@charset "UTF-8";
:root{color-scheme:dark;--bg:#10141e;--surface:#191e2a;--text:#f0f3f9;--muted:#a1abbd;--border:#2b3242;--brand:#79e1cc;--shadow:0 18px 50px #0002}
:root[data-theme=light]{color-scheme:light;--bg:#f5f7fc;--surface:#fff;--text:#182337;--muted:#5c697d;--border:#dce2ec;--brand:#137964;--shadow:0 18px 50px #23406b0b}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font-family:Inter,"Segoe UI","Microsoft YaHei",sans-serif;font-size:16px;line-height:1.65}a{color:inherit;text-decoration:none}button,input{font:inherit}button,a,input{-webkit-tap-highlight-color:transparent}a:focus-visible,button:focus-visible,input:focus-visible{outline:3px solid var(--brand);outline-offset:5px}#app{max-width:1240px;margin:auto;padding:0 48px}.header{height:106px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--border)}.brand{display:flex;align-items:center;gap:13px;font-weight:750;font-size:20px;line-height:1.2}.brand-mark{display:flex;align-items:center;justify-content:center;background:var(--brand);color:var(--bg);width:43px;height:43px;border-radius:13px;font-size:30px;font-weight:850;letter-spacing:-3px;padding-right:3px}.brand-mark span{font-size:24px}.brand-sub{display:block;font-size:12px;font-weight:450;color:var(--muted);letter-spacing:3px;margin-top:5px}.header-right{display:flex;gap:28px;align-items:center}.header-note{font-size:14px;color:var(--muted)}.theme-button{background:transparent;color:var(--text);border:1px solid var(--border);border-radius:100px;padding:8px 15px;font-size:14px;cursor:pointer}.intro{display:flex;justify-content:space-between;gap:24px;padding:65px 0 49px;align-items:center}.section-label{display:flex;align-items:center;gap:10px;font-size:12px;letter-spacing:2px;color:var(--brand);margin:0 0 20px}.line{width:24px;height:2px;background:var(--brand)}h1{font-size:clamp(32px,4vw,48px);letter-spacing:-1.5px;line-height:1.35;margin:0;font-weight:750}h1>span{color:var(--brand)}.intro-description{color:var(--muted);margin:20px 0 0;line-height:1.9}.intro-aside{border-left:1px solid var(--border);padding-left:27px;font-size:14px;color:var(--muted);min-width:155px}.space-index{display:block;font-size:29px;letter-spacing:-1px;font-weight:300;color:var(--text);margin-bottom:10px}.mobile-break{display:none}.section-heading{display:flex;align-items:center;justify-content:space-between;gap:16px;margin:0 0 21px}.section-heading h2{font-size:18px;margin:0;font-weight:650}.section-heading h2 span{font-size:11px;letter-spacing:1.5px;font-weight:400;color:var(--muted);margin-left:16px}.section-count{font-size:13px;color:var(--muted)}.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}.portal-card{border:1px solid var(--border);background:var(--surface);border-radius:18px;padding:25px 25px 18px;min-width:0;position:relative;overflow:hidden;transition:transform .2s,border-color .2s,box-shadow .2s}.portal-card:before{content:"";position:absolute;top:0;left:25px;width:44px;height:2px;background:var(--accent)}.portal-card:hover{transform:translateY(-5px);border-color:var(--accent);box-shadow:var(--shadow)}.card-top{display:flex;align-items:center;justify-content:space-between}.icon-box{display:flex;width:49px;height:49px;align-items:center;justify-content:center;color:var(--accent);background:color-mix(in srgb,var(--accent) 12%,transparent);border-radius:13px}.icon-box svg{width:26px;height:26px}.card-number{font-size:13px;color:var(--muted);font-family:monospace}.card-body{padding:23px 0 20px}.eyebrow{color:var(--muted);font-size:10px;letter-spacing:1.7px;margin:0 0 7px}.card-body h2{font-size:23px;margin:0 0 10px;letter-spacing:-.5px}.description{font-size:14px;line-height:1.8;color:var(--muted);margin:0;max-width:260px;min-height:50px}.card-bottom{display:flex;justify-content:space-between;align-items:center;gap:10px;border-top:1px solid var(--border);padding-top:16px;font-size:12px;color:var(--muted)}.topic-divider{margin:0 8px;color:var(--border)}.enter{color:var(--text);white-space:nowrap}.home-note{display:flex;gap:13px;align-items:center;color:var(--muted);font-size:13px;padding:30px 0 40px}.note-symbol{color:var(--brand);font-size:19px}.note-line{flex:1;height:1px;background:var(--border);margin-left:14px}footer{border-top:1px solid var(--border);padding:23px 0 30px;display:flex;gap:16px;justify-content:space-between;font-size:12px;color:var(--muted)}.footer-tag{margin-left:18px;font-size:10px;letter-spacing:1px}.breadcrumb{display:flex;gap:14px;font-size:14px;color:var(--muted);margin-top:28px}.breadcrumb a:hover{color:var(--brand)}.sub-hero{text-align:center;padding:45px 0 40px}.large{width:68px;height:68px;margin:0 auto 24px;border-radius:20px}.large svg{width:36px;height:36px}.sub-hero h1{font-size:40px}.sub-hero .eyebrow{margin-bottom:12px}.construction-badge{display:inline-block;border:1px solid var(--border);color:var(--muted);border-radius:30px;padding:7px 17px;font-size:13px;margin-top:24px}.feature-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}.feature{padding:26px;border:1px solid var(--border);border-radius:16px;background:var(--surface)}.feature-number{font:14px monospace;color:var(--brand)}.feature h3{margin:14px 0 8px;font-size:19px}.feature p,.muted{color:var(--muted);font-size:14px;margin:0}.back-row{text-align:center;padding:35px 0 45px}.primary-link{display:inline-block;background:var(--brand);color:var(--bg);border-radius:10px;padding:11px 25px;font-weight:650;margin-bottom:16px}.countdown-panel{background:var(--surface);border:1px solid var(--border);border-radius:18px;padding:28px;margin-bottom:35px}.countdown-heading{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap}.countdown-heading h2{font-size:21px;margin:0}.countdown-heading label{font-size:14px;color:var(--muted)}input{background:var(--bg);color:var(--text);border:1px solid var(--border);border-radius:8px;padding:7px 10px;margin-left:10px;max-width:100%}#date-help{margin-top:13px}#countdown{display:flex;justify-content:center;gap:45px;padding:28px 0}.time-block{text-align:center}.time-block strong{display:block;font-size:45px;font-weight:650;line-height:1.3;font-variant-numeric:tabular-nums;color:var(--brand)}.time-block span{color:var(--muted);font-size:14px}.countdown-empty{padding:12px;font-size:20px;text-align:center}.sub-main{min-height:calc(100vh - 194px)}
@media(min-width:1450px){.intro{padding-top:75px}.portal-card{padding:29px 27px 22px}.card-body{padding-top:27px;padding-bottom:25px}}
@media(max-width:950px){#app{padding:0 30px}.card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.intro-aside{display:none}.footer-tag{display:none}.feature-grid{gap:12px}.feature{padding:20px}}
@media(max-width:600px){#app{padding:0 20px}.header{height:85px}.header-note{display:none}.theme-button{padding:8px 11px;font-size:12px}.brand{font-size:17px}.intro{padding:40px 0 32px}.section-label{font-size:10px;letter-spacing:1px}.mobile-break{display:block}h1{font-size:36px;letter-spacing:-1px}.intro-description{font-size:14px}.section-heading h2 span{display:none}.card-grid,.feature-grid{grid-template-columns:1fr;gap:15px}.portal-card{padding:23px}.description{max-width:none;min-height:0}.card-body{padding:19px 0}.card-bottom{font-size:12px}.home-note{align-items:flex-start;font-size:12px}.note-line{display:none}footer{flex-direction:column;gap:5px}.sub-hero h1{font-size:32px}.sub-hero{padding-top:35px}.countdown-panel{padding:20px}#countdown{gap:20px}.time-block strong{font-size:32px}.countdown-heading label{display:flex;align-items:center;flex-wrap:wrap}.countdown-empty{font-size:17px}}
@media(prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}.portal-card:hover{transform:none}}