:root{--jx-paper:#eceee6;--jx-ink:#1f231d;--jx-rust:#b85c1e;--jx-rust-d:#94450f;--jx-tie:#6b5a46;--jx-line:#cfd3c6;--jx-sub:#f7f8f3;--jx-mute:#4f554a;--jx-cjk:"Microsoft YaHei","PingFang SC","Noto Sans SC",sans-serif;--jx-lat:"Felix Titling","Perpetua Titling MT",Georgia,serif;--jx-gut:16px}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;text-size-adjust:100%}
body{margin:0;background:var(--jx-paper);color:var(--jx-ink);font-family:var(--jx-cjk);font-size:16px;line-height:1.8}
img{max-width:100%;height:auto;display:block}
a{color:var(--jx-ink);text-decoration-color:var(--jx-rust);text-decoration-thickness:2px;text-underline-offset:4px}
a:hover{color:var(--jx-rust-d)}
:focus-visible{outline:3px solid var(--jx-rust);outline-offset:2px}
code{font-family:Consolas,"Courier New",monospace;font-size:.92em;background:var(--jx-sub);border:1px solid var(--jx-line);border-radius:8px;padding:.05em .4em;word-break:break-all}
.jx-skip{position:absolute;left:-9999px;top:0;background:var(--jx-ink);color:var(--jx-paper);padding:12px 16px;z-index:10}
.jx-skip:focus{left:var(--jx-gut)}
.jx-top{border-bottom:1px solid var(--jx-line);background:var(--jx-paper)}
.jx-top-in,.jx-foot-in,.jx-main{max-width:1180px;margin:0 auto;padding-left:var(--jx-gut);padding-right:var(--jx-gut)}
.jx-top-in{display:flex;align-items:center;justify-content:space-between;gap:12px;min-height:60px}
.jx-brand{display:inline-flex;align-items:center;min-height:44px;color:var(--jx-ink);text-decoration:none}
.jx-mark{display:block;width:118px;height:30px}
.jx-rail ul{list-style:none;margin:0;padding:0;display:flex;gap:2px}
.jx-rail a{display:inline-flex;align-items:center;justify-content:center;min-height:44px;min-width:48px;padding:0 12px;text-decoration:none;font-size:15px;border-bottom:3px solid transparent}
.jx-rail a[aria-current="page"]{border-bottom-color:var(--jx-rust)}
.jx-main{padding-top:16px;padding-bottom:56px}
.jx-h1{font-size:31px;line-height:1.35;margin:0 0 8px;font-weight:700;line-break:strict;letter-spacing:0}
.jx-yard-wrap{margin-bottom:28px}
.jx-yard-head{display:flex;flex-wrap:wrap;align-items:baseline;gap:4px 22px;margin-bottom:14px}
.jx-yard-head .jx-h1{max-width:21em}
.jx-yard-lead{color:var(--jx-mute);font-size:15px;max-width:30em;line-height:1.6}
.jx-yard{display:grid;grid-template-columns:1fr 1fr;position:relative}
.jx-branch{position:relative;padding:0 22px;display:flex;flex-direction:column;align-items:center;gap:12px}
.jx-branch::before{content:"";position:absolute;top:0;bottom:0;left:calc(50% - 30px);width:60px;z-index:0;background:linear-gradient(90deg,transparent 15px,var(--jx-ink) 15px 19px,transparent 19px 41px,var(--jx-ink) 41px 45px,transparent 45px),repeating-linear-gradient(180deg,transparent 0 9px,var(--jx-tie) 9px 14px);opacity:.55}
.jx-branch>*{position:relative;z-index:1}
.jx-term{width:100%;max-width:430px;background:var(--jx-sub);border:2px solid var(--jx-ink);padding:8px 14px 6px}
.jx-term-t{font-size:13px;color:var(--jx-mute);font-weight:700;margin-bottom:4px}
.jx-term-list{list-style:none;margin:0;padding:0}
.jx-term-list li{display:flex;gap:8px;align-items:baseline;font-size:14px;line-height:1.5;padding:2px 0}
.jx-mk{flex:none;font-size:13px;line-height:1;padding:4px 6px;border-radius:8px;border:1.5px solid var(--jx-ink);font-weight:700}
.jx-go .jx-mk{background:var(--jx-ink);color:var(--jx-paper)}
.jx-no .jx-mk{color:var(--jx-rust-d);border-color:var(--jx-rust)}
.jx-no{color:var(--jx-mute)}
.jx-signal{display:flex;flex-direction:column;align-items:center}
.jx-signal-post{order:2;width:4px;height:12px;background:var(--jx-ink)}
.jx-signal-plate{order:1;display:inline-block;font-weight:700;font-size:17px;padding:5px 16px;background:var(--jx-paper);border:3px solid var(--jx-ink)}
.jx-branch-l .jx-signal-plate{border-color:var(--jx-rust);color:var(--jx-ink)}
.jx-rnote{width:100%;max-width:430px;font-size:14px;line-height:1.6;background:var(--jx-paper);border:1px dashed var(--jx-tie);padding:10px 14px}
.jx-card{width:100%;max-width:430px;background:var(--jx-sub);border:2px solid var(--jx-ink);border-top:10px solid var(--jx-tie);padding:12px 14px 12px;font-size:14px;line-height:1.6}
.jx-card-row{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.jx-card-k{font-size:13px;color:var(--jx-mute);font-weight:700}
.jx-code{font-family:Consolas,"Courier New",monospace;font-size:24px;font-weight:700;letter-spacing:.06em;background:var(--jx-paper);border:1px solid var(--jx-line);border-radius:8px;padding:2px 10px;color:var(--jx-ink);word-break:normal}
.jx-copy{min-height:44px;min-width:72px;padding:0 16px;border:0;border-radius:8px;background:var(--jx-rust-d);color:#fff;font:inherit;font-size:15px;font-weight:700;cursor:pointer}
.jx-copy:hover{background:var(--jx-ink)}
.jx-copy.is-done{background:var(--jx-ink)}
.jx-card-gain{margin-top:8px;font-weight:700;font-size:15px}
.jx-star{color:var(--jx-rust-d);font-weight:700;padding:0 1px}
.jx-card-fn{font-size:13px;color:var(--jx-mute);line-height:1.55;margin-top:2px}
.jx-card-go{display:flex;align-items:center;justify-content:center;min-height:46px;margin:10px 0 6px;padding:6px 14px;border-radius:8px;background:var(--jx-ink);color:var(--jx-paper);text-decoration:none;font-weight:700;text-align:center}
.jx-card-go:hover{background:var(--jx-rust-d);color:#fff}
.jx-card-disc,.jx-card-note{font-size:13.5px;color:var(--jx-mute);margin-top:4px;line-height:1.6}
.jx-tracks{grid-column:1 / -1;position:relative;height:148px}
.jx-tracks>span{position:absolute;display:block}
.jx-ties{left:calc(50% - 28px);width:56px;top:96px;bottom:0;background:repeating-linear-gradient(180deg,transparent 0 7px,var(--jx-tie) 7px 12px)}
.jx-m{top:96px;bottom:0;width:4px;background:var(--jx-ink)}
.jx-m1{left:calc(50% - 15px)}
.jx-m2{left:calc(50% + 11px)}
.jx-c{border:0 solid var(--jx-ink)}
.jx-c-a1{left:calc(25% - 15px);top:0;width:calc(12.5% + 15px);height:63px;border-left-width:4px;border-bottom-width:4px;border-bottom-left-radius:100% 100%}
.jx-c-a2{left:calc(25% + 11px);top:0;width:calc(12.5% - 11px);height:37px;border-left-width:4px;border-bottom-width:4px;border-bottom-left-radius:100% 100%}
.jx-c-a3{left:37.5%;top:33px;width:calc(12.5% + 15px);height:63px;border-top-width:4px;border-right-width:4px;border-top-right-radius:100% 100%}
.jx-c-a4{left:37.5%;top:59px;width:calc(12.5% - 11px);height:37px;border-top-width:4px;border-right-width:4px;border-top-right-radius:100% 100%}
.jx-c-b1{left:62.5%;top:0;width:calc(12.5% + 15px);height:63px;border-right-width:4px;border-bottom-width:4px;border-bottom-right-radius:100% 100%}
.jx-c-b2{left:62.5%;top:0;width:calc(12.5% - 11px);height:37px;border-right-width:4px;border-bottom-width:4px;border-bottom-right-radius:100% 100%}
.jx-c-b3{left:calc(50% - 15px);top:33px;width:calc(12.5% + 15px);height:63px;border-top-width:4px;border-left-width:4px;border-top-left-radius:100% 100%}
.jx-c-b4{left:calc(50% + 11px);top:59px;width:calc(12.5% - 11px);height:37px;border-top-width:4px;border-left-width:4px;border-top-left-radius:100% 100%}
.jx-lever{left:calc(50% + 40px);top:92px;width:44px;height:52px}
.jx-lever-base{position:absolute;left:8px;bottom:0;width:28px;height:14px;background:var(--jx-tie)}
.jx-lever-arm{position:absolute;left:20px;bottom:8px;width:5px;height:42px;background:var(--jx-rust);transform-origin:50% 100%;transform:rotate(-30deg)}
.jx-lever-arm::after{content:"";position:absolute;left:-5px;top:-7px;width:15px;height:15px;border-radius:50%;background:var(--jx-rust)}
.jx-pick{position:relative;margin:2px auto 0;max-width:760px;background:var(--jx-sub);border-left:6px solid var(--jx-rust);padding:6px 18px 10px;display:flex;flex-wrap:wrap;align-items:center;gap:0 14px}
.jx-pick-why{flex-basis:100%}
.jx-pick-label{font-size:13px;color:var(--jx-mute);font-weight:700}
.jx-pick-link{display:inline-block;font-size:18px;font-weight:700;line-height:1.45;padding:4px 0;min-height:44px}
.jx-pick-why{font-size:14px;color:var(--jx-mute);line-height:1.65}
.jx-prose{max-width:38em}
.jx-prose p,.jx-prose li{line-height:1.85}
.jx-prose ul,.jx-prose ol{padding-left:1.4em}
.jx-prose li{margin:4px 0}
.jx-prose strong{font-weight:700;background:linear-gradient(transparent 62%,rgba(184,92,30,.22) 62%)}
.jx-home-body{margin:0 auto}
.jx-h2{font-size:22px;line-height:1.45;margin:44px 0 12px;padding-top:16px;line-break:strict;background:repeating-linear-gradient(90deg,var(--jx-tie) 0 12px,transparent 12px 20px) top left / 132px 5px no-repeat}
.jx-hs{display:inline}
.jx-h3{font-size:18px;line-height:1.5;margin:28px 0 8px}
.jx-crumb{display:flex;flex-wrap:wrap;align-items:center;font-size:14px;color:var(--jx-mute);margin-bottom:6px}
.jx-crumb a{display:inline-flex;align-items:center;min-height:44px;padding:0 2px}
.jx-crumb-sep{padding:0 8px;color:var(--jx-line)}
.jx-byline{display:flex;flex-wrap:wrap;gap:4px 18px;font-size:14px;color:var(--jx-mute);margin-bottom:14px}
.jx-byline a{display:inline-flex;align-items:center;min-height:44px}
.jx-h1-doc{max-width:24em}
.jx-notice{background:#fff;border:2px solid var(--jx-rust);padding:12px 16px;margin:6px 0 18px;max-width:52em;font-size:14.5px;line-height:1.7;position:relative}
.jx-notice::before,.jx-notice::after{content:"";position:absolute;bottom:-14px;width:4px;height:12px;background:var(--jx-ink)}
.jx-notice::before{left:24px}
.jx-notice::after{right:24px}
.jx-notice-t{font-weight:700;font-size:15px;margin-bottom:4px}
.jx-notice-rel{margin-top:4px}
.jx-notice-src{margin-top:4px;color:var(--jx-mute);font-size:13.5px}
.jx-cover{margin:22px 0 10px;max-width:880px}
.jx-cover img{border:1px solid var(--jx-line)}
.jx-cover figcaption,.jx-shot-cap{font-size:13.5px;color:var(--jx-mute);margin-top:6px;line-height:1.6}
.jx-doc-grid{display:grid;grid-template-columns:230px minmax(0,1fr);gap:40px;align-items:start}
.jx-toc{position:sticky;top:12px;font-size:14px}
.jx-toc-sum{cursor:pointer;font-weight:700;min-height:44px;display:flex;align-items:center;list-style:none}
.jx-toc-sum::-webkit-details-marker{display:none}
.jx-toc-sum::before{content:"";width:10px;height:10px;margin-right:8px;border:2px solid var(--jx-rust);border-radius:50%}
.jx-toc-list{list-style:none;margin:0;padding:0 0 0 10px;border-left:4px double var(--jx-tie)}
.jx-toc-list a{display:flex;align-items:center;min-height:44px;padding:4px 0 4px 12px;line-height:1.45;text-decoration:none}
.jx-toc-list a:hover{text-decoration:underline}
.jx-art{min-width:0;max-width:47em}
.jx-art>p,.jx-art>ul,.jx-art>ol,.jx-art>h2,.jx-art>h3,.jx-art .jx-qa{max-width:38em}
.jx-art>p:first-child{font-size:17px}
.jx-shot{margin:22px 0}
.jx-shot img{border:1px solid var(--jx-line);background:#fff}
.jx-tw{overflow-x:auto;margin:18px 0;border:1px solid var(--jx-line);background:var(--jx-sub)}
.jx-tb{border-collapse:collapse;width:100%;min-width:620px;font-size:14.5px;line-height:1.65}
.jx-tb th,.jx-tb td{border-bottom:1px solid var(--jx-line);padding:9px 12px;text-align:left;vertical-align:top}
.jx-tb thead th{background:var(--jx-ink);color:var(--jx-paper);font-weight:700}
.jx-tb tbody th{font-weight:700;width:26%}
.jx-card-guide{margin:22px 0;max-width:460px}
.jx-faq{margin-top:12px}
.jx-qa{border-top:1px solid var(--jx-line);padding:4px 0}
.jx-q{font-size:17px;margin:14px 0 4px}
.jx-a{margin:0 0 8px}
.jx-after{margin:40px 0 0;padding-top:18px;border-top:4px double var(--jx-line);display:grid;gap:16px;max-width:52em}
.jx-tagline{display:flex;flex-wrap:wrap;gap:8px;align-items:center;font-size:14px}
.jx-tagline-k{color:var(--jx-mute)}
.jx-tag{display:inline-block;padding:3px 10px;border:1px solid var(--jx-tie);border-radius:8px;font-size:13.5px}
.jx-next-k{font-weight:700;font-size:15px}
.jx-next ul{list-style:none;margin:4px 0 0;padding:0}
.jx-next a{display:inline-flex;align-items:center;min-height:44px}
.jx-desk{max-width:860px}
.jx-desk-head{margin-bottom:6px}
.jx-shelf-count{font-size:14px;color:var(--jx-mute)}
.jx-post-list{list-style:none;margin:20px 0 0;padding:0;border-top:2px solid var(--jx-ink)}
.jx-post{padding:16px 0;border-bottom:1px solid var(--jx-line)}
.jx-post-t{font-size:19px;font-weight:700;display:inline-block;line-height:1.5;min-height:44px;padding-top:6px}
.jx-post-d{color:var(--jx-mute);font-size:15px;line-height:1.7}
.jx-post-m{font-size:13.5px;color:var(--jx-mute);margin-top:4px}
.jx-pager{display:flex;gap:18px;align-items:center;margin-top:18px}
.jx-pager a{display:inline-flex;min-height:44px;align-items:center}
.jx-rule{background:var(--jx-sub);border:1px solid var(--jx-line);border-left:5px solid var(--jx-tie);padding:4px 16px 8px;margin:16px 0}
.jx-rule-src{font-size:14px;color:var(--jx-mute)}
.jx-seek-form{margin:16px 0 8px;max-width:560px}
.jx-seek-label{display:block;font-weight:700;margin-bottom:6px}
.jx-seek-row{display:flex;gap:8px}
.jx-seek-in{flex:1;min-width:0;min-height:46px;font:inherit;font-size:16px;padding:6px 12px;border:2px solid var(--jx-ink);border-radius:8px;background:#fff;color:var(--jx-ink)}
.jx-seek-btn{min-height:46px;padding:0 18px;border:0;border-radius:8px;background:var(--jx-ink);color:var(--jx-paper);font:inherit;font-weight:700;cursor:pointer}
.jx-seek-state{color:var(--jx-mute);font-size:14.5px;margin:8px 0}
.jx-seek-out{list-style:none;margin:0;padding:0;max-width:720px}
.jx-seek-out li{border-bottom:1px solid var(--jx-line);padding:10px 0}
.jx-seek-out a{font-weight:700;display:inline-flex;min-height:44px;align-items:center}
.jx-seek-out div{font-size:14.5px;color:var(--jx-mute);line-height:1.65}
.jx-lost-ways a{display:inline-flex;min-height:44px;align-items:center}
.jx-foot{border-top:3px solid var(--jx-ink);background:var(--jx-sub);margin-top:24px}
.jx-foot-in{padding-top:26px;padding-bottom:30px;display:grid;grid-template-columns:minmax(0,1.2fr) minmax(0,1fr);gap:22px 48px}
.jx-foot-say{font-size:14px;line-height:1.7;color:var(--jx-mute);margin-top:6px;max-width:34em}
.jx-foot-links{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 16px;align-content:start}
.jx-foot-links a{display:inline-flex;align-items:center;min-height:44px;min-width:44px;font-size:14.5px}
.jx-foot-end{grid-column:1 / -1;font-size:13px;color:var(--jx-mute);border-top:1px solid var(--jx-line);padding-top:12px}
@media (max-width:1000px){
.jx-doc-grid{grid-template-columns:minmax(0,1fr);gap:8px}
.jx-toc{position:static;background:var(--jx-sub);border:1px solid var(--jx-line);padding:2px 14px 6px}
}
@media (max-width:760px){
body{font-size:15.5px}
.jx-top-in{min-height:52px}
.jx-mark{width:96px;height:25px}
.jx-rail a{padding:0 9px;font-size:15px}
.jx-main{padding-top:10px}
.jx-h1{font-size:24px;line-height:1.38}
.jx-yard-head{margin-bottom:8px}
.jx-yard-lead{display:none}
.jx-yard{grid-template-columns:1fr;gap:10px}
.jx-tracks{display:none}
.jx-branch{align-items:stretch;padding:0 0 0 34px;gap:6px}
.jx-branch::before{left:0;width:26px;background:linear-gradient(90deg,transparent 5px,var(--jx-ink) 5px 8px,transparent 8px 18px,var(--jx-ink) 18px 21px,transparent 21px),repeating-linear-gradient(180deg,transparent 0 8px,var(--jx-tie) 8px 12px);opacity:.6}
.jx-branch-r::before{opacity:.35}
.jx-branch-l{display:grid;grid-template-columns:auto 1fr;align-items:start;column-gap:10px;row-gap:6px}
.jx-branch-l .jx-signal{grid-column:1;grid-row:1}
.jx-branch-l .jx-term{grid-column:2;grid-row:1}
.jx-branch-l .jx-card{grid-column:1 / -1;grid-row:2}
.jx-branch-r{display:grid;grid-template-columns:auto 1fr;column-gap:10px;row-gap:6px;align-items:start}
.jx-branch-r .jx-signal{grid-column:1;grid-row:1}
.jx-branch-r .jx-term{grid-column:2;grid-row:1}
.jx-branch-r .jx-rnote{display:none}
.jx-signal-post{display:none}
.jx-signal-plate{font-size:14px;padding:3px 6px;writing-mode:vertical-rl;letter-spacing:2px;line-height:1.3}
.jx-term{max-width:none;padding:6px 10px 4px}
.jx-term-t{display:none}
.jx-term-list li{font-size:13.5px;line-height:1.45;padding:2px 0}
.jx-mk{font-size:13px;padding:3px 4px}
.jx-card{max-width:none;padding:8px 12px 8px;border-top-width:8px}
.jx-code{font-size:21px}
.jx-card-gain{margin-top:4px}
.jx-pick{margin-top:8px;padding:8px 14px;display:block}
.jx-pick-link{font-size:16px;min-height:44px;display:flex;align-items:center;padding:2px 0}
.jx-pick-why{display:none}
.jx-h2{font-size:20px}
.jx-hs{display:inline-block}
.jx-foot-in{grid-template-columns:minmax(0,1fr)}
}
@media (prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important;scroll-behavior:auto!important}}
@media print{.jx-top,.jx-foot,.jx-toc,.jx-skip{display:none}}