@import"https://fonts.googleapis.com/css2?family=Noto+Sans+TC:wght@400;500;600;700&display=swap";:root{--admin-navy:#0d2d3e;--admin-ink:#18394a;--admin-muted:#6c7e87;--admin-line:#d8e2e7;--admin-bg:#f3f7f8;--admin-teal:#168b91;--admin-cyan:#3cb4b3}.admin-app{min-height:100vh;background:var(--admin-bg);color:var(--admin-ink);font-family:Noto Sans TC,sans-serif}.admin-sidebar{position:fixed;inset:0 auto 0 0;width:248px;display:flex;flex-direction:column;color:#dbe9ed;background:var(--admin-navy);z-index:50}.admin-brand{height:84px;padding:0 25px;display:flex;align-items:center;gap:13px;border-bottom:1px solid rgba(255,255,255,.12)}.admin-brand img{width:38px;height:38px}.admin-brand span{font-size:19px;font-weight:700}.admin-brand strong{display:block;color:#72d2cf;font-size:12px;letter-spacing:.15em}.admin-sidebar nav{flex:1;padding:22px 14px;overflow:auto}.admin-sidebar nav section{margin-bottom:25px}.admin-sidebar nav h3{margin:0 13px 9px;color:#7997a4;font-size:12px;font-weight:500}.admin-sidebar nav button{width:100%;display:flex;align-items:center;gap:13px;padding:11px 13px;color:#c9d9df;border:0;border-radius:7px;background:none;text-align:left;cursor:pointer}.admin-sidebar nav button i{width:22px;color:#70bfc1;font-style:normal;text-align:center}.admin-sidebar nav button:hover,.admin-sidebar nav button.is-active{color:#fff;background:#174456}.admin-sidebar nav button.is-active{box-shadow:inset 3px 0 #5bd0ca}.admin-user{display:flex;align-items:center;gap:10px;padding:18px;border-top:1px solid rgba(255,255,255,.12)}.admin-user>span{display:grid;place-items:center;width:37px;height:37px;border-radius:50%;color:#123647;background:#78d1cd;font-weight:700}.admin-user div{flex:1}.admin-user strong,.admin-user small{display:block}.admin-user small{color:#8eacb8}.admin-user button{color:#fff;border:0;background:none}.admin-shell{margin-left:248px}.admin-topbar{height:68px;padding:0 34px;display:flex;align-items:center;justify-content:space-between;background:#fff;border-bottom:1px solid var(--admin-line);position:sticky;top:0;z-index:20}.admin-topbar>span{font-weight:700}.admin-topbar>div{display:flex;align-items:center;gap:13px}.admin-topbar button{width:37px;height:37px;border:1px solid var(--admin-line);border-radius:50%;background:#fff}.admin-topbar a{padding-left:15px;border-left:1px solid var(--admin-line);font-size:14px}.admin-topbar .has-alert{position:relative}.admin-topbar .has-alert:after{content:"";position:absolute;right:1px;top:1px;width:7px;height:7px;border-radius:50%;background:#e26b5d}.admin-menu{display:none}.admin-main{max-width:1440px;margin:auto;padding:38px 42px 70px}.admin-heading{display:flex;justify-content:space-between;align-items:end;margin-bottom:28px}.admin-heading p{margin:0 0 4px;color:var(--admin-muted);font-size:14px}.admin-heading h1{margin:0;font-size:31px}.admin-heading>a,.admin-primary{padding:10px 18px;color:#fff;border:0;border-radius:5px;background:var(--admin-teal);font-weight:700;cursor:pointer}.metric-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:15px;margin-bottom:18px}.metric-grid article{min-height:140px;padding:22px 24px;background:#fff;border-top:3px solid #d7e5e8}.metric-grid span{display:block;color:var(--admin-muted);font-size:14px}.metric-grid strong{display:block;margin:12px 0 7px;font-size:28px}.metric-grid small{color:#368f75}.metric-grid button{padding:0;color:var(--admin-teal);border:0;background:none;font-weight:700}.metric-grid .metric-alert{border-color:#e08e69}.metric-alert strong{color:#bf6249}.admin-dashboard-grid{display:grid;grid-template-columns:2fr 1fr;gap:18px}.admin-panel{background:#fff;border:1px solid var(--admin-line)}.admin-panel>header{display:flex;align-items:center;justify-content:space-between;padding:22px 25px;border-bottom:1px solid var(--admin-line)}.admin-panel h2{margin:0;font-size:18px}.admin-panel header p{margin:4px 0 0;color:var(--admin-muted);font-size:13px}.revenue-panel header>strong{font-size:22px}.bar-chart{height:245px;padding:25px 28px 18px;display:flex;align-items:end;gap:21px}.bar-chart>div{height:100%;flex:1;display:flex;flex-direction:column;justify-content:end;align-items:center;gap:9px;border-bottom:1px solid var(--admin-line)}.bar-chart span{width:65%;min-width:18px;background:linear-gradient(var(--admin-cyan),var(--admin-teal))}.bar-chart small{color:var(--admin-muted)}.task-panel{grid-row:span 2}.task-panel>button{width:100%;padding:20px 24px;display:flex;justify-content:space-between;border:0;border-bottom:1px solid var(--admin-line);background:#fff;text-align:left}.task-panel>button:hover{background:#f4fafb}.task-panel b{display:grid;place-items:center;width:27px;height:27px;border-radius:50%;color:#b75a48;background:#fff0ec}.recent-panel{grid-column:1/-1}.recent-panel header button,.course-manager header button{padding:0;color:var(--admin-teal);border:0;background:none;font-weight:700}.admin-badge{display:inline-block;padding:4px 8px;border-radius:4px;font-size:12px;white-space:nowrap}.admin-badge--success{color:#24755c;background:#e7f5ee}.admin-badge--warning{color:#a26c24;background:#fff4dc}.admin-badge--danger{color:#a94740;background:#fdeceb}.admin-badge--neutral{color:#5d7079;background:#eef2f4}.admin-toolbar{display:flex;gap:12px;align-items:center;margin-bottom:15px}.admin-toolbar input{width:min(430px,50vw)}.admin-toolbar input,.admin-toolbar select{height:42px;padding:0 13px;border:1px solid var(--admin-line);background:#fff}.admin-toolbar span{margin-left:auto;color:var(--admin-muted);font-size:13px}.admin-table-wrap{overflow:auto}.admin-table{width:100%;border-collapse:collapse;min-width:780px}.admin-table th{padding:13px 17px;color:#73858d;background:#f7f9fa;text-align:left;font-size:12px}.admin-table td{padding:15px 17px;border-top:1px solid #e4eaed;font-size:14px}.admin-table td small{display:block;margin-top:4px;color:var(--admin-muted)}.table-action{border:0;background:none;letter-spacing:2px;cursor:pointer}.admin-notice,.security-callout{margin-bottom:16px;padding:14px 17px;color:#276e66;background:#e8f5f2;border-left:3px solid var(--admin-teal)}.course-manager .admin-notice{margin:15px 24px 0}.course-admin-list article{display:grid;grid-template-columns:28px 1fr 85px 75px 75px 80px 35px;gap:12px;align-items:center;padding:17px 22px;border-top:1px solid var(--admin-line)}.course-admin-list small{display:block;color:var(--admin-muted)}.drag-handle{color:#8ba0aa;font-size:22px}.rank-actions{display:flex;gap:4px}.rank-actions button{width:31px;height:31px;border:1px solid var(--admin-line);background:#fff}.security-callout{display:grid;grid-template-columns:1fr auto;column-gap:25px}.security-callout strong{color:#9d443b}.security-callout p{margin:4px 0 0}.security-callout label{grid-row:1/3;grid-column:2;align-self:center}.content-admin-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}.content-admin-grid article{display:grid;grid-template-columns:50px 1fr auto;gap:16px;align-items:center;padding:22px;background:#fff;border:1px solid var(--admin-line)}.content-icon{display:grid;place-items:center;width:48px;height:48px;color:var(--admin-teal);background:#e8f4f4;font-size:22px}.content-admin-grid h2{margin:0;font-size:17px}.content-admin-grid p{margin:4px 0;color:var(--admin-muted)}.content-admin-grid small{color:#90a0a7}.content-admin-grid button{padding:8px 14px;color:var(--admin-teal);border:1px solid #a8c9ca;background:#fff}@media(max-width:1050px){.metric-grid{grid-template-columns:repeat(2,1fr)}.admin-dashboard-grid{grid-template-columns:1fr}.task-panel{grid-row:auto}.recent-panel{grid-column:auto}.course-admin-list article{grid-template-columns:26px 1fr 85px 70px}.course-admin-list label{display:none}}@media(max-width:760px){.admin-sidebar{transform:translate(-100%);transition:.2s}.admin-sidebar.is-open{transform:translate(0)}.admin-shell{margin-left:0}.admin-menu{display:block}.admin-topbar{padding:0 17px}.admin-topbar>div button{display:none}.admin-main{padding:25px 17px 55px}.admin-heading{align-items:start}.admin-heading h1{font-size:25px}.metric-grid{grid-template-columns:1fr 1fr}.metric-grid article{min-height:125px;padding:17px}.metric-grid strong{font-size:22px}.content-admin-grid{grid-template-columns:1fr}.admin-toolbar{flex-wrap:wrap}.admin-toolbar input{width:100%}.security-callout{display:block}.security-callout label{display:block;margin-top:13px}.course-admin-list article{grid-template-columns:23px 1fr 70px 35px}.course-admin-list .rank-actions{display:none}}.admin-topbar>a{font-size:14px}.admin-link-button{padding:0;color:var(--admin-teal);border:0;background:none;font-weight:700;cursor:pointer;white-space:nowrap}.admin-notice.is-error{color:#963f38;background:#fff0ee;border-color:#d76b60}.admin-empty{padding:58px 25px;color:var(--admin-muted);text-align:center}.admin-empty strong{display:block;color:var(--admin-ink);font-size:18px}.admin-empty p{margin:7px 0}.course-admin-list article{grid-template-columns:28px 1fr 85px 75px 75px 80px 65px}.status-toggle{padding:7px 10px!important;color:#65777f!important;border:1px solid var(--admin-line)!important;background:#eef2f4!important;white-space:nowrap;cursor:pointer}.status-toggle.is-on{color:#24755c!important;background:#e7f5ee!important;border-color:#cce8dc!important}.content-admin-grid article{grid-template-columns:50px 1fr auto auto}.content-admin-grid button{cursor:pointer}.admin-list article{display:grid;grid-template-columns:52px 1fr auto auto;gap:17px;align-items:center;padding:18px 22px;border-top:1px solid var(--admin-line)}.admin-list article:first-child{border-top:0}.admin-list h2,.admin-list p{margin:0}.admin-list p,.admin-list small{color:var(--admin-muted)}.admin-avatar{width:48px;height:48px;display:grid;place-items:center;border-radius:50%;overflow:hidden;color:#fff;background:var(--admin-teal);font-weight:700}.admin-avatar img{width:100%;height:100%;object-fit:cover}.admin-drawer-layer{position:fixed;top:0;right:0;bottom:0;left:0;z-index:100;display:flex;justify-content:flex-end;background:#061d286b}.admin-drawer{width:min(510px,100%);height:100%;overflow:auto;background:#fff;box-shadow:-20px 0 45px #0a27342e}.admin-drawer.is-wide{width:min(680px,100%)}.admin-drawer>header{position:sticky;top:0;z-index:2;display:flex;align-items:center;justify-content:space-between;padding:21px 25px;border-bottom:1px solid var(--admin-line);background:#fff}.admin-drawer h2{margin:0;font-size:21px}.admin-drawer>header button{width:36px;height:36px;border:0;background:none;font-size:27px}.admin-form{display:grid;gap:18px;padding:25px}.admin-field{display:grid;gap:7px}.admin-field>span{font-size:13px;font-weight:700}.admin-field input,.admin-field select,.admin-field textarea{width:100%;padding:10px 12px;border:1px solid #bdcbd1;background:#fff;font:inherit;box-sizing:border-box}.admin-field textarea{resize:vertical}.admin-checks{display:flex;gap:22px}.admin-form-actions{display:flex;align-items:center;justify-content:flex-end;gap:10px;padding-top:10px;border-top:1px solid var(--admin-line)}.admin-form-actions>span{flex:1}.admin-form-actions button{padding:9px 15px;border:1px solid var(--admin-line);background:#fff;cursor:pointer}.admin-form-actions .admin-primary{border:0;background:var(--admin-teal)}.danger-button{color:#af443d!important;border-color:#e7bbb7!important}.admin-app button:focus-visible,.admin-app a:focus-visible,.admin-app input:focus-visible,.admin-app textarea:focus-visible,.admin-app select:focus-visible{outline:3px solid rgba(60,180,179,.35);outline-offset:2px}@media(max-width:1050px){.course-admin-list article{grid-template-columns:26px 1fr 85px 70px 65px}.course-admin-list label{display:none}.content-admin-grid article{grid-template-columns:48px 1fr auto}.content-admin-grid .status-toggle{grid-column:2}}@media(max-width:760px){.admin-topbar>div{display:none}.course-admin-list article{grid-template-columns:23px 1fr 70px 54px}.course-admin-list .rank-actions,.course-admin-list label{display:none}.content-admin-grid article{grid-template-columns:44px 1fr}.content-admin-grid article>button{grid-column:2}.admin-list article{grid-template-columns:46px 1fr auto}.admin-list .admin-badge{display:none}.admin-form-actions{flex-wrap:wrap}}.admin-topbar-actions{display:flex;align-items:center;gap:18px}.admin-topbar-actions a{font-size:14px}.admin-topbar .admin-logout{width:auto;height:auto;padding:7px 12px;border-radius:4px;color:#8f3e39;background:#fff7f6}.admin-login{min-height:100vh;display:grid;place-items:center;padding:24px;background:linear-gradient(120deg,#0d2d3e 0,#0d2d3e 38%,#f3f7f8 38%)}.admin-login>section{width:min(430px,100%);padding:38px;background:#fff;border-top:5px solid var(--admin-teal);box-shadow:0 28px 70px #031c283d}.admin-login-brand{display:flex;align-items:center;gap:12px;margin-bottom:38px;color:var(--admin-ink);font-size:21px;font-weight:800}.admin-login-brand img{width:42px;height:42px}.admin-login-brand small{display:block;color:var(--admin-teal);font-size:12px;letter-spacing:.13em}.admin-login>section>div>p{margin:0;color:var(--admin-teal);font-size:13px;font-weight:700}.admin-login h1{margin:5px 0 7px;font-size:30px}.admin-login>section>div>span{color:var(--admin-muted)}.admin-login form{display:grid;gap:18px;margin-top:28px}.admin-login form .admin-primary{width:100%;padding:12px}.admin-login-error{padding:11px 13px;color:#963f38;background:#fff0ee;border-left:3px solid #d76b60;font-size:13px}.admin-login-back{display:block;margin-top:24px;color:var(--admin-muted);font-size:13px;text-align:center}@media(max-width:760px){.admin-topbar-actions{display:flex!important}.admin-topbar-actions a{display:none}.admin-login{background:#0d2d3e}.admin-login>section{padding:28px 23px}}:root{--admin-glass-border:rgba(127,166,183,.34);--admin-glass:rgba(255,255,255,.76);--admin-glass-shadow:0 18px 48px rgba(13,59,80,.1),inset 0 1px 0 rgba(255,255,255,.86);--admin-radius-xl:28px;--admin-radius-lg:20px;--admin-radius-md:14px}.admin-app{background:radial-gradient(circle at 82% 4%,rgba(82,190,191,.14),transparent 25%),linear-gradient(145deg,#f7fbfc,#eef5f7)}.admin-sidebar{margin:10px;height:calc(100vh - 20px);border:1px solid rgba(255,255,255,.12);border-radius:26px;overflow:hidden;box-shadow:0 22px 55px #04243338,inset 0 1px #ffffff1a}.admin-shell{margin-left:268px;padding-top:10px}.admin-topbar{top:10px;width:calc(100% - 20px);height:62px;padding:0 24px;border:1px solid var(--admin-glass-border);border-radius:20px;background:#ffffffbd;box-shadow:var(--admin-glass-shadow);backdrop-filter:blur(24px) saturate(145%);-webkit-backdrop-filter:blur(24px) saturate(145%)}.admin-panel,.metric-grid article,.content-admin-grid article,.security-callout,.admin-toolbar input,.admin-toolbar select{border:1px solid var(--admin-glass-border);border-radius:var(--admin-radius-lg);background:var(--admin-glass);box-shadow:var(--admin-glass-shadow);backdrop-filter:blur(18px) saturate(130%);-webkit-backdrop-filter:blur(18px) saturate(130%)}.metric-grid article{overflow:hidden}.admin-panel{overflow:hidden}.admin-panel>header{background:#ffffff6b}.admin-table th{background:#eff6f8b3}.admin-table-wrap{border-radius:0 0 var(--admin-radius-lg) var(--admin-radius-lg)}.admin-primary,.admin-heading>a{border-radius:14px;box-shadow:inset 0 1px #ffffff59,0 8px 20px #147e842e}.admin-toolbar input,.admin-toolbar select{box-shadow:inset 0 1px #fffc}.security-callout,.admin-notice{border-left:3px solid var(--admin-teal);border-radius:var(--admin-radius-md)}.content-icon,.admin-avatar,.admin-badge,.status-toggle,.rank-actions button,.content-admin-grid button,.admin-form-actions button{border-radius:12px!important}.admin-drawer{margin:10px;height:calc(100% - 20px);border:1px solid var(--admin-glass-border);border-radius:28px;background:#ffffffdb;box-shadow:-24px 0 60px #0a273433;backdrop-filter:blur(26px) saturate(140%);-webkit-backdrop-filter:blur(26px) saturate(140%)}.admin-drawer>header{background:#ffffffb8;backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px)}.admin-field input,.admin-field select,.admin-field textarea{border-radius:14px;background:#ffffffb8;box-shadow:inset 0 1px #ffffffe6}.admin-login{background:radial-gradient(circle at 70% 15%,rgba(62,190,190,.22),transparent 27%),linear-gradient(125deg,#0b2a3a 0,#0b2a3a 38%,#edf5f7 38%)}.admin-login>section{border:1px solid rgba(255,255,255,.7);border-top:5px solid var(--admin-teal);border-radius:30px;background:#ffffffd1;box-shadow:0 32px 80px #031c2842,inset 0 1px #fff;backdrop-filter:blur(28px) saturate(140%);-webkit-backdrop-filter:blur(28px) saturate(140%)}@supports not ((backdrop-filter:blur(1px)) or (-webkit-backdrop-filter:blur(1px))){.admin-topbar,.admin-panel,.metric-grid article,.content-admin-grid article,.admin-drawer,.admin-login>section{background:#fff}}@media(max-width:760px){.admin-sidebar{margin:7px;height:calc(100vh - 14px)}.admin-shell{margin-left:0;padding-top:7px}.admin-topbar{top:7px;width:calc(100% - 14px);margin:auto}.admin-main{padding-top:22px}.admin-drawer{margin:6px;height:calc(100% - 12px);border-radius:22px}.admin-login>section{border-radius:24px}}.learning-admin-panel{padding:28px;margin-bottom:28px}.learning-admin-panel h2{color:#155f8a;margin:8px 0 18px}.learning-admin-panel p,.admin-question p{line-height:1.8;white-space:pre-wrap}.learning-admin-panel details{margin:22px 0}.learning-admin-panel summary{cursor:pointer;font-weight:600}.curriculum-editor{margin:15px 0}.curriculum-editor__node{border-left:3px solid #b6dce8;padding:14px 0 14px 16px;margin:10px 0;background:#f6fbfd}.curriculum-editor__node>header{display:flex;align-items:center;gap:8px;padding-right:12px}.curriculum-editor__node>header>span{white-space:nowrap;font-size:12px;color:#176f9f}.curriculum-editor__node>header>input{flex:1;min-width:0;padding:8px}.curriculum-editor__node button,.tree-add-actions button,.enrollment-item button{padding:7px 10px;color:#155f8a;background:#fff;border:1px solid #bdd6e1;border-radius:4px;cursor:pointer}.tree-add-actions{display:flex;gap:10px}.lesson-editor-fields{display:grid;grid-template-columns:2fr 1fr 1fr;gap:12px;padding:16px 16px 0 0}.lesson-editor-fields label,.test-access-form label{font-size:13px;font-weight:600}.lesson-editor-fields input,.lesson-editor-fields textarea,.test-access-form input{display:block;width:100%;margin-top:8px;padding:9px;border:1px solid #bdd6e1;border-radius:4px;font:inherit}.lesson-editor-notes{grid-column:1/-1}.test-access-form{display:flex;align-items:end;gap:20px;margin-bottom:24px}.test-access-form label{flex:1}.enrollment-item{display:flex;flex-wrap:wrap;align-items:center;gap:16px;padding:17px 0;border-bottom:1px solid #dce9ee}.admin-question{padding:22px 0;border-bottom:1px solid #dce9ee}.admin-question>strong{color:#155f8a}.static-page-fields{display:grid;grid-template-columns:1fr 1fr;gap:22px;margin-top:25px}.static-preview{width:100%;min-height:450px;border:1px solid #bdd6e1;background:#fff}@media(max-width:750px){.learning-admin-panel{padding:18px}.curriculum-editor__node{padding-left:10px}.curriculum-editor__node>header{flex-wrap:wrap}.curriculum-editor__node>header>input{flex-basis:70%}.lesson-editor-fields{grid-template-columns:1fr 1fr}.lesson-editor-fields label:first-child{grid-column:1/-1}.test-access-form{display:block}.test-access-form button{margin-top:15px}.static-page-fields{grid-template-columns:1fr}.admin-toolbar select{max-width:100%}}.bunny-config-form{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.bunny-config-form p,.bunny-config-form>button{grid-column:1/-1}.bunny-config-form>button{justify-self:start}.bunny-upload-form{max-width:720px}.bunny-upload-actions{display:flex;gap:12px;align-items:center;margin:16px 0}.bunny-progress{margin-top:20px;padding:20px;background:#f2f8fb;border-radius:12px}.bunny-progress progress{display:block;width:100%;height:14px;accent-color:#2389a2;margin-bottom:8px}.bunny-progress code,.admin-table code{font-size:12px;overflow-wrap:anywhere}.bunny-config-form p{font-size:13px;color:#64788a;margin:0}.bunny-upload-form input[type=file]{padding:12px;border:1px dashed #b5ccd8;background:#f8fbfd}.bunny-upload-form input[type=file]::file-selector-button{padding:8px 14px;border:0;border-radius:6px;background:#e1eff5;color:#155f8a;margin-right:12px;cursor:pointer}@media(max-width:1000px){.bunny-config-form{grid-template-columns:1fr}}.bunny-video-preview{max-width:960px;margin-top:25px}.bunny-video-preview iframe{display:block;width:100%;aspect-ratio:16/9;border:0;border-radius:12px;background:#102c3b;margin-bottom:15px}.catalog-layout{display:grid;grid-template-columns:245px 1fr;gap:40px;width:min(1320px,calc(100% - 48px));margin:48px auto 90px;align-items:start}.catalog-filters{position:sticky;top:120px;padding:28px 24px;background:#fff;border:1px solid #d5e6ee;border-top:4px solid var(--cyan);border-radius:16px;box-shadow:0 8px 28px #155f8a08}.catalog-filters h2{margin:0 0 26px;font-size:21px;color:var(--ink)}.catalog-filters label,.course-community form label{display:block;margin:0 0 20px;font-weight:600}.catalog-filters input,.catalog-filters select,.catalog-heading select,.course-community select,.course-community textarea{display:block;width:100%;margin-top:8px;padding:11px;color:#405965;border:1px solid #b9d3df;border-radius:4px;background:#fff;font:inherit}.catalog-filters p{margin-top:25px;font-size:13px;line-height:1.8}.catalog-filters button,.community-item>button{border:1px solid #c4dce8;border-radius:8px;background:#f4fafc;color:var(--blue);padding:10px 16px;font:inherit;cursor:pointer;transition:background .2s,border-color .2s}.catalog-filters button:hover,.community-item>button:hover{background:#e3f3f8;border-color:var(--cyan)}.catalog-heading{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-bottom:22px;color:var(--ink)}.catalog-heading p{font-size:22px;margin:0}.catalog-heading label{display:flex;align-items:center;gap:12px}.catalog-heading select{width:auto;margin:0}.catalog-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:30px 22px}.course-card{transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease}.course-card__image{display:block;position:relative;overflow:hidden;background:#eaf3f7}.course-card__image>img{position:absolute;top:0;right:0;bottom:0;left:0;width:100%;height:100%;object-fit:cover;transition:transform .45s ease}.course-card__explore{position:absolute;right:16px;bottom:16px;display:flex;align-items:center;gap:20px;padding:10px 16px;border-radius:30px;background:#fff;color:#155f8a;font-size:13px;font-weight:700;box-shadow:0 4px 18px #12374626;opacity:0;transform:translateY(8px);transition:opacity .25s,transform .25s}.course-card__category{display:block;color:#26889b;font-size:12px;font-weight:600;letter-spacing:.02em;margin-bottom:8px}.course-card:focus-within{border-color:#33a9b9;box-shadow:0 14px 35px #155f8a20}.course-card:focus-within .course-card__explore{opacity:1;transform:translateY(0)}@media(hover:hover){.course-card:hover{transform:translateY(-6px);border-color:#9bc9d8;box-shadow:0 18px 40px #155f8a23}.course-card:hover .course-card__image>img{transform:scale(1.045)}.course-card:hover .course-card__explore{opacity:1;transform:translateY(0)}.course-card:hover h3{color:var(--blue)}}.catalog-grid .course-card{display:flex;flex-direction:column;min-height:0;background:#fff;border:1px solid #d5e6ee;border-radius:18px;box-shadow:0 4px 18px #155f8a07}.catalog-grid .course-card__image{aspect-ratio:1;min-height:0;flex-shrink:0;border-bottom:1px solid #edf3f6}.catalog-grid .course-card__body{padding:24px 22px;flex:1;gap:14px}.catalog-grid .course-card__students{display:none}.catalog-grid .course-card__category{margin:0}.catalog-grid .course-card h3{font-size:18px;line-height:1.6;margin:0;color:#234e66;transition:color .2s}.catalog-grid .course-card p{font-size:13px;color:#71838e;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}.catalog-grid .course-card__price{padding-top:18px;color:#155f8a;border-color:#e4eef3}.catalog-grid .course-card__price strong{font-size:23px}.catalog-grid .course-card__price del{color:#8497a3}.catalog-results{min-width:0}.course-card__price{letter-spacing:0;display:flex;gap:8px;flex-wrap:wrap;align-items:center}.course-card__price del{width:100%;font-weight:400;font-size:12px}.discount-label{padding:2px 7px;background:#e1f4f5;color:#176f9f;font-size:12px}.course-source-link{display:block;margin-top:20px;color:var(--blue);text-decoration:underline}.course-gallery{min-width:0}.course-gallery>img{display:block;width:100%;aspect-ratio:1;object-fit:cover;background:#f2f8fb;border-radius:18px}.course-gallery__controls{display:flex;align-items:center;justify-content:space-between;padding:10px 0}.course-gallery__controls button{font-size:27px;background:#fff;border:1px solid #c5dce8;color:var(--ink);padding:2px 16px;cursor:pointer}.course-gallery__thumbs{display:flex;gap:8px;overflow:auto}.course-gallery__thumbs button{flex:0 0 70px;padding:3px;background:#fff;border:2px solid transparent;cursor:pointer}.course-gallery__thumbs button[aria-pressed=true]{border-color:var(--cyan)}.course-gallery__thumbs img{display:block;width:100%;height:55px;object-fit:cover}.course-community{width:min(1120px,calc(100% - 48px));margin:40px auto 90px;background:#fff;padding:30px 40px}.course-tabs{display:flex;border-bottom:1px solid #c5dce8;gap:25px;margin-bottom:32px;overflow:auto}.course-tabs button{white-space:nowrap;padding:15px 3px;background:transparent;border:0;border-bottom:3px solid transparent;color:#5d6f78;font:inherit;cursor:pointer}.course-tabs button[aria-selected=true]{color:var(--blue);border-color:var(--cyan);font-weight:700}.course-community h3{color:var(--ink)}.course-community p{line-height:1.85}.course-community form{max-width:720px;margin:25px 0}.course-community form small{display:block;margin-top:12px}.course-community textarea{resize:vertical}.course-community .primary-action{margin-top:0}.source-note{background:var(--pale);padding:16px 20px;font-size:13px}.course-html{line-height:1.9;overflow-wrap:anywhere}.course-html img{max-width:100%;height:auto;display:block;margin:20px auto}.course-html table{max-width:100%;width:auto!important;overflow:auto;display:block}.course-html td,.course-html th{padding:8px}.course-html a{color:var(--blue);text-decoration:underline}.community-item{padding:22px 0;border-top:1px solid #dbe9ee}.community-item p,.lesson-notes p{white-space:pre-wrap}.community-item strong{color:var(--ink)}.community-item strong span{margin-left:15px;color:#ab801e}.community-item blockquote{margin:18px 0 0;padding:16px 20px;background:var(--pale);border-left:3px solid var(--cyan)}.curriculum{list-style:none;margin:0;padding:0}.curriculum .curriculum{padding-left:15px}.curriculum summary{padding:14px 5px;cursor:pointer;color:var(--ink);font-weight:700}.curriculum button{display:flex;justify-content:space-between;gap:15px;width:100%;text-align:left;padding:14px 12px;border:0;background:transparent;color:#405965;font:inherit;cursor:pointer}.curriculum button.is-active{background:#e2f3f9;border-left:3px solid var(--cyan)}.curriculum small{white-space:nowrap}.curriculum button:disabled{opacity:1;cursor:default}.learning-layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:28px;width:min(1320px,calc(100% - 48px));margin:45px auto}.learning-layout h2,.learning-layout h3{color:var(--ink)}.learning-layout h2{font-size:27px}.learning-layout aside{background:#fff;padding:20px;align-self:start;max-height:75vh;overflow:auto;position:sticky;top:120px}.learning-player iframe{display:block;width:100%;aspect-ratio:16/9;border:0;background:#102c3b}.player-empty{display:grid;place-items:center;aspect-ratio:16/9;background:#e0edf4;text-align:center;padding:30px;color:var(--ink)}.watch-timeline{position:relative;height:12px;margin:18px 0;background:#cedfe8;overflow:hidden}.watch-timeline span{position:absolute;height:100%;background:var(--cyan)}.watch-timeline i{position:absolute;height:100%;width:3px;background:var(--ink)}.watch-controls{display:flex;align-items:center;gap:25px}.watch-controls>span{white-space:nowrap}.watch-controls label{display:flex;align-items:center;gap:15px;flex:1;font-size:13px}.watch-controls input{flex:1;min-width:0;accent-color:var(--blue)}.lesson-notes{padding:20px;background:#fff;margin-top:25px}.my-learning{width:min(1050px,calc(100% - 48px));margin:40px auto 90px}.my-learning>a{display:flex;align-items:center;gap:25px;padding:22px 0;border-bottom:1px solid #c5dce8}.my-learning img{width:130px;height:90px;object-fit:contain}.my-learning h3{color:var(--ink)}.purchase-bar button:disabled{opacity:.5;cursor:default}.course-price del{font-size:13px}.buy-now{display:flex;align-items:center;justify-content:center}:where(button,a,input,select,textarea,summary):focus-visible{outline:3px solid #33a9b9;outline-offset:3px}@media(min-width:1200px){.header .nav{gap:9px}.header .search--compact{max-width:230px}.header .pill{padding-inline:11px}}@media(max-width:1150px){.catalog-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.learning-layout{grid-template-columns:minmax(0,1fr) 270px}}@media(max-width:780px){.catalog-layout{grid-template-columns:1fr;gap:25px;width:calc(100% - 32px);margin-top:25px}.catalog-filters{position:static;display:grid;grid-template-columns:1fr 1fr;gap:15px;padding:20px}.catalog-filters h2,.catalog-filters p{grid-column:1/-1;margin:0}.catalog-filters label{margin:0}.catalog-filters label:first-of-type{grid-column:1/-1}.catalog-filters button{align-self:end}.catalog-grid{gap:18px 12px}.catalog-grid .course-card__body{padding:15px 12px}.catalog-grid .course-card h3{font-size:16px}.catalog-heading label{font-size:13px}.catalog-heading select{max-width:145px}.course-community{padding:20px;width:calc(100% - 32px)}.course-tabs{gap:18px}.learning-layout{grid-template-columns:1fr;width:calc(100% - 32px)}.learning-layout aside{position:static;max-height:none}.watch-controls{gap:10px;font-size:12px}.watch-controls label{flex-direction:column;align-items:stretch;gap:0}.course-detail__summary{padding-top:20px}}@media(max-width:520px){.catalog-grid{grid-template-columns:1fr;gap:24px}.catalog-grid .course-card__body{padding:24px}.catalog-grid .course-card h3{font-size:19px}.catalog-grid .course-card p{font-size:14px}.catalog-grid .course-card__category{font-size:12px}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{animation:none!important;transition:none!important}}:root{--blue: #176f9f;--cyan: #33a9b9;--ink: #155f8a;--pale: #eef8fd;--line: #a8bdc8}*{box-sizing:border-box}html{min-height:100%;scroll-behavior:smooth;background:#edf7fb}body{min-height:100vh;margin:0;color:#5d6f78;font-family:Noto Sans TC,sans-serif;background:transparent;isolation:isolate}body:before{content:"";position:fixed;z-index:-2;top:0;right:0;bottom:0;left:0;pointer-events:none;background:radial-gradient(circle at 8% 18%,rgba(139,214,226,.2),transparent 30%),radial-gradient(circle at 88% 78%,rgba(23,111,159,.1),transparent 34%),linear-gradient(180deg,#f9fdff,#edf7fb)}a{color:inherit;text-decoration:none}button,input{font:inherit}.header{position:fixed;z-index:20;top:0;left:0;display:flex;align-items:center;width:100%;height:100px;padding:0 30px;color:#fff;transition:.3s ease}.header--solid{height:100px;color:var(--ink);background:#fffffff7;box-shadow:0 8px 25px #1155781f}.logo{width:195px;height:78px;display:flex;align-items:center;border-radius:18px;transition:background-color .22s ease,transform .22s ease}.logo img{width:146px;height:auto;transition:transform .22s ease,filter .22s ease}.logo:hover{background:#ffffff1a;transform:translateY(-1px)}.logo:hover img{transform:scale(1.035);filter:drop-shadow(0 5px 10px rgba(0,40,65,.16))}.nav{display:flex;align-items:center;flex:1;gap:16px;font-weight:600}.nav__spacer{flex:1}.category-wrap{position:relative}.category{display:flex;align-items:center;min-height:42px;padding:0 12px;color:inherit;border:1px solid transparent;border-radius:16px;background:transparent;white-space:nowrap;cursor:pointer;font-weight:700;transition:background-color .22s ease,border-color .22s ease,transform .22s ease}.category:hover,.category:focus-visible{border-color:#ffffff42;background:#ffffff1f;transform:translateY(-1px);outline:none}.header--solid .category:hover,.header--solid .category:focus-visible{border-color:#3a8caa33;background:#4da9bc1a}.category i{display:inline-block;position:relative;margin-left:9px;width:22px;height:22px;border-radius:50%;background:#fff;transition:transform .2s ease}.category i:after{content:"";position:absolute;left:7px;top:6px;width:7px;height:7px;border-right:2px solid var(--blue);border-bottom:2px solid var(--blue);transform:rotate(45deg)}.category i.is-open{transform:rotate(180deg)}.header--solid .category i{background:#4a91ba}.header--solid .category i:after{border-color:#fff}.category-menu{position:absolute;top:38px;left:-28px;width:225px;padding:25px 30px;color:#07517c;border-radius:0 0 20px 20px;background:#fff;box-shadow:0 16px 28px #0e4f732e}.category-menu a{display:block;margin:2px -12px;padding:9px 12px;border-radius:12px;font-size:18px;transition:color .18s ease,background-color .18s ease,transform .18s ease}.category-menu a:hover,.category-menu a:focus-visible{color:var(--blue);background:#33a9b91f;transform:translate(3px);outline:none}.pill{padding:7px 15px 8px;border:1px solid currentColor;border-radius:28px;white-space:nowrap;transition:color .22s ease,background-color .22s ease,border-color .22s ease,box-shadow .22s ease,transform .22s ease}.pill:hover,.pill:focus-visible{color:var(--ink);border-color:#ffffffb8;background:#ffffffdb;box-shadow:0 10px 24px #00304b29,inset 0 1px #fff;transform:translateY(-2px);outline:none}.header--solid .pill:hover,.header--solid .pill:focus-visible{color:#fff;border-color:transparent;background:linear-gradient(100deg,var(--blue),var(--cyan))}.pill--small{padding-inline:17px}.nav__dash{opacity:.7}.cart-link{position:relative;display:flex;align-items:center;gap:7px;min-height:42px;padding:7px 13px;border:1px solid rgba(255,255,255,.34);border-radius:17px;background:#ffffff1a;white-space:nowrap;transition:color .22s ease,background-color .22s ease,border-color .22s ease,box-shadow .22s ease,transform .22s ease}.cart-link__icon{font-size:20px;line-height:1;transition:transform .22s ease}.cart-link__label{font-size:14px;font-weight:700}.cart-link b{display:grid;place-items:center;min-width:20px;height:20px;padding:0 5px;color:#fff;border-radius:10px;background:var(--cyan);font-size:11px}.cart-link:hover,.cart-link:focus-visible{color:var(--ink);border-color:#ffffffb8;background:#ffffffe0;box-shadow:0 10px 24px #00304b29,inset 0 1px #fff;transform:translateY(-2px);outline:none}.cart-link:hover .cart-link__icon,.cart-link:focus-visible .cart-link__icon{transform:translate(2px) rotate(-4deg)}.header--solid .cart-link{border-color:#3a8caa3d;background:#4da9bc14}.header--solid .cart-link:hover,.header--solid .cart-link:focus-visible{color:#fff;border-color:transparent;background:linear-gradient(100deg,var(--blue),var(--cyan))}.profile-menu{position:relative}.profile-menu summary{display:flex;align-items:center;gap:9px;min-height:44px;padding:5px 11px 5px 6px;border:1px solid rgba(255,255,255,.38);border-radius:22px;background:#ffffff1a;list-style:none;cursor:pointer;transition:background-color .22s ease,border-color .22s ease,box-shadow .22s ease,transform .22s ease}.profile-menu summary::-webkit-details-marker{display:none}.profile-menu summary:hover,.profile-menu summary:focus-visible,.profile-menu[open] summary{color:var(--ink);border-color:#ffffffb8;background:#ffffffe0;box-shadow:0 10px 24px #00304b29;transform:translateY(-1px);outline:none}.profile-menu summary img{width:32px;height:32px;border-radius:50%;object-fit:cover}.profile-menu summary span{max-width:110px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:14px}.profile-menu summary i{width:7px;height:7px;margin:0 3px 4px 1px;border-right:2px solid currentColor;border-bottom:2px solid currentColor;transform:rotate(45deg);transition:transform .2s ease}.profile-menu[open] summary i{margin-bottom:-3px;transform:rotate(225deg)}.header--solid .profile-menu summary{border-color:#3a8caa3d;background:#4da9bc14}.profile-menu__panel{position:absolute;z-index:30;top:53px;right:0;width:245px;padding:14px;color:var(--ink);border:1px solid var(--glass-border);border-radius:20px;background:#fffffff0;box-shadow:var(--glass-shadow);backdrop-filter:blur(24px) saturate(145%);-webkit-backdrop-filter:blur(24px) saturate(145%)}.profile-menu__panel>div{padding:5px 7px 13px;border-bottom:1px solid rgba(110,151,169,.22)}.profile-menu__panel strong,.profile-menu__panel small{display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.profile-menu__panel small{margin-top:3px;color:#6f8792;font-weight:400}.profile-menu__panel a,.profile-menu__panel button{display:block;width:100%;margin-top:7px;padding:10px 11px;color:inherit;border:0;border-radius:12px;background:transparent;text-align:left;cursor:pointer;font-weight:600}.profile-menu__panel a:hover,.profile-menu__panel button:hover{background:#33a9b91f}.menu-button{display:none}.search{display:flex;align-items:center;width:min(435px,90vw);height:50px;padding:0 18px;border-radius:28px;color:var(--ink);background:#fff;box-shadow:0 3px 14px #003f5f2e}.search strong{white-space:nowrap}.search__divider{width:1px;height:20px;margin:0 11px;background:#a8aeb1}.search input{min-width:0;flex:1;border:0;outline:0;color:#687c86;background:transparent}.search input::placeholder{color:#b7b8ba}.search button{width:32px;height:32px;border:0;background:transparent;cursor:pointer}.search button span{display:block;position:relative;width:18px;height:18px;border:3px solid var(--ink);border-radius:50%}.search button span:after{content:"";position:absolute;width:9px;height:3px;right:-7px;bottom:-4px;transform:rotate(48deg);background:var(--ink)}.search--compact{width:345px;height:43px;color:currentColor;border:1px solid currentColor;box-shadow:none;background:transparent}.search--compact input{color:currentColor}.search--compact button span{border-color:currentColor}.search--compact button span:after{background:currentColor}.hero{position:relative;height:750px;color:#fff;overflow:hidden}.hero__slides,.hero__slide{position:absolute;top:0;right:0;bottom:0;left:0}.hero__slide{opacity:0;background-position:center;background-size:cover;transform:scale(1.02);transition:opacity 1s ease,transform 7s ease}.hero__slide.is-active{opacity:1;transform:scale(1)}.hero__content{position:relative;z-index:2;width:min(862px,calc(100% - 48px));margin:0 auto;padding-top:265px}.hero h1{margin:0 0 30px;font-size:52px;line-height:1.55;letter-spacing:.12em;text-shadow:0 2px 8px rgba(0,29,48,.25)}.hero h1 span{display:block;font-size:42px}.hero__pagination{position:absolute;z-index:3;right:20%;bottom:38px;display:flex;gap:12px}.hero__pagination button{width:30px;padding:4px 0;color:#fff;border:0;border-radius:20px;background:transparent;cursor:pointer;font-size:13px;font-weight:700}.hero__pagination button.is-active{color:var(--blue);background:#fff}.course-section{position:relative;padding:85px max(7vw,24px) 105px;overflow:hidden}.course-section:before{content:"";position:absolute;left:-45px;bottom:-100px;width:300px;height:700px;opacity:.65;background:url(https://www.estat.tw/dist/images/bg_earth.png) no-repeat center/contain}.course-section--blue{background:linear-gradient(180deg,#fff 0,#edf8fe)}.section-heading{position:relative;z-index:1;max-width:1170px;margin:0 auto 45px;display:flex;justify-content:space-between;align-items:end}.section-heading h2,.partners h2{margin:0;color:transparent;background:linear-gradient(180deg,var(--cyan),var(--blue));-webkit-background-clip:text;background-clip:text;font-size:38px;letter-spacing:.08em}.section-heading a{color:var(--ink);padding-bottom:6px;border-bottom:1px solid #8ca7b5;font-size:14px;letter-spacing:.1em}.course-grid{position:relative;z-index:1;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:25px;max-width:1170px;margin:auto}.course-card{position:relative;display:grid;grid-template-columns:48% 52%;min-height:370px;background:linear-gradient(0deg,#dff3ff,#fff 74%)}.course-card__image{min-height:280px;background-size:cover;background-position:center}.course-card__body{padding:48px 36px 28px;display:flex;flex-direction:column;position:relative}.course-card__students{position:absolute;right:25px;top:19px;padding:5px 12px;border-radius:18px;color:#fff;background:#91ced8}.course-card h3{margin:6px 0 28px;color:#51636c;font-size:23px}.course-card p{margin:0;color:#89969c;font-size:14px;line-height:1.75}.course-card__price{margin-top:auto;padding-top:24px;border-top:1px solid var(--line);color:#7790a0;font-size:13px;font-weight:600;letter-spacing:.08em}.course-card__price strong{font-size:18px}.course-section--blue .course-card{display:block;background:transparent}.course-section--blue .course-card__image{min-height:300px}.course-section--blue .course-card__body{min-height:275px;padding-left:0;padding-right:0}.course-card__number{position:absolute;top:270px;left:20px;color:#90d5df;font-size:58px;font-weight:300;line-height:1}.course-section--blue .course-card__students{top:48px}.empty{padding:150px 20px;text-align:center}.empty h2{color:var(--ink)}.empty button{padding:11px 24px;color:#fff;border:0;border-radius:24px;background:var(--blue)}.partners{padding:90px max(7vw,24px);text-align:center}.partners__logos{display:grid;grid-template-columns:repeat(4,1fr);gap:55px;align-items:center;max-width:1050px;margin:65px auto 0}.partners__logos img{max-width:100%;max-height:90px;object-fit:contain;filter:grayscale(1);opacity:.65}footer{padding-top:74px;background:linear-gradient(180deg,#fff,#e3f5ff)}.footer__columns{display:grid;grid-template-columns:150px .8fr .9fr 1fr 2fr;gap:clamp(38px,4vw,82px);align-items:start;max-width:1640px;min-height:310px;margin:auto;padding:0 48px 58px}.footer__brand{align-self:end;margin:0!important}.footer__logo{display:block;width:117px;height:auto}.footer__columns h3{margin:0 0 18px;padding-bottom:13px;color:#1790ac;border-bottom:1px solid #166589;font-size:25px;letter-spacing:.03em}.footer__columns a{display:block;margin:8px 0;color:#14557e;font-size:17px;font-weight:600}.footer__group>a:hover,.footer__details a:hover{color:var(--cyan)}.social{display:flex;gap:17px;padding-top:10px}.social a{display:grid;place-items:center;width:48px;height:48px;margin:0;border-radius:50%;color:#fff;background:var(--blue);font-size:13px;font-weight:700}.social a:last-child{font-size:24px;font-family:Arial,sans-serif}.footer__details{padding-top:2px}.footer__details p{display:grid;grid-template-columns:100px 1fr;gap:15px;margin:0 0 9px;line-height:1.55}.footer__details strong{color:#1a9ab5;font-size:19px;white-space:nowrap}.footer__details a{margin:0;color:#0e4d78;font-size:17px}.copyright{padding:18px 25px;color:#fff;background:linear-gradient(270deg,var(--cyan),var(--blue));text-align:center;font-size:12px;letter-spacing:.04em}.copyright span{margin-left:15px;opacity:.75}.to-top{position:fixed;z-index:10;right:35px;bottom:70px;width:54px;height:54px;color:#fff;border:0;border-radius:50%;background:linear-gradient(270deg,var(--cyan),var(--blue));font-size:27px;cursor:pointer}.information-page{min-height:100vh}.page-hero{display:grid;place-items:center;min-height:330px;padding-top:90px;background:linear-gradient(120deg,#e5f7ff,#f9fdff 60%,#d7effa)}.page-hero h1{margin:0;color:var(--ink);font-size:42px;letter-spacing:.08em;text-align:center}.page-hero h1 span{display:block;margin-bottom:7px;color:#8bcbd8;font-size:17px;letter-spacing:.28em}.page-content{width:min(1050px,calc(100% - 48px));margin:0 auto;padding:78px 0 110px;color:#576d78;font-size:16px;line-height:2}.page-content>h2{margin:0 0 25px;color:var(--ink);font-size:30px}.page-content p{margin:0 0 26px}.page-content__quote{padding:25px 30px;color:var(--ink);border-left:4px solid var(--cyan);background:#eef9fd;font-size:18px;font-weight:600}.directions{margin-top:55px;padding-top:38px;border-top:1px solid #b7d1dd}.directions h2{color:var(--ink);font-size:27px}.directions li{margin:5px 0;padding-left:8px}.terms-section{padding:27px 0;border-top:1px solid #c9dde6}.terms-section h3{margin:0 0 10px;color:var(--ink);font-size:21px}.terms-section p{margin:0}.terms-section a{color:var(--blue);font-weight:700}.page-hero--photo{color:#fff;background:linear-gradient(90deg,#074277e0,#1b96b2b8),url(https://www.estat.tw/dist/images/banner_about.jpg) center/cover}.page-hero--photo h1{color:#fff}.page-hero--photo h1 span{color:#fff;opacity:.9}.teacher-content{width:min(1120px,calc(100% - 48px));margin:-50px auto 110px;padding:75px;position:relative;background:#fff;box-shadow:0 16px 45px #124f7021}.teacher-content__cover{display:block;width:100%;max-height:540px;object-fit:cover}.teacher-videos{display:grid;grid-template-columns:repeat(2,1fr);gap:40px;margin-top:65px}.teacher-videos article{position:relative;padding-bottom:18px;border-bottom:1px solid #b5ced9}.video-frame{aspect-ratio:16 / 9;background:#dceef5}.video-frame iframe{display:block;width:100%;height:100%;border:0}.teacher-videos h2{display:inline-block;margin:22px 8px 0 0;color:var(--ink);font-size:20px}.teacher-videos time{color:#78919d}.instructor-content{width:min(980px,calc(100% - 48px));margin:0 auto;padding:75px 0 110px}.instructor-content__intro{margin:0 0 45px;padding:27px 32px;color:var(--ink);border-left:4px solid var(--cyan);background:#edf8fd;font-size:18px;font-weight:600}.instructor-content section{display:grid;grid-template-columns:330px 1fr;gap:35px;padding:31px 0;border-top:1px solid #c6dce6}.instructor-content h2{margin:0;color:var(--ink);font-size:22px}.instructor-content ol{margin:0;padding-left:24px;line-height:2}.primary-action{display:inline-flex;align-items:center;justify-content:center;min-width:150px;margin-top:26px;padding:13px 28px;color:#fff;border:0;border-radius:28px;background:linear-gradient(90deg,var(--blue),var(--cyan));font-weight:700;cursor:pointer}.account-panel{width:min(620px,calc(100% - 40px));margin:-50px auto 110px;padding:65px 75px;position:relative;background:#fff;box-shadow:0 16px 45px #124f7024}.account-panel--wide{width:min(930px,calc(100% - 40px))}.form-field{display:block;margin-bottom:24px;color:#315c70;font-weight:600}.form-field>span{display:block;margin-bottom:8px}.form-field b,.choice-group b{color:#1e9cb3}.form-field input{width:100%;height:48px;padding:0 15px;color:#405965;border:1px solid #aec8d4;border-radius:3px;outline:none;background:#fbfdfe}.form-field input:focus{border-color:var(--cyan);box-shadow:0 0 0 3px #33a9b921}.captcha-row{display:grid;grid-template-columns:1fr 105px;gap:12px}.captcha-row strong{display:grid;place-items:center;color:#fff;border-radius:3px;background:repeating-linear-gradient(135deg,#176f9f 0,#176f9f 9px,#2a91ae 9px,#2a91ae 18px);font-size:21px;letter-spacing:.18em}.account-panel .primary-action{width:100%}.account-links{display:flex;justify-content:center;gap:25px;margin-top:24px}.account-links a,.account-links button{padding:0;color:var(--ink);border:0;background:none;cursor:pointer;font-weight:600}.form-notice{margin:22px 0 0;padding:13px 16px;color:var(--ink);background:#eaf7fb;line-height:1.6}.registration-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:0 28px}.choice-group{display:flex;align-items:center;gap:25px;margin:0 0 24px;padding:18px 20px;border:1px solid #c5d7df}.choice-group legend{padding:0 8px;color:#315c70;font-weight:600}.choice-group label{display:flex;gap:7px;align-items:center}.registration-terms{margin-top:38px;padding:25px 28px;background:#edf8fd}.registration-terms h2{margin:0 0 8px;color:var(--ink);font-size:20px}.registration-terms p{color:#657c86;line-height:1.8}.registration-terms label{color:var(--ink);font-weight:600}.registration-terms a{margin-left:4px;text-decoration:underline}.course-detail{width:min(1170px,calc(100% - 48px));margin:-50px auto 0;padding:62px 70px 75px;position:relative;background:#fff;box-shadow:0 15px 42px #124f7021}.course-detail>h2{margin:0 0 28px;color:#258eaa;font-size:30px}.course-detail__main{display:grid;grid-template-columns:2fr 1fr;gap:28px}.course-detail__media{display:grid;place-items:center;min-height:390px;background-color:#07131a;background-position:center;background-size:cover}.course-detail__media:before{content:"";position:absolute}.course-detail__media span{display:grid;place-items:center;width:120px;height:120px;color:#fff;border-radius:50%;background:#000000b8;font-size:38px}.course-detail__media small{display:block;margin-top:4px;font-size:14px}.course-detail__summary{padding:38px 30px;color:#60737d;background:linear-gradient(180deg,#4ea9bb,#277ca8)}.course-detail__summary>span{color:#fff;opacity:.85}.course-detail__summary h3{margin:12px 0 20px;color:#fff;font-size:28px}.course-detail__summary p{color:#fff;line-height:1.9}.course-detail__summary dl{margin-top:32px;color:#fff}.course-detail__summary dl div{display:flex;justify-content:space-between;padding:12px 0;border-top:1px solid rgba(255,255,255,.35)}.course-detail__summary dd{margin:0}.purchase-bar{padding:55px 24px;background:#eef9fe}.purchase-bar__inner{width:min(1170px,100%);margin:auto;display:flex;justify-content:space-between;align-items:center}.course-price{display:flex;align-items:center;gap:35px;color:var(--blue);font-size:23px;font-weight:700}.course-price b{color:#064a75;font-size:42px;letter-spacing:.06em}.purchase-actions{display:flex;align-items:center;gap:22px}.buy-now{min-width:190px;padding:15px 30px;color:var(--blue);border:2px solid var(--blue);border-radius:32px;background:#fff;font-size:18px;font-weight:700;cursor:pointer}.round-action{width:62px;height:62px;color:#fff;border:0;border-radius:50%;background:linear-gradient(180deg,var(--cyan),var(--blue));font-size:28px;cursor:pointer;box-shadow:0 4px 10px #0c537a33}.round-action.is-active{color:#ffeff1;outline:4px solid rgba(51,169,185,.23)}.loading-state{min-height:400px;display:grid;place-items:center;color:var(--ink)}.cart-page{width:min(1100px,calc(100% - 48px));min-height:460px;margin:0 auto;padding:75px 0 110px;display:grid;grid-template-columns:1fr 330px;gap:45px}.cart-list article{display:grid;grid-template-columns:150px 1fr auto auto;gap:22px;align-items:center;padding:22px 0;border-bottom:1px solid #c7dce5}.cart-list img{width:150px;height:95px;object-fit:cover}.cart-list h2{margin:0 0 7px;color:var(--ink);font-size:21px}.cart-list p{margin:0}.cart-list strong{color:var(--blue)}.cart-list button{color:#647b86;border:0;background:none;cursor:pointer;text-decoration:underline}.cart-summary{align-self:start;padding:28px;background:#edf8fd}.cart-summary>strong{display:block;color:var(--ink);font-size:25px}.cart-summary .primary-action{width:100%}.cart-summary small{display:block;margin-top:18px;line-height:1.7}.cart-empty,.payment-result{grid-column:1 / -1;padding:80px 20px;text-align:center}.cart-empty h2,.payment-result h2{color:var(--ink)}.payment-result{min-height:430px}:root{--glass-border: rgba(132,174,194,.38);--glass-fill: rgba(255,255,255,.76);--glass-shadow: 0 18px 55px rgba(28,88,118,.12), inset 0 1px 0 rgba(255,255,255,.82);--radius-xl: 36px;--radius-lg: 28px;--radius-md: 18px}body{background:transparent}.header{top:12px;left:18px;width:calc(100% - 36px);height:82px;padding:0 22px;border:1px solid rgba(255,255,255,.28);border-radius:26px;background:#0c446521;box-shadow:0 12px 40px #01273f1f,inset 0 1px #ffffff38;backdrop-filter:blur(22px) saturate(145%);-webkit-backdrop-filter:blur(22px) saturate(145%)}.header--solid{height:82px;color:var(--ink);border-color:var(--glass-border);background:#ffffffc7;box-shadow:var(--glass-shadow)}.category-menu,.nav--open{border:1px solid var(--glass-border);border-radius:22px;background:#ffffffe6;box-shadow:var(--glass-shadow);backdrop-filter:blur(24px) saturate(150%);-webkit-backdrop-filter:blur(24px) saturate(150%)}.search{border:1px solid rgba(255,255,255,.7);background:#fffc;box-shadow:0 10px 34px #003f5f26,inset 0 1px #fff;backdrop-filter:blur(18px) saturate(140%);-webkit-backdrop-filter:blur(18px) saturate(140%)}.search--compact{border-color:currentColor;background:#ffffff1f;box-shadow:inset 0 1px #ffffff47}.hero{margin:0 12px;border-radius:0 0 42px 42px;box-shadow:0 24px 60px #0b426229}.course-section{width:calc(100% - 32px);margin:22px auto;border:1px solid var(--glass-border);border-radius:var(--radius-xl);background:var(--glass-fill);box-shadow:var(--glass-shadow)}.course-section--blue{background:linear-gradient(155deg,#ffffffd1,#e2f6ffb8);backdrop-filter:blur(20px) saturate(130%);-webkit-backdrop-filter:blur(20px) saturate(130%)}.course-card{overflow:hidden;border:1px solid var(--glass-border);border-radius:var(--radius-lg);box-shadow:0 14px 36px #1f5b771c,inset 0 1px #fff}.course-card__image{border-radius:0}.course-section--blue .course-card{padding:12px;background:#ffffff8a}.course-section--blue .course-card__image{border-radius:20px}.partners{width:calc(100% - 32px);margin:22px auto;border:1px solid var(--glass-border);border-radius:var(--radius-xl);background:#ffffffb3;box-shadow:var(--glass-shadow);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px)}footer{margin:22px 12px 12px;overflow:hidden;border:1px solid var(--glass-border);border-radius:38px;box-shadow:var(--glass-shadow)}.page-hero{margin:0 12px;overflow:hidden;border-radius:0 0 var(--radius-xl) var(--radius-xl);box-shadow:0 20px 50px #1758771f}.page-content,.teacher-content,.instructor-content,.account-panel,.course-detail,.cart-summary,.cart-empty,.payment-result{border:1px solid var(--glass-border);border-radius:var(--radius-xl);background:#ffffffc7;box-shadow:var(--glass-shadow);backdrop-filter:blur(22px) saturate(130%);-webkit-backdrop-filter:blur(22px) saturate(130%)}.page-content,.instructor-content{margin-top:32px;margin-bottom:70px;padding:58px 64px}.teacher-content,.account-panel,.course-detail{overflow:hidden}.teacher-content__cover,.video-frame,.course-detail__media,.course-detail__summary{border-radius:var(--radius-md)}.page-content__quote,.instructor-content__intro,.registration-terms,.form-notice{border:1px solid rgba(110,178,199,.32);border-left:4px solid var(--cyan);border-radius:var(--radius-md);background:#e8f8fdb8}.form-field input,.choice-group{border-radius:14px;background:#ffffffb3}.google-login{display:flex;align-items:center;justify-content:center;gap:13px;min-height:52px;padding:0 20px;color:#33445a;border:1px solid rgba(91,118,136,.35);border-radius:16px;background:#ffffffe0;box-shadow:0 8px 24px #1f5b7717,inset 0 1px #fff;font-weight:600;transition:border-color .2s ease,box-shadow .2s ease,transform .2s ease}.google-login:hover{border-color:#4285f48c;box-shadow:0 12px 28px #1f5b7724,inset 0 1px #fff;transform:translateY(-1px)}.google-login:focus-visible{outline:3px solid rgba(66,133,244,.25);outline-offset:3px}.google-login svg{flex:0 0 auto;width:22px;height:22px}.login-divider{display:flex;align-items:center;gap:14px;margin:25px 0;color:#78909b;font-size:13px}.login-divider:before,.login-divider:after{content:"";flex:1;height:1px;background:#6e97a94d}.signed-in-user{display:flex;align-items:center;gap:15px;margin-bottom:28px;padding:16px;border:1px solid var(--glass-border);border-radius:18px;background:#ffffff9e}.signed-in-user img{width:48px;height:48px;border-radius:50%;object-fit:cover}.signed-in-user div{min-width:0;flex:1}.signed-in-user strong,.signed-in-user span{display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.signed-in-user strong{color:var(--ink)}.signed-in-user span{margin-top:3px;font-size:13px}.signed-in-user button{padding:7px 12px;color:var(--ink);border:1px solid rgba(110,151,169,.35);border-radius:12px;background:#ffffffb3;cursor:pointer}.profile-page{width:min(760px,calc(100% - 40px))}.profile-page__identity{display:flex;align-items:center;gap:24px;padding-bottom:30px;border-bottom:1px solid rgba(110,151,169,.28)}.profile-page__identity img{width:88px;height:88px;border-radius:50%;object-fit:cover;box-shadow:0 12px 28px #1453702e}.profile-page__identity h2{margin:0;color:var(--ink);font-size:28px}.profile-page__identity p{margin:4px 0 10px}.profile-page__identity span{display:inline-block;padding:5px 10px;color:var(--blue);border-radius:12px;background:#33a9b91f;font-size:12px;font-weight:700}.profile-page__grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;margin-top:28px}.profile-page__grid article{padding:22px;border:1px solid var(--glass-border);border-radius:20px;background:#ffffff94}.profile-page__grid strong,.profile-page__grid span{display:block}.profile-page__grid strong{color:var(--ink);font-size:18px}.profile-page__grid span{margin-top:7px;font-size:13px}.profile-page__empty{text-align:center}.cart-page{align-items:start}.cart-list{padding:12px 28px;border:1px solid var(--glass-border);border-radius:var(--radius-lg);background:#ffffffb8;box-shadow:var(--glass-shadow)}.cart-list article:last-child{border-bottom:0}.purchase-bar{width:calc(100% - 32px);margin:22px auto;border:1px solid var(--glass-border);border-radius:var(--radius-xl);background:#eef9febd;box-shadow:var(--glass-shadow);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px)}.buy-now,.primary-action,.pill,.round-action,.to-top{box-shadow:inset 0 1px #ffffff8c,0 8px 20px #135b7e24}@supports not ((backdrop-filter: blur(1px)) or (-webkit-backdrop-filter: blur(1px))){.header,.course-section--blue,.partners,.page-content,.teacher-content,.instructor-content,.account-panel,.course-detail,.cart-summary{background:#fffffff5}}@media(max-width:1100px){.header{height:72px;padding:0 18px}.logo{width:160px}.logo img{width:135px}.menu-button{display:block;margin-left:auto;padding:8px 15px;color:currentColor;border:1px solid currentColor;border-radius:22px;background:transparent}.nav{position:absolute;top:78px;left:0;width:100%;padding:22px;display:none;flex-wrap:wrap;color:var(--ink);background:#ffffffeb;box-shadow:0 10px 24px #12527424}.nav--open{display:flex}.nav__spacer,.nav__dash{display:none}.category-menu{left:0;top:32px}.search--compact{order:2;width:100%}.profile-menu__panel{right:auto;left:0}.hero__content{padding-top:250px}.footer__columns{grid-template-columns:110px repeat(3,1fr);gap:35px}.footer__details{grid-column:2 / -1}}@media(max-width:760px){.hero{height:650px}.hero__slide{background-position:58% center}.hero__content{padding-top:220px}.hero h1{font-size:clamp(34px,10vw,48px);line-height:1.45}.hero h1 span{font-size:30px}.hero__pagination{right:20px}.course-section{padding-top:65px}.course-grid,.course-card{grid-template-columns:1fr}.course-card__image{min-height:260px}.course-card__body{min-height:280px}.partners__logos{grid-template-columns:repeat(2,1fr)}footer{padding-top:55px}.footer__columns{grid-template-columns:repeat(2,1fr);gap:38px 25px;padding:0 28px 55px}.footer__brand{grid-column:1 / -1;grid-row:4}.footer__logo{width:95px}.footer__details{grid-column:1 / -1}.footer__details p{grid-template-columns:86px 1fr}.footer__columns h3{font-size:21px}.footer__columns a,.footer__details a{font-size:15px}.page-hero{min-height:260px}.page-content{width:min(100% - 34px,1050px);padding:55px 0 80px}.teacher-content{width:calc(100% - 28px);padding:18px;margin-bottom:75px}.teacher-videos{grid-template-columns:1fr;gap:45px;margin-top:45px}.instructor-content{width:calc(100% - 34px);padding:55px 0 80px}.instructor-content section{grid-template-columns:1fr;gap:8px}.account-panel,.account-panel--wide{width:calc(100% - 28px);padding:38px 23px;margin-bottom:75px}.profile-page__identity{align-items:flex-start}.profile-page__identity img{width:68px;height:68px}.profile-page__grid,.registration-grid{grid-template-columns:1fr}.choice-group{flex-wrap:wrap}.course-detail{width:calc(100% - 28px);padding:35px 20px}.course-detail__main{grid-template-columns:1fr}.course-detail__media{min-height:260px}.purchase-bar__inner{align-items:flex-start;flex-direction:column;gap:28px}.course-price{gap:15px}.course-price b{font-size:30px}.purchase-actions{width:100%;gap:13px}.buy-now{flex:1;min-width:0}.round-action{width:54px;height:54px}.cart-page{width:calc(100% - 34px);grid-template-columns:1fr}.cart-list article{grid-template-columns:100px 1fr}.cart-list img{width:100px;height:72px}.to-top{right:18px;bottom:55px;width:46px;height:46px}}@media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;transition-duration:.01ms!important;animation-duration:.01ms!important}}