:root{--paper:#f7f8f4;--white:#fff;--ink:#243d35;--muted:#727b73;--green:#245d4d;--line:#e1e5dc;--sidebar:252px;--header:80px;font-family:Inter,"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",system-ui,sans-serif;color:var(--ink);background:var(--paper);font-synthesis:none}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:104px}body{margin:0}a{color:inherit;text-decoration:none}button,input{font:inherit}button{cursor:pointer}button,a,input,summary{-webkit-tap-highlight-color:transparent}button{color:inherit}a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid #58a785;outline-offset:4px}button:disabled{cursor:wait}button[hidden],[hidden]{display:none!important}.skip-link{position:fixed;top:-60px;left:20px;z-index:100;background:var(--green);color:white;padding:12px}.skip-link:focus{top:10px}.topbar{height:var(--header);position:fixed;inset:0 0 auto 0;z-index:30;background:rgba(247,248,244,.97);border-bottom:1px solid var(--line);display:flex;align-items:center;padding:0 34px;gap:34px}.brand{display:flex;align-items:center;gap:12px;font-size:15px;letter-spacing:1.4px;font-weight:750;min-width:218px}.brand-mark{height:40px;width:40px;background:#245d4d;border-radius:12px;color:#e3eddc;display:grid;place-content:center;font-size:26px;font-weight:800;letter-spacing:-4px;padding-right:4px;position:relative}.brand-mark span{font-size:14px;position:absolute;bottom:5px;right:5px;letter-spacing:0}.brand-sub{display:block;color:var(--muted);font-size:10px;letter-spacing:1.2px;font-weight:450;margin-top:4px}.topnav{display:flex;align-items:center;gap:28px;font-size:13px}.topnav a{padding:30px 0;color:#68736a}.topnav a:hover,.topnav a[aria-current]{color:var(--green)}.topnav a[aria-current]{box-shadow:inset 0 -2px var(--green)}.search-trigger{margin-left:auto;background:#eef0e9;border:1px solid var(--line);border-radius:8px;display:flex;gap:12px;align-items:center;padding:9px 12px;font-size:12px;color:#68736a;min-width:208px;text-align:left}.search-trigger>span:first-child{font-size:22px;line-height:16px}.search-trigger kbd{font-family:inherit;font-size:10px;padding:3px 5px;border:1px solid #d8ded3;border-radius:4px;margin-left:auto}.menu-toggle{display:none;border:0;background:none;font-size:22px;padding:6px}.sidebar{position:fixed;top:var(--header);left:0;bottom:0;width:var(--sidebar);border-right:1px solid var(--line);padding:30px 18px 22px;overflow-y:auto;background:var(--paper);z-index:25;scrollbar-width:thin}.sidebar-home{font-size:12px;color:var(--muted);margin:0 14px 30px;display:block}.sidebar-heading{display:flex;justify-content:space-between;margin:0 14px 18px;font-size:12px;font-weight:700;letter-spacing:1px}.sidebar-heading>span{color:#8d958b;font-size:11px;font-weight:400;letter-spacing:0}.chapter-link{display:flex;gap:12px;align-items:center;min-height:40px;font-size:12px;padding:9px 13px;border-radius:7px;margin-bottom:3px;color:#57675c}.chapter-link:hover{background:#edf0e7}.chapter-link.active{background:#e4ebdc;color:#245438;font-weight:650}.chapter-no{font-size:11px;color:#939e90;font-variant-numeric:tabular-nums;min-width:17px}.active .chapter-no{color:#547b4d}.done-dot{margin-left:auto;width:5px;height:5px;border-radius:50%}.done-dot.is-done{background:#52845a}.sidebar-bottom{border-top:1px solid var(--line);margin:26px 14px 0;padding-top:21px}.progress-copy{display:flex;justify-content:space-between;font-size:11px;color:#697566}.sidebar progress{width:100%;height:4px;border:0;border-radius:10px;background:#e1e5dc;display:block;margin:12px 0}.sidebar progress::-webkit-progress-bar{background:#e1e5dc;border-radius:10px}.sidebar progress::-webkit-progress-value{background:#5b8965;border-radius:10px}.sidebar progress::-moz-progress-bar{background:#5b8965}.sidebar-bottom p{font-size:10px;color:#929b8d;margin-bottom:24px}.sidebar-bottom>a{font-size:11px;color:#637b57}main{margin-left:var(--sidebar);padding-top:var(--header);min-height:calc(100vh - 140px)}.home-content{max-width:1340px;margin:auto;padding:58px 48px 50px}.hero{display:grid;grid-template-columns:1.12fr 1fr;gap:45px;align-items:center}.eyebrow{font-size:11px;letter-spacing:1px;font-weight:550;color:#6e8066;display:flex;align-items:center;gap:8px}.eyebrow>span{width:6px;height:6px;background:#7d9a60;border-radius:50%}.hero h1{font-size:clamp(32px,3.2vw,50px);line-height:1.5;letter-spacing:-1.7px;font-weight:650;margin:20px 0 19px}.hero h1>span{color:#5b8054}.hero-description{font-size:13px;color:#7b8378;line-height:2}.hero-actions{display:flex;align-items:center;gap:24px;margin-top:30px}.button{display:inline-flex;align-items:center;justify-content:center;gap:20px;font-size:12px;font-weight:550;border-radius:7px;padding:13px 19px;border:1px solid transparent;white-space:nowrap}.primary{background:#275b49;color:#fff}.primary:hover{background:#1d4b3b}.secondary{background:#fff;border-color:var(--line)}.text-link{font-size:12px;color:#627956;white-space:nowrap}.text-link:hover{text-decoration:underline}.continue-link{display:block;margin-top:17px;font-size:12px;text-decoration:underline;color:#5e7c57}.learning-note{border:1px solid #d9e0cf;border-radius:18px;background:#edf1e5;min-height:262px;padding:25px 27px;transform:rotate(-2deg);box-shadow:6px 8px 0 #eef0e7}.note-top{display:flex;align-items:center;gap:10px;font-size:10px;color:#657a57;letter-spacing:.5px}.note-spark{font-size:23px}.note-dot{width:6px;height:6px;background:#a5b88a;border-radius:50%;margin-left:auto}.note-prompt{font-size:clamp(17px,1.7vw,24px);font-weight:550;line-height:1.9;letter-spacing:.1px;margin:20px 0;color:#3c5941}.note-rule{height:1px;background:#d7dfca}.note-bottom{display:flex;gap:12px;justify-content:space-between;align-items:center;font-size:10px;line-height:1.8;color:#849279;margin-top:15px}.note-bottom>span:last-child{font-family:monospace;font-size:9px;white-space:nowrap}.course-facts{display:flex;gap:30px;align-items:center;padding:31px 0;border-bottom:1px solid var(--line);margin:22px 0 30px;font-size:11px;color:#8a9284}.course-facts strong{font-size:15px;color:#415b43;font-weight:650;margin-right:5px}.fact-tip{margin-left:auto;font-size:10px!important;color:#8a9284}.path-section{padding:25px 25px 22px;border:1px solid var(--line);border-radius:11px;background:#f1f3ec;display:flex;gap:28px;align-items:center}.path-section .eyebrow{font-size:10px}.path-section h2{font-size:18px;letter-spacing:-.6px;font-weight:600;white-space:nowrap;margin:10px 0 0}.path-steps{display:flex;gap:20px;flex:1}.path-steps>a{display:flex;align-items:center;gap:10px;flex:1;font-size:12px;color:#7a8b6e}.path-steps>a>span{font-size:10px;border:1px solid #ced9c3;border-radius:50%;padding:5px 6px}.path-steps strong{font-size:12px;color:#526749;font-weight:600;white-space:nowrap}.path-steps p{font-size:10px;color:#8a9483;margin:6px 0 0;line-height:1.6}.section-heading{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin:42px 0 22px}.section-heading .eyebrow{font-size:10px;color:#8d9785}.section-heading h2{font-size:23px;font-weight:600;letter-spacing:-.8px;margin:10px 0 0}.course-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.course-card{border:1px solid var(--line);border-radius:10px;background:var(--white);padding:22px;display:flex;flex-direction:column;transition:transform .15s,box-shadow .15s}.course-card:hover{transform:translateY(-3px);box-shadow:0 7px 20px #263c3010;border-color:#bac9b0}.card-top{display:flex;gap:12px;align-items:center}.tile{display:grid;place-items:center;border-radius:10px;width:38px;height:38px;font-size:13px;font-weight:650;font-variant-numeric:tabular-nums}.mint{background:#e9f0df;color:#62804a}.blue{background:#e5eef2;color:#5e7d88}.peach{background:#f6e9dd;color:#a7825d}.violet{background:#ece7f4;color:#8b78aa}.card-type{font-size:10px;color:#91998b}.card-arrow{color:#a6af9f;margin-left:auto;font-size:17px}.course-card h3{font-size:16px;font-weight:600;letter-spacing:-.3px;margin:18px 0 9px}.course-card p{font-size:11px;line-height:1.9;color:#8b9286;margin:0 0 20px;flex:1}.card-bottom{display:flex;gap:8px;align-items:center;border-top:1px solid #eff1eb;padding-top:14px;font-size:10px;color:#7b8b70}.card-bottom>span{margin-left:auto}.card-done.is-done::after{content:'已读 ✓';color:#4e8052}.mirror-note{margin-top:30px;border-left:2px solid #9bae89;padding:4px 20px;color:#7c8676}.mirror-note strong{font-size:12px;font-weight:600;color:#62735a}.mirror-note p{font-size:11px;line-height:2}.mirror-note a{font-size:11px;text-decoration:underline}.site-footer{margin-left:var(--sidebar);padding:25px 48px 35px;display:flex;justify-content:space-between;gap:30px;border-top:1px solid var(--line);font-size:10px;color:#8c9584;line-height:1.9}.site-footer a{text-decoration:underline}.site-footer>span:last-child{text-align:right}.reading-layout{display:grid;grid-template-columns:minmax(0,800px) 200px;gap:45px;max-width:1150px;padding:35px 42px 55px;margin:auto}.breadcrumbs{font-size:11px;color:#84917d;display:flex;gap:12px;align-items:center;margin-bottom:20px}.breadcrumbs a:hover{text-decoration:underline}.reading-tools{display:flex;gap:16px;align-items:center;padding-bottom:15px;border-bottom:1px solid var(--line);font-size:11px;color:#87907f}.reading-tools>span{margin-right:auto}.reading-tools a{color:#52744b}.reading-tools button{border:0;background:none;padding:0;color:#52744b;font-size:11px;white-space:nowrap}.prose{font-size:15px;line-height:1.95;color:#455047;overflow-wrap:anywhere}.prose h1{font-size:29px;line-height:1.5;font-weight:650;color:#2b4739;margin:25px 0}.prose h2{font-size:22px;line-height:1.6;color:#2d4d3b;font-weight:650;margin:42px 0 20px;padding-bottom:12px;border-bottom:1px solid var(--line)}.prose h3{font-size:18px;color:#35533e;margin:30px 0 15px;line-height:1.7;font-weight:600}.prose h4,.prose h5,.prose h6{font-size:16px;line-height:1.7;color:#35533e;margin:24px 0 12px}.prose p{margin:15px 0}.prose strong{font-weight:650;color:#344c39}.prose a{color:#3d795e;text-decoration:underline;text-underline-offset:3px}.prose a:hover{color:#21513c}.prose ul,.prose ol{padding-left:24px;margin:14px 0}.prose li{padding-left:3px;margin:4px 0}.prose blockquote{margin:22px 0;background:#eef2e8;border-left:3px solid #9aad85;padding:5px 18px;font-size:14px;color:#6c7e5f;border-radius:0 6px 6px 0}.prose hr{border:0;border-top:1px solid var(--line);margin:32px 0}.prose code{font-family:"SFMono-Regular",Consolas,monospace;background:#e9eee4;border-radius:4px;padding:2px 5px;font-size:.88em;overflow-wrap:anywhere}.prose pre{position:relative;border:1px solid #dce4d5;background:#edf1e7;padding:42px 18px 18px;border-radius:8px;overflow:auto;font-size:13px;line-height:1.8;white-space:pre-wrap;overflow-wrap:anywhere}.prose pre code{padding:0;border-radius:0;background:none}.copy-code{position:absolute;right:10px;top:8px;background:#f9fbf6;border:1px solid #d0dbc6;border-radius:5px;padding:3px 9px;font-size:10px;color:#6d805e}.table-wrap{overflow-x:auto;max-width:100%;margin:22px 0;border:1px solid var(--line);border-radius:7px;scrollbar-width:thin}.prose table{width:100%;border-collapse:collapse;font-size:12px;line-height:1.8;text-align:left;background:#fff}.prose th{background:#eaf0e3;font-weight:600;color:#506443}.prose td,.prose th{padding:11px 12px;border-bottom:1px solid #e7ecdf;min-width:85px}.prose tr:last-child td{border-bottom:0}.prose tr:nth-child(even) td{background:#f8faf5}.prose img{max-width:100%;height:auto}.toc{position:sticky;top:113px;align-self:start;max-height:calc(100vh - 140px);overflow-y:auto;scrollbar-width:thin;font-size:10px;line-height:1.8}.toc details{padding-left:18px;border-left:1px solid var(--line)}.toc summary{font-size:11px;font-weight:650;cursor:pointer;margin-bottom:12px;list-style:none;color:#66775b}.toc nav>a{display:block;color:#8c9683;padding:5px 0}.toc nav>a:hover,.toc nav>a.current{color:#386146}.back-top{display:block;margin:22px 18px;font-size:10px;color:#7c8e6a}.chapter-complete{margin:35px 0;padding:22px;border:1px solid var(--line);border-radius:8px;background:#f0f4e9;display:flex;align-items:center;gap:20px}.chapter-complete>span{font-size:11px;color:#819171}.page-turns{display:grid;grid-template-columns:1fr 1fr;gap:18px}.page-turns a{padding:20px;border:1px solid var(--line);background:#fff;border-radius:8px;font-size:14px;color:#526d43}.page-turns a:last-child{text-align:right}.page-turns small{display:block;font-size:10px;color:#95a087;margin-bottom:8px}.page-turns a:hover{border-color:#aabb98}.source-note{padding:15px 18px;background:#edf2e6;border:1px solid #d6e0ca;border-radius:7px;font-size:12px;line-height:1.9;color:#617653;margin-top:24px}.source-note a{text-decoration:underline}.mapping-content{padding:50px 45px;max-width:1100px;margin:auto}.mapping-content>h1{font-size:32px;font-weight:650;line-height:1.6;letter-spacing:-1px}.mapping-content>p{font-size:14px;line-height:1.9;color:#7e8b72}.mapping-content .prose{margin-top:35px;font-size:13px}.mapping-content .prose>h1{font-size:22px}.download-actions{display:flex;gap:15px;margin-top:25px;flex-wrap:wrap}dialog{width:min(660px,calc(100% - 28px));max-height:78vh;border:1px solid var(--line);border-radius:14px;padding:22px;background:var(--paper);color:var(--ink);box-shadow:0 30px 100px #18372830;margin:11vh auto auto}dialog::backdrop{background:#24392c60;backdrop-filter:blur(3px)}.search-head{display:flex;align-items:center;justify-content:space-between;font-size:14px;font-weight:600;margin-bottom:15px}.search-head button{border:0;background:transparent;padding:5px 8px;font-size:16px}#search-input{width:100%;background:#fff;border:1px solid #b2c1a2;border-radius:7px;padding:14px;font-size:14px;outline-color:#688e56;color:#304932}#search-status{font-size:12px;line-height:1.9;color:#839074}#search-results{display:grid;gap:10px;overflow:auto;max-height:45vh}.search-result{display:block;padding:15px;background:#fff;border:1px solid var(--line);border-radius:7px}.search-result:hover{border-color:#93ac7a}.search-result small{font-size:10px;color:#80936f}.search-result strong{display:block;font-size:14px;line-height:1.8;margin:4px 0;font-weight:600}.search-result p{font-size:11px;line-height:1.8;margin:5px 0 0;color:#8a9581}.toast{position:fixed;left:50%;bottom:30px;transform:translate(-50%,20px);padding:12px 22px;border-radius:8px;color:white;background:#315c41;opacity:0;pointer-events:none;font-size:12px;z-index:60;transition:.2s}.toast.show{opacity:1;transform:translate(-50%,0)}
@media(min-width:1650px){:root{--sidebar:274px}.home-content{padding-top:75px}.hero h1{font-size:52px}.hero-description{font-size:15px}.learning-note{padding:30px 35px}.note-prompt{font-size:27px}.course-card{padding:26px}.course-card h3{font-size:18px}.course-card p{font-size:13px}.chapter-link{font-size:13px;min-height:43px}.topnav{font-size:14px}.section-heading h2{font-size:27px}}
@media(max-width:1250px){:root{--sidebar:226px}.topbar{padding:0 24px;gap:20px}.brand{min-width:185px}.topnav{gap:20px}.home-content{padding:40px 32px}.hero{gap:25px}.hero h1{font-size:34px}.hero-actions{gap:16px}.learning-note{padding:20px}.note-prompt{font-size:19px}.note-bottom{font-size:9px}.fact-tip{display:none}.course-facts{justify-content:space-between;gap:15px}.path-section{display:block}.path-steps{margin-top:20px;gap:25px}.path-steps p{font-size:11px}.reading-layout{grid-template-columns:minmax(0,1fr) 155px;gap:25px;padding:30px}.course-card{padding:18px}.toc{font-size:10px}.site-footer{padding:25px 32px}.search-trigger{min-width:175px}.search-trigger kbd{display:none}}
@media(max-width:1020px){.reading-layout{display:flex;flex-direction:column;padding:30px 34px;gap:20px}.reading-main{order:2;min-width:0}.toc{position:static;max-height:180px;order:1;overflow-y:auto;border-bottom:1px solid var(--line);padding-bottom:12px}.toc nav{display:flex;flex-wrap:wrap;gap:3px 16px}.toc nav>a{font-size:10px}.toc .back-top{display:none}.toc details{padding-left:0;border:0}.course-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.hero{grid-template-columns:1fr}.learning-note{max-width:100%;transform:rotate(-1deg);min-height:auto;margin-top:10px}.note-prompt{font-size:19px;margin:15px 0}.note-prompt br{display:none}.hero h1{font-size:39px}.hero-description br{display:none}.section-heading{align-items:flex-start;flex-direction:column;gap:14px}.topnav{gap:15px;font-size:12px}.brand{min-width:180px}.search-trigger{min-width:auto}.search-label{display:none}.site-footer{flex-direction:column;gap:12px}.site-footer>span:last-child{text-align:left}}
@media(max-width:760px){:root{--sidebar:260px;--header:68px}.topbar{padding:0 20px;gap:14px}.brand{min-width:auto;font-size:14px;gap:10px}.brand-mark{width:36px;height:36px;font-size:24px}.brand-sub{font-size:9px}.topnav{display:none}.search-trigger{padding:9px 11px;margin-left:auto;background:none;border:0}.search-trigger>span:first-child{font-size:26px}.menu-toggle{display:block}.sidebar{transform:translateX(-100%);transition:transform .2s;padding-top:24px}.sidebar.is-open{transform:translateX(0)}.sidebar-backdrop{display:block;position:fixed;inset:var(--header) 0 0;background:#22352855;z-index:24;border:0}main,.site-footer{margin-left:0}.home-content{padding:35px 22px}.hero{gap:18px}.eyebrow{font-size:10px}.hero h1{font-size:36px;line-height:1.5;letter-spacing:-1.2px;margin:20px 0 14px}.hero-description{font-size:12px;line-height:2.1;max-width:360px}.hero-actions{margin-top:23px;gap:20px}.hero-actions .button{padding:12px 16px;font-size:12px}.text-link{font-size:11px}.learning-note{margin:15px 3px 0;padding:20px}.note-prompt{font-size:18px;line-height:2}.note-prompt br{display:inline}.note-bottom{font-size:9px}.course-facts{padding:25px 0;font-size:10px;gap:8px;margin:20px 0 24px}.course-facts strong{display:block;font-size:16px;margin-bottom:5px}.path-section{padding:23px 20px}.path-section h2{font-size:20px}.path-steps{display:grid;gap:20px}.path-steps>a{gap:14px;font-size:15px}.path-steps>a>div{flex:1}.path-steps p{font-size:11px}.path-steps strong{font-size:13px}.section-heading{margin-top:34px}.section-heading h2{font-size:22px;line-height:1.6}.course-grid{gap:12px}.course-card{padding:16px 14px}.tile{width:32px;height:32px;font-size:11px;border-radius:8px}.card-top{gap:7px}.card-type{font-size:9px}.card-arrow{display:none}.course-card h3{font-size:14px;line-height:1.6;margin-top:15px}.course-card p{font-size:10px;line-height:1.9;margin-bottom:18px}.card-bottom{font-size:9px;gap:3px}.mirror-note{padding-left:15px;margin-top:26px}.site-footer{padding:25px 22px}.reading-layout{padding:24px 22px 40px}.prose{font-size:15px;line-height:2}.prose h1{font-size:27px}.prose h2{font-size:21px;margin-top:34px}.prose h3{font-size:18px}.prose table{font-size:12px;min-width:500px}.prose pre{font-size:12px}.reading-tools{font-size:10px;gap:12px;flex-wrap:wrap}.reading-tools>span{width:100%;margin-bottom:0}.reading-tools button{font-size:10px}.breadcrumbs{margin-bottom:16px}.toc{max-height:120px}.chapter-complete{padding:18px;gap:12px;flex-wrap:wrap}.chapter-complete .button{font-size:11px}.page-turns{gap:12px}.page-turns a{padding:16px 12px;font-size:12px}.mapping-content{padding:35px 22px}.mapping-content>h1{font-size:29px}.mapping-content>p{font-size:13px}.mapping-content .prose{font-size:12px}.mapping-content .prose table{min-width:750px}.download-actions{gap:10px}.download-actions .button{font-size:11px;padding:12px 14px}.toast{max-width:90%;width:max-content;text-align:center}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{transition:none!important;animation:none!important}}
