:root {
  /* Locked to website/assets/logo.svg */
  --primary: #0B6E4F;
  --primary-bright: #1AA36F;
  --wave: #3DDC97;
  --accent: #D97706;
  --accent-bright: #FBBF24;
  --accent-ink: #1A1205;
  --paper: #0F141A;
  --paper-2: #10171E;
  --paper-deep: #0A0E12;
  --forest: #1A4A38;
  --vinyl-deep: #043828;
  --surface: #151C24;
  --surface-2: #1B2430;
  --ink: #F2F5F7;
  --muted: #8A97A4;
  --line: rgba(242, 245, 247, 0.1);
  --line-strong: rgba(242, 245, 247, 0.16);
  --danger: #E11D48;
  --radius: 18px;
  --max: 1120px;
  --nav-h: 72px;
  --font-display: "Figtree", system-ui, sans-serif;
  --font-body: "Figtree", system-ui, sans-serif;
}

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

html { scroll-behavior: smooth; }

html[lang="en"] .i18n-zh,
html[lang="zh-CN"] .i18n-en { display: none !important; }

body {
  margin: 0;
  min-height: 100%;
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  background:
    radial-gradient(900px 420px at 8% -10%, rgba(26, 74, 56, 0.55), transparent 56%),
    radial-gradient(720px 380px at 96% 0%, rgba(217, 119, 6, 0.14), transparent 50%),
    linear-gradient(180deg, var(--paper-2) 0%, var(--paper) 28%, var(--paper-deep) 100%);
  -webkit-font-smoothing: antialiased;
}

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

.wrap {
  width: min(var(--max), calc(100% - 40px));
  margin-inline: auto;
}

/* ——— Nav ——— */
.site-nav {
  position: sticky;
  top: 0;
  z-index: 40;
  height: var(--nav-h);
  backdrop-filter: blur(16px);
  background: rgba(15, 20, 26, 0.78);
  border-bottom: 1px solid var(--line);
}

.site-nav .wrap {
  height: 100%;
  display: flex;
  align-items: center;
  gap: 28px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  flex-shrink: 0;
}

.brand img,
.brand svg {
  width: 40px;
  height: 40px;
  border-radius: 11px;
}

.brand-name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.2rem;
  letter-spacing: -0.02em;
}

.brand-name em {
  font-style: normal;
  color: var(--accent);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 18px;
  margin-left: auto;
}

.nav-links a {
  text-decoration: none;
  color: var(--muted);
  font-size: 0.92rem;
  font-weight: 500;
}

.nav-links a:hover,
.nav-links a.on { color: var(--ink); }

.lang-switch {
  display: flex;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  overflow: hidden;
  background: var(--surface);
}

.lang-switch button {
  border: 0;
  background: transparent;
  color: var(--muted);
  font: inherit;
  font-size: 0.8rem;
  font-weight: 600;
  padding: 6px 10px;
  cursor: pointer;
}

.lang-switch button[aria-pressed="true"] {
  background: var(--primary);
  color: var(--ink);
}

.nav-toggle {
  display: none;
  margin-left: auto;
  width: 42px;
  height: 42px;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: var(--surface);
  color: var(--ink);
  cursor: pointer;
}

/* ——— Buttons ——— */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 48px;
  padding: 0 20px;
  border-radius: 12px;
  text-decoration: none;
  font-weight: 650;
  border: 1px solid transparent;
  cursor: pointer;
  font-family: inherit;
  font-size: 1rem;
}

.btn-accent {
  background: var(--accent);
  color: var(--accent-ink);
}

.btn-accent:hover { filter: brightness(1.06); }

.btn-ghost {
  background: transparent;
  color: var(--ink);
  border-color: var(--line-strong);
}

.btn-ghost:hover { background: var(--surface-2); }

.btn-primary {
  background: var(--primary);
  color: var(--ink);
}

.btn-primary:hover { background: var(--primary-bright); }

/* ——— Hero ——— */
.hero {
  padding: 72px 0 40px;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: center;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--wave);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

h1, h2, h3, .display {
  font-family: var(--font-display);
  letter-spacing: -0.02em;
  line-height: 1.22;
  font-weight: 700;
}

.hero h1 {
  margin: 0 0 18px;
  font-size: clamp(2.1rem, 4.2vw, 3.2rem);
  font-weight: 700;
}

.lead {
  margin: 0 0 28px;
  color: var(--muted);
  font-size: 1.12rem;
  max-width: 42ch;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 22px;
}

.fine {
  margin: 0;
  color: var(--muted);
  font-size: 0.88rem;
}

.fine a { color: var(--wave); }

.hero-visual {
  position: relative;
  display: grid;
  place-items: center;
  min-height: 420px;
}

.hero-visual .orb {
  position: absolute;
  width: 340px;
  height: 340px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(11, 110, 79, 0.35), transparent 68%);
  filter: blur(8px);
}

.hero-logo {
  position: relative;
  width: min(300px, 72vw);
  border-radius: 68px;
}

.hero-chip {
  position: absolute;
  right: 4%;
  bottom: 12%;
  padding: 10px 14px;
  border-radius: 12px;
  background: var(--surface);
  border: 1px solid var(--line);
  font-size: 0.82rem;
  color: var(--muted);
  z-index: 2;
}

.hero-chip strong { color: var(--ink); display: block; }

.hero-chip.alt {
  right: auto;
  left: 2%;
  bottom: auto;
  top: 14%;
}

/* Phone mock */
.phone {
  position: relative;
  width: min(280px, 70vw);
  aspect-ratio: 9 / 18.4;
  border-radius: 36px;
  padding: 10px;
  background: linear-gradient(180deg, #2A3340, #151C24);
  border: 1px solid var(--line-strong);
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.45);
  z-index: 1;
}

.phone-screen {
  height: 100%;
  border-radius: 28px;
  background:
    radial-gradient(180px 120px at 50% 0%, rgba(11, 110, 79, 0.35), transparent 70%),
    #0B1015;
  padding: 22px 16px 16px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.phone-notch {
  width: 86px;
  height: 8px;
  border-radius: 99px;
  background: #1A222C;
  margin: 0 auto 6px;
}

.phone-now {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 14px;
}

.now-row {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 10px;
}

.now-art {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  flex-shrink: 0;
}

.phone-now .t {
  font-size: 0.72rem;
  color: var(--muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.phone-now strong {
  display: block;
  margin: 2px 0 0;
  font-size: 1.02rem;
}

.bars {
  display: flex;
  align-items: flex-end;
  gap: 6px;
  height: 46px;
}

.bars i {
  display: block;
  width: 9px;
  border-radius: 99px;
  background: var(--wave);
  animation: pulse 1.4s ease-in-out infinite;
}

.bars i:nth-child(4) { background: var(--accent); }
.bars i:nth-child(1) { height: 50%; }
.bars i:nth-child(2) { height: 90%; }
.bars i:nth-child(3) { height: 44%; }
.bars i:nth-child(4) { height: 100%; }
.bars i:nth-child(5) { height: 60%; }

@keyframes pulse {
  0%, 100% { transform: scaleY(0.7); }
  50% { transform: scaleY(1); }
}

.phone-list {
  display: grid;
  gap: 8px;
}

.phone-row {
  display: flex;
  justify-content: space-between;
  gap: 8px;
  padding: 10px 12px;
  border-radius: 12px;
  background: var(--surface);
  border: 1px solid var(--line);
  font-size: 0.82rem;
}

.phone-row span { color: var(--muted); }

/* ——— Sections ——— */
section { padding: 72px 0; }

.section-head {
  max-width: 640px;
  margin-bottom: 36px;
}

.section-head h2 {
  margin: 0 0 10px;
  font-size: clamp(1.8rem, 3vw, 2.4rem);
}

.section-head p { margin: 0; color: var(--muted); }

.section-head.wide { max-width: none; }

.grid-4,
.grid-3,
.grid-2 {
  display: grid;
  gap: 16px;
}

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

.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px 22px 20px;
}

.card h3 {
  margin: 12px 0 8px;
  font-size: 1.2rem;
}

.card p { margin: 0; color: var(--muted); font-size: 0.95rem; }

.card .mark {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  background: rgba(11, 110, 79, 0.22);
  color: var(--wave);
  font-weight: 700;
}

.card.accent-card .mark {
  background: rgba(217, 119, 6, 0.16);
  color: var(--accent);
}

.card a.more {
  display: inline-block;
  margin-top: 14px;
  color: var(--wave);
  font-weight: 600;
  font-size: 0.9rem;
  text-decoration: none;
}

.card a.more:hover { text-decoration: underline; }

.card:hover { border-color: var(--line-strong); }

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

.step {
  padding: 24px;
  border-radius: var(--radius);
  background: linear-gradient(180deg, var(--surface-2), var(--surface));
  border: 1px solid var(--line);
}

.step .n {
  font-family: var(--font-display);
  font-weight: 800;
  color: var(--accent);
  font-size: 1.4rem;
}

.step h3 { margin: 8px 0; }
.step p { margin: 0; color: var(--muted); }

.privacy-strip,
.cta-strip {
  border-radius: 24px;
  padding: 36px;
  background:
    linear-gradient(135deg, rgba(11, 110, 79, 0.28), transparent 50%),
    var(--surface);
  border: 1px solid var(--line);
  display: grid;
  grid-template-columns: 1.3fr 0.7fr;
  gap: 24px;
  align-items: center;
}

.privacy-strip ul,
.cta-strip ul {
  margin: 14px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 8px;
  color: var(--muted);
}

.privacy-strip li::before,
.cta-strip li::before {
  content: "";
  display: inline-block;
  width: 8px;
  height: 8px;
  margin-right: 10px;
  border-radius: 50%;
  background: var(--wave);
}

.premium {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 24px;
  padding: 36px;
}

.premium-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 18px 0 0;
}

.pill {
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(217, 119, 6, 0.14);
  color: #FBBF24;
  font-size: 0.88rem;
  font-weight: 600;
}

.pill.green {
  background: rgba(11, 110, 79, 0.22);
  color: var(--wave);
}

/* Stats */
.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  margin-top: 36px;
}

.stat {
  padding: 18px 16px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: rgba(21, 28, 36, 0.7);
}

.stat strong {
  display: block;
  font-family: var(--font-display);
  font-size: 1.35rem;
  letter-spacing: -0.02em;
}

.stat span {
  color: var(--muted);
  font-size: 0.86rem;
}

/* Page hero */
.page-hero {
  padding: 56px 0 12px;
}

.page-hero h1 {
  margin: 0 0 12px;
  font-size: clamp(2rem, 4vw, 3.2rem);
}

.page-hero .lead { margin-bottom: 0; }

.crumb {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 16px;
  color: var(--muted);
  font-size: 0.86rem;
}

.crumb a { color: var(--wave); text-decoration: none; }

.subnav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 28px 0 0;
}

.subnav a {
  text-decoration: none;
  padding: 8px 12px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--surface);
  color: var(--muted);
  font-size: 0.86rem;
  font-weight: 600;
}

.subnav a.on,
.subnav a:hover {
  color: var(--ink);
  border-color: var(--primary);
  background: rgba(11, 110, 79, 0.22);
}

/* Split */
.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
  align-items: center;
}

.split.reverse > :first-child { order: 2; }

.split-panel {
  border: 1px solid var(--line);
  background: var(--surface);
  border-radius: 22px;
  padding: 28px;
  min-height: 220px;
}

.split-panel .big {
  font-family: var(--font-display);
  font-size: 3rem;
  color: var(--accent);
  margin: 0 0 8px;
}

/* Compare / pricing */
.compare {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.94rem;
}

.compare th,
.compare td {
  border-bottom: 1px solid var(--line);
  padding: 14px 12px;
  text-align: left;
  vertical-align: top;
}

.compare th {
  color: var(--ink);
  font-family: var(--font-display);
}

.compare td { color: #C5CED6; }

.compare .ok { color: var(--wave); font-weight: 700; }
.compare .no { color: var(--muted); }

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

.price {
  padding: 22px 20px;
  border-radius: 20px;
  border: 1px solid var(--line);
  background: var(--surface);
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.price.featured {
  border-color: rgba(217, 119, 6, 0.45);
  background:
    linear-gradient(180deg, rgba(217, 119, 6, 0.12), transparent 40%),
    var(--surface);
}

.price .plan {
  font-family: var(--font-display);
  font-size: 1.2rem;
  margin: 0;
}

.price .amt {
  font-family: var(--font-display);
  font-size: 1.8rem;
  letter-spacing: -0.02em;
}

.price p { margin: 0; color: var(--muted); font-size: 0.9rem; }
.price .btn { margin-top: 10px; }

/* FAQ */
.faq-list { display: grid; gap: 10px; }

.faq-item {
  border: 1px solid var(--line);
  background: var(--surface);
  border-radius: 14px;
  overflow: hidden;
}

.faq-q {
  width: 100%;
  text-align: left;
  background: transparent;
  border: 0;
  color: var(--ink);
  font: inherit;
  font-weight: 650;
  padding: 16px 18px;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  gap: 16px;
}

.faq-q::after {
  content: "+";
  color: var(--accent);
  font-weight: 800;
}

.faq-item.open .faq-q::after { content: "–"; }

.faq-a {
  display: none;
  padding: 0 18px 16px;
  color: var(--muted);
}

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

/* Forms / contact */
.form {
  display: grid;
  gap: 12px;
}

.form label {
  display: grid;
  gap: 6px;
  font-size: 0.88rem;
  font-weight: 600;
}

.form input,
.form textarea,
.form select {
  width: 100%;
  border: 1px solid var(--line-strong);
  background: #0B1015;
  color: var(--ink);
  border-radius: 10px;
  padding: 12px 12px;
  font: inherit;
}

.form textarea { min-height: 140px; resize: vertical; }

.contact-card {
  display: grid;
  gap: 6px;
}

.contact-card a { color: var(--wave); }

/* Download stores */
.store {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 18px 18px;
  border-radius: 16px;
  border: 1px solid var(--line);
  background: var(--surface);
  text-decoration: none;
}

.store .mark {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  background: rgba(11, 110, 79, 0.22);
  color: var(--wave);
  font-weight: 800;
}

.store strong { display: block; }
.store span { color: var(--muted); font-size: 0.88rem; }

/* Legal */
.legal-hero { padding: 48px 0 12px; }

.legal-hero h1 {
  margin: 0 0 10px;
  font-size: clamp(2rem, 4vw, 3rem);
}

.meta-line {
  color: var(--muted);
  font-size: 0.92rem;
}

.legal-layout {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 40px;
  padding: 28px 0 80px;
  align-items: start;
}

.toc {
  position: sticky;
  top: calc(var(--nav-h) + 16px);
  border: 1px solid var(--line);
  background: var(--surface);
  border-radius: 16px;
  padding: 16px 14px;
}

.toc p {
  margin: 0 0 10px;
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  font-weight: 700;
}

.toc a {
  display: block;
  text-decoration: none;
  color: var(--muted);
  font-size: 0.86rem;
  padding: 6px 8px;
  border-radius: 8px;
}

.toc a:hover,
.toc a.active {
  color: var(--ink);
  background: rgba(11, 110, 79, 0.18);
}

.prose { max-width: 760px; }

.prose h2 {
  margin: 40px 0 12px;
  font-size: 1.45rem;
  padding-top: 8px;
  scroll-margin-top: calc(var(--nav-h) + 16px);
}

.prose h3 {
  margin: 24px 0 8px;
  font-size: 1.08rem;
}

.prose p,
.prose li { color: #C5CED6; }

.prose ul,
.prose ol { padding-left: 1.2em; }

.prose table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
  margin: 14px 0 22px;
}

.prose th,
.prose td {
  border: 1px solid var(--line);
  padding: 10px 12px;
  text-align: left;
  vertical-align: top;
}

.prose th {
  background: var(--surface-2);
  color: var(--ink);
  font-weight: 650;
}

.prose td { color: #C5CED6; }

.note {
  border-left: 3px solid var(--accent);
  background: rgba(217, 119, 6, 0.08);
  padding: 12px 14px;
  border-radius: 0 12px 12px 0;
  color: #E8D5B5;
}

.callout {
  border-left: 3px solid var(--wave);
  background: rgba(11, 110, 79, 0.12);
  padding: 12px 14px;
  border-radius: 0 12px 12px 0;
}

/* Footer */
.site-foot {
  border-top: 1px solid var(--line);
  padding: 48px 0 36px;
  color: var(--muted);
  font-size: 0.9rem;
}

.foot-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 10px;
  text-decoration: none;
}

.foot-brand img {
  width: 40px;
  height: 40px;
  border-radius: 11px;
}

.foot-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 28px;
}

.site-foot a {
  color: var(--ink);
  text-decoration: none;
}

.site-foot nav {
  display: grid;
  gap: 8px;
}

.site-foot h4 {
  margin: 0 0 10px;
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
}

.foot-bottom {
  margin-top: 32px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}

.swatches {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
}

.swatch {
  border: 1px solid var(--line);
  border-radius: 14px;
  overflow: hidden;
  background: var(--surface);
}

.swatch i {
  display: block;
  height: 72px;
}

.swatch p {
  margin: 0;
  padding: 10px 12px 12px;
  font-size: 0.86rem;
  color: var(--muted);
}

.swatch strong {
  display: block;
  color: var(--ink);
}

.dl {
  margin: 0;
  display: grid;
  gap: 14px;
}

.dl div {
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line);
}

.dl div:last-child { border-bottom: 0; padding-bottom: 0; }

.dl dt {
  font-weight: 700;
  margin: 0 0 4px;
}

.dl dd {
  margin: 0;
  color: var(--muted);
}

.ol-plain {
  margin: 0;
  padding-left: 1.2em;
  display: grid;
  gap: 12px;
  color: var(--muted);
}

.ol-plain strong { color: var(--ink); }

.store-shot {
  display: block;
  width: min(340px, 100%);
  height: auto;
  margin-inline: auto;
  border-radius: 18px;
}

.hero .store-shot { width: min(360px, 78vw); }

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

.feature-row + .feature-row { margin-top: 72px; }

.feature-copy h2 { margin: 0 0 12px; font-size: clamp(1.7rem, 3vw, 2.3rem); }
.feature-copy p { margin: 0 0 14px; color: var(--muted); }
.feature-copy ul {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 8px;
  color: var(--ink);
}
.feature-copy li::before {
  content: "";
  display: inline-block;
  width: 7px;
  height: 7px;
  margin-right: 10px;
  border-radius: 99px;
  background: var(--wave);
}

.shot-card {
  padding: 0;
  overflow: hidden;
}
.shot-card img {
  width: 100%;
  height: auto;
  max-height: 440px;
  object-fit: cover;
  object-position: top center;
  display: block;
}
.shot-card .pad { padding: 18px 20px 20px; }

@media (max-width: 1080px) {
  .grid-4,
  .price-grid,
  .stats,
  .swatches,
  .foot-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 900px) {
  .hero,
  .privacy-strip,
  .cta-strip,
  .legal-layout,
  .grid-3,
  .grid-2,
  .steps,
  .split,
  .split.reverse,
  .feature-row { grid-template-columns: 1fr; }

  .split.reverse > :first-child { order: 0; }

  .nav-toggle { display: grid; place-items: center; }

  .nav-links {
    display: none;
    position: absolute;
    inset: var(--nav-h) 16px auto;
    padding: 16px;
    flex-direction: column;
    align-items: stretch;
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: 14px;
    margin-left: 0;
    max-height: calc(100vh - var(--nav-h) - 24px);
    overflow: auto;
  }

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

  .toc { position: static; }

  .hero { padding-top: 40px; }
}

@media (max-width: 640px) {
  .grid-4,
  .price-grid,
  .stats,
  .swatches,
  .foot-grid { grid-template-columns: 1fr; }

  .hero-chip.alt { display: none; }
}