:root {
  --gold: #a77832;
  --gold-light: #e0bf79;
  --gold-dark: #865223;
  --text-dark: #493528;
  --text-light: #92816e;
  --page: #fff7e9;
  --follow-height: 112px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 0; }
body { margin: 0; color: var(--text-dark); background: var(--page); font: 15px/1.7 -apple-system,BlinkMacSystemFont,'PingFang SC','Microsoft YaHei',sans-serif; }
body.modal-open { overflow: hidden; }
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
button { font: inherit; }
a,button,[role=button] { -webkit-tap-highlight-color: transparent; }
:focus-visible { outline: 3px solid #b88633; outline-offset: 5px; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; border: 0; }
.fullpage-wrapper { width: 100%; overflow: clip; }
.fullpage-section { position: relative; width: 100%; }
.section-inner { position: relative; width: min(100% - 64px,1200px); margin-inline: auto; z-index: 1; }

/* The artwork always starts at the viewport edge. No pixel offsets. */
.hero { isolation: isolate; min-height: 660px; min-height: max(660px,100svh); background: #fff1d8; }
.hero-bg { position: absolute; inset: 0; z-index: -2; background: url('https://img.alicdn.com/imgextra/i4/1859470717/O1CN0151qrAY3TKFB3OTaP_!!1859470717.png') center / cover no-repeat; }
.hero-bg::after { content: ''; position: absolute; inset: 0; background: linear-gradient(180deg,#fff8eb25 0%,transparent 48%,#fff1da12 80%,#fff7e9 100%); }
.hero .section-inner { min-height: inherit; display: flex; flex-direction: column; align-items: center; padding-block: clamp(42px,7vh,100px) 24px; }
.hero-content { display: flex; flex-direction: column; align-items: center; width: 100%; text-align: center; }
.hero-eyebrow { display: none; }
.hero-logo { width: clamp(300px,28vw,440px); height: auto; filter: drop-shadow(0 4px 15px #fff5dba8); }
.hero-slogan { margin: 18px 0 24px; padding: 4px 20px; font: 600 clamp(17px,1.3vw,21px)/1.7 'STKaiti','KaiTi',serif; letter-spacing: 4px; color: #553625; text-shadow: 0 1px 6px #fff; background: #fff9ed70; border-radius: 24px; backdrop-filter: blur(4px); }
.hero-slogan span { color: #9c3e23; }
.hero-downloads { display: flex; justify-content: center; gap: clamp(14px,1.8vw,28px); width: 100%; }
.download-button { display: inline-flex; align-items: center; justify-content: center; gap: 10px; min-width: 0; width: clamp(178px,15.5vw,226px); height: 68px; padding: 10px 15px; border: 2px solid #c8a45a; border-radius: 38px; position: relative; color: #ffedbd; background: linear-gradient(160deg,#638e81,#346257 60%,#234b42); box-shadow: inset 0 0 0 2px #f5df9a,inset 0 0 0 5px #536e53,0 7px 17px #35493b26; text-shadow: 0 2px 3px #284a40; transition: transform .2s,box-shadow .2s,filter .2s; }
.download-button::before { content: ''; position: absolute; inset: 6px; border: 1px solid #d9c78d; border-radius: inherit; pointer-events: none; }
.download-button i { font-size: 25px; color: #ffdfa3; }
.download-button strong { display: block; white-space: nowrap; font: 700 21px/1.35 Georgia,'STKaiti','KaiTi',serif; letter-spacing: 1px; }
.download-button small { display: block; font-size: 9px; font-weight: 600; line-height: 1.5; letter-spacing: 1.2px; opacity: .78; }
@media (hover: hover) and (pointer: fine) { .download-button:hover { transform: translateY(-3px); filter: brightness(1.08); box-shadow: inset 0 0 0 2px #f5df9a,inset 0 0 0 5px #536e53,0 10px 22px #35493b30; } }
.download-button:active { transform: translateY(0); }
.hero-social { display: flex; justify-content: center; gap: 24px; width: 100%; margin-top: auto; padding-top: 40px; }
.social-card { display: flex; flex-direction: column; align-items: center; width: 172px; padding: 15px 14px 12px; background: #fffdf3b3; border: 1px solid #fffaf0cf; border-radius: 15px; box-shadow: 0 5px 20px #75553410,inset 0 0 0 1px #c5a57822; backdrop-filter: blur(12px); cursor: pointer; transition: transform .2s,background .2s; }
@media (hover: hover) and (pointer: fine) { .social-card:hover { transform: translateY(-4px); background: #fffdf3e6; } }
.social-card img { width: 102px; height: 102px; padding: 5px; object-fit: contain; background: white; border-radius: 8px; margin-bottom: 7px; }
.social-name { font-size: 13px; font-weight: 600; }
.social-icon { font-size: 18px; margin-right: 6px; color: #926233; }
.social-desc { font-size: 10px; color: #8a735a; margin-top: 1px; }
.scroll-cue { display: flex; flex-direction: column; align-items: center; gap: 1px; margin-top: 16px; font-size: 10px; letter-spacing: 3px; color: #886d4d; }
.scroll-cue i { font-size: 11px; }

/* The description and copyright share the normal document flow. */
.about-section { padding: clamp(60px,7vw,100px) 0 clamp(48px,5vw,72px); background: #fff7e9; }
.about-bg { position: absolute; inset: 0; background: linear-gradient(#fff7e9,#fff7e9e8 28%,#fff7e9f5 85%,#fff7e9),url('https://img.alicdn.com/imgextra/i4/1859470717/O1CN0151qrAY3TKFB3OTaP_!!1859470717.png') center 60% / cover; }
.section-title { margin: 0; text-align: center; font: 700 clamp(29px,3vw,42px)/1.4 'STKaiti','KaiTi',serif; letter-spacing: 7px; color: #513427; }
.highlight { color: #a75b2e; }
.section-subtitle { margin: 12px 0 28px; text-align: center; font-size: 13px; letter-spacing: 4px; color: #96724c; }
.about-content { max-width: 840px; margin: 0 auto; padding: 32px 48px; text-align: center; background: #fffdf7b8; border: 1px solid #e6d5b4; border-radius: 16px; box-shadow: 0 12px 35px #815e2910; }
.about-content p { margin: 0; font-size: 16px; line-height: 2.2; color: #6d5340; }
.highlight-text { font-weight: 600; color: #97512c; }
.quote-mark { display: none; }
.about-tag { width: fit-content; margin: 24px auto 0; padding: 7px 26px; border: 1px solid #d6b67a; border-radius: 24px; font-size: 12px; letter-spacing: 4px; color: #94703f; }
.footer-section { height: auto; min-height: 0; margin: 0; padding: 28px 0 18px; border-top: 1px solid #e9dbc3; background: #f3ecdf; }
.footer-grid { display: grid; grid-template-columns: 1fr 1.15fr 1fr; align-items: center; gap: 22px 36px; }
.footer-brand { display: flex; align-items: center; gap: 14px; }
.footer-brand .logo-img { width: 152px; height: auto; }
.brand-text { display: flex; flex-direction: column; gap: 4px; }
.brand-name { font-size: 11px; color: #6e5138; }
.brand-desc { font-size: 10px; color: #867158; }
.footer-info h4 { margin: 0 0 5px; font-size: 12px; font-weight: 500; color: #7e664b; }
.footer-info p { margin: 0; }
.footer-info .company { font-size: 13px; color: #644e39; }
.footer-icp { display: flex; flex-direction: column; align-items: flex-end; gap: 3px; text-align: right; font-size: 11px; color: #8e765c; }
.icp-number { color: #796045; }
.icp-desc i { margin-right: 6px; }
.footer-health { grid-column: 1/-1; display: flex; flex-wrap: wrap; justify-content: center; gap: 3px 20px; padding-top: 14px; border-top: 1px solid #e4d9c7; color: #86745f; font-size: 10px; letter-spacing: 1px; }
.footer-icp a { text-underline-offset: 4px; }
.footer-icp a:hover { color: var(--gold-dark); text-decoration: underline; }
.section-indicator { position: fixed; right: 22px; top: 50%; transform: translateY(-50%); z-index: 50; display: flex; flex-direction: column; gap: 15px; }
.dot { width: 10px; height: 10px; border: 1px solid #b7a283; border-radius: 50%; background: #fffbef66; cursor: pointer; transition: background .2s,box-shadow .2s; }
.dot.active { background: #b58a40; border-color: #a67b31; box-shadow: 0 0 0 4px #b58a4016; }

.follow-download { position: fixed; inset: auto 0 0; height: var(--follow-height); z-index: 70; display: flex; align-items: center; background-color: #faf1f2; background-image: repeating-radial-gradient(ellipse at 15% 60%,transparent 0 12px,#fff9 13px 14px,transparent 15px 26px),linear-gradient(90deg,#fff4e6,#f5e6ed 70%,#fff4e6); border-top: 2px solid #d9bf8a; border-bottom: 2px solid #bca16d; box-shadow: 0 -5px 25px #62492916; transform: translateY(105%); visibility: hidden; transition: transform .25s,visibility .25s; overflow: hidden; }
.follow-download.is-visible { transform: translateY(0); visibility: visible; }
.follow-inner { position: relative; width: min(100% - 80px,1400px); margin: auto; display: flex; align-items: center; justify-content: center; gap: clamp(32px,6vw,100px); z-index: 1; }
.follow-brand { flex: 0 0 245px; text-align: center; }
.follow-brand img { width: 215px; height: 72px; object-fit: contain; margin: auto; }
.follow-brand p { margin: -2px 0 0; font: 14px/1.5 'STKaiti','KaiTi',serif; letter-spacing: 3px; color: #875564; }
.follow-buttons { display: flex; gap: 22px; }
.follow-buttons .download-button { height: 58px; width: clamp(180px,15vw,220px); }
.follow-buttons .download-button small { display: none; }
.follow-decoration { position: absolute; right: 0; bottom: 0; width: 170px; height: 100%; object-fit: cover; object-position: 80% 40%; opacity: .65; mask-image: linear-gradient(90deg,transparent,#000); }
.float-wechat { position: fixed; right: 22px; bottom: 150px; z-index: 75; display: flex; flex-direction: column; align-items: center; gap: 7px; opacity: 0; visibility: hidden; transition: opacity .2s; cursor: pointer; }
.float-wechat.is-visible { opacity: 1; visibility: visible; }
.qr-wrapper { width: 72px; height: 72px; padding: 7px; border: 1px solid #d7b477; border-radius: 50%; background: #fff; box-shadow: 0 5px 18px #74532615; }
.qr-wrapper img { width: 100%; height: 100%; object-fit: contain; border-radius: 50%; }
.float-wechat .label { padding: 3px 12px; border-radius: 14px; font-size: 11px; color: #976234; background: #fff9ed; border: 1px solid #dbc194; }
.qr-tooltip { position: fixed; right: 110px; bottom: 150px; z-index: 80; padding: 16px; border: 1px solid #d8bf90; border-radius: 12px; background: #fffdf7; box-shadow: 0 8px 30px #6e4d2322; opacity: 0; visibility: hidden; transition: opacity .2s; }
.qr-tooltip.show { opacity: 1; visibility: visible; }
.qr-tooltip img { width: 148px; height: 148px; object-fit: contain; }
.qr-tooltip p { margin: 7px 0 0; text-align: center; font-size: 11px; color: #8a6c47; }
.qr-overlay { position: fixed; inset: 0; z-index: 100; display: flex; align-items: center; justify-content: center; background: #24150dc9; backdrop-filter: blur(8px); opacity: 0; visibility: hidden; transition: opacity .2s; padding: 24px; }
.qr-overlay.active { opacity: 1; visibility: visible; }
.modal-content { position: relative; max-width: 100%; padding: 30px; border-radius: 20px; border: 1px solid #e0c998; background: #fffdf6; box-shadow: 0 20px 80px #0005; text-align: center; }
.modal-content img { width: min(280px,65vw); aspect-ratio: 1; object-fit: contain; padding: 6px; background: white; }
.modal-label,.modal-sub { display: block; }
.modal-label { font-size: 17px; font-weight: 600; margin-top: 14px; }
.modal-sub { font-size: 12px; color: #9b866b; margin-top: 3px; }
.modal-close { position: absolute; top: 5px; right: 8px; width: 32px; height: 32px; border: 0; border-radius: 50%; background: transparent; color: #9a7a50; font-size: 25px; cursor: pointer; }
.close-hint { position: absolute; bottom: 30px; color: #ffedcd99; font-size: 12px; letter-spacing: 2px; }

@media (min-width: 2000px) { .hero .section-inner { width: min(100% - 100px,1500px); }.hero-logo { width: 480px; }.social-card { width: 190px; padding: 18px; }.social-card img { width: 116px; height: 116px; }.hero-social { gap: 32px; } }
@media (min-width: 769px) and (max-height: 760px) { .hero { min-height: max(600px,100svh); }.hero .section-inner { padding-top: 30px; padding-bottom: 15px; }.hero-logo { width: 320px; }.hero-slogan { margin: 12px 0 16px; }.hero-social { padding-top: 28px; }.social-card { padding: 12px; }.social-card img { width: 80px; height: 80px; }.scroll-cue { margin-top: 10px; } }
@media (max-width: 1100px) { .footer-grid { gap: 20px; }.footer-brand { flex-direction: column; align-items: flex-start; gap: 6px; }.follow-inner { width: calc(100% - 50px); gap: 25px; }.follow-brand { flex-basis: 220px; }.follow-buttons { gap: 12px; }.follow-buttons .download-button { width: 172px; }.follow-decoration { display: none; } }
@media (min-width: 1025px) and (max-width: 1100px) { .follow-buttons .download-button { gap: 8px; padding-inline: 10px; }.follow-buttons .download-button i { font-size: 21px; }.follow-buttons .download-button strong { font-size: 17px; } }
@media (max-width: 1024px) { .follow-download { display: none; }.float-wechat { bottom: 28px; }.qr-tooltip { bottom: 28px; }.hero-logo { width: 360px; }.section-indicator { right: 12px; }.download-button { width: 190px; height: 62px; } }
@media (max-width: 768px), (max-width: 1024px) and (hover: none) and (pointer: coarse) { .download-emulator { display: none; } }
@media (max-width: 768px) {
  .section-inner { width: calc(100% - 40px); }
  .hero { min-height: max(620px,100svh); }
  .hero::before { content: ''; position: absolute; inset: 0; z-index: -3; background: url('https://img.alicdn.com/imgextra/i1/1859470717/O1CN01Qi6fnoL3auF24uLA_!!1859470717.png') center / cover; filter: blur(14px); opacity: .5; }
  .hero::after { content: ''; position: absolute; inset: auto 0 0; height: 110px; background: linear-gradient(transparent,#fff7e9); pointer-events: none; }
  .hero-bg { background-image: url('https://img.alicdn.com/imgextra/i1/1859470717/O1CN01Qi6fnoL3auF24uLA_!!1859470717.png'); background-size: cover; background-position: center; }
  .hero-bg::after { background: linear-gradient(#fff5e24d,transparent 30%,transparent 72%,#fff7e9); }
  .hero .section-inner { padding-block: 28px 18px; }
  .hero-logo { width: min(62vw,300px); }
  .hero-slogan { margin: 12px 0 18px; font-size: 15px; letter-spacing: 3px; padding: 3px 12px; }
  .hero-downloads { gap: 14px; flex-wrap: nowrap; }
  .download-button { width: 170px; height: 55px; gap: 8px; padding: 8px 12px; }
  .download-button i { font-size: 21px; }.download-button strong { font-size: 18px; }.download-button small { font-size: 8px; }
  .hero-social { gap: 14px; padding-top: 44px; }.social-card { width: 126px; padding: 13px 10px 10px; border-radius: 12px; }.social-card img { width: 80px; height: 80px; }.social-name { font-size: 12px; }.social-desc { font-size: 9px; }.social-icon { font-size: 15px; margin-right: 4px; }
  .about-section { padding: 48px 0 36px; }.section-title { font-size: 29px; letter-spacing: 5px; }.section-subtitle { font-size: 11px; letter-spacing: 2px; margin: 10px 0 22px; }.about-content { padding: 25px 24px; border-radius: 14px; }.about-content p { font-size: 14px; line-height: 2; }.about-tag { margin-top: 18px; font-size: 11px; padding: 6px 20px; }
  .footer-section { padding: 22px 0 17px; }.footer-grid { grid-template-columns: 1fr; gap: 15px; text-align: center; }.footer-brand { flex-direction: row; justify-content: center; align-items: center; gap: 14px; }.footer-brand .logo-img { width: 120px; }.brand-text { text-align: left; }.brand-name { font-size: 10px; }.brand-desc { font-size: 9px; }.footer-info h4 { font-size: 11px; margin-bottom: 2px; }.footer-info .company { font-size: 12px; }.footer-icp { align-items: center; font-size: 10px; gap: 2px; }.icp-number { display: none; }.footer-health { padding-top: 12px; gap: 2px 12px; font-size: 9px; max-width: 360px; margin: auto; }
  .section-indicator { display: none; }.float-wechat { right: 12px; bottom: max(18px,env(safe-area-inset-bottom)); }.qr-wrapper { width: 54px; height: 54px; padding: 5px; }.float-wechat .label { font-size: 10px; }.qr-tooltip { right: 78px; bottom: 20px; padding: 12px; }.qr-tooltip img { width: 120px; height: 120px; }
  .footer-health { display: grid; grid-template-columns: repeat(4,minmax(0,1fr)); width: 100%; gap: 5px 10px; letter-spacing: 0; }
}
@media (max-width: 480px) {
  .section-inner { width: calc(100% - 28px); }
  .hero { min-height: max(580px,100svh); }
  .hero-bg { top: 50%; bottom: auto; height: 150vw; transform: translateY(-50%); background-size: 100% 100%; background-position: center; mask-image: linear-gradient(transparent,#000 10%,#000 85%,transparent); }
  .hero .section-inner { padding-top: max(24px,env(safe-area-inset-top)); padding-bottom: max(14px,env(safe-area-inset-bottom)); }
  .hero-logo { width: 230px; max-width: 70%; }
  .hero-slogan { font-size: 13px; letter-spacing: 2px; margin: 10px 0 15px; }
  .hero-downloads { width: min(100%,328px); gap: 10px 12px; }
  .hero-downloads .download-button { width: min(158px,calc((100% - 12px)/2)); height: 52px; padding: 7px 10px; gap: 7px; }
  .download-button strong { font-size: 16px; letter-spacing: .5px; }.download-button i { font-size: 18px; }.download-button small { font-size: 7px; letter-spacing: .8px; }
  .hero-social { gap: 10px; }.social-card { width: 104px; max-width: calc((100% - 20px)/3); padding: 10px 5px; }.social-card img { width: 64px; height: 64px; padding: 3px; }.social-name { font-size: 11px; }.social-icon { font-size: 14px; }.social-desc { font-size: 8px; }.scroll-cue { margin-top: 12px; font-size: 9px; letter-spacing: 2px; }
  .about-content { padding: 22px 19px; }.about-content p { font-size: 13px; line-height: 2.1; }.section-subtitle { letter-spacing: 1px; }.footer-info p { overflow-wrap: anywhere; }
}
@media (max-width: 360px) { .hero { min-height: max(660px,100svh); }.hero-bg { top: 55%; } }
@media (max-width: 768px) and (orientation: landscape) { .hero { min-height: 600px; }.hero-bg { background-image: url('https://img.alicdn.com/imgextra/i4/1859470717/O1CN0151qrAY3TKFB3OTaP_!!1859470717.png'); background-size: cover; }.hero-logo { width: 240px; }.hero-downloads { flex-wrap: nowrap; }.hero-social { padding-top: 40px; } }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } *,*::before,*::after { transition: none !important; animation: none !important; } }