:root {
  --ink: #242116;
  --muted: #6f6959;
  --paper: #fffdf8;
  --cream: #fff5d8;
  --yellow: #ffbd2e;
  --yellow-dark: #e99a00;
  --green: #198f62;
  --red: #e95745;
  --deep: #22291f;
  --radius-sm: 16px;
  --radius-md: 24px;
  --radius-lg: 36px;
  --shadow: 0 24px 70px rgba(92, 69, 17, .12), 0 3px 12px rgba(92, 69, 17, .07);
}

* { box-sizing: border-box; }
html { overflow-x: clip; scroll-behavior: smooth; }
body {
  margin: 0;
  overflow-x: clip;
  color: var(--ink);
  background:
    radial-gradient(circle at 85% 2%, rgba(255, 194, 58, .18), transparent 26rem),
    var(--paper);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  -webkit-font-smoothing: antialiased;
}
button, a { -webkit-tap-highlight-color: transparent; }
button { font: inherit; }
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }

.section-shell { width: min(1180px, calc(100% - 48px)); margin-inline: auto; }
.section { padding-block: 120px; }

.site-header {
  position: sticky;
  z-index: 50;
  top: 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: min(1180px, calc(100% - 48px));
  min-height: 64px;
  margin: 16px auto 0;
  padding: 8px 10px 8px 18px;
  border-radius: 22px;
  background: rgba(255, 253, 248, .86);
  box-shadow: 0 10px 40px rgba(64, 51, 20, .08), inset 0 0 0 1px rgba(0, 0, 0, .04);
  backdrop-filter: blur(18px);
}
.brand { display: flex; align-items: center; gap: 10px; font-size: 19px; font-weight: 800; letter-spacing: -.02em; }
.brand-mark { width: 44px; height: 44px; padding: 3px; overflow: hidden; border-radius: 14px; background: var(--cream); }
.brand-mark img { width: 100%; height: 100%; object-fit: contain; }
.site-nav { display: flex; align-items: center; gap: 28px; color: var(--muted); font-size: 14px; font-weight: 650; }
.site-nav a { transition-property: color; transition-duration: 160ms; }
.site-nav a:hover { color: var(--ink); }
.nav-cta {
  min-height: 44px;
  padding: 0 20px;
  border: 0;
  border-radius: 14px;
  color: #392800;
  background: var(--yellow);
  box-shadow: inset 0 1px rgba(255, 255, 255, .55), 0 7px 16px rgba(233, 154, 0, .2);
  cursor: pointer;
  transition-property: transform, box-shadow;
  transition-duration: 160ms;
}
.nav-cta:active, .button:active { transform: scale(.96); }
.nav-toggle { display: none; }

.hero { display: grid; grid-template-columns: .93fr 1.07fr; align-items: center; gap: 70px; min-height: 760px; padding-block: 72px 96px; }
.eyebrow { display: flex; align-items: center; gap: 9px; margin-bottom: 20px; color: #7a5b14; font-size: 13px; font-weight: 800; letter-spacing: .14em; text-transform: uppercase; }
.eyebrow span { width: 22px; height: 8px; border-radius: 999px; background: var(--yellow); box-shadow: 10px 0 0 -2px rgba(255, 189, 46, .35); }
h1, h2, h3, p { margin-top: 0; }
h1, h2 { text-wrap: balance; letter-spacing: -.055em; }
h1 { margin-bottom: 24px; font-size: clamp(54px, 6.2vw, 84px); line-height: 1.05; }
h1 em { color: var(--yellow-dark); font-style: normal; }
.hero-lead { max-width: 590px; margin-bottom: 32px; color: var(--muted); font-size: 18px; line-height: 1.85; text-wrap: pretty; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }
.button { display: inline-flex; min-height: 54px; align-items: center; justify-content: center; gap: 18px; padding: 0 24px; border: 0; border-radius: 16px; font-weight: 750; cursor: pointer; transition-property: transform, box-shadow, background-color; transition-duration: 170ms; }
.button-primary { color: #352500; background: var(--yellow); box-shadow: 0 14px 26px rgba(233, 154, 0, .22), inset 0 1px rgba(255, 255, 255, .55); }
.button-primary:hover { box-shadow: 0 18px 34px rgba(233, 154, 0, .28), inset 0 1px rgba(255, 255, 255, .55); }
.button-quiet { background: #fff; box-shadow: inset 0 0 0 1px rgba(36, 33, 22, .1), 0 8px 24px rgba(36, 33, 22, .04); }
.button-dark { color: #fff; background: var(--deep); box-shadow: 0 14px 28px rgba(34, 41, 31, .22); }
.trust-list { display: flex; flex-wrap: wrap; gap: 24px; margin: 30px 0 0; padding: 0; list-style: none; color: var(--muted); font-size: 13px; }
.trust-list span { color: var(--green); font-weight: 900; }

.hero-visual { position: relative; min-height: 650px; }
.orbit { position: absolute; border-radius: 50%; border: 1px dashed rgba(156, 113, 13, .2); }
.orbit-one { inset: 70px 10px 30px 40px; }
.orbit-two { inset: 140px 80px 100px 105px; }
.phone { position: absolute; z-index: 2; top: 0; left: 50%; width: 330px; padding: 10px; border-radius: 48px; background: #26251f; box-shadow: 0 44px 90px rgba(77, 58, 13, .22), 0 8px 24px rgba(38, 37, 31, .2); transform: translateX(-50%) rotate(2deg); }
.phone::before { content: ""; position: absolute; z-index: 5; top: 18px; left: 50%; width: 82px; height: 22px; border-radius: 99px; background: #26251f; transform: translateX(-50%); }
.phone-screen { position: relative; min-height: 620px; overflow: hidden; padding: 18px 20px 84px; border-radius: 39px; background: #f6f7f9; }
.phone-status { display: flex; justify-content: space-between; padding: 2px 5px; font-size: 10px; }
.phone-status span { letter-spacing: 1px; }
.phone-title { padding: 22px 0 16px; text-align: center; font-size: 17px; font-weight: 800; }
.phone-greeting { display: flex; align-items: center; justify-content: space-between; padding: 6px 4px 13px; }
.phone-greeting div { display: flex; flex-direction: column; gap: 4px; }
.phone-greeting small { color: #85878c; font-size: 10px; }
.phone-greeting strong { font-size: 14px; }
.phone-greeting img { width: 56px; height: 56px; object-fit: contain; }
.balance-card { padding: 20px; border-radius: 24px; color: #2d2207; background: linear-gradient(145deg, #fff0be, #f5c34f); box-shadow: inset 0 1px rgba(255, 255, 255, .7), 0 10px 24px rgba(151, 104, 0, .14); }
.balance-card > span { font-size: 11px; opacity: .68; }
.balance-card > strong { display: block; margin: 5px 0 16px; font-size: 30px; font-variant-numeric: tabular-nums; }
.balance-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.balance-row div { display: flex; flex-direction: column; gap: 3px; padding: 10px; border-radius: 14px; background: rgba(255, 255, 255, .38); }
.balance-row small { font-size: 9px; opacity: .65; }
.balance-row b { color: var(--green); font-size: 12px; font-variant-numeric: tabular-nums; }
.balance-row .expense { color: var(--red); }
.recent-head { display: flex; justify-content: space-between; margin: 20px 2px 8px; }
.recent-head strong { font-size: 14px; }
.recent-head span { color: #999ca2; font-size: 10px; }
.bill-row { display: flex; align-items: center; gap: 10px; margin-top: 7px; padding: 11px; border-radius: 17px; background: #fff; box-shadow: 0 5px 14px rgba(39, 41, 45, .04); }
.bill-row img { width: 38px; height: 38px; object-fit: contain; }
.bill-row div { display: flex; flex: 1; flex-direction: column; }
.bill-row b { font-size: 12px; }
.bill-row small { margin-top: 2px; color: #9da0a6; font-size: 9px; }
.bill-row > strong { font-size: 12px; font-variant-numeric: tabular-nums; }
.phone-tabs { position: absolute; right: 0; bottom: 0; left: 0; display: grid; grid-template-columns: repeat(5, 1fr); align-items: end; min-height: 66px; padding: 8px 10px 9px; background: rgba(255, 255, 255, .96); box-shadow: 0 -5px 18px rgba(0, 0, 0, .04); }
.phone-tabs span { display: flex; flex-direction: column; align-items: center; gap: 3px; color: #93979e; font-size: 8px; }
.phone-tabs span img { width: 21px; height: 21px; object-fit: contain; }
.phone-duck { align-self: center; width: 58px; height: 58px; margin: -34px auto 0; padding: 3px; border: 2px solid #fff; border-radius: 50%; background: #ffe7a4; box-shadow: 0 7px 18px rgba(148, 99, 0, .25); }
.phone-duck img { width: 100%; height: 100%; object-fit: contain; }
.float-card { position: absolute; z-index: 3; display: flex; align-items: center; border-radius: 18px; background: rgba(255, 255, 255, .92); box-shadow: var(--shadow), inset 0 0 0 1px rgba(0, 0, 0, .04); backdrop-filter: blur(12px); }
.float-photo { top: 145px; left: 0; gap: 9px; padding: 11px 14px 11px 10px; transform: rotate(-5deg); }
.float-photo img { width: 42px; height: 42px; }
.float-photo span { color: var(--muted); font-size: 11px; }
.float-photo strong { font-size: 14px; font-variant-numeric: tabular-nums; }
.float-insight { right: -5px; bottom: 95px; gap: 10px; padding: 14px 16px; transform: rotate(4deg); }
.float-insight .spark { display: grid; width: 42px; height: 42px; place-items: center; border-radius: 14px; color: #6e4b00; background: var(--yellow); }
.float-insight div { display: flex; flex-direction: column; gap: 2px; }
.float-insight small { color: var(--muted); font-size: 10px; }
.float-insight strong { font-size: 12px; }

.quick-strip { display: grid; grid-template-columns: repeat(4, 1fr); width: min(1100px, calc(100% - 48px)); margin: 0 auto; padding: 30px 0; border-block: 1px solid rgba(36, 33, 22, .08); }
.quick-strip div { display: flex; flex-direction: column; gap: 4px; padding: 0 35px; border-right: 1px solid rgba(36, 33, 22, .08); }
.quick-strip div:last-child { border-right: 0; }
.quick-strip strong { font-size: 22px; font-variant-numeric: tabular-nums; }
.quick-strip span { color: var(--muted); font-size: 12px; }

.section-heading { max-width: 710px; margin-bottom: 54px; }
.section-heading.centered { margin-inline: auto; text-align: center; }
.section-heading.centered .eyebrow { justify-content: center; }
h2 { margin-bottom: 20px; font-size: clamp(40px, 5vw, 64px); line-height: 1.08; }
.section-heading p, .shared-copy > p, .insight-copy > p { color: var(--muted); font-size: 17px; line-height: 1.8; text-wrap: pretty; }
.feature-grid { display: grid; grid-template-columns: 1.2fr .8fr; gap: 20px; }
.feature-card { position: relative; min-height: 310px; overflow: hidden; padding: 34px; border-radius: var(--radius-lg); background: #fff; box-shadow: var(--shadow), inset 0 0 0 1px rgba(0, 0, 0, .04); }
.feature-card-large { grid-row: span 2; min-height: 640px; background: linear-gradient(160deg, #fff 20%, #fff8df); }
.feature-number { position: absolute; top: 30px; right: 32px; color: rgba(36, 33, 22, .16); font-size: 12px; font-weight: 800; letter-spacing: .1em; }
.feature-card h3 { max-width: 470px; margin: 24px 0 12px; font-size: 27px; letter-spacing: -.035em; }
.feature-card p { max-width: 520px; color: var(--muted); line-height: 1.75; text-wrap: pretty; }
.feature-icon-stack { display: flex; padding-top: 20px; }
.feature-icon-stack span { display: grid; width: 82px; height: 82px; place-items: center; border: 5px solid #fff; border-radius: 27px; background: #f5f7fa; box-shadow: 0 12px 24px rgba(30, 28, 20, .1); }
.feature-icon-stack span + span { margin-left: -12px; }
.feature-icon-stack img { width: 58px; height: 58px; object-fit: contain; }
.chat-demo { margin-top: 46px; padding: 22px; border-radius: 28px; background: #fff; box-shadow: 0 20px 50px rgba(98, 70, 10, .11), inset 0 0 0 1px rgba(0, 0, 0, .04); }
.chat-user { width: fit-content; max-width: 85%; margin-left: auto; padding: 12px 16px; border-radius: 18px 18px 5px 18px; color: #3b2b04; background: #ffdf82; font-size: 14px; }
.chat-result { display: flex; align-items: center; gap: 12px; margin-top: 18px; padding: 13px; border-radius: 18px; background: #f7f8fa; }
.chat-result img { width: 44px; height: 44px; }
.chat-result span { display: flex; flex: 1; flex-direction: column; gap: 3px; }
.chat-result b { font-size: 13px; }
.chat-result small { color: #90939a; font-size: 10px; }
.chat-result i { display: grid; width: 26px; height: 26px; place-items: center; border-radius: 50%; color: #fff; background: var(--green); font-size: 12px; font-style: normal; }
.mini-chart { display: flex; align-items: end; gap: 8px; width: 190px; height: 105px; margin-top: 18px; padding: 14px; border-radius: 22px; background: #fff7dc; }
.mini-chart span { flex: 1; min-height: 12px; border-radius: 999px 999px 5px 5px; background: linear-gradient(#ffc94e, #ec9e00); }
.category-cloud { display: flex; align-items: center; padding-top: 16px; }
.category-cloud img { width: 66px; height: 66px; margin-right: -9px; padding: 5px; border: 4px solid #fff; border-radius: 22px; background: #f5f6f8; box-shadow: 0 9px 20px rgba(0, 0, 0, .08); }

.insight-section { overflow: hidden; padding-block: 120px; color: #fff; background: var(--deep); }
.insight-layout { display: grid; grid-template-columns: .85fr 1.15fr; align-items: center; gap: 90px; }
.eyebrow-light { color: #e9cc7e; }
.insight-copy > p { color: rgba(255, 255, 255, .65); }
.insight-points { margin: 34px 0 0; padding: 0; list-style: none; }
.insight-points li { display: flex; align-items: center; gap: 14px; padding: 16px 0; border-bottom: 1px solid rgba(255, 255, 255, .1); font-size: 14px; }
.insight-points span { color: #e8b433; font-size: 11px; font-variant-numeric: tabular-nums; }
.insight-report { position: relative; padding: 34px; border-radius: 40px; color: var(--ink); background: #fff9e9; box-shadow: 0 34px 80px rgba(0, 0, 0, .25); transform: rotate(1.5deg); }
.insight-report::before { content: ""; position: absolute; inset: 10px; pointer-events: none; border-radius: 32px; box-shadow: inset 0 0 0 1px rgba(80, 61, 17, .09); }
.report-top { display: flex; align-items: center; justify-content: space-between; }
.report-top div { display: flex; flex-direction: column; gap: 5px; }
.report-top small { color: #8d7b50; font-size: 11px; letter-spacing: .08em; }
.report-top strong { font-size: 24px; }
.report-top img { width: 76px; height: 76px; object-fit: contain; }
.report-score { margin: 24px 0 18px; padding: 22px; border-radius: 24px; color: #332500; background: #f6c64f; }
.report-score span { display: block; font-size: 11px; opacity: .65; }
.report-score strong { display: inline-block; margin-top: 6px; font-size: 33px; font-variant-numeric: tabular-nums; }
.report-score em { float: right; margin-top: 18px; padding: 5px 8px; border-radius: 999px; color: #176946; background: rgba(255, 255, 255, .5); font-size: 10px; font-style: normal; }
.report-card { display: flex; gap: 12px; margin-top: 11px; padding: 17px; border-radius: 20px; background: #fff; box-shadow: 0 5px 18px rgba(65, 50, 15, .05); }
.report-dot { flex: 0 0 auto; width: 10px; height: 10px; margin-top: 5px; border-radius: 50%; background: var(--green); box-shadow: 0 0 0 5px rgba(25, 143, 98, .1); }
.report-dot-warn { background: var(--red); box-shadow: 0 0 0 5px rgba(233, 87, 69, .1); }
.report-card strong { font-size: 13px; }
.report-card p { margin: 5px 0 0; color: var(--muted); font-size: 11px; line-height: 1.65; }
.report-note { margin-top: 16px; color: #9d906f; text-align: center; font-size: 9px; }

.shared-section { display: grid; grid-template-columns: 1.05fr .95fr; align-items: center; gap: 100px; }
.shared-visual { position: relative; min-height: 520px; padding: 54px 30px; border-radius: 48px; background: linear-gradient(145deg, #ffe9a7, #ffcb51); }
.shared-visual::before, .shared-visual::after { content: ""; position: absolute; border-radius: 50%; background: rgba(255, 255, 255, .25); }
.shared-visual::before { width: 190px; height: 190px; top: -50px; right: -35px; }
.shared-visual::after { width: 110px; height: 110px; bottom: 20px; left: -25px; }
.shared-card { position: relative; z-index: 2; padding: 30px; border-radius: 30px; background: rgba(255, 255, 255, .93); box-shadow: 0 26px 60px rgba(96, 62, 0, .18); }
.shared-title { display: flex; align-items: center; gap: 13px; }
.shared-title img { width: 58px; height: 58px; }
.shared-title span { display: flex; flex-direction: column; gap: 3px; }
.shared-title small, .shared-total small { color: var(--muted); font-size: 10px; }
.shared-title strong { font-size: 14px; }
.shared-total { display: flex; flex-direction: column; gap: 6px; margin: 28px 0; }
.shared-total strong { font-size: 36px; font-variant-numeric: tabular-nums; }
.member-bars { display: grid; gap: 13px; }
.member-bars div { display: grid; grid-template-columns: 38px 1fr 34px; align-items: center; gap: 9px; font-size: 10px; }
.member-bars i { height: 8px; overflow: hidden; border-radius: 99px; background: #edeef0; }
.member-bars b { display: block; height: 100%; border-radius: inherit; background: var(--yellow); }
.member-bars em { color: var(--muted); font-style: normal; text-align: right; }
.shared-bubble { position: absolute; z-index: 3; right: -35px; bottom: 30px; padding: 13px 17px; border-radius: 16px 16px 4px 16px; background: #fff; box-shadow: 0 15px 32px rgba(80, 53, 0, .18); font-size: 11px; }
.shared-tags { display: flex; flex-wrap: wrap; gap: 9px; margin-top: 28px; }
.shared-tags span { padding: 9px 13px; border-radius: 999px; color: #70530f; background: #fff5d9; font-size: 11px; font-weight: 750; }

.steps-section { background: #faf8f2; }
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.step { position: relative; padding: 34px; border-radius: 30px; background: #fff; box-shadow: inset 0 0 0 1px rgba(0, 0, 0, .04), 0 12px 35px rgba(54, 48, 32, .05); }
.step > span { position: absolute; top: 26px; right: 28px; color: #b1aa9a; font-size: 11px; }
.step img { width: 70px; height: 70px; object-fit: contain; }
.step h3 { margin: 22px 0 8px; font-size: 20px; }
.step p { margin: 0; color: var(--muted); font-size: 13px; line-height: 1.7; }

.privacy-section { padding-top: 0; }
.privacy-card { display: grid; grid-template-columns: auto 1fr .65fr; align-items: center; gap: 34px; padding: 46px; border-radius: 38px; color: #fff; background: #28352e; box-shadow: 0 25px 65px rgba(34, 53, 43, .2); }
.privacy-icon { display: grid; width: 100px; height: 100px; place-items: center; border-radius: 30px; background: rgba(255, 255, 255, .1); }
.privacy-icon img { width: 76px; height: 76px; }
.privacy-card .eyebrow { color: #e8cf8d; }
.privacy-card h2 { margin-bottom: 12px; font-size: 36px; }
.privacy-card p { margin: 0; color: rgba(255, 255, 255, .65); font-size: 14px; line-height: 1.8; }
.privacy-card ul { display: grid; gap: 13px; margin: 0; padding: 0; list-style: none; color: rgba(255, 255, 255, .8); font-size: 12px; }
.privacy-card li { display: flex; gap: 9px; }
.privacy-card li span { color: #8de2bb; }

.final-cta { position: relative; display: grid; grid-template-columns: .8fr 1.2fr; align-items: center; gap: 48px; overflow: hidden; margin-bottom: 70px; padding: 54px 60px; border-radius: 44px; background: #ffd66e; box-shadow: 0 28px 70px rgba(146, 94, 0, .15); }
.final-cta::after { content: ""; position: absolute; right: 20%; bottom: -130px; width: 280px; height: 280px; border-radius: 50%; background: rgba(255, 255, 255, .25); }
.final-cta-copy, .wechat-entry-card { position: relative; z-index: 1; }
.final-cta h2 { margin-bottom: 8px; font-size: 43px; }
.final-cta p { margin: 0; color: #6d5008; }
.wechat-entry-card { padding: 0; overflow: hidden; border: 0; border-radius: 24px; background: #f5f5f5; box-shadow: 0 18px 42px rgba(99, 65, 0, .16), 0 0 0 1px rgba(0, 0, 0, .1); cursor: zoom-in; transition-property: transform, box-shadow; transition-duration: 170ms; }
.wechat-entry-card:hover { transform: translateY(-3px); box-shadow: 0 24px 50px rgba(99, 65, 0, .2), 0 0 0 1px rgba(0, 0, 0, .1); }
.wechat-entry-card:active { transform: scale(.96); }
.wechat-entry-card img { width: 100%; height: auto; }

.site-footer { display: grid; grid-template-columns: auto 1fr; gap: 35px 80px; width: min(1180px, calc(100% - 48px)); margin: 0 auto; padding: 38px 0 50px; border-top: 1px solid rgba(36, 33, 22, .08); }
.footer-brand { display: flex; align-items: center; gap: 12px; }
.footer-brand img { width: 52px; height: 52px; object-fit: contain; }
.footer-brand div { display: flex; flex-direction: column; gap: 4px; }
.footer-brand strong { font-size: 16px; }
.footer-brand span { color: var(--muted); font-size: 11px; }
.footer-links { display: flex; align-items: center; justify-content: flex-end; gap: 24px; color: var(--muted); font-size: 12px; }
.footer-links a:hover { color: var(--ink); }
.site-footer > p { grid-column: 1 / -1; margin: 0; color: #a09b8d; font-size: 10px; }

.wechat-dialog { width: min(760px, calc(100% - 32px)); padding: 34px; border: 0; border-radius: 28px; text-align: center; box-shadow: 0 30px 90px rgba(20, 18, 12, .28); }
.wechat-dialog::backdrop { background: rgba(31, 29, 23, .5); backdrop-filter: blur(5px); }
.wechat-dialog h2 { margin-bottom: 18px; padding-inline: 42px; font-size: 26px; }
.wechat-dialog > p { margin: 16px 0 0; color: var(--muted); font-size: 13px; line-height: 1.7; }
.wechat-entry-image { width: 100%; height: auto; border-radius: 20px; box-shadow: 0 0 0 1px rgba(0, 0, 0, .1); }
.dialog-close { position: absolute; top: 14px; right: 14px; display: grid; width: 40px; height: 40px; place-items: center; border: 0; border-radius: 12px; color: var(--muted); background: #f4f3ef; cursor: pointer; }

.reveal { opacity: 0; transform: translateY(18px); transition-property: opacity, transform; transition-duration: 650ms; transition-timing-function: cubic-bezier(.2, 0, 0, 1); }
.reveal-delay-1 { transition-delay: 90ms; }
.reveal-delay-2 { transition-delay: 180ms; }
.reveal.is-visible { opacity: 1; transform: translateY(0); }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
}

@media (max-width: 960px) {
  .hero { grid-template-columns: 1fr; gap: 30px; padding-top: 90px; }
  .hero-copy { text-align: center; }
  .hero-copy .eyebrow, .hero-actions, .trust-list { justify-content: center; }
  .hero-lead { margin-inline: auto; }
  .hero-visual { width: min(650px, 100%); margin-inline: auto; }
  .insight-layout, .shared-section { grid-template-columns: 1fr; }
  .insight-layout { gap: 65px; }
  .shared-section { gap: 55px; }
  .shared-visual { width: min(620px, 100%); margin-inline: auto; }
  .privacy-card { grid-template-columns: auto 1fr; }
  .privacy-card ul { grid-column: 2; }
  .final-cta { grid-template-columns: 1fr; }
}

@media (max-width: 720px) {
  .section-shell, .site-header, .site-footer { width: min(100% - 28px, 1180px); }
  .section { padding-block: 82px; }
  .site-header { top: 8px; margin-top: 8px; }
  .nav-toggle { display: grid; width: 44px; height: 44px; place-content: center; gap: 6px; border: 0; border-radius: 14px; background: #f4f1e8; }
  .nav-toggle span { display: block; width: 19px; height: 2px; border-radius: 9px; background: var(--ink); transition-property: transform; transition-duration: 160ms; }
  .nav-toggle[aria-expanded="true"] span:first-child { transform: translateY(4px) rotate(45deg); }
  .nav-toggle[aria-expanded="true"] span:last-child { transform: translateY(-4px) rotate(-45deg); }
  .site-nav { position: absolute; top: 72px; right: 0; left: 0; display: none; flex-direction: column; align-items: stretch; gap: 0; padding: 12px; border-radius: 20px; background: #fff; box-shadow: var(--shadow); }
  .site-nav.is-open { display: flex; }
  .site-nav a { min-height: 46px; padding: 13px 12px; }
  .hero { min-height: auto; padding-block: 72px 70px; }
  h1 { font-size: clamp(48px, 14vw, 66px); }
  h2 { font-size: clamp(36px, 11vw, 50px); }
  .hero-lead { font-size: 16px; }
  .hero-visual { min-height: 610px; transform: scale(.92); transform-origin: top center; }
  .float-photo { left: -20px; }
  .float-insight { right: -20px; }
  .quick-strip { grid-template-columns: 1fr 1fr; width: calc(100% - 28px); }
  .quick-strip div { padding: 18px; }
  .quick-strip div:nth-child(2) { border-right: 0; }
  .quick-strip div:nth-child(-n + 2) { border-bottom: 1px solid rgba(36, 33, 22, .08); }
  .feature-grid { grid-template-columns: 1fr; }
  .feature-card-large { grid-row: auto; min-height: 600px; }
  .insight-section { padding-block: 84px; }
  .insight-report { padding: 24px; border-radius: 30px; transform: none; }
  .shared-visual { min-height: 460px; padding: 42px 18px; }
  .shared-bubble { right: 8px; bottom: 22px; }
  .steps { grid-template-columns: 1fr; }
  .privacy-section { padding-top: 0; }
  .privacy-card { grid-template-columns: 1fr; padding: 32px; }
  .privacy-card ul { grid-column: auto; }
  .final-cta { grid-template-columns: 1fr; padding: 38px 30px; text-align: center; }
  .final-cta .eyebrow { justify-content: center; }
  .site-footer { grid-template-columns: 1fr; }
  .footer-links { flex-wrap: wrap; justify-content: flex-start; }
  .site-footer > p { grid-column: auto; }
}

@media (max-width: 430px) {
  .hero-visual { min-height: 555px; transform: scale(.82); margin-bottom: -95px; }
  .phone { width: 320px; }
  .float-photo { left: -50px; }
  .float-insight { right: -55px; }
  .hero-actions .button { width: 100%; }
  .trust-list { gap: 10px 18px; }
  .feature-card { padding: 27px; border-radius: 28px; }
  .feature-icon-stack span { width: 72px; height: 72px; }
  .shared-card { padding: 22px; }
  .report-score strong { font-size: 28px; }
  .wechat-dialog { padding: 30px 20px 24px; }
  .wechat-dialog h2 { margin-top: 28px; font-size: 22px; }
}