:root {
  --pink: #e83f83;
  --pink-dark: #bd2f68;
  --pink-soft: #fff0f7;
  --ink: #4b2740;
  --muted: #76586a;
  --line: #f1cfdf;
  --mint: #61cbb6;
  --yellow: #ffc857;
  --purple: #8776dd;
  --paper: #fffafd;
  --shadow: 0 24px 60px rgba(130, 54, 88, .13);
}

* { box-sizing: border-box; }
html { overflow-x: hidden; scroll-behavior: smooth; }
body {
  margin: 0;
  overflow-x: hidden;
  color: var(--ink);
  background:
    radial-gradient(circle at 8% 5%, rgba(255, 197, 223, .52), transparent 25rem),
    radial-gradient(circle at 92% 22%, rgba(255, 218, 122, .22), transparent 22rem),
    linear-gradient(180deg, #fff7fb 0%, #fff 48%, #fff9f2 100%);
  font-family: "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button, a { -webkit-tap-highlight-color: transparent; }
.section-shell { width: min(1180px, calc(100% - 40px)); margin: 0 auto; }

.site-header {
  position: sticky;
  z-index: 50;
  top: 0;
  padding: 14px 20px 0;
}

.nav-shell {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: min(1180px, 100%);
  min-height: 66px;
  margin: 0 auto;
  padding: 9px 12px 9px 14px;
  border: 1px solid rgba(255, 255, 255, .9);
  border-radius: 22px;
  background: rgba(255, 255, 255, .86);
  box-shadow: 0 12px 35px rgba(94, 42, 67, .09);
  backdrop-filter: blur(18px);
}

.brand { display: inline-flex; align-items: center; gap: 12px; min-width: 0; }
.brand > span:last-child { display: flex; min-width: 0; flex-direction: column; }
.brand strong { overflow: hidden; font-size: 15px; white-space: nowrap; text-overflow: ellipsis; }
.brand small { margin-top: 1px; color: #9b7187; font-size: 9px; font-weight: 800; letter-spacing: .15em; }
.brand-mark { display: grid; width: 42px; height: 42px; flex: 0 0 auto; grid-template-columns: 1fr 1fr; gap: 3px; padding: 8px; border-radius: 14px; background: #fff0f7; box-shadow: inset 0 0 0 1px #f5ccdf; }
.brand-mark i { border-radius: 4px; background: var(--pink); }
.brand-mark i:nth-child(2) { background: var(--yellow); }
.brand-mark i:nth-child(3) { background: var(--mint); }
.brand-mark i:nth-child(4) { background: var(--purple); }
.nav-actions { display: flex; align-items: center; gap: 8px; }
.nav-actions a { display: inline-flex; min-height: 42px; align-items: center; justify-content: center; padding: 0 15px; border-radius: 13px; color: #6f4c61; font-size: 13px; font-weight: 800; transition: color .2s ease, background .2s ease; }
.nav-actions a:hover { background: #fff0f7; color: var(--pink-dark); }
.nav-actions .nav-primary { color: #fff; background: var(--pink); box-shadow: 0 8px 20px rgba(232, 63, 131, .2); }
.nav-actions .nav-primary:hover { color: #fff; background: var(--pink-dark); }

.hero { display: grid; min-height: 720px; grid-template-columns: minmax(0, 1.2fr) minmax(340px, .8fr); align-items: center; gap: clamp(40px, 5vw, 70px); padding-top: 70px; padding-bottom: 90px; }
.eyebrow, .section-kicker { color: var(--pink-dark); font-size: 13px; font-weight: 900; letter-spacing: .14em; }
.eyebrow { display: inline-flex; align-items: center; gap: 9px; padding: 8px 13px; border: 1px solid #f2c7da; border-radius: 999px; background: rgba(255,255,255,.78); box-shadow: 0 8px 24px rgba(111, 49, 78, .06); }
.eyebrow span { width: 10px; height: 10px; border-radius: 4px; background: var(--mint); box-shadow: 14px 0 0 var(--pink), 28px 0 0 var(--yellow); margin-right: 28px; }
.hero h1 { max-width: 700px; margin: 24px 0 0; color: #4a263e; font-size: clamp(43px, 5vw, 64px); line-height: 1.12; letter-spacing: -.045em; }
.hero h1 em { color: var(--pink); font-style: normal; }
.hero-lead { max-width: 620px; margin: 24px 0 0; color: var(--muted); font-size: clamp(17px, 1.6vw, 21px); line-height: 1.85; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 13px; margin-top: 32px; }
.button { display: inline-flex; min-height: 52px; align-items: center; justify-content: center; gap: 9px; padding: 0 21px; border: 1px solid transparent; border-radius: 16px; font-size: 15px; font-weight: 900; transition: color .2s ease, background .2s ease, border-color .2s ease, box-shadow .2s ease; }
.button svg { width: 21px; height: 21px; fill: currentColor; }
.button-primary { color: white; background: linear-gradient(135deg, #f15794, #df3478); box-shadow: 0 12px 30px rgba(222, 52, 120, .26); }
.button-primary:hover { background: linear-gradient(135deg, #e33e80, #c82969); box-shadow: 0 14px 34px rgba(200, 41, 105, .3); }
.button-secondary { border-color: #efc9db; color: #a93168; background: rgba(255,255,255,.8); }
.button-secondary:hover { border-color: #e9aaca; background: #fff0f7; }
.trust-row { display: flex; flex-wrap: wrap; gap: 14px 22px; margin-top: 27px; color: #76596a; font-size: 13px; font-weight: 700; }
.trust-row span { display: inline-flex; align-items: center; gap: 8px; }
.trust-dot { width: 9px; height: 9px; border-radius: 50%; }
.trust-dot.mint { background: var(--mint); box-shadow: 0 0 0 4px rgba(97,203,182,.14); }
.trust-dot.pink { background: var(--pink); box-shadow: 0 0 0 4px rgba(232,63,131,.12); }
.trust-dot.yellow { background: var(--yellow); box-shadow: 0 0 0 4px rgba(255,200,87,.16); }

.hero-visual { position: relative; display: flex; min-height: 610px; align-items: center; justify-content: center; }
.hero-visual::before { content: ""; position: absolute; width: 470px; height: 470px; border-radius: 42% 58% 58% 42% / 48% 40% 60% 52%; background: linear-gradient(145deg, #ffd6e7, #fff0cf); transform: rotate(-7deg); box-shadow: inset 0 0 0 2px rgba(255,255,255,.6); }
.phone { position: relative; overflow: hidden; width: min(315px, 76vw); border: 9px solid #fff; border-radius: 42px; background: #fff; box-shadow: 0 28px 70px rgba(84, 37, 59, .2), 0 0 0 2px #efcbdc; }
.phone img { width: 100%; height: auto; }
.phone-hero { z-index: 2; width: min(330px, 78vw); max-height: 610px; transform: rotate(2.4deg); }
.phone-hero img { margin-top: -1px; }
.phone-speaker { position: absolute; z-index: 3; top: 8px; left: 50%; width: 62px; height: 5px; border-radius: 99px; background: rgba(70, 39, 55, .24); transform: translateX(-50%); }
.floating-note { position: absolute; z-index: 3; display: flex; align-items: center; gap: 9px; padding: 12px 15px; border: 1px solid #f0d2e0; border-radius: 15px; color: #6d4259; background: rgba(255,255,255,.94); box-shadow: 0 12px 30px rgba(99,44,71,.14); font-size: 13px; font-weight: 900; }
.floating-note i { width: 12px; height: 12px; border-radius: 4px; background: var(--pink); }
.note-top { top: 90px; right: 0; }
.note-top i { background: var(--yellow); }
.note-bottom { bottom: 70px; left: -12px; }

.quick-values { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; padding-bottom: 120px; }
.quick-values article { position: relative; min-height: 190px; padding: 30px; overflow: hidden; border: 1px solid var(--line); border-radius: 26px; background: rgba(255,255,255,.85); box-shadow: 0 14px 38px rgba(104,45,73,.08); }
.value-index { position: absolute; right: 22px; top: 12px; color: rgba(232,63,131,.1); font-size: 70px; line-height: 1; font-weight: 1000; }
.quick-values h2 { position: relative; margin: 24px 0 0; font-size: 21px; }
.quick-values p { position: relative; margin: 10px 0 0; color: var(--muted); font-size: 14px; line-height: 1.75; }

.section-heading { max-width: 780px; margin: 0 auto 64px; text-align: center; }
.section-heading h2 { margin: 13px 0 0; color: #4b2740; font-size: clamp(32px, 4vw, 48px); line-height: 1.24; letter-spacing: -.03em; }
.section-heading p { margin: 16px auto 0; color: var(--muted); font-size: 17px; line-height: 1.8; }
.section-heading.compact { margin-bottom: 42px; }
.story { padding-bottom: 130px; }
.story-row { display: grid; grid-template-columns: minmax(0, .9fr) minmax(360px, 1.1fr); align-items: center; gap: clamp(48px, 8vw, 110px); margin-top: 80px; }
.story-row.reverse .story-copy { order: 2; }
.story-row.reverse .phone-stage { order: 1; }
.story-copy { max-width: 510px; }
.step-number { display: inline-flex; width: 48px; height: 48px; align-items: center; justify-content: center; border-radius: 15px; color: white; background: var(--pink); box-shadow: 0 6px 0 #bd2f68; font-size: 15px; font-weight: 1000; }
.step-number.yellow { color: #6b4610; background: var(--yellow); box-shadow: 0 6px 0 #d39a27; }
.step-number.mint { background: var(--mint); box-shadow: 0 6px 0 #3f9d8b; }
.story-copy h3 { margin: 25px 0 0; font-size: clamp(28px, 3.2vw, 41px); line-height: 1.3; letter-spacing: -.025em; }
.story-copy > p { margin: 18px 0 0; color: var(--muted); font-size: 16px; line-height: 1.85; }
.check-list { display: grid; gap: 11px; margin: 24px 0 0; padding: 0; list-style: none; }
.check-list li { position: relative; padding-left: 29px; color: #624154; font-size: 14px; font-weight: 800; }
.check-list li::before { content: ""; position: absolute; left: 0; top: 4px; width: 17px; height: 17px; border-radius: 6px; background: #fff0f7; box-shadow: inset 0 0 0 2px #f09abe; }
.check-list li::after { content: ""; position: absolute; left: 5px; top: 8px; width: 7px; height: 4px; border-left: 2px solid var(--pink); border-bottom: 2px solid var(--pink); transform: rotate(-45deg); }
.phone-stage { position: relative; display: flex; min-height: 650px; align-items: flex-start; justify-content: center; overflow: hidden; padding: 45px 30px 0; border-radius: 38px; }
.phone-stage::before, .phone-stage::after { content: ""; position: absolute; border-radius: 50%; background: rgba(255,255,255,.55); }
.phone-stage::before { width: 240px; height: 240px; top: -70px; right: -30px; }
.phone-stage::after { width: 120px; height: 120px; bottom: 60px; left: 20px; }
.phone-stage .phone { z-index: 2; width: min(310px, 76vw); border-width: 7px; border-radius: 36px; box-shadow: 0 25px 60px rgba(80,37,58,.19), 0 0 0 2px rgba(120,53,85,.12); }
.peach { background: linear-gradient(145deg, #ffdcea, #fff6dd); }
.butter { background: linear-gradient(145deg, #fff1c7, #ffe5f0); }
.mint-stage { background: linear-gradient(145deg, #dff8f1, #ffe4ef); }

.features { padding-bottom: 130px; }
.feature-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.feature-grid article { min-height: 240px; padding: 27px; border: 1px solid var(--line); border-radius: 26px; background: rgba(255,255,255,.9); box-shadow: 0 15px 35px rgba(100,43,70,.07); }
.feature-icon { display: inline-flex; width: 48px; height: 48px; align-items: center; justify-content: center; border-radius: 15px; }
.feature-icon svg { width: 24px; height: 24px; fill: currentColor; }
.pink-icon { color: #cf3978; background: #ffedf5; }
.mint-icon { color: #328d7c; background: #e3f8f3; }
.yellow-icon { color: #a66e00; background: #fff3ce; }
.purple-icon { color: #6958c2; background: #efecff; }
.feature-grid h3 { margin: 23px 0 0; font-size: 19px; }
.feature-grid p { margin: 10px 0 0; color: var(--muted); font-size: 14px; line-height: 1.75; }

.scan-section { padding-bottom: 130px; scroll-margin-top: 100px; }
.scan-card { position: relative; display: grid; grid-template-columns: minmax(0, 1fr) 260px; align-items: center; gap: 55px; overflow: hidden; padding: clamp(38px, 6vw, 72px); border-radius: 40px; color: white; background: linear-gradient(135deg, #d93277, #ee5596 55%, #f4956d); box-shadow: 0 30px 75px rgba(190,46,105,.25); }
.scan-card::before { content: ""; position: absolute; width: 420px; height: 420px; right: -180px; top: -190px; border: 60px solid rgba(255,255,255,.09); border-radius: 50%; }
.scan-copy, .qr-card { position: relative; z-index: 2; }
.section-kicker.light { color: #fff5cf; }
.scan-copy h2 { margin: 15px 0 0; font-size: clamp(34px, 4.4vw, 54px); line-height: 1.2; letter-spacing: -.035em; }
.scan-copy p { max-width: 620px; margin: 19px 0 0; color: rgba(255,255,255,.86); font-size: 16px; line-height: 1.8; }
.text-link { display: inline-block; margin-top: 24px; padding-bottom: 3px; border-bottom: 1px solid rgba(255,255,255,.55); font-size: 14px; font-weight: 900; }
.qr-card { padding: 14px 14px 16px; border-radius: 26px; color: var(--ink); background: #fff; box-shadow: 0 20px 48px rgba(105,27,61,.25); text-align: center; }
.qr-card img { width: 100%; height: auto; border-radius: 18px; }
.qr-card strong, .qr-card span { display: block; }
.qr-card strong { margin-top: 11px; font-size: 17px; }
.qr-card span { margin-top: 2px; color: #8b6a7b; font-size: 12px; }

.faq { padding-bottom: 130px; }
.faq-list { max-width: 860px; margin: 0 auto; border-top: 1px solid var(--line); }
.faq details { border-bottom: 1px solid var(--line); }
.faq summary { position: relative; padding: 23px 50px 23px 4px; cursor: pointer; font-size: 17px; font-weight: 900; list-style: none; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; position: absolute; right: 7px; top: 50%; display: flex; width: 30px; height: 30px; align-items: center; justify-content: center; border-radius: 10px; color: var(--pink); background: #fff0f7; font-size: 22px; transform: translateY(-50%); }
.faq details[open] summary::after { content: "−"; }
.faq details p { margin: -7px 0 22px; padding: 0 60px 0 4px; color: var(--muted); font-size: 14px; line-height: 1.8; }

footer { border-top: 1px solid #f0d7e2; background: rgba(255,255,255,.72); }
.footer-shell { display: flex; width: min(1180px, calc(100% - 40px)); min-height: 130px; align-items: center; justify-content: space-between; gap: 30px; margin: 0 auto; }
.footer-shell > div { display: flex; flex-direction: column; }
.footer-shell strong { font-size: 16px; }
.footer-shell span { margin-top: 4px; color: #8d6b7d; font-size: 12px; }
.footer-shell nav { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 18px; }
.footer-shell nav a { color: #76576a; font-size: 13px; font-weight: 700; }
.footer-shell nav a:hover { color: var(--pink-dark); }

@media (max-width: 980px) {
  .hero { grid-template-columns: 1fr 390px; gap: 35px; }
  .hero h1 { font-size: 50px; }
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 780px) {
  .site-header { padding: 10px 12px 0; }
  .nav-shell { min-height: 58px; border-radius: 18px; }
  .brand-mark { width: 38px; height: 38px; }
  .brand small, .nav-actions > a:first-child { display: none; }
  .nav-actions a { min-height: 40px; padding: 0 13px; }
  .section-shell { width: min(100% - 28px, 620px); }
  .hero { min-height: 0; grid-template-columns: 1fr; padding-top: 58px; padding-bottom: 95px; text-align: center; }
  .hero h1 { margin-right: auto; margin-left: auto; font-size: clamp(40px, 12vw, 58px); }
  .hero-lead { margin-right: auto; margin-left: auto; }
  .hero-actions, .trust-row { justify-content: center; }
  .hero-visual { min-height: 610px; margin-top: 10px; }
  .hero-visual::before { width: min(440px, 94vw); height: min(440px, 94vw); }
  .note-top { right: 2%; }
  .note-bottom { left: 2%; }
  .quick-values { grid-template-columns: 1fr; padding-bottom: 100px; }
  .quick-values article { min-height: 155px; }
  .section-heading { margin-bottom: 45px; }
  .story { padding-bottom: 105px; }
  .story-row, .story-row.reverse { grid-template-columns: 1fr; gap: 38px; margin-top: 72px; }
  .story-row .story-copy, .story-row.reverse .story-copy { order: 1; max-width: none; }
  .story-row .phone-stage, .story-row.reverse .phone-stage { order: 2; }
  .phone-stage { min-height: 610px; }
  .feature-grid { grid-template-columns: 1fr 1fr; }
  .scan-card { grid-template-columns: 1fr; text-align: center; }
  .scan-copy p { margin-right: auto; margin-left: auto; }
  .qr-card { width: min(260px, 100%); margin: 0 auto; }
}

@media (max-width: 520px) {
  .section-shell { width: calc(100% - 24px); }
  .brand { gap: 8px; }
  .brand strong { max-width: 160px; font-size: 13px; }
  .nav-actions .nav-primary { font-size: 12px; }
  .hero { padding-top: 44px; }
  .hero h1 { font-size: 39px; }
  .hero-lead { font-size: 16px; }
  .hero-actions { flex-direction: column; }
  .button { width: 100%; }
  .trust-row { display: grid; justify-items: start; width: max-content; max-width: 100%; margin-right: auto; margin-left: auto; }
  .hero-visual { min-height: 540px; }
  .phone-hero { max-height: 540px; }
  .floating-note { padding: 10px 12px; font-size: 12px; }
  .note-top { top: 60px; }
  .note-bottom { bottom: 35px; }
  .quick-values article { padding: 25px; }
  .section-heading h2 { font-size: 31px; }
  .section-heading p { font-size: 15px; }
  .story-row { margin-top: 60px; }
  .story-copy h3 { font-size: 29px; }
  .phone-stage { min-height: 570px; padding: 35px 18px 0; border-radius: 29px; }
  .phone-stage .phone { width: min(285px, 82vw); }
  .feature-grid { grid-template-columns: 1fr; }
  .feature-grid article { min-height: 205px; }
  .scan-section, .features, .faq { padding-bottom: 95px; }
  .scan-card { gap: 34px; padding: 34px 20px; border-radius: 29px; }
  .scan-copy h2 { font-size: 34px; }
  .faq summary { font-size: 15px; }
  .faq details p { padding-right: 10px; }
  .footer-shell { flex-direction: column; align-items: flex-start; justify-content: center; padding: 30px 0; }
  .footer-shell nav { justify-content: flex-start; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: .01ms !important; }
}