/* Shared public navigation and editorial pages. Keep readable without JavaScript. */
.jiashu-nav,.jiashu-nav *{box-sizing:border-box}
.jiashu-nav{position:fixed;inset:0 0 auto;z-index:100;display:flex;align-items:center;justify-content:space-between;gap:24px;margin:0;padding:13px clamp(20px,5vw,56px);height:66px;background:rgba(252,248,240,.92);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border-bottom:1px solid rgba(150,120,90,.14);font-family:-apple-system,BlinkMacSystemFont,'PingFang SC','Microsoft YaHei',sans-serif;line-height:1.5}
.jiashu-nav a{text-decoration:none}
.jiashu-brand{display:flex;align-items:center;gap:10px;flex-shrink:0;color:#3d352c;font-size:18px;font-weight:700;letter-spacing:3px}
.jiashu-mark{width:36px;height:36px;display:grid;place-items:center;border-radius:11px;background:linear-gradient(160deg,#d67a55,#a94e32);color:#fff;font-family:'Songti SC','STSong',SimSun,serif;font-size:20px;letter-spacing:0;box-shadow:0 5px 16px #a94e3240}
.jiashu-links{display:flex;gap:clamp(18px,2.3vw,28px);align-items:center;font-size:14px}
.jiashu-links a{white-space:nowrap;color:#817263;padding:9px 0}
.jiashu-links a:hover,.jiashu-links a[aria-current=page]{color:#a94e32}
.jiashu-links a[aria-current=page]{box-shadow:0 1px #c2603f}
.jiashu-download{flex-shrink:0;color:#fff!important;font-size:14px;padding:9px 24px;border-radius:999px;background:linear-gradient(160deg,#d67a55,#a94e32);box-shadow:0 5px 16px #a94e3240;white-space:nowrap}
.jiashu-mobile-journal,.jiashu-menu{display:none}
.jiashu-nav a:focus-visible,.jiashu-nav summary:focus-visible{outline:3px solid #a94e32;outline-offset:4px}
.guide-page,.journal-page{padding-top:66px;color:#3d352c;background:linear-gradient(180deg,#f6eedf,#f0e5d2);font-family:-apple-system,BlinkMacSystemFont,'PingFang SC','Microsoft YaHei',sans-serif;line-height:1.85}
.guide-page{--ink:#3d352c;--muted:#817263;--line:rgba(150,120,90,.2);--paper:#fbf5ec;--brand:#a94e32;margin:0}
.guide-page h1,.guide-page h2{font-family:'Noto Serif SC','Source Han Serif SC','Songti SC','STSong',SimSun,serif}
.guide-page .guide-hero{background:radial-gradient(ellipse at 85% 20%,#f3ddc64d,transparent 60%);border-bottom:1px solid var(--line)}
.guide-page .guide-hero .wrap{max-width:1060px;padding:34px 30px 50px;margin:auto}
.guide-page .crumb,.guide-page .breadcrumb{position:static;display:block;margin:0 0 34px;padding:0;background:none;border:0;font-size:13px;color:#817263;line-height:1.8}
.guide-page .crumb a,.guide-page .breadcrumb a{color:inherit;text-decoration:none}
.guide-page .guide-kicker{display:inline-flex;align-items:center;gap:9px;margin:0 0 19px;padding:5px 15px;border:1px solid #c2603f38;border-radius:999px;background:#c2603f0d;color:#a94e32;font-size:12px;letter-spacing:2px}
.guide-kicker::before{content:'';width:5px;height:5px;background:#c2603f;border-radius:50%}
.guide-page h1{font-size:clamp(32px,4.5vw,54px);font-weight:700;line-height:1.42;letter-spacing:2px;max-width:940px;margin:0 0 22px}
.guide-page .lead,.guide-page .summary{max-width:900px;font-size:18px;color:#756655;line-height:1.95;margin:0 0 24px}
.guide-page .lead strong{font-weight:600;color:#695441}
.guide-page .meta{color:#887766;font-size:12px;letter-spacing:.4px;margin:20px 0 0}
.guide-page main{max-width:1060px;margin:auto;padding:34px 30px 60px}
.guide-page main>article{min-width:0}
.guide-page section{background:rgba(255,253,248,.74);border:1px solid rgba(215,194,168,.7);border-radius:22px;padding:32px 38px;margin:0 0 24px;box-shadow:0 12px 40px #8c643c05;scroll-margin-top:90px}
.guide-page h2{font-size:27px;line-height:1.55;font-weight:600;margin:0 0 20px;letter-spacing:.6px}
.guide-page h3{font-size:17px;color:#55483b;margin:23px 0 10px}
.guide-page section p,.guide-page section li{font-size:16px;color:#665747;line-height:1.95}
.guide-page section ul,.guide-page section ol{padding-left:24px}
.guide-page section li{margin:9px 0}
.guide-page .toc{position:static;display:flex;align-items:center;gap:10px 14px;flex-wrap:wrap;padding:0 0 28px;margin:0;background:none;border:0;font-size:13px}
.guide-page .toc a{padding:7px 15px;border:1px solid #d9c6b0;border-radius:999px;background:#fffaf370;color:#796550;text-decoration:none}
.guide-page .toc a:hover{border-color:#b97253;color:#a94e32}
.guide-page .toc h2{width:100%;margin:0 0 8px;font-family:inherit;font-size:13px;color:#817263;letter-spacing:1px}
.guide-page section.summary{max-width:none}
.guide-page .guide-illustration{max-width:780px;margin:28px auto 4px}
.guide-illustration img{width:100%;height:auto;display:block;border:1px solid #e1cdb4;border-radius:16px}
.guide-illustration figcaption{margin-top:9px;text-align:center;font-size:12px;color:#887460;line-height:1.8}
.journal-page .section-with-diagram{display:block}
.journal-page .section-with-diagram .app-screen{max-width:none;width:100%;margin:24px 0 0}
.journal-page .section-with-diagram .app-screen img{width:100%;max-width:100%;box-shadow:none}
.journal-page .section-with-diagram .app-screen figcaption{text-align:center}
.journal-page .app-screen a{display:block}
.guide-page .skip,.journal-page .skip{z-index:200}
.guide-page main,.journal-page main{scroll-margin-top:86px}
.guide-page .note{background:#eddfca70;border-left:3px solid #c8906b;border-radius:0 10px 10px 0;padding:17px 22px}
.guide-page .btn{background:linear-gradient(160deg,#d67a55,#a94e32);padding:11px 25px;font-weight:500;box-shadow:0 6px 16px #a94e3220}
.guide-page footer{display:block;max-width:1000px;margin:0 auto;padding:30px 0 36px;border-top:1px solid var(--line);color:#817263;font-size:12px}
.guide-page footer nav{position:static;display:flex;flex-wrap:wrap;gap:10px 23px;padding:0;margin:0 0 20px;background:none;border:0}
.guide-page footer nav a{color:inherit;text-decoration:none}
.guide-page footer p{font-size:12px;color:#817263;overflow-wrap:anywhere}
.journal-page .toc{top:90px}.journal-page .article-section{scroll-margin-top:90px}
@media(max-width:900px){
 .jiashu-nav{gap:14px;padding:13px 20px}
 .jiashu-links{display:none}
 .jiashu-mobile-journal{display:block;margin-left:auto;white-space:nowrap;color:#a94e32;font-size:13px}
 .jiashu-menu{display:block;font-size:13px;color:#756655}
 .jiashu-menu summary{list-style:none;cursor:pointer;padding:10px 0;white-space:nowrap}
 .jiashu-menu summary::-webkit-details-marker{display:none}
 .jiashu-menu summary::after{content:'⌄';margin-left:4px}
 .jiashu-menu[open] summary::after{content:'⌃'}
 .jiashu-menu-panel{position:absolute;top:65px;left:20px;right:20px;display:grid;padding:14px;background:#fcf8f0;border:1px solid #e3d2bb;border-radius:0 0 18px 18px;box-shadow:0 16px 32px #69503820}
 .jiashu-menu-panel a{color:#665747;padding:12px 15px;border-radius:9px}
 .jiashu-menu-panel a:hover,.jiashu-menu-panel a[aria-current=page]{background:#f1e4d2;color:#a94e32}
 .jiashu-download{padding:8px 16px;font-size:13px}
 .guide-page .guide-hero .wrap{padding:27px 24px 34px}
 .guide-page main{padding:26px 24px 35px}
 .guide-page footer{margin:0 24px}
}
@media(max-width:520px){
 .jiashu-nav{gap:12px;padding:13px 16px}
 .jiashu-brand{gap:7px;font-size:16px;letter-spacing:2px}
 .jiashu-mark{width:32px;height:32px;font-size:19px}
 .jiashu-download{padding:8px 12px}
 .guide-page h1{font-size:32px;letter-spacing:1px}
 .guide-page .crumb,.guide-page .breadcrumb{margin-bottom:25px;font-size:12px}
 .guide-page .lead,.guide-page .summary{font-size:16px}
 .guide-page section{padding:25px 22px;border-radius:18px;margin-bottom:19px}
 .guide-page h2{font-size:23px}
 .guide-page section p,.guide-page section li{font-size:15px}
 .guide-page main{padding:25px 18px 35px}
 .guide-page .toc{gap:9px;font-size:12px}
 .guide-page .toc a{padding:6px 11px}
 .guide-page .note{padding:14px 16px}
}
@media(max-width:360px){.jiashu-nav{gap:8px;padding:13px 12px}.jiashu-brand{letter-spacing:0}.jiashu-download{padding:8px 10px}}