/* v0.4 — 银白冷光；保留明亮可读的底色。 */
:root{--ink:#273749;--paper:#f4f6f9;--mint:#488ba6}
body{background:#f4f6f9}.nav{color:#2b3c51;background:#f8fafcf0;border-color:#cad5e440}.nav-links,.login{color:#40566e}.nav-links a:hover,.nav-links a.active{color:#2864a0}.brand-icon{color:#467298;background:linear-gradient(140deg,#f3f6fc,#e6edf8);border-color:#97aec04a}.motion-toggle{color:#4d6984}.motion-toggle:hover{background:#e5ebf4}.mobile-nav{color:#355675;background:#f7f9fc;border-color:#cbd7e7}
.hero{color:#263d56;background:linear-gradient(155deg,#f6f7fa 0%,#eef2f8 48%,#e8f0f5 100%)}.hero:before{background:radial-gradient(ellipse,#b8c9ec99,#d4dff34d 45%,transparent 70%)}.hero:after{background:radial-gradient(ellipse,#a9cbd966,#cbdce94d 45%,transparent 72%)}.hero .eyebrow{color:#425f7e}.hero-description{color:#354e69}.iridescent{background-image:linear-gradient(105deg,#46628b 5%,#457492 37%,#4b7890 65%,#636b91 96%)}
.halo-one{border-color:#83a6c44d;box-shadow:0 -4px 40px #78a0cb18,0 -1px 2px #9bb1d345,inset 0 6px 50px #93b3ca12}.halo-two{border-color:#9fafd240;box-shadow:0 -2px 24px #98b4d81a}.halo-three{background:radial-gradient(ellipse,#b7cce35c,transparent 70%)}.halo-one:after{background:#5789bc;box-shadow:0 0 8px #9fb5d7,0 0 22px 5px #73a0d030}.halo-two:after{background:#6e8cac;box-shadow:0 0 8px #a3b9db,0 0 22px 5px #91aed830}.star{background:#8aabc7;box-shadow:0 0 9px 2px #b6cfda55}.stage-aura{background:linear-gradient(100deg,#94afd34d,#a8c4d857)}
.button{background:#365f89;box-shadow:0 4px 13px #36557618,inset 0 1px 0 #ffffff18}.button:hover{background:#284f79;box-shadow:0 8px 27px #2e628b2b}.quiet-link,.text-link{color:#396c99}.quiet-link:hover{color:#224f7b}
.floating-note{background:linear-gradient(130deg,#ffffffed,#f1f6fcf2);box-shadow:0 12px 35px #41608518}.floating-note strong{color:#304d6b}.floating-note small{color:#516c89}.note-icon,.note-icon.mint{color:#4d7e9f;background:#e9f0f8;border-color:#bdd0dd66}.stage-caption{color:#536f89}.chrome{background:#edf2f9;color:#48617d;border-color:#dce4f0}.demo-label{color:#57718b}
.app-view{grid-template-columns:1fr}.app-content{padding:28px 38px 23px}.app-breadcrumb,.app-heading p,.app-summary small,.app-row small,.app-row>span,.app-bottom{color:#576d88}.app-summary>div{background:#f4f7fc;border-color:#e3eaf4}.app-table-head{background:#eff4fa;color:#52647e}.app-row .evidence-label{color:#3b719c}.app-heading h2{font-size:24px}.app-row{padding-block:14px}.app-summary strong{font-size:11px}.app-row strong{font-size:12px}.app-row>span{font-size:10px}
.section-heading .eyebrow,.statement .eyebrow,.delivery-copy .eyebrow,.belief .eyebrow,.faq .eyebrow{color:#446284}.section-heading h2>span,.delivery h2>span,.statement h2 span,.belief h2 span{color:#5a7395}.statement>p:last-of-type,.section-heading>p:last-child,.journey-caption p,.delivery-copy>p:not(.eyebrow),.belief-intro>p:last-child,.belief-grid p,.faq details p{color:#415873}.value-line,.value-line .icon{color:#486888}
.journey-playback{display:flex;align-items:center;gap:15px;color:#526b88;font-size:11px;margin:-20px 0 22px}.journey-playback button{padding:5px 13px;min-height:32px;border-radius:30px;background:#edf2f9;color:#365c83;border:1px solid #dae4f1;font-size:11px}.journey-playback button:hover{background:#e2eaf6}.journey-tabs strong{color:#4b6080}.journey-tabs small{color:#536a85}.step-number,.step-arrow{color:#657e99}.journey-tabs button[aria-selected=true] strong{color:#2f557e}.journey-tabs button[aria-selected=true]:before{background:linear-gradient(90deg,#527fae,#aacbd8)}.journey-panel{background:linear-gradient(135deg,#f0f4fa,#edf3f8);border-color:#e1e8f2}.journey-visual{background:radial-gradient(ellipse at 60% 65%,#b7cede85,transparent 65%)}.mini-tag{color:#4e7097}.profile-card>small,.profile-card>div>span{color:#536981}.profile-card b{color:#365574}.profile-avatar{background:#e3e9f6;color:#577295}.scene-card header span,.scene-row{color:#4d6986}.scene-row b{color:#335675}.scene-chip{color:#39658e;background:#e8eff9}
.evidence{color:#2a445f;background:linear-gradient(140deg,#e9eff7,#f0f4f9 50%,#e9f1f5)}.evidence .section-heading>p:last-child{color:#3e5772}.evidence-orbit i{border-color:#7f9eae45}.evidence-orbit i:nth-child(2){border-color:#879abf42}.evidence-orbit i:nth-child(3){border-color:#93afbf29}.evidence-orbit:before{background:radial-gradient(ellipse,#b4ccdf7a,transparent 70%)}.orbit-label{color:#486a8d}.evidence-card{color:#304c6c;background:linear-gradient(135deg,#ffffffe8,#f2f7fce6);box-shadow:0 20px 60px #66889b21,0 1px 0 #fff inset}.proof-header{color:#446589}.proof-header>span:last-child{color:#5a6b85}.proof-row{border-color:#dce5ef}.proof-row>span{color:#527096}.proof-row strong{color:#344e70}.proof-footer{color:#427498}.evidence-principles>div{border-color:#c7d5e4}.evidence-principles>div>span{color:#627b98}.evidence-principles p{color:#465d79}
.delivery{background:#f8f9fb}.delivery-grid{grid-template-columns:.9fr 1.1fr;gap:55px}.format-switch{background:#e7edf6;border-color:#dce5f0}.format-switch button{color:#46617f}.format-switch button[aria-selected=true]{color:#275985}.format-description{min-height:68px!important}.format-art{min-width:0}.format-art img{display:block;width:100%;height:auto;border-radius:21px;box-shadow:0 15px 45px #3c5d8610}.format-art>p{text-align:center;color:#4d6c8f;font-size:12px;margin-top:19px;letter-spacing:.5px}.format-art.switching img{animation:format-enter .42s var(--ease)}
.belief{background:#edf2f8}.belief-grid .icon{color:#567ba2}.care-scene{border-color:#d9e4f0;box-shadow:0 14px 40px #5c768b0a}.care-avatar{background:#e0e9f6;color:#416183}.care-avatar.student{background:#e8e6f3;color:#716589}.care-dialogue small{color:#536b89}.care-dialogue p{color:#3b506c}.care-assist{color:#416791;border-color:#819dbd;background:linear-gradient(90deg,#edf2fa,transparent)}.care-caption{color:#63758d}.faq{background:transparent}.faq details{border-color:#d4dfea}.faq summary:after{color:#476b96}
.closing{color:#2b4562;background:linear-gradient(155deg,#ecf1f8,#e5edf7 65%,#e5eff4)}.closing-glow{background:linear-gradient(100deg,#9cb1d9,#9cbecf);opacity:.45}.brand-icon.large{color:#507ca3;border-color:#b6c8dc;background:linear-gradient(145deg,#f4f8ff,#dbe7f4)}.closing h2 span{color:#597594}.closing p,.closing-login{color:#425e7c}footer{background:#eaf0f7;color:#46617e}.footer-main,.footer-bottom{border-color:#c8d4e34d}.footer-main .brand{color:#355372}.preview-note{color:#516b89}
@keyframes format-enter{from{opacity:.2;transform:translateY(9px) scale(.99)}to{opacity:1;transform:none}}
@media(max-width:800px){.delivery-grid{grid-template-columns:1fr;gap:35px}.format-art{width:100%;max-width:640px;margin-inline:auto}.format-description{min-height:45px!important}}
@media(max-width:520px){.app-content{padding:19px 16px 14px}.app-heading h2{font-size:17px}.app-summary strong{font-size:9px}.app-row strong{font-size:10px}.app-row>span{font-size:9px}.app-row{padding-block:12px}.journey-playback{margin-top:-14px}.format-art>p{font-size:10px}.journey-tabs strong{color:#355574}.delivery-copy{max-width:100%}}
.note-left{top:-38px;left:0}.note-right{top:-32px;bottom:auto;right:0;transform:rotate(3deg)}