@charset "UTF-8";
:root{--font-caption:12px;--font-small:13px;--font-body:14px;--font-reading:15px;--space-panel:24px;--control-height:44px;--bg:#f8f8fa;--surface:#fff;--text:#292735;--muted:#686572;--line:#e8e6ed;--purple:#0873d5;--purple-hover:#0664ba;--lavender:#eaf4ff;--soft:#f5f3f8;--green:#387666;--green-bg:#eaf5f0;--amber:#956322;--amber-bg:#fcf1df;--shadow:0 5px 24px #32224205;--radius:16px;--content:1280px;--gutter:40px;font-family:"Segoe UI","Microsoft YaHei UI","Microsoft YaHei",sans-serif;color:var(--text);background:var(--bg);font-synthesis:none;color-scheme:light}
*{box-sizing:border-box}html{scrollbar-gutter:stable;scroll-behavior:smooth}body{margin:0;font-size:var(--font-reading);line-height:1.7;background:var(--bg);color:var(--text);min-height:100vh}body.dark{--bg:#1d1d25;--surface:#25252f;--text:#eeedf4;--muted:#aaa6b9;--line:#3c3948;--purple:#78baff;--purple-hover:#a0cfff;--lavender:#1f354b;--soft:#2b2936;--green:#a3d8c5;--green-bg:#263e36;--amber:#e6c081;--amber-bg:#443725;--shadow:0 5px 24px 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1fr;gap:25px}.download-card{background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:36px}.download-icon{height:65px;width:65px;border-radius:18px;background:var(--lavender);color:var(--purple);display:flex;align-items:center;justify-content:center;margin-bottom:24px}.download-icon .icon{height:30px;width:30px}.download-icon.pdf{background:#f6eddf;color:#ba9665}.download-card h2{margin:8px 0 13px;font-size:23px}.download-card>p{font-size:var(--font-small);line-height:1.9}.download-card>small{display:block;font-size:var(--font-caption);color:var(--muted);margin-top:14px}.download-features{display:flex;gap:14px;flex-wrap:wrap;margin:25px 0;font-size:var(--font-caption);color:var(--muted)}.download-features span{display:flex;align-items:center;gap:4px}.download-features .icon{width:14px;height:14px;color:var(--green)}.compatible{padding:24px;margin-top:25px}.compatible>div{display:flex;gap:16px;align-items:center}.compatible>div+div{margin-top:20px;padding-left:40px;flex-wrap:wrap;gap:8px}.compatible p{font-size:var(--font-caption);margin-top:8px}.compatible .icon{color:var(--muted);height:25px;width:25px}.faq-section{max-width:760px;margin:44px auto}.faq-section>h2{font-size:22px;margin-bottom:10px}.confirm-page{padding-top:45px;max-width:650px}.confirm-card{text-align:center;background:var(--surface);border:1px solid var(--line);border-radius:18px;padding:36px 40px}.confirm-emblem{margin:0 auto 20px;width:55px;height:55px;border-radius:50%;display:flex;align-items:center;justify-content:center;color:var(--purple);background:var(--lavender)}.confirm-emblem .icon{width:28px;height:28px}.confirm-card h1{font-size:26px;margin:9px 0 10px}.confirm-card>p{font-size:var(--font-small)}.confirm-facts{text-align:left;margin:28px 0;padding:18px 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.icon{color:#9d81c1}.dark .membership-banner{background:#382e46}.dark .membership-banner h2{color:#e3d4f9}.plans{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;margin-bottom:4px}.plan{padding:24px 21px;position:relative}.plan.featured{border-color:#ae95d1;background:var(--lavender)}.plan>.tag{position:absolute;right:12px;top:10px;font-size:var(--font-caption)}.plan h3{margin-top:10px}.plan-price{font-size:28px;font-weight:600;margin:19px 0}.plan-price small{font-size:var(--font-caption);color:var(--muted);font-weight:400}.plan p{font-size:var(--font-caption);line-height:2.3;margin-bottom:22px}.account-main>.muted{font-size:var(--font-caption);margin:0 0 22px}.ticket-card{display:flex;align-items:center;gap:18px;padding:24px}.ticket-symbol{width:40px;height:40px;background:var(--soft);color:var(--muted);border-radius:11px;display:flex;align-items:center;justify-content:center;flex-shrink:0}.ticket-card>div{flex:1;min-width:0}.ticket-card h3{font-size:15px}.ticket-card p{font-size:var(--font-caption);margin-top:7px}.ticket-card>.icon{width:15px;height:15px;color:var(--muted)}.ticket-context{padding:15px 23px;font-size:var(--font-caption);background:var(--soft);border-bottom:1px solid var(--line)}.ticket-context a{color:var(--purple)}.message-row{display:flex;align-items:flex-start;gap:13px;padding:24px}.message-row+.message-row{border-top:1px solid var(--line)}.message-row>div{flex:1;min-width:0}.message-row header{display:flex;align-items:center;justify-content:space-between;gap:15px;font-size:var(--font-caption)}.message-row time{font-size:var(--font-caption);color:var(--muted)}.message-row p{margin-top:12px;font-size:var(--font-small);white-space:pre-wrap;overflow-wrap:anywhere}.panel-body>form>label,.panel-body>label{margin-bottom:10px}.form-actions{display:flex;gap:16px;justify-content:flex-end;align-items:center;margin-top:20px}.form-actions .muted{font-size:var(--font-caption);margin-right:auto}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}.profile-avatar{display:flex;align-items:center;gap:15px;margin:20px 0 25px}.profile-avatar p{font-size:var(--font-caption);margin-top:4px}.device-line{display:flex;align-items:center;gap:14px;margin:20px 0}.device-line>.icon{width:30px;height:30px;color:var(--muted)}.device-line>div{flex:1}.device-line strong{font-weight:500;font-size:var(--font-small)}.device-line p{font-size:var(--font-caption);margin-top:5px}.wallet-banner{padding:28px;border:1px solid var(--line);border-radius:13px;background:var(--surface);margin-bottom:22px}.wallet-banner>span{font-size:var(--font-caption);color:var(--muted);display:block}.wallet-banner>strong{font-size:40px;font-weight:500;display:block;margin:9px 0}.wallet-banner>p{font-size:var(--font-caption);margin-bottom:22px}.wallet-banner .btn+.btn{margin-left:10px}.inline-form{display:flex;gap:12px}.inline-form input{min-width:0}.plain-row{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:16px 0}.plain-row strong{font-size:var(--font-small);font-weight:500}.plain-row small{display:block;color:var(--muted);font-size:var(--font-caption);margin-top:6px}.positive{color:var(--green)}.notification{display:flex;gap:16px;padding:24px;align-items:center}.notification>div{flex:1;min-width:0}.notification h3{font-size:var(--font-body)}.notification p{font-size:var(--font-caption);margin:7px 0}.notification small{font-size:var(--font-caption);color:var(--muted)}.notification>.icon{width:15px;height:15px;color:var(--muted)}.unread-dot{width:5px;height:5px;display:inline-block;background:var(--purple);border-radius:50%;margin:0 0 3px 10px}.cart-row{display:flex;align-items:center;gap:16px;padding:20px}.cart-row>img{width:100px;height:74px;object-fit:cover;border-radius:7px}.cart-row>div{flex:1;min-width:0}.cart-row h3{font-size:var(--font-body)}.cart-row p{font-size:var(--font-caption);margin-top:6px}.coupon{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:26px;background:var(--lavender);border:1px dashed #b8a3d7;border-radius:13px;margin-bottom:24px}.coupon>div>span{font-size:var(--font-caption);color:var(--purple)}.coupon strong{display:block;font-size:36px;font-weight:500;color:var(--purple)}.coupon p{font-size:var(--font-caption)}.coupon>div:last-child{display:flex;flex-direction:column;align-items:center;gap:18px}.help-steps{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}.step-number{font-size:32px;font-weight:300;color:#ac96c9;display:block;margin-bottom:15px}.help-steps h2{font-size:19px}.help-steps p{min-height:65px}.help-steps .text-link{font-size:var(--font-caption)}.help-contact{display:flex;align-items:center;justify-content:space-between;gap:22px;background:var(--lavender);padding:28px;border-radius:13px}.help-contact h2{font-size:23px}.help-contact p{font-size:var(--font-small);margin-top:8px}.guest-page{text-align:center;padding:100px 0}.guest-page>.icon{width:45px;height:45px;color:var(--purple);margin-bottom:20px}.guest-page p{margin:15px 0 25px}dialog{padding:0;border:1px solid var(--line);border-radius:16px;background:var(--surface);color:var(--text);width:min(540px,calc(100vw - 32px));max-height:calc(100dvh - 40px);box-shadow:0 24px 100px #20162f30;overflow:hidden}dialog[open]{display:flex;flex-direction:column}dialog::backdrop{background:#26203265;backdrop-filter:blur(4px)}.dialog-header{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:23px 25px 18px;flex-shrink:0;border-bottom:1px solid var(--line)}.dialog-header h2{font-size:20px}.dialog-body{overflow:auto;padding:24px 25px;min-height:0}.dialog-body>p{font-size:var(--font-small);margin-bottom:18px;line-height:1.9}.dialog-body label{margin-bottom:18px}.dialog-body .notice{margin:0 0 20px;font-size:var(--font-caption)}.dialog-footer{display:flex;align-items:center;justify-content:flex-end;gap:10px;border-top:1px solid var(--line);padding:16px 25px;flex-shrink:0}.dialog-course{display:flex;align-items:center;gap:15px;padding-bottom:20px;border-bottom:1px solid var(--line);margin-bottom:20px}.dialog-course>img{width:100px;height:75px;object-fit:cover;border-radius:8px}.dialog-course h3{font-size:var(--font-body)}.dialog-course p{font-size:var(--font-caption);margin-top:6px}.dialog-price{display:flex;align-items:center;justify-content:space-between;padding:13px 0;font-size:var(--font-small)}.dialog-price strong{font-size:23px;color:var(--purple)}.dialog-body .search-wide{margin-bottom:15px}.dialog-search-results>a{display:flex;padding:12px 0;align-items:center;justify-content:space-between;gap:12px;border-bottom:1px solid var(--line);font-size:var(--font-small)}.dialog-search-results small{color:var(--muted);white-space:nowrap}.dialog-success{text-align:center;padding:10px}.dialog-success>.icon{color:var(--green);width:45px;height:45px;margin-bottom:15px}.dialog-success h3{font-size:20px;margin-bottom:15px}.dialog-success p{font-size:var(--font-small)}.local-note{font-size:var(--font-caption);color:var(--muted);margin-top:18px}.download-link-preview{border:1px solid var(--line);border-radius:9px;padding:15px;margin:20px 0}.download-link-preview strong{display:block;font-size:var(--font-small)}.download-link-preview span{display:block;font-size:var(--font-caption);color:var(--muted);margin-top:8px}.two-buttons{display:flex;gap:10px;flex-wrap:wrap}.login-options{display:grid;grid-template-columns:1fr 1fr;gap:14px}.login-options .btn{white-space:normal;min-height:80px}#toast{position:fixed;left:50%;bottom:30px;transform:translateX(-50%) translateY(12px);max-width:calc(100vw - 32px);border:1px solid var(--line);border-radius:10px;background:var(--text);color:var(--surface);padding:12px 22px;box-shadow:0 6px 28px #18102520;font-size:var(--font-small);z-index:200;opacity:0;pointer-events:none;transition:opacity .15s,transform .15s}#toast.visible{opacity:1;transform:translateX(-50%) translateY(0)}
@media(min-width:1440px){.hero{min-height:470px}.hero-copy{padding:50px 58px}.hero h1{font-size:54px}.hero-actions{margin-top:30px}.hero-bottom{margin-top:34px}.course-info h3{font-size:16px}}
@media(max-width:1150px){:root{--gutter:30px}.hero-copy{padding:36px}.hero h1{font-size:42px}.hero{min-height:406px}.hero-actions{gap:17px}.hero-actions .text-link{font-size:var(--font-caption)}.category-strip a{padding:0 13px;gap:10px}.category-arrow{display:none}.category-icon{width:36px;height:36px}.course-grid{gap:17px}.course-info{padding:15px 14px 10px}.course-info h3{font-size:var(--font-body)}.course-info .price{font-size:17px}.course-info .price small{font-size:var(--font-caption)}.account-layout{grid-template-columns:182px minmax(0,1fr);gap:27px}.account-sidebar nav a{padding-inline:11px}.library-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.learning-two-col{grid-template-columns:minmax(0,1fr)}.entitlement{display:block}.main-nav{gap:26px}.detail-grid{grid-template-columns:minmax(0,1fr) 285px;gap:24px}.detail-title h1{font-size:25px}.purchase-panel{padding:24px 20px}.outcome-grid{gap:12px}.outcome-grid>div{padding:17px}.start-guide ol{gap:15px}.start-guide li{gap:8px}.plans{gap:12px}.plan{padding:21px 16px}.plan-price{font-size:24px}}
@media(max-width:900px){:root{--gutter:24px}.header-inner{gap:20px}.main-nav{gap:20px}.brand>span{font-size:16px}.brand img{width:30px;height:30px}.header-actions{gap:7px}.hero-copy{padding:30px}.hero h1{font-size:36px}.hero{min-height:390px;grid-template-columns:1fr .85fr}.hero-actions{align-items:flex-start;flex-direction:column;gap:14px}.hero-bottom{margin-top:22px;font-size:var(--font-caption);gap:11px}.hero-bottom span+span:before{margin-right:11px}.hero-art .art{object-position:45% center}.category-strip small{font-size:var(--font-caption)}.category-strip a strong{font-size:var(--font-caption)}.category-icon{width:31px;height:31px;border-radius:9px}.category-icon .icon{width:17px}.category-strip a{padding-inline:11px}.course-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.home .course-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.course-info h3{font-size:15px;min-height:26px}.course-meta{font-size:var(--font-caption)}.feature-banner{grid-template-columns:1fr 210px}.feature-banner>div:first-child{padding:30px}.feature-banner h2{font-size:23px}.detail-grid{grid-template-columns:minmax(0,1fr)}.purchase-panel{position:static;grid-row:1;display:grid;grid-template-columns:1fr 1fr;gap:0 24px}.purchase-panel>.eyebrow,.purchase-panel>.detail-price,.purchase-panel>h2,.purchase-panel>.tag,.purchase-panel>p{grid-column:1}.purchase-panel>.facts{grid-column:2;grid-row:1 / 5;margin:0;align-self:center}.purchase-panel>.btn{grid-column:1}.purchase-panel>.purchase-secondary{grid-column:2;margin-top:0}.purchase-panel>.side-note{grid-column:1 / -1;margin-top:17px}.detail-cover{aspect-ratio:2}.account-layout{grid-template-columns:164px minmax(0,1fr);gap:22px}.account-user{gap:9px}.account-user>.avatar{width:35px;height:35px;font-size:15px}.account-user strong{font-size:var(--font-small)}.account-user small{font-size:var(--font-caption)}.account-sidebar nav a{font-size:var(--font-caption);gap:10px}.account-heading h1{font-size:25px}.account-heading{flex-wrap:wrap;gap:14px}.learning-welcome{padding:22px}.learning-welcome h2{font-size:19px}.learning-welcome>.icon{width:37px;height:37px;margin:0}.learning-welcome p{font-size:var(--font-caption)}.library-title{flex-wrap:wrap;gap:13px}.search-small{max-width:100%;width:230px}.library-filters{gap:10px;flex-wrap:wrap}.library-filters .content-tabs{gap:22px}.library-filters>select{margin-bottom:10px}.library-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.library-grid .course-info h3{min-height:51px;font-size:var(--font-body)}.learning-course-head>img{width:120px;height:100px}.learning-course-head h1{font-size:20px}.learning-course-head{gap:16px}.start-guide ol{grid-template-columns:1fr}.order-id{display:block;margin:3px 0 0}.order-content>img{width:85px;height:65px}.order-content{gap:13px;padding:18px}.order-content h3{font-size:var(--font-small)}.order-price{font-size:15px}.plans{grid-template-columns:1fr}.plan{display:grid;grid-template-columns:1fr auto;gap:0 20px}.plan h3,.plan p,.plan-price{grid-column:1}.plan>.btn{grid-column:2;grid-row:2 / 4;align-self:end;width:auto}.plan p{margin:0}.plan-price{margin:9px 0}.plan>.tag{right:20px;top:20px}.membership-banner{display:block}.membership-banner .btn{margin-top:18px}.ticket-card{padding:20px;gap:12px}.ticket-card>.ticket-symbol{display:none}.cart-row{flex-wrap:wrap}.cart-row>div{flex:1 0 50%}.cart-row>.btn{margin-left:auto}.cart-row>.btn+.btn{margin-left:0}.help-steps{gap:12px}.help-steps .panel-body{padding:23px}.help-steps p{min-height:92px}.form-grid{grid-template-columns:1fr}.footer>div:not(.brand){gap:17px}}
@media(max-width:680px){:root{--gutter:20px}.preview-hint{display:none}.preview-bar{padding-inline:20px;font-size:var(--font-caption)}.preview-bar label{font-size:var(--font-caption);gap:4px}.preview-bar select{font-size:var(--font-caption)}.header-inner{min-height:71px;gap:12px}.brand small{font-size:8px;margin-top:3px}.brand>span{font-size:15px}.brand{gap:8px}.brand img{width:29px;height:29px}.header-actions{gap:6px}.header-actions>.icon-btn{width:30px;height:30px}.desktop-icon{display:none}.mobile-menu{display:inline-flex}.main-nav{display:none;position:absolute;top:103px;left:0;right:0;background:var(--surface);z-index:15;border-bottom:1px solid var(--line);padding:15px 20px;box-shadow:0 10px 20px #00000008;gap:23px}.main-nav.open{display:flex}.main-nav>a{font-size:var(--font-small);min-height:34px}.home{padding-top:20px}.hero{grid-template-columns:1fr;min-height:0;border-radius:15px}.hero-copy{padding:29px 26px}.kicker{font-size:var(--font-caption);margin-bottom:16px}.hero 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h1{font-size:27px}.footer{margin-top:40px;padding-top:25px;grid-template-columns:1fr;gap:13px}.footer>div:not(.brand){grid-column:1;grid-row:auto;font-size:var(--font-caption);gap:22px}.footer>small{font-size:var(--font-caption);margin-top:7px}.footer-brand{font-size:var(--font-small)}.dialog-header{padding:19px 20px 15px}.dialog-header h2{font-size:18px}.dialog-body{padding:21px 20px}.dialog-footer{padding:14px 20px;flex-wrap:wrap}.dialog-footer .btn{font-size:var(--font-caption);padding:8px 13px}.dialog-body label{font-size:var(--font-caption)}.dialog-course{gap:12px}.dialog-course>img{width:74px;height:64px}.dialog-course h3{font-size:var(--font-small)}.dialog-search-results>a{font-size:var(--font-caption)}.dialog-search-results small{font-size:var(--font-caption)}.login-options{grid-template-columns:1fr}#toast{font-size:var(--font-caption);text-align:center;width:max-content;bottom:20px}}
/* Programmatic route focus should not outline the whole page. Controls keep visible focus. */
#main:focus{outline:none}
.dialog-body label select{display:block;width:100%;margin-top:8px}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{transition:none!important;animation:none!important}}

.mobile-theme{display:none}@media(max-width:680px){.main-nav .mobile-theme{display:inline-flex;width:28px;height:28px;margin-left:auto}.header-actions>.btn.small{font-size:var(--font-caption);min-height:32px;padding:4px 7px}.header-actions{gap:5px}}