:root{--ink: #1b2a3a;--accent: #2f8fff;--accent-2: #5ad7ff;--text-dim: rgba(27, 42, 58, .62);--text-faint: rgba(27, 42, 58, .42);--danger: #e05a52;--card: rgba(255, 255, 255, .72);--card-line: rgba(255, 255, 255, .85)}*{margin:0;padding:0;box-sizing:border-box}html,body{height:100%;font-family:Segoe UI,-apple-system,BlinkMacSystemFont,PingFang SC,Microsoft YaHei,sans-serif;color:var(--ink);overflow:hidden}.bg{position:fixed;inset:0;overflow:hidden;z-index:0}.bg-base{position:absolute;inset:-3%;background:url(/assets/login/bg-wide.jpg) center center / cover no-repeat;animation:kenburns 60s ease-in-out infinite alternate}@media (max-aspect-ratio: 1/1){.bg-base{background-image:url(/assets/login/bg-portrait.jpg)}}@keyframes kenburns{0%{transform:scale(1) translateZ(0)}to{transform:scale(1.06) translate3d(-.8%,-.5%,0)}}.clouds{position:absolute;inset:0;opacity:.5;mix-blend-mode:screen}.cloud{position:absolute;background:radial-gradient(closest-side,#fffffff2,#fff0 70%);filter:blur(28px)}.cloud-a{top:6%;left:-30%;width:46%;height:18%;animation:drift 64s linear infinite}.cloud-b{top:2%;left:-50%;width:34%;height:13%;animation:drift 96s linear infinite reverse}.cloud-c{top:20%;left:-40%;width:26%;height:10%;animation:drift 78s linear infinite}@keyframes drift{0%{transform:translateZ(0)}to{transform:translate3d(150%,1.5%,0)}}.glint{position:absolute;left:-30%;right:-30%;bottom:0;height:46%;background:linear-gradient(105deg,#fff0 38%,#ffffff57 47%,#ffffff0d 55%,#fff0 64%);mix-blend-mode:screen;animation:glint 14s ease-in-out infinite alternate}@keyframes glint{0%{transform:translate3d(-14%,0,0) rotate(0);opacity:.55}to{transform:translate3d(14%,0,0) rotate(1.2deg);opacity:.9}}.scrim{position:absolute;inset:0;background:linear-gradient(180deg,#0c20344d,#0c203400 26%),linear-gradient(0deg,#0c203442,#0c203400 34%)}.sound{position:fixed;top:16px;right:16px;z-index:30;height:38px;min-width:38px;padding:0 12px;display:inline-flex;align-items:center;gap:7px;border-radius:999px;border:1px solid rgba(255,255,255,.6);background:#ffffff8c;backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);color:var(--ink);font:inherit;font-size:13px;cursor:pointer;-webkit-user-select:none;user-select:none;-webkit-tap-highlight-color:transparent}.sound:hover{background:#ffffffbf}.sound .ico{font-size:15px;line-height:1}.sound[data-muted="1"] .ico{position:relative;opacity:.55}.sound[data-muted="1"] .ico:after{content:"";position:absolute;left:-3px;right:-3px;top:50%;height:2px;background:currentColor;transform:rotate(-32deg)}.stage{position:relative;z-index:1;height:100vh;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:20px;padding:40px 24px;overflow-y:auto}.brand{text-align:center;color:#fff}.brand h1{font-size:46px;font-weight:800;letter-spacing:10px;text-shadow:0 2px 18px rgba(10,30,50,.5),0 1px 3px rgba(10,30,50,.55),0 0 3px rgba(10,30,50,.4)}.brand h1 .dot{color:var(--accent-2)}.brand p{margin-top:10px;font-size:14px;color:#1b2a3ad1;text-shadow:0 1px 0 rgba(255,255,255,.8),0 0 12px rgba(255,255,255,.9)}.card{width:100%;max-width:452px;padding:30px 30px 26px;border-radius:22px;background:var(--card);border:1px solid var(--card-line);backdrop-filter:blur(14px) saturate(1.1);-webkit-backdrop-filter:blur(14px) saturate(1.1);box-shadow:0 18px 48px #0c284647}.card[hidden]{display:none}.card h2{font-size:19px;font-weight:700;margin-bottom:6px}.card .sub{font-size:13px;color:var(--text-dim);margin-bottom:20px;line-height:1.6}.code-box{position:relative}.cells{display:flex;justify-content:space-between}.cell{flex:1;min-width:0;margin:0 5px;height:64px;line-height:64px;text-align:center;border-radius:14px;background:#ffffffb8;border:1px solid rgba(255,255,255,.9);box-shadow:inset 0 2px 6px #14325012;transition:border-color .2s,background .2s,box-shadow .2s}.cell-text{font-size:29px;font-weight:700;font-variant-numeric:tabular-nums}.code-box.focused .cell{border-color:var(--accent);background:#fffffff2;box-shadow:0 0 0 3px #2f8fff2e}.code-input{position:absolute;left:0;top:0;width:100%;height:64px;opacity:0;cursor:pointer}.field{margin-bottom:10px}.field label{display:block;margin-bottom:5px;font-size:13px;color:var(--text-dim)}.field input{width:100%;height:44px;padding:0 14px;border-radius:12px;border:1px solid rgba(255,255,255,.95);background:#fffc;color:var(--ink);font-size:15px;font-family:inherit;outline:none;-webkit-appearance:none;appearance:none;transition:border-color .2s,box-shadow .2s}.field input::placeholder{color:var(--text-faint)}.field input:focus{border-color:var(--accent);box-shadow:0 0 0 3px #2f8fff2e}.field input:-webkit-autofill,.field input:-webkit-autofill:hover,.field input:-webkit-autofill:focus{-webkit-text-fill-color:var(--ink);-webkit-box-shadow:0 0 0 1000px rgba(255,255,255,.92) inset;caret-color:var(--ink)}.btn{width:100%;height:48px;border:none;border-radius:24px;background:linear-gradient(120deg,var(--accent),var(--accent-2));color:#fff;font-size:16px;font-weight:700;font-family:inherit;cursor:pointer;box-shadow:0 8px 20px #2f8fff52;transition:transform .15s,opacity .2s,box-shadow .2s}.btn:hover:not(:disabled){transform:translateY(-1px);box-shadow:0 12px 26px #2f8fff61}.btn:disabled{opacity:.45;cursor:not-allowed}.btn.ghost{background:#fff9;color:var(--ink);border:1px solid rgba(255,255,255,.95);box-shadow:none}.btn.ghost:hover{background:#ffffffd9}.error{min-height:20px;margin-top:12px;font-size:13px;color:var(--danger);text-align:center}.hint{margin-top:12px;text-align:center;font-size:12px;color:var(--text-faint)}.rooms-bar{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:12px}.rooms-tip{font-size:12px;color:var(--text-faint)}.rooms-account{margin-top:6px;font-size:12px;color:var(--text-dim);text-align:right;flex-shrink:0}.btn-small{width:auto;height:36px;padding:0 18px;font-size:14px;border-radius:18px;flex-shrink:0}.room-list{display:flex;flex-direction:column;gap:8px}.space-cover-slot{width:56px;height:56px;flex:none;border-radius:14px;overflow:hidden;border:1px solid rgba(255,255,255,.95);background:#ffffff9e;display:flex;align-items:center;justify-content:center}.space-cover{width:100%;height:100%;object-fit:cover;display:block}.space-cover-slot.broken{border:1px dashed var(--warn)}.space-cover-slot .cover-fallback{width:100%;height:100%;border-radius:0;font-size:24px}.space-history{margin-top:18px;padding-top:14px;border-top:1px solid rgba(0,0,0,.08);text-align:left}.demo-entry{margin-top:14px;padding-top:14px;border-top:1px solid rgba(0,0,0,.08);text-align:center}.demo-entry-note{margin:8px 0 0;font-size:12px;color:var(--text-faint);line-height:1.5}.space-history-head{display:flex;align-items:baseline;gap:10px;margin-bottom:8px;font-size:12px;color:var(--text-dim)}.space-history-head .link-mini{margin-left:auto}.space-history-list{display:flex;flex-direction:column;gap:8px}.space-history-item{display:flex;align-items:center;gap:10px;width:100%;padding:10px 12px;text-align:left;border-radius:14px;cursor:pointer;border:1px solid rgba(255,255,255,.95);background:#ffffff9e;font-family:inherit;color:var(--ink);transition:border-color .2s,background .2s}.space-history-item:hover:not(:disabled){background:#ffffffd9;border-color:var(--accent)}.space-history-name{flex:1;min-width:0;font-size:14px;font-weight:500;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.space-history-code{flex:none;font-size:12px;color:var(--text-faint);font-variant-numeric:tabular-nums}.space-history-item[data-alive="0"]{opacity:.55;text-decoration:line-through}.room-item{display:flex;align-items:center;gap:10px;width:100%;padding:10px 12px;text-align:left;border-radius:14px;cursor:pointer;border:1px solid rgba(255,255,255,.95);background:#ffffff9e;font-family:inherit;color:var(--ink);transition:border-color .2s,background .2s,opacity .2s}.room-item:hover:not(:disabled){background:#ffffffd9;border-color:var(--accent)}.room-item[data-state=disabled]{opacity:.45;cursor:not-allowed;filter:grayscale(1)}.room-cover-slot{flex-shrink:0;display:block}.room-cover{display:block;width:42px;height:42px;border-radius:10px;object-fit:cover;flex-shrink:0;background:#14283c1f}.room-cover-fallback{display:flex;align-items:center;justify-content:center;background:#ffffff8c;font-size:18px;font-weight:800;color:var(--accent)}.room-meta{display:flex;align-items:baseline;gap:8px;min-width:0;flex:1 1 auto}.room-seq{font-size:12px;font-weight:700;color:var(--text-dim);font-variant-numeric:tabular-nums;background:#14283c14;border-radius:6px;padding:1px 6px;flex-shrink:0;min-width:34px;text-align:center}.room-name{font-size:15px;font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.room-count{font-size:13px;color:var(--text-dim);font-variant-numeric:tabular-nums;flex-shrink:0}.room-tag{font-size:11px;color:var(--accent);flex-shrink:0;border:1px solid rgba(47,143,255,.4);border-radius:999px;padding:0 6px}.room-tag-trial{color:#c47a12;border-color:#c47a1273}.room-tag-lock{color:#5b7183;border-color:#5b718366}.room-blocked{font-size:12px;color:var(--danger);flex-shrink:0}.create-room-box{margin-bottom:12px;padding:12px;border-radius:14px;border:1px solid rgba(255,255,255,.95);background:#ffffff80}.create-room-box[hidden]{display:none}.create-room-actions{display:flex;gap:8px}.create-room-actions .btn{flex:1}.retry{margin-top:4px}.island-head{display:flex;gap:14px;align-items:center;margin-bottom:18px;padding-bottom:16px;border-bottom:1px solid rgba(27,42,58,.12)}.cover{width:78px;height:78px;border-radius:14px;object-fit:cover;background:#14283c1f;flex-shrink:0}.cover-fallback{width:78px;height:78px;border-radius:14px;background:#ffffff8c;display:flex;align-items:center;justify-content:center;font-size:32px;font-weight:800;color:var(--accent);flex-shrink:0}.island-meta{min-width:0}.island-name{font-size:18px;font-weight:700;margin-bottom:5px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.island-code{font-family:ui-monospace,Menlo,Consolas,monospace;font-size:22px;letter-spacing:3px;color:var(--accent)}.cover-warn{margin-top:6px;font-size:12px;color:var(--danger)}.back-link{display:inline-block;margin-top:14px;font-size:13px;color:var(--text-dim);cursor:pointer;background:none;border:none;font-family:inherit;text-decoration:underline}.back-link:hover{color:var(--ink)}.tabs{display:flex;gap:8px;margin-bottom:12px;border-bottom:1px solid rgba(27,42,58,.12)}.tab{flex:1;padding:8px 0;border:none;background:none;font-family:inherit;font-size:15px;color:var(--text-dim);cursor:pointer;border-bottom:2px solid transparent}.tab[aria-selected="1"]{color:var(--ink);font-weight:700;border-bottom-color:var(--accent)}.guest-row{display:flex;gap:8px;align-items:stretch}.guest-row input{flex:1 1 auto;min-width:0;height:44px;padding:0 14px;border-radius:22px;border:1px solid rgba(255,255,255,.95);background:#fffc;color:var(--ink);font-size:15px;font-family:inherit;outline:none;-webkit-appearance:none;appearance:none;transition:border-color .2s,box-shadow .2s}.guest-row input::placeholder{color:var(--text-faint)}.guest-row input:focus{border-color:var(--accent);box-shadow:0 0 0 3px #2f8fff2e}.guest-row .btn{flex:0 0 auto;width:auto;height:44px;padding:0 22px;font-size:15px;border-radius:22px;white-space:nowrap}@media (max-width: 360px){.guest-row .btn{padding:0 16px;font-size:14px}}.foot-links{display:flex;align-items:center;justify-content:space-between;gap:10px;flex-wrap:wrap;margin-top:6px}.foot-links .back-link{margin-top:0}.session-hint{font-size:12px;color:var(--text-dim);display:inline-flex;align-items:center;gap:6px;min-width:0}.session-hint b{color:var(--ink);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:9em}.link-mini{border:none;background:none;padding:0;font:inherit;font-size:12px;color:var(--accent);text-decoration:underline;cursor:pointer}.link-mini:hover{color:var(--ink)}.divider{display:flex;align-items:center;gap:12px;margin:14px 0 12px;color:var(--text-faint);font-size:12px}.divider:before,.divider:after{content:"";flex:1;height:1px;background:#1b2a3a1f}.model-pick{display:flex;gap:8px}.model-pick button{flex:1;padding:8px 4px;cursor:pointer;border-radius:12px;border:1px solid rgba(255,255,255,.95);background:#ffffff9e;color:var(--text-dim);font-family:inherit;font-size:14px;transition:all .2s}.model-pick button[aria-pressed="1"]{border-color:var(--accent);background:#2f8fff1f;color:var(--ink);font-weight:700;box-shadow:0 0 0 2px #2f8fff2e}.model-desc{margin:-4px 0 10px;font-size:12px;color:var(--text-faint);text-align:center}@keyframes shake{0%,to{transform:translate(0)}20%{transform:translate(-10px)}40%{transform:translate(10px)}60%{transform:translate(-6px)}80%{transform:translate(6px)}}.shake{animation:shake .4s ease-in-out}@media (prefers-reduced-motion: reduce){.bg-base,.cloud,.glint,.shake{animation:none!important}.btn:hover:not(:disabled){transform:none}}@media (max-width: 520px){.brand h1{font-size:34px;letter-spacing:7px}.card{padding:24px 20px 20px}.cell{height:56px;line-height:56px}.cell-text{font-size:25px}.code-input{height:56px}}@media (max-width: 380px){.stage{padding:28px 12px}.card{padding:20px 14px 18px;border-radius:18px}.cell{margin:0 3px;height:50px;line-height:50px}.cell-text{font-size:22px}.code-input{height:50px}.brand h1{font-size:29px;letter-spacing:5px}}