70,.13); }
.hero h1 { margin: 0; font-family: var(--serif); font-size: clamp(64px, 7.2vw, 104px); line-height: 0.98; letter-spacing: -0.06em; font-weight: 800; }
.hero h1 em { position: relative; color: var(--green); font-style: normal; white-space: nowrap; }
.hero h1 em::after { content: ""; position: absolute; height: 12px; left: 3%; right: -3%; bottom: 4px; z-index: -1; background: var(--lime); border-radius: 50%; transform: rotate(-1.5deg); opacity: .85; }
.hero-lead { margin: 32px 0 0; color: #586159; font-size: 17px; line-height: 1.9; }
.release-scope { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 20px; }
.release-scope span { display: inline-flex; align-items: center; gap: 7px; padding: 7px 10px; border: 1px solid var(--line); border-radius: 100px; color: var(--muted); background: rgba(255,253,248,.52); font-size: 10px; }
.release-scope strong { color: var(--green); font-weight: 800; }
.release-scope span:first-child { border-color: transparent; background: var(--lime); }
.release-scope span:last-child strong { color: var(--orange); }
.hero-actions { display: flex; gap: 13px; margin-top: 38px; }
.button { min-height: 54px; padding: 0 23px; display: inline-flex; align-items: center; justify-content: center; gap: 13px; border-radius: 16px; border: 0; cursor: pointer; font-size: 15px; font-weight: 700; transition: transform .2s, box-shadow .2s, background .2s; }
.button:hover { transform: translateY(-3px); }
.button-primary { background: var(--green); color: white; box-shadow: 0 14px 26px rgba(14,73,53,.2); }
.button-primary:hover { box-shadow: 0 17px 32px rgba(14,73,53,.28); }
.button-primary svg { width: 20px; fill: none; stroke: var(--lime); stroke-width: 1.8; }
.button-ghost { background: rgba(255,253,248,.58); border: 1px solid var(--line); color: var(--ink); }
.button-ghost:hover { background: var(--white); }
.play-icon { width: 24px; height: 24px; display: grid; place-items: center; border: 1px solid var(--ink); border-radius: 50%; }
.play-icon::after { content: ""; margin-left: 2px; border-left: 6px solid var(--ink); border-top: 4px solid transparent; border-bottom: 4px solid transparent; }
.hero-meta { display: flex; align-items: center; gap: 12px; margin-top: 24px; color: #7c837d; font-size: 11px; font-weight: 600; }
.hero-meta i { width: 3px; height: 3px; background: #9da39e; border-radius: 50%; }

.hero-stage { position: relative; z-index: 2; min-width: 0; }
.desktop-scene { position: relative; width: 100%; aspect-ratio: 1.18; perspective: 1100px; }
.app-backdrop {
  position: absolute;
  inset: 8% 1% 13% 8%;
  border: 1px solid rgba(24,34,28,.1);
  border-radius: 24px;
  overflow: hidden;
  background: rgba(255,253,248,.66);
  box-shadow: 0 38px 100px rgba(30,45,35,.12);
  transform: rotateY(-5deg) rotateZ(1deg);
}
.backdrop-bar { height: 48px; display: flex; align-items: center; gap: 6px; padding: 0 18px; border-bottom: 1px solid rgba(24,34,28,.08); }
.backdrop-bar span { width: 8px; height: 8px; border: 1px solid rgba(24,34,28,.18); border-radius: 50%; }
.backdrop-content { height: calc(100% - 48px); display: grid; grid-template-columns: 28% 72%; }
.fake-sidebar { border-right: 1px solid rgba(24,34,28,.06); background: rgba(14,73,53,.025); }
.fake-document { padding: 50px 35px; }
.fake-document span { display: block; width: 88%; height: 6px; margin-bottom: 18px; border-radius: 5px; background: rgba(24,34,28,.08); }
.fake-document .fake-title { width: 51%; height: 14px; margin-bottom: 35px; background: rgba(24,34,28,.12); }
.fake-document span:nth-child(4) { width: 70%; }
.fake-document span:nth-child(6) { width: 57%; }

.floating-reader {
  position: absolute;
  width: 78%;
  left: 5%;
  top: 28%;
  overflow: hidden;
  border-radius: 22px;
  background: rgba(14,73,53,.96);
  color: white;
  box-shadow: 0 35px 90px rgba(12,55,40,.32), 0 0 0 1px rgba(255,255,255,.1) inset;
  transform: rotateY(2deg) rotateZ(-1.5deg);
  animation: reader-float 5s ease-in-out infinite;
  backdrop-filter: blur(16px);
}
.floating-reader.paused { animation-play-state: paused; }
.floating-reader.attention { animation: reader-attention .8s ease both, reader-float 5s ease-in-out .8s infinite; }
.reader-topbar { height: 50px; padding: 0 16px; display: flex; align-items: center; border-bottom: 1px solid rgba(255,255,255,.1); }
.reader-dots { display: flex; gap: 6px; }
.reader-dots span { width: 7px; height: 7px; border-radius: 50%; background: rgba(255,255,255,.2); }
.reader-dots span:first-child { background: var(--orange); }
.reader-status { display: flex; align-items: center; gap: 7px; margin: auto; font-size: 10px; letter-spacing: .1em; color: rgba(255,255,255,.62); }
.reader-status i { width: 5px; height: 5px; border-radius: 50%; background: var(--lime); box-shadow: 0 0 0 4px rgba(214,241,89,.1); }
.reader-topbar button { width: 28px; height: 28px; display: grid; place-items: center; padding: 0; color: rgba(255,255,255,.65); border: 0; border-radius: 50%; background: rgba(255,255,255,.08); cursor: pointer; }
.reader-topbar svg { width: 13px; fill: none; stroke: currentColor; stroke-width: 1.5; }
.reader-topbar .play-svg { display: none; fill: currentColor; stroke: none; }
.paused .reader-topbar .pause-svg { display: none; }
.paused .reader-topbar .play-svg { display: block; }
.reader-body { padding: 34px 42px 29px; }
.chapter-label { display: block; margin-bottom: 18px; color: var(--lime); font-size: 9px; letter-spacing: .18em; }
.reader-body p { margin: 0; font-family: var(--serif); font-size: clamp(16px, 1.65vw, 23px); line-height: 1.85; letter-spacing: .03em; }
.reader-body mark { color: inherit; background: linear-gradient(transparent 63%, rgba(214,241,89,.25) 0); }
.reader-footer { height: 48px; display: flex; align-items: center; gap: 12px; padding: 0 22px; border-top: 1px solid rgba(255,255,255,.1); }
.reader-footer button { padding: 0; color: rgba(255,255,255,.52); border: 0; background: none; font-size: 10px; }
.reader-range { position: relative; width: 70px; height: 2px; background: rgba(255,255,255,.18); }
.reader-range i { position: absolute; left: 0; top: 0; width: 54%; height: 100%; background: var(--lime); }
.reader-range i::after { content: ""; position: absolute; right: -3px; top: -2px; width: 6px; height: 6px; border-radius: 50%; background: var(--lime); }
.reader-page { margin-left: auto; color: rgba(255,255,255,.35); font-size: 9px; }

.floating-chip { position: absolute; display: flex; align-items: center; gap: 7px; padding: 10px 13px; border-radius: 100px; background: var(--white); border: 1px solid rgba(24,34,28,.1); box-shadow: 0 12px 28px rgba(28,42,33,.13); color: var(--green); font-size: 10px; font-weight: 700; }
.floating-chip svg { width: 16px; fill: none; stroke: currentColor; stroke-width: 1.5; }
.chip-pin { top: 19%; right: -2%; transform: rotate(5deg); }
.chip-opacity { bottom: 12%; left: 5%; transform: rotate(-3deg); }
.mini-sun { color: var(--orange); font-size: 15px; }
.product-mascot { position: absolute; z-index: 3; width: 112px; height: 112px; right: 1%; bottom: 4%; object-fit: contain; filter: drop-shadow(0 14px 20px rgba(25,44,34,.16)); transform: rotate(4deg); }
.stage-caption { margin: 2px 0 0; text-align: center; color: #8b918c; font-size: 10px; letter-spacing: .18em; }
.orbit { position: absolute; border: 1px solid rgba(14,73,53,.09); border-radius: 50%; pointer-events: none; }
.orbit-one { width: 600px; height: 600px; left: -80px; top: -80px; }
.orbit-two { width: 470px; height: 470px; left: -14px; top: -14px; border-style: dashed; }

.trust-strip { width: calc(100% + 40px); margin-left: -20px; overflow: hidden; border-block: 1px solid var(--line); background: var(--green); color: white; transform: rotate(-1.2deg); }
.marquee-track { width: max-content; display: flex; align-items: center; gap: 31px; padding: 15px 0; animation: marquee 26s linear infinite; }
.marquee-track span { font-family: var(--serif); font-size: 15px; letter-spacing: .14em; }
.marquee-track b { color: var(--lime); font-weight: 400; }

.section { width: min(1180px, calc(100% - 64px)); margin-inline: auto; padding: 140px 0; scroll-margin-top: 60px; }
.section-heading { display: grid; grid-template-columns: 1.3fr .7fr; gap: 80px; align-items: end; margin-bottom: 70px; }
.section-index { display: block; margin-bottom: 22px; color: var(--orange); font-size: 11px; font-weight: 700; letter-spacing: .17em; }
.section h2 { margin: 0; font-family: var(--serif); font-size: clamp(46px, 5.2vw, 72px); line-height: 1.08; letter-spacing: -.04em; }
.section-heading > p { max-width: 400px; margin: 0 0 6px; color: var(--muted); font-size: 15px; line-height: 1.9; }

.feature-grid { display: grid; grid-template-columns: 1.1fr .9fr; grid-template-rows: 320px 250px; gap: 18px; }
.feature-card { position: relative; overflow: hidden; padding: 34px; border: 1px solid rgba(24,34,28,.1); border-radius: 24px; background: rgba(255,253,248,.62); }
.feature-card::after { content: ""; position: absolute; inset: 0; box-shadow: inset 0 1px rgba(255,255,255,.7); pointer-events: none; }
.feature-wide { grid-row: 1 / 3; background: var(--green); color: white; }
.feature-tall { background: #e7dfd1; }
.feature-short { display: grid; grid-template-columns: 1fr 1.15fr; align-items: center; }
.feature-copy { position: relative; z-index: 2; max-width: 330px; }
.feature-number { display: block; margin-bottom: 26px; color: var(--orange); font-family: var(--serif); font-size: 13px; }
.feature-wide .feature-number { color: var(--lime); }
.feature-copy h3 { margin: 0 0 12px; font-family: var(--serif); font-size: 28px; letter-spacing: -.03em; }
.feature-copy p { margin: 0; color: var(--muted); font-size: 13px; line-height: 1.8; }
.feature-wide .feature-copy p { color: rgba(255,255,255,.55); }

.pin-visual { position: absolute; width: 72%; height: 60%; right: -6%; bottom: -5%; }
.window-stack { position: absolute; width: 72%; height: 66%; border-radius: 14px; border: 1px solid rgba(255,255,255,.14); }
.stack-three { right: 0; bottom: 22%; background: #1b5d47; transform: rotate(7deg); }
.stack-two { right: 12%; bottom: 11%; background: #286d55; transform: rotate(2deg); }
.stack-one { left: 0; bottom: 0; padding: 30px; background: #f5f0e7; color: var(--green); box-shadow: 0 24px 55px rgba(0,0,0,.18); transform: rotate(-5deg); }
.stack-one span { display: block; margin-bottom: 21px; font-family: var(--serif); font-size: clamp(13px,1.5vw,20px); }
.stack-one i { display: block; width: 88%; height: 5px; margin: 11px 0; border-radius: 4px; background: rgba(14,73,53,.12); }
.stack-one i:nth-child(3) { width: 71%; }
.pin-badge { position: absolute; top: 0; right: 7%; width: 54px; height: 54px; display: grid; place-items: center; color: var(--green); background: var(--lime); border-radius: 17px; box-shadow: 0 14px 30px rgba(0,0,0,.19); transform: rotate(7deg); }
.pin-badge svg { width: 26px; fill: none; stroke: currentColor; stroke-width: 1.6; }

.theme-visual { position: absolute; right: 28px; bottom: 27px; display: flex; align-items: flex-end; gap: 10px; }
.theme-card { width: 82px; height: 105px; display: flex; flex-direction: column; justify-content: space-between; padding: 12px; border-radius: 12px; box-shadow: 0 12px 30px rgba(40,35,27,.09); transform-origin: bottom; transition: transform .3s; }
.feature-tall:hover .theme-card:nth-child(1) { transform: rotate(-4deg) translateY(-5px); }
.feature-tall:hover .theme-card:nth-child(2) { transform: translateY(-10px); }
.feature-tall:hover .theme-card:nth-child(3) { transform: rotate(4deg) translateY(-5px); }
.theme-card span { font-size: 8px; opacity: .55; }
.theme-card b { font-family: var(--serif); font-size: 30px; font-weight: 500; }
.theme-paper { background: #fffaf0; }
.theme-night { color: white; background: #17251f; }
.theme-mint { background: #cfe1d5; }
.size-control { position: absolute; left: 6px; right: 6px; bottom: -19px; display: flex; align-items: center; gap: 8px; padding: 7px 11px; border-radius: 100px; background: white; box-shadow: 0 8px 18px rgba(0,0,0,.09); font-size: 8px; }
.size-control strong { font-size: 12px; }
.size-control i { position: relative; flex: 1; height: 2px; background: #d5d5d2; }
.size-control b { position: absolute; left: 58%; top: -2px; width: 6px; height: 6px; border-radius: 50%; background: var(--orange); }

.shortcut-visual { display: flex; align-items: center; justify-content: flex-end; gap: 7px; }
.shortcut-visual kbd { min-width: 45px; height: 45px; padding: 0 11px; display: grid; place-items: center; border: 1px solid rgba(24,34,28,.16); border-bottom-width: 3px; border-radius: 11px; background: white; color: var(--green); font-family: var(--sans); font-size: 11px; font-weight: 700; box-shadow: 0 7px 16px rgba(24,34,28,.06); }
.shortcut-visual span { color: #929891; font-size: 12px; }

.scenes { width: 100%; max-width: none; padding-inline: max(32px, calc((100vw - 1180px) / 2)); background: #e9e3d9; }
.scene-heading { align-items: center; }
.feature-preview { margin-top: 24px; padding: clamp(24px, 4vw, 44px); border: 1px solid var(--line); border-radius: 24px; background: var(--white); }
.preview-badge { display: inline-block; padding: 6px 12px; border-radius: 100px; color: var(--green); background: var(--green-soft); font-size: 11px; font-weight: 700; }
.feature-preview-heading h3 { margin: 18px 0 10px; font: 700 clamp(24px, 3vw, 34px) var(--serif); }
.feature-preview p { margin: 0; color: var(--muted); font-size: 13px; line-height: 1.9; }
.feature-preview-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 32px; margin-top: 28px; padding-top: 28px; border-top: 1px solid var(--line); }
.preview-label { color: var(--green); font-size: 11px; font-weight: 800; }
.feature-preview h4 { margin: 10px 0 12px; font-size: 17px; line-height: 1.6; }
.feature-preview .preview-note { margin-top: 14px; font-size: 12px; }
.scene-tabs { display: flex; flex-wrap: wrap; gap: 8px; justify-content: flex-end; }
.scene-tabs button { padding: 10px 15px; border: 1px solid rgba(24,34,28,.14); border-radius: 100px; background: transparent; color: var(--muted); cursor: pointer; font-size: 12px; transition: .2s; }
.scene-tabs button.active, .scene-tabs button:hover { color: white; border-color: var(--green); background: var(--green); }
.scene-showcase { min-height: 520px; display: grid; grid-template-columns: .75fr 1.25fr; overflow: hidden; border-radius: 26px; background: var(--green); color: white; box-shadow: var(--shadow); }
.scene-copy { display: flex; flex-direction: column; padding: 58px 48px; transition: opacity .18s, transform .18s; }
.scene-copy > span { color: var(--lime); font-size: 9px; font-weight: 700; letter-spacing: .18em; }
.scene-copy h3 { margin: auto 0 22px; font-family: var(--serif); font-size: clamp(35px,4vw,54px); line-height: 1.18; font-weight: 700; }
.scene-copy p { margin: 0; color: rgba(255,255,255,.56); font-size: 13px; line-height: 1.8; }
.scene-progress { display: flex; gap: 8px; margin-top: 42px; }
.scene-progress i { width: 18px; height: 2px; background: rgba(255,255,255,.25); transition: background .2s, width .2s; }
.scene-progress i.active { width: 36px; background: var(--lime); }
.scene-canvas { position: relative; overflow: hidden; margin: 18px; border-radius: 18px; background: #f2ede3; transition: opacity .18s, transform .18s; }
.scene-editor { position: absolute; inset: 13% 9%; padding: 55px 45px; border-radius: 15px; background: rgba(255,255,255,.72); border: 1px solid rgba(24,34,28,.08); }
.scene-editor > span { display: block; width: 74%; height: 7px; margin-bottom: 20px; border-radius: 4px; background: rgba(24,34,28,.08); }
.scene-editor .editor-heading { width: 42%; height: 14px; margin-bottom: 37px; background: rgba(24,34,28,.15); }
.scene-editor span:nth-child(4) { width: 88%; }
.scene-editor span:nth-child(6) { width: 54%; }
.editor-cursor { width: 2px; height: 19px; margin-left: 58%; background: var(--orange); animation: blink 1s step-end infinite; }
.scene-reader-card { position: absolute; width: 63%; right: 5%; bottom: 7%; padding: 30px 34px; color: white; border-radius: 17px; background: rgba(14,73,53,.95); box-shadow: 0 24px 48px rgba(14,73,53,.24); transform: rotate(-2deg); }
.quote-mark { position: absolute; top: 5px; left: 16px; color: var(--lime); font-family: Georgia, serif; font-size: 45px; opacity: .65; }
.scene-reader-card p { min-height: 70px; margin: 13px 0 15px; font-family: Georgia, var(--serif); font-size: clamp(14px,1.4vw,19px); line-height: 1.55; }
.quote-source { color: rgba(255,255,255,.45); font-size: 9px; }
.scene-showcase.changing .scene-copy, .scene-showcase.changing .scene-canvas { opacity: 0; transform: translateY(6px); }

.download-section { width: min(1240px, calc(100% - 64px)); }
.pricing-section { width: min(1240px, calc(100% - 64px)); }
.pricing-panel { display: grid; grid-template-columns: 1.15fr .85fr; overflow: hidden; border-radius: 30px; color: white; background: var(--green); box-shadow: var(--shadow); }
.pricing-intro { position: relative; display: flex; flex-direction: column; justify-content: center; min-height: 580px; padding: 70px; overflow: hidden; }
.pricing-intro::after { content: ""; position: absolute; width: 440px; height: 440px; left: -170px; bottom: -260px; border: 1px dashed rgba(214,241,89,.18); border-radius: 50%; }
.pricing-intro .section-index { color: var(--lime); }
.pricing-intro h2 { font-size: clamp(52px,5.6vw,76px); }
.pricing-intro p { max-width: 500px; margin: 28px 0 0; color: rgba(255,255,255,.55); font-size: 14px; line-height: 1.9; }
.pricing-card { position: relative; margin: 18px; padding: 55px 48px; border-radius: 22px; color: var(--ink); background: var(--white); }
.pricing-badge { display: inline-flex; padding: 6px 10px; border-radius: 100px; color: var(--green); background: var(--lime); font-size: 9px; font-weight: 800; letter-spacing: .12em; }
.pricing-card h3 { margin: 25px 0 18px; font: 700 28px var(--serif); }
.plan-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 9px; padding-bottom: 25px; border-bottom: 1px solid var(--line); }
.plan-chip { position: relative; min-width: 0; padding: 13px 14px; display: flex; flex-direction: column; gap: 4px; border: 1px solid var(--line); border-radius: 12px; background: #faf9f5; }
.plan-chip strong { color: var(--ink); font: 700 15px var(--serif); }
.plan-chip span { color: var(--muted); font-size: 9px; }
.plan-chip em { position: absolute; top: 13px; right: 14px; color: var(--green); font: 700 13px var(--serif); font-style: normal; }
.plan-chip-trial { grid-column: 1 / -1; border-color: rgba(14,73,53,.18); background: #edf3e9; }
.plan-chip-lifetime { grid-column: 1 / -1; border-color: rgba(214,241,89,.8); background: rgba(214,241,89,.18); }
.pricing-card ul { margin: 28px 0 34px; padding: 0; list-style: none; }
.pricing-card li { position: relative; margin: 15px 0; padding-left: 22px; color: var(--muted); font-size: 12px; }
.pricing-card li::before { content: "✓"; position: absolute; left: 0; color: var(--green); font-weight: 800; }
.pricing-button { width: 100%; }
.pricing-card > p { margin: 14px 0 0; color: #959b96; text-align: center; font-size: 8px; }
.download-panel { position: relative; min-height: 560px; display: grid; grid-template-columns: .95fr 1.05fr; overflow: hidden; border-radius: 30px; background: #e1eddb; }
.download-copy { display: flex; flex-direction: column; justify-content: center; padding: 70px; }
.download-copy h2 { font-size: clamp(48px,5vw,68px); }
.download-copy > p { margin: 25px 0 0; color: var(--muted); font-size: 14px; }
.download-buttons { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-top: 35px; }
.platform-button { min-width: 0; padding: 13px 18px; display: flex; align-items: center; gap: 13px; color: white; background: var(--green); border-radius: 15px; transition: transform .2s, box-shadow .2s; }
.platform-button:last-child { grid-column: 1 / -1; }
.platform-button:hover { transform: translateY(-3px); box-shadow: 0 14px 28px rgba(14,73,53,.2); }
.platform-button[aria-disabled="true"] { cursor: not-allowed; opacity: .46; }
.platform-button[aria-disabled="true"]:hover { transform: none; box-shadow: none; }
.platform-button svg { width: 25px; fill: var(--lime); }
.platform-button span { display: flex; flex-direction: column; }
.platform-button small { color: rgba(255,255,255,.55); font-size: 8px; }
.platform-button strong { font-size: 15px; }
.platform-button em { margin-top: 3px; color: rgba(255,255,255,.5); font-size: 8px; font-style: normal; }
.download-copy .version-note { margin-top: 13px; font-size: 10px; }
.download-security { display: grid; gap: 5px; margin-top: 9px; color: var(--muted); font-size: 8px; }
.download-security code { overflow-wrap: anywhere; font-size: 8px; }
.download-art { position: relative; overflow: hidden; display: grid; place-items: center; background: var(--green); }
.download-art::after { content: "浮读 · FUDU · 浮读 · FUDU ·"; position: absolute; width: 110%; bottom: 29px; color: rgba(255,255,255,.08); font-family: var(--serif); font-size: 35px; white-space: nowrap; transform: rotate(-7deg); }
.download-logo { position: relative; z-index: 2; width: 250px; height: 250px; display: grid; place-items: center; }
.download-logo img { width: 100%; height: 100%; object-fit: contain; filter: drop-shadow(0 30px 48px rgba(0,0,0,.24)); }
.download-ring { position: absolute; border: 1px solid rgba(214,241,89,.16); border-radius: 50%; }
.ring-one { width: 390px; height: 390px; }
.ring-two { width: 520px; height: 520px; border-style: dashed; animation: slow-spin 35s linear infinite; }
.spark { position: absolute; z-index: 3; color: var(--lime); }
.spark-one { left: 16%; top: 18%; font-size: 24px; }
.spark-two { right: 18%; bottom: 23%; font-size: 13px; }

.updates { padding-top: 30px; }
.release-list { border-top: 1px solid var(--line); }
.release-item { display: grid; grid-template-columns: .36fr .64fr; gap: 60px; padding: 40px 0 44px; border-bottom: 1px solid var(--line); }
.release-version { display: flex; align-items: flex-start; gap: 12px; font-family: var(--serif); font-size: 28px; }
.release-version b { padding: 5px 8px; color: var(--green); background: var(--lime); border-radius: 100px; font-family: var(--sans); font-size: 8px; letter-spacing: .1em; }
.release-title { display: flex; align-items: baseline; justify-content: space-between; gap: 20px; }
.release-title h3 { margin: 0; font-family: var(--serif); font-size: 24px; }
.release-title time { color: #939993; font-size: 10px; }
.release-details ul { margin: 22px 0 0; padding: 0; list-style: none; }
.release-details li { position: relative; margin: 10px 0; padding-left: 16px; color: var(--muted); font-size: 13px; }
.release-details li::before { content: ""; position: absolute; left: 0; top: .58em; width: 5px; height: 5px; border-radius: 50%; background: var(--orange); }
.empty-release { padding: 40px 0; color: var(--muted); }

.faq { display: grid; grid-template-columns: .72fr 1.28fr; gap: 100px; border-top: 1px solid var(--line); }
.faq-intro { position: sticky; top: 110px; align-self: start; }
.faq-intro h2 { font-size: clamp(42px,4.5vw,62px); }
.faq-intro p { margin-top: 25px; color: var(--muted); font-size: 12px; }
.faq-intro a { color: var(--green); border-bottom: 1px solid; }
.faq-list { border-top: 1px solid var(--line); }
.faq-list details { border-bottom: 1px solid var(--line); }
.faq-list summary { position: relative; padding: 27px 45px 27px 0; cursor: pointer; list-style: none; font-family: var(--serif); font-size: 19px; font-weight: 700; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary span, .faq-list summary span::after { position: absolute; right: 5px; top: 50%; width: 14px; height: 1px; background: var(--ink); transition: transform .25s; }
.faq-list summary span::after { content: ""; right: 0; top: 0; transform: rotate(90deg); }
.faq-list details[open] summary span::after { transform: rotate(0); }
.faq-list details p { max-width: 620px; margin: -5px 0 28px; color: var(--muted); font-size: 13px; line-height: 1.8; }
.faq-answer { max-width: 620px; margin: -5px 0 28px; color: var(--muted); font-size: 13px; line-height: 1.8; }
.faq-answer > p { margin: 0; color: inherit; font-size: inherit; line-height: inherit; }
.faq-mac-note { margin-top: 18px; padding: 18px; border: 1px solid rgba(207, 87, 48, .2); border-radius: 14px; background: rgba(255, 255, 255, .42); }
.faq-mac-note strong { display: block; color: var(--ink); font-size: 13px; }
.faq-mac-note p { max-width: none; margin: 7px 0 0; color: var(--muted); font-size: 12px; line-height: 1.75; }
.faq-command { display: flex; align-items: center; gap: 10px; margin-top: 13px; padding: 10px 10px 10px 13px; border-radius: 10px; background: var(--ink); }
.faq-command code { min-width: 0; flex: 1; overflow-x: auto; color: #fff; font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace; font-size: 11px; line-height: 1.5; white-space: nowrap; scrollbar-width: thin; }
.faq-command button { flex: none; padding: 7px 10px; border: 0; border-radius: 7px; color: var(--ink); background: var(--lime); cursor: pointer; font: 700 10px/1 var(--sans); }
.faq-command button:hover { background: #fff; }
.faq-mac-note .faq-command-tip { margin-top: 8px; color: var(--green); }

.site-footer { color: rgba(255,255,255,.7); background: #10251c; }
.footer-top, .footer-bottom { width: min(1180px, calc(100% - 64px)); margin: auto; }
.footer-top { min-height: 230px; display: grid; grid-template-columns: 1fr 2fr 1fr; align-items: center; border-bottom: 1px solid rgba(255,255,255,.1); }
.footer-brand { color: white; }
.footer-brand .brand-mark { background: var(--lime); color: var(--green); }
.footer-top > p { text-align: center; font-family: var(--serif); font-size: 20px; letter-spacing: .05em; }
.back-top { width: 47px; height: 47px; display: grid; place-items: center; justify-self: end; border: 1px solid rgba(255,255,255,.2); border-radius: 50%; transition: color .2s, border-color .2s, transform .2s; }
.back-top:hover { color: var(--lime); border-color: var(--lime); transform: translateY(-4px); }
.back-top svg { width: 18px; fill: none; stroke: currentColor; stroke-width: 1.5; }
.footer-bottom { min-height: 85px; display: flex; align-items: center; justify-content: space-between; color: rgba(255,255,255,.35); font-size: 10px; }
.footer-bottom div { display: flex; gap: 24px; }
.footer-bottom a:hover { color: white; }

.contact-dialog { width: min(520px, calc(100% - 32px)); padding: 34px; color: var(--ink); background: rgba(255,253,248,.98); border: 1px solid rgba(33,57,45,.16); border-radius: 28px; box-shadow: 0 28px 90px rgba(10,28,20,.28); }
.contact-dialog::backdrop { background: rgba(8,24,17,.58); backdrop-filter: blur(8px); }
.contact-dialog h2 { margin: 12px 36px 10px 0; font-family: var(--serif); font-size: clamp(26px, 5vw, 38px); line-height: 1.15; }
.contact-dialog > p { margin: 0 0 24px; color: var(--muted); line-height: 1.75; }
.contact-close { position: absolute; top: 18px; right: 20px; width: 36px; height: 36px; color: var(--ink); background: rgba(33,57,45,.07); border: 0; border-radius: 50%; font-size: 24px; line-height: 1; cursor: pointer; }
.contact-close:hover { background: rgba(33,57,45,.13); }
.contact-methods { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
.contact-method { padding: 18px; text-align: left; color: var(--ink); background: white; border: 1px solid rgba(33,57,45,.12); border-radius: 18px; cursor: pointer; transition: transform .2s, border-color .2s, box-shadow .2s; }
.contact-method:hover { transform: translateY(-2px); border-color: rgba(33,57,45,.28); box-shadow: 0 12px 30px rgba(24,54,39,.09); }
.contact-method small, .contact-method span { display: block; color: var(--muted); font-size: 11px; }
.contact-method strong { display: block; margin: 8px 0 12px; font-size: 16px; overflow-wrap: anywhere; }

.toast { position: fixed; left: 50%; bottom: 28px; z-index: 100; padding: 12px 20px; color: white; background: rgba(16,37,28,.94); border: 1px solid rgba(255,255,255,.12); border-radius: 100px; box-shadow: 0 14px 45px rgba(0,0,0,.22); font-size: 12px; opacity: 0; transform: translate(-50%, 20px); pointer-events: none; transition: opacity .25s, transform .25s; }
.toast.show { opacity: 1; transform: translate(-50%, 0); }

.reveal { opacity: 0; transform: translateY(22px); transition: opacity .8s ease, transform .8s ease; }
.reveal-late { transition-delay: .14s; }
.reveal.visible { opacity: 1; transform: translateY(0); }

@keyframes reader-float { 0%,100% { transform: rotateY(2deg) rotateZ(-1.5deg) translateY(0); } 50% { transform: rotateY(2deg) rotateZ(-1deg) translateY(-8px); } }
@keyframes reader-attention { 0%,100% { scale: 1; } 50% { scale: 1.035; } }
@keyframes marquee { to { transform: translateX(-50%); } }
@keyframes blink { 50% { opacity: 0; } }
@keyframes slow-spin { to { transform: rotate(360deg); } }

@media (max-width: 1050px) {
  .desktop-nav { display: none; }
  .hero { min-height: auto; grid-template-columns: 1fr; padding-top: 145px; }
  .hero-copy { max-width: 660px; }
  .hero-stage { width: min(760px, 100%); margin: 0 auto; }
  .feature-grid { grid-template-columns: 1fr 1fr; grid-template-rows: 530px 270px; }
  .feature-wide { grid-column: 1 / 3; grid-row: auto; }
  .feature-tall { grid-column: auto; }
  .feature-short { display: block; }
  .shortcut-visual { justify-content: flex-start; margin-top: 45px; }
  .scene-showcase { grid-template-columns: .8fr 1.2fr; }
  .download-panel { grid-template-columns: .85fr 1.15fr; }
  .download-copy { padding: 50px 40px; }
  .download-buttons { flex-direction: column; align-items: flex-start; }
}

@media (max-width: 760px) {
  .feature-preview-grid { grid-template-columns: 1fr; gap: 24px; }
  .contact-dialog { padding: 30px 20px 22px; border-radius: 22px; }
  .contact-methods { grid-template-columns: 1fr; }
  .site-header { height: 70px; }
  .nav-shell { width: calc(100% - 36px); }
  .brand-mark { width: 34px; height: 34px; }
  .brand-name { font-size: 18px; }
  .nav-download { display: none; }
  .account-link { display: none; }
  .menu-button { width: 38px; height: 38px; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 6px; border: 1px solid var(--line); border-radius: 50%; background: rgba(255,255,255,.4); }
  .menu-button span { width: 15px; height: 1px; background: var(--ink); transition: transform .25s; }
  .menu-button[aria-expanded="true"] span:first-child { transform: translateY(3.5px) rotate(45deg); }
  .menu-button[aria-expanded="true"] span:last-child { transform: translateY(-3.5px) rotate(-45deg); }
  .mobile-nav { position: fixed; top: 70px; left: 0; right: 0; display: grid; padding: 15px 24px 28px; background: rgba(244,240,232,.97); border-bottom: 1px solid var(--line); opacity: 0; transform: translateY(-14px); pointer-events: none; transition: .25s; }
  .mobile-nav.open { opacity: 1; transform: translateY(0); pointer-events: auto; }
  .mobile-nav a { padding: 14px 0; border-bottom: 1px solid var(--line); font-family: var(--serif); font-size: 20px; }
  .hero { display: block; padding: 125px 20px 75px; }
  .hero-copy { width: calc(100vw - 40px); max-width: calc(100vw - 40px); min-width: 0; }
  .hero h1 { font-size: clamp(55px, 16.5vw, 72px); }
  .hero-lead { width: calc(100vw - 40px); max-width: calc(100vw - 40px); font-size: 15px; overflow-wrap: anywhere; }
  .desktop-break { display: none; }
  .hero-actions { width: calc(100vw - 40px); max-width: calc(100vw - 40px); flex-direction: column; align-items: stretch; }
  .button { width: calc(100vw - 40px); max-width: calc(100vw - 40px); }
  .hero-meta { justify-content: center; }
  .hero-stage { margin-top: 65px; }
  .desktop-scene { aspect-ratio: .94; }
  .app-backdrop { inset: 4% 0 17%; }
  .floating-reader { width: 94%; left: 1%; top: 27%; }
  .reader-body { padding: 27px 25px 25px; }
  .reader-body p { font-size: 16px; }
  .chip-pin { top: 13%; right: 1%; }
  .chip-opacity { bottom: 13%; left: 0; }
  .product-mascot { width: 76px; height: 76px; right: -2%; bottom: 2%; }
  .orbit-one { width: 430px; height: 430px; }
  .orbit-two { width: 330px; height: 330px; }
  .section { width: calc(100% - 40px); padding: 90px 0; }
  .section-heading { grid-template-columns: 1fr; gap: 25px; margin-bottom: 45px; }
  .section h2 { font-size: 45px; }
  .feature-grid { display: flex; flex-direction: column; }
  .feature-card { min-height: 390px; padding: 27px; }
  .feature-short { min-height: 270px; }
  .pin-visual { width: 91%; height: 55%; }
  .theme-visual { left: 25px; right: auto; }
  .scenes { width: 100%; padding-inline: 20px; }
  .scene-tabs { justify-content: flex-start; }
  .scene-showcase { display: flex; flex-direction: column; min-height: 760px; }
  .scene-copy { min-height: 340px; padding: 35px 28px; }
  .scene-copy h3 { margin-top: 60px; }
  .scene-canvas { flex: 1; min-height: 390px; }
  .scene-reader-card { width: 80%; }
  .download-section { width: calc(100% - 40px); }
  .pricing-section { width: calc(100% - 40px); }
  .pricing-panel { grid-template-columns: 1fr; }
  .pricing-intro { min-height: 430px; padding: 48px 28px; }
  .pricing-card { margin: 0; padding: 43px 27px; border-radius: 0; }
  .download-panel { grid-template-columns: 1fr; }
  .download-art { min-height: 360px; }
  .download-copy { padding: 50px 25px; }
  .download-buttons { width: 100%; }
  .download-buttons { grid-template-columns: 1fr; }
  .platform-button:last-child { grid-column: auto; }
  .platform-button { width: 100%; }
  .release-item { grid-template-columns: 1fr; gap: 25px; }
  .release-title { align-items: flex-start; flex-direction: column; gap: 8px; }
  .faq { grid-template-columns: 1fr; gap: 55px; }
  .faq-intro { position: static; }
  .footer-top, .footer-bottom { width: calc(100% - 40px); }
  .footer-top { padding: 60px 0 45px; grid-template-columns: 1fr auto; gap: 40px; }
  .footer-top > p { grid-column: 1 / 3; grid-row: 2; text-align: left; }
  .footer-bottom { padding: 25px 0; flex-direction: column; align-items: flex-start; gap: 18px; }
  .footer-bottom div { flex-wrap: wrap; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
}