:root{--bg:#eef3fa;--surface:rgba(255,255,255,.68);--surface2:rgba(255,255,255,.48);--glass:rgba(255,255,255,.34);--glass-strong:rgba(255,255,255,.82);--text:#182133;--muted:#6e788c;--line:rgba(109,126,157,.18);--primary:#4777f5;--primary2:#6f8fff;--success:#16936f;--danger:#d74f6d;--shadow:0 18px 55px rgba(46,72,114,.11)}
:root[data-theme=dark]{--bg:#101724;--surface:rgba(25,34,50,.72);--surface2:rgba(24,34,51,.56);--glass:rgba(34,45,64,.42);--glass-strong:rgba(20,29,43,.9);--text:#f2f6ff;--muted:#a2adc2;--line:rgba(199,212,239,.14);--primary:#6d8fff;--primary2:#91a8ff;--shadow:0 22px 65px rgba(0,0,0,.28)}
*{box-sizing:border-box}html{min-height:100%;background:var(--bg)}body{margin:0;min-height:100dvh;color:var(--text);font-family:Inter,-apple-system,BlinkMacSystemFont,"Segoe UI","Noto Sans SC","Microsoft YaHei",sans-serif;background:radial-gradient(circle at 10% 0%,rgba(111,143,255,.18),transparent 34%),radial-gradient(circle at 90% 8%,rgba(107,220,211,.16),transparent 35%),var(--bg)}button,input,textarea,select{font:inherit}button{touch-action:manipulation}a{color:inherit}.shell,.admin-shell{min-height:100dvh}.topbar{position:sticky;top:0;z-index:40;height:74px;display:grid;grid-template-columns:56px 1fr 56px;align-items:center;padding:8px 12px;border-bottom:1px solid var(--line);background:rgba(246,249,255,.56);backdrop-filter:blur(22px);-webkit-backdrop-filter:blur(22px)}:root[data-theme=dark] .topbar{background:rgba(14,21,34,.6)}.brand{text-align:center;font-weight:700;letter-spacing:.22em;font-size:14px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.icon-btn{width:46px;height:46px;border-radius:50%;display:grid;place-items:center;border:1px solid var(--line);background:var(--surface);color:var(--text);box-shadow:0 10px 28px rgba(43,66,105,.08);cursor:pointer}.icon-btn svg,.btn svg,.menu-item svg,.id-pill svg{display:block}.main{width:min(1180px,100%);margin:0 auto;padding:24px 16px 60px}.home-grid{display:grid;gap:20px}.glass-card,.panel{background:var(--surface);border:1px solid var(--line);box-shadow:var(--shadow);backdrop-filter:blur(24px);-webkit-backdrop-filter:blur(24px)}.glass-card{border-radius:28px;padding:18px}.panel{border-radius:26px;padding:20px}.hero{min-height:190px;background:linear-gradient(145deg,rgba(255,255,255,.78),rgba(255,255,255,.40));position:relative;overflow:hidden}.hero:after{content:"";position:absolute;inset:auto -20% -65% 20%;height:220px;background:radial-gradient(circle,rgba(91,129,250,.18),transparent 66%);pointer-events:none}.hero-head{display:flex;justify-content:space-between;gap:15px;align-items:flex-start;position:relative;z-index:1}.eyebrow{font-size:10px;color:var(--muted);letter-spacing:.2em;text-transform:uppercase}.hero-title,.title{margin:7px 0 14px;letter-spacing:-.035em}.hero-title{font-size:clamp(32px,8vw,52px);line-height:1}.title{font-size:30px;line-height:1.15}.h2{font-size:18px;margin:0}.id-pill,.id-display{display:inline-flex;align-items:center;gap:8px;border:1px solid var(--line);background:rgba(255,255,255,.34);border-radius:999px;padding:9px 13px}.announcement{margin-top:22px;overflow:hidden;white-space:nowrap;border:1px solid var(--line);border-radius:18px;background:rgba(255,255,255,.26);padding:12px 0;position:relative;z-index:1}.announcement.empty{padding:12px 14px;color:var(--muted)}.announcement-track{display:inline-block;will-change:transform;padding-left:100%;animation:announcement var(--speed,60s) linear infinite}@keyframes announcement{to{transform:translateX(-100%)}}.announcement:hover .announcement-track{animation-play-state:paused}.section-title{display:flex;justify-content:space-between;align-items:center;gap:10px;margin:2px 2px 11px}.section-title h2{margin:0;font-size:17px}.subtle,.muted{color:var(--muted)}.subtle{font-size:11px}.muted{font-size:13px}.recent-columns,.grid,.two-col{display:grid;grid-template-columns:1fr 1fr;gap:12px}.recent-list,.friend-list,.group-list,.result-grid,.stack{display:grid;gap:9px}.recent-item,.list-item{display:flex;align-items:center;gap:10px;padding:11px 12px;min-width:0;border:1px solid var(--line);border-radius:17px;background:var(--surface2);cursor:pointer}.recent-item{min-height:62px}.recent-item .grow,.list-item .grow{min-width:0;flex:1}.name-line{display:flex;align-items:center;gap:8px;min-width:0}.name-line strong,.list-title{overflow-wrap:anywhere}.preview{margin-top:3px;color:var(--muted);font-size:12px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.online,.offline{flex:0 0 auto;width:9px;height:9px;border-radius:50%}.online{background:#18a676;box-shadow:0 0 0 4px rgba(24,166,118,.1)}.offline{background:#9ca5b7}.badge{display:inline-grid;place-items:center;min-width:21px;height:21px;padding:0 6px;border-radius:99px;background:var(--danger);color:#fff;font-size:10px}.actions-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:10px}.action{min-height:72px;padding:10px;border:1px solid var(--line);border-radius:18px;background:rgba(255,255,255,.32);color:var(--text);display:flex;align-items:center;justify-content:center;flex-direction:column;gap:7px;box-shadow:0 8px 24px rgba(47,66,105,.06);cursor:pointer;transition:transform .16s ease,box-shadow .16s ease,background .16s ease}.action:hover,.btn:hover,.icon-btn:hover,.menu-item:hover{transform:translateY(-1px)}.action .ico{display:grid;place-items:center;color:var(--primary)}.action .label{font-size:12px}.admin-actions{grid-template-columns:repeat(4,1fr)}.admin-actions .action{min-height:76px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;min-height:40px;padding:9px 13px;border:1px solid var(--line);border-radius:14px;background:rgba(255,255,255,.30);color:var(--text);cursor:pointer;transition:.16s;box-shadow:0 7px 20px rgba(42,59,90,.04)}.btn.primary{background:linear-gradient(135deg,var(--primary),var(--primary2));border-color:transparent;color:#fff;box-shadow:0 12px 28px rgba(71,119,245,.23)}.btn.danger{background:var(--danger);border-color:transparent;color:#fff}.btn.ghost{background:transparent}.btn.small{min-height:36px;padding:7px 10px;font-size:12px}.btn.tiny{min-height:30px;padding:5px 8px;font-size:11px}.btn:disabled{opacity:.56;cursor:not-allowed;transform:none}.btn-progress{width:12px;height:12px;border:2px solid currentColor;border-right-color:transparent;border-radius:50%;animation:spin .65s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.field{display:grid;gap:7px}.field label{font-size:12px;color:var(--muted)}input,textarea,select{width:100%;padding:12px 13px;border:1px solid var(--line);border-radius:16px;background:rgba(255,255,255,.34);color:var(--text);outline:none}input:focus,textarea:focus,select:focus{border-color:rgba(71,119,245,.55);box-shadow:0 0 0 4px rgba(71,119,245,.08)}textarea{min-height:100px;resize:vertical}.searchbar{display:grid;grid-template-columns:1fr auto;gap:8px}.settings-list{display:grid;gap:8px}.settings-row,.account-strip{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:13px 14px;border:1px solid var(--line);border-radius:17px;background:rgba(255,255,255,.25)}.settings-row strong,.account-strip strong{display:block}.settings-row small,.account-strip small{display:block;margin-top:3px;color:var(--muted);font-size:11px}.danger-row{background:rgba(214,79,109,.055)}.modal-wrap{width:min(720px,100%)}.overlay{position:fixed;inset:0;z-index:100;display:grid;place-items:center;padding:14px;background:rgba(16,24,40,.44);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px)}.modal{width:min(720px,100%);max-height:min(88dvh,780px);overflow:auto;padding:18px;border-radius:30px;background:var(--glass-strong);border:1px solid rgba(255,255,255,.48);box-shadow:0 34px 110px rgba(16,29,56,.32);backdrop-filter:blur(30px);-webkit-backdrop-filter:blur(30px)}.modal-head,.page-head{display:flex;align-items:center;justify-content:space-between;gap:12px}.modal-head{margin-bottom:10px}.close{width:38px;height:38px;min-width:38px}.menu-list{display:grid;gap:8px}.menu-item{width:100%;display:flex;align-items:center;gap:11px;padding:13px;border:1px solid var(--line);border-radius:17px;background:rgba(255,255,255,.25);color:var(--text);cursor:pointer;text-align:left}.menu-item .mi{width:36px;height:36px;border-radius:12px;display:grid;place-items:center;color:var(--primary);background:rgba(71,119,245,.10)}.menu-item .grow{flex:1;min-width:0}.menu-item strong{font-size:13px}.menu-item small{display:block;margin-top:2px;color:var(--muted);font-size:10px}.menu-item .arrow{font-size:22px;color:var(--muted)}.toast{position:fixed;left:50%;bottom:calc(18px + env(safe-area-inset-bottom));z-index:160;max-width:calc(100% - 28px);padding:11px 15px;border-radius:14px;background:#172033;color:#fff;opacity:0;pointer-events:none;transform:translate(-50%,16px);transition:.18s;box-shadow:0 15px 38px rgba(0,0,0,.25)}.toast.show{opacity:1;transform:translate(-50%,0)}.toast.ok{background:#167d61}.toast.bad{background:#be3e58}.empty,.loading,.error-box{padding:22px;text-align:center;border:1px dashed var(--line);border-radius:17px;color:var(--muted)}.error-box{color:#b63e57;background:rgba(214,79,109,.07);border-style:solid}.chat-shell{height:calc(100dvh - 74px);display:grid;grid-template-rows:auto minmax(0,1fr) auto;max-width:1000px;margin:0 auto}.chat-head{padding:10px 2px;border-bottom:1px solid var(--line);display:grid;grid-template-columns:auto 1fr auto;gap:9px;align-items:center}.chat-head-actions{display:flex;gap:7px;align-items:center}.chat-title{text-align:center;min-width:0}.chat-title strong{display:block;overflow-wrap:anywhere}.chat-meta{margin-top:3px;font-size:10px;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.chat-scroll{position:relative;min-height:0;display:flex;flex-direction:column;overflow:hidden}.messages{min-height:0;overflow:auto;display:flex;flex-direction:column;gap:7px;padding:10px 2px 14px;scroll-behavior:smooth}.messages+.new-pill{position:absolute}.new-pill{left:50%;bottom:15px;transform:translateX(-50%);z-index:3;display:none}.new-pill:not(.hidden){display:inline-flex}.bubble-row{display:flex}.bubble-row.mine{justify-content:flex-end}.bubble{max-width:min(76%,630px);padding:8px 10px;border-radius:17px;background:var(--surface);border:1px solid var(--line);box-shadow:0 5px 18px rgba(31,53,96,.05);overflow-wrap:anywhere}.mine .bubble{background:linear-gradient(135deg,rgba(71,119,245,.96),rgba(114,144,255,.96));color:#fff;border-color:transparent}.bubble .body{white-space:pre-wrap;line-height:1.48;font-size:14px}.bubble .meta{margin-top:5px;font-size:9px;color:var(--muted)}.mine .meta{color:rgba(255,255,255,.74)}.bubble img{display:block;max-width:min(100%,320px);height:auto;border-radius:12px}.bubble-actions{display:flex;justify-content:flex-end;margin-top:4px}.composer{display:grid;grid-template-columns:auto 1fr auto;gap:7px;align-items:end;padding:7px 0 calc(7px + env(safe-area-inset-bottom));border-top:1px solid var(--line);background:transparent}.attach{width:44px;height:44px}.composer textarea{min-height:44px;max-height:130px;resize:none}.send{height:44px}.image-preview{display:none;grid-column:1/-1;align-items:center;gap:10px;padding:7px;border:1px solid var(--line);border-radius:13px;background:rgba(255,255,255,.25)}.image-preview img{width:58px;height:58px;object-fit:cover;border-radius:9px}.older-row{display:flex;justify-content:center;padding:6px}.admin-cards{display:grid;grid-template-columns:repeat(4,1fr);gap:10px}.stat{padding:14px;border:1px solid var(--line);border-radius:19px;background:rgba(255,255,255,.24)}.stat small{display:block;color:var(--muted);font-size:11px}.stat strong{display:block;margin-top:4px;font-size:24px}.admin-section{border:1px solid var(--line);border-radius:20px;padding:12px;background:rgba(255,255,255,.18)}details.admin-section>summary{cursor:pointer;font-weight:700}.table-wrap{width:100%;overflow:auto}.table{width:100%;border-collapse:collapse}.table th,.table td{padding:9px;border-bottom:1px solid var(--line);font-size:12px;text-align:left;vertical-align:top;white-space:nowrap}.table th{color:var(--muted);font-weight:600}.pagination{display:flex;align-items:center;justify-content:center;gap:8px;margin-top:12px}.hidden{display:none!important}.auth-panel{max-width:560px;margin:8vh auto}.dot{margin:0 3px}.switch{display:flex;align-items:center;gap:8px}.switch input{width:18px;height:18px}.danger-zone{border-color:rgba(214,79,109,.3);background:rgba(214,79,109,.06)}
@media(max-width:760px){.topbar{height:68px}.main{padding:16px 11px 42px}.recent-columns,.grid,.two-col{grid-template-columns:1fr}.actions-grid,.admin-actions{grid-template-columns:repeat(2,1fr)}.admin-cards{grid-template-columns:repeat(2,1fr)}.panel,.glass-card{border-radius:23px}.hero{padding:17px}.hero-head{gap:8px}.hero-title{font-size:34px}.chat-shell{height:calc(100dvh - 68px)}.bubble{max-width:86%}.modal{border-radius:24px;padding:15px}.table th,.table td{padding:8px;font-size:11px}.brand{letter-spacing:.16em}}
@media(max-width:360px){.main{padding-left:8px;padding-right:8px}.action{min-height:68px}.action .label{font-size:11px}.bubble{max-width:91%}.btn.small{padding:6px 8px}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation-duration:.01ms!important;transition:none!important;scroll-behavior:auto!important}}

/* v3 compact/mobile polish */
.admin-layout{width:min(1120px,100%);margin:0 auto;display:grid;gap:10px}.admin-layout>.panel{padding:11px 12px;border-radius:16px}.admin-cards{grid-template-columns:repeat(4,minmax(0,1fr));gap:8px}.stat{padding:10px 11px;border-radius:15px}.stat strong{font-size:20px}.admin-actions{gap:8px}.admin-actions .action{min-height:58px;padding:8px;border-radius:15px}.table th,.table td{padding:7px;font-size:11px}.btn{min-height:36px;padding:7px 11px;border-radius:12px}.btn.small{min-height:32px;padding:6px 9px}.btn.tiny{min-height:28px;padding:4px 7px}.chat-head{padding:8px 0}.chat-scroll{padding-bottom:4px}.messages{gap:6px;padding:8px 1px 10px}.bubble{max-width:min(70%,640px);padding:7px 10px;border-radius:16px}.bubble .body{font-size:13px;line-height:1.5}.meta-line{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-top:4px}.bubble .meta{margin-top:0;font-size:9px}.retract-btn{width:22px;height:22px;min-width:22px;padding:0;border:0;background:transparent;color:inherit;opacity:.68;display:grid;place-items:center;border-radius:7px}.retract-btn:active{opacity:1;background:rgba(0,0,0,.08)}.mine .retract-btn{color:#fff}.bubble-actions{display:none}.composer{padding:6px 0 calc(12px + env(safe-area-inset-bottom));margin-bottom:5px}.composer textarea{min-height:42px;padding:9px 11px;border-radius:14px}.attach,.send{height:42px}.auth-panel{margin:5vh auto}.settings-list{gap:7px}.settings-row{padding:11px 12px;border-radius:14px}
@media(max-width:760px){.admin-cards{grid-template-columns:repeat(2,minmax(0,1fr))}.admin-actions{grid-template-columns:repeat(2,minmax(0,1fr))}.admin-layout>.panel{padding:10px}.bubble{max-width:84%}.composer{padding-top:4px;margin-bottom:8px}}


/* v4 UI alignment */
.admin-entry-btn{width:100%;min-height:40px}
.admin-entry{padding:13px 14px}
.composer{margin-bottom:10px;padding-bottom:calc(8px + env(safe-area-inset-bottom))}
.admin-layout{max-width:980px;gap:8px}
.admin-cards{gap:6px}
.stat{padding:8px 9px;border-radius:14px}
.stat strong{font-size:18px}
.admin-section{padding:9px;border-radius:16px}
.admin-actions{gap:6px}
.admin-actions .action{min-height:52px;padding:6px;border-radius:13px}
.admin-actions .action .ico{transform:scale(.92)}
@media(max-width:760px){.main{padding-bottom:30px}.admin-cards{gap:6px}.admin-actions{gap:6px}.admin-actions .action{min-height:50px}.composer{margin-bottom:9px}}