/* 品牌值遵循 V1.0 正式 PDF；保留已认可的手机布局、组件尺寸与交互。 */
:root{color-scheme:light;--bg:#f8f7f3;--surface:#fff;--surface-2:#f8f7f3;--text:#262321;--muted:#6f6966;--line:#e2ddd7;--accent:#a82e34;--accent-strong:var(--accent);--accent-soft:#f3e9e7;--success:#28704f;--success-soft:#edf5f0;--error:var(--accent);--error-soft:var(--accent-soft);--focus:var(--accent);--radius-card:20px;--radius-field:14px;--radius-pill:999px;--pad-card:20px;--page-pad:16px;--space-xs:4px;--space-sm:8px;--space-md:12px;--space-lg:16px;--space-xl:24px;--card-shadow:0 1px 2px rgba(38,35,33,.04),0 10px 28px rgba(38,35,33,.045);--banner-shadow:0 14px 34px rgba(38,35,33,.1);--font-ui:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",sans-serif;--text-base:15px;--text-card:13.5px;--text-caption:12.5px;--text-xs:11px;--text-sm:12px;--text-meta:13px;--text-body:14px;--text-title:16px;--text-section:23px;--text-page:34px;--lh-ui:1.55;--lh-reading:1.8;--weight-regular:400;--weight-medium:500;--weight-bold:600;--weight-heavy:600;--phone-max:430px;--nav-height:70px}
*{box-sizing:border-box}html,body{margin:0;height:100%;background:var(--bg);color:var(--text);font:var(--text-base)/var(--lh-ui) var(--font-ui)}body{overflow:hidden}button,input,textarea,select{font:inherit;color:inherit}button,a{touch-action:manipulation;-webkit-tap-highlight-color:transparent}button{cursor:pointer;border:0}button:disabled{cursor:not-allowed;opacity:.5}a{color:inherit;text-decoration:none}button:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible,summary:focus-visible{outline:3px solid var(--focus);outline-offset:3px}#screen:focus{outline:0}[hidden]{display:none!important}img{display:block;max-width:100%}svg{width:22px;height:22px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;flex:none}b,strong{font-weight:var(--weight-bold)}h1,h2,h3,h4,p{margin:0}h1{font-size:var(--text-page);font-weight:var(--weight-heavy);line-height:1.25;letter-spacing:-.045em}h2{font-size:var(--text-section);font-weight:var(--weight-bold);line-height:1.4;letter-spacing:-.035em}h3{font-size:var(--text-title);font-weight:var(--weight-bold);line-height:1.5}p+p{margin-top:10px}.muted{color:var(--muted)}.red{color:var(--accent)}.small{font-size:var(--text-meta)}.tiny{font-size:var(--text-xs)}.mono{font-variant-numeric:tabular-nums}.grow{flex:1;min-width:0}.stack{display:grid;gap:12px}.mt{margin-top:16px}.mb{margin-bottom:16px}.divider{height:1px;background:var(--line);margin:18px 0}.skip-link{position:fixed;left:12px;top:8px;z-index:200;background:var(--text);color:#fff;padding:10px;transform:translateY(-150%)}.skip-link:focus{transform:none}
/* 胶囊动作共用布局；输入框、原生选择框和状态标签保留各自语义。 */
.primary,.secondary,.slide-btn,.task-go,button.chip,a.chip,.news-save{display:inline-flex;align-items:center;justify-content:center;gap:var(--space-sm);text-align:center}
.phone-frame{position:relative;height:100dvh;width:100%;background:var(--bg)}.phone-scroll{height:100%;overflow-y:auto;overscroll-behavior:contain;scrollbar-width:none;-webkit-overflow-scrolling:touch}.phone-scroll::-webkit-scrollbar{display:none}.shell{padding:16px var(--page-pad) calc(92px + env(safe-area-inset-bottom));min-height:100%}.topbar{display:flex;gap:10px;align-items:center;justify-content:space-between;padding:2px;margin:0 0 14px;height:42px}.search-pill{flex:1;min-width:0;display:flex;align-items:center;justify-content:center;gap:7px;height:38px;border-radius:var(--radius-pill);background:var(--surface);color:var(--muted);font-size:var(--text-meta);padding:0 12px}.search-pill svg{width:16px;height:16px;stroke-width:2}.search-pill span{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.icon-btn{width:38px;height:38px;flex:none;border-radius:50%;background:var(--surface);border:1px solid var(--line);display:grid;place-items:center}.avatar-btn{width:38px;height:38px;flex:none;border-radius:50%;background:var(--surface-2);display:grid;place-items:center;font-size:var(--text-sm);font-weight:var(--weight-bold)}.channels{display:flex;gap:22px;overflow-x:auto;scrollbar-width:none;padding:4px 2px 12px;mask-image:linear-gradient(90deg,#000 0,#000 calc(100% - 20px),transparent 100%)}.channels::-webkit-scrollbar{display:none}.channel{position:relative;white-space:nowrap;flex:none;background:none;padding:4px 0 7px;font-size:var(--text-base);color:var(--muted)}.channel.active{font-size:var(--text-title);color:var(--text);font-weight:var(--weight-bold)}.channel.active:after{content:"";position:absolute;left:50%;bottom:0;transform:translateX(-50%);width:20px;height:3px;border-radius:2px;background:var(--accent)}
.carousel{touch-action:pan-y;user-select:none;position:relative;border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--banner-shadow)}.car-track{display:flex;transition:transform .3s ease}.slide{position:relative;flex:0 0 100%;min-height:194px;padding:22px 20px;display:flex;align-items:center;overflow:hidden}.slide-ghost{position:absolute;top:10px;left:22px;font-size:30px;font-weight:var(--weight-bold);letter-spacing:.04em;opacity:.13;pointer-events:none}.slide-copy{position:relative;z-index:2}.slide-copy h2{margin:16px 0 6px;font-size:24px;font-weight:var(--weight-heavy);letter-spacing:-.03em;line-height:1.22}.slide-copy p{margin:0 0 14px;font-size:var(--text-caption);opacity:.8}.slide-btn{min-height:38px;border-radius:var(--radius-pill);padding:8px 16px;font-size:var(--text-meta);font-weight:var(--weight-bold);background:var(--accent);color:#fff}.slide-course{background:var(--accent);color:#fff}.slide-course .slide-btn{background:#fff;color:var(--text)}.slide-camp{background:var(--accent-soft)}.slide-member{background:var(--surface)}.car-dots{position:absolute;right:5px;bottom:0;display:flex;z-index:3}.car-dots button{width:32px;height:44px;display:grid;place-items:center;background:none;padding:0}.car-dots button:after{content:"";width:6px;height:6px;border-radius:99px;background:#6f696666;transform:translateY(6px)}.car-dots button.on:after{width:16px;background:var(--accent)}.carousel:has(.slide-course:not([inert])) .car-dots button:after{background:#fff8}.carousel:has(.slide-course:not([inert])) .car-dots button.on:after{background:#fff}
.tile-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px 8px;margin-top:20px}.tile{background:none;display:flex;flex-direction:column;align-items:center;gap:var(--space-sm);padding:0}.tile-box{width:52px;height:52px;border-radius:15px;background:var(--surface);color:var(--text);display:grid;place-items:center;box-shadow:0 6px 14px rgba(38,35,33,.05)}.tile-box svg{width:26px;height:26px}.tile-label{font-size:var(--text-sm);white-space:nowrap}.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:var(--space-md);margin:26px 0 12px}.section-head h2{font-size:var(--text-section)}.section-head p{margin-top:3px;color:var(--muted);font-size:var(--text-sm)}.section-link{background:none;padding:7px 0;font-size:var(--text-meta);font-weight:var(--weight-bold);white-space:nowrap;flex:none;min-height:36px}.page-head{display:flex;justify-content:space-between;align-items:flex-start;gap:var(--space-md);margin:6px 0 20px}.page-head p{color:var(--muted);font-size:var(--text-meta);margin-top:6px}.page-head .eyebrow{padding-top:8px}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);padding:var(--pad-card);box-shadow:var(--card-shadow)}.card+.card{margin-top:12px}.card h3{margin:0 0 10px}.card p{font-size:var(--text-card);color:var(--muted);line-height:1.75}.card h1{font-size:25px;line-height:1.4;letter-spacing:-.03em}.eyebrow{display:inline-flex;align-items:center;gap:7px;color:var(--muted);font-size:var(--text-xs);font-weight:var(--weight-bold);letter-spacing:.04em}.eyebrow:before{content:"";width:6px;height:6px;border-radius:50%;background:currentColor}.pill{display:inline-flex;padding:3px 9px;border-radius:var(--radius-pill);background:var(--surface-2);color:var(--muted);font-size:var(--text-xs);font-weight:var(--weight-bold);line-height:1.55}.pill.red{background:var(--accent-soft);color:var(--accent-strong)}.pill.success{background:var(--success-soft);color:var(--success)}.primary,.secondary{min-height:44px;border-radius:var(--radius-pill);padding:11px 18px;font-size:var(--text-body);font-weight:var(--weight-bold);line-height:1.5;white-space:nowrap}.primary{background:var(--accent);color:#fff}.primary:hover{background:var(--accent-strong);box-shadow:inset 0 0 0 2px var(--text)}.secondary{background:var(--surface-2);color:var(--text)}.primary svg,.secondary svg{width:18px;height:18px}.btn-block{display:flex;width:100%}.btn-pair{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:16px}.btn-pair .primary,.btn-pair .secondary{padding-left:10px;padding-right:10px;font-size:var(--text-meta)}.text-btn{display:inline-flex;align-items:center;gap:5px;min-height:38px;padding:6px 0;font-size:var(--text-meta);font-weight:var(--weight-bold);background:none;color:var(--accent)}.text-btn svg{width:16px;height:16px}.actions{display:flex;flex-wrap:wrap;gap:10px;align-items:center}.note{font-size:var(--text-sm)!important;color:var(--muted);line-height:1.7!important}.notice{padding:12px 14px;border-radius:12px;background:var(--surface-2);font-size:var(--text-meta);line-height:1.7;color:var(--muted)}.notice.error{background:var(--error-soft);color:var(--error)}.notice.success{background:var(--success-soft);color:var(--success)}.inline-status{font-size:var(--text-sm);color:var(--muted);margin-top:10px;line-height:1.7}.empty{text-align:center;padding:27px 14px}.empty .empty-icon{width:46px;height:46px;background:var(--surface-2);border-radius:50%;display:grid;place-items:center;margin:0 auto 13px;color:var(--muted)}.empty h3{font-size:var(--text-title);margin-bottom:8px}.empty p{font-size:var(--text-meta);color:var(--muted);line-height:var(--lh-reading);margin:0 0 16px}
.message-bell{position:relative}.message-dot{position:absolute;top:6px;right:6px;width:7px;height:7px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 2px var(--surface);pointer-events:none}.message-row .grow{min-width:0}.message-row strong{overflow-wrap:anywhere}.message-state{flex:none;font-size:var(--text-xs);line-height:1.5;color:var(--muted);white-space:nowrap}.message-state.unread{color:var(--accent);font-weight:var(--weight-bold)}
.task-strip{margin-top:22px;display:grid;grid-template-columns:34px minmax(0,1fr) 76px;align-items:center;gap:11px;height:81px;padding:16px}.task-strip .task-symbol{width:34px;height:38px;border-radius:10px;background:var(--accent-soft);color:var(--accent);display:grid;place-items:center}.task-strip .task-copy{display:grid;grid-template-rows:22px 22px;gap:2px;min-width:0;height:46px}.task-strip .task-meta{display:flex;align-items:center;gap:6px;min-width:0;height:22px}.task-strip strong{display:block;min-width:0;font-size:var(--text-body);line-height:22px;margin:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.task-strip small{min-width:0;font-size:var(--text-xs);line-height:22px;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.task-strip .task-go{width:76px;height:44px;min-height:44px;font-size:var(--text-sm);padding:0;border-radius:var(--radius-pill);background:var(--accent);color:#fff;font-weight:var(--weight-bold);white-space:nowrap}.task-strip .grow{min-width:0}.task-record{display:flex;align-items:center;min-height:44px;width:max-content;max-width:100%;font-size:var(--text-sm);font-weight:var(--weight-bold);color:var(--accent);line-height:1.7}.course-row,.course-list{display:grid;gap:12px}.course-card{display:grid;grid-template-columns:122px minmax(0,1fr);height:176px;padding:0;background:#fff;text-align:left;border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--card-shadow)}.course-card img{width:122px;height:100%;min-height:0;object-fit:cover;filter:none}.course-copy{padding:14px;min-width:0}.course-copy small{font-size:10px;letter-spacing:.04em;color:var(--muted);font-weight:var(--weight-bold)}.course-copy h3{font-size:var(--text-base);line-height:1.5;margin:6px 0}.course-copy p{font-size:var(--text-sm);line-height:1.65;color:var(--muted);margin:0 0 8px}.meta{display:flex;gap:var(--space-sm);flex-wrap:wrap;color:var(--muted);font-size:var(--text-xs)}.course-line{display:grid;grid-template-columns:102px minmax(0,1fr);gap:14px;align-items:center;padding:10px;background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);text-align:left;box-shadow:var(--card-shadow)}.course-line img{width:102px;height:88px;object-fit:cover;border-radius:var(--radius-field)}.course-line h3{font-size:var(--text-base);margin:4px 0 7px}.course-line small{font-size:var(--text-xs);color:var(--muted);font-weight:var(--weight-bold)}.filter-row{display:flex;gap:var(--space-sm);flex-wrap:wrap;margin:20px 0 16px}.chip{min-height:38px;border:1px solid var(--line);background:#fff;color:var(--muted);border-radius:var(--radius-pill);padding:8px 13px;font-size:var(--text-sm);white-space:nowrap}.chip.active{background:var(--accent);border-color:var(--accent);color:#fff;font-weight:var(--weight-bold)}.progress{height:3px;border-radius:3px;background:var(--line);margin-top:var(--space-md);overflow:hidden}.progress span{display:block;height:100%;background:var(--accent)}.resume-card{display:grid;grid-template-columns:72px minmax(0,1fr);align-items:center;gap:var(--space-md);padding:16px}.resume-card>img{width:72px;height:64px;object-fit:cover;border-radius:13px}.resume-main{min-width:0}.resume-main small{font-size:var(--text-sm);color:var(--muted);display:block;margin-bottom:5px;overflow-wrap:anywhere}.resume-main h2{font-size:var(--text-title);font-weight:var(--weight-bold);line-height:1.5;letter-spacing:0;overflow-wrap:anywhere;margin:0}.resume-footer{grid-column:1/-1;display:flex;justify-content:space-between;align-items:center;gap:var(--space-md);padding-top:12px;border-top:1px solid var(--line)}.resume-footer>div{min-width:0;display:grid;gap:2px}.resume-footer .primary{flex:none;min-height:44px;font-size:var(--text-meta);padding:9px 17px}.resume-footer span{font-size:var(--text-sm);color:var(--muted);font-variant-numeric:tabular-nums;overflow-wrap:anywhere}
.profile-top{display:flex;gap:var(--space-lg);align-items:center;padding:20px}.profile-avatar{width:68px;height:68px;flex:none;border-radius:50%;display:grid;place-items:center;background:var(--surface-2);font-size:var(--text-section);font-weight:var(--weight-heavy)}.profile-top h2{font-size:var(--text-section);line-height:1.3}.profile-top p{font-size:var(--text-meta);margin:4px 0}.member-card{position:relative;margin-top:var(--space-lg);min-height:220px;padding:22px;overflow:hidden}.member-card:after{content:"";position:absolute;right:22px;bottom:-9px;font-size:55px;font-weight:var(--weight-heavy);letter-spacing:-.06em;color:rgba(38,35,33,.05);pointer-events:none}.member-card h2{font-size:28px;letter-spacing:-.045em}.member-card p{font-size:var(--text-meta);margin-top:5px}.price{font-size:32px;color:var(--accent);font-weight:var(--weight-heavy);letter-spacing:-.05em;font-variant-numeric:tabular-nums;margin-top:17px;line-height:1.2}.price small{font-size:var(--text-sm);font-weight:500;letter-spacing:0}.member-card .primary{margin-top:14px;position:relative;z-index:1}.menu-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.menu-item{min-height:110px;border:1px solid var(--line);border-radius:var(--radius-card);box-shadow:var(--card-shadow);background:#fff;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:14px 8px;gap:9px}.menu-item .mini-icon{width:38px;height:38px;border-radius:50%;display:grid;place-items:center;background:var(--surface-2)}.menu-item b{font-size:var(--text-meta)}.menu-list .menu-line{display:flex;align-items:center;gap:var(--space-md);padding:13px 0;min-height:52px;border-bottom:1px solid var(--line);background:none;width:100%;text-align:left;font-size:var(--text-body)}.menu-list .menu-line:last-child{border:0}.menu-line .right{margin-left:auto;color:var(--muted);font-size:var(--text-sm)}.tool-footer{display:flex;justify-content:center;gap:var(--space-lg);font-size:var(--text-xs);color:var(--muted);padding:28px 0 0}.tool-footer a{padding:6px}
.bottom-nav{min-height:calc(var(--nav-height) + env(safe-area-inset-bottom));position:absolute;z-index:30;left:0;right:0;bottom:0;background:#fffffff5;border-top:1px solid var(--line);box-shadow:0 -8px 28px rgba(0,0,0,.07);display:grid;grid-template-columns:repeat(4,1fr);padding:6px 8px calc(6px + env(safe-area-inset-bottom));backdrop-filter:blur(14px)}.tab{position:relative;background:none;display:flex;flex-direction:column;align-items:center;gap:2px;padding:6px 4px 10px;border-radius:10px;color:var(--muted);font-size:var(--text-xs);min-height:54px}.tab svg{width:21px;height:21px}.tab.active{color:var(--accent);background:var(--accent-soft);font-weight:var(--weight-bold)}.tab.active svg{stroke-width:2.2}.tab.active:after{content:"";position:absolute;left:50%;bottom:4px;transform:translateX(-50%);width:5px;height:5px;border-radius:50%;background:var(--accent)}
.sub-nav{position:sticky;top:0;z-index:25;display:flex;align-items:center;gap:10px;padding:10px 14px;background:#fffffff5;border-bottom:1px solid var(--line);backdrop-filter:blur(14px)}.sub-back{width:38px;height:38px;flex:none;display:grid;place-items:center;border:1px solid var(--line);border-radius:50%;background:#fff}.sub-back svg{width:19px;height:19px;stroke-width:2}.sub-title{flex:1;min-width:0;text-align:center;font-size:var(--text-title);font-weight:var(--weight-bold);letter-spacing:-.02em;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.sub-nav-slot{width:38px;flex:none;display:grid;place-items:center}.sub-nav-slot button{background:none;width:38px;height:38px}.sub-body{padding:14px 12px calc(30px + env(safe-area-inset-bottom))}.sub-body h1{font-size:25px;font-weight:var(--weight-heavy);letter-spacing:-.03em;line-height:1.4;margin:0 0 7px}.sub-heading{padding:3px 4px 18px}.sub-heading p{font-size:var(--text-meta);color:var(--muted);line-height:1.8}.cover{width:100%;aspect-ratio:16/7;object-fit:cover;border-radius:var(--radius-card)}.course-title{margin-top:16px!important;font-size:25px!important}.lesson-row{display:flex;align-items:center;gap:11px;width:100%;background:none;padding:15px 0;border-bottom:1px solid var(--line);text-align:left}.lesson-row:last-child{border:0}.lesson-no{width:32px;height:32px;border-radius:50%;background:var(--surface-2);display:grid;place-items:center;font-size:var(--text-body);font-weight:var(--weight-bold);flex:none}.lesson-row .grow strong{display:block;font-size:var(--text-body);line-height:1.6}.lesson-row small{display:block;font-size:var(--text-sm);color:var(--muted);margin-top:4px}.lesson-row .play-circle{width:34px;height:34px;flex:none;border-radius:50%;background:var(--text);color:#fff;display:grid;place-items:center}.play-circle svg{width:16px;height:16px}.lesson-row .pill{max-width:78px;justify-content:center;text-align:center;font-size:10px}.lesson-row.current .lesson-no{background:var(--accent-soft);color:var(--accent)}.sub-cta{position:sticky;bottom:0;padding:16px 0 4px;background:linear-gradient(180deg,transparent,var(--bg) 32%);z-index:10}.sub-cta .note{text-align:center;margin-top:7px}.player-box{position:relative;aspect-ratio:16/9;background:var(--text);border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--card-shadow)}.player-center{position:absolute;inset:0;width:100%;background:none;display:grid;place-items:center;color:var(--text)}.player-center span{width:64px;height:64px;border-radius:50%;background:#fffffff0;display:grid;place-items:center}.player-center svg{width:26px;height:26px;fill:currentColor;stroke:none}.player-demo{position:absolute;left:14px;top:12px;z-index:1;font-size:var(--text-xs);color:#fff9}.player-bar{position:absolute;left:0;right:0;bottom:0;padding:22px 16px 12px;background:linear-gradient(180deg,transparent,#000b);color:#fff;pointer-events:none}.player-track{height:4px;border-radius:99px;background:#ffffff52}.player-times{display:flex;justify-content:space-between;font-size:var(--text-xs);margin-top:7px;font-variant-numeric:tabular-nums}.mode-row{display:flex;justify-content:space-between;align-items:center;gap:var(--space-sm);margin:14px 0}.mode-row .filter-row{margin:0;gap:6px}.mode-row .chip{font-size:var(--text-sm);padding:7px 12px;min-height:36px}.now-playing{margin:16px 0}.now-playing h1{font-size:18px}.now-playing p{font-size:var(--text-meta);color:var(--muted);line-height:1.7;margin-top:5px}.ep-toggle{display:flex;align-items:center;justify-content:space-between;width:100%;background:none;font-size:var(--text-title);font-weight:var(--weight-bold);padding:0 0 4px}.ep-toggle span{font-size:var(--text-meta);color:var(--muted);font-weight:var(--weight-bold)}.reading-card h2{font-size:21px;margin:10px 0 14px}.reading-card p{font-size:var(--text-body);line-height:1.85;color:var(--text)}.reading-card .quote{background:var(--accent-soft);border-left:3px solid var(--accent);padding:12px 14px;margin:16px 0;font-size:var(--text-body);line-height:1.8}.reading-card ul{margin:12px 0;padding-left:20px;font-size:var(--text-meta);line-height:1.9;color:var(--text)}.reading-nav{display:flex;justify-content:space-between;align-items:center;gap:10px;margin-top:17px}.reading-nav .secondary,.reading-nav .primary{min-height:40px;font-size:var(--text-sm);padding:9px 13px}.reading-nav small{font-size:var(--text-xs);color:var(--muted)}
.field{margin-bottom:18px}.field label{display:block;font-size:var(--text-meta);font-weight:var(--weight-bold);margin-bottom:8px}.field input,.field textarea,.field select{width:100%;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-field);padding:13px 14px;font-size:var(--text-base);min-height:46px}.field textarea{min-height:134px;resize:vertical;line-height:1.7}.field input::placeholder,.field textarea::placeholder{color:var(--muted)}.field small{display:block;font-size:var(--text-xs);color:var(--muted);margin-top:7px;line-height:1.7}.field .error{font-size:var(--text-sm);color:var(--error);margin-top:6px}.upload-row{display:flex;flex-wrap:wrap;gap:10px}.field .upload-add{position:relative;width:76px;height:76px;flex:none;border:1.5px dashed var(--line);border-radius:var(--radius-field);background:#fff;color:var(--muted);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;font-size:var(--text-xs);padding:6px;margin:0;text-align:center;cursor:pointer}.upload-add span{white-space:nowrap;line-height:1.55}.upload-add:focus-within{outline:3px solid var(--focus);outline-offset:3px}.upload-add svg{width:23px;height:23px}.field .upload-add input{position:absolute;inset:0;width:100%;height:100%;min-height:0;padding:0;border:0;opacity:0;cursor:pointer}.upload-tile{position:relative;width:76px;height:76px;flex:none;border-radius:var(--radius-field);overflow:hidden;background:var(--surface-2)}.upload-tile img{width:100%;height:100%;object-fit:cover}.upload-tile button{position:absolute;top:3px;right:3px;width:26px;height:26px;border-radius:50%;background:#000a;color:#fff;display:grid;place-items:center}.upload-tile svg{width:15px;height:15px}.image-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.image-grid button{padding:0;background:none;border-radius:12px;overflow:hidden}.image-grid img{width:100%;height:140px;object-fit:cover}.record-text{white-space:pre-wrap;overflow-wrap:anywhere;font-size:var(--text-body)!important;line-height:1.85!important;color:var(--text)!important}.record-link{display:block;color:var(--accent);text-decoration:underline;overflow-wrap:anywhere;font-size:var(--text-meta);margin-top:12px}.feedback{border-left:3px solid var(--accent);padding-left:13px;margin-top:16px}.feedback p{font-size:var(--text-body);white-space:pre-wrap;overflow-wrap:anywhere;color:var(--text);margin-top:8px}.record-row{display:flex;align-items:center;gap:11px;padding:14px 0;border-bottom:1px solid var(--line)}.record-row:last-child{border:0}.record-row .record-symbol{width:34px;height:40px;border-radius:10px;background:var(--surface-2);display:grid;place-items:center;flex:none}.record-row strong{display:block;font-size:var(--text-body);line-height:1.55}.record-row small{display:block;font-size:var(--text-xs);color:var(--muted);margin-top:4px}.record-row>.chevron{width:16px;color:var(--muted)}
.stats{display:flex;gap:var(--space-lg);padding:18px}.streak-main{flex:1;min-width:0}.streak-label{font-size:var(--text-sm);color:var(--muted);font-weight:var(--weight-bold)}.streak-num{display:flex;align-items:baseline;gap:6px;margin-top:2px}.streak-num b{font-size:48px;font-weight:var(--weight-heavy);color:var(--accent);line-height:1.1;letter-spacing:-.04em;font-variant-numeric:tabular-nums}.streak-num small{font-size:var(--text-body);color:var(--muted);font-weight:var(--weight-bold)}.streak-status{display:inline-flex;background:var(--accent-soft);color:var(--accent-strong);font-size:var(--text-xs);font-weight:var(--weight-bold);border-radius:var(--radius-pill);padding:4px 10px;margin-top:9px}.streak-side{display:flex;flex-direction:column;justify-content:center;gap:var(--space-md);padding-left:16px;border-left:1px solid var(--line)}.stat b{font-size:22px;font-weight:var(--weight-heavy);display:block;line-height:1.25}.stat small{font-size:var(--text-xs);color:var(--muted)}.task-card h2{font-size:21px;margin:8px 0 10px}.task-card p{font-size:var(--text-card)}.task-actions{display:flex;gap:9px;flex-wrap:wrap;margin-top:18px}.task-actions .primary,.task-actions .secondary{font-size:var(--text-meta);padding:10px 15px}.knowledge-card{display:flex;gap:var(--space-md);align-items:flex-start}.knowledge-card>.knowledge-symbol{color:var(--accent);width:32px;height:34px;border-radius:10px;background:var(--accent-soft);display:grid;place-items:center;flex:none}.knowledge-card h3{font-size:var(--text-body);margin:2px 0 5px}.knowledge-card p{font-size:var(--text-meta);line-height:1.75}
.calendar-head{display:flex;justify-content:space-between;gap:10px;align-items:center;margin-bottom:16px}.calendar-head h2{font-size:18px;letter-spacing:-.02em}.cal-nav{display:flex;gap:7px}.cal-nav button{width:36px;height:36px;background:#fff;border:1px solid var(--line);border-radius:50%;display:grid;place-items:center}.cal-nav svg{width:17px;height:17px}.week,.days{display:grid;grid-template-columns:repeat(7,minmax(0,1fr));text-align:center;gap:5px}.week{font-size:var(--text-xs);color:var(--muted);margin-bottom:8px}.day{position:relative;aspect-ratio:1;display:grid;place-items:center;border-radius:10px;background:none;min-height:36px;font-size:var(--text-meta);border:1px solid transparent}.day.today{border-color:var(--accent);color:var(--accent);font-weight:var(--weight-bold)}.day.done{background:var(--accent-soft)}.day.done:after{content:"";position:absolute;bottom:4px;width:4px;height:4px;background:var(--accent);border-radius:50%}.day.selected{background:var(--accent);color:#fff}.day.selected:after{background:#fff}.cal-legend{display:flex;justify-content:space-between;gap:var(--space-md);margin-top:14px;font-size:var(--text-xs);color:var(--muted)}.cal-selected{margin-top:20px}.cal-selected h3{font-size:var(--text-title);margin-bottom:8px}.report-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--space-sm);margin:17px 0}.report-stats>div{text-align:center;background:var(--bg);padding:15px 6px;border-radius:var(--radius-field)}.report-stats b{font-size:25px;font-weight:var(--weight-heavy);display:block}.report-stats span{font-size:var(--text-xs);color:var(--muted)}.week-dots{display:grid;grid-template-columns:repeat(7,1fr);gap:7px;margin:16px 0}.week-dot{text-align:center;font-size:10px;color:var(--muted)}.week-dot i{display:grid;place-items:center;width:30px;height:30px;margin:0 auto 6px;border-radius:10px;background:var(--surface-2);font-size:var(--text-sm);font-style:normal}.week-dot.done i{background:var(--accent-soft);color:var(--accent)}.certificate{text-align:center;padding:28px 20px}.cert-symbol{margin:0 auto 16px;background:var(--accent-soft);color:var(--accent);width:64px;height:64px;border-radius:50%;display:grid;place-items:center}.cert-symbol svg{width:30px;height:30px}.certificate h2{font-size:var(--text-section);margin:10px 0}.certificate .primary{margin-top:20px}.cert-sample{padding:28px 12px;border:2px solid var(--accent-soft);text-align:center;margin-top:16px}.cert-sample strong{font-size:var(--text-section);display:block;margin:20px 0 10px}
.step-list{display:grid;grid-template-columns:minmax(0,1fr);gap:18px;list-style:none;margin:0;padding:0}.step-list li{display:flex;gap:12px;min-width:0}.step-index{width:28px;height:28px;border:2px solid var(--line);border-radius:50%;display:grid;place-items:center;font-size:var(--text-meta);font-weight:var(--weight-heavy);flex:none;color:var(--muted)}.step-list h3{font-size:var(--text-body);margin:1px 0 6px}.step-list p{font-size:var(--text-meta)}.resource-file{display:flex;gap:11px;align-items:center;padding:14px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);margin:15px 0}.resource-file>svg{width:28px;height:28px;color:var(--accent)}.resource-file strong{font-size:var(--text-meta);display:block}.resource-file small{font-size:var(--text-xs);color:var(--muted)}.resource-file .primary{font-size:var(--text-sm);min-height:40px;padding:9px 13px}.prompt{white-space:pre-wrap;overflow-wrap:anywhere;min-width:0;max-width:100%;font-size:var(--text-sm);line-height:var(--lh-reading);background:var(--bg);border:1px solid var(--line);border-radius:12px;padding:13px;max-height:180px;overflow:auto;user-select:text}.login-brand{text-align:center;padding:22px 0}.login-logo{width:60px;height:60px;background:var(--accent);color:#fff;border-radius:18px;display:grid;place-items:center;font-size:26px;font-weight:var(--weight-heavy);margin:0 auto 13px}.login-brand p{font-size:var(--text-meta);color:var(--muted);margin-top:7px}details{border-bottom:1px solid var(--line)}details:last-child{border:0}summary{cursor:pointer;display:flex;justify-content:space-between;gap:var(--space-sm);align-items:center;min-height:48px;font-size:var(--text-body);font-weight:var(--weight-bold);list-style:none}summary::-webkit-details-marker{display:none}summary:after{content:"+";font-size:19px;color:var(--muted)}details[open]>summary:after{content:"−"}details>p{padding-bottom:14px}.setting-row{display:flex;gap:var(--space-md);align-items:center;padding:14px 0;border-bottom:1px solid var(--line)}.setting-row:last-child{border:0}.setting-row strong{font-size:var(--text-meta);display:block}.setting-row p{font-size:var(--text-xs);margin-top:4px}.setting-row select{max-width:145px;background:#fff;border:1px solid var(--line);border-radius:10px;padding:9px;font-size:var(--text-sm);min-height:40px}.check-label{display:flex;align-items:flex-start;gap:10px;padding:12px 0;font-size:var(--text-meta);line-height:1.7}.check-label input{width:17px;height:17px;accent-color:var(--accent);margin-top:var(--space-xs);flex:none}.page-index{display:grid;grid-template-columns:1fr 1fr;gap:10px}.page-index a{min-height:44px;display:flex;align-items:center;justify-content:center;padding:10px;background:var(--bg);border:1px solid var(--line);border-radius:12px;font-size:var(--text-sm)}.mini-event{display:flex;align-items:center;gap:12px}.mini-event .event-date{width:46px;height:50px;background:var(--surface-2);border-radius:12px;display:grid;place-items:center;font-size:20px;font-weight:var(--weight-heavy);flex:none}.mini-event h3{font-size:var(--text-base);margin:0 0 4px}.mini-event p{font-size:var(--text-sm)}.info-row{display:flex;gap:var(--space-md);font-size:var(--text-meta);padding:8px 0}.info-row>span{width:48px;color:var(--muted);flex:none}.camp-day{padding:17px 0;border-bottom:1px solid var(--line)}.camp-day:last-child{border:0}.camp-day>span{font-size:var(--text-xs);color:var(--muted);font-weight:var(--weight-bold)}.camp-day h3{margin:6px 0}.fee-row{display:flex;justify-content:space-between;gap:14px;font-size:var(--text-meta);padding:11px 0;border-bottom:1px solid var(--line)}.fee-row:last-child{border:0}.fee-row>span{color:var(--muted)}.fee-row.total b{font-size:20px;color:var(--accent)}
.toast{position:absolute;z-index:100;left:50%;bottom:calc(80px + env(safe-area-inset-bottom));transform:translateX(-50%);max-width:calc(100% - 32px);width:max-content;background:#262321ee;color:#fff;padding:11px 15px;border-radius:12px;font-size:var(--text-sm);line-height:1.65;box-shadow:0 8px 24px #0002}.storage-alert{position:absolute;z-index:110;left:12px;right:12px;top:8px;background:var(--error-soft);color:var(--error);border:1px solid var(--accent);border-radius:12px;padding:12px;font-size:var(--text-sm)}dialog{position:fixed;border:1px solid var(--line);border-radius:24px;padding:24px;width:min(400px,calc(100% - 28px));max-height:85dvh;overflow:auto;margin:auto;background:#fff;color:var(--text);box-shadow:0 18px 50px #0003}dialog::backdrop{background:#0007}dialog h2{font-size:21px;margin:0 0 12px}dialog p{font-size:var(--text-body);line-height:var(--lh-reading);color:var(--muted)}dialog .actions{margin-top:22px}dialog img{max-height:63vh;object-fit:contain;margin:auto}.search-field{display:flex;gap:9px;align-items:center;padding:0 13px;background:#fff;border:1px solid var(--line);border-radius:var(--radius-pill);margin-bottom:16px}.search-field input{border:0;background:none;width:100%;min-width:0;min-height:44px;font-size:var(--text-body);outline:none}.search-field:focus-within{outline:3px solid var(--focus);outline-offset:2px}.admin-toolbar{display:flex;justify-content:space-between;align-items:center;gap:10px;margin-bottom:18px}.admin-toolbar h1{font-size:25px}.admin-grid{display:grid;grid-template-columns:1fr;gap:12px}.admin-list button{width:100%;background:none;text-align:left;padding:13px 0;border-bottom:1px solid var(--line)}.admin-list strong{display:block;font-size:var(--text-meta)}.admin-list small{font-size:var(--text-xs);color:var(--muted)}.admin-list button.active strong{color:var(--accent)}
@media(min-width:521px){body{background:var(--bg);padding:18px 0}.phone-frame{width:min(var(--phone-max),calc(100vw - 24px));height:calc(100dvh - 36px);margin:auto;border-radius:38px;overflow:hidden;box-shadow:0 0 0 2px var(--line),0 0 0 3px #26232114,0 30px 70px #26232147,0 0 44px #26232129}.phone-scroll{height:100%}.bottom-nav{border-radius:0 0 38px 38px}body.admin-view .phone-frame{width:min(1120px,calc(100vw - 36px));border-radius:24px}body.admin-view .sub-body{padding:20px 24px 36px}body.admin-view .admin-grid{grid-template-columns:220px minmax(0,1fr);gap:20px}.admin-grid .card+.card{margin-top:0}.admin-grid .admin-list{align-self:start;position:sticky;top:76px}}
@media(max-width:374px){:root{--page-pad:12px}.nb-label{font-size:var(--text-xs)}.nb-line{width:6px}.nb-guide{padding-left:7px;padding-right:7px}.course-card{grid-template-columns:108px minmax(0,1fr)}.course-card img{width:108px}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}
/* AI 原活动卡与播放器控件，沿用手机尺寸。 */
.camp-card{position:relative;padding:22px;min-height:240px;overflow:hidden}.camp-card .camp-ghost{display:block;font-size:10px;letter-spacing:.15em;font-weight:var(--weight-bold);color:var(--muted);margin-bottom:18px}.camp-card h3{font-size:25px;font-weight:var(--weight-heavy);line-height:1.3;letter-spacing:-.035em;margin:8px 0}.camp-card p{font-size:var(--text-meta);margin-bottom:16px}.camp-card:after{content:"02";position:absolute;right:5px;bottom:18px;line-height:1;font-size:145px;font-weight:var(--weight-heavy);color:#26232108;pointer-events:none}.camp-card .primary{position:relative;z-index:1}.speed-select{display:flex;align-items:center;gap:4px;font-size:var(--text-meta);color:var(--muted);font-weight:var(--weight-regular)}.speed-select select{min-width:68px;min-height:44px;border:0;border-radius:6px;background:transparent;padding:0 4px;font-size:14px;color:var(--text);font-weight:var(--weight-medium);cursor:pointer}.admin-field-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}.week-dot svg{width:15px;height:15px}.shell{padding-top:calc(16px + env(safe-area-inset-top))}.sub-nav{padding-top:calc(10px + env(safe-area-inset-top))}
@media(min-width:900px){body.admin-view .courses-admin{grid-template-columns:180px 200px minmax(0,1fr)}}
@media(max-width:520px){.admin-field-grid{grid-template-columns:1fr;gap:0}}
.toast{pointer-events:none}

/* 会员共学：沿用原型的排版、尺寸和卡片内边距。 */
.prototype-controls{position:fixed;left:24px;top:24px;display:grid;gap:12px;font-size:13px;max-width:160px;color:var(--muted)}
.prototype-controls strong{color:var(--text);font-size:14px}.prototype-controls a{min-height:36px;display:flex;align-items:center}.prototype-controls small{font-size:11px}
.admin-view .prototype-controls{display:none}
.card,.course-copy,.sub-body,.work-main,.work-content{min-width:0}
.card h1,.card h2,.card h3,.card p,.record-text,.record-link,.post-body,.work-object-list strong{overflow-wrap:anywhere}
.course-card .course-copy{display:flex;flex-direction:column;gap:6px;padding:16px 14px;min-width:0;min-height:0}
.course-card .course-copy>small{display:block;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;flex:none}
.course-card .course-copy h3,.course-card .course-copy p{display:-webkit-box;-webkit-box-orient:vertical;-webkit-line-clamp:2;overflow:hidden;overflow-wrap:anywhere;margin:0;flex:none}
.course-card .course-copy .meta{margin-top:auto;flex:none}
.course-card .course-copy .course-progress-label{margin-top:0}.course-line .course-copy{padding:0;min-width:0}
.course-line .course-copy h3{margin:5px 0 7px}.course-progress-label{display:block;margin-top:8px;color:var(--accent)}
.learning-types{display:grid;gap:12px;margin-top:20px;min-width:0}.learning-types a.card{margin:0}.learning-all{display:flex;align-items:center;justify-content:center;min-height:44px;padding:10px 18px;font-size:var(--text-body);font-weight:var(--weight-bold)}.learning-types a[aria-current="page"]{border-color:var(--accent);background:var(--accent-soft);color:var(--accent)}
.learning-entries{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
.learning-entries a.card{margin:0;display:grid;gap:8px;padding:18px}.learning-entries svg{color:var(--accent);width:25px;height:25px}.learning-entries strong{font-size:16px}.learning-entries span{font-size:12px;color:var(--muted)}
/* Phone/code login uses the existing phone shell, card and action tokens. */
.auth-body{padding-bottom:32px}.brand-lockup{display:flex;flex-direction:column;align-items:center;gap:10px;width:100%;min-width:0}.brand-lockup img{display:block;height:auto;object-fit:contain;flex:none}.brand-symbol{width:88px;max-width:100%}.brand-wordmark{width:208px;max-width:100%}.auth-heading{padding:14px 4px 24px;text-align:center}.auth-heading .brand-lockup{margin-bottom:24px}.about-brand{text-align:center}.about-brand .brand-lockup{margin:8px 0 22px}.about-brand h1{font-size:25px;line-height:1.4;margin-bottom:0}.about-brand p{text-align:left;margin:0}.about-details h2{font-size:17px;margin-bottom:12px}.about-details p+p{margin-top:12px}.about-links{display:grid;gap:8px;margin-top:20px}.about-links .primary{min-height:48px}.about-links .text-btn{min-height:44px;justify-content:center}.auth-heading h1{font-size:30px;line-height:1.4;margin-bottom:10px}.auth-heading p{font-size:14px;color:var(--muted);line-height:1.8}.auth-heading .text-btn{min-height:44px;font-size:12px;margin-top:4px}.auth-phone-mask{display:block;color:var(--text);font-size:17px;font-weight:600;letter-spacing:.04em}.auth-form .field{margin-bottom:20px}.auth-form .field label{font-size:14px}.auth-form .field input{font-size:16px;min-height:52px}.auth-phone-field{position:relative}.auth-phone-field>span{position:absolute;left:14px;top:50%;transform:translateY(-50%);font-size:15px;pointer-events:none}.auth-form .auth-phone-field input{padding-left:60px}.auth-form input[aria-invalid="true"]{border-color:var(--error)}.auth-form #auth-code{font-size:23px;letter-spacing:.23em;font-variant-numeric:tabular-nums}.auth-form #auth-code::placeholder{font-size:15px;letter-spacing:0}.auth-form .error{font-size:13px;line-height:1.7;margin-top:9px}.auth-code-meta{display:flex;align-items:center;justify-content:space-between;gap:8px;margin:-10px 0 16px;font-size:12px;color:var(--muted)}.auth-code-meta .text-btn{min-height:44px;white-space:nowrap;font-size:12px;color:var(--accent)}.auth-submit{min-height:48px}.auth-form .auth-form-foot{font-size:11px;text-align:center;margin-top:14px}.auth-help{display:flex;justify-content:center;min-height:48px;margin:12px 0;color:var(--muted);font-size:13px}.auth-help svg{width:15px;height:15px}.auth-demo-note{font-size:11px;color:var(--muted);line-height:1.9;text-align:center;padding:14px 8px 0;border-top:1px solid var(--line);overflow-wrap:anywhere}.auth-demo-note strong{display:block;font-weight:600}.auth-demo-note b{font-variant-numeric:tabular-nums;font-weight:600;color:var(--text)}.auth-symbol{display:grid;place-items:center;width:48px;height:48px;border-radius:15px;background:var(--accent-soft);color:var(--accent);margin-bottom:20px}.auth-result h1{font-size:24px;margin-bottom:12px}.auth-result-note{font-size:13px;line-height:1.85;background:var(--bg);padding:14px;border-radius:12px;margin:22px 0;color:var(--muted)}.auth-result .primary{margin-top:24px}.auth-result .text-btn,.auth-expiry .text-btn{min-height:44px;justify-content:center;font-size:13px}.auth-help-card h1{font-size:24px;margin-bottom:14px}.auth-help-card ol{padding-left:20px;font-size:14px;line-height:1.9;margin:20px 0}.auth-help-card li+li{margin-top:12px}.auth-help-card .notice{font-size:12px;padding:14px}.auth-expiry h2{font-size:23px;margin-bottom:12px}.auth-logout{margin-top:22px;font-size:13px}
.beginner-link{display:flex;align-items:center;gap:12px;margin-top:20px}.beginner-link h3{font-size:15px;margin-bottom:3px}.beginner-link>svg:first-child{color:var(--accent)}
.starter-list{margin-top:18px}.starter-step{display:flex;align-items:flex-start;gap:12px;padding:18px 0;border-top:1px solid var(--line)}.starter-step h3{font-size:15px;margin:1px 0 5px}.starter-step p{font-size:12.5px}.starter-step small{color:var(--muted);font-size:11px}.starter-step>svg{width:17px;height:17px;margin-top:5px}.starter-step.done .step-index{background:var(--accent-soft);border-color:var(--accent-soft);color:var(--accent)}.step-index svg{width:16px;height:16px}
.choice-list{display:grid;gap:10px;margin-top:18px}.choice{display:flex;align-items:center;justify-content:space-between;text-align:left;gap:12px;border:1px solid var(--line);border-radius:12px;background:var(--bg);padding:14px;font-size:14px;min-height:48px}.choice.selected{border-color:var(--accent);background:var(--accent-soft);color:var(--accent)}.knowledge-check h3{margin-top:14px}.success-text{color:var(--success)}
.record-title{margin-top:14px!important;font-size:22px!important}.revision-item{padding:16px 0;border-top:1px solid var(--line)}.revision-item strong{font-size:12px}.revision-item .record-text{margin-top:9px}.record-text{white-space:pre-wrap}.revision-item .image-grid img{max-height:180px;object-fit:contain;border-radius:10px}
.circle-heading h1{font-size:26px;line-height:1.4;margin:10px 0}.circle-toolbar{display:flex;align-items:center;justify-content:space-between;gap:10px;margin:0 0 18px}.circle-toolbar .filter-row{margin:0;gap:6px}.circle-toolbar .primary{font-size:13px;padding:10px 14px}.circle-toolbar .chip{padding-left:12px;padding-right:12px}.circle-toolbar svg{width:17px;height:17px}
.post-card{position:relative;display:block;padding:18px}.circle-person{display:inline-flex;align-items:center;gap:10px;min-height:44px;max-width:100%}.circle-person strong{display:block;font-size:13px;overflow-wrap:anywhere}.circle-person small{display:block;color:var(--muted);font-size:11px;margin-top:2px}.small-avatar{display:grid;place-items:center;width:38px;height:38px;flex:none;border-radius:50%;background:var(--surface-2);font-weight:var(--weight-bold);font-size:15px}.sample-corner{position:absolute;top:20px;right:18px;color:var(--muted);font-size:10px}
.post-body{display:block;margin-top:16px}.post-body h3{font-size:17px;margin:10px 0 8px;line-height:1.5}.post-summary{display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}.post-images{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px;margin-top:14px}.post-images img{width:100%;aspect-ratio:1;object-fit:cover;border-radius:12px}.post-images img:only-child{grid-column:1/-1;aspect-ratio:16/10}.post-footer{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-top:14px;padding-top:10px;border-top:1px solid var(--line)}.post-footer small{font-size:11px;color:var(--muted)}.reaction{display:inline-flex;align-items:center;justify-content:center;gap:5px;min-width:44px;min-height:44px;background:transparent;color:var(--muted);font-size:12px}.reaction svg{width:18px;height:18px}.reaction.active{color:var(--accent)}.reaction.active svg{fill:var(--accent-soft)}.post-tools{display:flex;justify-content:space-between;gap:12px;padding:0 4px 12px}.post-tools .text-btn{font-size:11.5px}.comment{padding:18px 0;border-bottom:1px solid var(--line)}.comment .record-text{margin-top:10px;font-size:13.5px}.comment .actions{justify-content:space-between}.comment small{font-size:11px;color:var(--muted)}.comment-section h3{font-size:17px}.comment-section textarea{min-height:92px}.share-preview .circle-person{display:flex;margin:15px 0}.share-preview h3{margin-top:10px}.share-preview p{color:var(--text)}
.image-options{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;margin:12px 0}.image-choice{display:grid;grid-template-columns:20px 1fr;align-items:center;gap:6px;font-size:12px}.image-choice input{accent-color:var(--accent)}.image-choice img{grid-column:1/-1;width:100%;height:120px;object-fit:contain;background:var(--bg);border:1px solid var(--line);border-radius:12px}
.check-row{display:flex;align-items:center;gap:10px;padding:12px 0;min-height:44px;font-size:14px}.check-row input{width:18px;height:18px;accent-color:var(--accent)}.member-card{text-align:center;padding:28px 24px}.member-card .profile-avatar{margin:24px auto 16px;width:72px;height:72px}.member-card h1{margin-bottom:12px;font-size:25px}.member-card-brand{font-size:11px;letter-spacing:.15em;color:var(--muted)}.member-card .card-bio{font-size:14px;line-height:1.8;margin:20px 0}.member-card>small{display:block;margin-top:15px;color:var(--muted);font-size:12px}
.event-card{display:block;padding:20px}.event-card-top{display:flex;align-items:center;justify-content:space-between;gap:10px}.event-card h3{font-size:20px;line-height:1.45;margin:16px 0 8px}.event-card p{font-size:13px}.event-card-bottom{display:flex;justify-content:space-between;align-items:flex-end;gap:12px;margin-top:22px;padding-top:16px;border-top:1px solid var(--line)}.event-card-bottom>div:first-child{flex:none}.event-card-bottom b{white-space:nowrap;font-size:20px;letter-spacing:.03em}.event-card-bottom small,.event-card-bottom span{display:block;color:var(--muted);font-size:11px}.event-card-bottom>div:last-child{text-align:right}.event-card-bottom strong{display:block;color:var(--accent);font-size:13px;margin-top:5px}.event-detail-hero{padding:12px 6px 26px}.event-detail-hero>.pill{display:table;margin-top:16px}.event-detail-hero h1{font-size:28px;line-height:1.4;margin:12px 0}.event-detail-hero p{font-size:14px;color:var(--muted);line-height:1.8}.event-price{display:block;font-size:15px;color:var(--accent);margin-top:18px}.event-facts,.rule-list{margin:0}.event-facts>div,.rule-list>div{display:flex;align-items:flex-start;gap:16px;padding:12px 0;border-bottom:1px solid var(--line);font-size:13px}.event-facts>div:last-child,.rule-list>div:last-child{border-bottom:0}.event-facts dt{flex:none;width:70px;color:var(--muted)}.event-facts dd{margin:0;min-width:0;overflow-wrap:anywhere}.registration-card{display:block}.registration-card>small{color:var(--muted);font-size:12px}.growth-hero{background:var(--surface);padding:24px 20px}.growth-title{display:flex;align-items:center;justify-content:space-between;gap:16px;margin:18px 0}.growth-title h1{font-size:29px}.growth-title p{margin-top:8px;font-size:12px}.growth-medal{width:60px;height:60px;border-radius:50%;background:var(--accent-soft);display:grid;place-items:center;color:var(--accent);flex:none}.growth-medal svg{width:34px;height:34px}.points-total{display:flex;align-items:baseline;gap:10px;margin:18px 0}.points-total b{font-size:42px;line-height:1;font-variant-numeric:tabular-nums}.points-total span{font-size:12px;color:var(--muted)}.ledger-row{display:flex;gap:16px;padding:16px 0;align-items:center;border-bottom:1px solid var(--line)}.ledger-row:last-child{border:0}.ledger-row strong{display:block;font-size:14px}.ledger-row small{display:block;color:var(--muted);font-size:11px;margin-top:5px}.ledger-row>b{font-size:20px;color:var(--accent)}.rule-list dt{flex:1;min-width:0}.rule-list dd{margin:0;font-weight:var(--weight-bold)}.benefit-list{padding-left:20px;margin:12px 0;line-height:2;font-size:14px;color:var(--muted)}.login-hero{padding:24px 4px}.login-hero h1{font-size:29px;line-height:1.4;margin:12px 0}.login-hero p{font-size:14px;color:var(--muted)}.expiry-banner{display:grid;gap:5px;margin-bottom:18px}.expiry-banner span{font-size:12px}.milestone-row{display:flex;align-items:flex-start;gap:12px;padding:18px 0;border-bottom:1px solid var(--line)}.milestone-row:last-child{border:0}.milestone-row h3{font-size:14px;margin-bottom:4px}.milestone-row p{font-size:12px}.draft-card{display:block}.draft-card+.draft-card{margin-top:12px}.outcome-checks{padding:14px;background:var(--bg);border-radius:12px;margin-bottom:20px}.outcome-checks>strong{font-size:12px}.outcome-checks .check-label{font-size:12px;padding:7px 0}.outcome-checks .check-label input{margin-top:3px}

/* 管理工作台单独布局；不改变手机端四Tab模板。 */
body.admin-view .phone-frame{width:min(1440px,calc(100vw - 36px));border-radius:20px;box-shadow:0 1px 2px #0001,0 16px 60px #0002}
.work-shell{display:grid;grid-template-columns:178px minmax(0,1fr);min-height:calc(100dvh - 36px);align-items:start}
.work-sidebar{position:sticky;top:0;min-height:calc(100dvh - 36px);display:flex;flex-direction:column;padding:24px 14px;background:#fff;border-right:1px solid var(--line)}.work-brand{display:flex;gap:11px;align-items:center;padding:0 7px 28px;font-size:18px;font-weight:var(--weight-bold)}.work-brand-icon{display:block;flex:none;width:48px;height:48px;object-fit:contain}.work-brand small{display:block;font-size:10px;font-weight:500;color:var(--muted);letter-spacing:.08em;margin-top:1px}.work-sidebar nav{display:grid;gap:6px}.work-sidebar nav a{display:flex;align-items:center;gap:9px;min-height:45px;padding:10px 12px;font-size:13px;border-radius:12px}.work-sidebar nav a svg{width:18px;height:18px}.work-sidebar nav a.active{background:var(--accent-soft);color:var(--accent);font-weight:var(--weight-bold)}.work-identity{margin-top:auto;padding:50px 7px 0;display:grid;gap:5px}.work-identity .pill{font-size:10px;justify-content:center}.work-identity .text-btn{font-size:11px;color:var(--muted)}
.work-header{position:sticky;top:0;z-index:20;display:flex;align-items:center;justify-content:space-between;gap:20px;padding:20px 26px;background:rgba(248,247,243,.96);border-bottom:1px solid var(--line);backdrop-filter:blur(12px)}.work-header h1{font-size:25px;line-height:1.4;margin-top:5px}.work-header .eyebrow{font-size:10px}.work-demo{font-size:11px;color:var(--muted);background:var(--surface-2);border-radius:99px;padding:7px 12px}.work-content{padding:22px 24px 36px}.work-content h2{font-size:19px}.work-section-tools{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:18px}.work-section-tools p{font-size:12px;color:var(--muted);line-height:1.7}.work-section-tools .secondary{font-size:12px;min-height:40px;padding:9px 15px}.work-editor{display:grid;grid-template-columns:230px minmax(0,1fr);gap:18px;align-items:start}.work-editor .card+.card,.work-feedback .card+.card,.work-content .admin-grid .card+.card{margin-top:0}.work-object-list{padding:16px 12px}.work-object-list h3{font-size:13px;margin:0 10px 12px}.work-object-list button{display:block;width:100%;background:none;padding:13px 10px;text-align:left;border-radius:10px;min-height:56px}.work-object-list button+button{margin-top:5px}.work-object-list button.active{background:var(--accent-soft)}.work-object-list button.active strong{color:var(--accent)}.work-object-list strong{display:block;font-size:13px;line-height:1.6}.work-object-list small{display:block;font-size:11px;color:var(--muted);margin-top:5px}.work-fields{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 18px}.work-fields .wide{grid-column:1/-1}.work-fields .field textarea{min-height:106px}.work-savebar{display:flex;align-items:center;flex-wrap:wrap;gap:10px;border-top:1px solid var(--line);padding-top:18px;margin-top:7px}.work-savebar .primary,.work-savebar .secondary{font-size:12px}.work-savebar .inline-status{width:100%}.work-feedback{display:grid;grid-template-columns:190px minmax(230px,1fr) minmax(250px,1fr);gap:16px;align-items:start}.work-feedback .card{padding:18px}.work-feedback h2{font-size:18px}.work-feedback .record-text{font-size:14px;line-height:1.9}.work-feedback textarea{min-height:170px}.work-feedback .image-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.work-feedback .image-grid button{background:var(--bg);padding:0;border:1px solid var(--line);border-radius:10px;overflow:hidden}.work-feedback .image-grid img{height:130px;object-fit:contain;width:100%}.teaching-stats{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin-bottom:22px}.teaching-stats>div{padding:17px 20px;background:#fff;border:1px solid var(--line);border-radius:16px}.teaching-stats b{display:block;font-size:25px}.teaching-stats span{font-size:12px;color:var(--muted)}.registration-admin{display:grid;gap:14px;margin-top:16px;padding:16px;background:var(--bg);border-radius:12px}.registration-admin small{font-size:11px;color:var(--muted)}.registration-admin .secondary{font-size:12px}.work-content .admin-list{position:static;align-self:start;padding:16px}.work-content .courses-admin{grid-template-columns:150px 180px minmax(0,1fr);gap:16px}.work-content .admin-list strong{font-size:12px}.work-content .admin-field-grid{gap:12px}.work-content .field input,.work-content .field select,.work-content .field textarea{font-size:13px}.work-content .admin-grid>.card:last-child{padding:20px}.work-content .admin-grid .actions{gap:8px}.work-content .admin-grid .actions .primary,.work-content .admin-grid .actions .secondary{font-size:12px;padding:10px 14px}
.work-login{max-width:850px;padding:80px 36px;margin:auto}.work-login>h1{font-size:32px;margin:16px 0}.work-login>p{font-size:14px;color:var(--muted);line-height:1.8}.work-login-options{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;margin:30px 0}.work-login-options .card{margin:0;text-align:left;padding:28px}.work-login-options svg{color:var(--accent);width:30px;height:30px;margin-bottom:20px}.work-login-options h2{font-size:23px}.work-login-options p{margin:10px 0 20px}.work-login-options strong{font-size:13px;color:var(--accent)}
.theory-entry{display:block;margin-bottom:14px}.post-images button{padding:0;background:var(--bg);border:0;border-radius:12px;overflow:hidden}.post-images button:only-child{grid-column:1/-1}.post-images button img{aspect-ratio:16/10;object-fit:contain}.level-fields{display:grid;grid-template-columns:90px minmax(0,1fr);gap:12px;margin-top:12px}.level-fields label{display:grid;gap:6px;font-size:12px;color:var(--muted);min-width:0}.level-fields input{width:100%;min-width:0;border:1px solid var(--line);border-radius:10px;background:var(--surface);padding:11px;font-size:13px}.level-fields input:read-only{background:var(--bg)}
.community-workspace .post-images{grid-template-columns:1fr}.community-workspace .post-images img{max-height:220px;aspect-ratio:16/10;object-fit:contain}.community-workspace #circle-log .card{padding:0;border:0;box-shadow:none}.community-workspace .revision-item small{color:var(--muted);font-size:11px}
@media(max-width:850px){.prototype-controls{display:none}.work-shell{grid-template-columns:1fr}.work-sidebar{position:static;min-height:0;padding:18px;border-right:0;border-bottom:1px solid var(--line)}.work-brand{padding-bottom:16px}.work-sidebar nav{grid-template-columns:repeat(3,minmax(0,1fr))}.work-sidebar nav a{font-size:12px;padding:10px 6px;gap:5px}.work-identity{padding:14px 0 0;display:flex;flex-wrap:wrap;align-items:center;gap:14px}.work-content{padding:18px 16px 30px}.work-header{padding:16px}.work-demo{display:none}.work-editor,.work-feedback,.work-content .courses-admin{grid-template-columns:1fr}.work-object-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr))}.work-object-list h3{grid-column:1/-1}.work-feedback .card+.card,.work-editor .card+.card{margin-top:0}.work-section-tools{align-items:flex-start}.work-login{padding:30px 20px}.work-login>h1{font-size:26px}.work-login-options{grid-template-columns:1fr}.work-login-options .card{margin:0}.teaching-stats{gap:8px}.teaching-stats>div{padding:14px 10px}.teaching-stats span{font-size:10px}.work-fields{grid-template-columns:1fr}.work-fields .wide{grid-column:auto}.work-content .courses-admin>.card{width:100%}body.admin-view .phone-frame{width:100%;height:100dvh;border-radius:0}body.admin-view{padding:0}.work-content .admin-list{display:block}}

body{font-weight:var(--weight-regular)}

.page-head h1,.section-head h2{line-height:var(--lh-ui)}

/* 首次登录引导；只覆盖该弹窗，其他聚焦操作沿用原样式。 */
dialog.onboarding-dialog{width:min(380px,calc(100% - 32px));max-height:calc(100dvh - 32px - env(safe-area-inset-top) - env(safe-area-inset-bottom));padding:28px 24px 24px;border-radius:24px}
dialog.onboarding-dialog::backdrop{background:rgba(38,35,33,.3);backdrop-filter:blur(7px);-webkit-backdrop-filter:blur(7px)}
.onboarding-dialog h2{padding-right:28px;font-size:23px;font-weight:var(--weight-heavy);line-height:1.45;letter-spacing:-.035em;margin-bottom:9px}
.onboarding-close{position:absolute;right:8px;top:12px;width:44px;height:44px;display:grid;place-items:center;border-radius:50%;background:none;color:var(--muted)}
.onboarding-close svg{width:19px;height:19px}
.onboarding-dialog .onboarding-intro{font-size:var(--text-meta);line-height:1.75}
.onboarding-steps{display:grid;gap:20px;list-style:none;margin:25px 0 0;padding:0}
.onboarding-step{position:relative;display:flex;align-items:flex-start;gap:12px}
.onboarding-step:not(:last-child)::after{content:"";position:absolute;left:16px;top:38px;bottom:-14px;width:1px;background:var(--line)}
.onboarding-number{display:grid;place-items:center;flex:none;width:32px;height:32px;border-radius:50%;background:var(--accent-soft);color:var(--accent);font-size:var(--text-body);font-weight:var(--weight-heavy)}
.onboarding-step h3{font-size:var(--text-base);font-weight:var(--weight-bold);line-height:1.5;margin:2px 0 4px}
.onboarding-step p{font-size:var(--text-meta);line-height:1.75;margin:0}
.onboarding-dialog .actions{display:block;margin-top:26px}

/* 精选资讯沿用同一套红白表面；首页只增加一个紧凑区块。 */
.news-list{padding:0 18px}
.news-row{position:relative;padding:18px 0;border-bottom:1px solid var(--line)}
.news-row:last-child{border-bottom:0}
.news-story{display:block;min-width:0}
.news-meta{display:flex;align-items:center;flex-wrap:wrap;gap:7px 10px;color:var(--muted);font-size:var(--text-xs);line-height:1.65}
.news-category{color:var(--accent-strong);font-weight:var(--weight-bold)}
.news-meta time{font-variant-numeric:tabular-nums}
.news-row h3{font-size:var(--text-title);font-weight:var(--weight-bold);line-height:1.6;margin:7px 0 6px;overflow-wrap:anywhere}
.news-row p{font-size:var(--text-meta);line-height:1.75;margin:0}
.news-row.compact{display:flex;align-items:center;gap:12px;padding:17px 0}
.news-row.compact .news-story{flex:1}
.news-row.compact h3{font-size:var(--text-base);margin:5px 0 0}
.news-row.compact>svg{width:15px;height:15px;flex:none;color:var(--muted);pointer-events:none}
.news-save{display:flex;min-width:68px;min-height:44px;padding:9px 12px;margin:8px -8px -8px auto;background:none;color:var(--muted);font-size:var(--text-sm);border-radius:var(--radius-pill)}
.news-save[aria-pressed="true"]{color:var(--accent-strong);font-weight:var(--weight-bold)}
.news-list .news-curation{font-size:var(--text-xs);color:var(--muted);padding:12px 0 14px;border-top:1px solid var(--line)}
.news-list .news-row:has(+.news-curation){border-bottom:0}
.news-page-heading{display:flex;align-items:flex-start;gap:12px;justify-content:space-between;padding:4px 4px 0}
.news-page-heading>div{min-width:0}
.news-page-heading h1{margin-bottom:7px}
.news-page-heading p{font-size:var(--text-meta);color:var(--muted);line-height:1.75}
.news-page-heading .text-btn{flex:none;min-height:44px;padding:4px 0}
.news-filters{margin:18px 0}
.news-filters .chip,.search-filters .chip{min-height:44px;font-size:var(--text-meta)}
.news-list-heading{display:flex;justify-content:space-between;gap:10px;font-size:var(--text-sm);color:var(--muted);margin:0 4px 11px}
.news-page-heading+.news-list-heading{margin-top:20px}
.news-source-note{color:var(--muted);font-size:var(--text-sm)!important;line-height:1.8!important;margin:16px 4px 0}
.news-detail{padding:22px 20px}
.news-detail h1{font-size:26px;line-height:1.45;margin:12px 0}
.news-detail .news-deck{font-size:var(--text-body);line-height:1.85}
.news-byline{font-size:var(--text-sm);color:var(--muted);margin-top:16px;font-variant-numeric:tabular-nums}
.news-detail h2{font-size:18px;line-height:1.6;margin:0 0 10px}
.news-facts{padding-left:20px;font-size:var(--text-body);line-height:1.9;margin:0}
.news-facts li+li{margin-top:10px}
.news-takeaway{margin-top:22px;padding:16px;background:var(--bg);border-radius:var(--radius-field)}
.news-takeaway h2{font-size:var(--text-title);margin:8px 0}
.news-takeaway p{font-size:var(--text-body);line-height:1.9;color:var(--text)}
.news-original{display:flex;justify-content:space-between;align-items:center;gap:16px;border-top:1px solid var(--line);margin-top:22px;padding-top:17px;min-height:64px}
.news-original strong{font-size:var(--text-body);color:var(--accent)}
.news-original small{display:block;font-size:var(--text-xs);color:var(--muted);margin-top:4px}
.news-original svg{width:19px;height:19px;color:var(--accent);flex:none}
.news-related{display:flex;align-items:center;gap:12px;margin-top:14px;padding:14px}
.news-related img{width:58px;height:58px;border-radius:12px;object-fit:cover;flex:none}
.news-related small{font-size:var(--text-xs);color:var(--muted)}
.news-related h3{font-size:var(--text-base);margin:4px 0 0}
.news-related>svg{width:17px;height:17px;flex:none;color:var(--muted)}
.news-actions{padding-bottom:8px}
.news-list .empty{padding:32px 4px}

/* 记录先于统计；个人常用入口先于会员介绍。 */
.practice-requirement{margin-top:12px}
.record-overview,.personal-assets{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));margin-top:16px}
.record-overview a,.personal-assets a{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;min-height:80px;padding:12px 6px;text-align:center}
.record-overview a+a,.personal-assets a+a{border-left:1px solid var(--line)}
.record-overview b,.personal-assets b{font-size:25px;font-weight:var(--weight-heavy);line-height:1.2;font-variant-numeric:tabular-nums}
.record-overview span,.personal-assets span{font-size:var(--text-sm);color:var(--muted)}
.personal-assets{grid-template-columns:repeat(2,minmax(0,1fr));padding:6px 0;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);box-shadow:var(--card-shadow)}
.personal-assets b{color:var(--accent)}
.personal-menu{padding:0 18px}
.personal-menu .menu-line{min-height:58px;font-size:var(--text-body);gap:10px}
.menu-symbol{width:28px;height:30px;display:grid;place-items:center;flex:none;color:var(--muted)}
.menu-symbol svg{width:21px;height:21px}
.personal-menu .menu-line>svg{width:15px;height:15px;color:var(--muted);flex:none}
.member-summary{display:flex;align-items:center;gap:12px;margin-top:20px;padding:17px}
.member-summary-icon{width:38px;height:38px;border-radius:12px;background:var(--accent-soft);color:var(--accent);display:grid;place-items:center;flex:none}
.member-summary-icon svg{width:22px;height:22px}
.member-summary h3{font-size:var(--text-base);margin:0 0 5px}
.member-summary p{font-size:var(--text-xs);line-height:1.7}
.member-summary>svg{width:15px;height:15px;flex:none;color:var(--muted)}
.reading-position{display:block;font-size:var(--text-xs);color:var(--muted);margin-top:6px}
.course-availability.ready{color:var(--accent-strong);font-weight:var(--weight-bold)}
.search-clear{width:40px;min-height:44px;background:none;display:grid;place-items:center;flex:none;color:var(--muted)}
.search-clear svg{width:17px;height:17px}
#search-input::-webkit-search-cancel-button{display:none}
.search-filters{margin:0 0 18px}
.search-group-title,.search-suggestions h2{font-size:18px;margin:22px 3px 12px;line-height:1.6}
.search-group-title small{font-size:var(--text-meta);font-weight:400;color:var(--muted);margin-left:5px}
.search-count{font-size:var(--text-sm);color:var(--muted);margin:0 3px 14px;overflow-wrap:anywhere}
.search-suggestions .chip{min-height:44px;font-size:var(--text-meta)}
#share-form>.sub-cta{position:static;margin-top:16px;background:transparent;padding:0}
#share-form>.sub-cta>.text-btn{display:block;width:100%;min-height:44px;margin-top:4px;text-align:center}
#share-form .share-preview{margin-bottom:16px}
.image-choice>.text-btn{grid-column:1/-1;justify-self:start;display:block;min-height:36px;margin:4px 0 0;white-space:nowrap}
.record-context{border-top:1px solid var(--line);padding-top:12px}
.draft-card .actions{margin-top:16px;gap:12px}
.work-live-preview{min-width:0;align-self:start;position:sticky;top:20px}
.work-live-preview .card{padding:16px}.work-live-preview h2{font-size:22px}
@media(min-width:1280px){.work-editor.with-preview{grid-template-columns:210px minmax(0,1fr) 250px}}
@media(max-width:1279px){.work-live-preview{position:static;grid-column:1/-1;max-width:390px}}
@media(min-width:851px) and (max-width:1100px){.work-feedback{grid-template-columns:180px minmax(0,1fr)}.work-feedback>.card:last-child{grid-column:2}}

@media(min-width:851px){.work-editor.growth-workspace{grid-template-columns:minmax(0,1fr) minmax(0,1fr)}}
.managed-video video{display:block;width:100%;height:100%;object-fit:contain}.maintenance-upload{display:grid;gap:8px;margin:12px 0}.maintenance-upload input[type=file]{max-width:100%;font-size:12px}.maintenance-history{max-height:350px;overflow:auto}.maintenance-preview{max-width:430px;margin:auto}.maintenance-preview .sub-body{padding-bottom:16px}.maintenance-checks{display:grid;gap:8px}.maintenance-checks label{display:flex;align-items:flex-start;gap:8px;overflow-wrap:anywhere}.maintenance-checks input{width:auto;flex:none;margin-top:5px}

.maintenance-media-preview{display:block;width:100%;max-height:360px;margin-top:12px;border-radius:12px;background:var(--text)}.maintenance-order .resource-file{gap:8px}.maintenance-order .secondary{padding:8px 10px;white-space:nowrap}

/* Seven themes and two ways to choose the same published courses. */
.learning-page .page-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin:0 0 6px;min-height:44px}.learning-page .page-head h1{font-size:28px;line-height:1.25;letter-spacing:-.025em}
.learning-my-courses{display:inline-flex;align-items:center;gap:3px;min-height:44px;font-size:var(--text-sm);color:var(--muted)}.learning-my-courses svg{width:15px;height:15px}
.learning-resume{display:grid;grid-template-columns:36px minmax(0,1fr) auto;align-items:center;gap:10px;min-height:60px;padding:8px 10px;margin-bottom:10px;border:1px solid var(--line);border-radius:var(--radius-field);background:var(--surface)}
.learning-resume>img{width:36px;height:36px;object-fit:cover;border-radius:8px}.learning-resume-copy{min-width:0}.learning-resume-copy small{display:block;font-size:var(--text-xs);color:var(--muted);line-height:1.6;font-variant-numeric:tabular-nums;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.learning-resume-copy strong{display:block;font-size:var(--text-body);font-weight:var(--weight-medium);line-height:1.5;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.learning-resume-go{display:inline-flex;align-items:center;justify-content:center;gap:2px;min-height:44px;font-size:var(--text-sm);color:var(--accent);font-weight:var(--weight-bold);white-space:nowrap}.learning-resume-go svg{width:14px;height:14px}
.learning-paths{display:flex;align-items:center;gap:24px;margin:0 0 12px;border-bottom:1px solid var(--line)}.learning-paths a{position:relative;display:flex;align-items:center;min-height:44px;padding:0 2px;font-size:var(--text-body);color:var(--muted)}.learning-paths a.active{color:var(--text);font-weight:var(--weight-bold)}.learning-paths a.active:after{content:"";position:absolute;bottom:-1px;left:2px;right:2px;height:2px;background:var(--accent);border-radius:2px}
.learning-filter-bar{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr) auto;gap:8px;align-items:center;margin:0 0 18px}.learning-filter-trigger{display:flex;align-items:center;justify-content:space-between;gap:7px;width:100%;height:44px;min-width:0;padding:0 12px;border:1px solid var(--line);border-radius:var(--radius-pill);background:var(--surface);font-size:var(--text-caption);text-align:left}.learning-filter-trigger span{min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.learning-filter-trigger svg{width:14px;height:14px;transform:rotate(90deg)}.learning-filter-trigger.has-filter{background:var(--accent-soft);color:var(--accent);border-color:var(--accent-soft);font-weight:var(--weight-medium)}.learning-count{color:var(--muted);font-size:var(--text-xs);white-space:nowrap;font-variant-numeric:tabular-nums}
.learning-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px 10px;align-items:start}.learning-catalogue.is-paged .learning-grid{grid-template-rows:repeat(2,1fr)}.learning-course{display:flex;flex-direction:column;align-self:stretch;min-width:0}.learning-cover{position:relative;display:grid;place-items:center;aspect-ratio:1.25;background:var(--accent-soft);border:1px solid rgba(38,35,33,.035);border-radius:12px;overflow:hidden;color:var(--accent)}.learning-cover>svg{width:28px;height:28px;opacity:.65}.learning-cover>img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;background:var(--surface)}
.learning-course h3{margin:8px 0 5px;font-size:var(--text-body);font-weight:var(--weight-medium);line-height:1.5;min-height:3em;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;overflow-wrap:anywhere}.learning-course-meta{display:block;margin-top:auto;font-size:var(--text-xs);line-height:1.6;color:var(--muted)}
.learning-pagination{display:flex;align-items:center;justify-content:center;gap:20px;margin:16px 0 0}.learning-pagination>button{display:inline-flex;align-items:center;justify-content:center;gap:5px;min-width:84px;min-height:44px;padding:0 12px;border:1px solid var(--line);border-radius:var(--radius-pill);background:var(--surface);font-size:var(--text-sm)}.learning-pagination svg{width:13px;height:13px}.learning-pagination button:first-child svg{transform:rotate(180deg)}.learning-pagination>span{min-width:38px;text-align:center;font-size:var(--text-sm);font-variant-numeric:tabular-nums}.learning-pagination small{font-size:inherit;color:var(--muted)}
.learning-utilities{display:flex;justify-content:space-between;flex-wrap:wrap;gap:4px 12px;margin:24px 0 0;padding-top:8px;border-top:1px solid var(--line)}.learning-utilities>a{display:inline-flex;align-items:center;gap:7px;min-height:44px;color:var(--muted);font-size:var(--text-sm);font-weight:var(--weight-regular)}.learning-utilities svg{width:16px;height:16px}.learning-utilities small{font-size:var(--text-xs)}.learning-utilities>a>svg:last-child{width:13px;height:13px;margin-left:1px}.learning-empty{text-align:center;padding:8px 0 16px}.learning-empty .empty{padding-bottom:8px}.learning-theory-link{display:flex;align-items:center;gap:8px;min-height:44px;margin-bottom:16px;font-size:var(--text-sm);color:var(--accent)}.learning-theory-link span{flex:1}
dialog.learning-filter-dialog{padding:20px;max-height:calc(100dvh - 32px - env(safe-area-inset-top) - env(safe-area-inset-bottom))}
.learning-filter-dialog h2{font-size:18px;line-height:1.5;margin-bottom:16px}
.learning-filter-options{display:grid;gap:4px}
.learning-filter-option{display:flex;align-items:center;justify-content:space-between;gap:12px;width:100%;min-height:44px;padding:11px 12px;background:transparent;border-radius:var(--radius-field);font-size:var(--text-body);line-height:1.55;text-align:left}
.learning-filter-option span{min-width:0;overflow-wrap:anywhere}
.learning-filter-option svg{width:18px;height:18px}
.learning-filter-option[aria-pressed="true"]{background:var(--accent-soft);color:var(--accent);font-weight:var(--weight-bold)}
.learning-filter-dialog .actions{display:block;margin-top:16px}
.learning-route-list{display:grid;gap:12px}.learning-route-list>.card+.card{margin-top:0}.learning-route-card{display:flex;align-items:center;gap:12px;padding:16px;text-align:left}
.route-number{flex:0 0 28px;align-self:flex-start;padding-top:1px;font-size:22px;font-weight:var(--weight-bold);line-height:1.2;color:var(--accent)}
.learning-route-card h3{font-size:var(--text-title)}.learning-route-card p{margin:6px 0;font-size:var(--text-card);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.learning-route-card small{color:var(--muted);font-size:var(--text-sm)}
.topic-editor{min-width:0;margin:0;padding:16px;border:1px solid var(--line);border-radius:var(--radius-field)}
.topic-editor legend{padding:0 8px;font-weight:var(--weight-medium)}
.route-preview{margin:16px 0;padding-left:24px}.route-preview li{padding:10px 0;border-bottom:1px solid var(--line);line-height:1.6}

#maintenance-form[data-key^="route:"] .maintenance-checks label{display:flex;align-items:center;gap:10px;cursor:pointer}
#maintenance-form[data-key^="route:"] .maintenance-checks input[type="checkbox"]{width:18px;height:18px;min-height:18px;flex:0 0 18px;margin:0;padding:0;accent-color:var(--accent)}

/* 课程精修：视频工具保持轻量，练习任务、材料与输入各有一层。 */
.course-exercise-page .now-playing{margin:12px 0 18px}
.course-exercise-page .now-playing .lesson-meta{margin:0 0 8px;font-size:13px;line-height:1.6;color:var(--muted)}
.course-exercise-page .now-playing h1{margin:0;font-size:20px;line-height:1.5;letter-spacing:0;text-wrap:balance}
.lesson-playback-tools{display:flex;align-items:center;justify-content:space-between;gap:12px;min-height:44px;margin:4px 0 16px}
.lesson-duration{font-size:13px;color:var(--muted);font-variant-numeric:tabular-nums}
#study-playback-status:empty{display:none}
#study-playback-status:not(:empty){margin:-4px 0 16px;color:var(--accent)}
.exercise-card{padding:20px}
.exercise-card h2{font-size:18px;font-weight:600;line-height:1.5;margin:0 0 10px;letter-spacing:0}
.exercise-prompt{font-size:15px;line-height:1.8}
.exercise-material{border-left:2px solid var(--line);padding:0 0 0 14px;margin:18px 0 24px}
.exercise-material strong{font-size:13px;font-weight:500;color:var(--muted)}
.exercise-material p{margin:6px 0 0;font-size:14px;line-height:1.85}
.exercise-card .field{margin:0}
.exercise-card .field label{font-size:14px;margin-bottom:10px}
.exercise-card textarea{min-height:148px;resize:vertical;line-height:1.75}
.exercise-reference{border-bottom:1px solid var(--line);padding:0 0 4px;margin:10px 0 18px}
.exercise-reference summary,.lesson-extra summary{cursor:pointer;display:flex;align-items:center;justify-content:space-between;font-size:14px;font-weight:500;line-height:1.7;min-height:44px;color:var(--text)}
.exercise-reference[open]{padding-bottom:16px}
.exercise-check-title{font-size:14px;margin-top:18px}
.exercise-checkpoints{padding-left:20px;font-size:14px;line-height:1.85;margin:8px 0 0}
.exercise-checkpoints li+li{margin-top:8px}
.exercise-actions{display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;align-items:center}
.exercise-actions .primary{min-height:44px;padding-inline:22px}
.exercise-help{display:inline-flex;align-items:center;gap:2px;font-size:13px;min-height:44px;color:var(--muted)}
.exercise-help svg{width:16px;height:16px}
.exercise-card .inline-status{font-size:12px;margin-top:10px}
.exercise-next{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:6px 14px;padding:18px 0;border-top:1px solid var(--line)}
.exercise-next span{grid-column:1;font-size:13px;color:var(--muted)}
.exercise-next strong{grid-column:1;font-size:15px;font-weight:500;line-height:1.6}
.exercise-next svg{grid-column:2;grid-row:1/3;align-self:center;width:18px;height:18px}
.lesson-extra{margin-top:8px;padding:6px 0}
.lesson-navigation{display:flex;align-items:center;justify-content:space-between;gap:12px;border-top:1px solid var(--line);padding-top:6px}
.lesson-navigation .text-btn{display:flex;align-items:center;min-height:44px;font-size:14px;font-weight:500}
.lesson-navigation .text-btn:last-child{margin-left:auto}
#study-video:fullscreen{object-fit:contain;background:#000;width:100%;height:100%}