:root {
  --ink: #241c2e;
  --paper: #fffafb;
  --pink: #e85d8d;
  --pink-dark: #c83d70;
  --pink-soft: #fde8ef;
  --mint: #56c6b1;
  --mint-soft: #e2f7f2;
  --yellow: #f4c95d;
  --yellow-soft: #fff4ce;
  --muted: #6f6875;
  --line: #ded7e2;
  --white: #ffffff;
  --shadow: 6px 6px 0 var(--ink);
  --container: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
  line-height: 1.75;
}

body::before {
  position: fixed;
  inset: 0;
  z-index: -1;
  background-image: radial-gradient(circle, rgba(36, 28, 46, 0.09) 1px, transparent 1.5px);
  background-size: 22px 22px;
  content: "";
  pointer-events: none;
}

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

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

button,
a {
  -webkit-tap-highlight-color: transparent;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 3px solid var(--ink);
  background: rgba(255, 250, 251, 0.96);
  backdrop-filter: blur(12px);
}

.nav-wrap {
  min-height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex: 0 0 auto;
  font-size: 21px;
  font-weight: 900;
}

.brand img {
  width: 44px;
  height: 44px;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 30px;
  font-weight: 700;
}

.site-nav a:not(.button) {
  position: relative;
}

.site-nav a:not(.button)::after {
  position: absolute;
  right: 0;
  bottom: -7px;
  left: 0;
  height: 3px;
  background: var(--pink);
  content: "";
  transform: scaleX(0);
  transition: transform 0.2s ease;
}

.site-nav a[aria-current="page"]::after,
.site-nav a:not(.button):hover::after {
  transform: scaleX(1);
}

.button {
  display: inline-flex;
  min-height: 46px;
  align-items: center;
  justify-content: center;
  border: 2px solid var(--ink);
  border-radius: 5px;
  padding: 10px 22px;
  background: var(--pink);
  box-shadow: 4px 4px 0 var(--ink);
  color: var(--white);
  font-weight: 900;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.button:hover,
.button:focus-visible {
  box-shadow: 2px 2px 0 var(--ink);
  transform: translate(2px, 2px);
}

.button.secondary {
  background: var(--mint);
  color: var(--ink);
}

.menu-toggle {
  display: none;
  width: 46px;
  height: 46px;
  border: 2px solid var(--ink);
  border-radius: 5px;
  background: var(--white);
  font-size: 24px;
  cursor: pointer;
}

.hero {
  overflow: hidden;
  border-bottom: 3px solid var(--ink);
  background: linear-gradient(115deg, var(--pink-soft) 0 54%, var(--yellow-soft) 54% 100%);
}

.hero-grid {
  min-height: 650px;
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  align-items: center;
  gap: 64px;
  padding-block: 62px;
}

.eyebrow,
.kicker {
  display: inline-block;
  margin-bottom: 18px;
  border: 2px solid var(--ink);
  padding: 5px 12px;
  background: var(--yellow);
  box-shadow: 3px 3px 0 var(--ink);
  font-size: 14px;
  font-weight: 900;
}

h1,
h2,
h3 {
  margin-top: 0;
  line-height: 1.2;
  letter-spacing: 0;
}

h1 {
  max-width: 640px;
  margin-bottom: 24px;
  font-size: clamp(44px, 5vw, 64px);
}

h2 {
  margin-bottom: 30px;
  font-size: clamp(30px, 4vw, 48px);
}

h3 {
  font-size: 21px;
}

.lead {
  max-width: 650px;
  margin: 0 0 28px;
  color: #4f4756;
  font-size: 18px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 30px;
}

.trust-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 20px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 14px;
  font-weight: 700;
}

.trust-row li::before {
  margin-right: 7px;
  color: var(--pink-dark);
  content: "✓";
  font-weight: 900;
}

.phone-stage {
  position: relative;
  display: flex;
  justify-content: center;
}

.phone-stage::before,
.phone-stage::after {
  position: absolute;
  border: 3px solid var(--ink);
  content: "";
}

.phone-stage::before {
  width: 180px;
  height: 180px;
  top: -22px;
  right: 0;
  background: var(--mint);
  transform: rotate(8deg);
}

.phone-stage::after {
  width: 130px;
  height: 70px;
  bottom: 18px;
  left: 6px;
  background: var(--yellow);
  transform: rotate(-8deg);
}

.phone-shell {
  position: relative;
  z-index: 2;
  width: min(330px, 86vw);
  border: 10px solid var(--ink);
  border-radius: 34px;
  padding: 6px;
  background: var(--white);
  box-shadow: 12px 12px 0 rgba(36, 28, 46, 0.24);
}

.phone-shell .app-shot {
  border-radius: 20px;
}

.app-shot {
  width: 100%;
  max-width: 400px;
  height: auto;
}

.fact-strip {
  border-bottom: 3px solid var(--ink);
  background: var(--ink);
  color: var(--white);
}

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

.fact {
  min-height: 110px;
  display: grid;
  place-content: center;
  border-right: 1px solid #5c5365;
  padding: 20px;
  text-align: center;
}

.fact:last-child {
  border-right: 0;
}

.fact strong {
  color: var(--yellow);
  font-size: 27px;
}

.fact span {
  color: #dcd5df;
  font-size: 14px;
}

.section {
  padding-block: 90px;
}

.section-head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 30px;
  margin-bottom: 34px;
}

.section-head h2 {
  margin-bottom: 0;
}

.section-note {
  max-width: 500px;
  color: var(--muted);
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}

.feature-card,
.review-card,
.guide-step,
.faq-item,
.info-panel {
  border: 2px solid var(--ink);
  border-radius: 6px;
  background: var(--white);
  box-shadow: var(--shadow);
}

.feature-card {
  min-height: 275px;
  padding: 26px;
}

.feature-card:nth-child(2) {
  background: var(--mint-soft);
}

.feature-card:nth-child(3) {
  background: var(--yellow-soft);
}

.feature-card:nth-child(4) {
  background: var(--pink-soft);
}

.number-tag {
  display: grid;
  width: 44px;
  height: 44px;
  place-content: center;
  margin-bottom: 26px;
  border: 2px solid var(--ink);
  border-radius: 50%;
  background: var(--pink);
  color: var(--white);
  font-weight: 900;
}

.feature-card p,
.review-card p {
  margin: 0;
  color: var(--muted);
}

.showcase {
  border-block: 3px solid var(--ink);
  background: var(--mint-soft);
}

.showcase-grid {
  display: grid;
  grid-template-columns: 0.75fr 1.25fr;
  align-items: center;
  gap: 70px;
}

.screenshot-frame {
  width: fit-content;
  border: 3px solid var(--ink);
  padding: 12px;
  background: var(--white);
  box-shadow: 10px 10px 0 var(--pink);
}

.showcase-points {
  display: grid;
  gap: 18px;
}

.showcase-point {
  display: grid;
  grid-template-columns: 70px 1fr;
  gap: 18px;
  align-items: start;
  border-bottom: 2px solid rgba(36, 28, 46, 0.25);
  padding-bottom: 18px;
}

.showcase-point strong {
  color: var(--pink-dark);
  font-size: 30px;
}

.showcase-point p {
  margin: 4px 0 0;
}

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

.path-card {
  position: relative;
  overflow: hidden;
  min-height: 230px;
  border-top: 6px solid var(--pink);
  padding: 28px;
  background: var(--white);
  counter-increment: path;
}

.path-card::after {
  position: absolute;
  right: 14px;
  bottom: -30px;
  color: rgba(36, 28, 46, 0.08);
  content: "0" counter(path);
  font-size: 110px;
  font-weight: 900;
}

.path-card a {
  position: relative;
  z-index: 1;
  color: var(--pink-dark);
  font-weight: 900;
}

.reviews {
  background: var(--pink-soft);
}

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

.review-card {
  padding: 26px;
}

.review-card blockquote {
  margin: 0 0 20px;
  font-size: 17px;
  font-weight: 700;
}

.review-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: var(--muted);
  font-size: 14px;
}

.stars {
  color: #af7810;
}

.faq-list {
  display: grid;
  gap: 14px;
}

.faq-item {
  overflow: hidden;
  box-shadow: 4px 4px 0 var(--ink);
}

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  border: 0;
  padding: 20px 22px;
  background: var(--white);
  color: var(--ink);
  font: inherit;
  font-weight: 900;
  text-align: left;
  cursor: pointer;
}

.faq-question::after {
  flex: 0 0 auto;
  content: "+";
  font-size: 24px;
}

.faq-question[aria-expanded="true"]::after {
  content: "−";
}

.faq-answer {
  padding: 0 22px 20px;
  color: var(--muted);
}

.faq-answer p {
  margin: 0;
}

.cta-band {
  border-block: 3px solid var(--ink);
  background: var(--yellow);
}

.cta-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
  padding-block: 46px;
}

.cta-inner h2 {
  margin: 0 0 8px;
  font-size: 34px;
}

.cta-inner p {
  margin: 0;
}

.cta-copy {
  margin: 0;
}

.site-footer {
  padding-block: 48px 28px;
  background: var(--ink);
  color: #eee8f0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.3fr 0.7fr 1fr;
  gap: 50px;
}

.footer-brand {
  margin-bottom: 14px;
  color: var(--white);
}

.footer-links {
  display: grid;
  gap: 8px;
}

.disclaimer {
  margin: 0;
  color: #bdb5c2;
  font-size: 13px;
}

.copyright {
  margin: 34px 0 0;
  border-top: 1px solid #544b59;
  padding-top: 22px;
  color: #a69daa;
  font-size: 13px;
  text-align: center;
}

.subhero {
  border-bottom: 3px solid var(--ink);
  padding-block: 78px;
  background: var(--pink-soft);
}

.subhero.guide-hero {
  background: linear-gradient(90deg, var(--mint-soft) 0 72%, var(--yellow) 72%);
}

.subhero.faq-hero {
  background: linear-gradient(90deg, var(--yellow-soft) 0 68%, var(--pink-soft) 68%);
}

.subhero h1 {
  font-size: clamp(40px, 6vw, 68px);
}

.breadcrumb {
  margin-bottom: 20px;
  color: var(--muted);
  font-size: 14px;
}

.content-layout {
  display: grid;
  grid-template-columns: 250px minmax(0, 1fr);
  gap: 58px;
  align-items: start;
}

.side-index {
  position: sticky;
  top: 108px;
  border-left: 5px solid var(--pink);
  padding: 18px 20px;
  background: var(--white);
}

.side-index strong {
  display: block;
  margin-bottom: 12px;
}

.side-index a {
  display: block;
  padding-block: 5px;
  color: var(--muted);
}

.article-flow {
  display: grid;
  gap: 58px;
}

.article-section h2 {
  margin-bottom: 24px;
  font-size: 34px;
}

.article-section > p,
.article-section li {
  color: #554d5b;
}

.guide-step {
  display: grid;
  grid-template-columns: 78px 1fr;
  gap: 22px;
  margin-bottom: 20px;
  padding: 26px;
}

.step-number {
  display: grid;
  width: 58px;
  height: 58px;
  place-content: center;
  border: 2px solid var(--ink);
  background: var(--yellow);
  box-shadow: 4px 4px 0 var(--ink);
  font-size: 23px;
  font-weight: 900;
}

.guide-step p {
  margin: 0;
  color: #554d5b;
}

.shot-with-copy {
  display: grid;
  grid-template-columns: minmax(260px, 380px) 1fr;
  gap: 38px;
  align-items: center;
}

.check-list,
.feature-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.check-list li,
.feature-list li {
  position: relative;
  margin-bottom: 14px;
  padding-left: 30px;
}

.check-list li::before,
.feature-list li::before {
  position: absolute;
  left: 0;
  color: var(--pink-dark);
  content: "◆";
}

.notice {
  border: 2px solid var(--ink);
  border-left-width: 10px;
  padding: 22px 24px;
  background: var(--yellow-soft);
}

.notice p {
  margin: 0;
}

.feature-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--white);
}

.feature-table th,
.feature-table td {
  border: 2px solid var(--ink);
  padding: 16px;
  text-align: left;
  vertical-align: top;
}

.feature-table th {
  background: var(--mint);
}

.info-panel {
  padding: 28px;
  background: var(--mint-soft);
}

.related-links {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
}

.related-links a {
  border: 2px solid var(--ink);
  padding: 20px;
  background: var(--white);
  box-shadow: 4px 4px 0 var(--ink);
  font-weight: 900;
}

@media (max-width: 920px) {
  .menu-toggle {
    display: grid;
    place-content: center;
  }

  .site-nav {
    position: absolute;
    top: 76px;
    right: 0;
    left: 0;
    display: none;
    align-items: stretch;
    gap: 0;
    border-bottom: 3px solid var(--ink);
    padding: 16px 20px 24px;
    background: var(--paper);
  }

  .site-nav.is-open {
    display: grid;
  }

  .site-nav a {
    padding: 12px;
  }

  .hero-grid,
  .showcase-grid {
    grid-template-columns: 1fr;
  }

  .hero-grid {
    gap: 46px;
  }

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

  .path-grid,
  .review-grid {
    grid-template-columns: 1fr;
  }

  .content-layout {
    grid-template-columns: 1fr;
  }

  .side-index {
    position: static;
  }

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

  .footer-grid > :first-child {
    grid-column: 1 / -1;
  }
}

@media (max-width: 620px) {
  .container {
    width: min(calc(100% - 28px), var(--container));
  }

  .nav-wrap {
    min-height: 68px;
  }

  .brand {
    font-size: 18px;
  }

  .brand img {
    width: 38px;
    height: 38px;
  }

  .site-nav {
    top: 68px;
  }

  .hero-grid,
  .section {
    padding-block: 62px;
  }

  h1 {
    font-size: 42px;
  }

  .feature-grid,
  .fact-grid,
  .footer-grid,
  .related-links {
    grid-template-columns: 1fr;
  }

  .fact {
    border-right: 0;
    border-bottom: 1px solid #5c5365;
  }

  .section-head,
  .cta-inner {
    align-items: flex-start;
    flex-direction: column;
  }

  .shot-with-copy {
    grid-template-columns: 1fr;
  }

  .guide-step {
    grid-template-columns: 1fr;
  }

  .feature-table,
  .feature-table tbody,
  .feature-table tr,
  .feature-table th,
  .feature-table td {
    display: block;
    width: 100%;
  }

  .feature-table tr {
    margin-bottom: 12px;
  }

  .footer-grid > :first-child {
    grid-column: auto;
  }
}

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

  *,
  *::before,
  *::after {
    transition: none !important;
  }
}