:root{color-scheme:dark;--gate-bg: #081210;--gate-ink: #f0f6ef;--gate-muted: #b4c8bf;--gate-accent: #b9e4d0;--gate-line: #b9e4d038}*{box-sizing:border-box}body.archive-gate{margin:0;min-height:100svh;color:var(--gate-ink);background:radial-gradient(ellipse at 72% 20%,#29493850,transparent 48%),var(--gate-bg);font-family:FangSong,STFangsong,SimSun,serif}a{color:inherit;text-decoration:none}.gate-header{display:flex;align-items:center;justify-content:space-between;gap:1rem;padding:1.25rem clamp(1rem,4vw,4rem);border-bottom:1px solid var(--gate-line)}.gate-brand{display:flex;align-items:center;gap:.75rem;font:700 .7rem/1.4 Consolas,monospace}.gate-brand b{display:grid;place-items:center;width:38px;height:38px;border:1px solid var(--gate-accent);border-radius:50%;color:var(--gate-accent);font-size:.6rem}.gate-return{color:var(--gate-muted);font:600 .7rem Consolas,monospace}.gate-return:hover{color:var(--gate-ink)}.gate-main{display:grid;grid-template-columns:minmax(0,1fr) 140px;align-items:center;gap:4rem;width:min(900px,calc(100% - 3rem));margin:0 auto;padding:clamp(4rem,12vh,8rem) 0 4rem}.gate-label{margin:0 0 1rem;color:var(--gate-accent);font:700 .7rem Consolas,monospace;letter-spacing:.12em}h1{margin:0 0 1.5rem;font:700 clamp(2.6rem,5vw,4rem)/1.2 STXingkai,KaiTi,STKaiti,serif}.gate-copy{max-width:34ch;margin:0 0 2rem;color:var(--gate-muted);font-size:1.12rem;line-height:1.9}.gate-form{max-width:450px}.gate-form label{display:block;margin-bottom:.65rem;color:var(--gate-muted);font-size:.95rem}.gate-form input{width:100%;min-height:48px;padding:.75rem .9rem;border:1px solid var(--gate-line);border-radius:4px;background:#14221b;color:var(--gate-ink);font:1rem Consolas,monospace}.gate-form input:focus-visible{outline:2px solid var(--gate-accent);outline-offset:3px}.gate-form button{min-height:44px;margin-top:1rem;padding:.7rem 1.2rem;border:1px solid var(--gate-accent);border-radius:4px;background:transparent;color:var(--gate-accent);font:700 .8rem Consolas,monospace;cursor:pointer}.gate-form button:is(:hover,:focus-visible){background:var(--gate-accent);color:var(--gate-bg)}.gate-form button:disabled{opacity:.5;cursor:wait}.gate-status{min-height:3.4em;margin:1rem 0 0;color:var(--gate-muted);font-size:.94rem;line-height:1.75;overflow-wrap:anywhere}.gate-bridge{padding:1rem 0;border-top:1px solid var(--gate-line);border-bottom:1px solid var(--gate-line)}.gate-bridge input[type=file]{padding:.6rem;font-size:.82rem;cursor:pointer}.gate-bridge input[type=file]::file-selector-button{min-height:30px;margin-right:.75rem;padding:.3rem .65rem;border:1px solid var(--gate-line);border-radius:3px;background:var(--gate-bg);color:var(--gate-ink);cursor:pointer}.gate-seal{display:grid;justify-items:center;gap:1.25rem;padding-block:2rem;border-top:1px solid var(--gate-line);border-bottom:1px solid var(--gate-line)}.gate-seal__mark{display:grid;place-items:center;width:96px;height:96px;border:1px solid var(--gate-accent);border-radius:50%;color:var(--gate-accent);font:700 1.15rem Consolas,monospace}.gate-seal span{color:var(--gate-muted);font:.65rem/1.8 Consolas,monospace;letter-spacing:.14em;text-align:center}.gate-footer{width:min(900px,calc(100% - 3rem));margin:0 auto;padding:1.5rem 0;border-top:1px solid var(--gate-line);color:var(--gate-muted);font:.65rem/1.7 Consolas,monospace}[hidden]{display:none!important}@media (max-width: 650px){.gate-main{grid-template-columns:minmax(0,1fr);gap:2rem;padding-top:3rem}.gate-seal{grid-template-columns:64px minmax(0,1fr);justify-items:start;gap:1rem;padding-block:1rem}.gate-seal__mark{width:64px;height:64px;font-size:.85rem}.gate-seal span{text-align:left}.gate-return{max-width:8rem;text-align:right;line-height:1.7}.gate-copy{font-size:1.05rem}}