/* Photo Recovery — Official Landing */
:root {
  --blue-deep: #0b1f4d;
  --blue: #1e4fd6;
  --blue-mid: #2563eb;
  --cyan: #38bdf8;
  --sky: #7dd3fc;
  --ink: #0f172a;
  --muted: #475569;
  --line: rgba(255, 255, 255, 0.16);
  --glass: rgba(255, 255, 255, 0.1);
  --glass-strong: rgba(255, 255, 255, 0.18);
  --mint: #10b981;
  --coral: #fb7185;
  --amber: #f59e0b;
  --violet-soft: #a78bfa;
  --white: #ffffff;
  --shadow: 0 24px 60px rgba(15, 23, 42, 0.28);
  --radius: 20px;
  --nav-h: 64px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --lh: 1.5;
}

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

html {
  scroll-behavior: smooth;
  scroll-snap-type: y mandatory;
  scroll-padding-top: 0;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: "Manrope", system-ui, sans-serif;
  font-size: 15px;
  line-height: var(--lh);
  color: var(--white);
  background: var(--blue-deep);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

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

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

button {
  font: inherit;
  border: none;
  background: none;
  cursor: pointer;
  color: inherit;
}

ul {
  list-style: none;
}

/* ---------- Ambient canvas ---------- */
#bg-canvas {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

.noise {
  position: fixed;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  opacity: 0.04;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* ---------- Nav ---------- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 24px;
  transition: background 0.4s var(--ease), backdrop-filter 0.4s var(--ease),
    border-color 0.4s var(--ease);
  border-bottom: 1px solid transparent;
}

.nav.scrolled {
  background: rgba(11, 31, 77, 0.78);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom-color: var(--line);
}

.nav-inner {
  width: min(1120px, 100%);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

/* ---- Language switcher ---- */
.lang-switch {
  position: relative;
  z-index: 110;
}

.lang-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-height: 36px;
  padding: 0 12px;
  border-radius: 999px;
  background: var(--glass);
  border: 1px solid var(--line);
  font-size: 0.78rem;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.9);
  transition: background 0.25s, border-color 0.25s, transform 0.25s;
}

.lang-btn:hover {
  background: var(--glass-strong);
  border-color: rgba(125, 211, 252, 0.4);
}

.lang-btn-label {
  max-width: 9.5em;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.lang-caret {
  width: 12px;
  height: 12px;
  opacity: 0.75;
  flex-shrink: 0;
}

.lang-menu {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  width: min(220px, 70vw);
  max-height: min(360px, 60vh);
  overflow-y: auto;
  padding: 8px;
  border-radius: 14px;
  background: rgba(11, 31, 77, 0.96);
  border: 1px solid var(--line);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: var(--shadow);
  display: grid;
  gap: 2px;
}

.lang-menu[hidden] {
  display: none !important;
}

.lang-menu [role="option"] {
  width: 100%;
  text-align: start;
  padding: 10px 12px;
  border-radius: 10px;
  font-size: 0.84rem;
  color: rgba(255, 255, 255, 0.85);
  transition: background 0.2s, color 0.2s;
}

.lang-menu [role="option"]:hover {
  background: var(--glass);
  color: var(--white);
}

.lang-menu [role="option"].active {
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.45), rgba(56, 189, 248, 0.25));
  color: var(--white);
  font-weight: 600;
}

/* Font stacks per language */
body[data-lang="zh-CN"] {
  font-family: "Noto Sans SC", "Manrope", system-ui, sans-serif;
}
body[data-lang="zh-CN"] h1,
body[data-lang="zh-CN"] h2,
body[data-lang="zh-CN"] h3 {
  font-family: "Noto Sans SC", "Sora", sans-serif;
}

body[data-lang="zh-TW"] {
  font-family: "Noto Sans TC", "Manrope", system-ui, sans-serif;
}
body[data-lang="zh-TW"] h1,
body[data-lang="zh-TW"] h2,
body[data-lang="zh-TW"] h3 {
  font-family: "Noto Sans TC", "Sora", sans-serif;
}

body[data-lang="ja"] {
  font-family: "Noto Sans JP", "Manrope", system-ui, sans-serif;
}
body[data-lang="ja"] h1,
body[data-lang="ja"] h2,
body[data-lang="ja"] h3 {
  font-family: "Noto Sans JP", "Sora", sans-serif;
}

body[data-lang="ko"] {
  font-family: "Noto Sans KR", "Manrope", system-ui, sans-serif;
}
body[data-lang="ko"] h1,
body[data-lang="ko"] h2,
body[data-lang="ko"] h3 {
  font-family: "Noto Sans KR", "Sora", sans-serif;
}

body[data-lang="ar"] {
  font-family: "Noto Sans Arabic", "Manrope", system-ui, sans-serif;
}
body[data-lang="ar"] h1,
body[data-lang="ar"] h2,
body[data-lang="ar"] h3 {
  font-family: "Noto Sans Arabic", "Sora", sans-serif;
}

body[data-lang="hi"] {
  font-family: "Noto Sans Devanagari", "Manrope", system-ui, sans-serif;
}
body[data-lang="hi"] h1,
body[data-lang="hi"] h2,
body[data-lang="hi"] h3 {
  font-family: "Noto Sans Devanagari", "Sora", sans-serif;
}

/* RTL layout */
html[dir="rtl"] .dots {
  right: auto;
  left: 18px;
}

html[dir="rtl"] .lang-menu {
  right: auto;
  left: 0;
}

html[dir="rtl"] .bullet-list li {
  text-align: right;
}

html[dir="rtl"] .bullet-list li:hover {
  transform: translateX(-4px);
}

html[dir="rtl"] .store-badge .txt {
  text-align: right;
}

html[dir="rtl"] .float-badge.b1 {
  left: auto;
  right: 0;
}

html[dir="rtl"] .float-badge.b2 {
  right: auto;
  left: 0;
}

@media (max-width: 720px) {
  html[dir="rtl"] .dots {
    left: 10px;
  }
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: "Sora", sans-serif;
  font-weight: 600;
  font-size: 0.95rem;
  letter-spacing: -0.01em;
}

.brand img {
  width: 36px;
  height: 36px;
  border-radius: 9px;
  box-shadow: 0 4px 14px rgba(37, 99, 235, 0.45);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-links a {
  padding: 8px 14px;
  font-size: 0.86rem;
  color: rgba(255, 255, 255, 0.78);
  border-radius: 999px;
  transition: color 0.25s, background 0.25s;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--white);
  background: var(--glass);
}

.nav-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  flex-shrink: 0;
  height: 36px;
  padding: 0 14px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--blue-mid), var(--cyan));
  font-size: 0.84rem;
  font-weight: 600;
  line-height: 1;
  white-space: nowrap;
  box-shadow: 0 8px 24px rgba(37, 99, 235, 0.4);
  transition: transform 0.25s var(--ease), box-shadow 0.25s;
}

.nav-cta svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

.nav-cta span {
  white-space: nowrap;
  line-height: 1;
}

.nav-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 28px rgba(56, 189, 248, 0.45);
}

.nav-toggle {
  display: none;
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: var(--glass);
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 5px;
}

.nav-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  background: var(--white);
  border-radius: 2px;
  transition: 0.3s;
}

/* ---------- Sections (one-screen) ---------- */
.section {
  position: relative;
  z-index: 2;
  min-height: 100vh;
  min-height: 100dvh;
  scroll-snap-align: start;
  scroll-snap-stop: always;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: calc(var(--nav-h) + 28px) 24px 48px;
  overflow: hidden;
  isolation: isolate;
}

.section-inner {
  width: min(1080px, 100%);
  margin: 0 auto;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 28px;
}

.section-bg {
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
}

/* reveal */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}

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

.section.is-visible .reveal.d1 { transition-delay: 0.08s; }
.section.is-visible .reveal.d2 { transition-delay: 0.16s; }
.section.is-visible .reveal.d3 { transition-delay: 0.24s; }
.section.is-visible .reveal.d4 { transition-delay: 0.32s; }
.section.is-visible .reveal.d5 { transition-delay: 0.4s; }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border-radius: 999px;
  background: var(--glass);
  border: 1px solid var(--line);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--sky);
}

.eyebrow .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 10px var(--cyan);
  animation: pulse-dot 1.8s ease-in-out infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.55; transform: scale(0.85); }
}

h1, h2, h3 {
  font-family: "Sora", sans-serif;
  font-weight: 650;
  letter-spacing: -0.02em;
  line-height: 1.25;
}

h1 {
  font-size: clamp(1.65rem, 3.4vw, 2.35rem);
  max-width: 18ch;
}

h2 {
  font-size: clamp(1.35rem, 2.6vw, 1.85rem);
  max-width: 22ch;
}

h3 {
  font-size: 1.05rem;
}

.lead {
  font-size: clamp(0.9rem, 1.4vw, 1.02rem);
  color: rgba(255, 255, 255, 0.78);
  max-width: 46ch;
  line-height: var(--lh);
}

.muted {
  color: rgba(255, 255, 255, 0.62);
  font-size: 0.9rem;
  line-height: var(--lh);
}

/* ---------- Buttons ---------- */
.cta-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 12px 16px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 46px;
  padding: 0 22px;
  border-radius: 999px;
  font-size: 0.9rem;
  font-weight: 600;
  transition: transform 0.3s var(--ease), box-shadow 0.3s, background 0.3s,
    border-color 0.3s;
  position: relative;
  overflow: hidden;
}

.btn::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    120deg,
    transparent 30%,
    rgba(255, 255, 255, 0.28) 50%,
    transparent 70%
  );
  transform: translateX(-120%);
  transition: transform 0.6s var(--ease);
}

.btn:hover::after {
  transform: translateX(120%);
}

.btn-primary {
  background: linear-gradient(135deg, #1d4ed8, #38bdf8);
  box-shadow: 0 12px 32px rgba(37, 99, 235, 0.45);
}

.btn-primary:hover {
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 16px 40px rgba(56, 189, 248, 0.5);
}

.btn-ghost {
  background: var(--glass);
  border: 1px solid var(--line);
  backdrop-filter: blur(8px);
}

.btn-ghost:hover {
  transform: translateY(-3px);
  background: var(--glass-strong);
  border-color: rgba(255, 255, 255, 0.35);
}

.btn svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

/* ---------- Hero ---------- */
#hero {
  background:
    radial-gradient(ellipse 80% 55% at 50% 0%, rgba(56, 189, 248, 0.28), transparent 60%),
    radial-gradient(ellipse 50% 40% at 80% 80%, rgba(37, 99, 235, 0.35), transparent 55%),
    linear-gradient(165deg, #071433 0%, #0b1f4d 42%, #123a8c 100%);
}

.hero-logo-wrap {
  position: relative;
  width: min(200px, 42vw);
  aspect-ratio: 1;
  margin: 4px auto 0;
}

.hero-logo-glow {
  position: absolute;
  inset: -18%;
  z-index: 0;
  border-radius: 36%;
  background: radial-gradient(circle, rgba(56, 189, 248, 0.55), transparent 68%);
  animation: glow-breathe 4s ease-in-out infinite;
  filter: blur(8px);
}

@keyframes glow-breathe {
  0%, 100% { opacity: 0.65; transform: scale(0.95); }
  50% { opacity: 1; transform: scale(1.05); }
}

.hero-logo {
  position: relative;
  z-index: 1;
  width: 100%;
  height: 100%;
  border-radius: 28%;
  box-shadow: var(--shadow), 0 0 0 1px rgba(255, 255, 255, 0.12);
  animation: logo-float 5.5s ease-in-out infinite;
}

@keyframes logo-float {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  50% { transform: translateY(-10px) rotate(1.5deg); }
}

.orbit {
  position: absolute;
  inset: -12%;
  z-index: 3;
  border-radius: 50%;
  border: 1px dashed rgba(125, 211, 252, 0.25);
  animation: orbit-spin 22s linear infinite;
  pointer-events: none;
}

.orbit-item {
  position: absolute;
  z-index: 4;
  width: 34px;
  height: 34px;
  border-radius: 10px;
  background: rgba(15, 23, 42, 0.72);
  border: 1px solid rgba(255, 255, 255, 0.28);
  backdrop-filter: blur(6px);
  display: grid;
  place-items: center;
  font-size: 0.95rem;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.28);
}

.orbit-item:nth-child(1) { top: -6px; left: 50%; transform: translateX(-50%); }
.orbit-item:nth-child(2) { right: -6px; top: 50%; transform: translateY(-50%); }
.orbit-item:nth-child(3) { bottom: -6px; left: 50%; transform: translateX(-50%); }
.orbit-item:nth-child(4) { left: -6px; top: 50%; transform: translateY(-50%); }

@keyframes orbit-spin {
  to { transform: rotate(360deg); }
}

.orbit .orbit-item {
  animation: orbit-spin 22s linear infinite reverse;
}

.trust-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px 18px;
  margin-top: 4px;
}

.trust-chip {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.72);
}

.trust-chip i {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--mint);
  box-shadow: 0 0 8px var(--mint);
}

.scroll-hint {
  position: absolute;
  bottom: 22px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  font-size: 0.72rem;
  color: rgba(255, 255, 255, 0.5);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  z-index: 3;
  animation: hint-bob 2.2s ease-in-out infinite;
}

.scroll-hint .mouse {
  width: 20px;
  height: 32px;
  border: 1.5px solid rgba(255, 255, 255, 0.4);
  border-radius: 10px;
  position: relative;
}

.scroll-hint .mouse::after {
  content: "";
  position: absolute;
  top: 6px;
  left: 50%;
  width: 3px;
  height: 6px;
  margin-left: -1.5px;
  border-radius: 2px;
  background: var(--cyan);
  animation: wheel 1.6s ease-in-out infinite;
}

@keyframes hint-bob {
  0%, 100% { transform: translateX(-50%) translateY(0); opacity: 0.7; }
  50% { transform: translateX(-50%) translateY(6px); opacity: 1; }
}

@keyframes wheel {
  0% { opacity: 1; transform: translateY(0); }
  100% { opacity: 0; transform: translateY(10px); }
}

/* ---------- Features grid ---------- */
#features {
  background:
    radial-gradient(ellipse 60% 50% at 20% 30%, rgba(37, 99, 235, 0.25), transparent 55%),
    radial-gradient(ellipse 50% 40% at 85% 70%, rgba(16, 185, 129, 0.15), transparent 50%),
    linear-gradient(180deg, #0a1a42, #0d2558);
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px 20px;
  width: 100%;
  max-width: 860px;
}

.feature-card {
  position: relative;
  text-align: center;
  padding: 28px 22px 26px;
  border-radius: var(--radius);
  background: linear-gradient(160deg, rgba(255, 255, 255, 0.1), rgba(255, 255, 255, 0.04));
  border: 1px solid var(--line);
  backdrop-filter: blur(12px);
  overflow: hidden;
  transition: transform 0.4s var(--ease), border-color 0.4s, box-shadow 0.4s;
  cursor: default;
}

.feature-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at var(--mx, 50%) var(--my, 0%), rgba(56, 189, 248, 0.22), transparent 55%);
  opacity: 0;
  transition: opacity 0.35s;
  pointer-events: none;
}

.feature-card:hover {
  transform: translateY(-6px);
  border-color: rgba(125, 211, 252, 0.45);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.25);
}

.feature-card:hover::before {
  opacity: 1;
}

.feature-icon {
  width: 52px;
  height: 52px;
  margin: 0 auto 14px;
  border-radius: 16px;
  display: grid;
  place-items: center;
  font-size: 1.35rem;
  position: relative;
  z-index: 1;
}

.feature-card:nth-child(1) .feature-icon {
  background: linear-gradient(145deg, #2563eb, #38bdf8);
  box-shadow: 0 10px 24px rgba(37, 99, 235, 0.4);
}
.feature-card:nth-child(2) .feature-icon {
  background: linear-gradient(145deg, #059669, #34d399);
  box-shadow: 0 10px 24px rgba(5, 150, 105, 0.35);
}
.feature-card:nth-child(3) .feature-icon {
  background: linear-gradient(145deg, #d97706, #fbbf24);
  box-shadow: 0 10px 24px rgba(217, 119, 6, 0.35);
}
.feature-card:nth-child(4) .feature-icon {
  background: linear-gradient(145deg, #e11d48, #fb7185);
  box-shadow: 0 10px 24px rgba(225, 29, 72, 0.3);
}

.feature-card h3 {
  position: relative;
  z-index: 1;
  margin-bottom: 8px;
}

.feature-card p {
  position: relative;
  z-index: 1;
  font-size: 0.88rem;
  color: rgba(255, 255, 255, 0.7);
  line-height: var(--lh);
  max-width: 28ch;
  margin: 0 auto;
}

/* ---------- Detail panels ---------- */
#restore {
  background:
    radial-gradient(ellipse 55% 45% at 70% 40%, rgba(56, 189, 248, 0.22), transparent 60%),
    linear-gradient(160deg, #071433, #102a66);
}

#clean {
  background:
    radial-gradient(ellipse 50% 45% at 30% 50%, rgba(16, 185, 129, 0.2), transparent 55%),
    linear-gradient(160deg, #06201a, #0a2f3d 40%, #0d2558);
}

#contacts-vault {
  background:
    radial-gradient(ellipse 45% 40% at 25% 35%, rgba(245, 158, 11, 0.18), transparent 55%),
    radial-gradient(ellipse 45% 40% at 75% 65%, rgba(251, 113, 133, 0.16), transparent 55%),
    linear-gradient(180deg, #0b1f4d, #1a1040);
}

#trust {
  background:
    radial-gradient(ellipse 70% 50% at 50% 100%, rgba(37, 99, 235, 0.3), transparent 55%),
    linear-gradient(180deg, #0a1638, #071433);
}

#download {
  background:
    radial-gradient(ellipse 80% 60% at 50% 40%, rgba(56, 189, 248, 0.28), transparent 60%),
    linear-gradient(165deg, #071433, #123a8c 70%, #0b1f4d);
}

.detail-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px 48px;
  width: 100%;
  align-items: center;
  text-align: center;
}

.detail-copy {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}

.detail-copy .lead {
  max-width: 38ch;
}

.bullet-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  width: 100%;
  max-width: 360px;
  margin-top: 4px;
}

.bullet-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  text-align: left;
  padding: 12px 14px;
  border-radius: 14px;
  background: var(--glass);
  border: 1px solid var(--line);
  font-size: 0.88rem;
  color: rgba(255, 255, 255, 0.82);
  line-height: var(--lh);
  transition: transform 0.3s var(--ease), background 0.3s, border-color 0.3s;
}

.bullet-list li:hover {
  transform: translateX(4px);
  background: var(--glass-strong);
  border-color: rgba(125, 211, 252, 0.35);
}

.bullet-list .mark {
  flex-shrink: 0;
  width: 22px;
  height: 22px;
  border-radius: 7px;
  display: grid;
  place-items: center;
  font-size: 0.7rem;
  font-weight: 700;
  margin-top: 1px;
  background: linear-gradient(135deg, var(--blue-mid), var(--cyan));
}

#clean .bullet-list .mark {
  background: linear-gradient(135deg, #059669, #34d399);
}

.visual-stage {
  position: relative;
  width: 100%;
  max-width: 420px;
  margin: 0 auto;
  aspect-ratio: 1.05;
  display: grid;
  place-items: center;
}

.phone-frame {
  width: min(240px, 62%);
  aspect-ratio: 9 / 19.5;
  border-radius: 32px;
  background: #0b1220;
  border: 2px solid rgba(255, 255, 255, 0.22);
  box-shadow: var(--shadow), inset 0 0 0 1px rgba(255, 255, 255, 0.06);
  padding: 8px;
  position: relative;
  z-index: 2;
  overflow: hidden;
  animation: phone-tilt 7s ease-in-out infinite;
}

.phone-frame.phone-shot {
  padding: 7px;
  background: linear-gradient(160deg, #1e293b, #020617);
}

.phone-frame.phone-shot img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
  border-radius: 24px;
  display: block;
  background: #eef2f7;
}

@keyframes phone-tilt {
  0%, 100% { transform: rotate(-2deg) translateY(0); }
  50% { transform: rotate(2deg) translateY(-8px); }
}

.phone-notch {
  width: 42%;
  height: 8px;
  border-radius: 6px;
  background: #020617;
  margin: 0 auto 10px;
}

.phone-screen {
  height: calc(100% - 18px);
  border-radius: 16px;
  background: linear-gradient(180deg, #1e3a8a, #0f172a);
  padding: 12px 10px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.fake-bar {
  height: 8px;
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.15);
}

.fake-bar.short { width: 55%; }
.fake-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px;
  flex: 1;
}

.fake-tile {
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.12);
  animation: tile-pulse 2.8s ease-in-out infinite;
}

.fake-tile:nth-child(2) { animation-delay: 0.3s; background: rgba(56, 189, 248, 0.25); }
.fake-tile:nth-child(3) { animation-delay: 0.6s; background: rgba(16, 185, 129, 0.22); }
.fake-tile:nth-child(4) { animation-delay: 0.9s; background: rgba(251, 113, 133, 0.2); }

@keyframes tile-pulse {
  0%, 100% { opacity: 0.7; transform: scale(1); }
  50% { opacity: 1; transform: scale(1.03); }
}

.float-badge {
  position: absolute;
  z-index: 3;
  padding: 10px 14px;
  border-radius: 14px;
  background: rgba(15, 23, 42, 0.72);
  border: 1px solid rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(10px);
  font-size: 0.78rem;
  font-weight: 600;
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.3);
  animation: badge-float 4.5s ease-in-out infinite;
  white-space: nowrap;
}

.float-badge.b1 { top: 12%; left: 0; animation-delay: 0s; }
.float-badge.b2 { bottom: 18%; right: 0; animation-delay: 1.2s; }
.float-badge.b3 { top: 42%; right: -4%; animation-delay: 0.6s; }

@keyframes badge-float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

.ring {
  position: absolute;
  border-radius: 50%;
  border: 1px solid rgba(125, 211, 252, 0.2);
  z-index: 1;
  animation: ring-pulse 5s ease-out infinite;
}

.ring.r1 { width: 78%; aspect-ratio: 1; }
.ring.r2 { width: 96%; aspect-ratio: 1; animation-delay: 1.5s; }

@keyframes ring-pulse {
  0% { transform: scale(0.92); opacity: 0.55; }
  70% { opacity: 0.15; }
  100% { transform: scale(1.08); opacity: 0; }
}

/* dual cards for contacts+vault */
.dual-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  width: 100%;
  max-width: 880px;
}

.dual-card {
  padding: 32px 24px;
  border-radius: var(--radius);
  background: linear-gradient(165deg, rgba(255, 255, 255, 0.11), rgba(255, 255, 255, 0.03));
  border: 1px solid var(--line);
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  transition: transform 0.4s var(--ease), box-shadow 0.4s, border-color 0.4s;
  min-height: 280px;
  justify-content: center;
}

.dual-card:hover {
  transform: translateY(-8px) scale(1.01);
  border-color: rgba(255, 255, 255, 0.35);
  box-shadow: 0 24px 48px rgba(0, 0, 0, 0.28);
}

.dual-icon {
  width: 58px;
  height: 58px;
  border-radius: 18px;
  display: grid;
  place-items: center;
  font-size: 1.5rem;
  margin-bottom: 4px;
}

.dual-card.contacts .dual-icon {
  background: linear-gradient(145deg, #d97706, #fbbf24);
  box-shadow: 0 12px 28px rgba(217, 119, 6, 0.35);
}

.dual-card.vault .dual-icon {
  background: linear-gradient(145deg, #e11d48, #fb7185);
  box-shadow: 0 12px 28px rgba(225, 29, 72, 0.35);
}

.dual-card p {
  font-size: 0.88rem;
  color: rgba(255, 255, 255, 0.72);
  line-height: var(--lh);
  max-width: 28ch;
}

.dual-tags {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
  margin-top: 6px;
}

.dual-tags span {
  padding: 5px 10px;
  border-radius: 999px;
  font-size: 0.75rem;
  background: var(--glass);
  border: 1px solid var(--line);
  color: rgba(255, 255, 255, 0.8);
}

/* trust metrics */
.metric-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  width: 100%;
  max-width: 820px;
}

.metric {
  padding: 26px 16px;
  border-radius: var(--radius);
  background: var(--glass);
  border: 1px solid var(--line);
  transition: transform 0.35s var(--ease), background 0.35s;
}

.metric:hover {
  transform: translateY(-5px);
  background: var(--glass-strong);
}

.metric .num {
  font-family: "Sora", sans-serif;
  font-size: clamp(1.4rem, 2.5vw, 1.85rem);
  font-weight: 700;
  background: linear-gradient(135deg, #fff, var(--cyan));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  margin-bottom: 6px;
}

.metric .label {
  font-size: 0.84rem;
  color: rgba(255, 255, 255, 0.68);
  line-height: var(--lh);
}

.steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  width: 100%;
  max-width: 920px;
  margin-top: 8px;
}

.step {
  padding: 20px 14px;
  border-radius: 16px;
  background: linear-gradient(160deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.02));
  border: 1px solid var(--line);
  position: relative;
  transition: transform 0.35s var(--ease);
}

.step:hover {
  transform: translateY(-5px);
}

.step-num {
  font-family: "Sora", sans-serif;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--cyan);
  letter-spacing: 0.08em;
  margin-bottom: 8px;
}

.step h3 {
  font-size: 0.95rem;
  margin-bottom: 6px;
}

.step p {
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.65);
  line-height: var(--lh);
}

/* download */
.download-logo {
  width: 88px;
  height: 88px;
  border-radius: 24px;
  box-shadow: var(--shadow);
  margin-bottom: 4px;
}

.store-badge {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 12px 22px 12px 16px;
  border-radius: 14px;
  background: #000;
  border: 1px solid rgba(255, 255, 255, 0.25);
  transition: transform 0.3s var(--ease), box-shadow 0.3s;
}

.store-badge:hover {
  transform: translateY(-4px) scale(1.03);
  box-shadow: 0 16px 36px rgba(0, 0, 0, 0.4);
}

.store-badge svg {
  width: 28px;
  height: 28px;
}

.store-badge .txt {
  text-align: left;
  line-height: 1.2;
}

.store-badge .txt small {
  display: block;
  font-size: 0.68rem;
  opacity: 0.75;
}

.store-badge .txt strong {
  font-size: 1.05rem;
  font-family: "Sora", sans-serif;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px 20px;
  margin-top: 8px;
}

.footer-links a {
  font-size: 0.86rem;
  color: rgba(255, 255, 255, 0.7);
  border-bottom: 1px solid transparent;
  padding-bottom: 2px;
  transition: color 0.25s, border-color 0.25s;
}

.footer-links a:hover {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

.copyright {
  font-size: 0.78rem;
  color: rgba(255, 255, 255, 0.45);
  margin-top: 4px;
}

/* page dots */
.dots {
  position: fixed;
  right: 18px;
  top: 50%;
  transform: translateY(-50%);
  z-index: 90;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.dots button {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.28);
  border: 1px solid rgba(255, 255, 255, 0.2);
  transition: transform 0.3s, background 0.3s, height 0.3s;
}

.dots button.active {
  background: var(--cyan);
  box-shadow: 0 0 12px var(--cyan);
  height: 22px;
  border-radius: 8px;
}

.dots button:hover {
  background: rgba(255, 255, 255, 0.55);
}

/* mobile menu */
.mobile-panel {
  display: none;
  position: fixed;
  inset: var(--nav-h) 16px auto;
  z-index: 99;
  padding: 16px;
  border-radius: 16px;
  background: rgba(11, 31, 77, 0.94);
  border: 1px solid var(--line);
  backdrop-filter: blur(16px);
  flex-direction: column;
  gap: 4px;
  box-shadow: var(--shadow);
}

.mobile-panel.open {
  display: flex;
}

.mobile-panel a {
  padding: 12px 14px;
  border-radius: 10px;
  font-size: 0.92rem;
  text-align: center;
}

.mobile-panel a:hover {
  background: var(--glass);
}

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .detail-layout {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .visual-stage {
    order: -1;
    max-width: 320px;
    aspect-ratio: 1.15;
  }

  .steps {
    grid-template-columns: 1fr 1fr;
    gap: 12px;
  }

  .float-badge.b3 {
    display: none;
  }
}

@media (max-width: 720px) {
  .nav-links {
    display: none;
  }

  .nav-cta {
    display: none;
  }

  .nav-toggle {
    display: flex;
  }

  .lang-btn-label {
    max-width: 6.5em;
  }

  .lang-btn {
    padding: 0 10px;
    min-height: 34px;
  }

  .section {
    padding: calc(var(--nav-h) + 20px) 18px 40px;
  }

  .section-inner {
    gap: 22px;
  }

  .feature-grid,
  .dual-grid,
  .metric-row {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .dual-card {
    min-height: auto;
    padding: 24px 18px;
  }

  .steps {
    grid-template-columns: 1fr;
  }

  .dots {
    right: 10px;
    gap: 8px;
  }

  .dots button {
    width: 8px;
    height: 8px;
  }

  .dots button.active {
    height: 16px;
  }

  .hero-logo-wrap {
    width: min(160px, 46vw);
  }

  .scroll-hint {
    display: none;
  }

  h1 {
    max-width: 16ch;
  }
}

@media (max-height: 720px) {
  .section {
    min-height: auto;
    padding-top: calc(var(--nav-h) + 18px);
    padding-bottom: 36px;
  }

  .section-inner {
    gap: 18px;
  }

  .hero-logo-wrap {
    width: min(140px, 34vw);
  }

  .dual-card {
    min-height: auto;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }
}