:root{--world-ink:#5f4b4e;--world-pink:#d989a1;--world-cream:#fff8e9;--world-shadow:#4f6850}
body.game-mode{overflow:hidden;background:#b8d79d}
body.game-mode>.header,body.game-mode>main,body.game-mode>.footer{display:none}
body.home-mode{overflow:auto}
body.home-mode .pixel-world{display:none}
.pixel-world{position:relative;width:100%;height:100vh;height:100svh;min-height:440px;overflow:hidden;background:#a9cd8e;isolation:isolate;font-family:"PingFang SC","Microsoft YaHei",sans-serif;user-select:none;touch-action:none}
#world-canvas{display:block;width:100%;height:100%;image-rendering:pixelated;image-rendering:crisp-edges;background:#acd08e}
.world-topbar{position:absolute;z-index:4;left:22px;right:22px;top:18px;display:flex;align-items:flex-start;justify-content:space-between;pointer-events:none}
.world-title{display:flex;align-items:center;gap:10px;padding:10px 14px 10px 11px;border:3px solid #76585c;background:#fff8e9e8;color:var(--world-ink);box-shadow:0 5px 0 #6d55534a;border-radius:5px;backdrop-filter:blur(4px)}
.world-title>span{display:grid;place-items:center;width:31px;height:31px;background:#efb2c1;color:white;border:2px solid #b86f85;font:700 21px Georgia;border-radius:4px}
.world-title strong{display:block;font-size:13px;letter-spacing:1px}.world-title small{display:block;margin-top:3px;color:#b57b89;font-size:7px;letter-spacing:2px}
.world-help{display:flex;align-items:center;gap:7px;padding:9px 12px;border:2px solid #6e5755;background:#fff9e7df;color:#765e5a;border-radius:4px;box-shadow:0 4px 0 #5f504638;font-size:9px;letter-spacing:.5px}
.world-help kbd{padding:4px 6px;background:#e9adbd;color:#fff;border:1px solid #b66f83;border-radius:3px;box-shadow:inset 0 -2px 0 #a45e73;font:700 8px monospace}
.world-tip{position:absolute;z-index:4;left:50%;top:20px;transform:translateX(-50%);padding:9px 16px;border:2px solid #8c6c61;background:#fffaf0e8;color:#826761;border-radius:4px;box-shadow:0 4px 0 #6152483d;font-size:9px;letter-spacing:1px;white-space:nowrap;transition:opacity .4s}
.interaction-prompt{position:absolute;z-index:6;left:50%;bottom:27px;transform:translateX(-50%);display:flex;align-items:center;gap:22px;width:min(460px,calc(100% - 36px));padding:13px 14px 13px 18px;border:3px solid #73565c;background:#fff9edeF;color:#604a4e;border-radius:6px;box-shadow:0 7px 0 #59474a5e,0 16px 35px #42553942;backdrop-filter:blur(5px)}
.interaction-prompt[hidden]{display:none}.interaction-prompt>div{min-width:0;flex:1}.interaction-prompt span{display:block;margin-bottom:4px;color:#b37284;font-size:9px;letter-spacing:1px}.interaction-prompt strong{display:block;font-size:12px;letter-spacing:.5px}.interaction-prompt button{border:2px solid #9f6276;background:#dc8da4;color:#fff;border-radius:4px;padding:10px 15px;font-size:10px;font-weight:700;box-shadow:inset 0 -3px 0 #bd7086}
.world-signature{position:absolute;z-index:4;right:18px;bottom:14px;color:#fffbe9;font-size:8px;letter-spacing:1px;text-shadow:1px 1px #516749,-1px -1px #516749;pointer-events:none}
.mobile-controls{position:absolute;z-index:7;left:20px;bottom:22px;display:none;width:138px;height:138px;grid-template-columns:repeat(3,46px);grid-template-rows:repeat(3,46px);filter:drop-shadow(0 6px 6px #46553b55)}
.mobile-controls button{border:2px solid #775f61;background:#fff8e9d9;color:#b76f83;font-size:15px;font-weight:900;touch-action:none}.mobile-controls button.active{background:#efb3c2;color:#fff}.move-up{grid-area:1/2}.move-left{grid-area:2/1}.move-right{grid-area:2/3}.move-down{grid-area:3/2}.dpad-heart{grid-area:2/2;display:grid;place-items:center;border:2px solid #775f61;background:#efd2d5e0;color:#b96f83;font:700 20px Georgia}
.site-world-return{position:fixed;z-index:30;left:18px;bottom:18px;border:1px solid #e1bbc5;background:#fff9f3ed;color:#9e6575;border-radius:999px;padding:11px 16px;font-size:11px;letter-spacing:.4px;box-shadow:0 9px 25px #8b5d6824;backdrop-filter:blur(7px);transition:transform .2s,box-shadow .2s}.site-world-return:hover{transform:translateY(-3px);box-shadow:0 12px 28px #8b5d6833}
.world-transition{position:fixed;z-index:100;inset:0;display:grid;place-items:center;background:#f7dbe2;opacity:0;visibility:hidden;pointer-events:none;transition:opacity .32s,visibility .32s}.world-transition.active{opacity:1;visibility:visible}.world-transition span{color:#cf7f96;font:700 54px Georgia;animation:world-heart 1s ease-in-out infinite}
.love-card-modal{position:fixed;z-index:80;inset:0;display:grid;place-items:center;padding:20px;background:#493d466b;backdrop-filter:blur(4px)}.love-card-modal[hidden]{display:none}.love-card{position:relative;width:min(420px,100%);padding:38px 32px 30px;border:4px solid #7b5a60;border-radius:7px;background:linear-gradient(#fff9ed,#fff4e2);color:#634c50;text-align:center;box-shadow:0 9px 0 #493f42,0 24px 70px #3a2c315c;image-rendering:pixelated}.love-card:before{content:"";position:absolute;inset:7px;border:2px dashed #e5a7b7;pointer-events:none}.love-card-sparkles{display:block;color:#d58299;font:700 21px Georgia;letter-spacing:10px;margin-bottom:12px}.love-card>p{font-size:8px;letter-spacing:2px;color:#ba7b8c}.love-card h2{margin-top:10px;font-size:19px;letter-spacing:1px}.love-card blockquote{margin:24px 5px;font-size:14px;line-height:2;color:#8e6870}.love-card-close{position:absolute;z-index:2;right:13px;top:10px;border:0;background:transparent;color:#a26c79;font-size:24px}.love-card-confirm{position:relative;z-index:2;border:2px solid #a66779;border-radius:4px;background:#dc8da3;color:white;padding:12px 18px;font-size:10px;font-weight:700;box-shadow:inset 0 -3px #bd6f86}
@keyframes world-heart{50%{transform:scale(1.16) rotate(6deg)}}
@media(max-width:800px),(pointer:coarse){.mobile-controls{display:grid}.world-help{display:none}.world-tip{top:78px;max-width:calc(100% - 40px);overflow:hidden;text-overflow:ellipsis}.interaction-prompt{bottom:24px;margin-left:70px;width:min(390px,calc(100% - 190px))}.world-signature{display:none}}
@media(max-width:580px){.world-topbar{left:12px;right:12px;top:11px}.world-title{padding:8px 10px 8px 8px;border-width:2px}.world-title>span{width:27px;height:27px;font-size:18px}.world-title strong{font-size:11px}.world-title small{font-size:6px}.world-tip{top:66px;font-size:8px;padding:8px 11px}.mobile-controls{left:12px;bottom:14px;width:123px;height:123px;grid-template-columns:repeat(3,41px);grid-template-rows:repeat(3,41px)}.interaction-prompt{left:auto;right:12px;bottom:16px;transform:none;margin:0;width:calc(100% - 158px);min-height:78px;gap:8px;padding:10px}.interaction-prompt span{font-size:7px}.interaction-prompt strong{font-size:9px}.interaction-prompt button{padding:9px 10px;font-size:8px}.site-world-return{left:12px;bottom:12px;font-size:10px;padding:10px 13px}.love-card{padding:34px 23px 25px}.love-card h2{font-size:17px}.love-card blockquote{font-size:13px;margin-block:20px}}
@media(max-height:560px) and (pointer:coarse){.world-tip{display:none}.mobile-controls{transform:scale(.82);transform-origin:left bottom}.interaction-prompt{min-height:64px}.world-title{transform:scale(.88);transform-origin:left top}}
@media(prefers-reduced-motion:reduce){.world-transition,.site-world-return{transition:none}.world-transition span{animation:none}}