*{box-sizing:border-box}body{margin:0;background:#f3f6fb;color:#23344d;font:15px/1.6 system-ui,sans-serif}header{height:76px;background:white;border-bottom:1px solid #e1e7ef;padding:0 6%;display:flex;align-items:center;justify-content:space-between}header a{font-size:22px;font-weight:750}header span,footer{color:#738198}a{color:#305fd4;text-decoration:none}main{max-width:1280px;margin:40px auto;padding:0 20px;min-height:70vh}.card{background:white;border:1px solid #e1e7ef;border-radius:16px;padding:30px;min-width:0;box-shadow:0 8px 30px #20345a06}.narrow{max-width:480px;margin:65px auto}h1{font-size:28px;margin:0 0 20px}h2{font-size:18px}small{color:#738198}label{display:block;margin:18px 0}input:not([type=checkbox]),textarea{display:block;width:100%;border:1px solid #cdd6e4;border-radius:8px;padding:12px;font:inherit;margin-top:6px}button{border:0;border-radius:8px;background:#315fda;color:white;padding:12px 20px;font:inherit;cursor:pointer}.danger{background:#bb3549}.layout{display:grid;grid-template-columns:200px 1fr;gap:24px}aside a{display:block;padding:12px;border-radius:8px;margin:5px 0}.active{background:#e4ebff;font-weight:bold}aside form{margin-top:28px}.table-wrap{overflow:auto}table{width:100%;border-collapse:collapse;font-size:14px}td,th{padding:15px 10px;text-align:left;border-bottom:1px solid #edf0f5;overflow-wrap:anywhere}th{background:#f7f9fc}.search{display:flex;gap:10px;margin-bottom:24px}.search input{margin:0}.actions{display:flex;align-items:end;gap:16px;margin-top:20px;flex-wrap:wrap}.actions label{margin:0}.pager{margin-top:24px;display:flex;gap:16px;flex-wrap:wrap}.notice{background:#ecf1ff;padding:12px;border-radius:8px}pre{white-space:pre-wrap;overflow-wrap:anywhere;font:14px/1.8 monospace}.mail-row{display:flex;flex-direction:column;padding:20px 0;border-bottom:1px solid #eee}footer{text-align:center;padding:25px}@media(max-width:760px){.layout{grid-template-columns:1fr}aside{display:flex;gap:5px;flex-wrap:wrap}aside h2{width:100%}aside form{margin:5px}aside a{padding:8px}main{margin:20px auto;padding:0 12px}.card{padding:20px}.narrow{margin:30px auto}header{padding:0 20px}header span{display:none}h1{font-size:24px}}
/* Public homepage */
html{scroll-behavior:smooth;scroll-padding-top:24px}header .brand{display:flex;align-items:center;gap:8px;color:#20334e;font-size:20px;max-width:45%;overflow-wrap:anywhere}.brand-icon{display:inline-grid;place-items:center;width:36px;height:36px;background:#315fda;color:#fff;border-radius:10px;flex-shrink:0}header nav{display:flex;align-items:center;gap:28px}header nav a{font-size:14px;font-weight:500;color:#52617a}header nav .nav-query{padding:9px 16px;border:1px solid #d7dfed;border-radius:7px;color:#315fda}.home{color:#20334e}.hero{display:grid;grid-template-columns:1.2fr 1fr;gap:65px;align-items:center;padding:45px 15px 75px}.eyebrow{font-size:11px;letter-spacing:1.6px;font-weight:700;color:#526da5;line-height:1.8}.eyebrow>span{display:inline-block;width:7px;height:7px;background:#315fda;border-radius:50%;margin-right:8px}.hero h1{font-size:clamp(36px,4.5vw,58px);line-height:1.28;letter-spacing:-1.5px;font-weight:750;margin:24px 0}.hero-lead{font-size:17px;line-height:1.9;color:#66758c;max-width:480px}.hero-actions{display:flex;align-items:center;gap:24px;margin-top:30px}.button-link{display:inline-flex;align-items:center;justify-content:space-between;gap:22px;background:#315fda;color:white;border-radius:8px;padding:14px 22px;font-weight:600;box-shadow:0 6px 14px #315fda20}.button-link:hover,button:hover{background:#264ebc}.quiet-link{color:#62728a;font-size:13px}.hero-note{font-size:11px;color:#78869a;margin-top:18px}.inbox-illustration{border:1px solid #d8e1f0;border-radius:18px;background:#fff;box-shadow:0 24px 65px #315fda10;transform:rotate(-2deg);overflow:hidden}.illustration-bar{display:flex;align-items:center;gap:10px;padding:17px 22px;border-bottom:1px solid #e9eef6;font-size:13px}.illustration-logo{color:#315fda;font-size:22px}.demo-label{margin-left:auto;background:#f1f4f9;border-radius:4px;padding:3px 7px;font-size:10px;color:#8591a4}.illustration-body{padding:32px;background:linear-gradient(150deg,#fff 40%,#f0f5ff)}.received-dot{display:inline-block;color:#397a61;background:#eaf5ed;border-radius:20px;padding:3px 10px;font-size:11px}.illustration-body h2{font-size:31px;margin:18px 0 8px}.illustration-body>p{color:#8190a6;font-size:14px;line-height:1.9}.sample-mail{display:flex;align-items:center;gap:12px;margin:30px 0 35px;padding:16px;border:1px solid #e4eaf5;background:#fff;border-radius:10px;box-shadow:0 6px 18px #304a6a06}.sample-avatar{display:grid;place-items:center;width:36px;height:36px;border-radius:9px;background:#eef3ff;color:#315fda;font-size:21px}.sample-mail strong{font-size:13px}.sample-mail small{display:block;font-size:10px;margin-top:4px}.sample-check{margin-left:auto;color:#568773}.illustration-bottom{display:flex;justify-content:space-between;font-size:10px;color:#8593a8}.use-cases{display:grid;grid-template-columns:1.15fr 1fr 1fr 1fr;gap:35px;padding:42px 15px;border-top:1px solid #dce4f0;border-bottom:1px solid #dce4f0}.use-cases h2{font-size:24px;max-width:190px}.use-cases h3{font-size:16px;margin:10px 0}.use-cases p,.steps p,.section-intro>p:not(.eyebrow),.reading-note p,.faq-items p{font-size:14px;line-height:1.9;color:#718097}.guide-section{padding:75px 15px}.section-intro h2{font-size:30px;line-height:1.4;margin:15px 0}.steps{display:grid;grid-template-columns:repeat(3,1fr);list-style:none;padding:0;margin:34px 0 0;gap:35px}.steps li{border-top:2px solid #dce5f3;padding-top:20px}.steps li>span{font-size:13px;font-weight:bold;color:#315fda}.steps h3{font-size:19px}.steps a{font-size:13px}.reading-note{display:flex;align-items:flex-start;gap:24px;border:1px solid #dce5f3;border-radius:12px;background:#eaf0fa;padding:25px 30px;margin:0 15px}.reading-note>span{font-size:34px;color:#6689c7}.reading-note h2{font-size:18px;margin:0}.reading-note p{margin:8px 0 0}.faq-section{display:grid;grid-template-columns:1fr 1.6fr;gap:65px;padding:75px 15px}.faq-items details{border-bottom:1px solid #dce4f0;padding:19px 0}.faq-items details:first-child{padding-top:10px}.faq-items summary{font-weight:600;font-size:15px;cursor:pointer}.faq-items p{margin:12px 0 0}.home-bottom{display:flex;align-items:center;justify-content:space-between;gap:24px;padding:30px 40px;background:white;border:1px solid #dce4f0;border-radius:12px;margin:0 15px 35px}.home-bottom h2{font-size:24px;margin:10px 0}footer{border-top:1px solid #dce4f0;font-size:12px}footer>a{font-weight:650;color:#40516c}a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid #7198f7;outline-offset:4px}@media(max-width:900px){.hero{gap:30px}.hero-actions{align-items:flex-start;flex-direction:column;gap:15px}.use-cases{grid-template-columns:1fr 1fr}.faq-section{gap:30px}}@media(max-width:600px){header{height:auto;min-height:76px;gap:15px;padding:14px 18px;flex-wrap:wrap}header .brand{max-width:100%;font-size:18px}header nav{width:100%;gap:20px;justify-content:space-between}header nav a{font-size:12px}header nav .nav-query{padding:6px 10px}.hero{grid-template-columns:1fr;padding:25px 6px 40px;gap:30px}.hero h1{font-size:39px}.hero-lead{font-size:15px}.hero-actions{flex-direction:row;flex-wrap:wrap;align-items:center;gap:16px}.inbox-illustration{transform:none}.illustration-body{padding:24px}.use-cases{gap:20px;padding:30px 6px;grid-template-columns:1fr}.use-cases h2{max-width:none}.guide-section{padding:40px 6px}.steps{grid-template-columns:1fr;gap:20px}.steps h3{margin:10px 0}.section-intro h2{font-size:26px}.reading-note{margin:0;padding:22px 18px;gap:15px}.faq-section{grid-template-columns:1fr;padding:40px 6px;gap:18px}.home-bottom{align-items:flex-start;flex-direction:column;margin:0 0 25px;padding:25px}.home-bottom h2{font-size:22px}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
/* Public creation and mailbox login */
header nav{flex-wrap:wrap}.access-card h1{margin:8px 0 12px}.access-card>p{color:#66758c}.access-card select{display:block;width:100%;padding:12px;margin-top:6px;background:white;border:1px solid #cdd6e4;border-radius:8px;color:#23344d;font:inherit}.captcha-row{display:flex;align-items:center;gap:18px;margin:14px 0}.captcha-row img{border-radius:6px}.captcha-row a{font-size:13px}.wide-button{width:100%}.access-note{font-size:12px;color:#78869a;line-height:1.9}.access-switch{border-top:1px solid #edf0f5;padding-top:20px;margin-top:24px;font-size:14px}.inbox-heading{display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap}.inbox-heading h1{margin-bottom:8px}.inbox-heading p{overflow-wrap:anywhere}.inbox-tools{display:flex;align-items:center;gap:16px;flex-wrap:wrap}.empty-inbox{padding:40px 0;text-align:center;color:#718097}.empty-inbox h2{font-size:20px}.empty-inbox p{font-size:14px}@media(max-width:600px){header nav{gap:12px}.captcha-row{gap:10px}.captcha-row a{font-size:12px}.inbox-tools{gap:12px}.inbox-tools .button-link,.inbox-tools button{padding:10px 14px}.access-card input[readonly]{font-size:13px}}
.membership-summary{background:#eef3ff;padding:20px;border-radius:10px;margin-bottom:24px}.membership-summary p{margin:8px 0;font-size:14px}.api-panel{padding:20px;border:1px solid #dde5f3;border-radius:10px;margin-bottom:24px}.api-panel summary{cursor:pointer;font-weight:600}.plan-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}.plan-card{padding:24px;border:1px solid #dde5f3;border-radius:12px}.plan-card h2{font-size:24px}.card select{display:block;width:100%;padding:12px;margin-top:6px;border:1px solid #cdd6e4;border-radius:8px;font:inherit;background:#fff}.card{overflow-wrap:anywhere}.mail-address{font-size:18px;font-weight:600}.review-form{margin-top:12px;border-top:1px solid #edf0f5;padding-top:12px}@media(max-width:760px){.plan-grid{grid-template-columns:1fr}.api-panel{padding:14px}.api-panel input{font-size:12px}}