:root {
  --primary: #07c160;
  --primary-bright: #3ddc84;
  --primary-dark: #059c4b;
  --primary-deep: #047a3c;
  --accent: #2aae67;
  --bg: #f4faf6;
  --bg-soft: #e8f7ee;
  --bg-hero: #0d3d28;
  --card-bg: #ffffff;
  --text-main: #0f1419;
  --text-sub: #3d4f56;
  --text-grey: #6b7c85;
  --text-on-dark: rgba(255, 255, 255, 0.88);
  --text-on-dark-muted: rgba(255, 255, 255, 0.62);
  --link: #1a7fdb;
  --shadow: 0 4px 24px rgba(7, 193, 96, 0.1);
  --shadow-lg: 0 20px 60px rgba(13, 61, 40, 0.18);
  --radius: 16px;
  --radius-lg: 24px;
  /* 整站内容区宽度（较常见 1140 收窄一档，布局更紧凑整齐） */
  --max: 960px;
  --content-wide: 840px;
  --content-mid: 720px;
  --content-narrow: 600px;
  --header-h: 64px;
  --section-y: 56px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font: 15px/1.7 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial,
    "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  color: var(--text-main);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: var(--link);
  transition: color 0.2s;
}

.container {
  width: 94%;
  max-width: 960px;
  margin: 0 auto;
}

/* —— Reveal animation —— */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.65s ease, transform 0.65s ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: none;
}

.reveal-delay-1 { transition-delay: 0.08s; }
.reveal-delay-2 { transition-delay: 0.16s; }
.reveal-delay-3 { transition-delay: 0.24s; }

/* —— Header —— */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--header-h);
  background: transparent;
  transition: background 0.3s, box-shadow 0.3s, backdrop-filter 0.3s;
}

.site-header.is-scrolled {
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(16px);
  box-shadow: 0 1px 0 rgba(7, 193, 96, 0.1);
}

.site-header.is-scrolled .brand-text strong,
.site-header.is-scrolled .nav a:not(.nav-cta) {
  color: var(--text-sub);
}

.site-header.is-scrolled .brand-text span {
  color: var(--text-grey);
}

.site-header .brand-text strong,
.site-header .brand-text span {
  transition: color 0.3s;
}

body.has-hero-header .site-header:not(.is-scrolled) .brand-text strong {
  color: #fff;
}

body.has-hero-header .site-header:not(.is-scrolled) .brand-text span {
  color: var(--text-on-dark-muted);
}

body.has-hero-header .site-header:not(.is-scrolled) .nav a:not(.nav-cta) {
  color: var(--text-on-dark);
}

body.has-hero-header .site-header:not(.is-scrolled) .menu-toggle {
  background: rgba(255, 255, 255, 0.15);
  color: #fff;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  height: var(--header-h);
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: inherit;
}

.brand-icon {
  width: 42px;
  height: 42px;
  border-radius: 12px;
}

.brand-text strong {
  display: block;
  font-size: 16px;
  font-weight: 700;
}

.brand-text span,
.brand-slogan {
  display: block;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.08em;
  line-height: 1.4;
  opacity: 0.88;
}

.brand-slogan {
  margin-top: 1px;
  font-style: normal;
}

.nav {
  display: flex;
  align-items: center;
  gap: 2px;
}

.nav a {
  text-decoration: none;
  font-size: 14px;
  padding: 8px 12px;
  border-radius: 8px;
  transition: background 0.2s, color 0.2s;
}

.nav a:hover,
.nav a.is-active {
  background: rgba(7, 193, 96, 0.12);
  color: var(--primary-dark);
}

.nav-cta {
  position: relative;
  overflow: hidden;
  background: linear-gradient(135deg, var(--primary-bright), var(--primary)) !important;
  color: #fff !important;
  font-weight: 600;
  margin-left: 4px;
  box-shadow: 0 4px 16px rgba(7, 193, 96, 0.35);
  animation: btn-idle-glow 3s ease-in-out infinite;
  transition:
    transform 0.22s ease,
    box-shadow 0.25s ease,
    background 0.22s ease;
}

.nav-cta:hover {
  transform: translateY(-2px);
  background: linear-gradient(135deg, var(--primary-bright), var(--primary-dark)) !important;
  box-shadow: 0 8px 24px rgba(7, 193, 96, 0.45);
  animation: btn-idle-glow-hover 2.2s ease-in-out infinite;
}

.nav-cta:active {
  transform: translateY(0) scale(0.98);
}

.menu-toggle {
  display: none;
  border: none;
  width: 42px;
  height: 42px;
  border-radius: 10px;
  cursor: pointer;
  font-size: 20px;
}

/* —— Hero —— */
.hero {
  position: relative;
  padding: calc(var(--header-h) + 48px) 0 0;
  background: var(--bg-hero);
  overflow: hidden;
  min-height: 88vh;
  max-height: 720px;
  display: flex;
  flex-direction: column;
}

.hero-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.hero-bg::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 70% 20%, rgba(61, 220, 132, 0.35), transparent 55%),
    radial-gradient(ellipse 50% 40% at 10% 80%, rgba(7, 193, 96, 0.2), transparent 50%),
    linear-gradient(160deg, #0a2e1f 0%, #0d3d28 40%, #0f4d32 100%);
}

.hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
  padding: 36px 0 48px;
  flex: 1;
}

.hero-copy {
  color: #fff;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  font-weight: 600;
  color: #b8f5d0;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.18);
  padding: 8px 14px;
  border-radius: 999px;
  margin-bottom: 20px;
  backdrop-filter: blur(8px);
}

.hero-badge::before {
  content: "";
  width: 6px;
  height: 6px;
  background: var(--primary-bright);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--primary-bright);
}

.hero h1 {
  font-size: 32px;
  font-size: clamp(28px, 4vw, 40px);
  line-height: 1.2;
  margin: 0 0 8px;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.hero-tagline {
  font-size: 22px;
  font-size: clamp(20px, 3vw, 28px);
  font-weight: 600;
  color: var(--primary-bright);
  margin: 0 0 16px;
}

.hero-lead {
  font-size: 16px;
  line-height: 1.75;
  color: var(--text-on-dark);
  margin: 0 0 32px;
  max-width: 380px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 36px;
}

.btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 26px;
  border-radius: 12px;
  font-size: 15px;
  font-weight: 600;
  text-decoration: none;
  border: none;
  cursor: pointer;
  overflow: hidden;
  isolation: isolate;
  transition:
    transform 0.22s ease,
    box-shadow 0.25s ease,
    background 0.22s ease,
    border-color 0.22s ease,
    color 0.22s ease;
  font-family: inherit;
}

.btn > * {
  position: relative;
  z-index: 1;
}

.btn:focus-visible {
  outline: 2px solid var(--primary-bright);
  outline-offset: 3px;
}

.btn:not(:disabled):hover {
  transform: translateY(-2px);
}

.btn:not(:disabled):active {
  transform: translateY(0) scale(0.98);
  transition-duration: 0.08s;
}

.btn-primary {
  background: linear-gradient(
    135deg,
    var(--primary-bright) 0%,
    var(--primary) 50%,
    var(--primary-dark) 100%
  );
  background-size: 200% 200%;
  color: #fff;
  box-shadow: 0 8px 28px rgba(7, 193, 96, 0.45);
  animation: btn-idle-glow 3s ease-in-out infinite, btn-idle-gradient 5s ease infinite;
}

.btn-primary::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  background: linear-gradient(
    105deg,
    transparent 36%,
    rgba(255, 255, 255, 0.22) 50%,
    transparent 64%
  );
  transform: translateX(-130%) skewX(-10deg);
  animation: btn-shine-loop 3.6s ease-in-out infinite;
  pointer-events: none;
}

.btn-primary::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  background: linear-gradient(
    105deg,
    transparent 38%,
    rgba(255, 255, 255, 0.35) 50%,
    transparent 62%
  );
  transform: translateX(-120%);
  opacity: 0;
  transition: transform 0.55s ease, opacity 0.2s ease;
  pointer-events: none;
}

.btn-primary:hover {
  animation: btn-idle-glow-hover 2.2s ease-in-out infinite, btn-idle-gradient 5s ease infinite;
}

.btn-primary:hover::before {
  animation-play-state: paused;
  opacity: 0;
}

.btn-primary:hover::after {
  opacity: 1;
  transform: translateX(120%);
}

.btn-ghost {
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.28);
  backdrop-filter: blur(8px);
  animation: btn-idle-ghost 3.2s ease-in-out infinite;
}

.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.22);
  border-color: rgba(255, 255, 255, 0.45);
  box-shadow: 0 10px 28px rgba(0, 0, 0, 0.2);
  animation: none;
}

.btn-outline {
  background: #fff;
  color: var(--primary-dark);
  border: 2px solid var(--primary);
  animation: btn-idle-outline 3.4s ease-in-out infinite;
}

.btn-outline:hover {
  background: var(--bg-soft);
  border-color: var(--primary-bright);
  box-shadow: 0 8px 24px rgba(7, 193, 96, 0.18);
  animation: none;
}

.btn-sm {
  padding: 10px 18px;
  font-size: 14px;
}

.btn-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.95);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.12);
  flex-shrink: 0;
  transition: transform 0.2s ease;
}

.btn-icon img {
  width: 22px;
  height: 22px;
  display: block;
}

.btn:hover .btn-icon {
  transform: scale(1.1);
}

.btn-ghost .btn-icon {
  background: #fff;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.18);
}

.btn-icon img[src$=".svg"] {
  width: 22px;
  height: 22px;
  object-fit: contain;
}

.stats-row {
  display: flex;
  flex-wrap: wrap;
  gap: 28px 40px;
}

.stat-item strong {
  display: block;
  font-size: 26px;
  font-weight: 800;
  color: #fff;
  line-height: 1.2;
}

.stat-item span {
  font-size: 13px;
  color: var(--text-on-dark-muted);
}

/* Phone mockup */
.hero-visual {
  display: flex;
  justify-content: center;
  perspective: 1200px;
}

.phone-mockup {
  position: relative;
  width: 100%;
  max-width: 240px;
  margin: 0 auto;
}

.phone-frame {
  background: linear-gradient(145deg, #2a2a2e, #1a1a1c);
  border-radius: 36px;
  padding: 12px;
  box-shadow:
    0 40px 80px rgba(0, 0, 0, 0.45),
    inset 0 0 0 2px rgba(255, 255, 255, 0.08);
}

.phone-notch {
  width: 80px;
  height: 22px;
  background: #1a1a1c;
  border-radius: 0 0 14px 14px;
  margin: 0 auto 8px;
}

.phone-screen {
  position: relative;
  background: #111;
  border-radius: 26px;
  overflow: hidden;
  width: 100%;
}

/* 旧浏览器：比例占位 */
.phone-screen::before {
  content: "";
  display: block;
  padding-top: 211.11%;
}

.phone-screen > picture {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  display: block;
}

@supports (aspect-ratio: 9 / 19) {
  .phone-screen::before {
    display: none;
  }

  .phone-screen {
    aspect-ratio: 9 / 19;
  }

  .phone-screen > picture {
    position: static;
    width: 100%;
    height: 100%;
  }
}

.hero-screenshot {
  width: 100%;
  max-width: 100%;
  height: 100%;
  max-height: 100%;
  object-fit: cover;
  object-position: top center;
  display: block;
}

@supports not (object-fit: cover) {
  .hero-screenshot {
    height: auto;
    max-height: 456px;
  }
}

.app-preview {
  padding: 14px 12px;
  height: 100%;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.app-preview-header {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 700;
  color: #111;
}

.app-preview-header img {
  width: 26px;
  height: 26px;
  border-radius: 8px;
}

.app-card {
  background: #fff;
  border-radius: 12px;
  padding: 12px;
  border: 1px solid #e5e7eb;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

.app-card-title {
  font-size: 11px;
  font-weight: 600;
  color: #6b7280;
  margin-bottom: 8px;
}

.app-tools {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 6px;
}

.app-tool {
  background: #f9fafb;
  border-radius: 8px;
  padding: 8px 6px;
  text-align: center;
  font-size: 10px;
  color: #374151;
}

.app-tool .icon {
  display: block;
  width: 28px;
  height: 28px;
  margin: 0 auto 4px;
  border-radius: 8px;
  line-height: 28px;
  font-size: 12px;
  font-weight: 700;
  color: #fff;
}

.app-tool .icon-like { background: linear-gradient(135deg, #f59e0b, #ef4444); }
.app-tool .icon-quick { background: linear-gradient(135deg, #3b82f6, #2563eb); }

.app-highlight {
  margin-top: auto;
  background: linear-gradient(135deg, #ecfdf5, #d1fae5);
  border: 1px solid rgba(7, 193, 96, 0.3);
  border-radius: 10px;
  padding: 10px;
  font-size: 11px;
  color: var(--primary-deep);
  text-align: center;
}

.app-highlight strong {
  display: block;
  font-size: 12px;
  margin-bottom: 2px;
}

.phone-glow {
  position: absolute;
  width: 200%;
  height: 60%;
  left: -50%;
  bottom: -20%;
  background: radial-gradient(ellipse, rgba(61, 220, 132, 0.25), transparent 70%);
  z-index: -1;
}

/* Stats strip */
.stats-strip {
  position: relative;
  z-index: 2;
  margin-top: auto;
  background: rgba(255, 255, 255, 0.06);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(12px);
}

.stats-strip-inner {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  padding: 20px 0;
}

.stats-strip-item {
  text-align: center;
  color: var(--text-on-dark);
  font-size: 13px;
}

.stats-strip-item strong {
  display: block;
  font-size: 15px;
  color: #fff;
  margin-bottom: 4px;
}

/* —— Sections —— */
section {
  padding: var(--section-y) 0;
}

.section-head {
  text-align: center;
  margin: 0 auto 36px;
  max-width: 600px;
}

.section-head h2 {
  margin: 0;
  font-size: 28px;
  font-size: clamp(26px, 3vw, 34px);
  font-weight: 800;
  letter-spacing: -0.02em;
}

.section-head .sub {
  margin-top: 10px;
  font-size: 13px;
  color: var(--text-grey);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.section-lead {
  text-align: center;
  max-width: 520px;
  margin: -24px auto 32px;
  color: var(--text-sub);
  font-size: 15px;
  line-height: 1.7;
}

/* —— Platforms —— */
.platforms {
  background: #fff;
}

.compare-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  align-items: stretch;
}

.compare-card {
  position: relative;
  display: flex;
  flex-direction: column;
  background: var(--card-bg);
  border-radius: var(--radius-lg);
  padding: 28px;
  box-shadow: var(--shadow);
  border: 1px solid #e8ecef;
  overflow: hidden;
  transition: box-shadow 0.25s;
}

.compare-card:hover {
  box-shadow: var(--shadow-lg);
}

.compare-card.is-highlight {
  border-color: var(--primary);
}

.compare-card.is-highlight::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--primary-bright), var(--primary));
}

.compare-card header {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  margin-bottom: 22px;
}

/* —— Icon badges (platform / guide) —— */
.icon-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  border-radius: 16px;
  flex-shrink: 0;
  border: 1px solid rgba(7, 193, 96, 0.12);
  box-shadow: 0 6px 20px rgba(7, 193, 96, 0.12);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.icon-badge img {
  width: 36px;
  height: 36px;
  object-fit: contain;
  display: block;
  filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.08));
}

.icon-badge--android {
  background: linear-gradient(145deg, #ecfdf5 0%, #d1fae5 100%);
}

.icon-badge--windows {
  background: linear-gradient(145deg, #eff6ff 0%, #dbeafe 100%);
  border-color: rgba(0, 120, 212, 0.2);
  box-shadow: 0 6px 20px rgba(0, 120, 212, 0.15);
}

.icon-badge--windows img[src$=".svg"] {
  width: 32px;
  height: 32px;
}

.icon-badge--sm {
  width: 40px;
  height: 40px;
  border-radius: 12px;
}

.icon-badge--sm img {
  width: 24px;
  height: 24px;
}

.compare-card:hover .icon-badge {
  transform: scale(1.08) translateY(-2px);
  box-shadow: 0 10px 28px rgba(7, 193, 96, 0.2);
}

.compare-card.is-highlight .icon-badge--android {
  animation: icon-badge-pulse 2.8s ease-in-out infinite;
}

.compare-card h3 {
  margin: 0;
  font-size: 22px;
}

.compare-card .tag {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  color: var(--primary-dark);
  background: var(--bg-soft);
  padding: 4px 10px;
  border-radius: 6px;
  margin-top: 6px;
}

.compare-list {
  list-style: none;
  margin: 0 0 20px;
  padding: 0;
  flex: 1;
}

.compare-list li {
  padding: 10px 0;
  font-size: 14px;
  color: var(--text-sub);
  border-bottom: 1px solid #f0f2f4;
  padding-left: 22px;
  position: relative;
}

.compare-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 16px;
  width: 8px;
  height: 8px;
  background: var(--primary);
  border-radius: 50%;
}

.compare-card .btn {
  width: 100%;
  margin-top: auto;
}

.cross-link {
  text-align: center;
  margin-top: 32px;
  padding: 20px 24px;
  background: var(--bg-soft);
  border-radius: var(--radius);
  font-size: 15px;
  color: var(--text-sub);
}

/* —— Showcase —— */
.showcase {
  background: var(--bg);
}

.showcase-grid {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 48px;
  align-items: center;
}

.showcase-gallery {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  max-width: 840px;
  margin: 0 auto;
}

.showcase-platform-title {
  margin: 0 0 16px;
  font-size: 17px;
  font-weight: 700;
  color: var(--primary-deep);
}

.showcase-platform-title:not(:first-of-type) {
  margin-top: 36px;
}

.showcase-desktop {
  margin: 0 auto 8px;
  max-width: 840px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  border: 1px solid #e8ecef;
  background: #fff;
}

.showcase-desktop picture,
.showcase-shot picture {
  display: block;
  line-height: 0;
}

.showcase-desktop img,
.showcase-desktop picture img {
  width: 100%;
  max-width: 100%;
  height: auto;
  max-height: 560px;
  display: block;
}

.showcase-desktop figcaption {
  padding: 12px 16px;
  text-align: center;
  font-size: 14px;
  font-weight: 600;
  color: var(--text-sub);
  border-top: 1px solid #f0f2f4;
}

.showcase-gallery-3 {
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  max-width: 840px;
}

.showcase-shot {
  display: flex;
  flex-direction: column;
  border-radius: 14px;
  overflow: hidden;
  box-shadow: var(--shadow);
  border: 1px solid #e8ecef;
  background: #fff;
  height: 100%;
}

.showcase-shot:hover {
  box-shadow: var(--shadow-lg);
}

.showcase-shot img,
.showcase-shot picture img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  max-height: 520px;
  object-fit: cover;
  object-position: top center;
}

@supports (aspect-ratio: 9 / 16) {
  .showcase-shot img,
  .showcase-shot picture img {
    max-height: none;
    height: auto;
    aspect-ratio: 9 / 16;
  }
}

.showcase-shot figcaption {
  padding: 10px 12px 8px;
  font-size: 14px;
  font-weight: 700;
  color: var(--text-main);
  text-align: center;
  border-top: 1px solid #f0f2f4;
  background: #fff;
}

.shot-tag {
  display: inline-block;
  font-size: 11px;
  font-weight: 600;
  color: var(--primary-dark);
  background: var(--bg-soft);
  padding: 2px 8px;
  border-radius: 4px;
  margin-left: 4px;
  vertical-align: middle;
}

.showcase-features {
  list-style: none;
  margin: 0;
  padding: 12px 14px 14px;
  flex: 1;
  border-top: 1px solid #f0f2f4;
  background: #fafbfc;
}

.showcase-features li {
  position: relative;
  padding: 5px 0 5px 16px;
  font-size: 12px;
  line-height: 1.5;
  color: var(--text-sub);
}

.showcase-features li::before {
  content: "·";
  position: absolute;
  left: 4px;
  color: var(--primary);
  font-weight: 700;
}

/* —— App functions (from 首页截图) —— */
.app-functions {
  background: #fff;
}

.func-group-title {
  margin: 0 0 14px;
  font-size: 15px;
  font-weight: 700;
  color: var(--text-grey);
  letter-spacing: 0.04em;
}

.func-tool-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
}

.func-tool-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 20px 12px;
  background: var(--card-bg);
  border: 1px solid #e8ecef;
  border-radius: var(--radius);
  min-height: 160px;
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}

.func-tool-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
  border-color: rgba(7, 193, 96, 0.25);
}

.func-tool-card:hover .func-tool-icon {
  transform: scale(1.1);
}

.func-tool-card h4 {
  margin: 10px 0 6px;
  font-size: 15px;
}

.func-tool-card p {
  margin: 0;
  font-size: 12px;
  line-height: 1.55;
  color: var(--text-grey);
}

.func-tool-icon {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  border-radius: 14px;
  font-size: 22px;
  font-weight: 800;
  color: #fff;
  flex-shrink: 0;
  border: 2px solid rgba(255, 255, 255, 0.35);
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.15);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
  overflow: hidden;
}

.func-tool-icon::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    120deg,
    transparent 30%,
    rgba(255, 255, 255, 0.35) 50%,
    transparent 70%
  );
  transform: translateX(-120%);
  transition: transform 0.6s ease;
}

.func-tool-card:hover .func-tool-icon::after {
  transform: translateX(120%);
}

.func-tool-icon--fast {
  background: linear-gradient(145deg, #fcd34d, #f59e0b);
  box-shadow: 0 8px 22px rgba(245, 158, 11, 0.45);
}

.func-tool-icon--contact {
  background: linear-gradient(145deg, #f9a8d4, #ec4899);
  box-shadow: 0 8px 22px rgba(236, 72, 153, 0.4);
}

.func-tool-icon--multi {
  background: linear-gradient(145deg, #86efac, #22c55e);
  box-shadow: 0 8px 22px rgba(34, 197, 94, 0.4);
}

.func-tool-icon--group {
  background: linear-gradient(145deg, #c4b5fd, #8b5cf6);
  box-shadow: 0 8px 22px rgba(139, 92, 246, 0.4);
}

.func-tool-icon--like {
  background: linear-gradient(145deg, #93c5fd, #3b82f6);
  box-shadow: 0 8px 22px rgba(59, 130, 246, 0.45);
}

.reveal.is-visible .func-tool-icon {
  animation: icon-float 3.2s ease-in-out infinite;
}

.func-tool-card:nth-child(1) .func-tool-icon { animation-delay: 0s; }
.func-tool-card:nth-child(2) .func-tool-icon { animation-delay: 0.4s; }
.func-tool-card:nth-child(3) .func-tool-icon { animation-delay: 0.8s; }
.func-tool-card:nth-child(4) .func-tool-icon { animation-delay: 1.2s; }

.func-highlight {
  display: flex;
  align-items: flex-start;
  gap: 18px;
  margin-top: 20px;
  padding: 22px 24px;
  background: linear-gradient(135deg, #eff6ff, #fff);
  border: 1px solid rgba(59, 130, 246, 0.25);
  border-radius: var(--radius-lg);
  transition: box-shadow 0.3s ease;
}

.func-highlight:hover {
  box-shadow: 0 12px 32px rgba(59, 130, 246, 0.15);
}

.func-highlight .func-tool-icon {
  width: 60px;
  height: 60px;
  font-size: 24px;
  flex-shrink: 0;
}

.reveal.is-visible .func-highlight .func-tool-icon--like {
  animation: icon-glow-like 2.4s ease-in-out infinite;
}

.func-highlight h3 {
  margin: 0 0 8px;
  font-size: 17px;
}

.func-highlight p {
  margin: 0;
  font-size: 14px;
  line-height: 1.65;
  color: var(--text-sub);
}

.func-badge {
  display: inline-block;
  font-size: 11px;
  font-weight: 600;
  color: var(--primary-dark);
  background: var(--bg-soft);
  padding: 2px 8px;
  border-radius: 4px;
  margin-left: 6px;
  vertical-align: middle;
}

.showcase-copy h3 {
  font-size: 24px;
  margin: 0 0 16px;
}

.showcase-copy p {
  color: var(--text-sub);
  margin: 0 0 20px;
  font-size: 16px;
}

.showcase-points {
  list-style: none;
  padding: 0;
  margin: 0;
}

.showcase-points li {
  padding: 10px 0 10px 28px;
  position: relative;
  font-size: 15px;
  color: var(--text-sub);
}

.showcase-points li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--primary);
  font-weight: 800;
}

/* —— Features —— */
.features {
  background: #fff;
}

.scenario-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-bottom: 40px;
}

.scenario-card {
  padding: 28px 24px;
  border-radius: var(--radius-lg);
  background: linear-gradient(160deg, #f0fdf4, #fff);
  border: 1px solid rgba(7, 193, 96, 0.15);
}

.scenario-card .num {
  font-size: 32px;
  font-weight: 800;
  color: rgba(7, 193, 96, 0.2);
  line-height: 1;
  margin-bottom: 8px;
}

.scenario-card strong {
  display: block;
  font-size: 17px;
  margin-bottom: 8px;
  color: var(--primary-deep);
}

.scenario-card p {
  margin: 0;
  font-size: 14px;
  color: var(--text-sub);
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  align-items: stretch;
}

.grid-6 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.feature-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  background: var(--card-bg);
  border-radius: var(--radius);
  padding: 24px 20px;
  text-align: center;
  border: 1px solid #e8ecef;
  min-height: 168px;
  transition: box-shadow 0.25s;
}

.feature-card:hover {
  box-shadow: var(--shadow);
}

.feature-card .icon {
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 14px;
}

.feature-card .icon img {
  width: 52px;
  height: 52px;
}

.feature-card h3 {
  margin: 0 0 8px;
  font-size: 16px;
}

.feature-card p {
  margin: 0;
  font-size: 13px;
  color: var(--text-grey);
}

/* —— Steps —— */
.steps {
  background: var(--bg-soft);
}

.steps-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  position: relative;
}

.steps-row::before {
  content: "";
  position: absolute;
  top: 28px;
  left: 15%;
  right: 15%;
  height: 2px;
  background: linear-gradient(90deg, var(--primary), var(--primary-bright));
  opacity: 0.25;
  z-index: 0;
}

.step-card {
  position: relative;
  z-index: 1;
  background: var(--card-bg);
  border-radius: var(--radius-lg);
  padding: 32px 26px;
  box-shadow: var(--shadow);
  text-align: center;
}

.step-num {
  width: 48px;
  height: 48px;
  margin: 0 auto 18px;
  background: linear-gradient(135deg, var(--primary), var(--primary-bright));
  color: #fff;
  font-weight: 800;
  font-size: 20px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 6px 20px rgba(7, 193, 96, 0.35);
}

.step-card h3 {
  margin: 0 0 10px;
  font-size: 18px;
}

.step-card p {
  margin: 0;
  font-size: 14px;
  color: var(--text-grey);
}

/* —— Video —— */
.video-section {
  background: var(--bg);
}

.video-tabs {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-bottom: 28px;
}

.video-tab {
  padding: 10px 22px;
  border: none;
  background: #fff;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 600;
  color: var(--text-sub);
  cursor: pointer;
  font-family: inherit;
  transition:
    transform 0.2s ease,
    box-shadow 0.2s ease,
    background 0.2s ease,
    color 0.2s ease;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
}

.video-tab:hover:not(.is-active) {
  transform: translateY(-1px);
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.08);
  color: var(--primary-dark);
}

.video-tab.is-active {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 6px 20px rgba(7, 193, 96, 0.35);
  animation: btn-idle-glow 3s ease-in-out infinite;
}

.video-panels {
  max-width: 840px;
  margin: 0 auto;
}

.video-panel {
  display: none;
}

.video-panel.is-active {
  display: block;
}

.video-wrap {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  background: #000;
}

.video-wrap video,
.video-wrap iframe {
  width: 100%;
  display: block;
  aspect-ratio: 16 / 9;
  border: none;
}

.video-panel[data-panel="mobile"] .video-wrap iframe {
  aspect-ratio: 16 / 10;
  min-height: 360px;
}

.video-note {
  text-align: center;
  margin-top: 16px;
  font-size: 14px;
  color: var(--text-grey);
}

/* —— CTA banner —— */
.cta-banner {
  padding: 0;
}

.cta-inner {
  background: linear-gradient(135deg, var(--primary-deep), var(--primary));
  border-radius: var(--radius-lg);
  padding: 40px 36px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  flex-wrap: wrap;
  box-shadow: var(--shadow-lg);
}

.cta-inner h2 {
  margin: 0 0 8px;
  font-size: 26px;
  color: #fff;
  font-weight: 800;
}

.cta-inner p {
  margin: 0;
  color: var(--text-on-dark);
  font-size: 15px;
}

.cta-btns {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.cta-inner .btn-primary {
  background: #fff;
  color: var(--primary-deep);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
}

.cta-inner .btn-ghost {
  border-color: rgba(255, 255, 255, 0.5);
}

/* —— FAQ —— */
.faq {
  background: #fff;
}

.faq-list {
  max-width: 720px;
  margin: 0 auto;
}

.faq-item {
  border-radius: 14px;
  margin-bottom: 12px;
  overflow: hidden;
  border: 1px solid #e8ecef;
  background: var(--bg);
  transition: border-color 0.2s, box-shadow 0.2s;
}

.faq-item.is-open {
  border-color: var(--primary);
  box-shadow: var(--shadow);
  background: #fff;
}

.faq-q-wrap {
  margin: 0;
  font-size: inherit;
  font-weight: inherit;
}

.faq-q {
  width: 100%;
  text-align: left;
  padding: 20px 22px;
  border: none;
  background: none;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  font-family: inherit;
  color: var(--text-main);
  transition: color 0.2s ease, background 0.2s ease;
}

.faq-q:hover {
  color: var(--primary-dark);
  background: rgba(7, 193, 96, 0.04);
}

.faq-q::after {
  content: "+";
  width: 28px;
  height: 28px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-soft);
  color: var(--primary);
  border-radius: 8px;
  font-size: 18px;
  font-weight: 400;
}

.faq-item.is-open .faq-q::after {
  content: "−";
  background: var(--primary);
  color: #fff;
}

.faq-a {
  display: none;
  padding: 0 22px 20px;
  font-size: 14px;
  color: var(--text-sub);
  line-height: 1.75;
}

.faq-item.is-open .faq-a {
  display: block;
}

.faq-a p {
  margin: 0;
}

/* —— Contact —— */
.contact {
  background: var(--bg-soft);
  padding: 56px 0;
}

.contact-card {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 32px;
  align-items: center;
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 32px 36px;
  box-shadow: var(--shadow);
  max-width: 720px;
  margin: 0 auto;
}

.contact-card h3 {
  margin: 0 0 8px;
  font-size: 20px;
}

.contact-card p {
  margin: 0 0 16px;
  color: var(--text-grey);
  font-size: 14px;
}

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

.contact-phone {
  font-size: 22px;
  font-weight: 800;
  color: var(--primary-dark);
  text-decoration: none;
}

.btn-link {
  border: none;
  background: var(--bg-soft);
  color: var(--primary-dark);
  padding: 8px 14px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 13px;
  font-weight: 600;
  font-family: inherit;
  animation: btn-idle-link 3.5s ease-in-out infinite;
  transition:
    transform 0.2s ease,
    background 0.2s ease,
    box-shadow 0.2s ease;
}

.btn-link:hover {
  transform: translateY(-1px);
  background: #d8f5e4;
  box-shadow: 0 4px 12px rgba(7, 193, 96, 0.12);
  animation: none;
}

.btn-link:active {
  transform: scale(0.97);
}

.contact-qr {
  flex-shrink: 0;
  width: 120px;
  height: 120px;
  max-width: 100%;
  overflow: hidden;
  border-radius: 12px;
  border: 1px solid #eee;
  background: #fff;
  box-sizing: border-box;
}

.contact-qr img {
  display: block;
  width: 100%;
  height: 100%;
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  box-sizing: border-box;
}

/* —— Products —— */
.products-strip {
  padding: 48px 0;
  background: #fff;
}

.product-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  align-items: stretch;
}

.product-card {
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-height: 88px;
  padding: 20px 18px;
  background: var(--card-bg);
  border-radius: var(--radius);
  text-decoration: none;
  color: inherit;
  border: 1px solid #e8ecef;
  transition: box-shadow 0.2s, border-color 0.2s;
}

.product-card:hover {
  border-color: rgba(7, 193, 96, 0.25);
  box-shadow: var(--shadow);
}

.product-card strong {
  display: block;
  font-size: 15px;
  margin-bottom: 6px;
  color: var(--text-main);
}

.product-card span {
  font-size: 12px;
  color: var(--text-grey);
}

/* —— Footer —— */
.site-footer {
  background: #0f1a15;
  color: rgba(255, 255, 255, 0.7);
  padding: 48px 0 110px;
  font-size: 13px;
}

.site-footer a {
  color: rgba(255, 255, 255, 0.9);
  text-decoration: none;
}

.site-footer a:hover {
  color: var(--primary-bright);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 40px;
  margin-bottom: 32px;
}

.footer-brand strong {
  color: #fff;
  font-size: 17px;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 20px;
}

.footer-bottom {
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  text-align: center;
  line-height: 1.9;
}

/* —— Sticky CTA —— */
.sticky-cta {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 90;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(12px);
  padding: 12px 16px;
  display: flex;
  justify-content: center;
  gap: 12px;
  box-shadow: 0 -4px 24px rgba(0, 0, 0, 0.08);
  border-top: 1px solid rgba(7, 193, 96, 0.12);
  transform: translateY(0);
  transition: transform 0.3s;
}

.sticky-cta.is-hidden {
  transform: translateY(100%);
}

.sticky-cta .btn {
  flex: 1;
  max-width: 220px;
  padding: 12px 18px;
  font-size: 14px;
}


/* —— Service —— */
.service-float {
  position: fixed;
  right: 20px;
  bottom: 88px;
  z-index: 85;
}

.service-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  background: #fff;
  border: none;
  border-radius: 999px;
  padding: 12px 18px 12px 14px;
  box-shadow: var(--shadow-lg);
  cursor: pointer;
  font-size: 14px;
  font-weight: 600;
  color: var(--text-sub);
  font-family: inherit;
  animation: btn-idle-float 3s ease-in-out infinite;
  transition:
    transform 0.22s ease,
    box-shadow 0.25s ease,
    color 0.2s ease;
}

.service-btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 36px rgba(7, 193, 96, 0.22);
  color: var(--primary-dark);
  animation: none;
}

.service-btn:active {
  transform: translateY(-1px) scale(0.98);
}

.service-btn img {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(7, 193, 96, 0.2);
  transition: transform 0.25s ease;
}

.service-btn:hover img {
  transform: scale(1.08) rotate(-5deg);
}

.service-qr {
  display: none;
  position: absolute;
  right: 0;
  bottom: calc(100% + 10px);
  background: #fff;
  padding: 14px;
  border-radius: 16px;
  box-shadow: var(--shadow-lg);
  text-align: center;
}

.service-float.is-open .service-qr {
  display: block;
}

.service-qr {
  width: 140px;
  height: 140px;
  max-width: 100%;
  overflow: hidden;
  border-radius: 8px;
  background: #fff;
  box-sizing: border-box;
}

.service-qr img {
  display: block;
  width: 100%;
  height: 100%;
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  box-sizing: border-box;
}

.service-qr small {
  display: block;
  margin-top: 8px;
  font-size: 12px;
  color: var(--text-grey);
}

/* —— Modal —— */
.modal[hidden] {
  display: none !important;
}

.modal {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.modal-mask {
  position: absolute;
  inset: 0;
  background: rgba(15, 26, 21, 0.6);
  backdrop-filter: blur(4px);
}

.dialog {
  position: relative;
  background: #fff;
  border-radius: 24px;
  padding: 32px 28px 24px;
  width: 100%;
  max-width: 440px;
  box-shadow: var(--shadow-lg);
  animation: dialogIn 0.3s ease;
}

@keyframes dialogIn {
  from {
    opacity: 0;
    transform: scale(0.95) translateY(10px);
  }
}

@keyframes icon-float {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-5px);
  }
}

@keyframes icon-badge-pulse {
  0%,
  100% {
    box-shadow: 0 6px 20px rgba(7, 193, 96, 0.12);
    transform: scale(1);
  }
  50% {
    box-shadow: 0 10px 28px rgba(7, 193, 96, 0.28);
    transform: scale(1.04);
  }
}

@keyframes icon-glow-like {
  0%,
  100% {
    box-shadow: 0 8px 22px rgba(59, 130, 246, 0.4);
  }
  50% {
    box-shadow: 0 12px 32px rgba(59, 130, 246, 0.65);
  }
}

@keyframes btn-idle-glow {
  0%,
  100% {
    box-shadow: 0 6px 22px rgba(7, 193, 96, 0.38);
  }
  50% {
    box-shadow: 0 12px 34px rgba(7, 193, 96, 0.55);
  }
}

@keyframes btn-idle-glow-hover {
  0%,
  100% {
    box-shadow: 0 10px 32px rgba(7, 193, 96, 0.48);
  }
  50% {
    box-shadow: 0 14px 42px rgba(7, 193, 96, 0.62);
  }
}

@keyframes btn-idle-gradient {
  0%,
  100% {
    background-position: 0% 50%;
  }
  50% {
    background-position: 100% 50%;
  }
}

@keyframes btn-shine-loop {
  0% {
    transform: translateX(-130%) skewX(-10deg);
    opacity: 0;
  }
  12% {
    opacity: 1;
  }
  48% {
    transform: translateX(130%) skewX(-10deg);
    opacity: 1;
  }
  60%,
  100% {
    transform: translateX(130%) skewX(-10deg);
    opacity: 0;
  }
}

@keyframes btn-idle-outline {
  0%,
  100% {
    border-color: rgba(7, 193, 96, 0.35);
    box-shadow: 0 0 0 0 rgba(7, 193, 96, 0);
  }
  50% {
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(7, 193, 96, 0.1);
  }
}

@keyframes btn-idle-ghost {
  0%,
  100% {
    border-color: rgba(255, 255, 255, 0.25);
    box-shadow: 0 0 0 rgba(255, 255, 255, 0);
  }
  50% {
    border-color: rgba(255, 255, 255, 0.55);
    box-shadow: 0 0 18px rgba(255, 255, 255, 0.12);
  }
}

@keyframes btn-idle-link {
  0%,
  100% {
    background: var(--bg-soft);
  }
  50% {
    background: #d8f5e4;
  }
}

@keyframes btn-idle-float {
  0%,
  100% {
    transform: translateY(0);
    box-shadow: 0 8px 28px rgba(0, 0, 0, 0.12);
  }
  50% {
    transform: translateY(-3px);
    box-shadow: 0 14px 36px rgba(7, 193, 96, 0.18);
  }
}

.dialog-title {
  font-size: 18px;
  font-weight: 700;
  text-align: center;
  margin: 0 0 24px;
}

.dialog-close {
  position: absolute;
  top: 16px;
  right: 16px;
  border: none;
  background: var(--bg);
  width: 36px;
  height: 36px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}

.dialog-close img {
  width: 18px;
  height: 18px;
}

.download-option {
  display: flex;
  align-items: center;
  gap: 16px;
  width: 100%;
  padding: 18px;
  margin-bottom: 12px;
  border: 2px solid #eef0f2;
  border-radius: 16px;
  background: var(--bg);
  cursor: pointer;
  text-align: left;
  font-family: inherit;
  animation: btn-idle-outline 3.6s ease-in-out infinite;
  transition:
    border-color 0.22s ease,
    background 0.22s ease,
    transform 0.22s ease,
    box-shadow 0.22s ease;
}

.download-option:hover {
  border-color: var(--primary);
  background: var(--bg-soft);
  transform: translateY(-2px);
  box-shadow: 0 10px 28px rgba(7, 193, 96, 0.12);
  animation: none;
}

.download-option:active {
  transform: translateY(0) scale(0.99);
}

.download-option > img {
  width: 44px;
  height: 44px;
  flex-shrink: 0;
  padding: 8px;
  border-radius: 12px;
  background: var(--bg-soft);
  border: 1px solid #e8ecef;
  box-shadow: 0 4px 12px rgba(7, 193, 96, 0.1);
  object-fit: contain;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.download-option:hover > img {
  transform: scale(1.08);
  box-shadow: 0 6px 18px rgba(7, 193, 96, 0.2);
}

.download-option strong {
  display: block;
  font-size: 16px;
  color: var(--text-main);
}

.download-option span {
  font-size: 13px;
  color: var(--text-grey);
}

.toast {
  position: fixed;
  bottom: 100px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(15, 26, 21, 0.9);
  color: #fff;
  padding: 12px 24px;
  border-radius: 10px;
  font-size: 14px;
  z-index: 300;
}

.toast[hidden] {
  display: none;
}

/* —— Guide (homepage) —— */
.guide {
  background: var(--bg-soft);
}

.guide-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  align-items: stretch;
}

.guide-col {
  display: flex;
  flex-direction: column;
  background: var(--card-bg);
  border-radius: var(--radius-lg);
  padding: 28px;
  border: 1px solid #e8ecef;
  box-shadow: var(--shadow);
}

.guide-col-title {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px 10px;
  min-height: 40px;
  margin: 0 0 20px;
  padding-bottom: 16px;
  border-bottom: 1px solid #eef0f2;
  font-size: 17px;
  color: var(--primary-deep);
}

.guide-col-title .icon-badge {
  flex-shrink: 0;
}

.guide-col:hover .icon-badge {
  transform: scale(1.06);
}

.guide-note {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-grey);
  background: var(--bg);
  padding: 4px 10px;
  border-radius: 6px;
  margin-left: 4px;
}

.guide .doc-step {
  margin-bottom: 12px;
  padding: 14px 16px;
  background: var(--bg);
  border-radius: 10px;
  border-left: 3px solid var(--primary);
}

.guide .doc-step:last-child {
  margin-bottom: 0;
}

.guide .doc-step p {
  margin: 0 0 4px;
  font-size: 14px;
  color: var(--text-sub);
  line-height: 1.6;
}

.guide .doc-step p:last-child {
  margin-bottom: 0;
}

.guide .doc-step strong {
  color: var(--text-main);
}

/* —— Sub pages —— */
body.sub-page {
  padding-top: var(--header-h);
}

body.sub-page .site-header {
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(16px);
  box-shadow: 0 1px 0 rgba(7, 193, 96, 0.1);
}

.page-hero {
  padding: 40px 0 32px;
  background: linear-gradient(180deg, var(--bg-soft), var(--bg));
}

.page-hero h1 {
  margin: 0;
  font-size: 30px;
  font-weight: 800;
}

.doc-content {
  padding: 40px 0 80px;
  max-width: 720px;
  margin: 0 auto;
}

.doc-content h2 {
  font-size: 18px;
  margin: 32px 0 14px;
  color: var(--primary-deep);
}

.doc-content p,
.doc-content li {
  font-size: 15px;
  color: var(--text-sub);
  line-height: 1.8;
}

.doc-step {
  margin-bottom: 20px;
  padding: 22px 24px;
  background: #fff;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  border-left: 4px solid var(--primary);
}

.text-center { text-align: center; }
.mt-24 { margin-top: 24px; }
.text-muted { color: var(--text-grey); font-size: 14px; }

/* —— Responsive —— */
@media (max-width: 960px) {
  .hero-grid,
  .showcase-grid,
  .compare-grid,
  .scenario-row,
  .grid-6,
  .guide-grid,
  .steps-row,
  .footer-grid,
  .contact-card,
  .product-cards,
  .stats-strip-inner {
    grid-template-columns: 1fr;
  }

  .stats-strip-inner {
    grid-template-columns: repeat(2, 1fr);
  }

  .showcase-gallery,
  .showcase-gallery-4 {
    grid-template-columns: repeat(2, 1fr);
    max-width: 480px;
    margin: 0 auto;
  }

  .showcase-gallery-4 .showcase-shot:nth-child(2),
  .showcase-gallery-4 .showcase-shot:nth-child(4) {
    transform: none;
  }

  .steps-row::before {
    display: none;
  }

  .grid-4,
  .grid-6,
  .func-tool-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .func-highlight {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }

  .showcase-gallery-3 {
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
    max-width: 100%;
  }

  .product-cards {
    grid-template-columns: repeat(2, 1fr);
  }

  .nav {
    display: none;
    position: absolute;
    top: var(--header-h);
    left: 0;
    right: 0;
    flex-direction: column;
    background: #fff;
    padding: 16px;
    box-shadow: var(--shadow-lg);
  }

  .nav.is-open {
    display: flex;
  }

  .menu-toggle {
    display: block;
  }

  .site-header {
    background: rgba(255, 255, 255, 0.94);
    backdrop-filter: blur(16px);
  }

  body.has-hero-header .site-header:not(.is-scrolled) .brand-text strong,
  body.has-hero-header .site-header:not(.is-scrolled) .nav a {
    color: var(--text-sub);
  }

  .hero {
    min-height: auto;
  }

  .phone-mockup {
    max-width: 240px;
    margin: 0 auto;
  }

  .cta-inner {
    flex-direction: column;
    text-align: center;
  }

  .cta-btns {
    justify-content: center;
    width: 100%;
  }
}

@media (max-width: 520px) {
  section {
    padding: 48px 0;
  }

  .showcase-gallery-3 {
    grid-template-columns: 1fr;
    max-width: 280px;
    margin: 0 auto;
  }

  .grid-4,
  .grid-6,
  .product-cards,
  .func-tool-grid {
    grid-template-columns: 1fr;
  }

  .hero-actions .btn {
    width: 100%;
  }

  .stats-row {
    gap: 20px;
  }

  .service-float {
    right: 12px;
    bottom: 76px;
  }

  .service-btn span {
    display: none;
  }

  .contact-card {
    padding: 24px;
    text-align: center;
  }

  .contact-qr {
    width: 100%;
    max-width: 120px;
    margin: 0 auto;
  }
}

@media (min-width: 961px) {
  .sticky-cta {
    display: none;
  }

  .site-footer {
    padding-bottom: 48px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .func-tool-icon,
  .icon-badge,
  .btn-icon,
  .compare-card.is-highlight .icon-badge--android,
  .btn-primary,
  .btn-ghost,
  .btn-outline,
  .nav-cta,
  .video-tab.is-active,
  .service-btn,
  .download-option,
  .btn-link {
    animation: none !important;
  }

  .func-tool-card:hover,
  .compare-card:hover .icon-badge,
  .btn:hover,
  .btn:hover .btn-icon,
  .btn:not(:disabled):active,
  .nav-cta:hover,
  .nav-cta:active,
  .video-tab:hover,
  .service-btn:hover,
  .download-option:hover,
  .btn-link:hover {
    transform: none;
  }

  .btn-primary::before,
  .btn-primary::after {
    display: none;
  }
}