/* /app uses the homepage A palette, landscape artwork, serif headings and pill entries. */
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body.compact-app{margin:0;background:#f2efe7;color:#153327;font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;-webkit-font-smoothing:antialiased}
.compact-app a{color:inherit;text-decoration:none}
.compact-app button{font:inherit}
.compact-app .skip-link{position:absolute;left:16px;top:-100px}
.compact-app .skip-link:focus{top:8px;z-index:10;background:#fff;padding:12px}
.compact-app::before{content:"";position:absolute;inset:0 0 auto;height:470px;z-index:-1;background:linear-gradient(90deg,#f7f2e9d9,#f7f2e94d),url('/ab-assets/assets/river-concept-portrait-20261022.webp') center 58%/cover no-repeat}
.compact-app .site-header{display:flex;align-items:center;justify-content:space-between;gap:16px;max-width:1040px;margin:auto;padding:12px 40px}
.compact-app .brand{display:flex;align-items:center;gap:10px}
.compact-app .site-header .brand>.brand-tagline{font-size:12px;white-space:nowrap;color:#153327}
.compact-app .site-header nav{display:flex;gap:24px;font-size:14px}
.compact-app .site-header nav a{white-space:nowrap}
.compact-app .site-header .brand>.bukong-wordmark{width:68px!important;height:64px!important}
.compact-product{margin:auto}
.compact-hero{max-width:1040px;margin:auto;min-height:380px;padding:24px 40px 80px}
.compact-hero h1{margin:0!important}
.compact-hero .product-identity .bukong-wordmark{width:100px!important;height:90px!important}
.compact-hero .product-identity .product-tagline{font-size:18px;color:#30483a}
.compact-intro{font-family:"Songti SC","Noto Serif CJK SC","SimSun",serif;font-size:36px;font-weight:900;letter-spacing:-.04em;line-height:1.3;margin:8px 0 46px;text-shadow:0 2px 18px #fff8}
.compact-actions{position:relative;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;max-width:630px}
.compact-actions::before{content:"点击下载 ↘";position:absolute;top:-29px;left:8px;color:#d95424;font-family:"Songti SC",serif;font-size:14px;font-style:italic;letter-spacing:.06em;transform:rotate(-5deg)}
.compact-actions a{display:flex;align-items:center;justify-content:center;gap:8px;padding:16px 8px;border:2px solid #173c2e;border-radius:999px;background:#173c2e;color:#fff;font-size:16px;font-weight:700;white-space:nowrap;min-height:56px;box-shadow:0 9px 25px #1533272b}
.compact-actions .primary{background:#ed561e;border-color:#ed561e}
.compact-actions svg{width:21px;height:21px;fill:currentColor;flex:none}
.compact-actions a:focus-visible,.compact-qr button:focus-visible{outline:3px solid #e9703d;outline-offset:4px}
.compact-feature{position:relative;isolation:isolate;display:grid;grid-template-columns:1fr 260px;align-items:center;gap:60px;max-width:1040px;margin:auto;padding:48px 40px}
.compact-feature::before{content:"";position:absolute;z-index:-1;inset:0;left:calc((min(100vw,1040px) - 100vw)/2);right:calc((min(100vw,1040px) - 100vw)/2);background:url('/ab-assets/assets/feature-landscape-20261022.webp') center top/cover no-repeat}
.compact-feature .eyebrow{font-size:13px;letter-spacing:.12em;color:#276b8c;font-weight:750}
.compact-feature h2{font-family:"Songti SC","Noto Serif CJK SC","SimSun",serif;font-size:clamp(30px,3.8vw,46px);font-weight:900;letter-spacing:-.04em;line-height:1.25;margin:12px 0 18px}
.compact-feature p{font-size:18px;line-height:1.7;max-width:26em;margin:0 0 18px;color:#405449}
.compact-feature a{display:inline-block;font-size:14px;border-bottom:1px solid #15332755;padding-bottom:4px}
.compact-feature>img{display:block;width:230px;max-width:100%;height:auto;margin:auto;border-radius:24px;box-shadow:0 25px 50px #23372936}
.compact-feature#public-map{color:#fff}
.compact-feature#public-map::before{background:linear-gradient(#102f25b0,#102f25b0),url('/ab-assets/assets/feature-landscape-20261022.webp') center bottom/auto 190% no-repeat}
.compact-feature#public-map p{color:#e5eee8}
.compact-feature#public-map .eyebrow{color:#b9e3e8}
.compact-feature#public-map a{border-color:#ffffff66}
.compact-footer{max-width:1040px;margin:auto;padding:28px 40px;font-size:12px;color:#405449}
.compact-footer .footer-links{display:flex;flex-wrap:wrap;gap:12px 20px;margin-bottom:16px}
.compact-qr{border:0;border-radius:18px;padding:38px 22px 24px;width:min(340px,calc(100% - 32px));text-align:center;color:#173025;background:#fff}
.compact-qr::backdrop{background:#0009}
.compact-qr img{display:block;width:100%;height:auto}
.compact-qr p{font-size:15px;line-height:1.5;margin:16px 0 0}
.compact-qr button{position:absolute;right:12px;top:6px;font-size:28px;border:0;background:transparent;color:inherit;cursor:pointer}
@media(max-width:600px){
 .compact-app::before{height:340px;background-position:63% center}
 .compact-app .site-header{padding:6px 18px;gap:8px}
 .compact-app .site-header .brand>.bukong-wordmark{width:58px!important;height:50px!important}
 .compact-app .site-header .brand>.brand-tagline{display:none}
 .compact-app .site-header nav{gap:18px;font-size:12px}
 .compact-hero{min-height:276px;padding:10px 18px 54px}
 .compact-hero .product-identity{gap:8px}
 .compact-hero .product-identity .bukong-wordmark{width:70px!important;height:62px!important}
 .compact-hero .product-identity .product-tagline{font-size:clamp(11px,3.1vw,16px)}
 .compact-intro{font-size:clamp(23px,6.1vw,29px);margin:10px 0 42px;white-space:nowrap}
 .compact-actions{gap:6px}
 .compact-actions a{font-size:12px;gap:4px;padding:12px 3px;min-height:48px;border-width:1px}
 .compact-actions svg{width:17px;height:17px}
 .compact-actions::before{font-size:12px;top:-25px}
 .compact-feature{grid-template-columns:1fr;gap:24px;padding:36px 22px 48px}
 .compact-feature h2{font-size:clamp(25px,7vw,32px);margin:10px 0 14px}
 .compact-feature p{font-size:15px;margin:0 0 12px}
 .compact-feature>img{width:220px}
 .compact-footer{padding:24px 18px}
}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}