/* 无双地牢 · static landing page */
:root{color-scheme:dark;--bg:#101014;--panel:#19191e;--text:#f3f0e9;--muted:#9a979e;--red:#ec3450;--tap:#00d3c0;--line:rgba(255,255,255,.11);--max:1200px}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:100px}body{margin:0;background:var(--bg);color:var(--text);font-family:"Microsoft YaHei","PingFang SC",system-ui,sans-serif;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}button{font:inherit;color:inherit;cursor:pointer}button,a{-webkit-tap-highlight-color:transparent}button{border:0}img{display:block;max-width:100%;height:auto}p,h1,h2,h3,figure{margin:0}svg{display:block}.svg-defs{position:absolute;width:0;height:0;overflow:hidden}.icon{width:21px;height:21px;fill:none;stroke:currentColor;stroke-width:1.65;stroke-linecap:round;stroke-linejoin:round;flex-shrink:0}.wrap{width:min(var(--max),calc(100% - 96px));margin-inline:auto}.skip-link{position:fixed;z-index:100;top:-80px;left:20px;padding:12px 20px;background:var(--tap);color:#081817}.skip-link:focus{top:12px}:focus-visible{outline:2px solid var(--tap);outline-offset:5px}::selection{background:#cf2344;color:white}.button{white-space:nowrap;display:inline-flex;align-items:center;justify-content:center;gap:14px;min-height:46px;padding:0 22px;border-radius:5px;font-size:14px;font-weight:700;transition:background .2s,transform .2s,box-shadow .2s}.button:hover{transform:translateY(-2px)}.button-tap{background:var(--tap);color:#062c29;box-shadow:0 0 0 1px rgba(0,211,192,.2)}.button-tap:hover{background:#31ead7;box-shadow:0 8px 32px #00d3c018}.tap-word{font-family:Arial,sans-serif;font-weight:900;font-size:20px;font-style:italic;letter-spacing:-1.3px}.button-outline{background:#191a20a3;border:1px solid #ffffff38;color:var(--text)}.button-outline:hover{background:#2c2d34}.button-large{min-height:59px;padding-inline:27px;font-size:16px}.button-large .tap-word{font-size:24px}.eyebrow{font:600 11px/1.5 Arial,"Microsoft YaHei",sans-serif;letter-spacing:2px;color:var(--muted)}.red-line{display:inline-block;vertical-align:middle;width:28px;height:2px;background:var(--red);margin-right:10px}.status-dot{display:inline-block;width:6px;height:6px;border-radius:50%;background:var(--tap);box-shadow:0 0 12px #00d3c04d;flex-shrink:0}
.site-header{position:sticky;top:0;z-index:30;border-bottom:1px solid var(--line);background:#101014ed;backdrop-filter:blur(16px)}.header-inner{height:83px;display:flex;align-items:center;gap:40px}.brand{display:flex;align-items:center;gap:12px;white-space:nowrap}.brand img{border-radius:9px;box-shadow:0 0 0 1px #ffffff15}.brand span{font-size:19px;font-weight:800;letter-spacing:1px}.brand small{display:block;font:8px/1.8 Arial,sans-serif;letter-spacing:1.7px;color:var(--muted)}.site-nav{margin-left:auto;display:flex;gap:32px;font-size:13px}.site-nav a{transition:color .2s}.site-nav a:hover{color:var(--tap)}.site-nav a span{color:#76737b}.header-cta{font-size:12px;padding:0 17px;gap:11px;min-height:40px}.header-cta .tap-word{font-size:18px}.header-cta .icon{width:17px}.menu-toggle{display:none;background:none;width:35px;padding:7px 0}.menu-toggle span{display:block;width:24px;height:2px;background:var(--text);margin:6px 0;transition:transform .2s}
.hero{position:relative;isolation:isolate;overflow:hidden;min-height:690px;background:#101014}.hero-art{position:absolute;inset:0 0 0 24%;z-index:-3;overflow:hidden}.hero-art picture{display:block;width:100%;height:100%}.hero-art img{height:100%;width:100%;object-fit:cover;object-position:70% center;filter:saturate(.85)}.hero-art:after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,#101014 0%,#101014fc 24%,#101014f5 42%,#1010149c 55%,#1010141a 72%),linear-gradient(0deg,#101014 0%,transparent 30%,transparent 78%,#1010143b)}.hero:before{content:"";position:absolute;inset:0;z-index:-1;background:radial-gradient(ellipse at 75% 80%,#c5172b0e,transparent 50%)}.hero-grain{position:absolute;inset:0;pointer-events:none;z-index:-1;opacity:.04;background-image:url("data:image/svg+xml,%3Csvg viewBox='0 0 180 180' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.7' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Cpath fill='%23fff' filter='url(%23n)' d='M0 0h180v180H0z'/%3E%3C/svg%3E")}.hero-inner{position:relative;min-height:690px;padding-top:94px;padding-bottom:120px}.hero-copy{position:relative;max-width:580px}.hero .eyebrow{color:#bbb8bd;letter-spacing:1.9px}h1{position:relative;width:fit-content;font-family:"STKaiti","KaiTi","Kaiti SC",serif;font-size:108px;line-height:1.25;font-weight:900;letter-spacing:-4px;margin:22px 0 12px;transform:skewX(-7deg);text-shadow:0 3px 14px #0008}h1 span{color:#fff}h1 i{position:absolute;bottom:1px;left:5px;width:98%;height:8px;background:var(--red);transform:skewX(-32deg);clip-path:polygon(0 30%,100% 0,92% 100%,3% 70%);z-index:-1}.hero-slogan{font-size:27px;font-weight:700;letter-spacing:5px;margin:20px 0 17px}.hero-description{font-size:14px;line-height:1.9;color:#b0abb4}.hero-actions{display:flex;gap:12px;margin-top:30px}.platform-note{margin-top:17px;display:flex;align-items:center;gap:8px;font-size:11px;color:#a8a3ad}.art-caption{position:absolute;right:0;bottom:99px;display:flex;flex-direction:column;gap:9px;text-align:right;font:9px/1.4 Arial,sans-serif;letter-spacing:3px;color:#b5a1a4}.art-caption span:last-child{font-size:11px;letter-spacing:2px;color:#e0d4d5}.scroll-hint{position:absolute;bottom:35px;left:0;display:flex;align-items:center;gap:20px;font-size:10px;letter-spacing:3px;color:#938b98}.scroll-hint span:last-child{font:22px Arial;color:#d7d3da}.mobile-break{display:none}
.update-section{position:relative;display:flex;align-items:center;gap:35px;padding:27px 31px;background:linear-gradient(110deg,#222026,#17171d);border:1px solid #ffffff15;border-left:3px solid var(--red);border-radius:4px;margin-top:-3px}.update-label{font-size:12px;font-weight:700;white-space:nowrap}.update-label .status-dot{background:var(--red);margin-right:7px;box-shadow:0 0 12px #ec345040}.update-label small{display:block;color:#746c78;font:9px/1.5 Arial;letter-spacing:2px;margin:9px 0 0 14px}.update-copy{border-left:1px solid #ffffff15;padding-left:32px}.update-copy h2{font-size:21px;letter-spacing:2px;margin-bottom:8px}.update-copy p{font-size:12px;line-height:1.8;color:#a39aa7}.text-link{margin-left:auto;display:flex;gap:14px;align-items:center;white-space:nowrap;font-size:12px}.text-link:hover{color:var(--tap)}.text-link .icon{width:17px}.section{padding-top:101px}.section-heading{display:flex;align-items:end;justify-content:space-between;gap:30px;margin-bottom:37px}.section-heading h2{font-size:38px;letter-spacing:-1.5px;line-height:1.4;margin-top:12px}.section-heading h2 em{font-style:normal;color:#98939d}.section-intro{font-size:12px;line-height:1.9;color:#9a929f;margin-bottom:6px}.feature-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}.feature-card{background:var(--panel);border:1px solid var(--line);border-radius:5px;overflow:hidden}.feature-image{position:relative;overflow:hidden}.feature-image img{width:100%;aspect-ratio:1080/497;object-fit:cover;transition:transform .5s;filter:saturate(.83)}.feature-card:hover .feature-image img{transform:scale(1.04)}.feature-image:after{content:"";position:absolute;inset:0;background:linear-gradient(0deg,#19191e60,transparent 60%)}.feature-number{position:absolute;z-index:1;bottom:12px;left:20px;font:italic 700 36px/1 Arial;color:#ffffffd9}.feature-body{padding:26px 25px 30px}.feature-label{font-size:10px;letter-spacing:2px;color:#ed5368;margin-bottom:12px}.feature-body h3{font-size:23px;letter-spacing:.5px;margin-bottom:12px}.feature-body>p:last-child{font-size:12px;line-height:2;color:#a29aa8}
.gallery-section{overflow:hidden;padding-bottom:0}.gallery-controls{display:flex;gap:10px;align-items:center}.gallery-count{font:600 15px Arial;margin-right:16px}.gallery-count span{color:#625b68;font-size:12px;margin-left:9px}.round-button{display:flex;justify-content:center;align-items:center;width:39px;height:39px;border-radius:50%;border:1px solid #ffffff24;background:#ffffff04;transition:background .2s}.round-button:hover{background:#ffffff12}.round-button:disabled{opacity:.3;cursor:default}.round-button .icon{width:17px;height:17px}.gallery-prev .icon,.lightbox-prev .icon{transform:rotate(180deg)}.gallery-track{display:flex;gap:24px;overflow-x:auto;scroll-snap-type:x mandatory;scrollbar-width:none;padding:0 max(48px,calc((100vw - var(--max))/2));overscroll-behavior-x:contain}.gallery-track::-webkit-scrollbar{display:none}.gallery-slide{flex:0 0 min(900px,76vw);scroll-snap-align:center;scroll-snap-stop:always}.gallery-open{position:relative;display:block;width:100%;padding:0;overflow:hidden;border-radius:5px;background:#24232a;border:1px solid #ffffff1f}.gallery-open img{width:100%;aspect-ratio:1080/497;object-fit:cover}.image-expand{position:absolute;right:18px;bottom:18px;display:flex;align-items:center;justify-content:center;width:38px;height:38px;border:1px solid #ffffff40;background:#12131bb3;backdrop-filter:blur(5px);border-radius:50%;font-size:24px}.gallery-slide figcaption{display:flex;justify-content:space-between;gap:20px;padding-top:18px;font-size:12px;color:#d0c8d3}.gallery-slide figcaption span:last-child{color:#78717e;font-size:11px}.gallery-hint{font-size:10px;letter-spacing:1px;color:#6f6875;margin-top:22px}
.join-section{position:relative;isolation:isolate;display:flex;align-items:center;justify-content:space-between;gap:45px;min-height:376px;margin-top:105px;padding:53px 65px;overflow:hidden;border:1px solid #ffffff15;border-radius:5px;background:#242027}.join-art{position:absolute;inset:0;z-index:-1;background:linear-gradient(90deg,#211f27 15%,#201a23ec 48%,#23161de0),url("assets/poster.webp") center 62%/cover}.join-section:after{content:"";position:absolute;left:-70px;bottom:-170px;width:400px;height:400px;z-index:-1;border-radius:50%;background:#ef264019;filter:blur(60px)}.join-copy .eyebrow{color:#b38f98;font-size:9px}.join-copy h2{font-size:38px;line-height:1.4;letter-spacing:2px;margin:15px 0}.join-copy>p:not(.eyebrow){font-size:12px;color:#a797a3;margin-bottom:26px}.join-qr{display:flex;flex-direction:column;align-items:center;flex-shrink:0;padding:19px 19px 17px;border:1px solid #ffffff26;border-radius:5px;background:#ffffff08}.join-qr>img{background:white;border-radius:3px;margin-bottom:15px}.join-qr>span{font-size:11px}.join-qr>small{font-size:9px;color:#a298a6;margin-top:7px}.site-footer{display:grid;grid-template-columns:1fr auto;align-items:center;gap:29px;padding:47px 0 32px}.footer-brand{display:flex;align-items:center;gap:12px}.footer-brand img{border-radius:6px;filter:saturate(.8)}.footer-brand>span{font-size:14px;font-weight:600}.footer-brand small{display:block;font-size:10px;font-weight:400;color:#77707e;margin-top:6px}.footer-links{display:flex;gap:28px;font-size:11px;color:#958d9b}.footer-links a:hover{color:var(--tap)}.site-footer>p{grid-column:1/-1;font:10px/1.8 Arial,"Microsoft YaHei",sans-serif;color:#5e5864;border-top:1px solid var(--line);padding-top:20px}.site-footer>p>span{margin-left:20px}.mobile-download{display:none}
dialog{padding:0;border:0}dialog::backdrop{background:#08080ddd;backdrop-filter:blur(10px)}body.dialog-open{overflow:hidden}.dialog-close{position:absolute;right:14px;top:14px;display:flex;align-items:center;justify-content:center;width:36px;height:36px;background:#ffffff10;border-radius:50%;z-index:2}.dialog-close:hover{background:#ffffff20}.qr-dialog{background:#f6f5f1;color:#17171b;width:min(370px,calc(100% - 32px));border-radius:12px;padding:33px 28px 25px;text-align:center;box-shadow:0 24px 80px #0005}.qr-dialog .dialog-close{background:#00000008}.qr-game-icon{border-radius:12px;margin:0 auto 18px}.qr-dialog h2{font-size:21px}.qr-dialog>p{font-size:12px;color:#78777e;margin:11px 0 17px}.qr-large{margin:0 auto 19px;background:white}.qr-dialog .button{width:100%;font-size:13px}.qr-dialog>small{display:block;font-size:10px;color:#939098;margin-top:14px}.image-dialog{background:#16161c;width:min(1200px,calc(100% - 40px));max-height:calc(100dvh - 40px);border:1px solid #ffffff20;border-radius:7px;overflow:auto}.image-dialog>img{width:100%;max-height:calc(100dvh - 130px);object-fit:contain;background:#07070b}.image-dialog .dialog-close{background:#15151ddd;border:1px solid #ffffff30}.lightbox-bottom{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:16px 22px}.lightbox-bottom p{font-size:13px;color:#d6cddc;text-align:center}.lightbox-bottom .round-button{flex-shrink:0}
@media(min-width:1600px){.hero-art{inset-inline-start:30%}.hero-inner,.hero{min-height:760px}.hero-inner{padding-top:125px}}
@media(max-width:1100px){.wrap{width:calc(100% - 64px)}.header-inner{gap:24px}.site-nav{gap:21px}.hero-art{inset-inline-start:12%}.hero-inner,.hero{min-height:660px}.hero-inner{padding-top:95px}h1{font-size:92px}.hero-slogan{font-size:25px}.update-section{gap:24px;padding:23px}.update-copy{padding-left:22px}.update-copy p{max-width:390px}.feature-grid{gap:16px}.feature-body{padding:23px 20px}.feature-body h3{font-size:21px}.gallery-track{padding-inline:32px}.join-section{padding-inline:45px}}
@media(max-width:820px){.header-inner{height:72px}.site-nav{gap:17px;font-size:12px}.header-cta{display:none}.brand span{font-size:17px}.hero-art{inset:0 0 0 0}.hero-art img{object-position:70% center}.hero-art:after{background:linear-gradient(90deg,#101014f5 0%,#101014ce 25%,#10101490 46%,#10101420 80%),linear-gradient(0deg,#101014,transparent 40%)}.hero-inner,.hero{min-height:620px}.hero-inner{padding-top:85px}h1{font-size:82px}.hero .eyebrow{font-size:9px;letter-spacing:1.3px}.hero-slogan{font-size:23px}.hero-description{font-size:13px}.update-section{gap:18px;flex-wrap:wrap}.update-copy{flex:1}.update-copy p{font-size:11px}.update-section .text-link{margin-left:143px;font-size:11px}.section{padding-top:75px}.section-heading h2{font-size:31px}.section-intro{font-size:11px}.feature-body{padding:22px 17px}.feature-body h3{font-size:18px}.feature-body>p:last-child{font-size:11px}.feature-label{font-size:9px}.feature-number{font-size:29px;left:16px}.join-section{margin-top:80px;padding:40px 32px}.join-copy h2{font-size:32px}.join-qr>img{width:135px;height:135px}}
@media(max-width:600px){html{scroll-padding-top:85px}.wrap{width:calc(100% - 40px)}.header-inner{height:66px;gap:15px}.brand img{width:36px;height:36px;border-radius:7px}.brand span{font-size:16px}.brand small{font-size:7px;letter-spacing:1.1px}.menu-toggle{display:block;margin-left:auto}.site-nav{display:none;position:absolute;left:0;right:0;top:66px;padding:22px 20px;background:#18181ff5;border-bottom:1px solid var(--line);gap:26px;font-size:13px}.site-nav.open{display:flex}.menu-toggle[aria-expanded="true"] span:first-child{transform:translateY(4px) rotate(45deg)}.menu-toggle[aria-expanded="true"] span:last-child{transform:translateY(-4px) rotate(-45deg)}.hero{min-height:660px}.hero-inner{min-height:660px;padding-top:255px;padding-bottom:65px}.hero-art{inset:0 0 auto;height:425px}.hero-art img{object-position:71% 30%;filter:saturate(.85)}.hero-art:after{background:linear-gradient(180deg,#10101410 20%,#1010144d 46%,#101014ea 78%,#101014 100%),linear-gradient(90deg,#10101444,transparent 70%)}.hero-copy{max-width:100%}.hero .eyebrow{font-size:8px;letter-spacing:1.4px}.red-line{width:19px;margin-right:6px}h1{font-size:73px;letter-spacing:-4px;line-height:1.2;margin:14px 0 8px;text-shadow:0 3px 20px #0009}h1 i{height:6px}.hero-slogan{font-size:20px;letter-spacing:3px;margin:15px 0 14px}.hero-description{font-size:12px;line-height:1.9;color:#afa8b4}.hero-actions{margin-top:24px;gap:11px}.hero-actions .button-large{min-height:53px;padding-inline:20px;font-size:14px;gap:14px}.hero-actions .tap-word{font-size:21px}.hero-actions .button-outline{min-height:53px;padding:0 17px;font-size:12px;gap:9px}.hero-actions .button-outline .icon{width:18px}.platform-note{font-size:9px;margin-top:15px;gap:6px}.art-caption{display:none}.scroll-hint{bottom:22px;font-size:8px;gap:10px;letter-spacing:2px}.scroll-hint span:last-child{font-size:17px}.update-section{margin-top:0;gap:15px;padding:20px 17px;align-items:start}.update-label{font-size:10px;padding-top:4px}.update-label small{font-size:7px;margin-top:7px;letter-spacing:1px}.update-copy{padding-left:16px}.update-copy h2{font-size:18px;letter-spacing:1px}.update-copy p{font-size:10px;line-height:1.8;max-width:225px}.update-section .text-link{margin-left:114px;gap:10px;font-size:10px}.update-section .text-link .icon{width:15px}.section{padding-top:60px}.section-heading{align-items:start;gap:16px;margin-bottom:27px}.section-heading h2{font-size:29px;letter-spacing:-1px;margin-top:10px}.eyebrow{font-size:8px;letter-spacing:1.5px}.section-intro{display:none}.feature-grid{grid-template-columns:1fr;gap:20px}.feature-body{padding:24px}.feature-body h3{font-size:23px;margin-bottom:10px}.feature-body>p:last-child{font-size:12px;line-height:1.9}.feature-label{font-size:10px;margin-bottom:10px}.feature-number{font-size:36px;bottom:14px;left:24px}.gallery-section .section-heading{align-items:end}.gallery-controls{gap:7px;padding-bottom:5px}.gallery-count{display:none}.round-button{width:32px;height:32px}.round-button .icon{width:14px;height:14px}.gallery-track{padding-inline:20px;gap:13px}.gallery-slide{flex-basis:88vw}.gallery-open{border-radius:4px}.image-expand{width:28px;height:28px;right:10px;bottom:10px;font-size:18px}.gallery-slide figcaption{font-size:10px;gap:10px;flex-direction:column;padding-top:14px}.gallery-slide figcaption span:last-child{font-size:9px}.gallery-hint{font-size:8px;letter-spacing:.5px;margin-top:19px}.join-section{margin-top:60px;min-height:320px;padding:32px 28px;gap:20px}.join-copy .eyebrow{font-size:7px;letter-spacing:1px}.join-copy h2{font-size:29px;letter-spacing:1px;line-height:1.4}.join-copy>p:not(.eyebrow){font-size:11px;line-height:1.8;max-width:225px}.join-copy .button-large{min-height:53px;font-size:14px;padding-inline:21px}.join-copy .tap-word{font-size:21px}.join-qr{display:none}.join-art{background:linear-gradient(90deg,#211f27f5,#23161de0),url("assets/poster.webp") 70% center/cover}.site-footer{padding:32px 0 calc(110px + env(safe-area-inset-bottom));gap:24px}.footer-brand>span{font-size:12px}.footer-brand small{font-size:8px}.footer-brand img{width:32px;height:32px}.footer-links{flex-direction:column;gap:11px;font-size:9px}.site-footer>p{font-size:8px;line-height:2;padding-top:18px}.site-footer>p>span{margin-left:12px}.mobile-download{position:fixed;z-index:35;bottom:0;left:0;right:0;display:flex;align-items:center;justify-content:space-between;gap:12px;padding:12px 16px calc(12px + env(safe-area-inset-bottom));border-top:1px solid #ffffff20;background:#19191ff5;backdrop-filter:blur(15px);box-shadow:0 -10px 35px #0002}.mobile-download>div{display:flex;align-items:center;gap:9px;min-width:0}.mobile-download img{border-radius:9px;width:43px;height:43px}.mobile-download>div>span{font-size:13px;font-weight:700;white-space:nowrap}.mobile-download small{display:block;font-size:8px;color:#928c9c;margin-top:5px;font-weight:400}.mobile-download .button{min-height:43px;padding-inline:13px;gap:9px;font-size:11px;flex-shrink:0}.mobile-download .tap-word{font-size:18px}.mobile-download .icon{width:16px}.image-dialog{width:calc(100% - 20px)}.lightbox-bottom{padding:14px 13px;gap:10px}.lightbox-bottom p{font-size:11px}.image-dialog .dialog-close{right:8px;top:8px;width:30px;height:30px}}
@media(max-width:360px){.wrap{width:calc(100% - 32px)}h1{font-size:64px}.hero-actions .button-large{padding-inline:17px;gap:10px}.hero-actions .button-outline{padding-inline:13px}.mobile-download{padding-inline:12px}.mobile-download>div>span{font-size:12px}.mobile-download .button{padding-inline:10px;gap:7px}.mobile-download small{font-size:7px}.update-label{font-size:9px}.update-copy{padding-left:12px}.update-section{gap:12px;padding-inline:14px}.update-section .text-link{margin-left:101px}.section-heading h2{font-size:26px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{animation:none!important;transition:none!important}.button:hover{transform:none}}

@media(max-width:600px){.hero-actions .qr-trigger{display:none}.hero-actions .button-large{min-width:230px;flex-shrink:0}}