:root{font-family:'DM Sans','Noto Sans SC',system-ui,sans-serif;color:#172039;background:#f5f6f8;font-synthesis:none}*{box-sizing:border-box}body{margin:0;min-width:320px}button,input{font:inherit}button{cursor:pointer}button:disabled{cursor:wait;opacity:.65}input:focus,button:focus-visible{outline:2px solid #4279ee;outline-offset:2px}.hidden{display:none!important}.muted{color:#8991a4}.eyebrow{font-size:11px;font-weight:700;letter-spacing:.16em;color:#7590a8}.brand-mark{display:inline-grid;place-items:center;width:37px;height:37px;border-radius:12px;background:#375fe0;color:white;font-size:23px;line-height:1}.brand-mark-large{width:48px;height:48px;border-radius:15px;background:#fff;color:#3158df;font-size:28px}.login-screen{min-height:100vh;display:grid;grid-template-columns:minmax(440px,48%) 1fr}.login-art{position:relative;overflow:hidden;display:flex;flex-direction:column;justify-content:space-between;padding:54px 64px;background:#2448b7;color:#fff}.login-art:before,.login-art:after{content:"";position:absolute;border:1px solid rgba(255,255,255,.13);border-radius:50%;width:700px;height:700px;left:-240px;bottom:-280px}.login-art:after{width:490px;height:490px;left:130px;bottom:-130px}.login-art-copy{position:relative;z-index:1;margin-bottom:70px}.login-art-copy .eyebrow{color:#a8c5ff}.login-art-copy h1{margin:20px 0 18px;font-size:clamp(45px,5vw,72px);line-height:1.18;letter-spacing:-.06em}.login-art-copy p{font-size:17px;line-height:1.9;color:#cedcff;max-width:400px}.art-envelope{position:absolute;right:-60px;top:26%;width:310px;height:220px;border:1px solid rgba(255,255,255,.42);border-radius:18px;transform:rotate(-13deg);box-shadow:0 30px 100px rgba(4,24,91,.22);background:rgba(255,255,255,.08);display:grid;place-items:center}.art-envelope:before,.art-envelope:after{content:"";position:absolute;top:0;width:185px;height:1px;background:rgba(255,255,255,.3)}.art-envelope:before{left:0;transform-origin:left;transform:rotate(34deg)}.art-envelope:after{right:0;transform-origin:right;transform:rotate(-34deg)}.art-envelope span{font-size:50px;color:#a7beff}.login-panel{display:grid;place-items:center;padding:48px;background:#fbfcfe}.login-card{width:min(390px,100%)}.login-card h2{font-size:37px;letter-spacing:-.05em;margin:12px 0}.login-card .muted{margin:0 0 40px}.login-card form{display:flex;flex-direction:column}.login-card label,.modal label{font-size:13px;font-weight:700;margin:0 0 10px}.login-card input,.modal input{height:50px;padding:0 15px;border:1px solid #dfe4ec;background:#fff;border-radius:10px;color:#172039;margin:0 0 22px;outline:none}.login-card input:focus,.modal input:focus{border-color:#4972e0;box-shadow:0 0 0 3px rgba(73,114,224,.12)}.primary-button{width:100%;height:51px;border:0;border-radius:10px;background:#345cdb;color:#fff;font-weight:700;display:flex;align-items:center;justify-content:center;gap:12px;box-shadow:0 8px 20px rgba(52,92,219,.2)}.primary-button:hover{background:#294fc6}.form-error{min-height:19px;margin:-3px 0 13px;color:#cb4450;font-size:13px}.login-footnote{font-size:12px;color:#a4acba;text-align:center;margin-top:28px}.mobile-brand{display:none}.app-shell{display:flex;height:100vh;min-height:600px}.sidebar{width:290px;min-width:260px;background:#f9fafc;border-right:1px solid #e7eaf0;display:flex;flex-direction:column}.sidebar-brand{height:99px;display:flex;align-items:center;gap:12px;padding:0 25px}.sidebar-brand strong{display:block;font-size:18px;letter-spacing:-.03em}.sidebar-brand small{font-size:10px;letter-spacing:.16em;color:#9aa7ba;font-weight:700}.sidebar-heading{padding:24px 24px 12px;display:flex;align-items:center;justify-content:space-between;color:#7c8799;font-size:12px;font-weight:700;letter-spacing:.08em}.icon-button{width:28px;height:28px;border:0;border-radius:8px;background:transparent;color:#65738f;font-size:22px;line-height:1}.icon-button:hover{background:#eaf0fc;color:#345cdb}.filter-wrap{margin:0 16px 12px;position:relative}.filter-wrap span{position:absolute;left:13px;top:7px;color:#9aa7b9;font-size:23px}.filter-wrap input{width:100%;height:39px;border:1px solid #e6eaf0;border-radius:9px;background:#fff;padding:0 12px 0 37px;font-size:12px}.mailbox-list{overflow:auto;flex:1;padding:2px 10px}.sidebar-empty{color:#a0a8b7;font-size:13px;text-align:center;margin:30px 0}.mailbox-item{width:100%;border:0;background:transparent;border-radius:11px;padding:11px 12px;display:flex;align-items:center;gap:10px;text-align:left;color:#28334a}.mailbox-item:hover{background:#edf1f8}.mailbox-item.active{background:#e7edfd;color:#244bc8}.mailbox-avatar{flex:none;width:34px;height:34px;border-radius:10px;background:#e6edfa;color:#5370ac;display:grid;place-items:center;font-size:13px;font-weight:700}.mailbox-item.active .mailbox-avatar{background:#d8e2ff;color:#355bd6}.mailbox-item-text{min-width:0;flex:1}.mailbox-item-text strong,.mailbox-item-text small{display:block;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.mailbox-item-text strong{font-size:13px}.mailbox-item-text small{font-size:11px;color:#9aa4b6;margin-top:2px}.inactive-dot{font-size:10px;color:#bf7b2b}.sidebar-footer{padding:17px 24px;border-top:1px solid #e7eaf0;display:flex;flex-direction:column;gap:8px}.sidebar-footer span{font-size:11px;color:#8994a7;overflow:hidden;text-overflow:ellipsis}.sidebar-footer button{background:none;border:0;padding:0;text-align:left;color:#435ed3;font-size:12px}.main-area{flex:1;min-width:0;display:flex;flex-direction:column}.topbar{height:120px;display:flex;align-items:center;justify-content:space-between;padding:22px 34px}.topbar h1{font-size:27px;letter-spacing:-.04em;margin:4px 0 0}.topbar-actions{display:flex;gap:12px;align-items:center}.domain-chip{font-size:12px;color:#8290a7;background:#e9edf4;padding:9px 12px;border-radius:7px}.ghost-button,.subtle-button{border:1px solid #dfe4ed;background:#fff;color:#61718e;border-radius:8px;padding:8px 12px;font-size:12px;font-weight:600}.ghost-button:hover,.subtle-button:hover{border-color:#b9c8ee;color:#3158d1}.content-grid{flex:1;min-height:0;display:grid;grid-template-columns:minmax(310px,38%) minmax(380px,1fr);margin:0 22px 22px;background:#fff;border:1px solid #e6eaf0;border-radius:14px;box-shadow:0 8px 30px rgba(38,57,93,.035);overflow:hidden}.message-panel{display:flex;flex-direction:column;min-width:0;border-right:1px solid #e8ebf1}.panel-header{min-height:94px;padding:25px 23px 18px;border-bottom:1px solid #edf0f4;display:flex;align-items:flex-start;justify-content:space-between;gap:8px}.panel-header h2{font-size:16px;margin:0 0 5px;overflow:hidden;text-overflow:ellipsis}.panel-header p{font-size:12px;color:#a0a8b6;margin:0;overflow:hidden;text-overflow:ellipsis}.message-list{overflow:auto;flex:1}.message-row{width:100%;text-align:left;display:block;border:0;border-bottom:1px solid #f0f2f5;background:#fff;padding:19px 22px;color:#24304a}.message-row:hover{background:#f7f9fd}.message-row.selected{background:#eef3ff;border-left:3px solid #3e66da;padding-left:19px}.message-row-top{display:flex;justify-content:space-between;gap:12px;align-items:center}.sender{font-size:13px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.message-row time{font-size:10px;color:#a3acbb;white-space:nowrap}.subject{font-size:13px;color:#50617a;margin-top:6px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.message-row-bottom{font-size:10px;color:#b5bdc9;margin-top:10px}.list-footer{padding:15px;text-align:center}.load-more{border:0;background:#edf2fc;color:#3e61c7;padding:8px 18px;border-radius:8px;font-size:12px}.end-note{font-size:11px;color:#b1b8c4}.detail-panel{overflow:auto;min-width:0;padding:37px 44px}.empty-state{display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;height:100%;min-height:270px;padding:30px;color:#a5aebe}.empty-icon{width:60px;height:60px;border-radius:18px;background:#f2f5fb;color:#7690cb;display:grid;place-items:center;font-size:28px;margin-bottom:20px}.empty-state h3{font-size:16px;color:#73829b;margin:0 0 7px}.empty-state p{font-size:12px;margin:0}.detail-kicker{display:block;margin-bottom:16px}.detail-subject{font-size:25px;letter-spacing:-.03em;line-height:1.5;margin:0 0 27px;overflow-wrap:anywhere}.detail-meta{font-size:12px;color:#7a879c;line-height:2.1;padding-bottom:22px;border-bottom:1px solid #edf0f4;overflow-wrap:anywhere}.detail-body{padding:25px 0;min-height:160px;color:#334058}.plain-body{white-space:pre-wrap;overflow-wrap:anywhere;font:13px/1.85 'DM Sans','Noto Sans SC',system-ui,sans-serif;margin:0}.html-body{width:100%;min-height:350px;border:0}.attachments{border-top:1px solid #edf0f4;padding:20px 0}.attachments h3{font-size:13px;margin:0 0 12px}.attachment-button{display:block;background:#f4f6fa;border:1px solid #e8ebf2;border-radius:8px;color:#455a82;padding:10px 13px;margin-bottom:8px;text-align:left;font-size:12px}.attachment-button:hover{background:#e9eefa}.mobile-back{display:none}.modal-scrim{position:fixed;inset:0;background:rgba(20,30,53,.48);display:grid;place-items:center;padding:20px;z-index:10}.modal{width:min(440px,100%);background:#fff;border-radius:16px;box-shadow:0 24px 80px rgba(9,22,51,.25);padding:30px}.modal-heading{display:flex;align-items:flex-start;justify-content:space-between}.modal-heading h2{margin:6px 0 8px;font-size:24px}.modal .muted{font-size:13px;margin:0 0 29px}.modal form{display:flex;flex-direction:column}.modal input{margin-bottom:19px}.optional{font-weight:400;color:#a3acbb}.address-input{display:flex;align-items:center;border:1px solid #dfe4ec;border-radius:10px;margin-bottom:20px}.address-input:focus-within{border-color:#4972e0;box-shadow:0 0 0 3px rgba(73,114,224,.12)}.address-input input{border:0;box-shadow:none!important;margin:0;flex:1;min-width:0}.address-input span{color:#8d99ab;font-size:12px;padding-right:12px;white-space:nowrap}.notice{position:fixed;top:max(20px,calc(env(safe-area-inset-top,0px) + 12px));left:50%;transform:translateX(-50%);width:max-content;max-width:calc(100vw - 32px);text-align:center;background:#213b88;color:white;border-radius:10px;padding:12px 18px;box-shadow:0 10px 32px rgba(18,31,67,.2);z-index:20;font-size:13px}.notice-error{background:#b74b56}
@media(max-width:1050px){.sidebar{width:245px;min-width:225px}.content-grid{grid-template-columns:minmax(270px,42%) minmax(320px,1fr)}.detail-panel{padding:28px}.topbar{padding:18px 24px}}
@media(max-width:760px){.login-screen{display:block}.login-art{display:none}.login-panel{min-height:100vh;padding:25px}.mobile-brand{display:flex;align-items:center;gap:10px;font-weight:700;margin-bottom:55px}.app-shell{min-height:100vh;height:auto;display:block}.sidebar{width:100%;min-width:0;border-right:0;border-bottom:1px solid #e7eaf0}.sidebar-brand{height:64px}.sidebar-heading{padding-top:10px}.mailbox-list{display:flex;overflow-x:auto;padding:3px 14px 12px;gap:5px}.mailbox-item{min-width:160px;width:auto}.mailbox-item-text small{max-width:150px}.sidebar-footer{display:none}.main-area{height:calc(100vh - 225px);min-height:480px}.topbar{height:80px}.topbar h1{font-size:22px}.domain-chip{display:none}.content-grid{display:block;position:relative;margin:0 10px 10px;height:calc(100% - 90px)}.message-panel{height:100%;border-right:0}.detail-panel{position:absolute;inset:0;background:#fff;display:none;padding:25px}.detail-panel:has(.detail-subject){display:block}.mobile-back{display:block;background:none;border:0;color:#3f65d5;padding:0;margin-bottom:24px}.panel-header{min-height:76px;padding:18px}.empty-state{min-height:240px}}
.mailbox-row{display:flex;align-items:center;gap:2px;border-radius:11px}
.mailbox-row .mailbox-item{min-width:0;flex:1}
.copy-mailbox-button{flex:none;width:30px;height:30px;margin-right:3px;border:0;border-radius:8px;background:transparent;color:#8d9bb3;font-size:19px;line-height:1}
.copy-mailbox-button:hover,.copy-mailbox-button:focus-visible{background:#e7edfd;color:#345cdb}
.inactive-section{margin-top:14px;padding-top:10px;border-top:1px solid #e7eaf0}
.inactive-heading{display:flex;align-items:center;justify-content:space-between;padding:3px 11px 8px;color:#9aa4b6;font-size:11px;font-weight:700}
.inactive-toggle{border:0;background:transparent;color:#435ed3;font-size:11px;font-weight:700;padding:5px}
.inactive-toggle:hover{text-decoration:underline}
.panel-mailbox-heading{min-width:0}
.mailbox-address-line{display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.copy-selected-button{border:0;background:transparent;color:#435ed3;font-size:11px;font-weight:700;padding:2px 0;white-space:nowrap}
.copy-selected-button:hover{text-decoration:underline}
@media(max-width:760px){.mailbox-row{min-width:188px;flex:none}.mailbox-row .mailbox-item{min-width:0}.inactive-section{margin:0;padding:0 0 0 10px;border-top:0;border-left:1px solid #e7eaf0;display:flex;align-items:center;gap:5px;flex:none}.inactive-heading{width:100px;min-width:100px;display:flex;flex-direction:column;align-items:flex-start;padding:0 4px}.inactive-items{display:flex;gap:5px}}
.address-hint{margin:-12px 0 20px;color:#9aa4b6;font-size:11px;line-height:1.5}