:root{color-scheme:light;--ink: #292720;--muted: #706c64;--accent: #82613a;--line: #e6e1d8;--header-height: 88px;font-family:PingFang SC,Microsoft YaHei,Noto Sans SC,sans-serif;color:var(--ink);background:#fcfcfb;font-synthesis:none}*{box-sizing:border-box;letter-spacing:0}body{margin:0;min-height:100svh;display:flex;flex-direction:column}main{flex:1;padding-top:var(--header-height)}img{display:block;max-width:100%}a{color:inherit;text-decoration:none}button{font:inherit}[hidden]{display:none!important}a:focus-visible,button:focus-visible{outline:2px solid var(--accent);outline-offset:5px}.sr-only,.skip-link:not(:focus){position:absolute;width:1px;height:1px;padding:0;overflow:hidden;clip-path:inset(50%);white-space:nowrap}.skip-link:focus{position:fixed;top:8px;left:12px;padding:12px;background:#fff;z-index:30}.site-header{position:fixed;z-index:20;inset:0 0 auto;height:var(--header-height);background:#fff;border-bottom:1px solid var(--line)}.header-inner{width:min(1360px,100%);height:100%;margin:auto;padding:0 40px;display:flex;align-items:center;justify-content:space-between;gap:28px}.brand{flex:0 0 auto}.brand-logo{width:220px;height:auto}.primary-nav{display:flex;align-items:center;gap:24px}.primary-nav a{display:inline-flex;align-items:center;min-height:44px;font-size:14px;white-space:nowrap}.primary-nav a:hover{color:#8c7148}.menu-toggle{display:none}.app-intro{position:relative;isolation:isolate;display:flex;align-items:center;height:min(720px,calc(100svh - var(--header-height) - 80px));min-height:570px;padding:28px 0}.app-hero-image{position:absolute;z-index:-1;top:0;right:0;bottom:0;left:0}.app-hero-image img{width:100%;height:100%;object-fit:cover;object-position:center 35%}.app-intro__inner{width:min(1280px,100%);margin:auto;padding:0 40px}.app-intro__copy{width:min(450px,44%);text-align:center}.app-identity{display:flex;flex-direction:column;align-items:center;gap:10px;text-align:center}.app-mark{flex:0 0 auto;width:68px;height:68px;padding:2px;border:1px solid #e6e2d7;border-radius:8px;background:#fff;object-fit:contain}.app-identity h1{margin:0;font-size:34px;font-weight:600;line-height:1.3}.app-identity h1 span{margin-left:8px;font-size:18px;font-weight:500}.app-identity p{margin:5px 0 0;color:var(--muted);font-size:13px;line-height:1.6}.app-tagline{margin:20px 0 12px;font-size:26px;font-weight:500;line-height:1.5}.app-summary{margin:0;color:#665f55;font-size:15px;line-height:1.9;text-wrap:pretty}.app-access{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));align-items:start;gap:24px;width:min(352px,100%);margin:24px auto 0;text-align:center}.app-platform{min-width:0}.app-qr{width:min(152px,100%);aspect-ratio:1;min-height:0;margin-inline:auto;display:grid;place-items:center;padding:6px;border:1px solid #d7ddd5;border-radius:8px;background:#fff;box-shadow:0 4px 16px #182b200d}.app-qr canvas,.app-qr>img{display:block;width:100%;height:auto;aspect-ratio:1;image-rendering:pixelated}.app-access h3{display:flex;justify-content:center;align-items:center;gap:10px;margin:0 0 12px;font-size:16px;line-height:1.4;font-weight:600}.app-platform__label{display:flex;flex-direction:column;gap:2px;text-align:left}.app-platform__label small{color:var(--muted);font-size:11px;font-weight:400}.app-access .tailian-platform-icon--android{color:var(--accent)}.app-access__help,.app-text-link{display:inline-flex;align-items:center;gap:6px;min-height:44px;color:var(--accent);font-size:13px;line-height:1.5}.app-access__help{margin-top:0;font-size:12px;justify-content:center}.app-access__help:hover,.app-text-link:hover{text-decoration:underline;text-underline-offset:4px}.app-mobile-access{display:none}.tailian-download-button{--button-color: #8b6b40;display:inline-flex;align-items:center;justify-content:center;width:100%;min-height:56px;padding:9px 12px;gap:10px;border:1px solid transparent;border-radius:4px;background:var(--button-color);color:#fff;box-shadow:0 3px 10px #2d251a12;font-size:14px;font-weight:500;line-height:1.4;transition:background-color .18s,box-shadow .18s}.tailian-download-button--ios{--button-color: #33312c}.tailian-download-button:disabled{cursor:not-allowed}a.tailian-download-button:hover{background:#765832;box-shadow:0 4px 12px #2d251a1a}a.tailian-download-button--ios:hover{background:#24221e}.tailian-download-label{display:flex;flex-direction:column;gap:2px;text-align:left;white-space:nowrap}.tailian-download-label small{color:#f0e9dd;font-size:11px;font-weight:400}.tailian-download-button--ios .tailian-download-label small{color:#dddcd9}.tailian-platform-icon{flex:0 0 25px;width:25px;height:28px;background:currentColor;-webkit-mask:var(--platform-icon) center / contain no-repeat;mask:var(--platform-icon) center / contain no-repeat}.tailian-platform-icon--ios{--platform-icon: url(../js/vendor/fontawesome/apple.svg)}.tailian-platform-icon--android{--platform-icon: url(../js/vendor/fontawesome/android.svg)}.app-details{background:#fff;border-top:1px solid var(--line)}.app-details__inner{max-width:1120px;margin:auto;padding:32px 40px 40px}.app-details__heading{display:flex;align-items:center;justify-content:space-between;gap:16px}.app-details h2{margin:0;font-size:22px;font-weight:600;line-height:1.5}.app-topics{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:32px;margin:24px 0 0}.app-topics>div+div{border-left:1px solid var(--line);padding-left:32px}.app-topics dt{display:flex;align-items:center;gap:12px;color:var(--accent);font-size:17px;font-weight:600;line-height:1.5}.app-topics dt img{flex:0 0 24px}.app-topics dd{margin:14px 0 0;color:var(--muted);font-size:14px;line-height:1.85}.app-download-footer{display:flex;flex-wrap:wrap;justify-content:center;align-items:center;gap:8px 28px;padding:16px 24px;border-top:1px solid var(--line);color:#737c74;font-size:12px;line-height:1.7;text-align:center;background:#fff}.app-download-footer a{display:inline-flex;align-items:center;min-height:36px;color:var(--accent)}@view-transition{navigation:auto}@keyframes tailian-fade-in{0%{opacity:0}to{opacity:1}}@keyframes tailian-fade-out{0%{opacity:1}to{opacity:0}}::view-transition-old(root){animation:tailian-fade-out .18s ease-in both}::view-transition-new(root){animation:tailian-fade-in .26s ease-out both}@supports not (view-transition-name: root){body{animation:tailian-fade-in .24s ease-out}}@media(max-width:1100px){.primary-nav{gap:16px}.header-inner{padding-inline:28px;gap:20px}.brand-logo{width:200px}.app-intro__inner{padding-inline:28px}.app-intro__copy{width:44%}.app-tagline{font-size:24px}.app-access{gap:16px}.app-qr{width:min(136px,100%)}}@media(max-width:1024px){:root{--header-height: 76px}.menu-toggle{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:6px;flex:0 0 44px;width:44px;height:44px;border:1px solid var(--line);border-radius:3px;color:var(--ink);background:#fff;cursor:pointer}.menu-toggle>span:not(.sr-only){display:block;width:21px;height:1px;background:currentColor}.menu-toggle[aria-expanded=true]>span:first-child{transform:translateY(3.5px) rotate(45deg)}.menu-toggle[aria-expanded=true]>span:nth-child(2){transform:translateY(-3.5px) rotate(-45deg)}.primary-nav{display:none;position:fixed;inset:var(--header-height) 0 0;padding:20px 28px 32px;overflow-y:auto;background:#fff}.primary-nav.is-open{display:block}.primary-nav a{display:flex;min-height:58px;border-bottom:1px solid var(--line);font-size:16px}body.menu-open{position:fixed;width:100%;overflow:hidden}}@media(max-width:700px){:root{--header-height: 64px}.header-inner{padding-inline:20px}.brand-logo{width:170px}.menu-toggle{border-color:transparent}.app-intro{align-items:flex-start;height:min(680px,calc(100svh - var(--header-height) - 52px));min-height:520px;padding:20px 0 0}.app-hero-image img{object-position:center top}.app-intro__inner{padding:0 24px;margin:0 auto}.app-intro__copy{width:min(440px,100%);margin:auto;text-align:center}.app-identity{gap:10px}.app-mark{width:64px;height:64px;border-color:#e1dcd2;border-radius:8px}.app-identity h1{font:600 28px/1.2 Songti SC,SimSun,serif}.app-identity h1 span{margin-left:7px;font:500 14px/1.2 PingFang SC,Microsoft YaHei,sans-serif}.app-identity p{margin-top:5px;font-size:11px}.app-tagline{margin:18px 0 10px;font:500 22px/1.5 Songti SC,SimSun,serif}.app-summary{max-width:24em;margin-inline:auto;color:#655f55;font-size:13px;line-height:1.85;text-align:center}.app-access{display:none}.app-mobile-access{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;max-width:336px;margin:20px auto 0}.app-mobile-access .tailian-download-button{--button-color: #846339;height:54px;min-height:54px;padding:8px 12px;gap:10px;border-color:#846339;border-radius:6px;box-shadow:none;font-size:14px;white-space:nowrap;-webkit-tap-highlight-color:transparent;transition:background-color .18s ease,border-color .18s ease,transform .18s ease}.app-mobile-access .tailian-download-button--ios{--button-color: #fffdf9;border-color:#b5a38a;color:#4d4233}.app-mobile-access a.tailian-download-button--ios:hover{background:#f4efe6;border-color:#846339}.app-mobile-access a.tailian-download-button:active{transform:translateY(1px)}.app-mobile-access .tailian-download-label{gap:1px}.app-mobile-access .tailian-download-label small{font-size:10px;line-height:1.4}.app-mobile-access .tailian-download-button--ios small{color:#817463}.app-mobile-access .tailian-platform-icon{width:21px;height:24px;flex-basis:21px}.app-details__inner{padding:28px 24px 32px}.app-details__heading{align-items:center}.app-details h2{font:600 21px/1.5 Songti SC,SimSun,serif}.app-text-link{flex:0 0 auto;min-height:40px;font-size:12px;gap:3px}.app-topics{grid-template-columns:minmax(0,1fr);gap:20px;margin-top:20px}.app-topics>div+div{border:0;border-top:1px solid var(--line);padding:20px 0 0}.app-topics dt{gap:10px;font-size:15px}.app-topics dd{margin:8px 0 0 34px;font-size:13px;line-height:1.9}.app-download-footer{padding:14px 20px;gap:4px 20px}}@media(max-width:360px){.header-inner{padding-inline:16px}.brand-logo{width:164px}.app-intro{padding-top:20px}.app-intro__inner{padding-inline:20px}.app-mark{width:56px;height:56px}.app-identity{gap:8px}.app-identity h1{font-size:26px}.app-tagline{margin-top:16px;font-size:19px}.app-summary{max-width:22em;font-size:12px}.app-mobile-access{margin-top:20px;gap:10px}.app-mobile-access .tailian-download-button{padding-inline:8px;gap:8px;font-size:13px}.app-details__inner{padding-inline:20px}.app-details h2{font-size:19px}}@media(max-width:700px)and (max-height:650px)and (orientation:portrait){.app-intro{height:calc(100svh - var(--header-height) - 48px);min-height:440px;padding-top:18px}.app-tagline{margin-top:16px;margin-bottom:10px}.app-mobile-access{margin-top:18px}}@media(prefers-reduced-motion:reduce){@view-transition{navigation:none}::view-transition-old(root),::view-transition-new(root),body{animation:none}.tailian-download-button,.app-mobile-access .tailian-download-button{transition:none}.app-mobile-access a.tailian-download-button:active{transform:none}}