:root{--ink:#17232c;--muted:#71808a;--paper:#fffdf8;--cream:#f4f0e7;--line:#e4e2da;--navy:#101c27;--navy-2:#172a35;--teal:#0f7765;--teal-soft:#e1f0e9;--coral:#e9785b;--shadow:0 18px 50px #1a2a3010;font-family:"Trebuchet MS","Microsoft YaHei",sans-serif;color:var(--ink);background:var(--cream);font-size:14px}*{box-sizing:border-box}body{margin:0;min-height:100vh;background:radial-gradient(circle at 90% -10%,#ffdec852 0,transparent 35%),var(--cream)}[hidden]{display:none!important}button,input,select,textarea{font:inherit}button{border:1px solid var(--line);border-radius:8px;background:var(--paper);padding:10px 15px;color:var(--ink);cursor:pointer;min-height:40px;transition:transform .18s,box-shadow .18s,background .18s,border-color .18s}button:hover{border-color:#9bc6b5;background:#f1f8f3;box-shadow:0 7px 18px #163a2a12;transform:translateY(-1px)}button:active{transform:translateY(0)}button:disabled{opacity:.5;cursor:wait;transform:none}button.primary{background:var(--teal);color:#fff;border-color:var(--teal);box-shadow:0 8px 18px #0f77652b}button.primary:hover{background:#096653;border-color:#096653}.button-accent{background:var(--coral);border-color:var(--coral);color:#fff;box-shadow:0 8px 18px #e9785b2e}.button-accent:hover{background:#d8644b;border-color:#d8644b}.button-quiet{background:transparent;border-color:transparent;color:var(--muted)}.button-quiet:hover{background:#ffffff80;border-color:var(--line);color:var(--ink)}input,select,textarea{border:1px solid var(--line);border-radius:8px;background:#fff;padding:11px 12px;width:100%;color:var(--ink);transition:border-color .18s,box-shadow .18s}input:focus,select:focus,textarea:focus,button:focus-visible{outline:2px solid #8ec8b3;outline-offset:2px;border-color:var(--teal);box-shadow:0 0 0 4px #8ec8b322}input[type=checkbox]{width:18px;height:18px;accent-color:var(--teal)}label{display:flex;flex-direction:column;gap:7px;font-size:11px;font-weight:700;letter-spacing:.02em;margin-bottom:15px}h1,h2,h3{font-family:Georgia,"Times New Roman",serif}h1{font-size:clamp(30px,3vw,44px);letter-spacing:-1.8px;margin:7px 0 9px;font-weight:500}h2{font-size:22px;margin:0 0 14px;font-weight:600}p{line-height:1.7}.muted{color:var(--muted);font-size:13px}.eyebrow,.section-kicker,.login-kicker{font:10px/1.2 "Trebuchet MS",sans-serif;letter-spacing:2.2px;color:var(--teal);font-weight:800;margin:0}.section-kicker{font-size:9px;letter-spacing:1.7px;color:#9a6a54}.login-kicker{color:var(--coral);margin-bottom:15px}.shell{display:grid;grid-template-columns:248px minmax(0,1fr);min-height:100vh}.sidebar{background:var(--navy);color:#e8f0ed;padding:30px 18px 22px;display:flex;flex-direction:column;gap:25px}.brand-mark{display:flex;align-items:center;gap:11px}.brand-mark strong{display:block;font:600 21px Georgia,serif;letter-spacing:-.3px}.brand-mark>div>span,.brand-mark div span{display:block;font:9px/1.6 "Trebuchet MS",sans-serif;letter-spacing:1.7px;color:#91aaa5;margin-top:2px}.brand-symbol{display:grid;place-items:center;width:36px;height:36px;border:1px solid #69c6a866;border-radius:50%;color:#b3e7d0;font-size:19px}.side-label{font:10px/1.2 sans-serif;letter-spacing:1.8px;text-transform:uppercase;color:#6e8a87;padding:0 13px 2px}.sidebar nav{display:flex;flex-direction:column;gap:5px}.nav{display:flex;align-items:center;gap:12px;border:0;background:transparent;text-align:left;padding:12px 13px;color:#a5b9b5;border-radius:9px}.nav-icon{font-size:18px;width:20px;text-align:center;color:#6d938e}.nav:hover{background:#ffffff0d;color:#e8f0ed;box-shadow:none;transform:none}.nav.active{background:#e8f6ed;color:#153e37;font-weight:700;box-shadow:inset 3px 0 var(--coral)}.nav.active .nav-icon{color:var(--teal)}.side-foot{margin-top:auto}.security-badge{display:flex;gap:10px;padding:13px 12px;border:1px solid #ffffff18;border-radius:10px;background:#ffffff08}.security-badge>span{color:#65c48e;font-size:10px;padding-top:2px}.security-badge strong,.security-badge small{display:block}.security-badge strong{font-size:12px}.security-badge small{font-size:10px;color:#8aa29f;margin-top:3px}.side-foot>p{font-size:11px;color:#829693;line-height:1.8;padding:0 12px}.sidebar .quiet{color:#a5b9b5;width:100%;text-align:left;padding-left:12px}.sidebar .quiet span{float:right}main{padding:42px clamp(22px,5vw,70px);min-width:0}.topbar{display:flex;justify-content:space-between;align-items:flex-start;gap:30px;margin-bottom:30px}.page-heading{max-width:600px}.top-actions{display:flex;align-items:center;gap:9px;flex-wrap:wrap;justify-content:flex-end}.sync-control{display:flex;align-items:center;gap:9px;padding:7px 9px 7px 11px;border:1px solid var(--line);background:#fff9;border-radius:10px;min-height:50px}.sync-control>div{display:flex;flex-direction:column;min-width:105px}.sync-control .sync-label{font-size:11px;font-weight:800}.sync-control small{font-size:10px;color:var(--muted);margin-top:2px}.sync-dot{width:7px;height:7px;border-radius:50%;background:#b7c1bc;box-shadow:0 0 0 3px #b7c1bc22}.sync-dot.is-on{background:#36ad73;box-shadow:0 0 0 3px #36ad7340}.sync-control select{width:auto;min-width:75px;padding:7px 8px;font-size:11px;background:transparent}.switch{margin:0;display:block;position:relative;width:35px;height:20px;cursor:pointer}.switch input{position:absolute;opacity:0}.switch span{display:block;width:35px;height:20px;border-radius:15px;background:#cad2ce;transition:.2s}.switch span:after{content:"";display:block;width:14px;height:14px;border-radius:50%;background:#fff;position:absolute;top:3px;left:3px;box-shadow:0 1px 4px #0003;transition:.2s}.switch input:checked+span{background:var(--teal)}.switch input:checked+span:after{left:18px}.compact{background:transparent;border:0;padding:0;min-height:0}.compact>span.sync-label{font-size:11px;color:var(--ink);font-weight:800}.compact .switch{margin-left:1px}.compact select{min-width:70px}.card{background:var(--paper);border:1px solid var(--line);border-radius:13px;box-shadow:var(--shadow)}#notice:empty{display:none}#notice{padding:11px 15px;background:#eaf3ea;border-left:3px solid var(--teal);font-size:13px;margin:0 0 18px;border-radius:0 7px 7px 0}.login{padding:32px;max-width:460px;margin:45px auto}.login form{margin-top:24px}.login button{width:100%;display:flex;justify-content:center;gap:10px}.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin:0 0 19px}.stat{padding:21px 22px;display:flex;flex-direction:column;gap:8px;position:relative;overflow:hidden}.stat:after{content:"";position:absolute;width:60px;height:60px;border-radius:50%;right:-17px;top:-17px;background:var(--teal-soft)}.stat strong{font:600 31px Georgia,serif;position:relative;z-index:1}.stat span{color:var(--muted);font-size:11px;letter-spacing:.04em;position:relative;z-index:1}.toolbar-main{background:#ffffffa8;border:1px solid var(--line);border-radius:12px;padding:11px 12px;margin:0 0 16px;align-items:center}.toolbar-title{display:flex;flex-direction:column;gap:4px;min-width:108px;margin-right:3px}.toolbar-title strong{font:600 18px Georgia,serif}.toolbar{display:flex;gap:9px;align-items:flex-end;flex-wrap:wrap}.toolbar label{margin:0;min-width:130px}.toolbar-main .search-field{min-width:220px;flex:1;position:relative}.search-field>span{position:absolute;left:11px;bottom:11px;color:var(--muted);font-size:19px;z-index:1}.search-field input{padding-left:31px}.toolbar-main button{white-space:nowrap}.table-wrap{overflow:auto}.table-wrap.card{border-radius:12px}table{border-collapse:collapse;width:100%;min-width:800px;white-space:nowrap;text-align:left}th{padding:13px 18px;color:#73827f;font-weight:800;background:#f7f8f3;font-size:10px;letter-spacing:.08em;text-transform:uppercase}td{padding:15px 18px;border-top:1px solid #edf0eb;font-size:13px}tbody tr{transition:background .15s}tbody tr:hover{background:#f7fbf7}td small{display:block;margin-top:5px;color:#8a9793}.badge{display:inline-block;padding:6px 10px;background:var(--teal-soft);color:var(--teal);font-size:11px;border-radius:6px;font-weight:800}.badge-live{background:#e0f4e7;color:#167247}.actions{display:flex;align-items:center;gap:6px;flex-wrap:wrap}.actions button{padding:6px 10px;font-size:11px;min-height:30px}.account-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(310px,1fr));gap:17px}.account{padding:23px;position:relative;overflow:hidden}.account:before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:var(--account-color,var(--teal))}.account h2{margin-top:4px}.account p{font-size:12px;margin:8px 0}.account .actions{margin-top:18px;padding-top:15px;border-top:1px solid var(--line)}.empty{padding:45px;text-align:center;color:var(--muted)}.warning,#dialog-error{color:#a54327}.warning{background:#fff3ed;padding:10px;border-radius:8px}.message{margin-bottom:13px;padding:20px}.message summary{cursor:pointer;display:flex;justify-content:space-between;gap:15px;font-size:14px}.message summary strong{font-family:Georgia,serif;font-weight:600}.message pre{white-space:pre-wrap;overflow-wrap:anywhere;font:14px/1.8 "Trebuchet MS","Microsoft YaHei",sans-serif;color:#344b43}.code{font:22px ui-monospace,monospace;letter-spacing:2px;padding:12px;background:var(--teal-soft);border-radius:8px}.inbox-page{background:radial-gradient(circle at 12% 8%,#ffdfc855 0,transparent 32%),var(--cream)}.inbox-main{max-width:1040px;margin:auto;padding:30px 26px 22px}.inbox-top{display:flex;justify-content:space-between;align-items:center}.inbox-top-status{display:flex;align-items:center;gap:9px;color:var(--muted);font-size:12px}.status-led{width:7px;height:7px;border-radius:50%;background:#35ae73;box-shadow:0 0 0 4px #35ae7326}.inbox-hero{display:flex;justify-content:space-between;align-items:flex-end;padding:80px 0 38px;border-bottom:1px solid var(--line)}.inbox-hero h1{font-size:clamp(38px,6vw,68px);margin:11px 0 12px}.hero-copy{font-size:15px;color:var(--muted);margin:0}.hero-stamp{border:1px solid #b9c9c1;border-radius:50%;width:104px;height:104px;display:flex;flex-direction:column;align-items:center;justify-content:center;transform:rotate(8deg);color:var(--teal);background:#ffffff70}.hero-stamp strong{font:33px Georgia,serif}.hero-stamp span{font-size:8px;letter-spacing:1px;line-height:1.4;text-align:center}.inbox-login{max-width:560px;padding:30px;margin:45px auto}.inbox-login h2{font-size:27px}.privacy-note{display:flex;gap:9px;align-items:center;margin-top:18px;color:var(--muted);font-size:11px}.privacy-note span:first-child{color:var(--coral);font-size:17px}.mail-toolbar{display:flex;justify-content:space-between;align-items:center;gap:18px;padding:18px 0;border-bottom:1px solid var(--line);margin-bottom:18px}.mail-toolbar>div:first-child{display:flex;align-items:center;gap:10px}.mail-actions{display:flex;align-items:center;gap:13px}.inbox-footer{display:flex;justify-content:space-between;border-top:1px solid var(--line);margin-top:45px;padding-top:17px;color:#8a9793;font-size:10px;letter-spacing:1.4px}.dialog-head{display:flex;justify-content:space-between;align-items:flex-start;gap:20px;margin-bottom:20px}.dialog-head h2{margin-top:6px}.close-button{border:0;background:transparent;font-size:26px;line-height:1;padding:1px 8px;min-height:32px;color:var(--muted)}dialog{border:1px solid #cedbd3;border-radius:16px;padding:28px;width:min(650px,94vw);max-height:90vh;color:var(--ink);background:var(--paper);box-shadow:0 24px 90px #10241e44}dialog::backdrop{background:#0f261e66;backdrop-filter:blur(4px)}textarea{resize:vertical;font-family:ui-monospace,monospace;font-size:12px}#dialog-body>.muted{margin-top:0}#dialog-submit{margin-top:16px;width:100%;display:flex;justify-content:center;gap:10px}.tone-0{--account-color:#18796b;--account-wash:#edf5ed}.tone-1{--account-color:#355c9c;--account-wash:#edf2fb}.tone-2{--account-color:#87523c;--account-wash:#fbf1e9}.tone-3{--account-color:#785496;--account-wash:#f4eef9}.tone-4{--account-color:#7a6826;--account-wash:#f8f4df}.badge[class*=tone-]{color:var(--account-color);background:var(--account-wash)}@media(max-width:980px){.shell{grid-template-columns:205px minmax(0,1fr)}main{padding:30px 24px}.stats{grid-template-columns:repeat(2,1fr)}.topbar{flex-direction:column}.top-actions{justify-content:flex-start}.toolbar-title{width:100%}}@media(max-width:680px){.shell{display:block}.sidebar{padding:18px;gap:15px}.brand-mark strong{font-size:19px}.sidebar nav{flex-direction:row;overflow:auto;gap:3px}.nav{white-space:nowrap;padding:10px 11px}.nav-icon{display:none}.side-label,.side-foot{display:none}main{padding:24px 16px}.topbar{gap:17px;margin-bottom:24px}.top-actions{gap:5px}.sync-control{order:3;width:100%;justify-content:space-between}.sync-control>div{flex:1}.top-actions>button{flex:1}.stats{gap:9px}.stat{padding:15px}.stat strong{font-size:25px}.toolbar-main{align-items:stretch}.toolbar-main label,.toolbar-main .search-field{min-width:100%;flex:1}.toolbar-main button{flex:1}.inbox-main{padding:22px 16px}.inbox-hero{padding:56px 0 28px}.hero-stamp{width:76px;height:76px}.hero-stamp strong{font-size:25px}.inbox-login{margin:30px 0;padding:23px}.mail-toolbar{align-items:stretch;flex-direction:column}.mail-toolbar>div:first-child{justify-content:space-between}.mail-actions{justify-content:space-between;flex-wrap:wrap}.mail-actions .compact{flex:1;justify-content:space-between}.inbox-footer{margin-top:30px}}

/* Interaction details */
.email-line{display:flex;align-items:center;gap:8px;min-width:245px}.email-line strong{font-size:14px;letter-spacing:.01em;color:#122c32}.copy-button{min-height:26px!important;padding:4px 8px!important;border:1px solid #bfd4c9!important;border-radius:6px!important;background:#f5fbf6!important;color:var(--teal)!important;font-size:10px!important;box-shadow:none!important;transform:none!important}.copy-button:hover{background:var(--teal-soft)!important}.mailbox-cell small{padding-left:1px}.table-wrap td:first-child{width:52px;text-align:center;vertical-align:middle}.table-wrap td:first-child input{display:block;margin:0 auto}.table-wrap td:last-child>.actions{min-width:220px;justify-content:flex-start}.actions{row-gap:8px}.busy-layer{position:fixed;inset:0;z-index:100;background:#10232b36;backdrop-filter:blur(2px);display:flex;align-items:center;justify-content:center;gap:10px;color:#fff;font-size:13px;font-weight:700;pointer-events:all}.busy-layer[hidden]{display:none}.busy-layer>span:last-child{background:var(--navy);padding:12px 16px;border-radius:9px;box-shadow:0 8px 30px #07151b55}.busy-spinner{width:16px;height:16px;border:2px solid #ffffff66;border-top-color:#fff;border-radius:50%;animation:spin .7s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}body.is-busy .shell{pointer-events:none}body.is-busy dialog{pointer-events:none}.mailbox-identity{display:flex;align-items:center;gap:10px}.mailbox-identity strong{font:600 20px Georgia,serif;color:var(--ink)}
.mailbox-identity{display:flex;align-items:center;gap:12px;flex-wrap:wrap;max-width:100%;margin-top:8px}.mailbox-identity strong{font:600 clamp(18px,2.4vw,24px) Georgia,"Times New Roman",serif;color:var(--ink);overflow-wrap:anywhere;word-break:break-word}.mailbox-identity .copy-button{flex:0 0 auto}.inbox-hero{overflow:visible}

/* qiaomu-inspired cockpit register: cold graphite, one teal accent, hairline data density */
:root{--ink:#e6efed;--muted:#82939b;--paper:#121a22;--cream:#0b1015;--line:#26343d;--navy:#0d141b;--navy-2:#121e26;--teal:#45d4c1;--teal-soft:#123b3b;--coral:#f18b68;--shadow:0 18px 55px #00000035}
body,.inbox-page{background:radial-gradient(circle at 86% -10%,#16433c38 0,transparent 32%),var(--cream);color:var(--ink)}
button{background:#121a22;border-color:#2b3b44;color:var(--ink)}button:hover{background:#192832;border-color:#45d4c1;box-shadow:0 8px 20px #00000038}.button-quiet{color:#9aabb1}.button-quiet:hover{background:#ffffff0a;border-color:#354852;color:#e6efed}button.primary{background:var(--teal);border-color:var(--teal);color:#0b1719;box-shadow:0 8px 20px #45d4c126}button.primary:hover{background:#6ae2d2;border-color:#6ae2d2}.button-accent{background:var(--coral);border-color:var(--coral);color:#19110f}.card,.table-wrap.card{background:#121a22;border-color:#26343d;box-shadow:0 15px 45px #00000029}input,select,textarea{background:#0e151c;border-color:#2a3a43;color:#e6efed}input::placeholder,textarea::placeholder{color:#60727b}input:focus,select:focus,textarea:focus,button:focus-visible{outline-color:#45d4c1;border-color:#45d4c1;box-shadow:0 0 0 4px #45d4c11f}.sidebar{background:#0c1319;border-color:#202d35}.brand-mark>div>span,.brand-mark div span{color:#718a8c}.brand-symbol{border-color:#45d4c166;color:#63decf}.side-label{color:#597276}.nav{color:#8ba0a2}.nav-icon{color:#5e8581}.nav:hover{background:#ffffff0a;color:#dce8e5}.nav.active{background:#123b3b;color:#58d8c6;box-shadow:inset 3px 0 var(--teal)}.nav.active .nav-icon{color:var(--teal)}.security-badge{border-color:#ffffff17;background:#ffffff06}.security-badge>span{color:#5cd6a4}.side-foot>p{color:#718a8c}.sidebar .quiet{color:#8da2a3}.eyebrow{color:var(--teal)}.section-kicker{color:#d09170}.sync-control{background:#121a22cc;border-color:#2a3941}.sync-control .sync-label{color:#dbe8e5}.sync-control small{color:#71848b}.sync-control select{background:transparent}.sync-dot{background:#52636a;box-shadow:0 0 0 3px #52636a22}.sync-dot.is-on{background:#45d4c1;box-shadow:0 0 0 3px #45d4c133}.stats .stat:after{background:#123b3b}.stat strong{font-family:"Cascadia Code","JetBrains Mono",ui-monospace,monospace;font-variant-numeric:tabular-nums;color:#f0faf6}.stat span{color:#84979d}.toolbar-main{background:#101820cc;border-color:#26343d}.toolbar-title strong{color:#e7f0ee}.table-wrap th{background:#0f171e;color:#718990;border-color:#26343d}.table-wrap td{border-color:#202d35;color:#dce8e5}.table-wrap tbody tr:hover{background:#16252b}.badge{background:#123b3b;color:#52d6c2}.badge-live{background:#123d35;color:#62dfae}.account:before{background:var(--account-color,var(--teal))}.account p{color:#a3b1b2}.account .actions{border-color:#26343d}.warning{background:#3a241e;color:#ffb49a}.empty{color:#7d9096}.message pre{color:#c5d4d1}.message{border-color:#26343d}.code{background:#123b3b;color:#6ce2d0}.inbox-top-status{color:#82939b}.hero-copy{color:#82939b}.hero-stamp{border-color:#2e5d5a;color:var(--teal);background:#12221f}.inbox-footer{border-color:#26343d;color:#718990}.dialog-head{border-color:#26343d}.close-button{color:#82939b}.busy-layer{background:#081015b8}.busy-layer>span:last-child{background:#16242c;color:#e9f4f0}.mailbox-identity strong{color:#eaf5f1}.copy-button{background:#123b3b!important;border-color:#2e6b66!important;color:#63dfcf!important}.copy-button:hover{background:#18514e!important}.inbox-login{background:#121a22}.inbox-login .privacy-note{color:#82939b}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;scroll-behavior:auto!important}}
.page-heading h1,.dialog-head h2,.inbox-hero h1,.inbox-login h2,.brand-mark strong,.toolbar-title strong{font-family:"Trebuchet MS","Microsoft YaHei",sans-serif;letter-spacing:-.04em}.stat:after{width:48%;height:2px;top:auto;right:0;bottom:0;border-radius:0;background:linear-gradient(90deg,transparent,var(--teal))}.table-wrap td:first-child{border-left:2px solid transparent}.table-wrap tbody tr:hover td:first-child{border-left-color:var(--teal)}