@layer reset,tokens,base,layout,shortcodes,plugins,themes;@layer tokens{:root{--moss-font-body:-apple-system,BlinkMacSystemFont,'Helvetica Neue','Moss PingFang SC','PingFang SC','Hiragino Sans GB','Microsoft YaHei','Noto Sans SC','WenQuanYi Micro Hei',sans-serif;--moss-font-heading:'Source Han Serif SC','Noto Serif CJK SC','Songti SC','STSongti','NSimSun','SimSun','Source Serif 4','Source Serif Pro','Times New Roman',Times,serif;--moss-font-heading-weight:480;--moss-font-mono:ui-monospace,'Cascadia Code','SF Mono',SFMono-Regular,'JetBrains Mono',Menlo,Consolas,'Liberation Mono','Courier New',monospace;--moss-font-weight-body:320;--moss-read-caption:calc(var(--moss-reading-size) * 0.722);--moss-read-h1:calc(var(--moss-reading-size) * 1.667);--moss-read-h2:calc(var(--moss-reading-size) * 1.333);--moss-read-h3:calc(var(--moss-reading-size) * 1.125);--moss-read-h4:calc(var(--moss-reading-size) * 1.028);--moss-read-h5:calc(var(--moss-reading-size) * 0.889);--moss-read-h6:calc(var(--moss-reading-size) * 0.778);--moss-read-title:calc(var(--moss-reading-size) * 2.222);--moss-reading-script-scale:1;--moss-reading-size:calc(var(--moss-reading-size-base) * var(--moss-reading-script-scale));--moss-reading-size-base:1.125rem;--moss-size-2xl:1.625rem;--moss-size-2xs:0.75rem;--moss-size-lg:1.25rem;--moss-size-md:1.125rem;--moss-size-sm:1rem;--moss-size-xl:1.375rem;--moss-size-xs:0.875rem;--moss-border-light:#e6e2db;--moss-border-medium:#d1cdc4;--moss-border-strong:#8e8b85;--moss-color-accent:#2d5a2d;--moss-color-accent-hover:color-mix(in oklch,var(--moss-color-accent) 85%,black);--moss-color-accent-quiet:rgba(45,90,45,0.28);--moss-color-bg:#faf8f5;--moss-color-muted:#716d69;--moss-color-surface:#f4f1ec;--moss-color-text:#2c2825;--moss-color-text-secondary:#5d5853;--moss-color-ui-accent:var(--moss-color-accent);--moss-code-accent-primary:#2d5a2d;--moss-code-accent-quaternary:#6b5b4f;--moss-code-accent-secondary:#5d5853;--moss-code-accent-tertiary:#74706c;--moss-code-background:#f8f6f3;--moss-code-border:#e0ddd6;--moss-hl-addition-bg:rgba(74,106,42,0.1);--moss-hl-attr:#5a6a4a;--moss-hl-builtin:#2d5a2d;--moss-hl-comment:#787064;--moss-hl-deletion:#8a4a3a;--moss-hl-deletion-bg:rgba(138,74,58,0.1);--moss-hl-function:#3a5a6a;--moss-hl-keyword:#7a5834;--moss-hl-meta:#7c6e5f;--moss-hl-number:#6b5b8a;--moss-hl-operator:#5d5853;--moss-hl-string:#4a6a2a;--moss-hl-tag:#7a5834;--moss-hl-type:#8a5a3a;--moss-container-padding:clamp(1rem,5vw,2rem);--moss-content-width:calc(42 * var(--moss-reading-size));--moss-content-width-sidebar:calc(39 * var(--moss-reading-size));--moss-sidebar-width:280px;--moss-site-max-width:1200px;--moss-width-wide:min(calc(56 * var(--moss-reading-size)),var(--moss-site-max-width));--moss-space-2xl:4rem;--moss-space-lg:2rem;--moss-space-md:1.5rem;--moss-space-sm:1rem;--moss-space-xl:3rem;--moss-space-xs:0.5rem}[data-theme="dark"]{--moss-border-light:#332e25;--moss-border-medium:#443d32;--moss-border-strong:#6f6a61;--moss-color-accent:#6a9a5a;--moss-color-accent-hover:color-mix(in oklch,var(--moss-color-accent) 80%,white);--moss-color-accent-quiet:rgba(74,124,74,0.4);--moss-color-bg:#1c1914;--moss-color-muted:#9a9080;--moss-color-surface:#252017;--moss-color-text:#d4cbba;--moss-color-text-secondary:#b0a696;--moss-code-accent-primary:#6a9a5a;--moss-code-accent-quaternary:#92857a;--moss-code-accent-secondary:#b0a696;--moss-code-accent-tertiary:#9a9080;--moss-code-background:#221f1a;--moss-code-border:#332e25;--moss-hl-addition-bg:rgba(138,186,106,0.12);--moss-hl-attr:#a0b880;--moss-hl-builtin:#6a9a5a;--moss-hl-comment:#8e8578;--moss-hl-deletion:#d08070;--moss-hl-deletion-bg:rgba(208,128,112,0.12);--moss-hl-function:#7ab0c0;--moss-hl-keyword:#d4a06a;--moss-hl-meta:#b0a080;--moss-hl-number:#b0a0d0;--moss-hl-operator:#b0a696;--moss-hl-string:#8aba6a;--moss-hl-tag:#d4a06a;--moss-hl-type:#d0a070}}@font-face{font-family:'Moss Long Cang';src:url(data:font/woff2;base64,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) format('woff2');font-weight:400;font-display:swap;unicode-range:U+9752,U+82D4}@font-face{font-family:'Moss PingFang SC';src:local('PingFangSC-Regular'),local('PingFang SC Regular'),local('PingFang SC');font-weight:100 449}@font-face{font-family:'Moss PingFang SC';src:local('PingFangSC-Medium'),local('PingFang SC Medium');font-weight:500}@font-face{font-family:'Moss PingFang SC';src:local('PingFangSC-Semibold'),local('PingFang SC Semibold');font-weight:600}@font-face{font-family:'Moss PingFang TC';src:local('PingFangTC-Regular'),local('PingFang TC Regular'),local('PingFang TC');font-weight:100 449}@font-face{font-family:'Moss PingFang TC';src:local('PingFangTC-Medium'),local('PingFang TC Medium');font-weight:500}@font-face{font-family:'Moss PingFang TC';src:local('PingFangTC-Semibold'),local('PingFang TC Semibold');font-weight:600}@layer shortcodes{.moss-btn{font-family:inherit;font-size:var(--moss-size-sm,1rem);font-weight:500;border:none;border-radius:4px;padding:var(--moss-space-xs,0.5rem) var(--moss-space-md,1.5rem);cursor:pointer;white-space:nowrap;transition:opacity 0.15s ease}.moss-btn:focus-visible{outline:2px solid var(--moss-color-ui-accent);outline-offset:2px}.moss-input{font-family:inherit;font-size:var(--moss-reading-size,1.125rem);border:none;border-bottom:1px solid var(--moss-border-strong);border-radius:0;padding:var(--moss-space-xs,0.5rem) 0;width:100%;outline:none;background:transparent;transition:border-color 0.2s ease}.moss-input:focus{border-bottom-color:var(--moss-color-text)}.moss-input:disabled{opacity:0.5;cursor:not-allowed}.moss-label{display:block;font-size:var(--moss-size-sm,1rem);margin-bottom:var(--moss-space-xs,0.5rem)}.moss-label--small{font-size:0.875rem}.moss-field{display:flex;flex-direction:column;gap:4px}.moss-field--inline{flex-direction:row;align-items:center}.moss-field--inline .moss-input{flex:1}.moss-info-grid{display:grid;grid-template-columns:auto 1fr;gap:12px 16px;align-items:baseline}.moss-info-grid >.moss-field--inline{display:contents}.moss-info-grid >.moss-field--inline >.moss-label{margin-bottom:0}.moss-link{color:var(--moss-color-accent);text-decoration:none;cursor:pointer}.moss-link:hover{text-decoration:underline}.moss-row{display:flex;gap:12px}.moss-row >.moss-field{flex:1}.moss-input-feedback{font-size:var(--moss-size-2xs);white-space:nowrap;opacity:0;transition:opacity 0.3s ease;min-height:1em}.moss-input-feedback--success{color:var(--moss-success,#10b981);opacity:1}.moss-input-feedback--error{color:var(--moss-error,#c85450);opacity:1}.moss-input-feedback--fade-out{opacity:0}*{box-sizing:border-box}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:rgba(128,128,128,0);border-radius:3px}::-webkit-scrollbar-corner{background:transparent}.is-scrolling ::-webkit-scrollbar-thumb{background:rgba(128,128,128,0.25)}.is-scrolling ::-webkit-scrollbar-thumb:hover{background:rgba(128,128,128,0.5)}::selection{background:rgba(45,90,45,0.15)}[data-theme="dark"] ::selection{background:rgba(106,154,90,0.25)}html[lang="zh-Hant"]{--moss-font-body:-apple-system,BlinkMacSystemFont,'Helvetica Neue','Moss PingFang TC','PingFang TC','Moss PingFang SC','PingFang SC','Microsoft JhengHei','Noto Sans TC',sans-serif;--moss-font-heading:'Source Han Serif TC','Noto Serif CJK TC','Songti TC','Songti SC','STSongti','PMingLiU','MingLiU','Source Serif 4','Source Serif Pro','Times New Roman',Times,serif}a:where(:hover,:focus-visible),button:where(:hover,:focus-visible){transition:color 0.15s ease,background-color 0.15s ease,border-color 0.15s ease}@media (prefers-reduced-motion:reduce){a:where(:hover,:focus-visible),button:where(:hover,:focus-visible){transition:none}}a:focus-visible{outline:2px solid var(--moss-color-ui-accent);outline-offset:2px}html{font-size:100%;-webkit-text-size-adjust:100%;height:100%}body{font-family:var(--moss-font-body);font-size:var(--moss-reading-size);font-weight:var(--moss-font-weight-body);line-height:1.75;color:var(--moss-color-text);background:var(--moss-color-bg);margin:0;padding:0;--moss-sidenote-inset:clamp(0px,calc(2 * var(--moss-sidenote-reserve,0px) + var(--moss-content-width) - 100vw),var(--moss-sidenote-reserve,0px));padding-right:var(--moss-sidenote-inset);display:flex;flex-direction:column;min-height:100vh;overflow-x:clip}strong,b{font-weight:480}h1,h2,h3,h4,h5,h6{font-family:var(--moss-font-heading);font-weight:var(--moss-font-heading-weight);line-height:1.4;color:var(--moss-color-text);margin:var(--moss-space-xl) 0 var(--moss-space-md) 0}h1:not(.moss-card-title):not(.moss-folder-title):not(.moss-article-title){margin:var(--moss-space-2xl) 0 var(--moss-space-sm) 0}h2:not(.moss-card-title){margin:var(--moss-space-xl) 0 var(--moss-space-sm) 0}h3:not(.moss-card-title){margin:var(--moss-space-lg) 0 var(--moss-space-xs) 0}.moss-hero ~ main article h2:not(.moss-card-title){margin-top:var(--moss-space-2xl)}h1{font-weight:var(--moss-font-heading-weight);border-bottom:none;padding-bottom:0}h2{font-size:var(--moss-size-xl)}h3{font-size:var(--moss-size-lg)}h4{font-size:var(--moss-size-md)}h5{font-size:var(--moss-size-sm)}h6{font-size:var(--moss-size-xs);color:var(--moss-color-text-secondary)}article h1{font-size:var(--moss-read-h1)}article h2{font-size:var(--moss-read-h2)}article h3{font-size:var(--moss-read-h3)}article h4{font-size:var(--moss-read-h4)}article h5{font-size:var(--moss-read-h5)}article h6{font-size:var(--moss-read-h6)}article h1,article h2,article h3,article h4,article h5,article h6{font-family:var(--moss-font-body)}.moss-heading-anchor{margin-inline-start:0.4em;font-size:0.8em;font-weight:400;color:color-mix(in oklch,var(--moss-color-text-secondary) 45%,var(--moss-color-bg));text-decoration:none;opacity:0;transition:opacity 0.12s ease,color 0.12s ease;user-select:none}.moss-heading-anchor::after{content:"#"}:is(h1,h2,h3,h4,h5,h6):hover .moss-heading-anchor,.moss-heading-anchor:focus-visible{opacity:1}.moss-heading-anchor:hover,.moss-heading-anchor:focus-visible{color:var(--moss-color-accent-hover)}html{scroll-padding-top:calc(var(--moss-space-xl) + 3.875rem)}p{margin-block:0 var(--moss-space-md);margin-inline:0;max-inline-size:var(--moss-content-width)}p + p{margin-block-start:var(--moss-space-md)}ul,ol{margin:var(--moss-space-md) 0;padding-left:var(--moss-space-lg)}li{margin-bottom:var(--moss-space-xs);line-height:1.6}li >ul,li >ol{margin-top:var(--moss-space-xs);margin-bottom:var(--moss-space-xs)}ul{list-style-type:disc}ul ul{list-style-type:circle}ul ul ul{list-style-type:square}ol{list-style-type:decimal}ol ol{list-style-type:lower-latin}ol ol ol{list-style-type:lower-roman}li:has(>input[type="checkbox"]),li:has(>p:first-child >input[type="checkbox"]:first-child){list-style:none;margin-inline-start:-1.25em}li >input[type="checkbox"],li >p >input[type="checkbox"]{margin-inline-end:0.4em;vertical-align:baseline}a{color:var(--moss-color-accent);text-decoration:none}a:where(:not(.moss-btn)):hover,a:where(:not(.moss-btn)):focus{color:var(--moss-color-accent-hover)}.container{max-inline-size:var(--moss-site-max-width);margin:0 auto;padding:0 var(--moss-container-padding)}header{padding-top:var(--moss-space-lg);padding-bottom:var(--moss-space-sm)}main{background:transparent;padding:0;flex:1}main >article.container{max-inline-size:var(--moss-content-width);margin:0 auto;padding:0 var(--moss-container-padding);line-break:strict;word-break:normal;text-autospace:normal}body[data-content-width="wide"]{--moss-content-width:calc(50 * var(--moss-reading-size))}body[data-content-width="full"]{--moss-content-width:var(--moss-site-max-width)}main >.moss-comments{max-inline-size:var(--moss-content-width);padding:0 var(--moss-container-padding);margin:0 auto;text-autospace:normal}main.has-sidebar{display:flex;flex-wrap:wrap;gap:var(--moss-space-lg);max-inline-size:var(--moss-site-max-width,1400px);margin:0 auto;padding:0 var(--moss-container-padding)}main.has-sidebar >article.container{flex:1;max-inline-size:var(--moss-content-width-sidebar);margin:0;padding:0}main.has-sidebar >.moss-comments{flex-basis:100%;max-inline-size:var(--moss-content-width-sidebar);margin:0;padding:0;order:3}main.has-sidebar >.latest-sidebar{width:clamp(200px,22vw,320px);flex-shrink:0;position:sticky;top:var(--moss-space-lg);align-self:flex-start}.latest-sidebar .sidebar-more{display:inline-block;margin-top:var(--moss-space-sm);font-size:var(--moss-size-sm);color:var(--moss-color-muted);text-decoration:none}.latest-sidebar .sidebar-more:hover{color:var(--moss-color-text)}footer{inline-size:100%;flex-shrink:0;margin-block-start:var(--moss-space-2xl)}footer.container{max-inline-size:var(--moss-content-width);margin-block:5rem 0;margin-inline:auto;padding:0 var(--moss-container-padding) var(--moss-space-2xl);color:var(--moss-color-muted);text-align:left}footer.container::before{content:"";display:block;border-block-start:1px solid var(--moss-border-light);margin-block-end:var(--moss-space-md)}footer.container >:first-child{margin-top:0}footer.container >:last-child{margin-bottom:0}footer.container:not(:has(a,p,form,.moss-subscribe-form,.moss-grid)){padding-bottom:0}footer.container:has(>.moss-subscribe){display:flex;flex-wrap:wrap;align-items:baseline;justify-content:flex-start;gap:0 var(--moss-space-md)}footer.container:has(>.moss-subscribe)::before{flex-basis:100%}.moss-subscribe-form[data-moss-hosted="true"]{position:relative;display:flex;gap:0.75rem;align-items:center;min-height:2.5rem;--moss-ease-subscribe:cubic-bezier(0.22,1,0.36,1)}.moss-subscribe-form[data-moss-hosted="true"] .moss-input{transition:border-color 0.2s ease,opacity 0.35s var(--moss-ease-subscribe),transform 0.35s var(--moss-ease-subscribe)}.moss-btn-slot{position:relative;flex:0 0 auto;display:inline-flex;align-items:center;justify-content:center}.moss-btn__label{display:inline-block}.moss-btn__spinner,.moss-btn__check{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;pointer-events:none;opacity:0}.moss-btn__spinner::after{content:"";width:0.875em;height:0.875em;border:2px solid currentColor;border-top-color:transparent;border-radius:50%;animation:moss-btn-spin 0.7s linear infinite}@keyframes moss-btn-spin{to{transform:rotate(360deg)}}@keyframes moss-subscribe-spin{to{transform:rotate(360deg)}}.moss-btn__check svg{width:1.125em;height:1.125em}.moss-btn__check svg path{stroke-dasharray:24;stroke-dashoffset:24}.moss-subscribe-form[data-moss-hosted="true"] .moss-btn-slot{min-height:2.25rem}.moss-subscribe-form[data-moss-hosted="true"] .moss-btn{position:relative;overflow:hidden;display:inline-flex;align-items:center;justify-content:center;flex:none;transition:background-color 0.3s var(--moss-ease-subscribe),color 0.3s var(--moss-ease-subscribe),width 0.45s var(--moss-ease-subscribe),height 0.45s var(--moss-ease-subscribe),padding 0.45s var(--moss-ease-subscribe),border-radius 0.45s var(--moss-ease-subscribe)}.moss-subscribe-form[data-moss-hosted="true"] .moss-btn__label{transition:opacity 0.2s var(--moss-ease-subscribe)}.moss-subscribe-form[data-moss-hosted="true"] .moss-btn__spinner{transition:opacity 0.2s var(--moss-ease-subscribe)}.moss-subscribe-form[data-moss-hosted="true"] .moss-btn__check{transform:scale(0.6);transition:opacity 0.25s var(--moss-ease-subscribe) 0.1s,transform 0.4s var(--moss-ease-subscribe) 0.1s}.moss-subscribe-form[data-moss-hosted="true"] .moss-btn__check svg path{transition:stroke-dashoffset 0.45s var(--moss-ease-subscribe) 0.2s}.moss-subscribe-form[data-moss-hosted="true"] .moss-subscribe-status{position:absolute;inset:0;display:flex;align-items:center;gap:0.6em;color:var(--moss-color-muted);font-size:0.95rem;opacity:0;transform:translateY(6px);transition:opacity 0.35s var(--moss-ease-subscribe),transform 0.35s var(--moss-ease-subscribe);pointer-events:none}.moss-subscribe-form[data-moss-hosted="true"] .moss-subscribe-status__icon{width:1.125em;height:1.125em;color:var(--moss-color-accent);flex-shrink:0}.moss-subscribe-form[data-state="loading"] .moss-btn{cursor:wait}.moss-subscribe-form[data-state="loading"] .moss-btn__label{opacity:0}.moss-subscribe-form[data-state="loading"] .moss-btn__spinner{opacity:1}.moss-subscribe-form[data-state="loading"] .moss-input{pointer-events:none;opacity:0.7}.moss-subscribe-form[data-state="success"] .moss-input{opacity:0;transform:translateY(-4px);pointer-events:none}.moss-subscribe-form[data-state="success"] .moss-btn-slot .moss-btn{position:absolute;left:50%;top:50%;right:auto;transform:translate(-50%,-50%);width:2.25rem;height:2.25rem;background:var(--moss-color-accent);color:var(--moss-color-bg);padding:0;border-radius:50%;cursor:pointer}.moss-subscribe-form[data-state="success"] .moss-btn__label{opacity:0}.moss-subscribe-form[data-state="success"] .moss-btn__spinner{opacity:0}.moss-subscribe-form[data-state="success"] .moss-btn__check{opacity:1;transform:scale(1)}.moss-subscribe-form[data-state="success"] .moss-btn__check svg path{stroke-dashoffset:0}.moss-subscribe-form[data-state="success"] .moss-subscribe-status{opacity:1;transform:translateY(0);transition-delay:0.35s}.moss-subscribe-form[data-state="error"] .moss-btn__label{opacity:1}.moss-subscribe-form[data-state="error"] .moss-btn__spinner{opacity:0}.moss-subscribe-form[data-state="error"] .moss-subscribe-status{opacity:1;transform:translateY(0);color:var(--moss-error,#c85450)}.moss-subscribe-form[data-state="error"] .moss-subscribe-status__icon{color:var(--moss-error,#c85450)}.moss-subscribe-form[data-position="apply"][data-state="success"] .moss-btn-slot .moss-btn{position:static;width:auto;height:auto;padding:.85rem 1rem;border-radius:9px;background:var(--moss-color-text);color:var(--moss-color-bg);cursor:default}.moss-subscribe-form[data-position="apply"][data-state="success"] .moss-btn__label{opacity:1}.moss-subscribe-form[data-position="apply"][data-state="success"] .moss-btn__check{position:static}.moss-subscribe-form[data-position="apply"] .moss-apply-hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}@media (prefers-reduced-motion:reduce){.moss-subscribe-form[data-moss-hosted="true"] .moss-btn,.moss-subscribe-form[data-moss-hosted="true"] .moss-btn__label,.moss-subscribe-form[data-moss-hosted="true"] .moss-btn__check,.moss-subscribe-form[data-moss-hosted="true"] .moss-btn__check svg path,.moss-subscribe-form[data-moss-hosted="true"] .moss-subscribe-status{transition:none}.moss-subscribe-form[data-moss-hosted="true"] .moss-btn__check svg path{stroke-dashoffset:0}}.footer-link{color:var(--moss-color-text);text-decoration:underline;text-decoration-color:var(--moss-color-muted);text-underline-offset:3px}.footer-link:hover{color:var(--moss-color-ui-accent);text-decoration-color:var(--moss-color-ui-accent)}.footer-link.active{color:var(--moss-color-ui-accent);text-decoration-color:var(--moss-color-ui-accent)}.moss-skip-link{position:fixed;writing-mode:horizontal-tb;top:-100%;left:0;z-index:1000;padding:var(--moss-space-sm) var(--moss-space-md);background:var(--moss-color-bg);color:var(--moss-color-text);border:1px solid var(--moss-color-ui-accent);border-radius:0 0 4px 0;font-family:var(--moss-font-body);font-size:var(--moss-size-sm);text-decoration:none}.moss-skip-link:focus{top:0}.moss-colophon{text-align:center;padding:var(--moss-space-lg) 0 var(--moss-space-xl)}.moss-colophon a{color:var(--moss-color-muted);text-decoration:none;font-size:0.75rem;letter-spacing:0.01em;display:inline-block;position:relative;--moss-colophon-lead:0.02em;padding:0.5rem 0.5rem calc(0.5rem + 1.15em + var(--moss-colophon-lead))}.moss-colophon a:lang(zh){--moss-colophon-lead:0.245em}.moss-colophon-icon{--moss-mark-paint:currentColor;--moss-mark-drop-paint:currentColor;--moss-mark-fade:240ms}.moss-colophon a:is(:hover,:focus-visible) .moss-colophon-icon{--moss-mark-paint:var(--moss-mark-ink);--moss-mark-drop-paint:var(--moss-mark-drop)}.moss-colophon-icon svg{width:1.25rem;height:1.25rem}.moss-colophon-label{position:absolute;inset-block-start:calc(100% - 0.5rem - 1.15em);inset-inline-start:50%;line-height:1.15;white-space:nowrap;translate:-50% 0.55em;opacity:0;transition:opacity 240ms cubic-bezier(0.37,0,0.63,1),translate 1ms linear 240ms}@media (hover:hover){.moss-colophon a:hover .moss-colophon-label{translate:-50% 0;opacity:1;transition:opacity 360ms cubic-bezier(0.37,0,0.63,1) 300ms,translate 560ms cubic-bezier(0.22,0.61,0.36,1) 300ms}}.moss-colophon a:focus-visible .moss-colophon-label{translate:-50% 0;opacity:1;transition:opacity 360ms cubic-bezier(0.37,0,0.63,1),translate 560ms cubic-bezier(0.22,0.61,0.36,1)}@media (prefers-reduced-motion:reduce){.moss-colophon-label,.moss-colophon a:hover .moss-colophon-label,.moss-colophon a:focus-visible .moss-colophon-label{translate:-50% 0;transition:opacity 200ms linear}}.main-nav{max-inline-size:var(--moss-nav-width,var(--moss-content-width));margin:0 auto var(--moss-space-sm) auto}.main-nav a{color:var(--moss-color-text-secondary);border-bottom:none;text-decoration:none;white-space:nowrap}.main-nav a:hover{color:var(--moss-color-ui-accent)}.main-nav a.active{color:var(--moss-color-ui-accent);border-bottom:2px solid var(--moss-color-ui-accent);padding-bottom:2px}.main-nav a.active:hover{color:var(--moss-color-accent-hover);border-bottom-color:var(--moss-color-accent-hover)}.nav-content{border-bottom:1px solid var(--moss-border-light);padding-bottom:var(--moss-space-md);display:flex;flex-wrap:wrap;align-items:center;gap:var(--moss-space-md);position:relative}header:has(+ .moss-hero) .nav-content{border-bottom:none}header:has(+ .moss-hero){padding-bottom:0}header:has(+ .moss-hero) .main-nav{margin-bottom:0}.nav-left{min-width:0;display:flex;flex-wrap:nowrap;align-items:center;overflow:clip;flex:999 1 auto}.nav-right{display:flex;align-items:flex-end;flex-wrap:nowrap;flex:1 1 auto;min-width:0;justify-content:space-between;gap:var(--moss-space-xs) clamp(var(--moss-space-md),4vw,var(--moss-space-lg))}.site-name{flex-shrink:0;color:var(--moss-color-text);font-size:clamp(0.875rem,1.5vw + 0.625rem,var(--moss-size-lg));font-weight:500;text-decoration:none;word-break:break-word}.site-logo{height:1em;width:auto;vertical-align:middle;margin:0 0.3em 0 0;position:relative;top:-0.1em}.site-name:hover{color:var(--moss-color-ui-accent)}.breadcrumb-separator{flex-shrink:0;margin:0 0.35em;color:var(--moss-border-medium);font-weight:300}.breadcrumb-segment{color:var(--moss-color-muted);text-decoration:none;font-size:clamp(0.875rem,1.5vw + 0.625rem,var(--moss-size-lg));font-weight:300;min-width:1.4em;flex-shrink:5}.breadcrumb-label{display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.breadcrumb-segment:last-child{flex-shrink:1;min-width:5em}.breadcrumb-segment:hover{color:var(--moss-color-text)}.breadcrumb-current{color:var(--moss-color-text);font-weight:500}@media (max-width:32rem){.breadcrumb-segment:last-child{min-width:3em}.breadcrumb-separator{margin:0 0.25em}}.nav-left[data-fold-managed] .breadcrumb-segment:not(:last-child){flex-shrink:0;min-width:0}.nav-left [hidden]{display:none}[data-tooltip]{position:relative}[data-tooltip]::after{content:attr(data-tooltip);position:absolute;top:100%;border-top:6px solid transparent;background-clip:padding-box;inset-inline-start:0;z-index:200;padding:4px 8px;border-radius:4px;background:var(--moss-color-text);color:var(--moss-color-bg);font-family:var(--moss-font-body);font-size:11px;font-weight:500;line-height:1.5;width:max-content;max-width:var(--moss-hint-max-w,calc(100vw - 24px));white-space:normal;pointer-events:none;opacity:0;transition:opacity 0.12s;filter:drop-shadow(0 2px 4px rgba(0,0,0,0.15))}@media (any-hover:hover){[data-tooltip]:hover::after{opacity:1;pointer-events:auto}}[data-tooltip]:focus-visible::after{opacity:1;pointer-events:auto}[data-tooltip][data-hint-suppressed]::after{opacity:0}[data-hint-placed][data-tooltip]::after{inset-inline-start:auto;inset-inline-end:auto;left:var(--moss-hint-x,0px)}@media (any-hover:hover){.nav-left:has([data-tooltip]:hover){overflow:visible}}.nav-left:has([data-tooltip]:focus-visible){overflow:visible}.nav-links{display:flex;align-items:center;flex-wrap:wrap;gap:var(--moss-space-xs) clamp(var(--moss-space-sm),2vw,var(--moss-space-md));align-self:center}.nav-links a{font-size:clamp(0.875rem,0.6rem + 0.5vw,1rem)}.nav-icons{display:flex;align-items:center;gap:0.25rem;margin-inline-start:auto}.nav-content[data-nav-split] .nav-right{display:contents}.nav-content[data-nav-split] .nav-links{order:2;flex:1 1 100%;justify-content:space-between}.nav-content[data-nav-split] .nav-icons{order:1}.nav-theme-btn{display:inline-flex;align-items:center;justify-content:center;width:2.25rem;height:2.25rem;box-sizing:border-box;background:none;border:none;cursor:pointer;color:var(--moss-color-text-secondary);font-size:1rem;padding:0;border-radius:18px;transition:color 0.2s,background-color 0.2s;line-height:1}.nav-theme-btn:hover{color:var(--moss-color-ui-accent);background:color-mix(in srgb,var(--moss-color-ui-accent) 8%,var(--moss-color-surface))}.nav-theme-btn:focus{outline:none}.nav-theme-btn:focus-visible{outline:2px solid var(--moss-color-ui-accent);outline-offset:2px}.theme-toggle-icon{display:block;width:1.25em;height:1.25em;--theme-toggle__classic--duration:500ms}.theme-toggle-icon :first-child path{transform-origin:center;transition-property:transform,d;transition-timing-function:cubic-bezier(0,0,0.15,1.25);transition-duration:calc(var(--theme-toggle__classic--duration) * 0.8)}.theme-toggle-icon g path{transform-origin:center;transition-property:opacity,transform;transition-timing-function:cubic-bezier(0,0,0.15,1.25);transition-duration:calc(var(--theme-toggle__classic--duration) * 0.8);transition-delay:calc(var(--theme-toggle__classic--duration) * 0.2)}[data-theme="dark"] .theme-toggle-icon g path{transform:scale(0.5) rotate(45deg);opacity:0;transition-delay:0s}[data-theme="dark"] .theme-toggle-icon :first-child path{d:path("M-12 5h30a1 1 0 0 0 9 13v24h-39Z");transition-delay:calc(var(--theme-toggle__classic--duration) * 0.2)}@supports not (d:path("")){[data-theme="dark"] .theme-toggle-icon :first-child path{transform:translate3d(-12px,10px,0)}}@media (prefers-reduced-motion:reduce){.theme-toggle-icon *{transition:none !important}}.nav-lang-toggle{display:flex;align-items:center;gap:0.25rem;height:2.25rem;padding-inline:0.5rem;box-sizing:border-box;font-size:0.8125rem;color:var(--moss-color-text-secondary)}.nav-lang-current{font-weight:600;color:var(--moss-color-text)}.nav-lang-link{color:var(--moss-color-text-secondary);text-decoration:none}.nav-lang-link:hover{color:var(--moss-color-ui-accent)}.nav-lang-link:focus{outline:none}.nav-lang-link:focus-visible{outline:2px solid var(--moss-color-ui-accent);outline-offset:2px}.nav-divider{width:1px;height:24px;background-color:var(--moss-border-light);margin:0 var(--moss-space-sm)}.article-header{display:flex;flex-direction:column;align-items:flex-start;margin-bottom:1.5em;gap:var(--moss-space-sm)}.article-date{color:var(--moss-color-muted);font-size:1.1em;white-space:nowrap;flex-shrink:0}.date-line{display:flex;align-items:center;margin-top:var(--moss-space-xs);margin-bottom:var(--moss-space-md)}.moss-byline{font-size:0.82em;line-height:1.75;font-weight:400;color:var(--moss-color-text-secondary);margin:0 0 var(--moss-space-md)}.date-line:has(+ .moss-byline){margin-bottom:var(--moss-space-xs)}.moss-byline a{color:inherit;text-decoration:none;border-bottom:1px solid var(--moss-border-light)}.moss-byline a:hover{border-bottom-color:currentColor}.moss-article-colophon{margin-top:var(--moss-space-xl);padding-top:var(--moss-space-sm);border-top:1px solid var(--moss-border-light);font-size:0.82em;line-height:1.8;font-weight:400;color:var(--moss-color-muted)}.moss-article-colophon a{color:inherit;text-decoration:none;border-bottom:1px solid var(--moss-border-light)}.moss-article-colophon a:hover{border-bottom-color:currentColor}.font-anchor{position:relative;margin-left:0.75em;display:flex;align-items:center}.font-trigger{background:none;border:none;color:var(--moss-color-muted);cursor:pointer;font-family:inherit;padding:4px 10px;border-radius:16px;position:absolute;left:3px;top:50%;transform:translateY(-50%);z-index:3;white-space:nowrap}.font-trigger:hover{color:var(--moss-color-text)}.font-trigger.hidden{opacity:0;pointer-events:none}.font-trigger.sliding{transition:left 280ms cubic-bezier(0.4,0,0.2,1)}.font-trigger.size-small{font-size:0.85em}.font-trigger.size-std{font-size:1em}.font-trigger.size-large{font-size:1.12em}.font-trigger.size-xlarge{font-size:1.25em}.font-pill{display:inline-flex;align-items:center;background:var(--moss-color-surface);border-radius:20px;padding:3px;gap:2px;visibility:hidden;opacity:0;transition:opacity 150ms ease,visibility 150ms ease}.font-pill.visible{visibility:visible;opacity:1}.font-pill button{background:none;border:none;color:var(--moss-color-muted);cursor:pointer;padding:4px 10px;border-radius:16px;font-family:inherit;transition:color 0.15s ease,background 0.15s ease}.font-pill button:hover{color:var(--moss-color-text)}.font-pill button.active{background:var(--moss-color-bg);color:var(--moss-color-text);box-shadow:0 1px 3px rgba(0,0,0,0.1)}.font-trigger::after,.font-pill button::after{content:'Aa'}:lang(zh) .font-trigger::after,:lang(zh) .font-pill button::after,:lang(zh-Hans) .font-trigger::after,:lang(zh-Hans) .font-pill button::after,:lang(zh-Hant) .font-trigger::after,:lang(zh-Hant) .font-pill button::after{content:'\5B57'}:lang(ja) .font-trigger::after,:lang(ja) .font-pill button::after{content:'\5B57'}:lang(ko) .font-trigger::after,:lang(ko) .font-pill button::after{content:'\AE00'}.font-pill button[data-scale="small"]{font-size:0.85em}.font-pill button[data-scale=""]{font-size:1em}.font-pill button[data-scale="large"]{font-size:1.12em}.font-pill button[data-scale="xlarge"]{font-size:1.25em}html.scale-small{--moss-reading-size:calc(var(--moss-reading-size-base) * var(--moss-reading-script-scale) * 0.89)}html.scale-large{--moss-reading-size:calc(var(--moss-reading-size-base) * var(--moss-reading-script-scale) * 1.12)}html.scale-xlarge{--moss-reading-size:calc(var(--moss-reading-size-base) * var(--moss-reading-script-scale) * 1.25)}.github-link{display:inline-flex;align-items:center;justify-content:center;padding:0.375rem;color:var(--moss-color-text-secondary);border-bottom:none;transition:all 0.2s ease}.github-link:hover{background:var(--moss-color-surface);color:var(--moss-color-ui-accent)}.github-link svg{display:block}.mobile-menu-button{display:none;background:none;border:none;padding:0.25rem;cursor:pointer;color:var(--moss-color-text-secondary);transition:all 0.2s ease}.mobile-menu-button:hover{background:var(--moss-color-surface);color:var(--moss-color-text)}.mobile-menu-button svg{display:block}.moss-nav-island{display:none;position:fixed;inset-inline:0;top:0;z-index:100;padding-top:var(--moss-space-sm);padding-inline:var(--moss-container-padding);pointer-events:none;transition:opacity 0.16s ease,transform 0.16s ease}.moss-nav-island[data-shown]{display:var(--moss-nav-island-display,block)}.moss-nav-island[data-shown="false"]{opacity:0;transform:translateY(-12px)}.moss-nav-island[data-shown="true"]{opacity:1;transform:none}.moss-nav-island[data-shown="false"] .moss-nav-island-bar,.moss-nav-island[data-shown="false"] .moss-nav-island-menu{pointer-events:none}.moss-nav-island::before{content:"";position:absolute;inset:0 0 -16px;z-index:-1;background:linear-gradient(var(--moss-color-bg) 58%,transparent)}.moss-nav-island-bar{pointer-events:auto;position:relative;max-inline-size:calc(min(var(--moss-nav-width,var(--moss-content-width)),var(--moss-site-max-width)) - 2 * var(--moss-container-padding));margin-inline:auto;display:flex;align-items:center;gap:var(--moss-space-sm);min-height:2.75rem;padding:6px 8px 6px 14px;border:1px solid var(--moss-border-light);border-radius:10px;background:var(--moss-color-bg);box-shadow:0 1px 2px rgba(0,0,0,0.04),0 8px 24px -12px rgba(0,0,0,0.28)}[data-theme="dark"] .moss-nav-island-bar{border-color:var(--moss-border-medium);box-shadow:inset 0 1px 0 rgba(255,255,255,0.06),0 8px 24px -10px rgba(0,0,0,0.7)}.moss-nav-island-trail{display:flex;align-items:baseline;min-width:0;flex:1 1 auto;overflow:clip;font-size:var(--moss-size-xs);white-space:nowrap}.moss-nav-island-trail:has([data-tooltip]:hover,[data-tooltip]:focus-visible){overflow:visible}.moss-nav-island-trail .site-name,.moss-nav-island-trail .breadcrumb-segment{flex-shrink:0;min-width:0;font-size:inherit}.moss-nav-island-trail .breadcrumb-separator{flex-shrink:0}.moss-nav-island-trail [hidden]{display:none}.moss-nav-island-trail .moss-nav-island-current{color:var(--moss-color-text);font-weight:600;flex:0 1 auto;min-width:3em}.moss-nav-island-more,.moss-breadcrumb-more{flex-shrink:0;border:0;background:none;cursor:pointer;font:inherit;line-height:1;color:var(--moss-color-muted);padding:2px 5px;border-radius:5px;letter-spacing:0.08em}.moss-breadcrumb-more{font-size:clamp(0.875rem,1.5vw + 0.625rem,var(--moss-size-lg));font-weight:300}.moss-nav-island-more:hover,.moss-nav-island-more[aria-expanded="true"],.moss-breadcrumb-more:hover,.moss-breadcrumb-more[aria-expanded="true"]{background:var(--moss-color-surface);color:var(--moss-color-text)}.moss-nav-island-actions{display:flex;align-items:center;gap:2px;flex-shrink:0}.moss-nav-island-sections{background:none;border:0;padding:6px;cursor:pointer;border-radius:6px;color:var(--moss-color-text-secondary);display:grid;place-items:center;font-size:var(--moss-size-lg)}.moss-nav-island-sections:hover,.moss-nav-island-sections[aria-expanded="true"]{background:var(--moss-color-surface);color:var(--moss-color-ui-accent)}.moss-nav-island-menu,.moss-breadcrumb-menu{position:absolute;top:calc(100% + 6px);z-index:2;min-width:12rem;max-width:min(22rem,78vw);max-height:60vh;overflow-y:auto;padding:5px;border:1px solid var(--moss-border-light);border-radius:10px;background:var(--moss-color-bg);box-shadow:0 2px 4px rgba(0,0,0,0.05),0 12px 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>p:last-of-type{margin-bottom:0}.moss-grid-card p + p{margin-top:var(--moss-space-xs)}.moss-grid-card p{margin-bottom:var(--moss-space-xs)}.moss-grid-card[data-kind="link"] a{text-decoration:none;color:inherit;transition:color 0.2s}.moss-grid-card[data-kind="link"] a:hover,.moss-grid-card[data-kind="link"] a:focus-visible{color:var(--moss-color-accent)}a.moss-grid-card:hover{color:var(--moss-color-accent);text-decoration:underline}@media (max-width:768px){.moss-grid[data-columns]{grid-template-columns:1fr}}.moss-gallery{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(200px,100%),1fr));gap:var(--moss-space-sm,1rem);margin:var(--moss-space-md,1.5rem) 0;align-items:center}.moss-gallery[data-columns]{grid-template-columns:repeat(var(--moss-gallery-columns),minmax(0,1fr))}@media (max-width:48rem){.moss-gallery[data-columns]{--moss-gallery-share:calc((100% - (var(--moss-gallery-columns) - 1) * var(--moss-space-sm,1rem)) / 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>.moss-series-nav{flex-basis:100%;max-inline-size:var(--moss-content-width-sidebar);margin:0;padding:0;order:4}.moss-series-nav-links{display:flex;justify-content:space-between;gap:var(--moss-space-sm)}.moss-series-nav-link{display:flex;align-items:baseline;gap:0.3em;width:50%;font-size:var(--moss-size-sm);line-height:1.4;color:var(--moss-color-muted);text-decoration:none}.moss-series-nav-next{justify-content:flex-end;text-align:right}.moss-series-nav-arrow{flex-shrink:0}.moss-series-nav-title{}.moss-series-nav-link:hover .moss-series-nav-title{text-decoration:underline}.moss-series-nav-link.empty{visibility:hidden}.moss-series-nav-collection-row{text-align:center;margin-top:var(--moss-space-md)}.moss-series-nav-collection{color:var(--moss-color-text-secondary);font-size:var(--moss-size-sm);text-decoration:underline}.moss-series-nav-position{display:block;margin-top:var(--moss-space-xs);color:var(--moss-color-muted);font-size:var(--moss-size-xs)}.dark .moss-series-nav{border-color:var(--moss-border-light)}@media (max-width:600px){.collection-header{flex-direction:column;align-items:flex-start;gap:var(--moss-space-xs)}}.media-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:var(--moss-space-md);margin:var(--moss-space-xl) 0}.media-item{position:relative;aspect-ratio:4/3;overflow:hidden;border-radius:6px;cursor:pointer;background:var(--moss-color-surface)}.media-item img,.media-item video{width:100%;height:100%;object-fit:cover;transition:transform 0.3s ease}.media-item:hover img,.media-item:hover video,.media-item:focus img,.media-item:focus video{transform:scale(1.03)}.media-overlay{position:absolute;bottom:0;left:0;right:0;padding:var(--moss-space-sm) var(--moss-space-md);background:linear-gradient(transparent,rgba(0,0,0,0.7));color:#fff;opacity:0;transition:opacity 0.3s ease}.media-item:hover .media-overlay,.media-item:focus .media-overlay{opacity:1}.media-title{font-size:var(--moss-size-sm);font-weight:400;margin:0}.media-item[data-type="video"]::before{content:"";position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:48px;height:48px;background:rgba(0,0,0,0.5);border-radius:50%;opacity:0.9;transition:opacity 0.2s ease;z-index:1}.media-item[data-type="video"]::after{content:"";position:absolute;top:50%;left:50%;transform:translate(-40%,-50%);border-left:16px solid #fff;border-top:10px solid transparent;border-bottom:10px solid transparent;z-index:2}.media-item[data-type="video"]:hover::before{opacity:1;background:rgba(0,0,0,0.7)}.lightbox{position:fixed;inset:0;z-index:1000;background:rgba(0,0,0,0.95);display:flex;flex-direction:column;align-items:center;justify-content:center;padding:var(--moss-space-lg)}.lightbox[hidden]{display:none}.lightbox-content{position:relative;max-width:90vw;max-height:75vh;display:flex;align-items:center;justify-content:center}.lightbox-image,.lightbox-video{max-width:100%;max-height:75vh;border-radius:4px;object-fit:contain}.lightbox-iframe{width:80vw;height:60vh;border:none;border-radius:4px;background:#fff}.moss-embed[data-type="iframe"]{display:block;width:100%;aspect-ratio:16 / 9;border:0}.lightbox-caption{text-align:center;color:#fff;margin-top:var(--moss-space-md);max-width:600px}.lightbox-title{font-size:var(--moss-size-lg);font-weight:400;margin:0 0 var(--moss-space-sm) 0}.lightbox-article-link{color:var(--moss-color-accent);text-decoration:none;font-size:var(--moss-size-sm)}.lightbox-article-link:hover{text-decoration:underline}.lightbox-close{position:absolute;top:var(--moss-space-md);right:var(--moss-space-md);background:none;border:none;color:#fff;font-size:2rem;cursor:pointer;opacity:0.7;transition:opacity 0.2s;line-height:1;padding:var(--moss-space-xs)}.lightbox-close:hover{opacity:1}.lightbox-nav{position:absolute;top:50%;transform:translateY(-50%);background:none;border:none;color:#fff;font-size:2.5rem;cursor:pointer;opacity:0.7;transition:opacity 0.2s;padding:var(--moss-space-md)}.lightbox-nav:hover{opacity:1}.lightbox-prev{left:var(--moss-space-sm)}.lightbox-next{right:var(--moss-space-sm)}.video-figure{margin:var(--moss-space-lg) 0}.video-figure video{max-width:100%;border-radius:6px}.video-figure figcaption{margin-top:var(--moss-space-sm);color:var(--moss-color-text-secondary);font-size:var(--moss-read-caption)}article figure:not(.video-figure){margin:var(--moss-space-xl) 0}article figure:not(.video-figure) img,article figure:not(.video-figure) video,article figure:not(.video-figure) picture{display:block;max-width:100%;height:auto;margin:0}article figure.moss-image[style*="width"] picture,article figure.moss-image[style*="width"] img{width:100%}article figure:not(.video-figure) >figcaption{margin-top:var(--moss-space-xs);color:var(--moss-color-text-secondary);font-size:var(--moss-read-caption);font-style:italic;text-align:center}article p:has(>video:only-child){margin:var(--moss-space-lg) 0}article p >video,article video{max-width:100%;width:100%;height:auto;aspect-ratio:16 / 9;border-radius:6px;background:var(--moss-color-surface);object-fit:contain}article p >video[height],article video[height]{height:auto !important;aspect-ratio:16 / 9}.moss-ambient-video{position:relative;display:block;width:100%}.moss-ambient-video video[data-loop],article video[data-loop]{display:block;width:100%;height:auto;aspect-ratio:16 / 9;border-radius:6px;background:var(--moss-color-surface);object-fit:cover}.moss-ambient-toggle{position:absolute;bottom:var(--moss-space-sm);right:var(--moss-space-sm);display:flex;align-items:center;justify-content:center;width:2rem;height:2rem;padding:0;border:none;border-radius:50%;background:rgba(0,0,0,0.45);color:#fff;cursor:pointer;opacity:0;transition:opacity 0.15s ease;font-size:0.75rem;line-height:1}.moss-ambient-video:hover .moss-ambient-toggle,.moss-ambient-video:focus-within .moss-ambient-toggle,.moss-ambient-toggle:focus{opacity:1}.moss-ambient-video[data-paused] .moss-ambient-toggle{opacity:1}@media (prefers-reduced-motion:reduce){video[data-loop]{animation:none !important}.moss-ambient-video .moss-ambient-toggle{opacity:1}}@media (max-width:48rem){.media-grid{grid-template-columns:repeat(2,1fr);gap:var(--moss-space-sm)}.lightbox-nav{display:none}.lightbox-iframe{width:95vw;height:50vh}}@media (max-width:30rem){.media-grid{grid-template-columns:1fr}}.latest-sidebar h3{font-size:var(--moss-size-xl);font-weight:600;margin:0 0 var(--moss-space-md) 0;color:var(--moss-color-text)}.latest-sidebar ul{list-style:none;padding:0;margin:0}.latest-sidebar li{margin-bottom:var(--moss-space-xs)}.latest-sidebar .moss-prefix-link{display:flex;gap:var(--moss-space-sm);padding:var(--moss-space-xs) 0;color:var(--moss-color-text-secondary);text-decoration:none;font-size:var(--moss-reading-size);line-height:1.4}.latest-sidebar .moss-prefix-link:hover{color:var(--moss-color-text)}.latest-sidebar .moss-prefix-link-prefix{flex-shrink:0;color:var(--moss-color-text-secondary);font-variant-numeric:tabular-nums}.latest-sidebar .moss-prefix-link-title{color:inherit}@media (max-width:64rem){main.has-sidebar{flex-direction:column}main.has-sidebar >.latest-sidebar{width:100%;max-inline-size:var(--moss-content-width);margin:0 auto;order:2;position:static}}main >article.container >.immersive-iframe-wrapper{position:relative;display:block;margin-block:var(--moss-space-lg)}main >article.container >iframe.moss-embed[data-type="iframe"]{margin-block:var(--moss-space-lg)}main >article.container >.immersive-iframe-wrapper >iframe{width:100%;height:60vh;border:none;border-radius:8px;background:var(--moss-color-surface);display:block}.immersive-fullscreen-btn{position:absolute;bottom:16px;right:16px;width:36px;height:36px;padding:0;border:none;border-radius:6px;background:rgba(0,0,0,0.4);backdrop-filter:blur(4px);-webkit-backdrop-filter:blur(4px);color:rgba(255,255,255,0.9);cursor:pointer;z-index:210;transition:background 0.15s ease,transform 0.15s ease;display:flex;align-items:center;justify-content:center;user-select:none;-webkit-tap-highlight-color:transparent;touch-action:manipulation}.immersive-fullscreen-btn:hover{background:rgba(0,0,0,0.6);transform:scale(1.08)}.immersive-fullscreen-btn:focus-visible{outline:2px solid rgba(255,255,255,0.6);outline-offset:2px}.immersive-new-window-btn{position:absolute;top:16px;left:16px;width:40px;height:40px;padding:8px;border:none;border-radius:8px;background:rgba(0,0,0,0.2);backdrop-filter:blur(4px);color:rgba(255,255,255,0.8);cursor:pointer;display:flex;align-items:center;justify-content:center;opacity:0.6;transition:background 200ms ease,transform 100ms ease,opacity 200ms ease;touch-action:manipulation;text-decoration:none}.immersive-new-window-btn:hover{background:rgba(0,0,0,0.6);transform:scale(1.08);color:rgba(255,255,255,0.95)}.immersive-new-window-btn:focus-visible{outline:2px solid rgba(255,255,255,0.6);outline-offset:2px}.immersive-new-window-btn[aria-disabled="true"]{opacity:0.3;cursor:not-allowed;pointer-events:none}.immersive-fs-active{overflow:hidden}.immersive-fs-active main >article.container >.immersive-iframe-wrapper{position:fixed;inset:0;z-index:10000;margin:0}.immersive-fs-active main >article.container >.immersive-iframe-wrapper >iframe{position:absolute;inset:0;width:100% !important;height:100% !important;border:none !important;border-radius:0 !important;margin:0 !important}.immersive-fs-active >header,.immersive-fs-active >footer,.immersive-fs-active >.moss-colophon{opacity:0;pointer-events:none;transition:opacity 200ms ease}.immersive-fs-active main >article.container >*:not(.immersive-iframe-wrapper){opacity:0;pointer-events:none;transition:opacity 200ms ease}body:not(.immersive-fs-active) >header,body:not(.immersive-fs-active) >footer,body:not(.immersive-fs-active) >.moss-colophon{transition:opacity 200ms ease 100ms}body:not(.immersive-fs-active) main >article.container >*:not(.immersive-iframe-wrapper){transition:opacity 200ms ease 100ms}.immersive-fs-active .immersive-fullscreen-btn{position:fixed;bottom:24px;right:24px;top:auto;left:auto;z-index:10001;background:rgba(128,128,128,0.3)}.immersive-fs-active .immersive-fullscreen-btn:hover{background:rgba(128,128,128,0.5)}.immersive-fs-active .immersive-new-window-btn{position:fixed;top:24px;left:24px;bottom:auto;right:auto;z-index:10001;background:rgba(128,128,128,0.3)}.immersive-fs-active .immersive-new-window-btn:hover{background:rgba(128,128,128,0.5)}@supports (hanging-punctuation:first){.immersive-fullscreen-btn{bottom:auto;right:auto;top:16px;left:16px}.immersive-fs-active .immersive-fullscreen-btn{bottom:auto;right:auto;top:24px;left:24px}.immersive-new-window-btn{top:auto;left:auto;bottom:16px;right:16px}.immersive-fs-active .immersive-new-window-btn{top:auto;left:auto;bottom:24px;right:24px}}.immersive-iframe-wrapper.fs-animating-enter{transform-origin:top left;transition:transform 300ms cubic-bezier(0.4,0,0.2,1)}.immersive-iframe-wrapper.fs-animating-exit{transform-origin:top left;transition:transform 300ms cubic-bezier(0.4,0,0.2,1)}@media (prefers-reduced-motion:reduce){.immersive-iframe-wrapper.fs-animating-enter,.immersive-iframe-wrapper.fs-animating-exit{transition:none !important}.immersive-fs-active >header,.immersive-fs-active >footer,.immersive-fs-active >.moss-colophon,.immersive-fs-active main >article.container >*:not(.immersive-iframe-wrapper){transition:none !important}.immersive-fullscreen-btn,.immersive-new-window-btn{transition:none !important}}@media print{main >article.container >.immersive-iframe-wrapper >iframe{width:100% !important;height:auto !important;min-height:400px;page-break-inside:avoid}.immersive-fullscreen-btn,.immersive-new-window-btn{display:none}.moss-colophon{display:none}}.sel-popover{display:none;position:fixed;z-index:1000;background:var(--moss-color-text);color:var(--moss-color-bg);border-radius:6px;padding:4px;box-shadow:0 2px 12px rgba(0,0,0,0.15)}.sel-popover.visible{display:flex;gap:2px}.sel-popover button{background:none;border:none;color:inherit;padding:6px 12px;cursor:pointer;font-size:0.875rem;border-radius:4px;white-space:nowrap}.sel-popover button:hover{background:rgba(255,255,255,0.15)}.sel-sep{width:1px;background:rgba(255,255,255,0.2);margin:4px 0}.pill-bar{display:flex;background:var(--moss-color-text);color:var(--moss-color-bg);border-radius:10px;padding:0;box-shadow:0 2px 16px rgba(0,0,0,0.2);overflow:hidden}.pill-bar-btn{background:none;border:none;color:inherit;padding:10px 20px;font-size:0.9rem;cursor:pointer;position:relative}.pill-bar-btn + .pill-bar-btn::before{content:'';position:absolute;left:0;top:6px;bottom:6px;width:1px;background:rgba(255,255,255,0.2)}.mobile-bar{display:none;position:fixed;bottom:calc(12px + env(safe-area-inset-bottom,0));left:50%;transform:translateX(-50%);z-index:1000}.mobile-bar.visible{display:block}.share-toast{position:fixed;bottom:2rem;left:50%;transform:translateX(-50%) translateY(8px);background:var(--moss-color-text);color:var(--moss-color-bg);padding:0.5rem 1.25rem;border-radius:6px;font-size:0.875rem;opacity:0;transition:opacity 0.25s,transform 0.25s;z-index:2000;pointer-events:none}.share-toast.visible{opacity:1;transform:translateX(-50%) translateY(0)}.share-card-overlay{position:fixed;inset:0;z-index:2000;background:rgba(0,0,0,0.7);display:flex;align-items:center;justify-content:center}.share-lightbox-inner{display:flex;flex-direction:column;align-items:center;gap:16px}.share-card-overlay img{max-width:90vw;max-height:70vh;border-radius:8px;box-shadow:0 4px 24px rgba(0,0,0,0.3)}.moss-preview-popup{position:absolute;z-index:1000;max-width:360px;padding:var(--moss-space-sm) var(--moss-space-md);background:var(--moss-color-bg);border:1px solid var(--moss-color-surface);border-radius:6px;box-shadow:0 4px 16px rgba(0,0,0,0.12);font-size:0.875rem;line-height:1.5;opacity:0;transition:opacity 0.15s ease;pointer-events:none;cursor:pointer}.moss-preview-popup.visible{opacity:1;pointer-events:auto}.moss-preview-title{display:block;font-weight:600;color:var(--moss-color-text);margin-bottom:0.25rem}.moss-preview-desc{color:var(--moss-color-muted);margin:0 0 0.25rem;font-size:0.8125rem}.moss-preview-text{color:var(--moss-color-text);margin:0}@media (hover:none){.moss-preview-popup{display:none}}body:not([data-moss-preview]) .moss-service-inactive{display:none}body[data-moss-preview] .moss-service-inactive{pointer-events:none;cursor:not-allowed}}@layer base{.footer-left p{margin:0;font-size:var(--moss-size-xs);color:var(--moss-color-muted)}.footer-left a{color:inherit;text-decoration:underline;text-decoration-color:var(--moss-border-light);text-underline-offset:0.2em}.footer-left a:hover{text-decoration-color:currentColor}}@layer shortcodes{.moss-mark{--moss-mark-ink:#000;--moss-mark-drop:#6b8e4e;color:var(--moss-mark-paint,var(--moss-mark-ink));transition:color var(--moss-mark-fade,0s) cubic-bezier(0.37,0,0.63,1)}.moss-mark [fill="#6b8e4e"]{fill:var(--moss-mark-drop-paint,var(--moss-mark-drop));transition:fill var(--moss-mark-fade,0s) cubic-bezier(0.37,0,0.63,1)}.moss-mark svg{display:block}[data-theme="dark"] .moss-mark{--moss-mark-ink:#ccc;--moss-mark-drop:#8aba6a}.moss-wordmark:lang(zh){font-family:'Moss Long Cang',var(--moss-font-body);font-weight:400}}@layer shortcodes{html:has(body[data-typesetting="vertical"]){background:var(--moss-color-bg)}body[data-typesetting="vertical"]{writing-mode:vertical-rl;text-orientation:mixed;overflow-x:auto;overflow-y:hidden;height:min(38em,100svh - 4rem);min-height:0;--vertical-top-pad:1.5em;--moss-content-width:100%}body[data-typesetting="vertical"]::-webkit-scrollbar{height:8px}body[data-typesetting="vertical"]::-webkit-scrollbar-track{background:var(--moss-color-bg)}body[data-typesetting="vertical"]::-webkit-scrollbar-thumb{background:var(--moss-border-medium);border-radius:4px}body[data-typesetting="vertical"] main{flex:0 0 auto;padding-top:var(--moss-space-lg)}body[data-typesetting="vertical"] article{line-height:1.8;letter-spacing:0.05em}body[data-typesetting="vertical"] .nav-content{flex-direction:row;justify-content:space-between;align-items:center;border-bottom:none;border-left:1px solid var(--moss-border-light);padding-bottom:0;padding-left:var(--moss-space-md);gap:var(--moss-space-sm)}body[data-typesetting="vertical"] .nav-right{flex:0}body[data-typesetting="vertical"] .nav-links{flex-direction:column}body[data-typesetting="vertical"] .main-nav a{white-space:normal}body[data-typesetting="vertical"] .main-nav a.active{border-bottom:none;border-left:2px solid var(--moss-color-ui-accent);padding-bottom:0;padding-left:2px}body[data-typesetting="vertical"] .mobile-menu-button{display:none}body[data-typesetting="vertical"] .nav-left{overflow:visible}body[data-typesetting="vertical"] .breadcrumb-segment,body[data-typesetting="vertical"] .breadcrumb-segment:last-child{flex-shrink:0;min-width:0;overflow:visible;text-overflow:clip}body[data-typesetting="vertical"] .breadcrumb-label{overflow:visible;text-overflow:clip;white-space:normal}body[data-typesetting="vertical"] .breadcrumb-separator{color:transparent;margin:0.5em 0}body[data-typesetting="vertical"] .breadcrumb-separator::before{content:"\00B7";color:var(--moss-color-muted)}body[data-typesetting="vertical"] .moss-colophon{text-align:start;padding:var(--moss-space-lg) 0}body[data-typesetting="vertical"] .moss-colophon a{padding-block-end:0.5rem;padding-inline-end:calc(0.5rem + 1.15em + var(--moss-colophon-lead))}body[data-typesetting="vertical"] .moss-colophon-label{inset-block-start:50%;inset-inline-start:calc(100% - 0.5rem - 1.15em)}body[data-typesetting="vertical"] figure figcaption,body[data-typesetting="vertical"] pre,body[data-typesetting="vertical"] pre code{writing-mode:horizontal-tb}[data-typesetting="vertical"] .moss-cards[data-layout="grid"]{display:flex;flex-direction:column;gap:var(--moss-space-lg)}[data-typesetting="vertical"] .moss-cards[data-layout="grid"] .moss-card{inline-size:13rem;flex:0 0 auto}[data-typesetting="vertical"] .moss-cards[data-layout="grid"] .moss-card-cover{width:auto;inline-size:100%;aspect-ratio:3 / 4}[data-typesetting="vertical"] .moss-cards[data-layout="grid"] .moss-card-content{align-items:flex-start;justify-content:flex-start}[data-typesetting="vertical"] .moss-cards[data-layout="grid"] .moss-card-meta,[data-typesetting="vertical"] .moss-cards[data-layout="grid"] .moss-card-kicker{letter-spacing:0.05em;text-orientation:upright}[data-typesetting="vertical"] .moss-cards[data-layout="grid"] .moss-card-title{line-height:1.7}[data-typesetting="vertical"] .moss-cards[data-layout="list"]{display:block;inline-size:min(80vh,40rem)}[data-typesetting="vertical"] .moss-cards[data-layout="list"] .moss-card{display:flex;flex-direction:row;gap:var(--moss-space-md);padding-block:1.25rem;padding-inline:0;border-block-end:1px solid var(--moss-border-light);inline-size:min(80vh,40rem)}[data-typesetting="vertical"] .moss-cards[data-layout="list"] .moss-card:last-child{border-block-end:none}[data-typesetting="vertical"] .moss-cards[data-layout="list"] .moss-card-body{display:flex;flex-direction:column;gap:0.75rem}[data-typesetting="vertical"] .moss-cards[data-layout="list"] .moss-card-head{display:flex;flex-direction:column;align-items:flex-start;flex:0 0 auto;gap:0.5rem}[data-typesetting="vertical"] .moss-cards[data-layout="list"] .moss-card-meta,[data-typesetting="vertical"] .moss-cards[data-layout="list"] .moss-card-kicker{letter-spacing:0.02em;text-orientation:upright;margin-bottom:0}[data-typesetting="vertical"] .moss-cards[data-layout="list"] .moss-card-title{line-height:1.8;margin:0;white-space:normal;text-overflow:clip;overflow:visible}[data-typesetting="vertical"] .moss-cards[data-layout="list"] .moss-card-description{line-height:1.9;flex:1 1 auto;-webkit-line-clamp:unset;-webkit-box-orient:unset;overflow:visible}[data-typesetting="vertical"] .moss-cards[data-layout="list"] .moss-card-cover{flex:0 0 140px;width:140px;height:auto;aspect-ratio:4 / 3}[data-typesetting="vertical"] .moss-cards-minimal-year-group{display:flex;flex-direction:column;gap:0.6rem;align-items:flex-start;margin:0}[data-typesetting="vertical"] .moss-cards[data-layout="minimal"] .moss-card{display:flex;flex-direction:row;align-items:center;gap:1rem;padding:0}[data-typesetting="vertical"] .moss-cards[data-layout="minimal"] .moss-card-meta{text-orientation:upright;letter-spacing:0.05em}[data-typesetting="vertical"] .moss-cards[data-layout="minimal"] .moss-card-title{line-height:1.9}}