:root {
  --pine: #0c5d45;
  --pine-deep: #073f31;
  --pine-soft: #dceee4;
  --mint: #f2f8f4;
  --paper: #fffefb;
  --ink: #18352b;
  --muted: #66756f;
  --line: #d8e3dc;
  --red: #b64d3c;
  --gold: #b9892f;
  --shadow: 0 24px 60px rgba(8, 63, 49, .14);
  --radius: 6px;
  --shell: min(1180px, calc(100% - 48px));
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 84px; }
body { margin: 0; color: var(--ink); background: var(--paper); font-family: "Noto Sans SC", "Microsoft YaHei", "PingFang SC", sans-serif; line-height: 1.7; }
body.dialog-open { overflow: hidden; }
button, summary { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
img { display: block; max-width: 100%; }
.qr-media { display: block; width: var(--qr-size, 180px); aspect-ratio: 1; overflow: hidden; margin-inline: auto; background: white; }
.qr-media > img { width: 100%; height: 100%; max-width: none; object-fit: contain; object-position: center; }
a { color: inherit; text-decoration: none; }
h1, h2, h3, p { margin-top: 0; }
h1, h2 { font-family: "STSong", "SimSun", serif; font-weight: 500; letter-spacing: 0; }
h2 { font-size: clamp(36px, 4vw, 58px); line-height: 1.2; margin-bottom: 22px; }
.shell { width: var(--shell); margin-inline: auto; }
.skip-link { position: fixed; left: 16px; top: -80px; z-index: 200; padding: 10px 16px; background: var(--paper); border: 2px solid var(--pine); }
.skip-link:focus { top: 12px; }
:focus-visible { outline: 3px solid #e8aa46; outline-offset: 3px; }

.site-header { position: sticky; top: 0; z-index: 50; height: 72px; background: rgba(255, 254, 251, .94); border-bottom: 1px solid rgba(12, 93, 69, .1); backdrop-filter: blur(14px); }
.header-inner { height: 100%; display: flex; align-items: center; gap: 42px; }
.brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 800; color: var(--pine-deep); white-space: nowrap; }
.brand-mark { display: grid; place-items: center; width: 32px; height: 32px; border: 1px solid var(--red); border-radius: 50%; color: var(--red); font-family: "STSong", "SimSun", serif; }
.desktop-nav { display: flex; align-items: center; gap: 30px; margin-left: auto; color: #496158; font-size: 14px; }
.desktop-nav a:hover { color: var(--pine); }
.header-action { min-height: 42px !important; padding-inline: 22px !important; }

.button { min-height: 48px; border: 1px solid transparent; border-radius: 4px; padding: 11px 24px; cursor: pointer; font-weight: 700; letter-spacing: 0; transition: transform .18s ease, background .18s ease, border-color .18s ease; }
.button:hover { transform: translateY(-2px); }
.button-primary { color: white; background: var(--pine); box-shadow: 0 10px 24px rgba(12, 93, 69, .16); }
.button-primary:hover { background: var(--pine-deep); }
.button-secondary { color: var(--pine-deep); background: transparent; border-color: var(--pine); }
.button-secondary:hover { background: rgba(12, 93, 69, .06); }
.button-large { min-height: 54px; padding-inline: 30px; }

.hero { min-height: 700px; background: var(--mint); overflow: hidden; }
.hero-grid { min-height: 700px; display: grid; grid-template-columns: minmax(0, .92fr) minmax(520px, 1.08fr); align-items: center; gap: 60px; padding-block: 56px 40px; }
.eyebrow { margin-bottom: 18px; color: var(--pine); font-size: 14px; font-weight: 800; }
.eyebrow.red { color: var(--red); }
.eyebrow.gold { color: #f1be58; }
.hero h1 { margin-bottom: 24px; font-size: clamp(56px, 5.2vw, 78px); line-height: 1.14; color: var(--pine-deep); }
.hero h1 span { color: var(--pine); }
.hero-lead { max-width: 590px; margin-bottom: 32px; color: #536a61; font-size: 18px; }
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; }
.hero-proof { position: relative; min-height: 590px; }
.phone { position: relative; overflow: hidden; border: 8px solid #173a30; border-radius: 28px; background: white; box-shadow: var(--shadow); }
.phone::before { content: ""; position: absolute; z-index: 2; top: 8px; left: 50%; width: 54px; height: 5px; transform: translateX(-50%); border-radius: 4px; background: rgba(14, 41, 33, .52); }
.phone img { width: 100%; height: 100%; object-fit: cover; object-position: top; }
.phone-hero { position: absolute; right: 24px; bottom: -72px; width: 310px; height: 674px; transform: rotate(2deg); }
.qr-ticket { position: absolute; z-index: 3; left: 8px; bottom: 44px; width: 230px; padding: 22px; background: var(--paper); box-shadow: var(--shadow); border: 1px solid rgba(12, 93, 69, .12); }
.qr-ticket .qr-media { --qr-size: 176px; margin-bottom: 12px; }
.qr-ticket strong, .qr-ticket span { display: block; text-align: center; }
.qr-ticket strong { color: var(--pine-deep); }
.qr-ticket span { margin-top: 2px; color: var(--muted); font-size: 12px; }

.service-chain { position: relative; z-index: 4; background: white; border-bottom: 1px solid var(--line); }
.chain-grid { display: grid; grid-template-columns: repeat(3, 1fr); }
.chain-grid article { display: flex; gap: 18px; padding: 36px 34px; border-left: 1px solid var(--line); }
.chain-grid article:last-child { border-right: 1px solid var(--line); }
.chain-grid article > span { color: var(--red); font-weight: 800; }
.chain-grid h2 { margin-bottom: 4px; font-family: inherit; font-size: 18px; font-weight: 800; }
.chain-grid p { margin-bottom: 0; color: var(--muted); font-size: 14px; }

.mid-qr-band { background: #e7f2ec; border-bottom: 1px solid var(--line); }
.mid-qr-inner { display: grid; grid-template-columns: 118px minmax(0, 1fr) auto; align-items: center; gap: 28px; padding-block: 24px; }
.mid-qr-inner .qr-media { --qr-size: 118px; margin: 0; border: 8px solid white; box-shadow: 0 12px 30px rgba(7, 63, 49, .1); }
.mid-qr-copy strong, .mid-qr-copy span { display: block; }
.mid-qr-copy strong { margin-bottom: 4px; color: var(--pine-deep); font-size: 22px; }
.mid-qr-copy span { color: var(--muted); font-size: 14px; }

.section { padding-block: 112px; }
.process-section { background: var(--paper); }
.process-layout { display: grid; grid-template-columns: .8fr 1.15fr .72fr; gap: 70px; align-items: center; }
.section-intro { align-self: start; padding-top: 36px; }
.process-section .section-intro h2 { font-size: clamp(42px, 3.35vw, 48px); }
.section-intro > p:last-child, .feature-heading > p:last-child, .shop-copy > p, .final-copy > p:last-child { color: var(--muted); }
.timeline { position: relative; display: grid; gap: 24px; margin: 0; padding: 0; list-style: none; }
.timeline::before { content: ""; position: absolute; top: 24px; bottom: 24px; left: 20px; width: 1px; background: #8bc6ad; }
.timeline li { position: relative; display: grid; grid-template-columns: 42px 1fr; gap: 18px; }
.timeline li > span { z-index: 1; display: grid; place-items: center; width: 42px; height: 42px; border: 1px solid #66aa8e; border-radius: 50%; background: var(--paper); color: var(--pine); font-size: 12px; font-weight: 800; }
.timeline h3 { margin: 0 0 4px; font-size: 18px; }
.timeline p { margin: 0; color: var(--muted); font-size: 14px; }
.phone-process { width: 280px; height: 610px; justify-self: end; }

.feature-section { background: var(--pine-deep); color: white; overflow: hidden; }
.feature-heading { max-width: 620px; margin-bottom: 54px; }
.feature-heading h2 { color: white; }
.feature-heading > p:last-child { color: #bcd4ca; }
.feature-stage { display: grid; grid-template-columns: 1fr 1fr; gap: 70px; align-items: end; }
.feature-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px; background: rgba(255,255,255,.14); border: 1px solid rgba(255,255,255,.14); }
.feature-list article { min-height: 190px; padding: 28px; background: #124f40; }
.feature-list article > span { color: #efb859; font-size: 12px; font-weight: 800; }
.feature-list h3 { margin: 14px 0 8px; font-size: 18px; }
.feature-list p { margin: 0; color: #bfd2ca; font-size: 14px; }
.screen-pair { position: relative; min-height: 570px; }
.screen-pair .phone { position: absolute; bottom: -176px; width: 265px; height: 575px; }
.screen-pair .phone:first-child { left: 0; transform: rotate(-2deg); }
.screen-pair .phone:last-child { right: 0; transform: rotate(2deg) translateY(-28px); }

.shop-section { padding-top: 160px; background: var(--paper); }
.shop-layout { display: grid; grid-template-columns: minmax(380px, .9fr) 1.1fr; gap: 110px; align-items: center; }
.shop-preview { width: min(100%, 460px); overflow: hidden; justify-self: center; border: 1px solid var(--line); box-shadow: var(--shadow); background: white; }
.shop-preview img { width: 100%; height: auto; }
.shop-copy { max-width: 570px; }
.product-list { margin: 34px 0 0; padding: 0; list-style: none; border-top: 1px solid var(--line); }
.product-list li { display: flex; justify-content: space-between; gap: 20px; padding: 18px 2px; border-bottom: 1px solid var(--line); }
.product-list span { font-weight: 800; }
.product-list b { color: var(--red); font-size: 13px; font-weight: 700; }

.reassurance-section { background: #e7f2ec; }
.reassurance-layout { display: grid; grid-template-columns: .75fr 1.25fr; gap: 100px; align-items: start; }
.reassurance-list { display: grid; gap: 14px; }
.reassurance-list article { display: grid; grid-template-columns: 46px 1fr; gap: 20px; padding: 24px 28px; background: rgba(255, 254, 251, .9); border-left: 3px solid transparent; transition: border-color .18s ease, transform .18s ease; }
.reassurance-list article:hover { border-left-color: var(--pine); transform: translateX(4px); }
.reassurance-list article > span { display: grid; place-items: center; width: 38px; height: 38px; border-radius: 50%; background: var(--pine); color: white; font-size: 11px; font-weight: 800; }
.reassurance-list h3 { margin: 0 0 3px; font-size: 17px; }
.reassurance-list p { margin: 0; color: var(--muted); font-size: 14px; }

.faq-section { background: var(--paper); }
.faq-layout { display: grid; grid-template-columns: .72fr 1.28fr; gap: 100px; }
.faq-heading { position: sticky; top: 112px; align-self: start; }
.faq-list { border-top: 1px solid var(--line); }
.faq-list details { border-bottom: 1px solid var(--line); }
.faq-list summary { position: relative; padding: 25px 44px 25px 0; cursor: pointer; font-size: 18px; font-weight: 800; list-style: none; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after { content: "+"; position: absolute; right: 8px; top: 21px; color: var(--pine); font-size: 26px; font-weight: 400; }
.faq-list details[open] summary::after { content: "−"; }
.faq-list details p { margin: -8px 54px 24px 0; color: var(--muted); }

.final-cta { background: var(--mint); }
.final-cta.section { padding-block: clamp(48px, 5vw, 70px) 36px; }
.final-grid { display: grid; grid-template-columns: minmax(320px, .8fr) minmax(460px, 1.2fr); gap: clamp(40px, 6vw, 80px); align-items: start; }
.final-copy { max-width: 500px; }
.qr-grid { display: grid; grid-template-columns: repeat(2, 1fr); align-items: stretch; gap: 22px; }
.qr-card { display: grid; grid-template-rows: auto minmax(0, 1fr); align-self: stretch; height: 100%; min-height: 0; margin: 0; padding: 28px; background: white; border: 1px solid var(--line); }
.qr-card .qr-media { --qr-size: min(100%, 230px); margin-bottom: 20px; }
.qr-card figcaption { display: flex; flex-direction: column; min-height: 118px; }
.qr-card figcaption strong, .qr-card figcaption span { display: block; text-align: center; }
.qr-card figcaption strong { color: var(--pine); }
.qr-card figcaption span { color: var(--muted); font-size: 13px; }
.qr-action-button { display: flex; align-items: center; justify-content: center; width: 100%; min-height: 42px; margin-top: auto; padding: 8px 12px; border: 1px solid var(--pine); border-radius: 4px; color: white; background: var(--pine); text-align: center; font-size: 13px; font-weight: 800; cursor: pointer; }
.qr-action-button:hover { background: var(--pine-deep); }

.site-footer { padding-block: 42px; background: white; border-top: 1px solid var(--line); }
.footer-inner { display: grid; grid-template-columns: .55fr 1.45fr; gap: 80px; color: var(--muted); font-size: 12px; }
.footer-inner p { margin: 0; }
.footer-inner strong { color: var(--pine-deep); font-size: 15px; }
.footer-brand { display: grid; align-content: start; gap: 5px; }
.footer-detail { display: grid; gap: 15px; }
.filing-list { display: flex; align-items: center; flex-wrap: wrap; gap: 8px 18px; color: #536a61; }
.filing-item[hidden], .filing-item > [hidden] { display: none; }
.filing-item a { text-decoration: underline; text-decoration-color: #a8bab2; text-underline-offset: 4px; transition: color .18s ease, text-decoration-color .18s ease; }
.filing-item a:hover { color: var(--pine); text-decoration-color: var(--pine); }
.filing-police::before { content: ""; display: inline-block; width: 12px; height: 14px; margin-right: 6px; vertical-align: -2px; border: 1px solid currentColor; border-radius: 6px 6px 8px 8px; }
.mobile-action-bar { display: none; }

.dialog-backdrop { position: fixed; inset: 0; z-index: 100; display: grid; place-items: center; padding: 20px; background: rgba(4, 34, 27, .72); }
.dialog-backdrop[hidden] { display: none; }
.qr-dialog { position: relative; width: min(420px, 100%); max-height: calc(100dvh - 40px); overflow: auto; padding: 38px 34px 30px; text-align: center; background: var(--paper); border-radius: var(--radius); box-shadow: 0 30px 90px rgba(0,0,0,.28); }
.dialog-close { position: absolute; top: 10px; right: 12px; display: grid; place-items: center; width: 40px; height: 40px; padding: 0; border: 0; background: transparent; color: var(--muted); cursor: pointer; font-size: 30px; line-height: 1; }
.dialog-kicker { margin-bottom: 8px; color: var(--red); font-size: 13px; font-weight: 800; }
.qr-dialog h2 { margin-bottom: 10px; font-family: inherit; font-size: 24px; font-weight: 800; }
.qr-dialog > p:not(.dialog-kicker):not(.dialog-tip) { margin-bottom: 20px; color: var(--muted); font-size: 14px; }
.qr-dialog .qr-media { --qr-size: min(240px, 76vw); margin-bottom: 14px; }
.dialog-tip { margin: 0; color: var(--pine); font-size: 12px; }

@media (max-width: 980px) {
  .hero-grid { grid-template-columns: 1fr 430px; gap: 20px; }
  .qr-ticket { width: 190px; padding: 16px; }
  .qr-ticket .qr-media { --qr-size: 145px; }
  .phone-hero { right: 0; }
  .process-layout { grid-template-columns: .8fr 1fr; gap: 50px; }
  .phone-process { display: none; }
  .feature-stage { gap: 40px; }
  .screen-pair .phone { width: 225px; height: 490px; }
  .shop-layout { gap: 60px; }
}

@media (max-width: 820px) {
  :root { --shell: min(100% - 32px, 600px); }
  html { scroll-padding-top: 64px; }
  body { padding-bottom: calc(72px + env(safe-area-inset-bottom)); }
  h2 { font-size: 36px; }
  .site-header { height: 62px; }
  .header-inner { gap: 12px; }
  .desktop-nav, .header-action, .desktop-only { display: none; }
  .brand { font-size: 15px; }
  .brand-mark { width: 29px; height: 29px; }
  .hero { min-height: auto; }
  .hero-grid { min-height: auto; grid-template-columns: 1fr; gap: 24px; padding-block: 48px 0; }
  .hero h1 { font-size: 46px; line-height: 1.16; }
  .hero-lead { margin-bottom: 25px; font-size: 16px; }
  .hero-actions { display: none; }
  .hero-proof { min-height: 440px; }
  .phone-hero { right: 50%; bottom: -120px; width: 260px; height: 565px; transform: translateX(50%) rotate(1deg); }
  .service-chain { padding-block: 18px; }
  .chain-grid { grid-template-columns: 1fr; }
  .chain-grid article { padding: 17px 4px; border: 0; border-bottom: 1px solid var(--line); }
  .chain-grid article:last-child { border: 0; }
  .mid-qr-inner { grid-template-columns: 96px minmax(0, 1fr); gap: 18px; padding-block: 20px; }
  .mid-qr-inner .qr-media { --qr-size: 96px; border-width: 6px; }
  .mid-qr-copy strong { font-size: 19px; }
  .mid-qr-copy span { font-size: 12px; }
  .mid-qr-inner > .button { display: none; }
  .section { padding-block: 76px; }
  .process-layout, .feature-stage, .shop-layout, .reassurance-layout, .faq-layout, .final-grid { grid-template-columns: 1fr; gap: 42px; }
  .section-intro { padding-top: 0; }
  .process-section .section-intro h2 { font-size: 36px; }
  .timeline { gap: 22px; }
  .timeline li { grid-template-columns: 40px 1fr; gap: 15px; }
  .timeline li > span { width: 40px; height: 40px; }
  .feature-heading { margin-bottom: 36px; }
  .feature-list { grid-template-columns: 1fr; }
  .feature-list article { min-height: 0; padding: 23px; }
  .screen-pair { min-height: 410px; }
  .screen-pair .phone { bottom: -115px; width: 49%; height: 410px; border-width: 5px; border-radius: 18px; }
  .screen-pair .phone:last-child { transform: rotate(2deg) translateY(-18px); }
  .shop-section { padding-top: 120px; }
  .shop-preview { order: 2; width: min(100%, 420px); }
  .product-list li { align-items: center; }
  .product-list b { max-width: 44%; text-align: right; }
  .reassurance-layout { gap: 26px; }
  .reassurance-list article { padding: 20px; }
  .faq-layout { gap: 18px; }
  .faq-heading { position: static; }
  .faq-list summary { font-size: 16px; }
  .faq-list details p { margin-right: 20px; font-size: 14px; }
  .qr-grid { gap: 12px; }
  .qr-card { padding: 16px 10px; }
  .qr-card .qr-media { margin-bottom: 12px; }
  .qr-card figcaption strong { font-size: 14px; }
  .qr-card figcaption span { font-size: 11px; }
  .qr-card figcaption { min-height: 110px; }
  .qr-action-button { min-height: 40px; padding-inline: 6px; font-size: 12px; }
  .footer-inner { grid-template-columns: 1fr; gap: 18px; }
  .footer-detail { gap: 13px; }
  .filing-list { align-items: flex-start; flex-direction: column; gap: 7px; }
  .mobile-action-bar { position: fixed; z-index: 45; right: 0; bottom: 0; left: 0; display: grid; grid-template-columns: 1.35fr .9fr; gap: 10px; padding: 10px 16px calc(10px + env(safe-area-inset-bottom)); background: rgba(255, 254, 251, .97); border-top: 1px solid var(--line); box-shadow: 0 -8px 28px rgba(7, 63, 49, .1); backdrop-filter: blur(12px); }
  .mobile-action-bar .button { width: 100%; padding-inline: 10px; }
  .qr-dialog { padding: 36px 22px 24px; }
}

@media (max-width: 360px) {
  :root { --shell: calc(100% - 24px); }
  .hero h1 { font-size: 40px; }
  h2 { font-size: 32px; }
  .hero-proof { min-height: 410px; }
  .phone-hero { width: 235px; height: 510px; }
  .reassurance-list article { grid-template-columns: 38px 1fr; gap: 14px; padding: 18px 14px; }
  .reassurance-list article > span { width: 34px; height: 34px; }
  .mid-qr-inner { grid-template-columns: 88px minmax(0, 1fr); gap: 14px; }
  .mid-qr-inner .qr-media { --qr-size: 88px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
}