:root {
  --paper: #f6f4ef;
  --paper-deep: #ece8df;
  --ink: #17201f;
  --muted: #63706e;
  --line: #d9ddd8;
  --teal: #0c6b69;
  --teal-dark: #07514f;
  --coral: #e86f55;
  --white: #ffffff;
  --serif: Georgia, "Noto Serif SC", "Source Han Serif SC", serif;
  --sans: Inter, "Noto Sans SC", "Microsoft YaHei", system-ui, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--paper); color: var(--ink); font-family: var(--sans); line-height: 1.6; text-rendering: optimizeLegibility; }
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button, a { -webkit-tap-highlight-color: transparent; }
.container { width: min(1160px, calc(100% - 48px)); margin-inline: auto; }

.site-header { position: sticky; top: 0; z-index: 20; background: rgba(246, 244, 239, .94); border-bottom: 1px solid rgba(217, 221, 216, .7); backdrop-filter: blur(14px); }
.header-inner { min-height: 76px; display: flex; align-items: center; gap: 34px; }
.brand, .footer-brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 800; letter-spacing: .01em; }
.brand img { width: 34px; height: 34px; border-radius: 10px; }
.site-nav { display: flex; align-items: center; gap: 28px; margin-left: auto; color: var(--muted); font-size: 14px; }
.site-nav a, .footer-links a, .text-link { transition: color .2s ease; }
.site-nav a:hover, .footer-links a:hover, .text-link:hover { color: var(--teal); }
.menu-toggle { display: none; border: 1px solid var(--line); background: var(--white); border-radius: 8px; padding: 7px 10px; color: var(--ink); font: inherit; }

.button { display: inline-flex; align-items: center; justify-content: center; gap: 9px; min-height: 46px; padding: 0 18px; border: 1px solid transparent; border-radius: 8px; font-weight: 700; font-size: 14px; white-space: nowrap; transition: transform .2s ease, background-color .2s ease, border-color .2s ease; }
.button:hover { transform: translateY(-2px); }
.button-primary { background: var(--teal); color: var(--white); }
.button-primary:hover { background: var(--teal-dark); }
.button-quiet { background: transparent; color: var(--ink); border-color: var(--line); }
.button-quiet:hover, .button-outline:hover { background: var(--white); border-color: var(--teal); color: var(--teal); }
.button-outline { border-color: var(--line); color: var(--ink); background: transparent; }
.button-small { min-height: 38px; padding: 0 14px; font-size: 13px; }
.button-large { min-height: 52px; padding-inline: 24px; }

.hero { display: grid; grid-template-columns: minmax(0, 1.02fr) minmax(360px, .98fr); gap: 64px; align-items: center; min-height: 690px; padding-block: 74px 84px; }
.eyebrow { display: flex; align-items: center; gap: 9px; margin: 0 0 20px; color: var(--teal); font-size: 12px; font-weight: 800; letter-spacing: .13em; }
.eyebrow-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--coral); }
h1, h2, h3, p { margin-top: 0; }
h1 { max-width: 620px; margin-bottom: 26px; font-family: var(--serif); font-size: clamp(48px, 6vw, 82px); font-weight: 500; line-height: 1.08; letter-spacing: 0; }
.hero-lead { max-width: 570px; margin-bottom: 30px; color: var(--muted); font-size: 18px; line-height: 1.85; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 23px; }
.hero-note, .download-hint { display: flex; align-items: center; gap: 8px; color: var(--muted); font-size: 13px; }
.note-mark { display: inline-grid; width: 20px; height: 20px; place-items: center; border-radius: 50%; background: #d8ebe4; color: var(--teal); font-size: 12px; font-weight: 900; }
.hero-visual { position: relative; min-height: 570px; display: grid; place-items: center; }
.hero-visual::before { content: ""; position: absolute; width: 86%; height: 78%; background: var(--paper-deep); border: 1px solid #e1dcd2; transform: rotate(-4deg); }
.phone-shell { position: relative; width: min(295px, 68%); padding: 10px; border: 10px solid #192527; border-radius: 30px; background: #192527; box-shadow: 20px 22px 0 rgba(12, 107, 105, .14), 0 28px 55px rgba(23, 32, 31, .16); transform: rotate(3deg); }
.phone-screen { overflow: hidden; aspect-ratio: 426 / 927; border-radius: 17px; background: #eef1ef; }
.phone-screen img { width: 100%; height: 100%; object-fit: cover; object-position: top center; }
.phone-speaker { position: absolute; z-index: 2; top: -3px; left: 50%; width: 72px; height: 5px; border-radius: 4px; background: #2e3c3e; transform: translateX(-50%); }
.phone-home { position: absolute; bottom: -3px; left: 50%; width: 72px; height: 4px; border-radius: 4px; background: #809092; transform: translateX(-50%); }
.visual-label { position: absolute; z-index: 3; display: flex; align-items: center; gap: 9px; padding: 11px 14px; border: 1px solid var(--line); border-radius: 8px; background: var(--white); box-shadow: 0 12px 22px rgba(23, 32, 31, .08); color: var(--ink); font-size: 12px; font-weight: 800; }
.visual-label-top { top: 70px; right: 0; }
.visual-label-bottom { bottom: 60px; left: 0; }
.label-dot { width: 8px; height: 8px; border-radius: 50%; }
.label-dot.coral { background: var(--coral); }
.label-dot.teal { background: var(--teal); }

.proof-strip { border-block: 1px solid var(--line); background: var(--white); }
.proof-grid { display: grid; grid-template-columns: repeat(3, 1fr); }
.proof-item { display: flex; flex-direction: column; gap: 2px; min-height: 96px; justify-content: center; padding-inline: 24px; border-right: 1px solid var(--line); }
.proof-item:first-child { padding-left: 0; }
.proof-item:last-child { border-right: 0; padding-right: 0; }
.proof-item strong { font-size: 15px; }
.proof-item span { color: var(--muted); font-size: 13px; }

.section { padding-block: 132px; }
.section-heading { max-width: 610px; margin-bottom: 44px; }
.section-heading h2, .local-intro h2, .download-copy h2, .workflow-copy h2 { margin-bottom: 18px; font-family: var(--serif); font-size: clamp(34px, 4vw, 52px); font-weight: 500; line-height: 1.16; }
.section-heading > p:last-child, .local-intro > p:last-child, .download-copy > p { max-width: 590px; color: var(--muted); font-size: 16px; }
.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.feature-card { min-height: 246px; padding: 26px; border: 1px solid var(--line); border-radius: 8px; background: rgba(255, 255, 255, .64); }
.feature-card-wide { grid-column: span 2; display: grid; grid-template-columns: 54px 1fr; gap: 12px; }
.feature-card-accent { background: #e4efeb; border-color: #c9ded8; }
.feature-index { color: var(--coral); font-size: 13px; font-weight: 900; letter-spacing: .08em; }
.feature-card h3 { margin: 13px 0 9px; font-size: 19px; }
.feature-card p { margin-bottom: 15px; color: var(--muted); font-size: 14px; line-height: 1.75; }
.feature-tag { display: inline-block; padding: 4px 9px; border-radius: 5px; background: var(--white); color: var(--teal); font-size: 11px; font-weight: 800; }

.workflow-band { padding-block: 110px; background: var(--teal-dark); color: var(--white); }
.workflow-layout { display: grid; grid-template-columns: .9fr 1.1fr; gap: 100px; align-items: center; }
.eyebrow-light { color: #a8dfd3; }
.workflow-copy h2 { max-width: 480px; }
.workflow-copy > p:not(.eyebrow) { max-width: 480px; margin-bottom: 26px; color: #c5d8d4; }
.light-link { color: var(--white); font-weight: 800; }
.light-link:hover { color: #a8dfd3; }
.workflow-steps { display: grid; grid-template-columns: repeat(2, 1fr); gap: 0; margin: 0; padding: 0; list-style: none; border-top: 1px solid rgba(255,255,255,.25); }
.workflow-steps li { display: grid; grid-template-columns: 46px 1fr; gap: 14px; min-height: 148px; padding: 25px 20px 20px 0; border-bottom: 1px solid rgba(255,255,255,.25); }
.workflow-steps li:nth-child(odd) { padding-right: 30px; border-right: 1px solid rgba(255,255,255,.25); }
.workflow-steps li:nth-child(even) { padding-left: 30px; }
.step-number { color: #a8dfd3; font-size: 12px; font-weight: 900; letter-spacing: .1em; }
.workflow-steps strong { font-size: 17px; }
.workflow-steps p { margin: 6px 0 0; color: #c5d8d4; font-size: 13px; line-height: 1.65; }

.local-section { display: grid; grid-template-columns: .9fr 1.1fr; gap: 100px; align-items: start; }
.local-intro h2 { max-width: 470px; }
.local-list { border-top: 1px solid var(--line); }
.local-row { display: grid; grid-template-columns: 44px 1fr; gap: 12px; padding: 23px 0; border-bottom: 1px solid var(--line); }
.local-icon { display: grid; width: 32px; height: 32px; place-items: center; border: 1px solid #b8d3cc; border-radius: 50%; color: var(--teal); font-weight: 900; }
.local-row strong { font-size: 16px; }
.local-row p { margin: 4px 0 0; color: var(--muted); font-size: 14px; }

.download-section { padding-block: 110px; background: var(--paper-deep); border-block: 1px solid #e0dbd2; }
.download-layout { display: grid; grid-template-columns: 1fr 360px; gap: 90px; align-items: center; }
.download-copy h2 { max-width: 640px; }
.download-actions { display: flex; flex-wrap: wrap; gap: 12px; margin: 29px 0 17px; }
.download-hint { font-size: 12px; }
.download-status-dot { width: 8px; height: 8px; border-radius: 50%; background: #4fae75; }
.download-details { padding: 26px; border: 1px solid #d6d0c5; border-radius: 8px; background: rgba(255,255,255,.55); }
.detail-label { margin-bottom: 17px; color: var(--teal); font-size: 12px; font-weight: 900; letter-spacing: .12em; }
.download-details dl { margin: 0; }
.download-details dl > div { display: flex; justify-content: space-between; gap: 16px; padding: 12px 0; border-bottom: 1px solid #ded9d0; font-size: 13px; }
.download-details dl > div:last-child { border-bottom: 0; }
.download-details dt { color: var(--muted); }
.download-details dd { margin: 0; text-align: right; font-weight: 800; }
code { padding: 2px 5px; border-radius: 4px; background: #e3e0d9; font-size: 11px; }
.detail-note { margin: 20px 0 0; padding-top: 17px; border-top: 1px solid #ded9d0; color: var(--muted); font-size: 12px; line-height: 1.65; }

.faq-section { padding-top: 116px; padding-bottom: 140px; }
.faq-list { max-width: 820px; border-top: 1px solid var(--line); }
.faq-list details { border-bottom: 1px solid var(--line); }
.faq-list summary { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 21px 0; cursor: pointer; list-style: none; font-size: 16px; font-weight: 800; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after { content: "+"; color: var(--teal); font-size: 22px; font-weight: 400; }
.faq-list details[open] summary::after { content: "−"; }
.faq-list details p { max-width: 690px; margin: -4px 0 21px; color: var(--muted); font-size: 14px; }

.site-footer { padding-block: 28px; border-top: 1px solid var(--line); background: var(--white); }
.footer-inner { display: grid; grid-template-columns: auto 1fr auto auto; align-items: center; gap: 20px; font-size: 12px; }
.footer-brand img { width: 26px; height: 26px; border-radius: 7px; }
.footer-inner > p { margin: 0; color: var(--muted); }
.footer-links { display: flex; gap: 17px; color: var(--muted); }
.copyright { text-align: right; }
.filing-record { margin: 18px 0 0; padding-top: 14px; border-top: 1px solid var(--line); text-align: center; color: var(--muted); font-size: 12px; }
.filing-record a { color: var(--muted); text-decoration: none; }
.filing-record a:hover { color: var(--teal); text-decoration: underline; text-underline-offset: 3px; }

[data-reveal] { opacity: 0; transform: translateY(16px); transition: opacity .65s ease, transform .65s ease; }
[data-reveal].is-visible { opacity: 1; transform: none; }

@media (max-width: 900px) {
  .container { width: min(100% - 36px, 680px); }
  .header-inner { gap: 16px; }
  .header-download { margin-left: auto; }
  .site-nav { position: absolute; top: 68px; left: 18px; right: 18px; display: none; flex-direction: column; align-items: stretch; gap: 0; padding: 8px; border: 1px solid var(--line); border-radius: 8px; background: var(--white); box-shadow: 0 12px 30px rgba(23,32,31,.1); }
  .site-nav.is-open { display: flex; }
  .site-nav a { padding: 12px; }
  .menu-toggle { display: block; margin-left: auto; }
  .header-download { margin-left: 0; }
  .hero { grid-template-columns: 1fr; gap: 30px; min-height: 0; padding-block: 68px 75px; }
  .hero-visual { min-height: 530px; }
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
  .feature-card-wide { grid-column: span 2; }
  .workflow-layout, .local-section { grid-template-columns: 1fr; gap: 50px; }
  .download-layout { grid-template-columns: 1fr; gap: 40px; }
  .footer-inner { grid-template-columns: 1fr 1fr; }
  .footer-links { justify-content: flex-end; }
  .copyright { text-align: left; }
}

@media (max-width: 600px) {
  .container { width: min(100% - 28px, 520px); }
  .site-header { position: relative; }
  .brand span { font-size: 14px; }
  .header-download { display: none; }
  .menu-toggle { margin-left: auto; }
  .hero { gap: 0; padding-block: 46px 0; overflow: hidden; }
  h1 { margin-bottom: 18px; font-size: clamp(42px, 12vw, 52px); }
  .hero-lead { font-size: 16px; line-height: 1.75; }
  .hero-actions { margin-bottom: 17px; }
  .hero-visual { min-height: 235px; height: 235px; overflow: hidden; }
  .phone-shell { width: 185px; margin-top: 34px; }
  .visual-label { padding: 9px 10px; font-size: 11px; }
  .visual-label-top { top: 24px; right: 4px; }
  .visual-label-bottom { display: none; }
  .proof-grid { grid-template-columns: 1fr; }
  .proof-item, .proof-item:first-child, .proof-item:last-child { min-height: 0; padding: 17px 0; border-right: 0; border-bottom: 1px solid var(--line); }
  .proof-item:last-child { border-bottom: 0; }
  .section { padding-block: 88px; }
  .section-heading { margin-bottom: 31px; }
  .section-heading h2, .local-intro h2, .download-copy h2, .workflow-copy h2 { font-size: 37px; }
  .feature-grid { grid-template-columns: 1fr; gap: 10px; }
  .feature-card, .feature-card-wide { grid-column: auto; min-height: 0; padding: 22px; }
  .feature-card-wide { grid-template-columns: 42px 1fr; }
  .workflow-band { padding-block: 78px; }
  .workflow-steps { grid-template-columns: 1fr; }
  .workflow-steps li, .workflow-steps li:nth-child(odd), .workflow-steps li:nth-child(even) { min-height: 0; padding: 20px 0; border-right: 0; }
  .download-section { padding-block: 78px; }
  .download-details { padding: 21px; }
  .faq-section { padding-bottom: 90px; }
  .footer-inner { grid-template-columns: 1fr; gap: 12px; }
  .footer-links { justify-content: flex-start; flex-wrap: wrap; gap: 12px 18px; }
  .copyright { text-align: left; }
}

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

.legal-page { max-width: 850px; padding-block: 88px 120px; }
.legal-page h1 { margin-bottom: 10px; font-size: clamp(42px, 6vw, 68px); }
.legal-updated { margin-bottom: 52px; color: var(--muted); font-size: 13px; }
.legal-content { border-top: 1px solid var(--line); padding-top: 33px; }
.legal-content h2 { margin: 43px 0 13px; font-family: var(--serif); font-size: 28px; font-weight: 500; line-height: 1.25; }
.legal-content h3 { margin: 24px 0 6px; font-size: 17px; }
.legal-content p, .legal-content li { color: var(--muted); font-size: 15px; line-height: 1.9; }
.legal-content ol { margin: 0; padding-left: 22px; }
.legal-content code { color: var(--ink); }

@media (max-width: 600px) {
  .legal-page { padding-block: 62px 84px; }
  .legal-updated { margin-bottom: 35px; }
  .legal-content h2 { font-size: 25px; }
  .legal-content p, .legal-content li { font-size: 14px; }
}