:root{color-scheme:dark;--ink:#101310;--paper:#eeeae0;--muted:#b0b2a7;--gold:#c1aa7e;--line:#ffffff26;--split:50%;font-family:"Microsoft YaHei","PingFang SC",sans-serif;color:var(--paper);background:var(--ink)}
*{box-sizing:border-box}html{scroll-behavior:smooth;scrollbar-color:#777765 var(--ink)}body{margin:0}a{color:inherit;text-decoration:none}button,input{font:inherit}button,a,input{-webkit-tap-highlight-color:transparent}button{cursor:pointer}svg{width:22px;height:22px;fill:none;stroke:currentColor;stroke-width:1.3;stroke-linecap:round;stroke-linejoin:round}::selection{background:#c1aa7e;color:#101310}:focus-visible{outline:2px solid var(--gold);outline-offset:6px}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap}.skip{position:fixed;top:-100px;left:20px;padding:12px 20px;background:var(--paper);color:var(--ink);z-index:10}.skip:focus{top:20px}
.hero{position:relative;min-height:760px;height:100svh;max-height:1100px;isolation:isolate;overflow:hidden}.hero-art{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:65% center;z-index:-3}.hero-shade{position:absolute;inset:0;z-index:-2;background:linear-gradient(90deg,rgba(10,16,13,.96) 0%,rgba(10,16,13,.88) 22%,rgba(10,16,13,.47) 49%,rgba(10,16,13,.06) 76%),linear-gradient(0deg,#101310 0%,transparent 29%,rgba(8,12,10,.25) 100%)}.site-header{height:100px;margin:0 5.6%;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid #ffffff18}.brand{font-family:Georgia,serif;font-size:31px;font-weight:bold;font-style:italic;letter-spacing:-1.5px;display:flex;align-items:center;gap:14px}.brand span{font-family:"Microsoft YaHei",sans-serif;font-size:12px;letter-spacing:3px;font-weight:400;font-style:normal;border-left:1px solid #eeeae059;padding-left:15px}.nav-link{display:flex;align-items:center;gap:22px;font-size:13px;letter-spacing:2px}.nav-link:hover{color:var(--gold)}.hero-content{position:relative;width:min(590px,87%);margin-left:8.3%;padding-top:clamp(80px,12vh,160px)}.game-logo{width:clamp(260px,28vw,405px);height:auto;display:block;max-height:165px;object-fit:contain;object-position:left center;margin-left:-5px;margin-bottom:36px}h1{margin:0;font-weight:400}.tool-title{font-size:clamp(22px,2.25vw,34px);letter-spacing:3px;display:block;line-height:1.5}.launch{display:block;margin-top:15px;font-family:"Songti SC","SimSun",serif;font-weight:400;letter-spacing:.2em;font-size:clamp(44px,5vw,70px);line-height:1.35}.hero-copy{font-size:15px;letter-spacing:4px;color:#c5c7ba;margin:24px 0 37px}.hero-actions{display:flex;align-items:center;gap:28px}.primary-link{display:flex;align-items:center;gap:38px;padding:16px 22px;background:#c1aa7e;color:#111912;font-size:14px;letter-spacing:2px;border:1px solid #dfccaa;transition:background .2s}.primary-link:hover{background:#deceae}.primary-link svg{width:18px;height:18px}.free{font-size:12px;letter-spacing:2px;color:#d6d6c9}.hero-bottom{position:absolute;bottom:30px;left:5.6%;right:5.6%;display:flex;justify-content:space-between;align-items:center}.hero-bottom p{display:flex;align-items:center;gap:17px;font-size:11px;letter-spacing:1px;color:var(--muted)}.hero-bottom p>span:first-child{margin-left:13px;color:#d2d3c9}.hero-bottom p>span:last-child{color:#d2d3c9}.hero-bottom svg{width:15px}.scroll-link{display:grid;place-items:center;width:44px;height:44px}.scroll-link svg{width:24px}
.comparison{max-width:1600px;margin:auto;padding:80px 7% 54px;scroll-margin-top:24px}.section-heading{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;margin-bottom:28px}h2{font-family:"Songti SC","SimSun",serif;font-size:clamp(27px,3vw,42px);font-weight:400;letter-spacing:3px;line-height:1.5;margin:0}.section-heading p{margin:11px 0 0;font-size:13px;letter-spacing:2px;color:var(--muted)}.view-controls{display:flex;flex-shrink:0;border-bottom:1px solid #ffffff30;gap:4px}.view-controls button{color:#b7baae;border:0;background:transparent;padding:12px 19px;font-size:12px;letter-spacing:1px;border-bottom:2px solid transparent;margin-bottom:-1px;transition:color .2s,border-color .2s}.view-controls button:hover{color:var(--paper)}.view-controls button[aria-pressed=true]{color:#e4d4b5;border-bottom-color:var(--gold)}.compare-frame{position:relative;aspect-ratio:16/9;overflow:hidden;background:#202820;border:1px solid #ffffff30;isolation:isolate;touch-action:pan-y}.compare-image{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;user-select:none}.image-off{clip-path:inset(0 calc(100% - var(--split)) 0 0)}.image-label{position:absolute;top:22px;padding:9px 13px;background:#0b100dd9;color:#d0d3c6;letter-spacing:1px;font-size:10px;pointer-events:none}.image-label b{color:#fff;font-size:12px;font-weight:400;margin-left:12px}.label-off{left:22px}.label-on{right:22px}.label-on b{color:#e2cf9e}.divider{position:absolute;top:0;bottom:0;width:1px;background:#f3ead6;left:var(--split);pointer-events:none;filter:drop-shadow(1px 0 3px #0008)}.handle{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);width:48px;height:48px;border:1px solid #e3d9bf;border-radius:50%;background:#18211de6;display:grid;place-items:center}.handle svg{width:32px;height:24px}.compare-range{position:absolute;inset:0;width:100%;height:100%;margin:0;opacity:0;cursor:ew-resize;touch-action:pan-y}.compare-frame:focus-within{outline:2px solid var(--gold);outline-offset:5px}.drag-hint{position:absolute;bottom:23px;left:50%;transform:translateX(-50%);background:#0b100dc9;padding:9px 16px;font-size:11px;letter-spacing:2px;pointer-events:none;white-space:nowrap}.compare-frame[data-mode=off] .label-on,.compare-frame[data-mode=on] .label-off{visibility:hidden}.compare-frame:not([data-mode=split]) .divider,.compare-frame:not([data-mode=split]) .drag-hint{visibility:hidden}.image-error{position:absolute;inset:0;background:var(--ink);padding:10%;align-content:center;text-align:center;font-size:14px;line-height:2;z-index:5}.comparison-caption{display:flex;justify-content:space-between;gap:20px;margin-top:18px;font-size:11px;color:#c0c2b5;letter-spacing:1px}.comparison-caption span:last-child{color:#a9ad9f}.source-note{margin:17px 0 0;color:#a9ad9f;font-size:11px;line-height:1.9;max-width:85ch}footer{margin:0 5.6%;padding:28px 0 30px;border-top:1px solid var(--line);display:flex;align-items:center;gap:30px;color:#a9ad9f;font-size:10px;line-height:1.8}.footer-brand{font-family:Georgia,serif;font-weight:700;font-style:italic;font-size:25px;letter-spacing:-1px;color:#d2d3c9}footer p{margin:3px 0}footer>a{margin-left:auto;padding:12px}footer>a:hover{color:var(--paper)}
@media(min-width:1600px){.hero-content{padding-top:13vh}.hero-art{object-position:center 38%}}
@media(max-width:760px){.hero{height:100svh;min-height:720px;max-height:1000px}.hero-art{object-position:59% center}.hero-shade{background:linear-gradient(0deg,#101310 0%,#101310a6 42%,#10131020 76%),linear-gradient(90deg,#0a100dc9 0%,#0a100d55 70%,#0a100d22)}.site-header{height:76px;margin:0 6%}.brand{font-size:28px}.brand span{font-size:10px}.nav-link{font-size:11px;gap:9px;letter-spacing:1px}.hero-content{margin-left:7%;padding-top:clamp(100px,20vh,190px);width:86%}.game-logo{width:270px;margin-bottom:26px}.tool-title{font-size:21px;letter-spacing:1px}.launch{font-size:48px;letter-spacing:8px;margin-top:10px}.hero-copy{font-size:13px;margin:20px 0 28px;letter-spacing:3px}.hero-actions{gap:20px}.primary-link{padding:14px 17px;font-size:12px;gap:22px}.free{font-size:10px;letter-spacing:1px}.hero-bottom{bottom:19px;left:7%;right:5%}.hero-bottom p{gap:8px;font-size:9px;letter-spacing:0}.hero-bottom p>span:first-child{margin-left:2px}.hero-bottom svg{width:10px}.scroll-link{width:32px}.scroll-link svg{width:20px}.comparison{padding:48px 6% 36px;scroll-margin-top:12px}.section-heading{display:block;margin-bottom:20px}h2{font-size:27px;letter-spacing:1px}.section-heading p{font-size:11px;margin-top:8px;letter-spacing:1px}.view-controls{margin-top:21px;width:max-content}.view-controls button{padding:11px 22px}.compare-frame{aspect-ratio:4/3}.compare-image{object-position:center}.image-label{top:10px;padding:7px 8px;font-size:8px;letter-spacing:0}.image-label b{font-size:10px;margin-left:6px}.label-off{left:10px}.label-on{right:10px}.handle{width:40px;height:40px}.drag-hint{font-size:9px;bottom:12px;padding:7px 10px;letter-spacing:1px}.comparison-caption{font-size:10px;line-height:1.7;margin-top:12px;display:block}.comparison-caption span:last-child{display:none}.source-note{font-size:10px;margin-top:10px;line-height:1.9}footer{margin:0 6%;padding:23px 0;align-items:flex-start;gap:17px}footer div{flex:1}footer p{font-size:9px}.footer-brand{font-size:22px}footer>a{padding:2px}footer svg{width:18px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}
.hero-art{object-position:70% center}.hero-shade{background:linear-gradient(90deg,rgba(10,16,13,.62) 0%,rgba(10,16,13,.45) 28%,rgba(10,16,13,.1) 53%,transparent 78%),linear-gradient(0deg,#101310 0%,transparent 30%,rgba(8,12,10,.12) 100%)}
@media(max-width:760px){.hero{min-height:830px}.hero-art{height:73%;object-position:78% top}.hero-shade{background:linear-gradient(0deg,#101310 8%,#101310f2 28%,#101310ba 46%,#10131005 72%),linear-gradient(90deg,#0a100d42,transparent)}.hero-content{padding-top:clamp(230px,30svh,290px)}.game-logo{width:250px;margin-bottom:20px}.hero-copy{margin:17px 0 24px}.launch{font-size:44px}}
.hero-actions{margin-top:38px}.image-label{font-size:12px}.label-on{color:#e2cf9e}.comparison{padding-top:60px}.section-heading{margin-bottom:25px}footer{padding-top:22px;padding-bottom:24px}
@media(max-width:760px){.hero{min-height:770px}.hero-actions{margin-top:27px;gap:17px}.primary-link{gap:16px;padding:14px}.comparison{padding-top:38px}.image-label{font-size:10px}.source-note{margin-top:16px}}
.site-header{height:128px;border-bottom:0}.brand-lockup{display:flex;align-items:center;gap:25px;width:max-content;max-width:100%}.biubiu-logo{display:block;width:144px;height:auto}.partner-logo{display:block;width:176px;height:75px;object-fit:contain}.brand-divider{display:block;width:1px;height:42px;background:#d5d9d377;flex-shrink:0}.hero-content{padding-top:clamp(140px,23svh,250px)}.tool-title{font-size:clamp(24px,2.6vw,38px)}
@media(max-width:760px){.site-header{height:102px}.brand-lockup{gap:20px}.biubiu-logo{width:112px}.partner-logo{width:140px;height:60px}.brand-divider{height:34px}.hero-content{padding-top:clamp(285px,39svh,350px)}.tool-title{font-size:21px;letter-spacing:1px}}
@media(max-width:350px){.brand-lockup{gap:15px}.biubiu-logo{width:100px}.partner-logo{width:126px}}
.tool-title{font-size:clamp(34px,3.7vw,52px);line-height:1.35;font-weight:500;letter-spacing:1px}.launch-status{display:flex;align-items:center;gap:21px;margin:23px 0 0;color:#d8cfbb;font-size:24px;font-weight:400;line-height:1.5;letter-spacing:3px}.status-divider{width:1px;height:19px;background:#d8cfbb59}.hero-actions{margin-top:38px}
.primary-link{position:relative;isolation:isolate;min-height:58px;padding:18px 26px;gap:38px;border:1px solid #cfb783;background:linear-gradient(180deg,#c8b286 0%,#b39a6e 48%,#a78d60 100%);color:#171c15;font-size:15px;font-weight:500;letter-spacing:1.5px;box-shadow:inset 0 1px 0 #fff4,0 8px 24px #0003;transition:background .2s,box-shadow .2s,transform .2s}.primary-link::before{content:"";position:absolute;inset:4px;border:1px solid #58482e57;pointer-events:none}.primary-link svg{width:22px;height:22px;transition:transform .2s}.primary-link:hover{background:linear-gradient(180deg,#deccaa,#c8ae7d);box-shadow:inset 0 1px 0 #fff6,0 10px 26px #0004}.primary-link:hover svg{transform:translateX(3px)}.primary-link:active{transform:translateY(1px);box-shadow:inset 0 2px 4px #5f482836}.section-heading{display:block}.section-heading .comparison-benefit{margin:12px 0 0;color:#c1c4b7;font-size:15px;line-height:1.8;letter-spacing:1px}
@media(max-width:760px){.tool-title{font-size:clamp(24px,7vw,30px);letter-spacing:.3px}.launch-status{font-size:19px;letter-spacing:2px;gap:17px;margin-top:18px}.status-divider{height:15px}.hero-actions{margin-top:28px}.primary-link{min-height:54px;padding:16px 22px;font-size:13px;gap:30px}.primary-link svg{width:20px;height:20px}.section-heading .comparison-benefit{font-size:12px;letter-spacing:.5px;margin-top:10px}}