:root {
  --ink: #263d4a;
  --muted: #6f7d84;
  --pink: #ff6fa8;
  --pink-soft: #ffe7ef;
  --orange: #ff9a62;
  --cream: #fff8f1;
  --paper: #fffdfb;
  --teal: #54b8b0;
  --line: #eadfd9;
  --shadow: 0 18px 50px rgba(85, 53, 66, .13);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: "Microsoft YaHei", "PingFang SC", sans-serif;
  line-height: 1.7;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
.container { width: min(1120px, calc(100% - 40px)); margin: 0 auto; }

.site-header {
  position: sticky; top: 0; z-index: 20;
  border-bottom: 1px solid rgba(234,223,217,.8);
  background: rgba(255,253,251,.9);
  backdrop-filter: blur(16px);
}
.nav { min-height: 76px; display: flex; align-items: center; justify-content: space-between; gap: 28px; }
.brand { display: inline-flex; align-items: center; gap: 11px; font-weight: 800; letter-spacing: .02em; }
.brand img { width: 39px; height: 39px; }
.brand span { font-size: 19px; }
.nav-links { display: flex; align-items: center; gap: 24px; color: #5f6e73; font-size: 14px; }
.nav-links a { position: relative; padding: 24px 0; }
.nav-links a:hover, .nav-links a[aria-current="page"] { color: var(--pink); }
.nav-links a[aria-current="page"]::after { content: ""; position: absolute; height: 3px; background: var(--pink); border-radius: 3px; left: 0; right: 0; bottom: 15px; }
.nav-download { display: inline-flex; align-items: center; gap: 8px; padding: 10px 16px; border-radius: 12px; background: var(--ink); color: #fff; font-weight: 700; font-size: 13px; }
.nav-download:hover { background: #182d38; }
.menu-toggle { display: none; border: 0; background: transparent; color: var(--ink); font-size: 24px; }

.hero { overflow: hidden; padding: 82px 0 88px; background: linear-gradient(120deg, #fff8f1 0%, #fff2f7 55%, #f4fbfa 100%); }
.hero-grid { display: grid; grid-template-columns: 1.02fr .98fr; align-items: center; gap: 76px; }
.eyebrow { display: inline-flex; align-items: center; gap: 8px; color: #d85d88; font-size: 13px; font-weight: 800; letter-spacing: .13em; text-transform: uppercase; }
.eyebrow::before { content: ""; width: 26px; height: 2px; background: var(--orange); }
h1, h2, h3 { margin: 0; line-height: 1.2; letter-spacing: -.02em; }
h1 { margin-top: 17px; max-width: 530px; font-size: 58px; }
.hero-copy > p { max-width: 560px; margin: 24px 0 0; color: #5f6e73; font-size: 17px; }
.actions { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; margin-top: 30px; }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 9px; min-height: 48px; padding: 0 21px; border-radius: 13px; border: 1px solid transparent; font-size: 14px; font-weight: 800; transition: transform .2s, box-shadow .2s, background .2s; }
.btn:hover { transform: translateY(-2px); box-shadow: 0 9px 22px rgba(40, 33, 39, .13); }
.btn-primary { color: #fff; background: var(--pink); }
.btn-secondary { color: var(--ink); border-color: #ddcbc7; background: rgba(255,255,255,.65); }
.hero-note { margin-top: 15px; color: #8b8a88; font-size: 12px; }
.hero-art { position: relative; min-height: 430px; }
.hero-photo { position: absolute; right: 0; top: 0; width: 66%; height: 390px; object-fit: cover; border-radius: 25px 25px 25px 95px; box-shadow: var(--shadow); }
.floating-card { position: absolute; left: 0; bottom: 10px; width: 215px; padding: 17px; border: 1px solid rgba(255,255,255,.8); border-radius: 17px; background: rgba(255,255,255,.88); box-shadow: var(--shadow); }
.floating-card strong { display: block; font-size: 25px; }
.floating-card span { color: var(--muted); font-size: 12px; }
.dot-field { position: absolute; right: 8px; bottom: -14px; z-index: -1; width: 170px; height: 110px; background-image: radial-gradient(#ff9a62 1.4px, transparent 1.4px); background-size: 12px 12px; opacity: .55; }

.section { padding: 94px 0; }
.section-tint { background: var(--cream); }
.section-head { display: flex; align-items: end; justify-content: space-between; gap: 24px; margin-bottom: 34px; }
.section-kicker { margin-bottom: 9px; color: var(--pink); font-size: 12px; font-weight: 800; letter-spacing: .14em; text-transform: uppercase; }
.section-head h2 { font-size: 41px; }
.section-head > span { max-width: 340px; color: var(--muted); font-size: 14px; text-align: right; }
.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 17px; }
.feature { min-height: 220px; padding: 25px; border: 1px solid var(--line); border-radius: 17px; background: #fff; }
.feature:nth-child(2) { background: #fff4f6; }
.feature:nth-child(3) { background: #f1fbfa; }
.feature-index { display: inline-flex; width: 32px; height: 32px; align-items: center; justify-content: center; border-radius: 50%; color: #fff; background: var(--ink); font-size: 12px; font-weight: 800; }
.feature h3 { margin-top: 23px; font-size: 21px; }
.feature ul { margin: 14px 0 0; padding-left: 17px; color: var(--muted); font-size: 14px; }
.feature li + li { margin-top: 7px; }

.showcase-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: 45px; align-items: center; }
.showcase-copy h2 { max-width: 460px; font-size: 40px; }
.showcase-copy > p { margin: 20px 0 0; color: var(--muted); }
.tag-row { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 22px; }
.tag { padding: 6px 10px; border-radius: 99px; color: #7e4b60; background: var(--pink-soft); font-size: 12px; }
.phone-stage { display: flex; justify-content: center; gap: 15px; align-items: flex-end; }
.phone { width: 168px; padding: 9px; border-radius: 25px; background: #203640; box-shadow: var(--shadow); }
.phone.phone-main { width: 195px; transform: translateY(-15px); }
.phone-screen { overflow: hidden; min-height: 320px; border-radius: 18px; background: #fffaf8; }
.phone-main .phone-screen { min-height: 380px; }
.screen-top { display: flex; justify-content: space-between; padding: 15px 13px 8px; color: var(--ink); font-size: 11px; font-weight: 800; }
.screen-pill { margin: 0 13px 10px; padding: 8px 11px; border-radius: 9px; background: #ffe6ee; color: #c9537e; font-size: 10px; }
.screen-cover { height: 125px; margin: 0 13px; overflow: hidden; border-radius: 10px; }
.screen-cover img { width: 100%; height: 100%; object-fit: cover; }
.screen-lines { padding: 12px 13px; }
.screen-lines i { display: block; width: 100%; height: 7px; margin-bottom: 7px; border-radius: 8px; background: #f0e7e2; }
.screen-lines i:nth-child(2) { width: 72%; }
.screen-lines i:nth-child(3) { width: 48%; }
.screen-nav { display: flex; justify-content: space-around; margin-top: 14px; padding: 11px 4px 8px; border-top: 1px solid #f0e7e2; color: #8a9494; font-size: 10px; }

.split-cards { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.link-card { display: flex; min-height: 220px; flex-direction: column; justify-content: space-between; padding: 27px; border-radius: 18px; color: #fff; background: var(--ink); }
.link-card:nth-child(2) { color: var(--ink); background: #ffd8c4; }
.link-card h3 { font-size: 28px; }
.link-card p { margin: 13px 0 0; max-width: 360px; color: rgba(255,255,255,.78); font-size: 14px; }
.link-card:nth-child(2) p { color: rgba(38,61,74,.72); }
.text-link { display: inline-flex; align-items: center; gap: 7px; width: fit-content; margin-top: 20px; font-size: 13px; font-weight: 800; }

.quote-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.quote { padding: 24px; border-top: 3px solid var(--pink); background: #fff; box-shadow: 0 8px 28px rgba(70,45,57,.06); }
.quote p { margin: 0; color: #4f6067; font-size: 15px; }
.quote footer { margin-top: 20px; color: #9a878c; font-size: 12px; }

.article { max-width: 820px; margin: 0 auto; }
.article-hero { padding: 72px 0 44px; background: linear-gradient(120deg, #fff8f1, #fff1f7); }
.article-hero h1 { max-width: 760px; font-size: 52px; }
.article-hero p { max-width: 680px; margin: 22px 0 0; color: var(--muted); font-size: 17px; }
.article-body { padding: 60px 0 90px; }
.article-body h2 { margin-top: 42px; font-size: 29px; }
.article-body h3 { margin-top: 28px; font-size: 21px; }
.article-body p { margin: 16px 0 0; color: #58676e; }
.step-list { display: grid; gap: 14px; margin-top: 25px; }
.step { display: grid; grid-template-columns: 43px 1fr; gap: 16px; align-items: start; padding: 20px; border: 1px solid var(--line); background: #fff; }
.step b { display: grid; width: 36px; height: 36px; place-items: center; border-radius: 50%; color: #fff; background: var(--pink); }
.step h3 { margin: 0; font-size: 18px; }
.step p { margin-top: 5px; font-size: 14px; }
.notice { margin-top: 28px; padding: 19px 21px; border-left: 4px solid var(--orange); background: #fff4e9; color: #765646; font-size: 14px; }

.faq-list { margin-top: 30px; border-top: 1px solid var(--line); }
.faq-item { border-bottom: 1px solid var(--line); }
.faq-question { display: flex; width: 100%; justify-content: space-between; gap: 20px; padding: 21px 0; border: 0; background: transparent; color: var(--ink); text-align: left; font: inherit; font-size: 17px; font-weight: 800; cursor: pointer; }
.faq-question span:last-child { color: var(--pink); font-size: 24px; line-height: 1; }
.faq-answer { display: none; padding: 0 42px 21px 0; color: var(--muted); font-size: 14px; }
.faq-item.is-open .faq-answer { display: block; }
.faq-item.is-open .faq-question span:last-child { transform: rotate(45deg); }
.faq-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin-top: 50px; }
.faq-card { padding: 21px; background: var(--cream); }
.faq-card strong { display: block; font-size: 16px; }
.faq-card span { display: block; margin-top: 7px; color: var(--muted); font-size: 13px; }

.site-footer { padding: 40px 0 28px; background: #203640; color: #dce7e7; }
.footer-grid { display: grid; grid-template-columns: 1.3fr 1fr 1fr; gap: 32px; padding-bottom: 35px; }
.footer-brand { color: #fff; }
.footer-brand p { max-width: 330px; margin: 15px 0 0; color: #9fb2b5; font-size: 13px; }
.footer-title { margin-bottom: 10px; color: #fff; font-size: 13px; font-weight: 800; }
.footer-links { display: grid; gap: 6px; color: #9fb2b5; font-size: 13px; }
.footer-links a:hover { color: #fff; }
.disclaimer { padding-top: 20px; border-top: 1px solid rgba(255,255,255,.14); color: #9fb2b5; font-size: 12px; }
.copyright { margin-top: 12px; color: #769095; font-size: 12px; }

@media (max-width: 820px) {
  .container { width: min(100% - 28px, 620px); }
  .nav { min-height: 68px; }
  .menu-toggle { display: block; }
  .nav-links { position: absolute; left: 14px; right: 14px; top: 68px; display: none; padding: 10px 16px 15px; flex-direction: column; align-items: stretch; gap: 0; border: 1px solid var(--line); border-radius: 14px; background: #fffdfb; box-shadow: var(--shadow); }
  .nav-links.is-open { display: flex; }
  .nav-links a { padding: 11px 4px; }
  .nav-links a[aria-current="page"]::after { display: none; }
  .nav-download { display: none; }
  .hero { padding: 56px 0 58px; }
  .hero-grid, .showcase-grid { grid-template-columns: 1fr; gap: 34px; }
  .hero-art { min-height: 330px; }
  .hero-photo { height: 300px; width: 70%; }
  .feature-grid, .quote-grid, .faq-cards { grid-template-columns: 1fr; }
  .section { padding: 66px 0; }
  .section-head { display: block; }
  .section-head > span { display: block; margin-top: 12px; text-align: left; }
  .split-cards { grid-template-columns: 1fr; }
  .phone-stage { gap: 7px; }
  .phone { width: 135px; padding: 7px; border-radius: 19px; }
  .phone.phone-main { width: 156px; }
  .phone-screen { min-height: 265px; border-radius: 14px; }
  .phone-main .phone-screen { min-height: 310px; }
  .screen-cover { height: 100px; margin: 0 9px; }
  .screen-top, .screen-pill, .screen-lines { padding-left: 9px; padding-right: 9px; }
  .screen-pill { margin-left: 9px; margin-right: 9px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-brand { grid-column: 1 / -1; }
}
@media (max-width: 460px) {
  h1 { font-size: 39px; }
  .section-head h2, .showcase-copy h2 { font-size: 31px; }
  .article-hero h1 { font-size: 38px; }
  .hero-art { min-height: 260px; }
  .hero-photo { height: 235px; }
  .floating-card { width: 170px; padding: 13px; }
  .floating-card strong { font-size: 20px; }
  .phone { width: 106px; }
  .phone.phone-main { width: 124px; }
  .phone-screen { min-height: 220px; }
  .phone-main .phone-screen { min-height: 260px; }
  .screen-cover { height: 77px; }
  .footer-grid { grid-template-columns: 1fr; }
}