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@keyframes flow{to{stroke-dashoffset:-216}}@keyframes live-pulse{0%,100%{opacity:.55}50%{opacity:1}}@keyframes orb-drift{0%,100%{transform:rotate(-4deg)}50%{transform:rotate(8deg)}}@keyframes device-float{0%,100%{transform:translate(-50%,-50%) rotate(-6deg)}50%{transform:translate(-50%,-52%) rotate(-3deg)}}@keyframes note-float{0%,100%{transform:translateY(0)}50%{transform:translateY(-12px)}}@keyframes lock-pulse{0%{opacity:.8;transform:scale(.8)}90%,100%{opacity:0;transform:scale(1.75)}}@keyframes cipher-move{0%{transform:translateX(-10px);opacity:0}35%,65%{opacity:.8}100%{transform:translateX(28px);opacity:0}}@keyframes message-life{0%,8%{opacity:0;transform:translateY(12px)}16%,65%{opacity:1;transform:none}76%,100%{opacity:0;transform:translateY(-10px)}}@keyframes cleared-life{0%,76%,100%{opacity:0}81%,93%{opacity:1}}@keyframes countdown{0%,12%{stroke-dashoffset:100}70%,100%{stroke-dashoffset:0}}@keyframes timer-line{0%,12%{transform:scaleX(0)}70%,93%{transform:scaleX(1)}100%{transform:scaleX(0)}}body[data-motion=paused] *,[data-in-view=false] *,html[data-tab-hidden=true] *{animation-play-state:paused!important}body[data-motion=paused] .message-simulation{animation:none;opacity:1;transform:none}body[data-motion=paused] .cleared-message{animation:none;opacity:0}
@media(min-width:1500px){.hero-layout{min-height:850px}.hero-stage{height:730px}.hero-device{width:282px}.network-orb{width:720px}}
@media(max-width:1100px){.wrap{width:calc(100% - 64px)}.nav{gap:22px}.nav nav{gap:23px}.nav .brand-cn{display:none}.hero-layout{gap:12px;min-height:700px}.hero-stage{height:630px}.hero-device{width:226px}.network-orb{width:560px}.hero-description{font-size:15px}.hero .actions{gap:12px}.hero .button{padding:15px 18px;font-size:12px;gap:18px}.note-encryption{left:-10px;top:114px;transform:scale(.9);padding:12px}.note-connection{right:-5px;bottom:110px;padding:13px;font-size:10px}.experience-layout,.security-layout,.deploy-layout{gap:50px}.lifecycle-layout{gap:55px}.product-stage{height:565px}.showcase-device{left:42%;width:210px}.side-device{width:190px;left:1%;top:100px}.preview-tabs{gap:17px}.preview-tabs button{font-size:11px}.security-visual{padding-block:30px}.endpoint{width:75px;height:115px}.cipher-bridge{width:170px}.platforms article{padding:25px}.platforms .button{font-size:11px;padding-inline:14px;gap:12px}.faq{gap:60px}.footer-top>p{display:none}}
@media(max-width:850px){.nav nav{display:none}.nav-actions{margin-left:auto}.nav{height:76px}.hero-copy h1{font-size:39px}.hero-description{font-size:14px}.note-encryption{left:-20px;top:100px}.mini-icon{padding:7px}.floating-note strong{font-size:10px}.hero-stage{height:590px}.note-connection{right:-10px;bottom:100px;font-size:9px}.feature-strip{font-size:10px;gap:15px}.section{padding-block:86px}.experience-layout{gap:35px;grid-template-columns:.9fr 1.1fr}.product-stage{height:515px}.showcase-device{width:195px;left:34%;top:33px}.side-device{width:160px;left:2%;top:120px}.preview-tabs{gap:13px;flex-wrap:wrap}.preview-copy h3{font-size:23px}.preview-copy>p{font-size:12px}.experience-copy>.fine-print{margin-top:25px}.security-layout,.deploy-layout{gap:35px}.security-layout h2{font-size:33px}.endpoint{width:60px;height:95px}.endpoint svg{width:36px;height:36px}.cipher-bridge{width:135px}.lock-core{width:54px;height:54px}.protocol-line{gap:16px;font-size:8px}.security .section-description{font-size:13px}.lifecycle-layout{gap:35px}.lifecycle-demo{padding:25px;min-height:330px}.timer-pills{gap:8px;margin-bottom:35px}.timer-pills>span{font-size:8px}.avatar{display:none}.resource-banner{gap:30px}.resource-numbers{gap:23px}.platforms{gap:14px}.platforms article{padding:22px 18px}.platforms h3{font-size:22px}.platforms p{min-height:56px}.platforms .button{font-size:10px}.faq{grid-template-columns:.8fr 1.2fr;gap:35px}.footer-top{gap:20px}.footer-top>div{gap:18px;font-size:10px}}
@media(max-width:650px){.wrap{width:calc(100% - 40px)}.nav{height:70px;gap:15px}.brand img{width:32px;height:32px;border-radius:9px}.brand>span{font-size:22px}.nav-actions{gap:17px}.language{font-size:11px}.language svg{width:16px;height:16px}.button.compact{font-size:10px;padding:10px 14px;gap:10px}.hero-layout{display:flex;flex-direction:column;gap:0;padding-top:28px}.hero-copy{width:100%;padding-top:18px;padding-bottom:0}.hero .eyebrow{font-size:8px;letter-spacing:.1em;margin-bottom:24px}.hero-copy h1{font-size:44px;letter-spacing:-.05em;margin-bottom:23px}html[lang=zh-CN] .hero-copy h1{font-size:clamp(32px,9vw,52px);line-height:1.3}.hero-description{font-size:14px;max-width:465px;margin-bottom:25px}.hero .actions{gap:12px}.hero .button{font-size:12px;padding:14px 18px;gap:22px}.release{font-size:9px;margin-top:22px;gap:5px}.hero-stage{width:100%;height:570px;margin-top:0}.hero-device{width:232px;top:49%}.network-orb{width:540px}.hero-caption{bottom:28px;font-size:8px}.floating-note{backdrop-filter:blur(9px)}.note-encryption{left:0;top:100px;gap:8px;padding:12px}.note-connection{bottom:100px;right:0;max-width:85%;font-size:9px}.motion-toggle{bottom:0;font-size:9px}.feature-strip{display:grid;grid-template-columns:1fr 1fr;gap:20px 15px;padding-block:25px;font-size:10px}.feature-strip i{display:none}.feature-strip span:before{content:"";width:4px;height:4px;background:#769bc3;display:inline-block;margin-right:12px;border-radius:50%;vertical-align:middle}.section{padding-block:66px}.section-heading{margin-bottom:35px}.eyebrow{font-size:10px;margin-bottom:22px}h2,.security-layout h2{font-size:32px;line-height:1.25}html[lang=zh-CN] h2{line-height:1.45}.section-heading>p:not(.eyebrow){font-size:13px}.experience-layout,.security-layout,.deploy-layout,.lifecycle-layout{display:flex;flex-direction:column;gap:35px;align-items:stretch}.experience-copy{order:1}.product-stage{order:0;height:540px;max-width:440px;width:100%;margin:auto}.showcase-device{width:212px;left:40%;top:24px}.side-device{width:182px;left:5%;top:100px}.preview-tabs{gap:26px;margin-bottom:25px}.preview-tabs button{font-size:12px}.preview-copy h3{font-size:23px}.preview-copy p{font-size:13px}.section-index{margin-bottom:15px}.experience-copy>.fine-print{margin-top:22px;max-width:none}.security .section-description,.section-description{font-size:13px}.security-points{margin-top:30px}.security-points h3{font-size:14px}.security-points p{font-size:11px}.security-visual{padding:15px 0 25px}.encryption-art{min-height:240px}.endpoint{width:75px;height:110px}.cipher-bridge{width:175px}.protocol-line{font-size:9px;gap:25px}.section-boundary{margin-top:28px;padding-top:24px}.deploy-art{height:370px;max-width:460px;width:100%;margin:auto}.deploy-tabs{margin:25px 0}.resource-banner{margin-top:40px;display:block;padding-block:28px}.resource-banner h3{font-size:18px}.resource-numbers{margin-top:30px;gap:60px}.resource-numbers b{font-size:38px}.api-panel{padding-top:10px;gap:22px}.api-panel code{font-size:17px}.api-panel button{font-size:11px}.lifecycle-layout>.reveal:last-child{order:-1}.lifecycle-demo{padding:28px;min-height:340px}.avatar{display:grid}.sim-bubble p{font-size:11px}.timer-pills>span{font-size:9px}.cleared-message{font-size:10px;left:20px;right:20px}.platforms{grid-template-columns:1fr;gap:18px}.platforms article{padding:27px;position:relative}.platform-icon{width:44px;height:44px;margin-bottom:23px}.platforms h3{font-size:26px}.platforms p{font-size:12px;min-height:0;margin-bottom:20px}.build-meta{font-size:11px}.platforms .button{font-size:12px;margin-top:22px}.download-disclosure{margin-top:22px;font-size:10px}.faq{display:block;margin-top:45px;padding-top:35px}.faq>h3{font-size:23px;margin-bottom:30px}.faq summary{font-size:12px}.faq details>p{font-size:11px}.closing{padding:65px 0}.closing h2{font-size:35px}.closing .button{font-size:12px}.footer{padding-top:35px}.footer-top{align-items:flex-start;gap:25px;flex-direction:column;padding-bottom:30px}.footer-top>div{font-size:11px;gap:28px}.footer-bottom{font-size:8px;flex-wrap:wrap;gap:16px}.footer-bottom>a{margin-left:auto}.privacy-header{padding-block:25px}.prose{padding-block:45px 80px}.prose h1{font-size:32px!important}.prose h2{font-size:22px}.prose p{font-size:13px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{animation:none!important;transition:none!important}.js .reveal{opacity:1;transform:none}.message-simulation{opacity:1;transform:none}.cleared-message{opacity:0}.timer-track i{transform:scaleX(.5)}}
/* Keep small, meaningful copy readable across the light sections. */
.fine-print{color:#5e6a77!important}.product-label{color:#556270}.api-panel p,.platforms p,.build-meta,.download-disclosure{color:#5e6a77}.footer-bottom{color:#8a98a7}

/* Blue identity: calm daylight opening, deep-blue security narrative. */
.header{color:var(--ink);background:#ffffffeb;border-bottom:1px solid #dbe7f680}
.nav nav{color:#526782}.nav nav a:hover,.language:hover{color:var(--blue)}
.header .button{background:var(--blue);color:#fff}.brand img{border-radius:10px}
.hero.dark{color:var(--ink);background:radial-gradient(ellipse at 82% 32%,#dceeff 0,transparent 54%),linear-gradient(150deg,#fff 10%,#f2f8ff 100%)}
.hero-copy h1{letter-spacing:-.055em}.hero h1 em{color:var(--blue)}
.hero-description{color:#596e88;max-width:490px}.hero .eyebrow{color:var(--blue)}
.hero .button{background:var(--blue);color:#fff;box-shadow:0 8px 24px #126dcc20}
.hero .button.outline{background:transparent;color:var(--ink);border-color:#c6d9ef;box-shadow:none}
.release{color:#6c819b}.release>span{color:var(--blue);font-weight:600}
.hero-device{border-color:#17314d;box-shadow:0 32px 72px #163e6b29,0 0 0 1px #95b8dd40;border-radius:37px}
.hero-stage{isolation:isolate}.hero-glow{background:radial-gradient(circle,#71bfff35,transparent 66%)}
.network-orb{opacity:.75}.orb-grid{stroke:#7eb5e44a}.network-traces{stroke:#438fdc55}.packet-traces{stroke:#208aed}
.orb-nodes>g>rect{fill:#e7f3ff;stroke:#9cc9ef}.orb-nodes svg,.orb-nodes use{stroke:#4389cc}
.floating-note{color:#234365;background:#ffffffed;border-color:#d4e5f5;box-shadow:0 16px 40px #224f7e14}
.floating-note strong{color:#183d66}.floating-note .mini-icon{background:#e8f4ff;color:var(--blue)}
.floating-note .note-tick{color:var(--blue)}.hero-caption{color:#788ba3}.motion-toggle{color:#456682;border-color:#b6d2ed;background:#ffffffba}
.feature-strip{color:#476780;border-color:#cbdff0}.feature-strip i{background:#aac9e4}
.product-stage{background:radial-gradient(circle at 68% 28%,#d8ebff,#edf5ff 65%);border:1px solid #deebf8}
.showcase-device,.side-device{border-color:#1e3857;box-shadow:0 28px 56px #20486b23}
.section-index{color:#8daed3}.resource-banner{background:#eaf4ff;border-color:#cfe3fa}
.api-panel{background:#fff;border-color:#d9e7f5}.lifecycle{background:#edf5ff}
.platforms article{background:linear-gradient(145deg,#fff,#f6faff);border-color:#dbe8f6}
.platforms article:hover{border-color:#a6c9ec;box-shadow:0 24px 54px #244e7c12}
.platform-download:disabled{cursor:default;opacity:1;color:#6c83a0;background:#e8f1fb;box-shadow:none;border-color:#d5e5f5;transform:none}
.build-meta{color:#7e93ac}.download-disclosure{background:#edf5ff;border-color:#d5e5f7;color:#526e90}
@media(max-width:700px){.hero-device{border-radius:32px}.nav-actions{gap:12px}.hero-stage{margin-top:12px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}