:root {
  color-scheme: light;
  --bg: #fff8f4;
  --panel: rgba(255, 255, 255, 0.82);
  --panel-solid: #ffffff;
  --ink: #2f201c;
  --muted: #786a65;
  --coral: #ff6b62;
  --coral-2: #ff9b86;
  --mint: #55d2ac;
  --mint-2: #dff8ef;
  --lemon: #ffd166;
  --cream: #fff1e7;
  --rose-soft: #fff0ef;
  --blue: #8f7cff;
  --violet: #a98bff;
  --line: rgba(83, 54, 48, 0.12);
  --line-strong: rgba(83, 54, 48, 0.18);
  --shadow: 0 28px 76px rgba(150, 78, 66, 0.16);
  --shadow-soft: 0 14px 34px rgba(150, 78, 66, 0.09);
  --radius: 24px;
  --radius-sm: 16px;
  --ease: 180ms cubic-bezier(0.22, 1, 0.36, 1);
}

[data-theme="dark"] {
  color-scheme: dark;
  --bg: #171112;
  --panel: rgba(42, 31, 33, 0.78);
  --panel-solid: #241b1e;
  --ink: #fff8f4;
  --muted: #d5c4bd;
  --coral: #ff8179;
  --coral-2: #ffb199;
  --mint: #73e4bf;
  --mint-2: rgba(115, 228, 191, 0.13);
  --lemon: #f8d66d;
  --cream: #2c2020;
  --rose-soft: rgba(255, 129, 121, 0.12);
  --blue: #b4a4ff;
  --violet: #c4a8ff;
  --line: rgba(255, 241, 234, 0.14);
  --line-strong: rgba(255, 241, 234, 0.22);
  --shadow: 0 30px 90px rgba(0, 0, 0, 0.34);
  --shadow-soft: 0 16px 44px rgba(0, 0, 0, 0.24);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "SF Pro Display", "PingFang SC", "Microsoft YaHei", sans-serif;
  color: var(--ink);
  background:
    radial-gradient(circle at 16% 8%, color-mix(in srgb, var(--coral), transparent 70%), transparent 28rem),
    radial-gradient(circle at 82% 12%, color-mix(in srgb, var(--mint), transparent 76%), transparent 24rem),
    radial-gradient(circle at 50% 54%, color-mix(in srgb, var(--cream), transparent 28%), transparent 30rem),
    linear-gradient(180deg, var(--bg), color-mix(in srgb, var(--bg), var(--panel-solid) 34%));
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background-image:
    linear-gradient(color-mix(in srgb, var(--line), transparent 45%) 1px, transparent 1px),
    linear-gradient(90deg, color-mix(in srgb, var(--line), transparent 45%) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: linear-gradient(to bottom, black, transparent 72%);
}

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

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

.skip-link {
  position: absolute;
  left: 1rem;
  top: -3rem;
  padding: .75rem 1rem;
  background: var(--ink);
  color: var(--bg);
  border-radius: 999px;
  z-index: 10;
}

.skip-link:focus {
  top: 1rem;
}

.site-shell {
  width: min(1184px, calc(100% - 32px));
  margin: 0 auto;
}

.topbar {
  position: sticky;
  top: 16px;
  z-index: 5;
  margin: 16px 0 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 10px 12px;
  border: 1px solid var(--line);
  background: color-mix(in srgb, var(--panel), transparent 2%);
  backdrop-filter: blur(22px);
  border-radius: 22px;
  box-shadow: var(--shadow-soft);
}

.topbar.compact {
  margin-bottom: 42px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
}

.brand img {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  box-shadow: 0 12px 28px rgba(255, 107, 98, 0.24);
}

.brand span {
  display: grid;
  gap: 1px;
}

.brand strong {
  font-size: 1rem;
  letter-spacing: 0;
}

.brand small {
  color: var(--muted);
  font-weight: 650;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--muted);
  font-weight: 700;
  font-size: .92rem;
}

.nav-links a {
  padding: 9px 12px;
  border-radius: 999px;
  transition:
    color var(--ease),
    background var(--ease),
    transform var(--ease);
}

.nav-links a:hover {
  color: var(--coral);
  background: color-mix(in srgb, var(--coral), transparent 90%);
  transform: translateY(-1px);
}

.top-actions {
  display: flex;
  gap: 8px;
}

.icon-button {
  appearance: none;
  border: 1px solid var(--line);
  color: var(--ink);
  background: color-mix(in srgb, var(--panel-solid), transparent 8%);
  border-radius: 999px;
  min-width: 42px;
  height: 42px;
  padding: 0 12px;
  font-weight: 800;
  cursor: pointer;
  transition:
    transform var(--ease),
    border-color var(--ease),
    box-shadow var(--ease),
    background var(--ease);
}

.icon-button:hover {
  transform: translateY(-1px);
  border-color: color-mix(in srgb, var(--coral), var(--line) 30%);
  box-shadow: var(--shadow-soft);
}

.section-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.02fr) minmax(320px, .98fr);
  align-items: center;
  gap: 64px;
}

.hero {
  min-height: calc(100vh - 170px);
  padding-bottom: 56px;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--coral);
  font-size: .82rem;
  font-weight: 800;
  letter-spacing: 0;
}

h1, h2, h3, p {
  margin-top: 0;
}

h1 {
  margin-bottom: 18px;
  font-size: clamp(3.3rem, 8vw, 7rem);
  line-height: .88;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 14px;
  font-size: clamp(2rem, 4.2vw, 3.8rem);
  line-height: 1.02;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 10px;
  font-size: 1.16rem;
}

p {
  color: var(--muted);
  line-height: 1.75;
}

.hero-subtitle {
  max-width: 680px;
  font-size: 1.16rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 30px 0;
}

.primary-button,
.secondary-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 50px;
  padding: 0 22px;
  border-radius: 12px;
  font-weight: 800;
  transition:
    transform var(--ease),
    box-shadow var(--ease),
    border-color var(--ease),
    background var(--ease);
}

.primary-button {
  color: white;
  background: linear-gradient(135deg, var(--coral), var(--coral-2));
  box-shadow: 0 18px 34px rgba(255, 107, 98, 0.28);
}

.secondary-button {
  background: var(--panel-solid);
  border: 1px solid var(--line);
}

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: -12px 0 26px;
}

.hero-meta span {
  display: inline-flex;
  align-items: center;
  min-height: 32px;
  padding: 0 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  background: color-mix(in srgb, var(--panel-solid), transparent 8%);
  font-size: .84rem;
  font-weight: 750;
  box-shadow: 0 8px 20px rgba(150, 78, 66, 0.05);
}

.primary-button:hover,
.secondary-button:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-soft);
}

.trust-strip {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  margin: 0;
}

.trust-strip div {
  padding: 16px;
  border: 1px solid var(--line);
  background: var(--panel);
  border-radius: var(--radius-sm);
  box-shadow: 0 8px 22px rgba(150, 78, 66, 0.05);
}

.trust-strip dt {
  font-weight: 850;
}

.trust-strip dd {
  margin: 5px 0 0;
  color: var(--muted);
  font-size: .86rem;
}

.hero-visual {
  position: relative;
  min-height: 590px;
  display: grid;
  place-items: center;
}

.phone-card {
  width: min(360px, 78vw);
  margin: 0;
  border-radius: 38px;
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--panel-solid);
  box-shadow: var(--shadow);
  animation: floaty 6s ease-in-out infinite;
}

.phone-card img,
.screenshot-row img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.tilted {
  transform: rotate(-3deg);
}

.mini-card {
  position: absolute;
  right: 2%;
  bottom: 78px;
  width: min(260px, 64vw);
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: var(--panel);
  backdrop-filter: blur(18px);
  box-shadow: var(--shadow);
}

.mini-card strong,
.mini-card span {
  display: block;
}

.mini-card span {
  margin-top: 6px;
  color: var(--muted);
  line-height: 1.6;
}

.bubble {
  position: absolute;
  display: grid;
  place-items: center;
  width: 54px;
  height: 54px;
  border-radius: 16px;
  background: var(--panel-solid);
  box-shadow: var(--shadow);
  font-weight: 950;
  animation: bob 4s ease-in-out infinite;
}

.bubble-a {
  left: 8%;
  top: 12%;
  color: var(--coral);
}

.bubble-b {
  right: 6%;
  top: 15%;
  animation-delay: .4s;
}

.bubble-c {
  left: 11%;
  bottom: 16%;
  color: var(--mint);
  animation-delay: .8s;
}

.feature-band,
.recommend-section,
.membership-section,
.privacy-section,
.domains-section,
.legal-card,
.legal-hero {
  margin: 72px 0;
  padding: clamp(24px, 5vw, 54px);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}

.section-heading {
  max-width: 760px;
  margin-bottom: 28px;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.feature-card {
  padding: 22px;
  min-height: 220px;
  border-radius: 18px;
  border: 1px solid var(--line);
  background: color-mix(in srgb, var(--panel-solid), transparent 12%);
  box-shadow: 0 10px 26px rgba(150, 78, 66, 0.05);
  transition:
    transform var(--ease),
    border-color var(--ease),
    box-shadow var(--ease);
}

.feature-card:hover {
  transform: translateY(-5px);
  border-color: color-mix(in srgb, var(--coral), var(--line) 30%);
  box-shadow: var(--shadow-soft);
}

.feature-icon {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  margin-bottom: 18px;
  color: white;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--coral), var(--mint));
  font-weight: 850;
}

.recommend-section {
  margin: 92px 0;
}

.recommend-copy {
  align-self: center;
}

.check-list {
  display: grid;
  gap: 12px;
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
}

.check-list li {
  position: relative;
  padding: 14px 16px 14px 46px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--panel);
  color: var(--ink);
  font-weight: 750;
}

.check-list li::before {
  content: "✓";
  position: absolute;
  left: 14px;
  top: 50%;
  width: 22px;
  height: 22px;
  display: grid;
  place-items: center;
  color: white;
  background: var(--mint);
  border-radius: 999px;
  transform: translateY(-50%);
  font-size: .8rem;
}

.recommend-panel {
  display: grid;
  gap: 14px;
  padding: clamp(18px, 4vw, 34px);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background:
    linear-gradient(135deg, color-mix(in srgb, var(--coral), transparent 88%), transparent),
    var(--panel);
  box-shadow: var(--shadow);
}

.recommend-card {
  display: grid;
  grid-template-columns: 52px 1fr auto;
  gap: 14px;
  align-items: center;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--panel-solid);
  box-shadow: 0 8px 20px rgba(150, 78, 66, 0.04);
  transition:
    transform var(--ease),
    border-color var(--ease),
    box-shadow var(--ease);
}

.recommend-card:hover,
.recommend-card.active {
  transform: translateX(6px);
  border-color: color-mix(in srgb, var(--coral), var(--line) 25%);
  box-shadow: var(--shadow-soft);
}

.recommend-card span {
  display: grid;
  place-items: center;
  width: 52px;
  height: 52px;
  border-radius: 14px;
  background: color-mix(in srgb, var(--coral), transparent 88%);
  font-size: 1.5rem;
}

.recommend-card strong,
.recommend-card small {
  display: block;
}

.recommend-card small {
  margin-top: 4px;
  color: var(--muted);
  line-height: 1.5;
}

.recommend-card em {
  padding: 8px 10px;
  border-radius: 999px;
  color: var(--coral);
  background: color-mix(in srgb, var(--coral), transparent 90%);
  font-size: .82rem;
  font-style: normal;
  font-weight: 850;
  white-space: nowrap;
}

.membership-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.plan-card {
  position: relative;
  min-height: 320px;
  padding: clamp(22px, 4vw, 34px);
  border: 1px solid var(--line);
  border-radius: 20px;
  background: var(--panel-solid);
  overflow: hidden;
  box-shadow: 0 10px 26px rgba(150, 78, 66, 0.05);
  transition:
    transform var(--ease),
    border-color var(--ease),
    box-shadow var(--ease);
}

.plan-card:hover {
  transform: translateY(-4px);
  border-color: color-mix(in srgb, var(--coral), var(--line) 30%);
  box-shadow: var(--shadow-soft);
}

.plan-card::after {
  content: "";
  position: absolute;
  inset: auto -40px -80px auto;
  width: 180px;
  height: 180px;
  border-radius: 50%;
  background: color-mix(in srgb, var(--mint), transparent 68%);
  pointer-events: none;
}

.plan-card.highlighted {
  border-color: color-mix(in srgb, var(--coral), var(--line) 30%);
  background:
    linear-gradient(135deg, color-mix(in srgb, var(--coral), transparent 86%), transparent),
    var(--panel-solid);
}

.plan-badge {
  display: inline-flex;
  margin-bottom: 18px;
  padding: 8px 12px;
  border-radius: 999px;
  color: white;
  background: linear-gradient(135deg, var(--coral), var(--coral-2));
  font-size: .82rem;
  font-weight: 850;
}

.plan-card ul {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 10px;
  margin: 20px 0 0;
  padding-left: 1.1rem;
  color: var(--muted);
  line-height: 1.7;
}

.screens-section {
  margin: 92px 0;
}

.screen-copy {
  align-self: start;
  padding-top: 34px;
}

.screenshot-row {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  align-items: end;
  gap: 12px;
}

.screenshot-row img {
  aspect-ratio: 9 / 19.5;
  border-radius: 26px;
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  background: var(--panel-solid);
}

.screenshot-row img:nth-child(2) {
  transform: translateY(-24px);
}

.policy-links,
.domain-pills {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.policy-card,
.domain-pills a {
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: var(--panel-solid);
  transition:
    transform var(--ease),
    border-color var(--ease),
    box-shadow var(--ease);
}

.policy-card:hover,
.domain-pills a:hover {
  transform: translateY(-3px);
  border-color: var(--coral);
  box-shadow: var(--shadow-soft);
}

.policy-card span,
.policy-card strong,
.policy-card small {
  display: block;
}

.policy-card span {
  font-size: 2rem;
  margin-bottom: 10px;
}

.policy-card small {
  margin-top: 6px;
  color: var(--muted);
}

.domains-section {
  display: grid;
  grid-template-columns: 1fr .72fr;
  gap: 24px;
  align-items: center;
}

.domain-pills a {
  text-align: center;
  font-weight: 950;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding: 36px 0 52px;
  color: var(--muted);
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  font-weight: 750;
}

.beian-line {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 16px;
  margin: 12px 0 0;
  color: var(--muted);
  font-size: .86rem;
  line-height: 1.7;
}

.beian-line a {
  color: var(--muted);
}

.beian-line a:hover {
  color: var(--coral);
}

.legal-page {
  max-width: 980px;
  margin: 0 auto;
}

.legal-hero {
  margin-top: 0;
  margin-bottom: 22px;
  background:
    linear-gradient(135deg, color-mix(in srgb, var(--coral), transparent 84%), transparent 62%),
    var(--panel);
}

.legal-hero h1 {
  font-size: clamp(2.6rem, 6vw, 5rem);
}

.legal-index {
  position: sticky;
  top: 96px;
  z-index: 2;
  display: flex;
  gap: 10px;
  overflow-x: auto;
  margin: 0 0 22px;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: color-mix(in srgb, var(--panel), transparent 3%);
  backdrop-filter: blur(18px);
  box-shadow: 0 12px 32px rgba(64, 33, 28, 0.08);
}

.legal-index a {
  flex: 0 0 auto;
  padding: 9px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--panel-solid);
  color: var(--muted);
  font-size: .84rem;
  font-weight: 900;
}

.legal-index a:hover {
  color: var(--coral);
  border-color: color-mix(in srgb, var(--coral), var(--line) 30%);
}

.legal-card {
  display: grid;
  gap: 24px;
  margin-top: 0;
}

.legal-card section {
  padding-bottom: 22px;
  border-bottom: 1px solid var(--line);
}

.legal-card section:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.legal-card h2 {
  font-size: clamp(1.24rem, 2vw, 1.65rem);
  line-height: 1.28;
}

.legal-card p {
  font-size: 1rem;
}

[data-reveal] {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity .7s ease, transform .7s ease;
}

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

@keyframes floaty {
  0%, 100% { translate: 0 0; }
  50% { translate: 0 -14px; }
}

@keyframes bob {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  50% { transform: translateY(-10px) rotate(5deg); }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation: none !important;
    scroll-behavior: auto !important;
    transition: none !important;
  }

  [data-reveal] {
    opacity: 1;
    transform: none;
  }
}

@media (max-width: 880px) {
  .site-shell {
    width: min(100% - 24px, 680px);
  }

  .topbar {
    align-items: flex-start;
    margin-bottom: 42px;
  }

  .nav-links {
    display: none;
  }

  .section-grid,
  .domains-section {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
  }

  .hero-visual {
    min-height: 520px;
  }

  .trust-strip,
  .feature-grid,
  .membership-grid,
  .policy-links,
  .domain-pills {
    grid-template-columns: 1fr;
  }

  .screenshot-row {
    overflow-x: auto;
    grid-template-columns: repeat(3, 230px);
    padding-bottom: 14px;
  }

  .site-footer {
    flex-direction: column;
  }
}

@media (max-width: 520px) {
  h1 {
    font-size: 3.4rem;
  }

  .topbar {
    border-radius: 20px;
  }

  .brand small {
    display: none;
  }

  .hero-actions {
    display: grid;
  }

  .hero-visual {
    min-height: 470px;
  }

  .mini-card {
    right: 0;
    bottom: 28px;
  }

  .recommend-card {
    grid-template-columns: 46px 1fr;
  }

  .recommend-card em {
    grid-column: 2;
    justify-self: start;
  }
}

.policy-body {
  background: #ffffff;
  color: #1f2329;
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
}

.policy-document {
  width: min(1030px, calc(100% - 32px));
  margin: 0 auto;
  padding: 34px 0 70px;
}

.policy-document h1 {
  margin: 0 0 18px;
  color: #1f2329;
  font-size: 24px;
  line-height: 1.45;
  font-weight: 700;
  text-align: left;
}

.policy-document h5 {
  margin: 34px 0 18px;
  color: #1f2329;
  font-size: 18px;
  line-height: 1.7;
  font-weight: 700;
}

.policy-document h6 {
  margin: 0 0 28px;
  color: #30343b;
  font-size: 14px;
  line-height: 1.8;
  font-weight: 600;
}

.policy-document p {
  margin: 0 0 18px;
  color: #20242b;
  font-size: 16px;
  line-height: 1.9;
  text-align: left;
}

.policy-document strong {
  color: #15181d;
  font-weight: 800;
}

.policy-document a {
  color: #1677ff;
  text-decoration: none;
}

.policy-document a:hover {
  text-decoration: underline;
}

@media (max-width: 640px) {
  .policy-document {
    width: min(100% - 28px, 1030px);
    padding-top: 24px;
  }

  .policy-document h1 {
    font-size: 22px;
  }

  .policy-document h5 {
    font-size: 17px;
  }

  .policy-document p {
    font-size: 15px;
  }
}