:root{--brand:#2563eb;--brand-dark:#1d4ed8;--ink:#0f172a;--muted:#64748b;--border:#e5e7eb;--soft:#f7f9fc;--success:#16a34a;--warning:#ea580c;--danger:#dc2626;--shadow:0 8px 24px rgba(15,23,42,.08);font-family:Inter,"PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;color:var(--ink);background:#fff;font-synthesis:none;letter-spacing:0}*{box-sizing:border-box}html,body{margin:0;min-height:100%;background:#fff}body{font-size:15px}button,input,select{font:inherit;letter-spacing:0}button,a{touch-action:manipulation}button{cursor:pointer}a{color:inherit;text-decoration:none}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.site-header{height:72px;border-bottom:1px solid var(--border);display:flex;align-items:center;padding:0 max(32px,calc((100vw - 1440px)/2));justify-content:space-between;position:relative;background:#fff;z-index:20}.brand{display:flex;align-items:center;gap:12px;font-size:23px;font-weight:750}.brand-mark{width:42px;height:36px;color:var(--brand);display:grid;place-items:center;position:relative}.brand-mark svg{width:38px;height:38px;stroke-width:1.8}.brand-mark:before,.brand-mark:after{content:"";position:absolute;height:2px;background:var(--brand);left:-3px;border-radius:2px}.brand-mark:before{width:12px;top:12px}.brand-mark:after{width:7px;top:21px}.desktop-nav{display:flex;gap:52px;font-weight:650}.desktop-nav a:hover{color:var(--brand)}.icon-btn{border:0;background:transparent;width:44px;height:44px;display:grid;place-items:center;color:var(--ink)}.mobile-menu-button,.mobile-menu{display:none}main{width:min(1440px,calc(100% - 64px));margin:0 auto}.create-section{text-align:center;padding:30px 0 24px}.service-pill{display:inline-flex;align-items:center;gap:9px;padding:8px 18px;background:#effaf3;border:1px solid #d3f1dd;border-radius:999px;color:var(--success);font-size:14px}.service-pill span,.waiting b{width:8px;height:8px;background:var(--success);border-radius:50%}.service-pill.is-degraded{color:var(--warning);background:#fff7ed;border-color:#fed7aa}.service-pill.is-degraded span{background:var(--warning)}.create-section h1{margin:24px 0 7px;font-size:34px;line-height:1.25;font-weight:800}.hero-copy{margin:0;color:var(--muted);font-size:17px}.create-form{display:flex;justify-content:center;gap:16px;margin:24px auto 0;max-width:840px}.address-field{width:620px;height:64px;border:1px solid #d7dce4;border-radius:8px;display:grid;grid-template-columns:minmax(0,1fr) 220px;overflow:hidden;background:#fff}.address-field input,.address-field select{border:0;background:#fff;min-width:0;outline:0}.address-field input{padding:0 24px;font-size:17px}.address-field select{border-left:1px solid var(--border);padding:0 20px;color:#253047;font-weight:520}.address-field:focus-within{border-color:var(--brand);box-shadow:0 0 0 3px rgba(37,99,235,.1)}.primary-btn,.danger-btn,.outline-btn,.danger-outline{min-height:44px;border-radius:7px;padding:0 20px;display:inline-flex;align-items:center;justify-content:center;gap:8px;font-weight:650;border:1px solid transparent}.primary-btn{background:var(--brand);color:#fff}.primary-btn:hover{background:var(--brand-dark)}.primary-btn:disabled{opacity:.55;cursor:not-allowed}.create-button{height:64px;width:174px;font-size:17px}.outline-btn{background:#fff;border-color:#8ab4ff;color:#1260d6}.danger-outline{background:#fff;border-color:#f0a0a8;color:var(--danger)}.danger-btn{background:var(--danger);color:#fff}.outline-btn svg,.danger-outline svg,.primary-btn svg{width:18px}.button-loader{display:none;width:18px;height:18px;border:2px solid rgba(255,255,255,.5);border-top-color:#fff;border-radius:50%;animation:spin .7s linear infinite}.is-loading .button-loader{display:block}.is-loading span{opacity:.8}@keyframes spin{to{transform:rotate(360deg)}}.form-error{color:var(--danger);min-height:20px;margin:8px 0 -8px;font-size:14px}.feature-row{display:flex;gap:72px;justify-content:center;margin-top:22px;color:var(--muted)}.feature-row span{display:flex;align-items:center;gap:9px}.feature-row svg{width:21px}.steps-section{border:1px solid var(--border);border-radius:10px;background:#fbfcfe;padding:24px 44px 30px}.steps-section>h2{text-align:center;margin:0 0 26px;font-size:21px}.steps-grid{display:grid;grid-template-columns:repeat(3,1fr)}.steps-grid article{display:grid;grid-template-columns:30px 72px 1fr;align-items:center;gap:20px;padding:0 38px;position:relative;text-align:left}.steps-grid article+article{border-left:1px solid var(--border)}.steps-grid b{align-self:start;margin-top:4px;width:24px;height:24px;background:var(--brand);color:#fff;border-radius:50%;display:grid;place-items:center;font-size:13px}.step-icon{width:66px;height:66px;border:1px solid var(--border);border-radius:9px;display:grid;place-items:center;color:var(--brand);background:#fff}.step-icon svg{width:30px;height:30px}.steps-grid h3{margin:0 0 7px;font-size:16px}.steps-grid p{margin:0;color:var(--muted);line-height:1.6;font-size:14px}.privacy-note{display:flex;justify-content:center;align-items:center;gap:9px;color:var(--muted);margin:32px 0 52px}.privacy-note svg{width:19px}.inbox-panel{border:1px solid var(--border);border-radius:10px;box-shadow:var(--shadow);overflow:hidden;margin:0 0 40px}.inbox-toolbar{min-height:74px;display:flex;align-items:center;justify-content:space-between;padding:14px 20px 14px 32px;border-bottom:1px solid var(--border)}.address-status{display:flex;align-items:center;gap:26px;min-width:0}.address-status h2{margin:0;font-size:22px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.waiting{display:flex;align-items:center;gap:9px;color:var(--success);white-space:nowrap}.inbox-actions{display:flex;align-items:center;gap:16px}.remaining{color:var(--muted);white-space:nowrap}.remaining strong{color:var(--success);font-size:17px;margin-left:7px}.mail-layout{display:grid;grid-template-columns:38% 62%;height:410px}.message-list-pane{border-right:1px solid var(--border);overflow:auto;position:relative}.message-list-item{width:100%;min-height:84px;border:0;border-bottom:1px solid var(--border);background:#fff;padding:14px 18px;display:grid;grid-template-columns:48px minmax(0,1fr) auto;gap:14px;text-align:left;color:var(--ink);position:relative}.message-list-item:hover{background:#f9fbff}.message-list-item.is-active{background:#f0f6ff}.message-list-item.is-active:before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--brand)}.message-list-item .mail-icon{width:42px;height:42px;border-radius:50%;background:#f1f5f9;color:var(--muted);display:grid;place-items:center}.message-list-item.is-active .mail-icon{background:#e7f0ff;color:var(--brand)}.message-list-item svg{width:22px}.message-list-item h3{font-size:15px;margin:0 0 4px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.message-list-item p{margin:0;color:var(--muted);font-size:13px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.message-list-item strong{display:block;margin-top:5px;color:var(--brand);font-size:17px;letter-spacing:2px}.message-list-item time{font-size:12px;color:var(--muted);white-space:nowrap}.empty-mail,.message-placeholder{height:100%;display:flex;flex-direction:column;align-items:center;justify-content:center;color:var(--muted);text-align:center}.empty-mail span,.message-placeholder span{width:58px;height:58px;background:#f3f6fa;border-radius:50%;display:grid;place-items:center;color:var(--brand)}.empty-mail h3,.message-placeholder h3{color:var(--ink);font-size:16px;margin:15px 0 5px}.empty-mail p{margin:0}.message-content-pane{overflow:auto;background:#fff}.message-detail>header{min-height:88px;border-bottom:1px solid var(--border);display:grid;grid-template-columns:48px minmax(0,1fr) auto;gap:14px;align-items:center;padding:14px 26px}.sender-icon{width:44px;height:44px;border-radius:50%;background:#e9f2ff;color:var(--brand);display:grid;place-items:center}.sender-icon svg{width:22px}.message-detail h3{font-size:19px;margin:0 0 8px}.message-detail header p{margin:0;color:var(--muted);font-size:13px}.message-detail time{color:var(--muted);font-size:13px}.message-body-wrap{padding:20px 28px}.code-box{border:1px solid var(--border);border-radius:7px;padding:12px;text-align:center;margin:0 auto 20px;max-width:560px;background:#fff}.code-box>span{display:block;color:var(--muted);font-size:12px}.code-box strong{display:block;color:var(--brand);font-size:36px;letter-spacing:8px;margin:7px 0}.code-box .primary-btn{margin:auto}.safe-html{line-height:1.7;overflow-wrap:anywhere}.safe-html img{display:none}.safe-html a{color:var(--brand);text-decoration:underline}.plain-text{font:inherit;line-height:1.7;white-space:pre-wrap;overflow-wrap:anywhere;margin:0}.mobile-tabs,.mobile-session-actions{display:none}.load-more{width:100%;height:42px;border:0;background:#fff;color:var(--brand)}.expired-panel{text-align:center;border:1px solid var(--border);border-radius:10px;padding:60px 24px;margin:30px auto;max-width:720px}.expired-panel>span{width:72px;height:72px;background:#fff3f3;color:var(--danger);display:grid;place-items:center;border-radius:50%;margin:auto}.expired-panel h2{margin:18px 0 8px}.expired-panel p{color:var(--muted);margin:0 0 24px}footer{border-top:1px solid var(--border);min-height:68px;display:flex;justify-content:center;align-items:center;gap:56px;color:var(--muted);font-size:13px}dialog{border:0;border-radius:10px;padding:0;box-shadow:0 24px 70px rgba(15,23,42,.22);max-width:420px;width:calc(100% - 32px)}dialog::backdrop{background:rgba(15,23,42,.38)}dialog form{padding:28px;text-align:center}.dialog-icon{width:52px;height:52px;border-radius:50%;background:#fff1f2;color:var(--danger);display:grid;place-items:center;margin:auto}.dialog-icon svg{width:25px}dialog h2{font-size:19px;margin:15px 0 8px}dialog p{color:var(--muted);line-height:1.6;margin:0 0 22px}dialog form>div:last-child{display:flex;gap:12px}dialog form>div:last-child button{flex:1}.toast-region{position:fixed;right:24px;bottom:24px;z-index:100;display:grid;gap:10px}.toast{min-width:300px;max-width:440px;background:#fff;border:1px solid var(--border);border-left:5px solid var(--success);box-shadow:0 12px 32px rgba(15,23,42,.16);border-radius:8px;padding:15px 18px;display:flex;align-items:center;gap:12px;font-weight:600;animation:toast-in .2s ease}.toast.error{border-left-color:var(--danger)}.toast svg{color:var(--success)}.toast.error svg{color:var(--danger)}@keyframes toast-in{from{opacity:0;transform:translateY(8px)}}body.has-inbox .create-section{padding:18px 0 14px}body.has-inbox .create-section h1{font-size:30px;margin:14px 0 4px}body.has-inbox .create-form{margin-top:14px}body.has-inbox .feature-row{margin-top:14px}body.has-inbox .steps-section,body.has-inbox .privacy-note,body.has-inbox footer{display:none}.desktop-only-flex{display:inline-flex}
@media(max-width:767px){body{font-size:15px}.site-header{height:70px;padding:0 20px}.brand{font-size:23px}.desktop-nav{display:none}.mobile-menu-button{display:grid}.mobile-menu{display:none;position:absolute;top:69px;left:0;right:0;background:#fff;border-bottom:1px solid var(--border);box-shadow:var(--shadow);padding:10px 20px}.mobile-menu.is-open{display:grid}.mobile-menu a{padding:13px 4px;border-bottom:1px solid var(--border)}main{width:100%;margin:0}.create-section{padding:52px 22px 30px}.service-pill{font-size:14px}.create-section h1{font-size:30px;line-height:1.35;margin:28px 0 14px;white-space:nowrap}.hero-copy{font-size:17px}.create-form{display:block;margin-top:28px}.address-field{width:100%;height:62px;grid-template-columns:minmax(0,1fr) minmax(150px,43%)}.address-field input{padding:0 18px}.address-field select{padding:0 12px;font-size:16px}.create-button{width:100%;height:58px;margin-top:16px}.feature-row{gap:0;justify-content:space-between;margin:24px 18px 0}.feature-row span{gap:7px;white-space:nowrap}.steps-section{margin:16px 22px 0;padding:25px 24px;text-align:left}.steps-section>h2{text-align:left;font-size:23px;margin-bottom:8px}.steps-grid{display:block}.steps-grid article{grid-template-columns:70px 1fr;padding:22px 0;gap:18px}.steps-grid article+article{border-left:0;border-top:1px solid var(--border)}.steps-grid b{width:64px;height:64px;border-radius:10px;background:#f0f6ff;color:var(--brand);font-size:30px;align-self:center}.step-icon{display:none}.steps-grid h3{font-size:18px;margin-bottom:7px}.steps-grid p{font-size:15px}.privacy-note{margin:36px 22px 50px;text-align:center;font-size:14px}.inbox-panel{margin:40px 18px 24px;border:0;box-shadow:none;overflow:visible}.inbox-toolbar{border:1px solid var(--border);border-radius:9px;padding:18px;display:block}.address-status{display:block}.address-status h2{font-size:19px;margin-bottom:22px}.waiting{display:inline-flex}.inbox-actions{margin-top:-28px;justify-content:flex-end;gap:10px}.remaining{margin-right:auto}.inbox-actions .outline-btn{width:46px;padding:0}.inbox-actions .outline-btn span{display:none}.desktop-only,.desktop-only-flex{display:none!important}.mobile-tabs{display:flex;border-bottom:1px solid var(--border);margin-top:22px;height:58px}.mobile-tabs button{flex:1;border:0;background:#fff;color:var(--muted);font-weight:650;font-size:16px;position:relative}.mobile-tabs button[aria-selected=true]{color:var(--brand)}.mobile-tabs button[aria-selected=true]:after{content:"";position:absolute;left:18%;right:18%;bottom:-1px;height:3px;background:var(--brand)}.mail-layout{display:block;height:auto}.message-list-pane,.message-content-pane{border:0;min-height:430px;overflow:visible}.message-content-pane[hidden],.message-list-pane[hidden]{display:none}.message-list-item{border:1px solid var(--border);border-radius:8px;margin:12px 0;min-height:86px}.message-detail{border:1px solid var(--border);border-radius:9px;overflow:hidden;margin-top:18px}.message-detail>header{grid-template-columns:50px minmax(0,1fr) auto;padding:16px}.message-detail h3{font-size:18px}.message-body-wrap{padding:24px}.code-box{border:0;padding:10px 0;margin-bottom:24px}.code-box strong{border:1px solid var(--border);border-radius:8px;padding:20px 6px;font-size:36px;margin:13px 0}.code-box .primary-btn{width:100%;height:54px;font-size:17px}.mobile-session-actions{display:flex;border:1px solid var(--border);border-radius:8px;margin-top:20px;height:60px}.mobile-session-actions button{flex:1;border:0;background:#fff;display:flex;gap:7px;align-items:center;justify-content:center;color:var(--ink);font-weight:600}.mobile-session-actions button+button{border-left:1px solid var(--border)}.mobile-session-actions .danger-text{color:var(--danger)}.mobile-session-actions svg{width:19px}body.has-inbox .create-section,body.has-inbox .steps-section,body.has-inbox .privacy-note,body.has-inbox footer{display:none}body.has-inbox .inbox-panel{margin-top:40px}.expired-panel{border:0;margin:40px 20px}footer{gap:20px;flex-wrap:wrap;padding:22px}.toast-region{left:24px;right:24px;bottom:20px}.toast{min-width:0;width:100%}}
@media(max-width:389px){.create-section{padding-left:16px;padding-right:16px}.create-section h1{font-size:27px;white-space:normal}.hero-copy{font-size:16px}.address-field{grid-template-columns:minmax(0,1fr) minmax(130px,44%)}.feature-row{margin-left:0;margin-right:0;font-size:14px}.steps-section{margin-left:16px;margin-right:16px}.inbox-panel{margin-left:14px;margin-right:14px}.inbox-toolbar{padding:16px}.address-status h2{max-width:100%;font-size:17px}.remaining{font-size:13px}.inbox-actions{gap:7px}.message-body-wrap{padding:18px}.code-box strong{font-size:32px;letter-spacing:5px}.mobile-session-actions button{font-size:13px;gap:4px}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation-duration:.01ms!important;scroll-behavior:auto!important}}
:focus-visible{outline:3px solid rgba(37,99,235,.35);outline-offset:2px}


[hidden]{display:none!important}
@media(max-width:767px){.inbox-toolbar{display:grid;grid-template-columns:minmax(0,1fr) auto 46px 46px;column-gap:9px;row-gap:15px;align-items:center}.inbox-toolbar .address-status,.inbox-toolbar .inbox-actions{display:contents}.address-status h2{grid-column:1/-1;margin:0}.waiting{grid-column:1}.remaining{grid-column:2;margin:0}.inbox-actions{margin-top:0}.inbox-actions .outline-btn{grid-row:2}.toast-region{bottom:92px}}