/* Shared flat UI: solid surfaces, clear borders, compact copy. */
.search-dialog::backdrop,.info-dialog::backdrop{background:#28203360;backdrop-filter:none}
:root{--bg:#fafafa;--paper:#fff;--ink:#28272e;--muted:#74727d;--line:#e8e7eb;--purple:#7053cf;--purple-dark:#5037a4;--lavender:#f1edf9;--radius:8px;--shadow:none}
body{background:var(--bg)}h1,h2,h3{letter-spacing:-.025em}.header,.mobile-nav{background:#fff;backdrop-filter:none}.header{height:72px}.header-inner{gap:52px}.header-end>.demo-tag{color:#77727e;border-color:#e2dfe8}.main{padding-top:32px}.footer{padding-top:24px}.fade-in{animation:none}.brand-mark{border-radius:7px}.brand span{border-radius:3px}.desktop-nav a.active:after{bottom:14px;height:2px;left:0;right:0}.eyebrow{letter-spacing:.08em}.page-heading{margin:2px 0 26px}.page-heading h1{font-size:30px}.page-heading p{font-size:13px}.section{margin-top:30px}.section-head h2{font-size:21px}.text-link{color:#70677f}.text-link:hover{color:var(--purple)}
.button,.button.small,.chip,.tab,.tabs,.workspace-toggle,.workspace-toggle a{border-radius:6px;box-shadow:none}.button{font-weight:600;transition:background .15s}.button:hover,.course-card:hover,.tool-card:hover{transform:none;box-shadow:none}.button.secondary{background:#fff;border-color:#dedbe5}.button.soft{background:var(--lavender)}.icon-button:hover{background:#f4f2f7}.avatar{border:0}.tabs,.workspace-toggle{background:#efedf3}.tab,.workspace-toggle a{color:#777080}.tab.active,.workspace-toggle a.active{box-shadow:none}.chip{font-size:12px;padding:7px 14px}.chip.active{border-color:#c5b5e8}.note{border-radius:5px;background:#f3f1f6;color:#81768d;font-size:11px;padding:9px 12px}.note.inline{background:none;padding:0}.demo-tag,.cover-label,.cover-duration,.member-stage,.local-badge,.level,.live-badge{border-radius:3px}.cover-label{backdrop-filter:none;background:#32264099}
.hero,.panel,.course-card,.tool-card,.live-home-card,.live-card,.event-banner,.detail-cover,.feature-item,.case-panel,.lesson-screen,.event-hero,.profile-banner,.profile-stats,.shortcut,.study-row,.activity-record,.metric,.channel-card,.partner-welcome,.partner-action-card,.member-profile,.invitation-card,.partner-entry,.join-partner,.learning-event,.related-tool,.usage-row{border-radius:8px;box-shadow:none}.panel{padding:25px;border-color:var(--line)}.panel-title h2{font-size:18px}.panel-title small{color:var(--muted)}.side-text,.section-head p,.page-heading p,.tool-card p,.course-category,.teacher,.course-bottom,.detail-hero .description,.detail-meta,.live-card-body p,.profile-banner p,.shortcut p,.study-row p,.member-main small,.member-activity,.partner-small-note,.invite-help,.invite-steps p,.join-heading p,.join-benefits p,.usage-row p{color:var(--muted)}.feature-item p,.channel-card p{color:var(--muted)}.course-card{border-color:var(--line)}.course-body{padding:18px}.course-body h3{font-size:16px}.course-category{margin-bottom:7px}.course-card:hover{border-color:#c7bbdc}.course-card:hover .course-cover img{transform:none}.course-cover img{transition:none}.course-cover{aspect-ratio:2}.live-card-image{border-radius:0}.live-home-card h3{font-size:23px}.live-home-card .teacher{margin-top:18px}.live-home-card .text-link{margin-top:20px}.event-banner:after{background:#28213a99}.event-banner h3{font-size:25px}.event-banner .text-link{margin-top:35px}.home-bottom,.hero-foot{display:none}
.hero{min-height:0;grid-template-columns:1.3fr .8fr;background:#f0edf6;border:1px solid #e6e0ef;gap:30px;padding:39px}.hero-copy{padding:0}.hero .eyebrow{font-size:10px;margin-bottom:17px}.hero h1{font-size:42px;line-height:1.35;letter-spacing:-1.5px}.hero p{color:#71677f;margin-top:14px;font-size:13px}.hero-actions{margin-top:24px}.hero-index{display:flex;flex-direction:column;justify-content:center;align-self:center;width:100%}.hero-index a{display:flex;align-items:center;gap:19px;padding:20px 0;border-bottom:1px solid #dcd4e8}.hero-index a:last-child{border-bottom:0}.hero-index a>span{font-size:11px;color:#a08eb4;font-variant-numeric:tabular-nums}.hero-index strong{font-size:15px;font-weight:500}.hero-index .icon{margin-left:auto;color:#8c74ae;width:17px;height:17px}
.tools-grid{gap:20px}.tool-directory{margin-bottom:28px}.tool-card{display:block;padding:27px;position:relative;border:1px solid var(--line);background:#fff;overflow:visible}.tool-card:hover{border-color:#bfb3d6;background:#fefcff}.tool-card-head{display:flex;align-items:center;gap:14px;margin-bottom:16px}.tool-card-head h3{font-size:21px;margin:0}.tool-card-head>.icon{margin-left:auto;color:#817787;width:18px;height:18px}.tool-logo{height:48px;width:48px;flex-shrink:0;border-radius:8px;overflow:hidden;background:#f5f4f7;letter-spacing:0}.tool-logo.peach{background:#faf8f7}.tool-logo img{width:100%;height:100%;object-fit:contain}.tool-card p{font-size:13px;line-height:1.85;min-height:48px;margin:0;max-width:390px}.tool-tags{display:flex;gap:8px;flex-wrap:wrap;margin-top:20px}.tool-tags span{font-size:11px;color:#716b79;padding:4px 9px;border:1px solid #ece8f0;border-radius:3px;background:#faf9fc}.tool-join{display:flex;gap:20px;align-items:center;padding:29px;border:1px dashed #d6cfdf;background:#fff;border-radius:8px}.tool-join h2{font-size:20px;margin-bottom:7px}.tool-join p{color:var(--muted);font-size:13px}.tool-join>.button{margin-left:auto}.join-api-icon{display:flex;align-items:center;justify-content:center;width:48px;height:48px;border:1px solid var(--line);border-radius:7px;color:#837090;flex-shrink:0}.join-api-icon .icon{height:23px;width:23px}.related-tool .tool-logo{width:42px;height:42px;border-radius:6px}.related-tool small{color:var(--muted)}.related-tool>.icon{width:16px;height:16px}
.profile-banner{background:#fff;border:1px solid var(--line);padding:26px}.profile-banner h1{font-size:24px}.profile-banner>.avatar{width:53px;height:53px;font-size:22px}.profile-banner .eyebrow{display:none}.profile-banner .demo-tag{display:inline-block;margin-top:6px}.profile-stats{border-color:var(--line)}.shortcut-grid{grid-template-columns:repeat(4,minmax(0,1fr));gap:13px}.shortcut{padding:20px;gap:13px}.shortcut-icon{border-radius:6px;height:37px;width:37px}.shortcut h3{font-size:14px}.shortcut p:empty{display:none}.workspace-bar{margin-bottom:20px}.workspace-bar>span{font-size:12px;color:var(--muted);font-weight:500}.workspace-toggle a{font-size:12px;padding:8px 19px}.partner-heading{padding:6px 0 17px}.partner-heading h1{font-size:27px}.partner-heading .eyebrow{font-size:10px;color:var(--muted)}.partner-emblem{width:50px;height:50px;border-radius:7px;background:#f0edf7;transform:none}.partner-emblem .icon{width:26px;height:26px}.partner-nav{gap:30px;margin-bottom:24px}.partner-nav a{font-size:13px;color:#77727d;padding:12px 3px}.partner-nav a.active:after{height:2px}.partner-welcome{display:flex;justify-content:space-between;gap:24px;background:#f1edf8;padding:27px 28px;border:1px solid #e5deef}.partner-welcome h2{font-size:22px;line-height:1.5}.partner-welcome .detail-actions{flex-shrink:0}.partner-action-card{padding:22px}.partner-action-card h3{font-size:16px}.partner-action-card p{color:var(--muted)}.partner-action-card>.icon{width:17px;height:17px}.partner-entry{background:#fff;border-color:var(--line);margin-top:14px;padding:17px 22px}.partner-entry h3{font-size:14px}.partner-entry .shortcut-icon{background:#f0edf8}.metric{border:1px solid var(--line);background:#fff;padding:24px}.metric.primary{background:#f2eef9;border-color:#e5dcef}.metric strong{font-size:31px}.metric small{color:#7d7387}.metric-label{color:#79717f;font-size:12px}.member-main strong{font-size:13px}.member-main small{font-size:11px}.member-activity{font-size:11px}.member-stage{font-size:10px}.member-detail-item small{color:var(--muted)}.member-profile{background:#fff}.insight-track i,.chart-bar>span{background:#a38ac9}.member-row:hover{background:#fcfbfd}.invitation-card{background:#f2eef8;border:1px solid #e2d8ef;padding:28px}.invitation-card h2{font-size:31px;margin-top:40px}.invitation-card>p{color:#877596}.invitation-brand{font-size:19px}.invitation-sender{padding:22px 0 0}.invite-topics{display:flex;gap:20px;margin:32px 0 25px}.invite-topics span{display:flex;align-items:center;gap:7px;color:#9b86af;font-size:12px}.invite-topics .icon{width:16px;height:16px}.invite-controls>.eyebrow{display:none}.invite-controls>h2{font-size:25px;margin-bottom:21px}.invite-controls .panel{border-radius:6px}.invite-url{border-radius:5px}.invite-controls .note{background:none;padding-left:0}.invitation-sender small{color:#8e7a9c}.join-heading .eyebrow{display:none}.join-heading h1{font-size:31px}.join-partner{background:#f3eff8;border-color:#e2d9ec}.join-partner p{color:#867391}.join-success{color:#4e805b}.search-dialog,.info-dialog{border-radius:9px;box-shadow:none;border:1px solid #ddd6e6}.dialog-actions{flex-wrap:wrap}.search-result{border-radius:5px}.search-field{border-radius:6px}.toast{border-radius:6px}.lesson-screen{box-shadow:none}.lesson-screen .mode-label{border-radius:3px}.empty{background:#fff;border:1px solid var(--line);border-radius:8px}.empty h3{font-size:17px}.empty p{color:var(--muted)}
@media(max-width:1050px){.hero{padding:31px;gap:26px}.hero h1{font-size:37px}.partner-welcome{padding:24px}.partner-welcome h2{font-size:20px}.tool-card{padding:24px}.shortcut{display:block}.shortcut .shortcut-icon{margin-bottom:12px}.tool-card-head h3{font-size:19px}}
@media(max-width:760px){.header{height:62px}.main{padding-top:22px}.shell{padding-left:20px;padding-right:20px}.header-inner{gap:10px}.header .demo-tag{font-size:8px}.brand{font-size:20px}.brand-mark{width:28px;height:28px}.brand span{font-size:8px}.page-heading{margin:2px 0 22px}.page-heading h1{font-size:26px}.section{margin-top:27px}.section-head h2{font-size:19px}.panel{padding:20px}.hero{padding:27px 24px;grid-template-columns:1fr;gap:25px}.hero h1{font-size:34px;letter-spacing:-1px}.hero p{font-size:12px;margin-top:13px}.hero-actions{margin-top:23px}.hero-index{display:none}.hero-copy{padding:0}.button{min-height:42px;font-size:12px;padding:10px 15px}.home-courses .course-card{border-radius:7px;grid-template-columns:96px minmax(0,1fr)}.home-courses .course-body{padding:13px}.home-courses .course-body h3{font-size:13px;margin-bottom:10px}.home-courses .course-category{font-size:9px}.home-courses .level{display:none}.course-body h3{font-size:16px}.course-cover{aspect-ratio:1.9}.live-home-card h3{font-size:21px}.event-banner{min-height:200px}.event-banner h3{font-size:23px}.event-banner .text-link{margin-top:28px}.tools-grid{grid-template-columns:1fr;gap:14px}.tool-card{padding:21px}.tool-card-head{gap:12px;margin-bottom:14px}.tool-card-head h3{font-size:19px}.tool-card-head>.tool-logo{width:43px;height:43px;margin:0;border-radius:7px}.tool-card p{font-size:12px;min-height:0;line-height:1.9}.tool-tags{margin-top:17px;gap:7px}.tool-tags span{font-size:10px;padding:3px 8px}.tool-directory{margin-bottom:21px}.tool-join{padding:22px 20px;gap:13px;flex-wrap:wrap}.tool-join h2{font-size:18px}.tool-join p{font-size:11px;line-height:1.9}.tool-join>.join-api-icon{width:37px;height:37px}.join-api-icon .icon{width:20px;height:20px}.tool-join>div{flex:1;min-width:0}.tool-join>.button{margin:5px 0 0 50px;font-size:11px;min-height:37px}.related-tool .tool-logo{height:37px;width:37px}.workspace-bar{margin-bottom:20px}.workspace-bar>span{margin-bottom:10px;font-size:11px}.workspace-toggle a{font-size:12px;padding:9px}.profile-banner{padding:22px 19px}.profile-banner h1{font-size:21px}.profile-banner>.avatar{width:45px;height:45px;font-size:19px}.profile-banner .button{margin-left:auto;padding:7px 10px}.profile-stats{padding:18px 12px}.profile-stat strong{font-size:22px}.shortcut-grid{grid-template-columns:repeat(4,minmax(0,1fr));gap:8px}.shortcut{padding:15px 7px;text-align:center}.shortcut .shortcut-icon{margin:0 auto 10px;width:32px;height:32px;border-radius:5px}.shortcut-icon .icon{width:17px;height:17px}.shortcut h3{font-size:10px;white-space:nowrap}.shortcut>.icon{display:none}.partner-entry{padding:16px;gap:11px}.partner-entry h3{font-size:13px}.partner-heading h1{font-size:25px}.partner-heading{padding-bottom:16px}.partner-emblem{width:43px;height:43px}.partner-nav{gap:0;justify-content:space-between;margin-bottom:21px}.partner-nav a{font-size:12px;padding:11px 8px}.partner-nav a:first-child{padding-left:0}.partner-nav a:last-child{padding-right:0}.partner-welcome{display:block;padding:22px}.partner-welcome h2{font-size:20px}.partner-welcome .detail-actions{margin-top:18px;gap:9px}.partner-welcome .button{font-size:11px;min-height:38px;padding:9px 13px}.metric{padding:20px}.metric strong{font-size:29px}.metric-grid.compact{gap:8px}.metric-grid.compact .metric{padding:16px 11px}.partner-metrics.compact strong{font-size:25px}.partner-metrics.compact .metric-label{font-size:10px}.metric small:empty{display:none}.member-main small{font-size:9px}.member-main strong{font-size:12px}.member-activity{font-size:9px}.member-row>.member-stage{font-size:8px}.member-profile h2{font-size:20px}.member-profile>.member-stage{margin-left:59px}.partner-action-card{padding:20px}.partner-action-card p{font-size:10px}.invitation-card{padding:24px 22px}.invitation-card h2{font-size:28px;margin-top:30px}.invitation-card>p{font-size:11px}.invite-topics{margin:27px 0 20px;gap:17px}.invite-topics span{font-size:11px}.invitation-sender{padding:18px 0 0}.invite-controls>h2{font-size:22px;margin-bottom:17px}.invite-controls .panel{padding:18px}.invite-controls .detail-actions .button{font-size:10px}.invite-layout{gap:25px}.join-heading h1{font-size:25px}.join-heading p{font-size:11px}.join-benefits h3{font-size:14px}.join-benefits p{font-size:11px}.join-partner h2{font-size:19px}.join-partner p{font-size:9px}.empty{padding:27px 18px}.empty h3{font-size:16px}.empty p{font-size:11px}.tabs{gap:2px}.tab{padding:7px 16px}.chip{font-size:10px;padding:6px 10px}.mobile-nav a{font-size:10px}.mobile-nav a.active:before{display:none}.footer{padding-bottom:calc(90px + env(safe-area-inset-bottom))}.detail-hero h1{font-size:26px}.lesson-screen h2{font-size:20px}}
@media(max-width:374px){.shell{padding-left:16px;padding-right:16px}.hero{padding:24px 21px}.hero h1{font-size:32px}.tool-join p{font-size:10px}.shortcut-grid{gap:6px}.shortcut h3{font-size:10px}.partner-nav a{font-size:11px;padding-left:7px;padding-right:7px}.profile-banner .button{margin-left:58px}.workspace-toggle a{padding:8px}.member-main strong{font-size:11px}}