:root{
 --s1:8px;--s2:12px;--s3:20px;--s4:32px;--s5:48px;--s6:72px;--s7:112px;
 --h1:clamp(44px,6vw,64px);--h2:clamp(28px,4vw,36px);--h3:24px;--body:17px;--small:13px;
 --radius-control:8px;--radius-card:16px;--radius-window:24px;
 --paper:#ffffff;--ink:#1f1f1f;--muted:#44474a;--brand:#2f73d9;--brand-deep:#1f1f1f;--notice:#ffe5a8;--sky:#e1f1ff;--line:#d9dde1;--soft:#ffffff;--success:#16734a;--danger:#a62d2d;
 --shadow-window:0 24px 60px rgba(31,31,31,.12);--max:1180px;
}
[hidden]{display:none!important}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:96px}body{margin:0;background:var(--paper);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei","Noto Sans CJK SC",Arial,sans-serif;font-size:var(--body);line-height:1.65}body,button,input{font-stretch:normal}a{color:inherit;text-decoration:none}button,input{font:inherit}button{cursor:pointer}img,svg{display:block;max-width:100%}[hidden],.hidden{display:none!important}.wrap{width:min(var(--max),calc(100% - 48px));margin-inline:auto}.announcement{min-height:36px;padding:6px 24px;background:var(--notice);font-size:14px;font-weight:650;text-align:center}.announcement a{text-decoration:underline;text-underline-offset:3px}.site-header{position:sticky;top:0;z-index:30;background:rgba(255,255,255,.96);border-bottom:1px solid rgba(217,221,225,.7)}.header-inner{height:64px;display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:var(--s4)}.brand img{width:188px;height:auto}.primary-nav{display:flex;justify-content:center;align-items:center;gap:6px}.primary-nav a,.nav-actions>a,.lang-switch summary{min-height:44px;display:inline-flex;align-items:center;padding:0 12px;border-radius:var(--radius-control);font-size:14px;font-weight:650;white-space:nowrap}.primary-nav a:hover,.primary-nav a[aria-current]{background:var(--soft)}.nav-actions{display:flex;align-items:center;gap:var(--s1)}.header-login{border:1px solid var(--line)}.header-create,.button-primary{background:var(--ink);color:#fff}.header-create:hover,.button-primary:hover{background:#363636;color:#fff}.lang-switch{position:relative}.lang-switch summary{list-style:none;border:1px solid var(--line);cursor:pointer;padding-right:34px}.lang-switch summary::-webkit-details-marker{display:none}.lang-switch summary::after{content:"";position:absolute;right:14px;top:18px;width:7px;height:7px;border-right:1.5px solid currentColor;border-bottom:1.5px solid currentColor;transform:rotate(45deg)}.lang-menu{position:absolute;right:0;top:calc(100% + 8px);z-index:35;width:180px;padding:var(--s1);background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);box-shadow:0 12px 32px rgba(31,31,31,.12)}.lang-menu a{display:flex;align-items:center;justify-content:space-between;padding:9px 10px;border-radius:6px;font-size:14px}.lang-menu a:hover{background:var(--soft)}.lang-menu a[aria-current]::after{content:"";width:9px;height:5px;border-left:2px solid var(--brand);border-bottom:2px solid var(--brand);transform:rotate(-45deg)}.nav-toggle{display:none;width:44px;height:44px;padding:0;border:1px solid var(--line);border-radius:var(--radius-control);background:#fff;place-items:center}.nav-toggle span,.nav-toggle span::before,.nav-toggle span::after{display:block;width:18px;height:2px;background:var(--ink);content:""}.nav-toggle span::before{transform:translateY(-6px)}.nav-toggle span::after{transform:translateY(4px)}.mobile-drawer{display:none}.hero{position:relative;padding:var(--s6) 0 var(--s5);text-align:center;overflow:hidden}.hero::before{content:"";position:absolute;z-index:-1;width:640px;height:460px;left:50%;bottom:-240px;transform:translateX(-50%) rotate(-5deg);background:var(--sky);border-radius:42% 58% 60% 40%/55% 42% 58% 45%}.eyebrow{display:inline-flex;width:max-content;min-width:0;max-width:calc(100vw - 48px);align-items:center;gap:var(--s1);margin:0 0 var(--s3);padding:5px 10px;border-radius:999px;background:#eef5ff;color:var(--brand-deep);font-size:var(--small);font-weight:750}.hero .eyebrow{margin-left:auto;margin-right:auto}.eyebrow+h1,.eyebrow+h2,.page-kicker+h1{margin-top:0}.hero h1{max-width:950px;margin:0 auto;font-size:var(--h1);font-weight:900;line-height:1.125;letter-spacing:normal;text-wrap:balance}.hero h1 .accent{color:var(--brand)}.hero-lead{max-width:720px;margin:var(--s3) auto 0;color:var(--muted);font-size:18px;line-height:1.6}.hero-actions{display:flex;justify-content:center;gap:var(--s2);margin-top:var(--s4)}.button{min-height:44px;display:inline-flex;align-items:center;justify-content:center;gap:var(--s1);padding:0 20px;border-radius:var(--radius-control);font-weight:700}.button-secondary{background:#fff;color:var(--ink);border:1px solid var(--line)}.button-secondary:hover{background:var(--ink);color:#fff;border-color:var(--ink)}.proof{display:flex;justify-content:center;align-items:center;gap:var(--s2);margin:var(--s3) 0 0;color:var(--muted);font-size:var(--small)}.proof-stars{color:#805000;letter-spacing:2px}.mail-stage{position:relative;padding:var(--s3) 0 var(--s7)}.mail-stage::before{content:"";position:absolute;z-index:-1;inset:12% 5% 4%;background:var(--sky);border-radius:58% 42% 48% 52%/42% 54% 46% 58%;transform:rotate(1deg)}.mail-window{position:relative;min-height:720px;overflow:hidden;background:#fff;border:1px solid var(--line);border-radius:var(--radius-window);box-shadow:var(--shadow-window)}.window-bar{height:56px;display:flex;align-items:center;justify-content:space-between;padding:0 var(--s3);background:#fafafa;border-bottom:1px solid var(--line)}.window-dots{display:flex;gap:6px}.window-dots i{width:9px;height:9px;border-radius:50%;background:#c8ccd0}.window-label{font-size:var(--small);font-weight:750;color:var(--muted)}.address-deck{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:var(--s2);padding:var(--s3);background:var(--ink);color:#fff}.address-field{display:flex;min-width:0;height:52px;background:#303235;border-radius:var(--radius-control);overflow:hidden}.address-field input{width:100%;min-width:0;padding:0 16px;color:#fff;background:transparent;border:0;outline:0;font-weight:700}.address-field button{height:52px;padding:0 18px;border:0;border-left:1px solid #505357;background:#303235;color:#fff;font-weight:750}.address-field button:hover{background:#424549}.mail-tools{display:flex;align-items:center;gap:var(--s1);flex-wrap:wrap}.mail-tools button{min-height:44px;padding:0 13px;border:1px solid #56595d;border-radius:var(--radius-control);background:#303235;color:#fff;font-size:14px;font-weight:700}.mail-tools button:hover{background:#45484c}.timer{display:flex;align-items:center;gap:var(--s1);font-variant-numeric:tabular-nums;font-size:14px}.timer::before{content:"";width:8px;height:8px;border-radius:50%;background:#66d69a}.inbox-grid{height:590px;display:grid;grid-template-columns:minmax(280px,34%) minmax(0,66%)}.message-list-pane{min-width:0;border-right:1px solid var(--line);background:#f7f8f9}.list-head{height:58px;display:flex;align-items:center;justify-content:space-between;padding:0 var(--s3);border-bottom:1px solid var(--line)}.list-head h2{margin:0;font-size:20px}.list-head span{color:var(--muted);font-size:var(--small)}.refresh-icon{width:36px;height:36px;display:grid;place-items:center;padding:0;border:0;border-radius:50%;background:#fff;color:var(--ink)}.refresh-icon svg{width:18px}.refresh-icon.is-spinning svg{animation:spin .7s linear infinite}.message-list{height:532px;overflow:auto}.message-row{position:relative;width:100%;min-height:112px;display:grid;grid-template-columns:40px minmax(0,1fr) auto;gap:var(--s2);align-items:start;padding:16px 18px;border:0;border-bottom:1px solid var(--line);background:transparent;color:var(--ink);text-align:left}.message-row:hover,.message-row.is-selected{background:#fff}.message-row.is-selected::before{content:"";position:absolute;inset:0 auto 0 0;width:4px;background:var(--brand)}.message-row.is-unread::after{content:"";position:absolute;right:17px;top:43px;width:8px;height:8px;border-radius:50%;background:var(--brand)}.sender-avatar{width:40px;height:40px;display:grid;place-items:center;border-radius:12px;background:#fff;border:1px solid var(--line)}.sender-avatar svg{width:24px;height:24px}.message-copy{min-width:0;display:grid;gap:2px}.message-copy strong,.message-subject,.message-preview{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.message-copy strong{font-size:14px}.message-subject{font-weight:700;font-size:14px}.message-preview{color:var(--muted);font-size:13px}.message-time{padding-right:12px;color:var(--muted);font-size:12px;white-space:nowrap}.reader-pane{min-width:0;background:#fff}.reader-head{min-height:96px;display:grid;grid-template-columns:minmax(0,1fr) auto;gap:var(--s3);align-items:center;padding:20px 26px;border-bottom:1px solid var(--line)}.reader-head h3{margin:0;font-size:20px;line-height:1.35}.reader-meta{display:flex;align-items:center;gap:var(--s2);margin-top:6px;color:var(--muted);font-size:13px}.reader-actions{display:flex;gap:var(--s1)}.reader-actions button{width:40px;height:40px;display:grid;place-items:center;padding:0;border:1px solid var(--line);border-radius:var(--radius-control);background:#fff}.reader-close{display:none}.demo-note{margin:16px 26px 0;padding:9px 12px;border-radius:var(--radius-control);background:#fff5d7;color:#6b4a00;font-size:13px}.mail-frame{width:100%;height:430px;padding:24px 26px;border:0;background:#fff}.tool-pulse{animation:pulse 1s ease}.toast{position:fixed;z-index:80;left:50%;bottom:24px;transform:translate(-50%,18px);width:max-content;max-width:min(430px,calc(100% - 32px));padding:11px 16px;border-radius:12px;background:var(--ink);color:#fff;opacity:0;pointer-events:none;transition:.2s}.toast.show{opacity:1;transform:translate(-50%,0)}
.section{padding:var(--s7) 0}.section-head{max-width:760px;margin-bottom:var(--s5)}.section-head h2{margin:0;font-size:var(--h2);line-height:1.25}.section-intro{margin:var(--s3) 0 0;color:var(--muted)}.trust-strip{padding:var(--s4);border:1px solid #ceddeb;border-radius:var(--radius-card);background:#f4f9ff}.trust-strip ul{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:var(--s3);margin:0;padding:0;list-style:none}.trust-strip li{display:flex;align-items:center;gap:var(--s2);font-size:14px;font-weight:700}.trust-strip svg{width:24px;color:var(--brand);flex:none}.choice-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:var(--s3);align-items:start}.choice-card{min-width:0;padding:var(--s5);border-radius:var(--radius-window);background:var(--sky)}.choice-card.dark{background:var(--ink);color:#fff}.choice-card.dark .eyebrow,.choice-card .eyebrow{margin-bottom:var(--s3)}.choice-card h3{margin:0;font-size:var(--h3)}.choice-card p{margin:var(--s3) 0 0;color:var(--muted)}.choice-card.dark p{color:#d9dde1}.fact-list{margin:var(--s4) 0 0;padding:0;list-style:none}.fact-list li{display:grid;grid-template-columns:auto 1fr;gap:var(--s2);padding:12px 0}.fact-list li+li{border-top:1px solid rgba(100,110,120,.22)}.fact-list li::before{content:"";width:9px;height:5px;margin-top:8px;border-left:2px solid var(--brand);border-bottom:2px solid var(--brand);transform:rotate(-45deg)}.choice-card.dark .fact-list li::before{border-color:var(--notice)}.section-cta{padding-top:var(--s4)}.steps{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:var(--s3);counter-reset:step}.step{padding:var(--s4);border-radius:var(--radius-card);background:var(--soft);counter-increment:step}.step::before{content:"0" counter(step);display:block;margin-bottom:var(--s3);color:var(--brand);font-weight:900}.step h3{margin:0;font-size:21px}.step p{margin:var(--s2) 0 0;color:var(--muted)}.privacy-band{background:var(--ink);color:#fff}.privacy-grid{display:grid;grid-template-columns:minmax(0,.8fr) minmax(0,1.2fr);gap:var(--s6);align-items:start}.privacy-grid .section-head{margin:0}.privacy-grid .section-intro{color:#d5d7da}.boundary-table{overflow:hidden;border-radius:var(--radius-card);background:#2a2c2f}.boundary-row{display:grid;grid-template-columns:1fr 1.3fr;gap:var(--s3);padding:18px 20px}.boundary-row+.boundary-row{border-top:1px solid #44474c}.boundary-row strong{color:var(--notice)}.boundary-row span{color:#e9eaeb}.scene-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:var(--s3)}.scene-card{min-width:0;padding:var(--s4);border-radius:var(--radius-card);background:#fff;border:1px solid var(--line)}.scene-card svg{width:32px;color:var(--brand)}.scene-card h3{margin:var(--s3) 0 0;font-size:21px}.scene-card p{margin:var(--s2) 0 0;color:var(--muted)}.faq-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:var(--s3);align-items:start}.faq-grid details{padding:20px;border-radius:var(--radius-card);background:var(--soft)}.faq-grid summary{cursor:pointer;font-weight:800}.faq-grid p{margin:var(--s3) 0 0;color:var(--muted)}.pre-footer{padding:var(--s6);border-radius:var(--radius-window);background:var(--notice);text-align:center}.pre-footer h2{margin:0 auto;max-width:760px;font-size:var(--h2);line-height:1.25}.pre-footer p{max-width:650px;margin:var(--s3) auto 0}.pre-footer .hero-actions{margin-top:var(--s4)}.site-footer{margin-top:var(--s7);padding:var(--s6) 0 var(--s4);background:var(--ink);color:#fff}.footer-top{display:grid;grid-template-columns:1.35fr .65fr .65fr;gap:var(--s6)}.footer-brand img{width:190px;filter:none}.footer-brand p{max-width:430px;color:#cdd0d3}.footer-nav{display:grid;gap:var(--s2);align-content:start}.footer-nav strong{color:var(--notice);font-size:14px}.footer-nav a{color:#e5e6e7;font-size:14px}.footer-nav a:hover{text-decoration:underline}.footer-bottom{display:grid;grid-template-columns:1fr auto;gap:var(--s4);align-items:end;margin-top:var(--s6);padding-top:var(--s3);border-top:1px solid #414347;color:#bfc2c5;font-size:13px}.footer-languages{display:flex;gap:var(--s3);flex-wrap:wrap}.footer-languages a[aria-current]{color:var(--notice)}
/* Storyblok palette correction: white paper, cream notice, pale-blue support and ink controls only. */
.hero{background:#ffffff}.hero::before{background:#e1f1ff}.hero .eyebrow{background:#ffe5a8;color:#1f1f1f}.mail-stage::before{background:#e1f1ff}.mail-window{background:#ffffff}.window-bar{background:#1f1f1f;color:#ffffff}.trust-strip{background:#e1f1ff;border-color:#e1f1ff}.choice-card,.choice-card.dark{background:#e1f1ff;color:#1f1f1f}.choice-card.dark p,.choice-card.dark li{color:#44474a}.choice-card.dark .eyebrow{background:#ffffff;color:#2f73d9}.privacy-band{background:#e1f1ff;color:#1f1f1f}.privacy-band .section-intro{color:#44474a}.privacy-band .eyebrow{background:#ffe5a8!important;color:#1f1f1f!important}.boundary-table{background:#ffffff;color:#1f1f1f}.pre-footer{background:#e1f1ff;color:#1f1f1f}.pre-footer p{color:#44474a}.button-primary{background:#1f1f1f;color:#ffffff}.button-primary:hover{background:#2f73d9;color:#ffffff}.button-secondary{background:#ffffff;color:#1f1f1f;border-color:#d9dde1}.button-secondary:hover{background:#1f1f1f;color:#ffffff;border-color:#1f1f1f}
.demo-letter,.demo-mail{display:block}.demo-brand-header{display:flex;align-items:center;gap:12px;padding:20px;background:#2f73d9;color:#fff}.demo-brand-header svg{width:28px}.demo-verification-code{margin:20px;padding:16px;border-radius:10px;background:#e1f1ff;text-align:center;font-weight:800}.demo-fake-button{display:inline-flex;margin:0 20px 20px;padding:10px 16px;border-radius:8px;background:#1f1f1f;color:#fff;pointer-events:none}.demo-notice-card,.demo-code-block,.demo-notification-card{background:#fff;color:#1f1f1f}.demo-mail-brand,.demo-head{border-radius:16px;overflow:hidden}.mail-brand{background:#2f73d9;color:#fff}.demo-letter-head,.demo-brand{display:flex;align-items:center;min-height:72px;background:#2f73d9;color:#fff}.row-btn{padding:8px 10px;border:1px solid #777;border-radius:8px;background:#fff;color:#1f1f1f}.section-cta{display:flex;flex-wrap:wrap;gap:12px;padding-top:24px;margin-top:24px}.choice-card .section-cta,.identity-card .section-cta,.compare-card .section-cta,.card-cta,.compare-cta{padding-top:28px;margin-top:24px}@keyframes spin{to{transform:rotate(360deg)}}@keyframes pulse{50%{box-shadow:0 0 0 8px rgba(47,115,217,.15),var(--shadow-window)}}
.alias-composer:focus-within,.alias-field:focus-within{outline:2px solid #1f1f1f;outline-offset:2px}.alias-composer input:focus,.alias-field input:focus{outline:none}
/* Legibility repair pass: the palette correction flattened the dark panels to pale blue but kept text/border tokens tuned for dark surfaces. Re-ink them and give the header an actually visible current-page state. */
:root{--soft:#e7eef6}
.primary-nav a[aria-current]{background:#d5e8ff;color:#174a96;box-shadow:inset 0 -2px 0 #2f73d9}
.window-bar{border-bottom-color:#33363a}.window-label{color:#c7cdd4}
.address-field button{flex:none;white-space:nowrap}
.message-list-pane{display:flex;flex-direction:column}.list-head{flex:none;height:auto;min-height:58px;padding:12px var(--s3);gap:12px}.list-head>div{display:grid;gap:3px}.list-head h2{font-size:17px}.message-list{flex:1 1 auto;min-height:0;height:auto}
.choice-card.dark .fact-list li::before{border-color:#2f73d9}
.boundary-row strong{color:#174a96}.boundary-row span{color:#3c4046}.boundary-row+.boundary-row{border-top:1px solid #d3e4f2}
@media(max-width:980px){.primary-nav,.nav-actions .header-login,.nav-actions .header-create{display:none}.header-inner{grid-template-columns:1fr auto}.nav-toggle{display:grid}.mobile-drawer{position:absolute;left:24px;right:24px;top:64px;padding:var(--s2);background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);box-shadow:0 18px 40px rgba(31,31,31,.14)}.mobile-drawer:not([hidden]){display:grid}.mobile-drawer a{padding:12px;border-radius:var(--radius-control);font-weight:700;white-space:nowrap}.mobile-drawer a:hover{background:var(--soft)}.inbox-grid{grid-template-columns:42% 58%}.address-deck{grid-template-columns:1fr}.trust-strip ul{grid-template-columns:repeat(2,minmax(0,1fr))}.privacy-grid{grid-template-columns:1fr}.footer-top{grid-template-columns:1.3fr .7fr;gap:var(--s5)}.footer-brand{grid-column:1/-1}}
@media(max-width:760px){html,body{overflow-x:clip}.wrap{width:min(100% - 32px,var(--max))}.announcement{font-size:12px}.brand img{width:166px}.hero{padding-top:var(--s5)}.hero h1{font-size:clamp(40px,12vw,52px)}.hero-lead{font-size:16px}.hero-actions{flex-direction:column;align-items:stretch}.proof{align-items:flex-start}.mail-stage{padding-bottom:var(--s6)}.mail-stage::before{inset:8% 0 2%}.mail-window{min-height:0}.window-bar{height:48px}.address-deck{padding:var(--s2)}.address-field{width:100%}.address-field input{font-size:14px}.address-field button{padding:0 13px}.mail-tools{display:grid;grid-template-columns:1fr 1fr}.timer{grid-column:1/-1}.mail-tools button{width:100%}.inbox-grid{height:auto;display:block}.message-list-pane{border-right:0}.message-list{height:600px}.reader-pane{display:none}.reader-pane.is-open{position:fixed;z-index:70;inset:0;display:block;height:100dvh;overflow:hidden}.reader-head{min-height:104px;padding:18px 20px}.reader-close{display:grid!important}.demo-note{margin:12px 20px 0}.mail-frame{height:calc(100dvh - 150px);padding:20px}.section{padding:var(--s6) 0}.section-head{margin-bottom:var(--s4)}.choice-grid,.steps,.scene-grid,.faq-grid{grid-template-columns:minmax(0,1fr)}.choice-card{padding:var(--s4)}.trust-strip{padding:var(--s3)}.trust-strip ul{grid-template-columns:1fr}.boundary-row{grid-template-columns:1fr;gap:4px}.pre-footer{padding:var(--s5) var(--s3)}.footer-top{grid-template-columns:1fr 1fr}.footer-brand{grid-column:1/-1}.footer-bottom{grid-template-columns:1fr}.footer-languages{order:-1}}
@media(max-width:430px){.header-inner{height:60px}.nav-actions{gap:6px}.nav-actions .lang-switch summary,.lang-switch summary{width:44px;font-size:0;padding:0;overflow:hidden;justify-content:center}.nav-actions .lang-switch summary::before,.lang-switch summary::before{content:"";width:18px;height:18px;margin:auto;border:0;border-radius:0;background:currentColor;-webkit-mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23000' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'%3E%3Ccircle cx='12' cy='12' r='9'/%3E%3Cellipse cx='12' cy='12' rx='4' ry='9'/%3E%3Cpath d='M3 12h18'/%3E%3C/svg%3E") center/contain no-repeat;mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23000' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'%3E%3Ccircle cx='12' cy='12' r='9'/%3E%3Cellipse cx='12' cy='12' rx='4' ry='9'/%3E%3Cpath d='M3 12h18'/%3E%3C/svg%3E") center/contain no-repeat}.nav-actions .lang-switch summary::after,.lang-switch summary::after{display:none}.mobile-drawer{top:60px;left:16px;right:16px}.hero h1{font-size:40px;line-height:1.14}.message-row{grid-template-columns:36px minmax(0,1fr) auto;padding-inline:14px}.sender-avatar{width:36px;height:36px}.footer-top{grid-template-columns:1fr}.footer-nav{padding-top:var(--s3);border-top:1px solid #414347}}