:root { --paper:#faf9f6;--surface:#fffefc;--subtle:#f1eee7;--ink:#252722;--muted:#76766d;--border:#e7e5df;--accent:#ad603b;--accentsoft:#f3e7dd;--serif:'Noto Serif SC','Songti SC','STSong','Source Han Serif SC',serif;--sans:'DM Sans',-apple-system,BlinkMacSystemFont,'PingFang SC','Microsoft YaHei',sans-serif;--fontadjust:0px;--shadow:0 9px 45px rgba(42,34,20,.055) }
:root[data-theme="dark"] { --paper:#161918;--surface:#1c201d;--subtle:#292d29;--ink:#ebe9df;--muted:#989d94;--border:#323833;--accent:#e1a681;--accentsoft:#302820;--shadow:0 12px 48px rgba(0,0,0,.17) }
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:100px}body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--sans)}button,input,a{font:inherit}button{cursor:pointer}a{color:inherit;text-decoration:none}button:focus-visible,a:focus-visible,input:focus-visible{outline:2px solid var(--accent);outline-offset:3px}::selection{background:var(--accentsoft)}
.app{min-height:100vh}.sidebar{width:252px;position:fixed;z-index:30;left:0;top:0;bottom:0;border-right:1px solid var(--border);padding:35px 23px 25px;background:var(--surface);display:flex;flex-direction:column}.brand{display:flex;align-items:center;gap:11px;margin-bottom:48px}.brandmark{width:38px;height:38px;background:var(--ink);color:var(--surface);border-radius:10px;display:grid;place-items:center;font-family:Georgia,serif;font-size:26px;line-height:1}.brandname{font-size:19px;letter-spacing:.055em;font-weight:700}.brandsub{font-size:10px;letter-spacing:.15em;margin-top:2px;color:var(--muted);font-weight:700}.side-label{font-size:11px;color:var(--muted);font-weight:700;letter-spacing:.17em;margin:0 0 14px 11px}.side-nav{display:flex;flex-direction:column;gap:5px}.nav-item{width:100%;border:0;background:none;color:var(--muted);display:flex;align-items:center;gap:12px;text-align:left;padding:13px 12px;border-radius:9px;font-size:13px;font-weight:600;transition:.2s}.nav-item svg{width:18px;height:18px}.nav-item:hover{background:var(--subtle);color:var(--ink)}.nav-item.active{background:var(--accentsoft);color:var(--accent)}.side-bottom{margin-top:auto;border-top:1px solid var(--border);padding-top:22px;color:var(--muted);font-size:12px;line-height:1.9}.side-bottom strong{color:var(--ink);font-weight:600}.shell{margin-left:252px;min-height:100vh}.topbar{height:76px;border-bottom:1px solid var(--border);display:flex;align-items:center;padding:0 clamp(24px,5.1vw,88px);justify-content:space-between;background:var(--paper);position:sticky;top:0;z-index:20;backdrop-filter:blur(12px)}.crumb{font-size:12px;color:var(--muted);display:flex;gap:10px;align-items:center;max-width:52vw;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.crumb b{color:var(--ink);font-weight:600;overflow:hidden;text-overflow:ellipsis}.top-actions{display:flex;align-items:center;gap:8px}.iconbtn{border:1px solid transparent;color:var(--muted);border-radius:8px;background:transparent;display:inline-flex;align-items:center;justify-content:center;gap:7px;padding:9px;min-width:35px;height:36px;font-size:12px}.iconbtn:hover{border-color:var(--border);background:var(--surface);color:var(--ink)}.iconbtn.active{color:var(--accent)}.iconbtn svg{width:17px;height:17px;stroke-width:1.7}.topbar .mobile-brand{display:none}
.home{max-width:1100px;padding:clamp(42px,6vw,94px) 5vw 90px;margin:auto}.eyebrow{text-transform:uppercase;letter-spacing:.19em;font-weight:700;font-size:11px;color:var(--accent);display:inline-flex;align-items:center;gap:11px}.eyebrow:before{content:'';height:1px;width:28px;background:var(--accent)}.home-title{font-family:var(--serif);font-weight:600;letter-spacing:-.055em;font-size:clamp(41px,5vw,74px);line-height:1.35;margin:20px 0 19px}.home-desc{color:var(--muted);font-family:var(--serif);line-height:2;letter-spacing:.015em;font-size:16px;max-width:640px}.home-divider{height:1px;background:var(--border);margin:62px 0 28px}.line-heading{display:flex;justify-content:space-between;align-items:center;font-size:15px;font-weight:700}.line-heading small{color:var(--muted);font-weight:400;font-size:12px}.feature{display:grid;grid-template-columns:1fr 200px;gap:30px;background:var(--surface);border:1px solid var(--border);border-radius:18px;padding:35px 38px;margin-top:20px;box-shadow:var(--shadow);transition:.2s}.feature:hover{transform:translateY(-3px);box-shadow:0 12px 40px rgba(42,34,20,.10)}.feature-label{display:inline-flex;gap:9px;align-items:center;color:var(--accent);font-size:11px;font-weight:700;letter-spacing:.08em}.feature h2{font-family:var(--serif);font-size:clamp(24px,3vw,34px);line-height:1.55;letter-spacing:-.04em;margin:12px 0 12px}.feature p{margin:0;line-height:1.9;font-size:13px;color:var(--muted)}.feature-footer{margin-top:31px;display:flex;gap:15px;flex-wrap:wrap;font-size:12px;color:var(--muted)}.feature-right{background:var(--subtle);border-radius:12px;display:flex;flex-direction:column;justify-content:center;align-items:center;text-align:center;min-height:185px}.feature-right .roman{font-family:Georgia,serif;color:var(--accent);font-size:70px;line-height:1}.feature-right small{letter-spacing:.15em;font-size:10px;margin-top:20px;color:var(--muted)}.empty-list{border:1px dashed var(--border);margin-top:20px;border-radius:14px;padding:34px;text-align:center;color:var(--muted);font-size:13px}
.article-layout{display:grid;grid-template-columns:minmax(0,760px) 205px;justify-content:center;gap:clamp(25px,4vw,90px);padding:0 clamp(24px,5vw,76px) 110px}.article-column{min-width:0}.article-head{padding:67px 0 61px;border-bottom:1px solid var(--border)}.kicker{display:flex;align-items:center;gap:11px;letter-spacing:.13em;font-size:11px;font-weight:700;color:var(--accent);text-transform:uppercase}.kicker i{height:5px;width:5px;border-radius:50%;background:var(--accent)}.article-title{font-family:var(--serif);font-size:clamp(34px,3.6vw,54px);font-weight:600;line-height:1.43;letter-spacing:-.055em;margin:24px 0 15px}.english-title{font:400 16px/1.55 Georgia,serif;color:var(--muted);margin-bottom:26px}.article-subtitle{font-family:var(--serif);font-size:16px;line-height:1.95;color:var(--muted);margin:0 0 31px}.byline{display:flex;gap:12px;align-items:center;font-size:12px;color:var(--muted);flex-wrap:wrap}.avatar{width:35px;height:35px;border-radius:50%;display:grid;place-items:center;background:var(--accentsoft);color:var(--accent);font:bold 13px Georgia,serif}.byline strong{font-size:13px;color:var(--ink);font-weight:700}.bullet{color:#bcbcb3}.article-toolbar{position:sticky;top:76px;z-index:12;padding:13px 0;display:flex;justify-content:space-between;gap:10px;align-items:center;background:var(--paper);border-bottom:1px solid var(--border);margin-bottom:38px}.toolset{display:flex;align-items:center;gap:8px}.tiny-label{color:var(--muted);font-size:11px}.switch{width:35px;height:21px;border:none;padding:3px;background:var(--border);border-radius:24px;display:inline-flex;align-items:center;justify-content:flex-start;transition:.2s}.switch.on{background:var(--accent);justify-content:flex-end}.switch-dot{width:15px;height:15px;border-radius:50%;background:white}.minibtn{font-size:11px;border:1px solid var(--border);padding:8px 10px;background:transparent;border-radius:8px;color:var(--muted)}.minibtn:hover{background:var(--surface);color:var(--ink)}.chapter{padding-top:25px;margin-bottom:65px;scroll-margin-top:170px}.chapter-prefix{display:block;font:italic 18px Georgia,serif;color:var(--accent);margin-bottom:18px}.chapter h2{font-family:var(--serif);font-size:clamp(26px,2.8vw,33px);font-weight:600;letter-spacing:-.04em;line-height:1.6;margin:0 0 33px}.read-block{position:relative;margin:0 0 20px}.block-text{font-family:var(--serif);font-size:calc(16px + var(--fontadjust));line-height:2.12;letter-spacing:.025em;margin:0;white-space:pre-wrap;overflow-wrap:anywhere}.read-block.point{padding-left:20px}.read-block.point::before{position:absolute;content:'';width:5px;height:5px;background:var(--accent);border-radius:50%;top:17px;left:4px}.read-block.quote{border-left:2px solid var(--accent);padding:7px 0 7px 21px;background:linear-gradient(90deg,var(--accentsoft),transparent 68%);margin:27px 0}.read-block.quote .block-text{font-size:calc(16px + var(--fontadjust));font-weight:600}.read-block.subheading{margin:43px 0 25px}.read-block.subheading .block-text{font-size:calc(21px + var(--fontadjust));font-weight:700;line-height:1.65}.original-toggle{border:0;background:none;color:var(--accent);font-size:10px;display:inline-flex;align-items:center;gap:4px;vertical-align:middle;padding:3px 4px;margin-left:5px;white-space:nowrap;font-family:var(--sans);font-weight:600;letter-spacing:.01em;line-height:1.4;border-radius:4px}.original-toggle:hover{background:var(--accentsoft)}.original-toggle svg{width:13px;height:13px;stroke-width:1.8}.original{display:none;margin:13px 0 8px;border:1px solid var(--border);border-left:2px solid var(--accent);background:var(--surface);padding:16px 20px;border-radius:0 9px 9px 0;animation:reveal .2s ease}.original.visible{display:block}.original-label{font:700 10px var(--sans);color:var(--accent);letter-spacing:.14em;margin-bottom:9px}.original-content{font:15px/1.85 Georgia,'Times New Roman',serif;color:var(--muted);white-space:pre-wrap;overflow-wrap:anywhere}.article-footer{border-top:1px solid var(--border);padding-top:32px;color:var(--muted);line-height:2;font-size:12px}.article-footer a{color:var(--accent);text-decoration:underline;text-underline-offset:3px}.endmark{text-align:center;font:24px Georgia,serif;color:var(--accent);padding:36px 0}.toc{position:sticky;top:167px;align-self:start;padding-top:46px;max-height:calc(100vh - 190px);overflow:auto}.toc-label{font-size:11px;font-weight:700;letter-spacing:.12em;color:var(--muted);margin:0 0 19px 13px}.toc-links{display:flex;flex-direction:column;border-left:1px solid var(--border)}.toc-link{display:block;border-left:2px solid transparent;margin-left:-1px;padding:7px 0 9px 12px;color:var(--muted);font-size:11px;line-height:1.8;transition:.2s}.toc-link:hover{color:var(--ink)}.toc-link.active{border-left-color:var(--accent);color:var(--accent);font-weight:700}.toc-bottom{margin:32px 0 0 12px;color:var(--muted);font-size:11px;line-height:1.7}.scroll-progress{position:fixed;top:0;left:0;height:3px;width:0;background:var(--accent);z-index:70;transition:width .08s linear}.toast{position:fixed;bottom:28px;left:50%;transform:translate(-50%,20px);opacity:0;pointer-events:none;transition:.2s;background:var(--ink);color:var(--surface);border-radius:9px;padding:11px 19px;font-size:12px;z-index:90}.toast.show{opacity:1;transform:translate(-50%,0)}.mobile-overlay{display:none}.font-tools{display:inline-flex;align-items:center;gap:3px}.font-tools button{border:0;background:none;color:var(--muted);padding:6px 5px;font-weight:700}.font-tools button:hover{color:var(--accent)}
@keyframes reveal{from{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:translateY(0)}}
@media(max-width:1280px){.article-layout{grid-template-columns:minmax(0,730px);max-width:890px;margin:auto}.toc{display:none}}
@media(max-width:800px){.sidebar{transform:translateX(-100%);transition:transform .2s;box-shadow:var(--shadow)}.sidebar.mobile-open{transform:translateX(0)}.mobile-overlay.open{display:block;position:fixed;inset:0;background:rgba(0,0,0,.34);z-index:25}.shell{margin-left:0}.topbar{height:62px;padding:0 17px}.topbar .mobile-brand{display:flex;align-items:center;gap:7px;font-weight:700;font-size:14px;letter-spacing:.06em}.topbar .mobile-brand .tiny-symbol{font-family:Georgia,serif;font-size:23px;color:var(--accent)}.topbar .crumb{display:none}.article-toolbar{top:62px}.home{padding:54px 23px}.article-layout{padding:0 24px 80px}.article-head{padding:45px 0}.article-title{font-size:38px}.feature{grid-template-columns:1fr;padding:28px;gap:15px}.feature-right{display:none}.brand{margin-bottom:38px}}
@media(max-width:450px){.article-title{font-size:33px}.chapter h2{font-size:26px}.article-layout{padding-left:19px;padding-right:19px}.block-text{font-size:calc(15.5px + var(--fontadjust));line-height:2.05}.original-content{font-size:14px}.article-toolbar{flex-wrap:wrap;margin-bottom:24px}.article-toolbar .tiny-label{font-size:10px}.top-actions{gap:0}.home-title{font-size:42px}.home-desc{font-size:14px}.feature h2{font-size:25px}.feature-footer{gap:8px}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;animation:none!important;transition:none!important}}