/* 青禾自然绿：浅绿给空间，鼠尾草给气质，深苔绿承担阅读与操作。 */
html[data-theme=nature]{
 --theme-accent:#38664c;--theme-accent-hover:#2a513c;--theme-ink:#22372c;
 --theme-muted:#596759;--theme-paper:#f7f6ef;--theme-line:#d6decf;
 --theme-surface:#fffdf7;--theme-soft:#eef2e6;--theme-stage:#e5ecd9;
 --theme-tint:#e1ead5;--theme-strong-tint:#c7d5b8;--theme-inverse:#f4f7ee;
 --theme-focus:#60845e;--blue:var(--theme-accent);--ink:var(--theme-ink);
 --muted:var(--theme-muted);--paper:var(--theme-paper);--line:var(--theme-line);
 --surface:var(--theme-surface)
}
html[data-theme=nature] body{background:var(--paper)}
html[data-theme=nature] .nav{border-color:var(--line)}
html[data-theme=nature] .brand{color:var(--blue)}
html[data-theme=nature] .a-title .title-second{color:var(--blue)}
html[data-theme=nature] .a-bottom .btn{background:var(--blue)}
html[data-theme=nature] .a-bottom .btn:hover{background:var(--theme-accent-hover)}
html[data-theme=nature] :is(.a-bottom p,.a-free,.a-label,.a-hero-foot){color:var(--muted)}
html[data-theme=nature] .a-label:before{background:var(--blue)}
html[data-theme=nature] .a-object{filter:drop-shadow(0 20px 24px #334c2910)}
html[data-theme=nature] :is(button,a,input,select,textarea):focus-visible{outline-color:var(--theme-focus)}
html[data-theme=nature] :is(.searchbar,.field input,.field textarea,.field select,.service-option,.tag-option,.work-link,.admin-group,.pagination button){background:var(--surface)}
html[data-theme=nature] :is(.pagination button[aria-current=page],.filter-chip[aria-pressed=true],.admin-nav a[aria-current=page],.direction-choice[aria-pressed=true]){background:var(--blue);color:var(--theme-inverse)}
html[data-theme=nature] .direction-choice[aria-pressed=true] small{color:var(--theme-inverse)}
html[data-theme=nature] .direction-choice[aria-pressed=true]:hover{background:var(--theme-accent-hover)}
html[data-theme=nature] .mentor-visual{background:#dfe9d3;color:#3b6145}
html[data-theme=nature] .mentor-visual[data-tone="1"]{background:#e2e7dc;color:#52694e}
html[data-theme=nature] .mentor-visual[data-tone="2"]{background:#eae2cf;color:#726349}
html[data-theme=nature] .mentor-visual[data-tone="3"]{background:#dce8df;color:#49675b}
html[data-theme=nature] .detail-aside .mentor-visual{background:transparent}
html[data-theme=nature] .prototype-tools summary{background:var(--theme-surface)}
html[data-theme=nature] .prototype-tools>div{background:var(--theme-surface)}
html[data-theme=nature] dialog{background:var(--theme-surface);color:var(--ink)}
html[data-theme=nature] .dialog-close{background:var(--theme-soft)}
html[data-theme=nature] .toast{background:var(--ink)}