:root{--bg:#101318;--panel:#181d25;--panel2:#202733;--text:#eef2f7;--muted:#9ba7b6;--line:#313a48;--accent:#8fb7ff;--danger:#ff9a9a}*{box-sizing:border-box}body{margin:0;font-family:Inter,Arial,sans-serif;background:radial-gradient(circle at top left,#1d2735,#101318 45%);color:var(--text)}button,input{font:inherit}button{border:0;border-radius:12px;background:var(--accent);color:#07111f;padding:12px 16px;font-weight:700;cursor:pointer}button:hover{filter:brightness(1.08)}a{color:var(--accent)}.shell{width:min(1180px,calc(100% - 32px));margin:32px auto}.narrow{width:min(760px,calc(100% - 32px))}.hero{display:flex;justify-content:space-between;gap:16px;align-items:flex-start;margin-bottom:20px}.hero h1{font-size:44px;line-height:1;margin:8px 0}.badge{display:inline-block;background:#233148;border:1px solid #33445d;color:#cfe0ff;border-radius:999px;padding:6px 12px;margin:0}.muted,.hint{color:var(--muted)}.small-link{padding-top:12px}.card{background:linear-gradient(180deg,var(--panel),#141922);border:1px solid var(--line);border-radius:22px;padding:22px;box-shadow:0 16px 50px rgba(0,0,0,.25)}.address-card{margin-bottom:18px}.address-card label{display:block;color:var(--muted);margin-bottom:8px}.address-row,.custom-row{display:flex;gap:10px}.address-row input,.custom-row input{width:100%;border:1px solid var(--line);background:var(--panel2);color:var(--text);border-radius:14px;padding:14px 16px;outline:none}.custom-row{margin-top:10px}.grid{display:grid;grid-template-columns:430px 1fr;gap:18px}.toolbar{display:flex;justify-content:space-between;gap:12px;align-items:center}.toolbar h2{margin:0}.message-list{display:grid;gap:10px;margin-top:16px}.mail-item{width:100%;text-align:left;background:var(--panel2);border:1px solid var(--line);border-radius:16px;padding:14px;color:var(--text);cursor:pointer}.mail-item:hover{border-color:var(--accent)}.mail-subject{font-weight:800;margin-bottom:4px}.mail-meta{font-size:13px;color:var(--muted);margin-bottom:8px;word-break:break-word}.mail-preview{font-size:14px;color:#cbd4df}.empty{text-align:center;padding:50px 12px}.reader h2{margin-top:0}.reader-head{border-bottom:1px solid var(--line);padding-bottom:14px;margin-bottom:16px}.reader-body{background:#f8fafc;color:#111827;border-radius:16px;padding:18px;overflow:auto}.reader-body a{color:#0f5cc0}.danger{background:transparent;color:var(--danger);border:1px solid #653434;margin-top:14px}.notice{border:1px dashed var(--line);border-radius:16px;padding:16px;color:var(--muted);text-align:center}@media(max-width:900px){.grid{grid-template-columns:1fr}.hero{display:block}.hero h1{font-size:36px}.address-row,.custom-row{flex-direction:column}}