/* MaskSend verdant design system: one geometric sans family across every language. */
:root{--night:#071410;--night-2:#0c221c;--panel:#12352b;--paper:#f3faf6;--white:#fff;--green:#3ee0a8;--lime:#c8f6df;--blue:#006cfa;--muted:#b4c8c0;--ink:#0c241c;--danger:#ffb5ad;--line:rgba(184,196,194,.24);--solid-line:#2a4d42;--max:1200px;--font:Inter,"Noto Sans SC","Hiragino Kaku Gothic ProN","Microsoft YaHei",system-ui,sans-serif;--mono:"SFMono-Regular",Consolas,monospace}
*{box-sizing:border-box}[hidden]{display:none!important}html{scroll-behavior:smooth;scroll-padding-top:112px;background:var(--night)}body{margin:0;overflow-x:hidden;background:var(--night);color:var(--white);font:16px/1.7 var(--font)}body::before{content:"";position:fixed;inset:0;z-index:-1;pointer-events:none;background-image:linear-gradient(rgba(184,196,194,.055) 1px,transparent 1px),linear-gradient(90deg,rgba(184,196,194,.055) 1px,transparent 1px);background-size:48px 48px;mask-image:linear-gradient(to bottom,#000 0,transparent 78%)}a{color:inherit;text-decoration:none}img,svg{display:block;max-width:100%}button,input,textarea{font:inherit}button{cursor:pointer}button:disabled{cursor:not-allowed;opacity:.55}.wrap{width:min(var(--max),calc(100% - 40px));margin-inline:auto}.announcement{min-height:36px;display:grid;place-items:center;padding:6px 20px;background:var(--green);color:#05291f;font:600 13px/1.5 var(--font);text-align:center}.announcement a:hover{text-decoration:underline}.site-header{position:sticky;top:0;z-index:20;height:64px;background:rgba(0,30,43,.97);border-bottom:1px solid var(--line);backdrop-filter:blur(14px)}.header-row{height:100%;display:flex;align-items:center;gap:16px;position:relative}.brand{display:inline-flex;align-items:center;gap:9px;min-width:max-content;font-weight:720;letter-spacing:-.02em}.brand img{width:34px;height:34px}.main-nav{display:flex;align-items:center;gap:5px;margin-left:auto}.main-nav>a{position:relative;padding:17px 9px;color:#d7e1df;font-size:13px;white-space:nowrap;border-radius:5px}.main-nav>a:hover{background:rgba(184,196,194,.08);color:var(--white)}.main-nav>a[aria-current="page"]{background:transparent;color:var(--white)}.main-nav>a[aria-current="page"]::after{content:"";position:absolute;left:11px;right:11px;bottom:6px;height:2px;border-radius:2px;background:var(--green);box-shadow:0 0 12px rgba(62,224,168,.62)}.nav-actions{display:flex;align-items:center;gap:8px}.lang-switch{position:relative}.lang-toggle,.nav-login{min-height:38px;padding:8px 10px;border:1px solid var(--line);border-radius:5px;background:transparent;color:var(--white);white-space:nowrap;font-size:13px}.lang-toggle{display:flex;align-items:center;gap:9px}.lang-toggle::after,.filter-trigger::after{content:"";width:7px;height:7px;border-right:1.5px solid currentColor;border-bottom:1.5px solid currentColor;transform:rotate(45deg) translateY(-2px)}.lang-toggle:hover,.nav-login:hover{background:#164033;color:var(--white)}.lang-menu{position:absolute;right:0;top:calc(100% + 10px);z-index:25;width:180px;padding:7px;background:#0e2a22;border:1px solid var(--solid-line);border-radius:7px;box-shadow:0 18px 42px rgba(0,0,0,.35)}.lang-menu[hidden],.mobile-nav[hidden]{display:none}.lang-menu a{display:flex;align-items:center;justify-content:space-between;padding:8px 10px;border-radius:4px;color:#e8efed;font-size:14px}.lang-menu a:hover,.lang-menu a[aria-current]{background:#1b4a3a;color:var(--white)}.lang-menu a[aria-current]::after{content:"";width:10px;height:5px;border-left:2px solid var(--green);border-bottom:2px solid var(--green);transform:rotate(-45deg)}.header-cta{min-height:38px;padding:8px 13px;border:1px solid var(--green);border-radius:5px;background:var(--green);color:#063326;font-size:13px;font-weight:750;white-space:nowrap}.header-cta:hover{background:var(--lime);border-color:var(--lime);color:#05291f}.nav-toggle{display:none;width:40px;height:40px;padding:0;border:1px solid var(--line);border-radius:5px;background:transparent}.nav-toggle span,.nav-toggle::before,.nav-toggle::after{content:"";display:block;width:18px;height:1.5px;margin:5px auto;background:var(--white)}.mobile-nav{position:fixed;left:20px;right:20px;top:108px;z-index:24;padding:10px;background:#0e2a22;border:1px solid var(--solid-line);border-radius:7px;box-shadow:0 24px 56px rgba(0,0,0,.42)}.mobile-nav a{display:block;padding:10px 12px;border-radius:4px}.mobile-nav a+a{border-top:1px solid #2a4d42}.mobile-nav a:hover,.mobile-nav a[aria-current]{background:#1b4a3a;color:var(--white)}
h1,h2,h3,p{margin:0}h1,h2,h3{line-height:1.12;letter-spacing:-.035em}h1{font-size:clamp(42px,5.2vw,64px);font-weight:480}h2{font-size:clamp(32px,4vw,48px);font-weight:520}h3{font-size:21px;font-weight:650}.hero{padding:84px 0 0;text-align:center}.hero::before{content:"";position:absolute;left:50%;top:150px;width:min(900px,90vw);height:460px;transform:translateX(-50%);z-index:-1;background:radial-gradient(ellipse,rgba(62,224,168,.16),transparent 68%);filter:blur(18px)}.hero-pills,.hero-actions,.mail-tools,.button-row{display:flex;align-items:center;justify-content:center;flex-wrap:wrap;gap:10px}.eyebrow,.status-pill,.mail-kicker{display:flex;width:max-content;min-width:0;max-width:calc(100vw - 40px);align-items:center;border-radius:999px;font:600 11px/1.4 var(--mono);letter-spacing:.09em;text-transform:uppercase}.eyebrow{padding:6px 9px;background:rgba(62,224,168,.1);color:var(--green);border:1px solid rgba(62,224,168,.3)}.status-pill{padding:6px 9px;background:rgba(200,246,223,.09);color:var(--lime);border:1px solid rgba(200,246,223,.23)}.eyebrow+h1,.eyebrow+h2,.hero-pills+h1{margin-top:18px}.hero h1{max-width:900px;margin-inline:auto}.hero h1 span{display:block;color:var(--green)}.hero-sub{max-width:700px;margin:22px auto 0;color:#d0dcda}.hero-actions{margin-top:30px}.button-primary,.button-secondary,.tool-button,.copy-button,.button-danger,.button-quiet{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:9px 17px;border-radius:5px;font-weight:700;border:1px solid transparent}.button-primary,.copy-button{background:var(--green);border-color:var(--green);color:#063326}.button-primary:hover,.copy-button:hover{background:var(--lime);border-color:var(--lime);color:#05291f}.button-secondary,.tool-button,.button-quiet{background:#0e2a22;border-color:var(--solid-line);color:var(--white)}.button-secondary:hover,.tool-button:hover,.button-quiet:hover{background:#1b4a3a;border-color:#5f8174;color:var(--white)}.button-danger{background:#5a2827;border-color:#95514c;color:#fff}.button-danger:hover{background:#71312e;color:#fff}.button-row{justify-content:flex-start;margin-top:24px}.mailbox-stage{margin-top:58px;text-align:left;border:1px solid rgba(184,196,194,.35);border-radius:9px 9px 0 0;background:#0c221c;box-shadow:0 -15px 80px rgba(62,224,168,.13);overflow:hidden}.tool-strip{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:16px;border-bottom:1px solid var(--solid-line)}.address-field,.composer{display:flex;align-items:center;flex:1;min-width:0;border:1px solid #4d6e62;border-radius:6px;background:#fff;overflow:hidden}.address-field:focus-within,.composer:focus-within{border-color:#071410;outline:2px solid #071410;outline-offset:1px}.address-field input,.composer input{flex:1;min-width:0;height:48px;padding:11px 14px;border:0;outline:none;background:#fff;color:var(--ink)}.address-field input:focus,.composer input:focus{outline:none}.address-field .copy-button{margin-right:4px;min-height:40px}.mail-tools{justify-content:flex-end}.timer{font:650 14px var(--mono);color:var(--lime)}.tool-button{min-height:40px;padding:7px 11px;font-size:13px}.inbox-grid{height:760px;display:grid;grid-template-columns:minmax(280px,35%) minmax(0,65%)}.mail-list-panel{min-width:0;border-right:1px solid var(--solid-line);background:#0a1f19}.inbox-bar{height:58px;padding:0 18px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--solid-line)}.mail-list{height:calc(100% - 58px);overflow:auto}.mail-row{width:100%;display:grid;grid-template-columns:42px minmax(0,1fr) auto;gap:11px;padding:15px 16px;border:0;border-bottom:1px solid #2a4d42;background:transparent;color:var(--white);text-align:left}.mail-row:hover,.mail-row.is-active{background:#154032;color:var(--white)}.mail-row.is-active{box-shadow:inset 3px 0 var(--green)}.sender-avatar{width:40px;height:40px;display:grid;place-items:center;border-radius:50%;background:#c8f5dd;color:#0d3d2c;font:800 12px var(--font)}.mail-copy{min-width:0}.mail-sender,.mail-subject,.mail-preview{display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.mail-sender{font-weight:700}.mail-subject{color:#ecf2f1}.mail-preview,.mail-time{color:var(--muted);font-size:12px}.unread-dot::before{content:"";display:inline-block;width:7px;height:7px;margin-right:8px;border-radius:50%;background:var(--green);vertical-align:middle}.reader-pane{min-width:0;overflow:auto;background:var(--paper);color:var(--ink)}.reader-inner{padding:24px 26px 38px}.reader-head{padding-bottom:18px;border-bottom:1px solid #cad7d3}.reader-pane .eyebrow,.mobile-reader .eyebrow,.archive-detail .eyebrow{background:#d4f3e4;border-color:#83bd9d;color:#0a5c40}.reader-head h3{margin-top:12px;font-size:27px}.reader-meta{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-top:10px;color:#4d666d;font-size:13px}.reader-body{padding-top:22px;overflow-wrap:anywhere}.reader-frame{display:block;width:100%;min-height:420px;border:0;background:#fff;flex:0 0 auto}.demo-letter{max-width:650px;margin:auto;padding:26px;border:1px solid #d3dfdb;border-radius:7px;background:#fff}.demo-letter h2{font-size:28px;color:#12313a}.demo-letter p{margin-top:14px;color:#425c63}.demo-code{padding:16px;margin-top:18px;background:#e3f8ee;color:#064433;font:750 28px var(--mono);letter-spacing:.14em;text-align:center}.mail-action{display:inline-flex;margin-top:20px;padding:9px 14px;border-radius:4px;background:#1a9a68;color:#fff;font-weight:700}.empty-note{margin:16px;padding:18px;border:1px dashed #5a766c;border-radius:6px;background:#12352b;color:#d7e1df}.logo-ribbon{padding:24px 0;background:var(--lime);color:#13362d}.logo-row{display:flex;align-items:center;justify-content:space-between;gap:24px;overflow-x:auto;touch-action:pan-x;font:700 13px var(--mono);letter-spacing:.06em;white-space:nowrap}.section{padding:126px 0 64px}.section+.section{padding-top:72px}.section-head{max-width:720px}.section-head.center{margin-inline:auto;text-align:center}.section-head.center .eyebrow{margin-inline:auto}.section-head p{margin-top:20px;color:#c5d1cf}.card-grid,.steps{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;margin-top:42px}.feature-card,.step,.panel-card{min-width:0;padding:27px;border:1px solid var(--line);border-radius:7px;background:rgba(8,44,55,.88)}.feature-card svg{width:34px;height:34px;padding:5px;border-radius:5px;background:rgba(62,224,168,.12);stroke:var(--green);fill:none;stroke-width:1.6}.feature-card h3,.step h3{margin-top:22px}.feature-card p,.step p{margin-top:12px;color:#c3cfcd}.light-panel{padding:clamp(30px,5vw,66px);border-radius:9px;background:var(--paper);color:var(--ink);display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:56px}.light-panel .eyebrow{background:#d4f3e4;color:#0a5c40;border-color:#8dc9aa}.light-panel p{margin-top:18px;color:#405960}.decision-list{display:grid;gap:0}.decision-item{padding:18px 0}.decision-item+.decision-item{border-top:1px solid #cad8d4}.decision-item strong,.decision-item span{display:block}.decision-item span{margin-top:4px;color:#536a70}.split{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:70px;align-items:start}.metric-stack{display:grid}.metric{display:grid;grid-template-columns:52px minmax(0,1fr);gap:16px;padding:20px 0;align-items:center}.metric+.metric{border-top:1px solid #2a4d42}.metric strong{font:700 24px var(--mono);color:var(--green)}.comparison{width:100%;margin-top:38px;border-collapse:collapse;background:#0e2a22;border:1px solid var(--solid-line)}.comparison th,.comparison td{padding:15px 18px;text-align:left;border-bottom:1px solid #2a4d42}.comparison th{color:var(--lime);font:650 12px var(--mono);letter-spacing:.05em}.comparison td{color:#dbe4e2}.faq-grid{max-width:860px;margin:40px auto 0}.faq-grid details{border-bottom:1px solid #2a4d42}.faq-grid summary{padding:19px 4px;cursor:pointer;font-weight:700;list-style:none}.faq-grid summary::after{content:"";float:right;width:9px;height:9px;margin:6px;border-right:2px solid var(--green);border-bottom:2px solid var(--green);transform:rotate(45deg)}.faq-grid details[open] summary::after{transform:rotate(225deg)}.faq-grid details p{padding:0 4px 20px;color:#c5d1cf}.cta-band{margin-top:70px;margin-bottom:80px;padding:36px;display:flex;align-items:center;justify-content:space-between;gap:30px;border-radius:7px;background:var(--green);color:#063326}.cta-band p{margin-top:8px;color:#164c3c}.cta-band .button-secondary{background:#063326;border-color:#063326}.site-footer{padding:64px 0 28px;border-top:1px solid var(--solid-line);background:#05110d}.footer-grid{display:grid;grid-template-columns:1.6fr repeat(3,minmax(0,1fr));gap:45px}.footer-brand p{max-width:380px;margin-top:18px;color:var(--muted)}.footer-col{display:grid;align-content:start;gap:8px}.footer-col strong{margin-bottom:7px;color:var(--lime)}.footer-col a{color:#c5d1cf}.footer-col a:hover{color:var(--green)}.footer-bottom{margin-top:50px;padding-top:22px;border-top:1px solid var(--solid-line);display:flex;align-items:center;justify-content:space-between;gap:20px;color:var(--muted);font-size:13px}.footer-languages{display:flex;gap:14px;flex-wrap:wrap}.footer-languages a[aria-current]{color:var(--green)}
/* Inner pages, legal layouts and functional workspaces */
.inner-hero{padding:84px 0 24px;text-align:center}.inner-hero .narrow{max-width:850px}.inner-hero .eyebrow{margin-inline:auto}.inner-hero h1{margin-top:18px;font-size:clamp(38px,5vw,58px)}.inner-hero p{max-width:720px;margin:22px auto 0;color:var(--muted);font-size:18px}.vault-talk{margin-inline:auto}.vault-talk h2{margin-top:18px}.vault-talk>p{margin-top:20px;color:var(--muted)}.vault-talk .notice{margin-top:24px}.console-heading,.panel-heading,.archive-tools{display:flex;align-items:center;justify-content:space-between;gap:20px;min-width:0}.console-heading{padding-bottom:30px}.console-heading p,.panel-heading p{margin-top:8px;color:var(--muted)}.vault-pane{min-width:0;padding:34px;border:1px solid var(--line);border-radius:8px;background:#0e2a22}.vault-pane+.vault-pane{margin-top:28px}.panel-heading{margin-bottom:24px}.table-scroll{max-width:100%;margin-top:20px;overflow-x:auto}.archive-tools{justify-content:flex-start;margin-bottom:20px}.archive-tools>input{max-width:460px}.custom-select{position:relative;flex:none}.custom-select>button{position:relative;width:max-content;padding:10px 46px 10px 14px;border:1px solid #4d6e62;border-radius:5px;background:#154032;color:#fff}.custom-select>button::after{content:"";position:absolute;right:18px;top:50%;width:7px;height:7px;border-right:2px solid currentColor;border-bottom:2px solid currentColor;transform:translateY(-70%) rotate(45deg)}.select-options{position:absolute;right:0;top:calc(100% + 6px);z-index:4;min-width:180px;padding:6px;border:1px solid var(--solid-line);border-radius:6px;background:#0e2a22}.select-options button{display:block;width:100%;padding:9px 10px;border:0;background:transparent;color:#fff;text-align:left}.select-options button:hover,.select-options button[aria-selected="true"]{background:#1b4a3a;color:#fff}.archive-detail{max-width:100%;max-height:720px;margin-top:24px;padding:24px;overflow:auto;border:1px solid var(--line);border-radius:7px}.archive-detail iframe{display:block;width:100%;max-width:100%;min-height:420px;margin-top:20px;border:0;background:#fff}.compact-steps{margin-bottom:26px}.twofa-setup{display:grid;gap:10px;margin-top:24px}.twofa-setup .qr-image{width:156px;height:156px}.overview-grid,.legal-glance{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}.overview-card{min-width:0;padding:24px;border:1px solid var(--line);border-radius:7px;background:#0e2a22}.overview-card p{margin-top:8px;color:var(--muted)}.legal-layout{display:grid;grid-template-columns:minmax(0,1fr);gap:28px}.legal-section{padding:30px;border:1px solid var(--line);border-radius:7px;background:#0e2a22}.legal-section h2{font-size:30px}.legal-section p{margin-top:12px;color:#d7e0de}.list-pair{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}.list-card{min-width:0;padding:28px;border-radius:7px;background:var(--paper);color:var(--ink)}.list-card ul{padding-left:20px}.list-card li+li{margin-top:8px}
/* Forms, console and data components */
.form-card{max-width:720px;padding:30px;border:1px solid var(--line);border-radius:8px;background:#0e2a22}.field-group{display:grid;gap:8px;min-width:0}.field-group+*{margin-top:24px}.field-group label{font-weight:700}.field-group small,.help-text{color:var(--muted)}input,textarea{width:100%;min-width:0;padding:11px 13px;border:1px solid #6b8a7e;border-radius:5px;background:#fff;color:var(--ink)}input:focus,textarea:focus{outline:2px solid #071410;outline-offset:2px;border-color:#071410;box-shadow:none}input.is-flash{animation:prefix-flash .7s ease}@keyframes prefix-flash{0%,100%{background:#fff}45%{background:#c8f6df}}.notice{padding:13px 15px;border:1px solid #4d6e62;border-radius:5px;background:#0c3843;color:#e4ecea}.notice.is-success{border-color:#32835a;background:#0a3f31;color:#dffff0}.notice.is-error{border-color:#9a4d49;background:#4b2526;color:#ffe4e1}.vault-fold{display:grid;grid-template-columns:minmax(0,1fr);gap:32px}.vault-pane{min-width:0;padding:28px;border:1px solid var(--line);border-radius:8px;background:#0e2a22}.vault-pane+.vault-pane{margin-top:0}.panel-head{display:flex;align-items:flex-start;justify-content:space-between;gap:20px}.panel-head p{margin-top:8px;color:var(--muted)}.quota-badge{display:flex;width:max-content;padding:6px 9px;border-radius:99px;background:rgba(200,246,223,.12);color:var(--lime);font:650 12px var(--mono)}.alias-composer{display:flex;align-items:center;margin-top:24px;border:1px solid #6b8a7e;border-radius:6px;background:#fff;overflow:hidden}.alias-composer:focus-within{outline:2px solid #071410;outline-offset:2px;border-color:#071410}.alias-composer input{flex:1;border:0;outline:none}.alias-composer input:focus{outline:none}.domain-suffix{padding:0 13px;color:#415b62;white-space:nowrap}.data-scroll{min-width:0;overflow-x:auto;margin-top:24px}.data-table{width:100%;border-collapse:collapse;min-width:650px}.data-table th,.data-table td{padding:13px 10px;border-bottom:1px solid #2a4d42;text-align:left}.data-table th{font:650 11px var(--mono);color:var(--lime);text-transform:uppercase}.data-table td{color:#e1e9e7}.data-table .status-cell,.data-table .action-cell{white-space:nowrap}.row-actions{display:flex;align-items:center;gap:8px;flex-wrap:nowrap}.row-action{padding:5px 8px;border:1px solid #4d6e62;border-radius:4px;background:#154032;color:#fff}.row-action:hover{background:#1b4b55;color:#fff}.empty-state{margin-top:18px;padding:20px;border:1px dashed #5a766c;border-radius:6px;background:#12352b;color:#d5dfdd}.filter-bar{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-top:24px}.filter-select{position:relative;width:max-content}.filter-trigger{display:flex;align-items:center;gap:10px;width:max-content;padding:9px 12px;border:1px solid #4d6e62;border-radius:5px;background:#154032;color:#fff}.filter-list{position:absolute;top:calc(100% + 7px);left:0;z-index:8;width:max-content;min-width:100%;padding:6px;border:1px solid #4d6e62;border-radius:5px;background:#0e2a22}.filter-list[hidden]{display:none}.filter-option{display:flex;width:100%;justify-content:space-between;gap:20px;padding:8px 10px;border:0;border-radius:3px;background:transparent;color:#fff;white-space:nowrap}.filter-option:hover,.filter-option[aria-selected="true"]{background:#1b4a3a;color:#fff}.filter-option[aria-selected="true"]::after{content:"";width:9px;height:5px;border-left:2px solid var(--green);border-bottom:2px solid var(--green);transform:rotate(-45deg)}.setup-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin-top:20px}.setup-step{padding:16px;border:1px solid #2a4d42;border-radius:6px}.setup-step strong,.setup-step span{display:block}.setup-step span{margin-top:7px;color:var(--muted)}.twofa-setup{display:grid;gap:10px;margin-top:20px}.qr-image{width:180px;height:180px;padding:8px;border-radius:6px;background:#fff}.secret-line{display:flex;align-items:center;gap:10px;flex-wrap:wrap}.archive-detail{max-width:900px;min-width:0;overflow:hidden}.archive-detail iframe{width:100%;min-width:0;border:0;background:#fff;flex:0 0 auto}.attachment-list{display:grid;gap:8px;margin-top:18px}.attachment-item{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:11px;border:1px solid #4d6e62;border-radius:5px}.mobile-reader{position:fixed;inset:0;z-index:60;width:100%;height:100dvh;overflow:auto;background:var(--paper);color:var(--ink)}.mobile-reader[hidden]{display:none}.sheet-close{position:sticky;top:0;z-index:2;width:100%;padding:12px 18px;border:0;border-bottom:1px solid #cad8d4;background:#fff;color:var(--ink);text-align:left;font-weight:750}.toast{position:fixed;left:50%;bottom:24px;z-index:80;width:max-content;max-width:min(430px,calc(100% - 32px));padding:11px 16px;border:1px solid #4d6e62;border-radius:12px;background:#092e39;color:#fff;opacity:0;visibility:hidden;transform:translate(-50%,12px);transition:.2s}.toast.show{opacity:1;visibility:visible;transform:translate(-50%,0)}.modal-backdrop{position:fixed;inset:0;z-index:70;display:grid;place-items:center;padding:20px;background:rgba(0,19,27,.78)}.modal-backdrop[hidden]{display:none}.dialog{width:min(480px,100%);padding:26px;border:1px solid #4d6e62;border-radius:8px;background:#0e2a22}.dialog p{margin-top:12px;color:var(--muted)}
@media(max-width:1080px){.main-nav{display:none}.nav-toggle{display:block;margin-left:auto}.nav-actions{margin-left:0}.header-cta{display:none}.card-grid,.steps{grid-template-columns:repeat(2,minmax(0,1fr))}.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:760px){.inner-hero{padding-top:58px}.console-heading,.panel-heading,.archive-tools{align-items:stretch;flex-direction:column}.vault-pane{padding:22px}.overview-grid,.legal-glance,.list-pair,.compact-steps{grid-template-columns:minmax(0,1fr)}.wrap{width:min(100% - 28px,var(--max))}.announcement{min-height:40px}.site-header{height:60px}.header-row{gap:8px}.brand span{display:block}.nav-login{display:none}.lang-toggle{font-size:0;gap:0;width:40px;height:40px;padding:0;justify-content:center}.lang-toggle::before{content:"";width:15px;height:15px;border:1.5px solid currentColor;border-radius:50%;background:linear-gradient(90deg,transparent 43%,currentColor 44% 56%,transparent 57%)}.lang-toggle::after{display:none}.mobile-nav{top:106px;left:14px;right:14px}.hero{padding-top:62px}.hero h1{font-size:clamp(38px,11vw,52px)}.hero-actions{align-items:stretch}.hero-actions a{flex:1 1 220px}.tool-strip{align-items:stretch;flex-direction:column}.address-field{flex-wrap:wrap;overflow:visible;border:0;background:transparent}.address-field input{flex:1 1 100%;height:auto;overflow-wrap:anywhere;border:1px solid #6b8a7e;border-radius:5px}.address-field .copy-button{margin:8px 0 0}.mail-tools{justify-content:flex-start}.inbox-grid{height:720px;display:block}.mail-list-panel{height:100%;border-right:0}.inbox-grid>.reader-pane{display:none}.section{padding:92px 0 56px}.card-grid,.steps,.light-panel,.split,.setup-grid{grid-template-columns:minmax(0,1fr)}.card-grid,.steps{gap:22px}.light-panel{gap:34px}.comparison{display:block;overflow-x:auto;white-space:normal}.cta-band{margin-inline:14px;flex-direction:column;align-items:flex-start}.footer-grid{grid-template-columns:minmax(0,1fr)}.footer-bottom{align-items:flex-start;flex-direction:column}.panel-head{flex-direction:column}.alias-composer{flex-wrap:wrap}.alias-composer input{flex:1 1 55%}.data-scroll{max-width:100%}.vault-pane{padding:20px}.attachment-item{align-items:flex-start;flex-direction:column}}
@media(max-width:420px){.brand img{width:30px;height:30px}.brand{font-size:15px}.header-row{gap:6px}.nav-toggle,.lang-toggle{width:38px;height:38px}.hero-pills{align-items:flex-start;flex-direction:column}.mail-tools{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));width:100%}.timer{grid-column:1/-1}.tool-button{width:100%}.button-row{align-items:stretch}.button-row>*{flex:1 1 130px}.row-actions{flex-wrap:wrap}.domain-suffix{font-size:13px}}
/* QA context guards: independent cards must not stretch; component headings stay below page hierarchy. */
.card-grid{align-items:start}.field-group small{font:13px/1.55 var(--font)}.dialog h2,.dialog h3{font-size:clamp(20px,3vw,26px)}.prose h2{font-size:clamp(25px,3vw,32px)}
.vault-talk{display:grid;gap:22px;max-width:920px;margin-inline:auto}@media(min-width:860px){.vault-talk{grid-template-columns:minmax(220px,.38fr) minmax(0,1fr);align-items:start}}.vault-aside{padding:22px;border:1px dashed rgba(62,224,168,.35);border-radius:8px;color:var(--muted);font-size:14px}.vault-fold{display:grid;gap:20px}.vault-pane{position:relative;padding-left:28px;border-left:6px solid var(--green)}.demo-brand{display:flex;align-items:center;gap:10px;margin:0 0 16px;padding:12px 14px;font-weight:750}.demo-brand.MS-head{background:#fff;color:#111}.demo-brand.SP-head{background:#1db954;color:#04140a}.demo-cta{display:inline-flex;margin-top:16px;padding:9px 14px;border:1px solid var(--green);color:var(--green);pointer-events:none}
/* 2026-08-26 清新绿 + 地址栏贴齐 + 收件同明暗 + 文段 CTA 组距 */
.site-header{background:rgba(7,20,16,.97)}
.address-field{background:#0a1f19;border-color:var(--solid-line)}
.address-field input{background:transparent;color:var(--white)}
.address-field .copy-button{margin:0;margin-right:0;min-height:48px;height:48px;border-radius:0;align-self:stretch}
.address-field:focus-within{border-color:var(--green);outline:2px solid var(--green);outline-offset:1px}
.reader-pane,.mobile-reader{background:var(--night-2);color:var(--white)}
.reader-head{border-bottom-color:var(--solid-line)}
.reader-pane .eyebrow,.mobile-reader .eyebrow,.archive-detail .eyebrow{background:rgba(62,224,168,.12);border-color:rgba(62,224,168,.28);color:var(--green)}
.reader-head h3{color:var(--white)}
.reader-meta{color:var(--muted)}
.sheet-close{background:var(--night);color:var(--white);border-bottom-color:var(--solid-line)}
.demo-mail{max-width:640px;margin:0;padding:28px;border:1px solid var(--solid-line);border-radius:10px;background:#10291f;color:#e8f5ef}
.demo-mail h2{margin-top:18px;font-size:24px;color:#fff}
.demo-mail p{margin-top:12px;color:#c5d8cf}
.demo-brand{display:flex;align-items:center;gap:12px;margin:0 0 4px;padding:14px 16px;border-radius:8px}
.demo-brand .brand-mark{width:28px;height:28px;display:grid;place-items:center;background:transparent}
.demo-brand .brand-mark svg{width:28px;height:28px}
.demo-brand strong,.demo-brand .demo-meta{display:block}
.demo-meta{margin-top:2px;font-size:12px;opacity:.75;font-weight:500}
.demo-brand.MS-head{background:#1a3344;color:#fff}
.demo-brand.SP-head{background:#12833a;color:#fff}
.demo-code-card{margin-top:20px;padding:18px;border:1px solid rgba(62,224,168,.28);border-radius:8px;background:rgba(62,224,168,.08);text-align:center}
.demo-code-label,.demo-code-hint{display:block;font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
.demo-code{margin:8px 0;padding:0;background:transparent;color:var(--green);font:750 32px var(--mono);letter-spacing:.16em}
.demo-cta{display:inline-flex;margin-top:20px;padding:10px 16px;border-radius:5px;background:var(--green);border:0;color:#05291f;font-weight:750}
.demo-mail .demo-note{margin:22px 0 0;padding:0;border:0;background:transparent;color:var(--muted);font-size:13px}
.section-cta{padding-top:28px}
@media(max-width:760px){
  .address-field{background:transparent;border:0}
  .address-field input{border:1px solid var(--solid-line);border-radius:5px;background:#0a1f19;color:var(--white)}
  .address-field .copy-button{margin:8px 0 0;min-height:48px;height:auto;border-radius:5px;width:100%}
}

/* 2026-08-26 深色输入全覆盖 + 别名行贴齐 + 标题组距 + 页眉短标签 */
input,textarea{background:#0a1f19;color:var(--white);border-color:var(--solid-line)}
input:focus,textarea:focus{outline:2px solid var(--green);outline-offset:2px;border-color:var(--green);box-shadow:none}
input::placeholder,textarea::placeholder{color:#8aa396}
@keyframes prefix-flash{0%,100%{background:#0a1f19}45%{background:#164636}}
.composer,.alias-composer{background:#0a1f19;border-color:var(--solid-line);align-items:stretch;overflow:hidden}
.composer input,.alias-composer input{background:transparent;color:var(--white);height:48px;min-height:48px}
.composer:focus-within,.alias-composer:focus-within{border-color:var(--green);outline:2px solid var(--green);outline-offset:1px}
.domain-suffix{color:#9bb5ab;background:#0d261e;border-left:1px solid var(--solid-line)}
.composer .button-quiet,.composer .copy-button,.alias-composer .button-quiet,.alias-composer .copy-button{margin:0;min-height:48px;height:48px;border-radius:0;align-self:stretch;border-left:1px solid var(--solid-line)}
.table-scroll table,.data-table{width:100%;border-collapse:collapse;min-width:640px}
.table-scroll th,.table-scroll td,.data-table th,.data-table td{padding:13px 10px;border-bottom:1px solid #2a4d42;text-align:left}
.composer{margin-top:24px}
.custom-select{margin-block:16px}
.section-head{margin-bottom:48px}
.section-head.center{margin-bottom:48px}
.section-head + .overview-grid,.section-head + .card-grid,.section-head + .steps{margin-top:8px}
html[lang="zh"]{--font:"PingFang SC","Hiragino Sans GB","Noto Sans SC","Microsoft YaHei","Heiti SC",system-ui,sans-serif}
html[lang="zh"] h1,html[lang="zh"] h2,html[lang="zh"] h3{letter-spacing:0;font-weight:600}
html[lang="zh"] h1{font-weight:700}
.domain-suffix{display:flex;align-items:center;align-self:stretch;min-height:48px;padding:0 13px}
.custom-select>button{background:#154032;color:#fff;border-color:#4d6e62}
.select-options{background:#0e2a22;border-color:#4d6e62}
.select-options button{background:transparent;color:#fff}
.select-options button:hover,.select-options button[aria-selected="true"]{background:#1b4a3a;color:#fff}
.header-row{min-width:0}
.main-nav{min-width:0}
@media(max-width:1240px){.main-nav{display:none}.nav-toggle{display:block;margin-left:auto}.header-cta{display:none}}