/* Deliberately inherit the site's five themes, serif voice, and existing buttons. */
.assist-home-entry{display:flex;align-items:center;flex-wrap:wrap;gap:4px 14px;margin:14px 0 0;color:var(--muted);font-size:12px}
.assist-home-entry .text-btn,.assist-editor-tools .text-btn{min-height:40px}

.assist-card h3{font:500 25px/1.65 var(--serif);margin:14px 0}
.assist-lead{font:16px/1.95 var(--serif);white-space:pre-wrap;overflow-wrap:anywhere}
.assist-tip{padding:14px 16px;background:var(--bg);border-radius:10px;margin:18px 0;color:var(--muted);font-size:13px;line-height:1.85}
.assist-tip p{margin:6px 0 0;white-space:pre-wrap}
.assist-note{font-size:12px;line-height:1.85;color:var(--muted);overflow-wrap:anywhere}
.assist-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:22px}.assist-actions .btn{min-height:44px}
.assist-actions-stack{flex-direction:column;align-items:stretch}
.assist-method-list{display:grid;gap:10px;margin-top:18px}
.assist-method-item{display:flex;flex-direction:column;gap:7px;width:100%;text-align:left;padding:15px;border:1px solid var(--line);border-radius:10px;background:var(--panel);color:var(--ink);cursor:pointer;font:13px/1.7 var(--sans)}
.assist-method-item:hover{border-color:var(--accent)}.assist-method-heading{display:flex;flex-wrap:wrap;gap:5px 12px;align-items:baseline;justify-content:space-between}.assist-method-heading strong{font:500 17px/1.6 var(--serif)}.assist-method-heading>span{font-size:11px;color:var(--muted)}
.assist-method-reference{margin:0 0 22px;padding:13px 16px;border:1px solid var(--line);border-radius:10px;background:var(--bg)}
.assist-method-reference>summary{cursor:pointer;font:500 16px/1.8 var(--serif)}.assist-method-reference>summary span{font:11px var(--sans);color:var(--muted);margin-left:12px}
.assist-steps{padding-left:22px;margin:18px 0;font-size:13px;line-height:1.9}.assist-steps li{padding-left:4px;margin:0 0 14px}.assist-steps p{margin:3px 0 0;color:var(--muted)}
.assist-source-details{margin:14px 0;font-size:12px;line-height:1.85}.assist-source-details>summary{cursor:pointer;color:var(--muted)}
.assist-source{font-size:11px;line-height:1.85;color:var(--muted);overflow-wrap:anywhere;margin:12px 0}.assist-source p{margin:6px 0}.assist-source a{color:var(--accent);text-decoration:underline}
[data-assist]:focus-visible,[data-assist-method]:focus-visible,[data-assist-use]:focus-visible,.assist-method-reference summary:focus-visible{outline:2px solid var(--accent);outline-offset:3px}
@media(max-width:750px){.assist-home-entry{gap:0 8px;font-size:11px;margin-top:8px}.assist-card h3{font-size:22px}.assist-method-reference{padding:12px}.assist-editor-tools{gap:4px 18px}}
/* Writing practice: same quiet panels, spacing, typography and five themes as 写间. */
.practice-page-head{margin-bottom:28px}.practice-catalog-top{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:18px}.practice-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
.practice-method-card{background:var(--panel);border:1px solid var(--line);border-radius:16px;padding:24px;display:flex;flex-direction:column;min-width:0}.practice-card-top,.practice-card-bottom,.practice-back-row,.practice-final-top{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap}.practice-card-top .subtle{font-size:11px}.practice-method-card h2{font:500 23px/1.6 var(--serif);margin:18px 0 8px}.practice-card-summary{font:15px/1.8 var(--serif);margin:0 0 8px}.practice-card-fit{font-size:12px;line-height:1.9;color:var(--muted);margin:0 0 24px}.practice-card-bottom{margin-top:auto;padding-top:14px;border-top:1px solid var(--line)}
.practice-layout{display:grid;grid-template-columns:minmax(0,1fr) 260px;gap:28px;align-items:start}.practice-main{min-width:0}.practice-work-heading{margin:26px 0 24px}.practice-work-heading h1{font:500 30px/1.65 var(--serif);margin:8px 0}.practice-work-heading>p{font-size:13px;line-height:1.9;color:var(--muted);margin:0}.practice-progress{display:flex;gap:2px;border-bottom:1px solid var(--line);margin:0 0 12px}.practice-progress button{flex:1;min-width:0;padding:12px 2px;border:0;border-bottom:2px solid transparent;background:transparent;color:var(--muted);font:12px/1.6 var(--sans);cursor:pointer}.practice-progress button.is-active{color:var(--accent);border-bottom-color:var(--accent);font-weight:600}.practice-save-line{display:flex;justify-content:space-between;align-items:center;gap:12px;min-height:40px;margin-bottom:12px;font-size:11px;color:var(--muted)}.practice-save-error{color:var(--danger-text)}
.practice-sheet{background:var(--panel);border:1px solid var(--line);border-radius:16px;padding:28px}.practice-step-title{font:500 25px/1.7 var(--serif);margin:0 0 14px}.practice-step-eyebrow{font-size:11px;color:var(--muted);margin-bottom:8px}.practice-lead{font:16px/1.95 var(--serif);margin:0 0 22px;overflow-wrap:anywhere}.practice-prep-block{margin:20px 0;font-size:13px;line-height:1.9}.practice-prep-block h3,.practice-about h3{font-size:14px;margin:20px 0 8px}.practice-prep-block p{color:var(--muted);margin:0}.practice-intent{display:flex;flex-wrap:wrap;gap:10px;margin:24px 0}.practice-field-label{display:block;font-size:12px;margin:18px 0 9px;color:var(--muted)}.practice-textarea{width:100%;min-height:240px;resize:vertical;border:1px solid var(--line);border-radius:10px;padding:16px;background:var(--panel);color:var(--ink);font:16px/2 var(--serif);box-sizing:border-box}.practice-answer{min-height:320px;display:block}.practice-textarea:focus{outline:1px solid var(--accent);border-color:var(--accent)}
.practice-example,.practice-reference{margin:20px 0;padding:16px;background:var(--bg);border-radius:10px;font-size:13px;line-height:1.9}.practice-example p,.practice-reference p{white-space:pre-wrap;overflow-wrap:anywhere;color:var(--muted);margin:10px 0 0}.practice-reference h3{font-size:12px;margin:16px 0 4px}.practice-example summary,.practice-reference summary,.practice-source summary{cursor:pointer}.practice-source{font-size:11px;line-height:1.9;color:var(--muted);margin:24px 0 0;overflow-wrap:anywhere}.practice-source a{color:var(--accent);text-decoration:underline}.practice-about{font-size:14px;line-height:1.9}.practice-step-preview{padding-left:22px;margin:24px 0}.practice-step-preview li{padding-left:5px;margin:16px 0}.practice-step-preview p{margin:5px 0;color:var(--muted)}
.practice-bottom-actions{display:flex;justify-content:space-between;gap:14px;margin:22px 0}.practice-bottom-actions .btn,.practice-actions .btn{min-height:44px}.practice-aside p{font-size:13px;line-height:1.95}.practice-aside h3{font:500 16px var(--serif);margin-top:28px}.practice-aside .subtle{font-size:11px;border-top:1px solid var(--line);padding-top:18px;margin-top:24px}.practice-final-header{margin:0 0 22px;padding:16px 0 4px}.practice-final-header .practice-progress{margin-top:14px}.practice-final-actions{display:flex;gap:10px 18px;align-items:center;flex-wrap:wrap;margin:12px 0}.practice-adopt-list article{border-top:1px solid var(--line);padding:16px 0}.practice-adopt-list h3{font:500 17px var(--serif)}.practice-adopt-list p{white-space:pre-wrap;max-height:160px;overflow:auto;font-size:13px;line-height:1.9}.practice-actions{margin-top:22px}.practice-final-top .pill{white-space:normal}
[data-practice]:focus-visible,[data-practice-stage]:focus-visible,[data-practice-start]:focus-visible,[data-practice-about]:focus-visible{outline:2px solid var(--accent);outline-offset:3px}
@media(max-width:1050px){.practice-layout{grid-template-columns:minmax(0,1fr)}.practice-aside{display:none}}
@media(max-width:750px){.practice-desktop-note{display:none!important}.practice-page-head{margin-bottom:20px}.practice-catalog-top>.subtle{font-size:11px}.practice-grid{grid-template-columns:minmax(0,1fr);gap:12px}.practice-method-card{padding:18px;border-radius:14px}.practice-method-card h2{font-size:22px;margin:13px 0 16px}.practice-card-bottom{padding-top:10px}.practice-card-bottom .text-btn,.practice-back-row .text-btn{min-height:44px}.practice-work-heading{margin:18px 0}.practice-work-heading h1{font-size:26px}.practice-progress{gap:0}.practice-progress button{font-size:11px;min-height:44px}.practice-sheet{padding:20px 16px;border-radius:14px}.practice-step-title{font-size:22px}.practice-lead{font-size:15px}.practice-answer{min-height:280px}.practice-save-line{font-size:10px;gap:5px}.practice-final-header{padding-top:0}.practice-final-top .pill{max-width:calc(100% - 85px);font-size:10px}.practice-final-actions{gap:8px 12px}.assist-home-entry .practice-desktop-note{display:none!important}}


.library-filter-options[data-library-filter-group="type"]{flex-wrap:nowrap}.library-filter-options[data-library-filter-group="type"] .library-filter-option{flex:1;min-width:0;padding-left:6px;padding-right:6px;white-space:nowrap}

/* Quiet, text-led filters. Custom disclosures avoid oversized OS select menus. */
.practice-heading-row{display:flex;align-items:center;justify-content:space-between;gap:16px}
.practice-heading-row h1{margin:0;min-width:0}
.practice-heading-row>.text-btn{flex-shrink:0;min-height:44px;font-size:12px;white-space:nowrap}
.practice-discovery{display:flex;align-items:center;gap:24px;margin:0 0 6px}
.practice-discovery .search{flex:1;min-width:180px;width:auto;max-width:none;box-sizing:border-box;height:44px}
.practice-discovery .search .input{width:100%;height:44px;min-height:44px;padding:10px 12px 10px 38px;border:1px solid transparent;border-radius:10px;background:var(--soft);color:var(--ink);font:13px/1.5 var(--sans);box-shadow:none}
.practice-discovery .search .input::placeholder{color:var(--muted);opacity:1}
.practice-discovery .search .input:focus{border-color:var(--border-strong);outline:2px solid var(--accent-soft);outline-offset:1px;background:var(--panel)}
.practice-discovery-controls{display:flex;align-items:center;gap:18px;min-width:0}
.practice-filter{position:relative;flex:0 1 auto;min-width:0}
.practice-filter>summary{display:flex;align-items:center;justify-content:space-between;gap:8px;min-height:44px;padding:0 2px;color:var(--muted);font:13px/1.4 var(--sans);cursor:pointer;list-style:none;white-space:nowrap;border-radius:4px;-webkit-tap-highlight-color:transparent}
.practice-filter>summary::-webkit-details-marker{display:none}
.practice-filter>summary>span{overflow:hidden;text-overflow:ellipsis}
.practice-filter-chevron{flex-shrink:0;transition:transform .15s ease}
.practice-filter[open]>summary,.practice-filter.is-active>summary{color:var(--accent-ink)}
.practice-filter[open] .practice-filter-chevron{transform:rotate(180deg)}
.practice-filter.is-active>summary>span{text-decoration:underline;text-decoration-color:var(--border-strong);text-underline-offset:6px}
.practice-filter-menu{position:absolute;z-index:20;top:calc(100% + 3px);left:-10px;width:184px;max-width:calc(100vw - 32px);max-height:min(320px,55dvh);overflow-y:auto;overscroll-behavior:contain;box-sizing:border-box;padding:6px;background:var(--panel);border:1px solid var(--line);border-radius:12px;box-shadow:0 8px 28px rgba(var(--shadow-rgb),.12)}
.practice-filter:last-child .practice-filter-menu{left:auto;right:0}
.practice-filter-option{display:flex;align-items:center;justify-content:space-between;gap:12px;box-sizing:border-box;width:100%;min-height:44px;padding:10px 12px;border:0;border-radius:7px;background:transparent;color:var(--ink);font:13px/1.4 var(--sans);text-align:left;cursor:pointer}
.practice-filter-option svg{visibility:hidden;flex-shrink:0;color:var(--accent-ink)}
.practice-filter-option[aria-pressed="true"]{background:var(--accent-soft);color:var(--accent-ink)}
.practice-filter-option[aria-pressed="true"] svg{visibility:visible}
.practice-filter>summary:focus-visible,.practice-filter-option:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
@media(hover:hover){.practice-filter>summary:hover{color:var(--ink)}.practice-filter-option:hover{background:var(--soft)}}
.practice-results-meta{display:flex;align-items:center;justify-content:space-between;min-height:40px;gap:10px;margin:0 0 12px;font-size:12px}
.practice-empty{background:var(--panel);border:1px solid var(--line);border-radius:14px}
@media(max-width:1050px){.practice-discovery{flex-direction:column;align-items:stretch;gap:2px}.practice-discovery .search{flex:none;min-width:0;width:100%}.practice-discovery-controls{gap:24px}}
@media(max-width:750px){
 .practice-page-head{margin-bottom:18px}
 .practice-heading-row>.text-btn{font-size:11px}
 .practice-discovery{gap:2px;margin-bottom:0}
 .practice-discovery-controls{gap:20px;border-bottom:1px solid var(--line);padding:2px 0 3px}
 .practice-discovery .search .input{font-size:16px}
 .practice-filter>summary{font-size:12px;gap:6px}
 .practice-filter-menu{left:0}
 .practice-filter:last-child .practice-filter-menu{left:auto;right:0}
 .practice-results-meta{font-size:11px;margin-bottom:8px}
}
@media(prefers-reduced-motion:reduce){.practice-filter-chevron{transition:none}}

/* Action-first instructions: essential help stays visible on mobile. */
.practice-quick-path{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));list-style:none;padding:0;margin:0 0 22px;gap:12px;color:var(--muted);font-size:12px;line-height:1.7}.practice-quick-path li{min-width:0;overflow-wrap:anywhere}.practice-quick-path li>span{display:block;font-size:11px;color:var(--accent);margin-bottom:3px}.practice-task-example{border-left:2px solid var(--line);padding:2px 0 2px 14px;margin:20px 0;color:var(--muted);font-size:13px;line-height:1.85}.practice-task-example>span{font-size:11px}.practice-task-example p{white-space:pre-wrap;overflow-wrap:anywhere;margin:5px 0 0;color:var(--ink)}.practice-setup,.practice-final-note{font-size:13px;line-height:1.85;color:var(--muted)}.practice-start-action{margin:22px 0 8px}.practice-start-action .btn{min-height:44px;max-width:100%;white-space:normal;text-align:left}.practice-materials,.practice-more{border-top:1px solid var(--line);margin-top:22px;padding-top:18px;font-size:13px;line-height:1.85}.practice-materials summary,.practice-more summary{cursor:pointer;color:var(--muted)}.practice-materials p,.practice-more p{color:var(--muted)}.practice-answer::placeholder{color:var(--muted);opacity:.7}
@media(max-width:750px){.practice-quick-path{gap:10px;font-size:11px;margin-bottom:18px}.practice-task-example{font-size:13px;padding-left:12px;margin:18px 0}.practice-start-action .btn{width:100%;justify-content:center;text-align:center}.practice-setup,.practice-final-note{font-size:12px}}

/* Inspiration stays a free-writing aid; home links share the writing heading. */
.assist-inspiration-btn{display:inline-flex;align-items:center;justify-content:center;gap:7px;flex-shrink:0;min-height:40px;padding:8px 12px;border:0;border-radius:0;background:transparent;color:var(--accent-ink);font:400 14px/1.4 var(--sans);white-space:nowrap;cursor:pointer}
.assist-inspiration-btn svg{flex:none;stroke-width:1.4;opacity:.8}
.assist-inspiration-btn:focus-visible{outline:2px solid var(--accent);outline-offset:3px}
@media(hover:hover){.assist-inspiration-btn:hover span{text-decoration:underline;text-underline-offset:4px}}
.assist-inspiration-btn:active{opacity:.7}
.assist-editor-head{display:flex;align-items:center;justify-content:space-between;gap:16px;margin:0 0 18px}
.assist-editor-label{font:13px/1.6 var(--sans);color:var(--muted)}
.assist-editor-head+.edit-title{margin-top:0}
.home-continue-head{gap:12px;flex-wrap:wrap}.home-continue-head h2{flex-shrink:0}
.home-continue-tools{margin-left:auto;display:flex;align-items:center;justify-content:flex-end;gap:16px;flex-wrap:wrap}
.home-continue-tools>:is(.home-practice-link,.assist-inspiration-btn){display:inline-flex;align-items:center;justify-content:center;gap:7px;flex-shrink:0;min-height:44px;padding:0;border:0;border-radius:0;background:transparent;color:var(--accent-ink);font:400 13px/1.4 var(--sans);white-space:nowrap;cursor:pointer}
.home-continue-tools>:is(.home-practice-link,.assist-inspiration-btn) svg{width:16px;height:16px;flex:none;stroke-width:1.4;opacity:.8}
.home-continue-tools>:is(.home-practice-link,.assist-inspiration-btn):focus-visible{outline:2px solid var(--accent);outline-offset:3px}
@media(hover:hover){.home-continue-tools>:is(.home-practice-link,.assist-inspiration-btn):hover span{text-decoration:underline;text-underline-offset:4px}}
.home-continue-tools>:is(.home-practice-link,.assist-inspiration-btn):active{opacity:.7}
.home-writing-choices{grid-template-columns:minmax(0,1.4fr) minmax(0,1fr)}
.home-writing-choices>.feature-card{min-width:0;min-height:164px;text-align:left}
.home-writing-choices>.home-free-card{display:flex;align-items:flex-start;gap:12px}
.home-free-main{display:flex;flex:1;min-width:0;flex-direction:column;align-items:flex-start;gap:14px;padding:0;border:0;background:none;color:var(--ink);text-align:left;cursor:pointer}
.home-writing-choices .feature-icon{margin:0;flex-shrink:0}
.home-choice-copy{display:flex;flex-direction:column;gap:8px;min-width:0}
.home-choice-title{font:500 20px/1.4 var(--serif);color:var(--ink)}
.home-choice-description{font:12px/1.8 var(--sans);color:var(--muted)}
.home-writing-choices>.home-shortcut-card{display:flex;flex-direction:column;align-items:flex-start;gap:14px}
@media(min-width:751px) and (max-width:1150px){.home-writing-choices{grid-template-columns:minmax(0,1fr)}.home-writing-choices>.feature-card{min-height:0}.home-free-main{flex-direction:row;align-items:center}.home-writing-choices>.home-shortcut-card{flex-direction:row;align-items:center}}
@media(max-width:750px){
 .assist-inspiration-btn{min-height:44px;padding:9px 5px;font-size:13px;gap:6px}
 .assist-editor-head{gap:12px;margin-bottom:12px}
 .assist-editor-label{font-size:13px;white-space:nowrap}
 .assist-editor-caption{display:none}
 .page-home .home-continue,.activity-on .activity-home-layout .home-continue{margin-top:14px}
 .page-home .home-continue-head{display:flex!important;align-items:center;justify-content:space-between;gap:12px;min-height:44px;margin:0 3px 2px}
 .page-home .home-continue-head h2{display:block;margin:0;font:500 14px/1.5 var(--sans);color:var(--muted)}
 .page-home .home-continue-tools{gap:12px;flex-wrap:nowrap}
 .home-continue-tools>[data-nav="topics"],.home-continue-tools>.subtle{display:none!important}
 .page-home .home-continue-head .home-practice-link{min-height:44px;padding:0;font-size:13px}
 .page-home .home-writing-choices{grid-template-columns:minmax(0,1fr);gap:10px;margin:0}
 .page-home .home-writing-choices>.feature-card,.activity-on .activity-home-layout .home-writing-choices>.feature-card{min-height:66px;padding:10px 13px;border:1px solid var(--line);border-radius:15px;background:var(--panel)}
 .page-home .home-writing-choices>.home-free-card{display:flex;align-items:center;gap:10px}
 .page-home .home-free-card:after{display:none}
 .home-free-main{flex-direction:row;align-items:center;gap:11px;min-height:44px}
 .home-writing-choices .feature-icon{display:grid;place-items:center;width:38px;height:38px;border-radius:11px}
 .home-writing-choices .feature-icon svg{width:17px;height:17px}
 .home-choice-title{font:500 15px/1.5 var(--sans)}
 .home-choice-description{display:none}
 .page-home .home-writing-choices>.home-shortcut-card{display:grid;grid-template-columns:38px minmax(0,1fr) 18px;align-items:center;column-gap:11px}
 .home-shortcut-card>.home-choice-copy{grid-column:2;grid-row:1}
 .page-home .home-writing-choices>.feature-card:hover{transform:none}
}

/* Complete practice library: readable guidance and opt-in, local-only word tools. */
.practice-method-meta{font-size:12px;color:var(--muted);line-height:1.6;margin:0 0 9px}
.practice-tool{border:1px solid var(--line);background:var(--soft);border-radius:14px;padding:18px;margin-top:20px;min-width:0}
.practice-tool h3{margin:0 0 10px;font-size:16px}.practice-tool p{font-size:14px;line-height:1.8;overflow-wrap:anywhere}
.practice-tool label{display:block;margin:12px 0 6px;font-size:13px}.practice-tool .input{max-width:100%}
.practice-tool-actions{display:flex;flex-wrap:wrap;gap:8px;margin-top:10px}.practice-tool-result{white-space:pre-wrap}
.practice-tool #practice-tool-error{color:var(--danger,#a44032)}.practice-tool textarea{min-height:120px}
.practice-task-example p,.practice-example p{white-space:pre-wrap}
@media(max-width:600px){.practice-card-summary{display:block!important;font-size:14px;line-height:1.8}.practice-tool{padding:14px}.practice-tool .btn{min-height:44px}.practice-tool .input{font-size:16px}.practice-method-meta{font-size:12px}}