:root {
  
  --brand-1: #0ea5e9;
  --brand-2: #6366f1;
  --brand-gradient: linear-gradient(135deg, #0ea5e9 0%, #6366f1 100%);
  --brand-gradient-soft: linear-gradient(135deg, rgba(14, 165, 233, .12) 0%, rgba(99, 102, 241, .12) 100%);

  --bg: #f8fafc;
  --bg-elevated: #ffffff;
  --bg-subtle: #f1f5f9;
  --text: #0f172a;
  --text-secondary: #475569;
  --text-tertiary: #94a3b8;
  --border: #e2e8f0;
  --border-strong: #cbd5e1;

  --shadow-sm: 0 1px 2px rgba(15, 23, 42, .04), 0 1px 3px rgba(15, 23, 42, .06);
  --shadow-md: 0 4px 12px rgba(15, 23, 42, .06), 0 2px 4px rgba(15, 23, 42, .04);
  --shadow-lg: 0 12px 32px rgba(15, 23, 42, .10), 0 4px 8px rgba(15, 23, 42, .05);
  --shadow-brand: 0 8px 24px rgba(14, 165, 233, .28), 0 2px 8px rgba(99, 102, 241, .18);

  --nav-bg: rgba(248, 250, 252, .78);
  --hero-glow-1: rgba(14, 165, 233, .16);
  --hero-glow-2: rgba(99, 102, 241, .14);

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;

  --font: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
  --font-mono: "Cascadia Code", "JetBrains Mono", Consolas, monospace;

  --ease-out: cubic-bezier(.22, 1, .36, 1);
  --ease-spring: cubic-bezier(.34, 1.56, .64, 1);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0a0f1e;
    --bg-elevated: #111827;
    --bg-subtle: #16203a;
    --text: #e2e8f0;
    --text-secondary: #94a3b8;
    --text-tertiary: #64748b;
    --border: #1e293b;
    --border-strong: #334155;
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, .3);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, .35);
    --shadow-lg: 0 12px 32px rgba(0, 0, 0, .45);
    --shadow-brand: 0 8px 24px rgba(14, 165, 233, .22), 0 2px 8px rgba(99, 102, 241, .16);
    --nav-bg: rgba(10, 15, 30, .72);
    --hero-glow-1: rgba(14, 165, 233, .20);
    --hero-glow-2: rgba(99, 102, 241, .18);
    color-scheme: dark;
  }
}

:root[data-theme="dark"] {
  --bg: #0a0f1e;
  --bg-elevated: #111827;
  --bg-subtle: #16203a;
  --text: #e2e8f0;
  --text-secondary: #94a3b8;
  --text-tertiary: #64748b;
  --border: #1e293b;
  --border-strong: #334155;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, .3);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, .35);
  --shadow-lg: 0 12px 32px rgba(0, 0, 0, .45);
  --shadow-brand: 0 8px 24px rgba(14, 165, 233, .22), 0 2px 8px rgba(99, 102, 241, .16);
  --nav-bg: rgba(10, 15, 30, .72);
  --hero-glow-1: rgba(14, 165, 233, .20);
  --hero-glow-2: rgba(99, 102, 241, .18);
  color-scheme: dark;
}

:root[data-theme="light"] {
  color-scheme: light;
}

.page-loader {
  position: fixed;
  inset: 0;
  z-index: 999;
  display: grid;
  place-items: center;
  background: var(--bg);
  transition: opacity .5s ease, visibility .5s ease;
}

body.loaded .page-loader {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.loader-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 22px;
}

.loader-logo {
  width: 56px; height: 56px;
  border-radius: 14px;
  animation: loaderPop .7s var(--ease-spring) both;
}

@keyframes loaderPop {
  from { transform: scale(.55) translateY(10px); opacity: 0; }
  to { transform: scale(1) translateY(0); opacity: 1; }
}

.loader-bar {
  width: 120px; height: 3px;
  border-radius: 3px;
  background: var(--border);
  overflow: hidden;
}

.loader-bar i {
  display: block;
  height: 100%; width: 100%;
  border-radius: 3px;
  background: var(--brand-gradient);
  transform-origin: left center;
  animation: loaderFill .85s var(--ease-out) .1s both;
}

@keyframes loaderFill {
  from { transform: scaleX(0); }
  to { transform: scaleX(1); }
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 84px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  transition: background-color .35s ease, color .35s ease;
}

img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }

::selection { background: rgba(14, 165, 233, .25); }

.container {
  width: 100%;
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px;
}

.section { padding: 110px 0; }
.section-alt { background: var(--bg-elevated); }

.section-head {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 56px;
}

.section-tag {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .08em;
  padding: 5px 14px;
  border-radius: 999px;
  background: var(--brand-gradient-soft);
  color: var(--brand-1);
  margin-bottom: 16px;
}

.section-title {
  font-size: clamp(26px, 4vw, 36px);
  font-weight: 700;
  letter-spacing: -.02em;
  line-height: 1.3;
  position: relative;
  display: inline-block;
}

.section-title::after {
  content: "";
  display: block;
  width: 0;
  height: 3px;
  margin: 12px auto 0;
  border-radius: 3px;
  background: var(--brand-gradient);
  transition: width .8s var(--ease-out) .35s;
}

.section-head.visible .section-title::after { width: 56px; }

.section-sub {
  margin-top: 14px;
  color: var(--text-secondary);
  font-size: 16px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 15px;
  font-weight: 600;
  padding: 13px 28px;
  border-radius: 12px;
  transition: transform .25s var(--ease-spring), box-shadow .25s ease, background-color .25s ease;
  white-space: nowrap;
}

.btn:active { transform: translateY(0) scale(.97); }

.btn svg { width: 18px; height: 18px; }

.btn-primary {
  background: var(--brand-gradient);
  color: #fff;
  box-shadow: var(--shadow-brand);
  position: relative;
  overflow: hidden;
}

.btn-primary::after {
  content: "";
  position: absolute;
  top: 0; left: -80%;
  width: 50%; height: 100%;
  background: linear-gradient(105deg, transparent, rgba(255, 255, 255, .35), transparent);
  transform: skewX(-20deg);
  transition: left .6s ease;
}

.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 12px 32px rgba(14, 165, 233, .36); }
.btn-primary:hover::after { left: 130%; }
.btn-primary:active { transform: translateY(0); }

.btn-secondary {
  background: var(--bg-elevated);
  color: var(--text);
  border: 1px solid var(--border-strong);
  box-shadow: var(--shadow-sm);
}

.btn-secondary:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); border-color: var(--brand-1); }

.btn-sm { padding: 9px 20px; font-size: 14px; border-radius: 10px; }

.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: var(--nav-bg);
  backdrop-filter: blur(16px) saturate(1.4);
  -webkit-backdrop-filter: blur(16px) saturate(1.4);
  border-bottom: 1px solid transparent;
  transition: border-color .3s ease, box-shadow .3s ease;
}

.nav.scrolled { border-bottom-color: var(--border); box-shadow: var(--shadow-sm); }

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 18px;
  letter-spacing: -.01em;
}

.nav-logo .logo-mark { width: 30px; height: 30px; border-radius: 8px; }

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
  font-size: 14.5px;
  color: var(--text-secondary);
}

.nav-links a {
  position: relative;
  transition: color .2s ease;
  padding: 4px 0;
}

.nav-links a::after {
  content: "";
  position: absolute;
  left: 0; bottom: 0;
  width: 0; height: 2px;
  border-radius: 2px;
  background: var(--brand-gradient);
  transition: width .25s var(--ease-out);
}

.nav-links a:hover { color: var(--text); }
.nav-links a:hover::after { width: 100%; }

.nav-actions { display: flex; align-items: center; gap: 12px; }

.theme-toggle {
  width: 38px; height: 38px;
  border-radius: 10px;
  display: grid;
  place-items: center;
  color: var(--text-secondary);
  border: 1px solid transparent;
  transition: all .2s ease;
}

.theme-toggle:hover { background: var(--bg-subtle); color: var(--text); border-color: var(--border); }
.theme-toggle svg { width: 18px; height: 18px; }

.theme-toggle .icon-sun { display: none; }
:root[data-theme="dark"] .theme-toggle .icon-sun { display: block; }
:root[data-theme="dark"] .theme-toggle .icon-moon { display: none; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .theme-toggle .icon-sun { display: block; }
  :root:not([data-theme="light"]) .theme-toggle .icon-moon { display: none; }
}

.nav-burger {
  display: none;
  width: 40px; height: 40px;
  border-radius: 10px;
  place-items: center;
  color: var(--text);
}

.nav-burger svg { width: 22px; height: 22px; }

.mobile-menu {
  display: none;
  flex-direction: column;
  gap: 4px;
  padding: 12px 24px 20px;
  border-top: 1px solid var(--border);
  background: var(--nav-bg);
  backdrop-filter: blur(16px);
}

.mobile-menu a {
  padding: 12px 8px;
  border-radius: 10px;
  font-size: 15px;
  color: var(--text-secondary);
  transition: all .2s ease;
}

.mobile-menu a:hover { background: var(--bg-subtle); color: var(--text); }
.mobile-menu.open { display: flex; }

.hero {
  position: relative;
  padding: 168px 0 110px;
  overflow: hidden;
}

.hero-glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  pointer-events: none;
  z-index: 0;
}

.hero-glow-1 {
  width: 560px; height: 560px;
  top: -180px; left: -120px;
  background: var(--hero-glow-1);
  animation: glowFloat 14s ease-in-out infinite alternate;
}

.hero-glow-2 {
  width: 480px; height: 480px;
  bottom: -160px; right: -100px;
  background: var(--hero-glow-2);
  animation: glowFloat 18s ease-in-out infinite alternate-reverse;
}

@keyframes glowFloat {
  from { transform: translate(0, 0) scale(1); }
  to { transform: translate(60px, 40px) scale(1.12); }
}

.hero-inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  gap: 56px;
  align-items: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-secondary);
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  padding: 6px 14px;
  border-radius: 999px;
  box-shadow: var(--shadow-sm);
  margin-bottom: 22px;
}

.hero-badge .dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: #22c55e;
  box-shadow: 0 0 0 3px rgba(34, 197, 94, .2);
  animation: pulseDot 2.2s ease-in-out infinite;
}

@keyframes pulseDot {
  0%, 100% { box-shadow: 0 0 0 3px rgba(34, 197, 94, .2); }
  50% { box-shadow: 0 0 0 6px rgba(34, 197, 94, .08); }
}

.hero h1 {
  font-size: clamp(34px, 5.2vw, 52px);
  font-weight: 800;
  letter-spacing: -.03em;
  line-height: 1.22;
}

.hero h1 .grad {
  background: linear-gradient(120deg, #0ea5e9, #6366f1, #8b5cf6, #0ea5e9);
  background-size: 220% 100%;
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  animation: gradFlow 7s ease-in-out infinite;
}

@keyframes gradFlow {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}

.hero-sub {
  margin-top: 20px;
  font-size: 17px;
  color: var(--text-secondary);
  max-width: 480px;
}

.hero-cta {
  margin-top: 34px;
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.hero-demo-wrap {
  animation: demoFloat 6s ease-in-out infinite;
}

@keyframes demoFloat {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

.hero-demo {
  position: relative;
  border-radius: var(--radius-lg);
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  transform: perspective(1200px) rotateY(-4deg) rotateX(2deg);
  transition: transform .6s var(--ease-out);
}

.hero-demo-wrap:hover .hero-demo { transform: perspective(1200px) rotateY(0) rotateX(0); }

.demo-titlebar {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
  background: var(--bg-subtle);
}

.demo-titlebar i {
  width: 11px; height: 11px;
  border-radius: 50%;
  display: block;
}

.demo-titlebar i:nth-child(1) { background: #f87171; }
.demo-titlebar i:nth-child(2) { background: #fbbf24; }
.demo-titlebar i:nth-child(3) { background: #34d399; }

.demo-titlebar span {
  margin-left: 10px;
  font-size: 12px;
  color: var(--text-tertiary);
  font-family: var(--font-mono);
}

.demo-body { position: relative; padding: 28px 26px 34px; }

.demo-line {
  height: 12px;
  border-radius: 6px;
  background: var(--bg-subtle);
  margin-bottom: 14px;
}

.demo-line.en-text {
  height: auto;
  background: none;
  border-radius: 8px;
  padding: 10px 12px;
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.8;
  color: var(--text-secondary);
  border: 1px dashed transparent;
  position: relative;
}

.demo-line.short { width: 62%; }
.demo-line.shorter { width: 40%; }

.demo-highlight {
  position: absolute;
  inset: 0;
  border-radius: 8px;
  background: linear-gradient(90deg, rgba(14, 165, 233, .16), rgba(99, 102, 241, .16));
  border: 1.5px solid var(--brand-1);
  transform-origin: left center;
  animation: snipSweep 6s var(--ease-out) infinite;
}

@keyframes snipSweep {
  0%   { transform: scaleX(0); opacity: 0; }
  8%   { opacity: 1; }
  26%  { transform: scaleX(1); opacity: 1; }
  78%  { transform: scaleX(1); opacity: 1; }
  90%  { opacity: 0; }
  100% { transform: scaleX(1); opacity: 0; }
}

.demo-bubble {
  margin-top: 18px;
  display: inline-flex;
  align-items: flex-start;
  gap: 10px;
  background: var(--brand-gradient);
  color: #fff;
  padding: 12px 18px;
  border-radius: 14px 14px 14px 4px;
  font-size: 14px;
  line-height: 1.6;
  box-shadow: var(--shadow-brand);
  transform-origin: left bottom;
  animation: bubblePop 6s var(--ease-spring) infinite;
}

.demo-bubble svg { width: 16px; height: 16px; flex-shrink: 0; margin-top: 3px; }

@keyframes bubblePop {
  0%, 30%  { transform: scale(0) translateY(8px); opacity: 0; }
  38%      { transform: scale(1.05) translateY(0); opacity: 1; }
  44%      { transform: scale(1); }
  78%      { transform: scale(1); opacity: 1; }
  90%, 100%{ transform: scale(.9); opacity: 0; }
}

.demo-cursor {
  position: absolute;
  top: 64px; left: 30px;
  width: 14px; height: 14px;
  z-index: 2;
  color: var(--text);
  filter: drop-shadow(0 1px 2px rgba(0, 0, 0, .25));
  animation: cursorDrag 6s var(--ease-out) infinite;
  pointer-events: none;
}

@keyframes cursorDrag {
  0%      { transform: translate(0, 0) scale(1); opacity: 0; }
  5%      { opacity: 1; }
  8%      { transform: translate(0, 0) scale(.85); }        
  26%     { transform: translate(320px, 0) scale(.85); }    
  30%     { transform: translate(320px, 0) scale(1); }      
  72%     { transform: translate(320px, 0) scale(1); opacity: 1; }
  82%,100%{ transform: translate(320px, 0) scale(1); opacity: 0; }
}

.demo-bubble .bubble-text {
  display: inline-block;
  overflow: hidden;
  white-space: nowrap;
  max-width: 100%;
  animation: bubbleType 6s steps(18, end) infinite;
}

.demo-bubble .bubble-caret {
  display: inline-block;
  width: 2px; height: 1em;
  margin-left: 2px;
  background: rgba(255, 255, 255, .9);
  vertical-align: -2px;
  animation: caretBlink 6s steps(1) infinite;
}

@keyframes bubbleType {
  0%, 38%  { max-width: 0; }
  62%, 100%{ max-width: 100%; }
}

@keyframes caretBlink {
  0%, 38%  { opacity: 0; }
  40%, 46% { opacity: 1; }
  48%, 54% { opacity: 0; }
  56%, 62% { opacity: 1; }
  64%, 78% { opacity: 0; }
  100%     { opacity: 0; }
}

.demo-hotkey {
  position: absolute;
  top: 16px; right: 18px;
  font-size: 11.5px;
  font-family: var(--font-mono);
  color: var(--text-tertiary);
  background: var(--bg-subtle);
  border: 1px solid var(--border);
  padding: 4px 10px;
  border-radius: 8px;
  animation: hotkeyBlink 6s ease infinite;
}

@keyframes hotkeyBlink {
  0%, 6%   { color: var(--brand-1); border-color: var(--brand-1); }
  14%, 100%{ color: var(--text-tertiary); border-color: var(--border); }
}

.grid { display: grid; gap: 22px; }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }

.card {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 28px 26px;
  box-shadow: var(--shadow-sm);
  transition: transform .35s var(--ease-out), box-shadow .35s ease, border-color .35s ease;
}

.card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  border-color: var(--border-strong);
}

.card-icon {
  width: 46px; height: 46px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  background: var(--brand-gradient-soft);
  color: var(--brand-1);
  margin-bottom: 18px;
  transition: transform .35s var(--ease-spring);
}

.card:hover .card-icon { transform: scale(1.08) rotate(-3deg); }
.card-icon svg { width: 22px; height: 22px; }

.card h3 { font-size: 17px; font-weight: 700; margin-bottom: 8px; letter-spacing: -.01em; }
.card p { font-size: 14px; color: var(--text-secondary); line-height: 1.7; }

.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
  counter-reset: step;
  position: relative;
}

.step {
  position: relative;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 30px 26px;
  box-shadow: var(--shadow-sm);
  transition: transform .35s var(--ease-out), box-shadow .35s ease;
}

.step:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); }

.step-num {
  width: 40px; height: 40px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: var(--brand-gradient);
  color: #fff;
  font-weight: 700;
  font-size: 16px;
  margin-bottom: 18px;
  box-shadow: var(--shadow-brand);
  transform: scale(0);
  transition: transform .5s var(--ease-spring) .3s;
}

.step.visible .step-num { transform: scale(1); }

.step h3 { font-size: 17px; font-weight: 700; margin-bottom: 8px; }
.step p { font-size: 14px; color: var(--text-secondary); }

.step kbd {
  font-family: var(--font-mono);
  font-size: 12.5px;
  background: var(--bg-subtle);
  border: 1px solid var(--border-strong);
  border-bottom-width: 2px;
  border-radius: 6px;
  padding: 2px 8px;
  color: var(--text);
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 420px));
  gap: 26px;
  justify-content: center;
}

.price-card {
  position: relative;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px 32px;
  box-shadow: var(--shadow-md);
  transition: transform .35s var(--ease-out), box-shadow .35s ease;
  display: flex;
  flex-direction: column;
}

.price-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }

.price-card.featured {
  border: 1.5px solid transparent;
  background:
    linear-gradient(var(--bg-elevated), var(--bg-elevated)) padding-box,
    var(--brand-gradient) border-box;
}

.price-badge {
  position: absolute;
  top: -13px; left: 50%;
  transform: translateX(-50%);
  font-size: 12.5px;
  font-weight: 600;
  color: #fff;
  background: var(--brand-gradient);
  padding: 4px 16px;
  border-radius: 999px;
  box-shadow: var(--shadow-brand);
  white-space: nowrap;
}

.price-name { font-size: 16px; font-weight: 600; color: var(--text-secondary); }

.price-amount {
  margin: 14px 0 6px;
  font-size: 44px;
  font-weight: 800;
  letter-spacing: -.03em;
  line-height: 1;
}

.price-amount small {
  font-size: 15px;
  font-weight: 500;
  color: var(--text-tertiary);
  letter-spacing: 0;
}

.price-desc { font-size: 14px; color: var(--text-secondary); margin-bottom: 24px; }

.price-list { display: flex; flex-direction: column; gap: 12px; margin-bottom: 28px; flex: 1; }

.price-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 14px;
  color: var(--text-secondary);
}

.price-list li svg {
  width: 18px; height: 18px;
  flex-shrink: 0;
  color: var(--brand-1);
  margin-top: 2px;
}

.price-note {
  margin-top: 36px;
  text-align: center;
  font-size: 13.5px;
  color: var(--text-tertiary);
}

.price-note strong { color: var(--text-secondary); }

.compare-wrap {
  max-width: 760px;
  margin: 0 auto;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  overflow: hidden;
}

.compare-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14.5px;
}

.compare-table th,
.compare-table td {
  padding: 15px 20px;
  text-align: left;
  border-bottom: 1px solid var(--border);
}

.compare-table tr:last-child td { border-bottom: none; }

.compare-table thead th {
  font-size: 13px;
  letter-spacing: .04em;
  color: var(--text-tertiary);
  font-weight: 600;
  background: var(--bg-subtle);
}

.compare-table th.col-us,
.compare-table td.col-us {
  background: var(--brand-gradient-soft);
  color: var(--text);
  font-weight: 600;
}

.compare-table thead th.col-us { color: var(--brand-1); }

.compare-table td.col-rival { color: var(--text-secondary); }

.compare-table td .check {
  display: inline-flex;
  align-items: center;
  gap: 7px;
}

.compare-table td .check svg {
  width: 16px; height: 16px;
  color: var(--brand-1);
  flex-shrink: 0;
}

.compare-note {
  max-width: 760px;
  margin: 16px auto 0;
  text-align: center;
  font-size: 12.5px;
  color: var(--text-tertiary);
}

.compare-scroll { overflow-x: auto; -webkit-overflow-scrolling: touch; }
.compare-scroll .compare-table { min-width: 520px; }

.qq-copy {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  color: var(--text-secondary);
  cursor: pointer;
  transition: color .2s ease;
  padding: 0;
}

.qq-copy:hover { color: var(--brand-1); }
.qq-copy svg { width: 15px; height: 15px; }

.download-card {
  display: flex;
  flex-direction: column;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 34px 30px;
  box-shadow: var(--shadow-md);
  transition: transform .35s var(--ease-out), box-shadow .35s ease;
}

.download-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); }

.download-card.recommended { border-color: var(--brand-1); }

.download-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 6px;
}

.download-head h3 { font-size: 19px; font-weight: 700; }

.download-size {
  font-size: 12.5px;
  font-family: var(--font-mono);
  color: var(--text-tertiary);
  background: var(--bg-subtle);
  border: 1px solid var(--border);
  padding: 3px 10px;
  border-radius: 999px;
}

.download-for { font-size: 14px; color: var(--text-secondary); margin-bottom: 18px; flex: 1; }

.download-list { display: flex; flex-direction: column; gap: 8px; margin-bottom: 24px; }

.download-list li {
  font-size: 13.5px;
  color: var(--text-secondary);
  display: flex;
  gap: 8px;
  align-items: flex-start;
}

.download-list li::before {
  content: "·";
  color: var(--brand-1);
  font-weight: 700;
}

.download-single { max-width: 520px; margin: 0 auto; }

.faq-list { max-width: 760px; margin: 0 auto; display: flex; flex-direction: column; gap: 14px; }

.faq-item {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: border-color .25s ease, box-shadow .25s ease;
}

.faq-item.open { border-color: var(--border-strong); box-shadow: var(--shadow-md); }

.faq-q {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 24px;
  font-size: 15.5px;
  font-weight: 600;
  text-align: left;
  transition: color .2s ease;
}

.faq-q:hover { color: var(--brand-1); }

.faq-q svg {
  width: 18px; height: 18px;
  flex-shrink: 0;
  color: var(--text-tertiary);
  transition: transform .35s var(--ease-out);
}

.faq-item.open .faq-q svg { transform: rotate(45deg); color: var(--brand-1); }

.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height .4s var(--ease-out);
}

.faq-a-inner {
  padding: 0 24px 20px;
  font-size: 14.5px;
  color: var(--text-secondary);
  line-height: 1.8;
}

.trust-bar {
  display: flex;
  justify-content: center;
  gap: 40px;
  flex-wrap: wrap;
  padding: 26px 24px;
}

.trust-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: var(--text-secondary);
}

.trust-item svg { width: 18px; height: 18px; color: var(--brand-1); }

.footer {
  border-top: 1px solid var(--border);
  padding: 48px 0 32px;
  background: var(--bg-elevated);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 36px;
  margin-bottom: 40px;
}

.footer-brand p {
  margin-top: 12px;
  font-size: 13.5px;
  color: var(--text-tertiary);
  max-width: 260px;
}

.footer-col h4 {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .06em;
  color: var(--text-tertiary);
  text-transform: uppercase;
  margin-bottom: 14px;
}

.footer-col ul { display: flex; flex-direction: column; gap: 10px; }

.footer-col a {
  font-size: 14px;
  color: var(--text-secondary);
  transition: color .2s ease;
}

.footer-col a:hover { color: var(--brand-1); }

.footer-bottom {
  padding-top: 24px;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  font-size: 13px;
  color: var(--text-tertiary);
}

.page-hero {
  padding: 150px 0 56px;
  text-align: center;
}

.page-hero h1 {
  font-size: clamp(30px, 4.5vw, 42px);
  font-weight: 800;
  letter-spacing: -.02em;
}

.page-hero p { margin-top: 14px; color: var(--text-secondary); }

.prose {
  max-width: 760px;
  margin: 0 auto;
  padding-bottom: 96px;
}

.prose h2 {
  font-size: 22px;
  font-weight: 700;
  margin: 40px 0 14px;
  letter-spacing: -.01em;
}

.prose h3 { font-size: 17px; font-weight: 700; margin: 26px 0 10px; }
.prose p, .prose li { font-size: 15px; color: var(--text-secondary); line-height: 1.85; }
.prose ul, .prose ol { padding-left: 22px; margin: 12px 0; display: flex; flex-direction: column; gap: 8px; }
.prose ul li { list-style: disc; }
.prose ol li { list-style: decimal; }
.prose strong { color: var(--text); }
.prose a { color: var(--brand-1); text-decoration: underline; text-underline-offset: 3px; }

.release-card {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: var(--shadow-md);
  margin-bottom: 28px;
}

.release-head {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 18px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--border);
}

.release-version {
  font-size: 20px;
  font-weight: 800;
  font-family: var(--font-mono);
  background: var(--brand-gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.release-date { font-size: 13.5px; color: var(--text-tertiary); }

.release-tag {
  font-size: 12px;
  font-weight: 600;
  color: var(--brand-1);
  background: var(--brand-gradient-soft);
  padding: 3px 12px;
  border-radius: 999px;
}

.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity .7s var(--ease-out), transform .7s var(--ease-out);
  transition-delay: var(--reveal-delay, 0s);
  will-change: opacity, transform;
}

.reveal.visible { opacity: 1; transform: translateY(0); }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .hero-glow, .demo-highlight, .demo-bubble, .demo-hotkey, .hero-badge .dot,
  .hero-demo-wrap, .demo-cursor, .hero h1 .grad, .loader-logo, .loader-bar i { animation: none !important; }
  .demo-highlight { opacity: 1; transform: scaleX(1); }
  .demo-bubble { opacity: 1; transform: none; }
  .demo-bubble .bubble-text { max-width: 100%; }
  .demo-cursor, .demo-bubble .bubble-caret { display: none; }
  .section-title::after { width: 56px; transition: none; }
  .step-num { transform: scale(1); transition: none; }
  .page-loader { transition-duration: .15s; }
  .btn, .card, .step, .price-card, .download-card, .hero-demo { transition: none; }
}

@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: 1fr; max-width: 520px; margin: 0 auto; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 900px) {
  .hero-inner { grid-template-columns: 1fr; gap: 48px; }
  .hero { padding: 140px 0 80px; }
  .hero-sub { max-width: none; }
  .hero-demo-wrap { max-width: 560px; animation: none; }
  .hero-demo { transform: none; }
  .nav-links { display: none; }
  .nav-burger { display: grid; }
  .nav-actions .btn { display: none; }
  .pricing-grid { grid-template-columns: minmax(0, 480px); }
}

@media (max-width: 640px) {
  .section { padding: 64px 0; }
  .grid-4, .grid-3, .grid-2 { grid-template-columns: 1fr; }
  .hero { padding: 128px 0 64px; }
  .hero-cta .btn { flex: 1; justify-content: center; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .footer-bottom { justify-content: center; text-align: center; }
  .trust-bar { gap: 20px 28px; }
  .price-card, .download-card { padding: 28px 22px; }
}