/* 全局主题；没有远程字体、组件库或 CDN。 */
:root{color-scheme:dark;--ink:#f2f9ff;--muted:#c1d9e6;--cyan:#8be8f1;--line:rgba(179,226,244,.26);--bg:#0a2539;--pointer-x:0px;--pointer-y:0px;font-family:"Segoe UI","Microsoft YaHei","PingFang SC",sans-serif;font-synthesis:none}
*{box-sizing:border-box}html{background:var(--bg)}body{margin:0;color:var(--ink)}a{color:inherit;text-decoration:none}button{font:inherit}button,a{-webkit-tap-highlight-color:transparent}button:focus-visible,a:focus-visible{outline:2px solid var(--cyan);outline-offset:6px}button{cursor:pointer}[hidden]{display:none!important}::selection{background:#93eaf4;color:#102c40}
.skip-link{position:fixed;z-index:20;top:12px;left:12px;padding:12px 18px;background:var(--ink);color:var(--bg);transform:translateY(-200%)}.skip-link:focus{transform:translateY(0)}
.site-shell{position:relative;isolation:isolate;display:flex;flex-direction:column;min-height:760px;min-height:max(760px,100svh);overflow:hidden;background:#0a2539}.scenery{position:absolute;inset:0;z-index:-2;overflow:hidden;pointer-events:none}.city-drift{position:absolute;inset:-2.5%;animation:city-drift 32s ease-in-out infinite alternate}.city{width:100%;height:100%;object-fit:cover;object-position:center;transform:translate(calc(var(--pointer-x) * -.35),calc(var(--pointer-y) * -.35)) scale(1.025);transition:transform 1.6s ease-out}.atmosphere{position:absolute;inset:0;background:linear-gradient(180deg,rgba(7,30,49,.67),rgba(7,30,49,.14) 24%,rgba(6,28,46,.25) 69%,rgba(4,23,37,.93)),linear-gradient(90deg,rgba(8,32,52,.13) 20%,rgba(8,31,48,.67) 53%,rgba(8,31,48,.48) 76%,rgba(8,31,48,.21))}
.blueprint-grid{position:absolute;inset:0;background-image:linear-gradient(rgba(180,231,251,.055) 1px,transparent 1px),linear-gradient(90deg,rgba(180,231,251,.055) 1px,transparent 1px);background-size:72px 72px;mask-image:linear-gradient(140deg,#000,transparent 46%,#000);opacity:.7}.blueprint-lines{position:absolute;width:100%;height:100%;color:#a9ebfa;opacity:.36}.trace{stroke:#cbfaff;stroke-dasharray:80 600;stroke-dashoffset:680;animation:trace 15s linear infinite;stroke-width:2}
.site-header{position:relative;z-index:4;display:flex;align-items:center;justify-content:space-between;margin:0 4.5%;padding:30px 0 25px;border-bottom:1px solid var(--line);gap:24px}.brand{display:inline-flex;align-items:center;gap:14px}.brand-mark{width:32px;height:36px;color:#d5f4ff}.brand>span{font-size:25px;font-weight:650;letter-spacing:.23em;line-height:1}.header-status{display:flex;align-items:center;gap:10px;font-size:13px;letter-spacing:.16em;color:#e0eff5}.status-light{width:5px;height:5px;box-shadow:0 0 10px #8be8f1;background:var(--cyan);border-radius:50%;animation:breathe-light 4s ease-in-out infinite}
.hero{position:relative;flex:1;display:flex;align-items:center;min-height:590px;outline:none}.hero-copy{position:relative;z-index:2;width:530px;margin-left:49%;padding:65px 36px 88px 0;animation-delay:.18s}.eyebrow{display:flex;align-items:center;gap:13px;color:#d0e7f0;font:500 12px/1.5 "Consolas",monospace;letter-spacing:.18em;white-space:nowrap;margin-bottom:40px}.tiny-cross{font-size:21px;color:var(--cyan);line-height:1}.eyebrow-line{display:block;width:68px;height:1px;background:var(--line)}.construction-label{display:inline-flex;align-items:center;gap:9px;font:500 12px/1.4 "Consolas",monospace;letter-spacing:.15em;color:var(--cyan);margin-bottom:12px}.construction-label svg{width:19px;height:19px}.hero-copy h1{font-size:clamp(76px,7.55vw,116px);font-weight:650;letter-spacing:.055em;line-height:1.2;white-space:nowrap;margin:0 0 22px;text-shadow:0 4px 35px rgba(3,30,48,.2)}.title-dot{color:var(--cyan);font-family:Arial,sans-serif;font-weight:400;margin-left:3px}.description{font-size:19px;letter-spacing:.17em;line-height:1.8;margin:0;color:#e2eff7}.work-status{margin-top:52px;max-width:355px}.work-status-text{display:flex;justify-content:space-between;align-items:center;gap:16px;font-size:13px;letter-spacing:.1em;color:#cce2ec}.working-dots{display:flex;gap:5px}.working-dots i{width:3px;height:3px;border-radius:50%;background:#b2f2fc;animation:breathe-light 2.5s ease-in-out infinite}.working-dots i:nth-child(2){animation-delay:.4s}.working-dots i:nth-child(3){animation-delay:.8s}.activity-track{height:3px;margin-top:15px;overflow:hidden;background:rgba(184,227,243,.18)}.activity-track span{display:block;height:100%;width:35%;background:linear-gradient(90deg,transparent,#a5f4ff,transparent);animation:activity 5.5s ease-in-out infinite}.coming-soon{display:block;margin-top:13px;font:400 12px/1.5 "Consolas",monospace;letter-spacing:.27em;color:#bad5e3}
.character-position{position:absolute;z-index:1;bottom:-35px;left:2.3%;width:44%;height:calc(100% + 26px);max-height:850px;pointer-events:none;animation:character-enter 1.5s ease-out both}.character-parallax{height:100%;transform:translate(var(--pointer-x),var(--pointer-y));transition:transform 1.6s ease-out}.character{display:block;width:100%;height:100%;object-fit:contain;object-position:center bottom;transform-origin:50% 90%;animation:character-breathe 7s ease-in-out infinite;filter:drop-shadow(12px 22px 24px rgba(2,24,42,.25))}.scene-caption{position:absolute;z-index:2;bottom:25px;left:5%;display:flex;gap:13px;align-items:center;font:400 12px/1.7 "Consolas",monospace;letter-spacing:.12em;color:#e2f2fa;text-shadow:0 2px 8px #071f32}.scene-caption b{font-weight:400;font-size:12px;letter-spacing:.19em;color:#c4dce8}.caption-line{width:2px;height:30px;background:#a2e6f6}
.site-footer{position:relative;z-index:4;display:flex;align-items:center;justify-content:space-between;gap:20px;margin:0 4.5%;padding:22px 0 26px;border-top:1px solid var(--line);font-size:12px;line-height:1.8;color:#bad1de;animation-delay:.4s}.footer-left,.footer-right{display:flex;flex-wrap:wrap;align-items:center;gap:12px 22px}.copyright{letter-spacing:.06em}.site-footer a{transition:color .2s}.site-footer a:hover{color:white}#social-links{display:flex;align-items:center;gap:20px;font-size:14px}.motion-toggle{display:flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:5px 0 5px 12px;border:0;background:transparent;color:#c6dfe9;font-size:12px;letter-spacing:.08em}.motion-toggle svg{width:18px;height:18px}.motion-toggle:hover{color:#fff}.motion-toggle:disabled{cursor:default;opacity:.7}.edge-mark{position:absolute;bottom:0;left:4.5%;width:86px;height:3px;background:var(--cyan)}
.particles{position:absolute;inset:0}.particles i{position:absolute;display:block;width:3px;height:3px;background:#b7f3ff;border-radius:50%;box-shadow:0 0 8px rgba(154,234,255,.6);animation:particle 15s linear infinite;opacity:0;left:12%;top:72%}.particles i:nth-child(2){left:32%;top:43%;animation-delay:-2s;animation-duration:19s}.particles i:nth-child(3){left:47%;top:77%;animation-delay:-8s}.particles i:nth-child(4){left:66%;top:82%;animation-delay:-11s;animation-duration:23s}.particles i:nth-child(5){left:82%;top:53%;animation-delay:-6s}.particles i:nth-child(6){left:91%;top:76%;animation-delay:-13s;animation-duration:22s}.particles i:nth-child(7){left:55%;top:37%;animation-delay:-7s;width:2px;height:2px}.particles i:nth-child(8){left:22%;top:86%;animation-delay:-3s}.particles i:nth-child(9){left:73%;top:42%;animation-delay:-9s;width:2px;height:2px}.particles i:nth-child(10){left:39%;top:59%;animation-delay:-5s;animation-duration:20s}
.entrance{animation:enter 1.2s ease-out both}.motion-paused *,.page-hidden *{animation-play-state:paused!important}.motion-paused .entrance,.page-hidden .entrance,.motion-paused .character-position,.page-hidden .character-position{animation:none;opacity:1}.motion-paused .character-parallax,.motion-paused .city{transform:none;transition:none}
@keyframes enter{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:translateY(0)}}@keyframes character-enter{from{opacity:0}to{opacity:1}}@keyframes character-breathe{0%,100%{transform:translateY(0) rotate(-.25deg) scale(1)}50%{transform:translateY(-7px) rotate(.25deg) scale(1.008)}}@keyframes city-drift{from{transform:translateX(-.35%) scale(1.01)}to{transform:translateX(.35%) scale(1.025)}}@keyframes trace{to{stroke-dashoffset:-680}}@keyframes activity{0%{transform:translateX(-110%)}100%{transform:translateX(400%)}}@keyframes breathe-light{0%,100%{opacity:.4}50%{opacity:1}}@keyframes particle{0%{transform:translate(0,25px);opacity:0}25%{opacity:.65}75%{opacity:.35}100%{transform:translate(26px,-85px);opacity:0}}
@media(min-width:1700px){.hero-copy{width:640px}.hero-copy h1{font-size:128px}.description{font-size:21px}.work-status{max-width:390px}.site-header{padding-top:36px;padding-bottom:30px}.character-position{left:6%;width:39%;max-height:1050px}}
@media(max-width:1050px) and (min-width:761px){.hero-copy{margin-left:46%;width:52%;padding-right:24px}.hero-copy h1{font-size:80px}.eyebrow{font-size:12px;letter-spacing:.09em;gap:9px}.eyebrow-line{width:25px}.character-position{left:-8%;width:57%}.description{font-size:17px}}
@media(max-width:760px){.site-shell{min-height:max(900px,100svh)}.site-header{margin:0 6%;padding:23px 0 20px;gap:16px}.brand{gap:9px}.brand-mark{width:24px;height:28px}.brand>span{font-size:19px;letter-spacing:.16em}.header-status{font-size:12px;letter-spacing:.05em;gap:7px}.hero{display:block;min-height:735px}.hero-copy{width:100%;margin:0;padding:47px 7% 0;text-align:center}.eyebrow{justify-content:center;font-size:12px;letter-spacing:.11em;margin-bottom:24px;gap:9px}.eyebrow-line{width:27px}.construction-label{font-size:12px;letter-spacing:.09em;gap:7px;margin-bottom:10px}.construction-label svg{width:17px;height:17px}.hero-copy h1{font-size:clamp(66px,15.8vw,92px);letter-spacing:.03em;margin-bottom:13px}.description{font-size:16px;letter-spacing:.09em}.work-status{width:265px;max-width:100%;margin:26px auto 0}.work-status-text{font-size:12px;letter-spacing:.04em}.activity-track{margin-top:12px}.coming-soon{font-size:12px;margin-top:10px}.character-position{left:-10%;bottom:-40px;width:80%;height:440px;max-height:none;z-index:1}.scene-caption{left:auto;right:6%;bottom:37px;font-size:12px;gap:9px}.scene-caption b{display:block;max-width:105px;font-size:12px;letter-spacing:.08em}.caption-line{height:36px}.city{object-position:67% center}.atmosphere{background:linear-gradient(180deg,rgba(6,27,43,.72) 0%,rgba(6,27,43,.7) 35%,rgba(6,27,43,.22) 66%,rgba(6,27,43,.91) 97%)}.blueprint-grid{background-size:48px 48px}.site-footer{margin:0 6%;gap:5px 14px;padding:12px 0 18px;align-items:center}.footer-left{flex:1;gap:6px 14px}.footer-right{justify-content:flex-end;gap:6px 12px}.copyright{font-size:12px}.motion-toggle{font-size:12px;padding:0}.motion-toggle svg{width:16px}.edge-mark{left:6%}#social-links{font-size:13px;gap:12px}}
@media(max-width:370px){.site-header{margin:0 5%;gap:8px}.brand>span{font-size:17px}.header-status{letter-spacing:0;font-size:12px}.hero-copy{padding-left:5%;padding-right:5%}.hero-copy h1{font-size:66px}.eyebrow{letter-spacing:.04em}.scene-caption{right:5%}.character-position{left:-15%;width:86%}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}.character-parallax,.city{transform:none!important}.particles{display:none}.activity-track span{width:100%;opacity:.4}.entrance,.character-position{opacity:1}}