@charset "UTF-8";
:root{--paper:#f7f5ef;--paper-deep:#efede5;--paper-dark:#deded4;--ink:#272e29;--ink-soft:#676e65;--ink-faint:#81867c;--orange:#ed653b;--blue:var(--orange);--green:#53715c;--amber:#b56d2c;--red:#b84232;--line:1px solid var(--paper-dark);--mono:ui-monospace,SFMono-Regular,Consolas,monospace;--topbar-h:84px}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:110px}body{margin:0;background:var(--paper);color:var(--ink);font:15px/1.65 -apple-system,BlinkMacSystemFont,"Helvetica Neue","PingFang SC","Microsoft YaHei",sans-serif}a{color:inherit;text-decoration:none}button,input,select{font:inherit}button,a,input,select{ -webkit-tap-highlight-color:transparent}button{cursor:pointer}button:disabled{cursor:wait;opacity:.6}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid var(--orange);outline-offset:4px}h1,h2,h3,p{margin:0}::selection{background:#ed653b33}.skip{position:fixed;top:-100px;left:16px;z-index:999;background:var(--ink);color:white;padding:12px}.skip:focus{top:10px}.wrap{max-width:1360px;padding-inline:64px;margin-inline:auto}.mono,.eyebrow{font-family:var(--mono);font-size:11px;letter-spacing:.09em}.eyebrow{color:var(--ink-soft)}.site-header{height:84px;margin:0 40px;display:flex;align-items:center;justify-content:space-between;border-bottom:var(--line);gap:24px}.brand{display:inline-flex;align-items:center;gap:8px;font-size:23px;font-weight:650;letter-spacing:-1px;white-space:nowrap}.brand img{object-fit:contain}.site-header nav{display:flex;gap:36px;font-size:13px}.site-header nav a{position:relative}.site-header nav a:hover,.site-header nav [aria-current]{color:var(--orange)}.login-link{border:1px solid #b9bdb2;border-radius:99px;padding:8px 20px;font-size:12px}.login-link span{margin-left:22px}.login-link:hover{background:var(--ink);color:var(--paper)}.home-hero{padding-top:62px}.live-dot{display:inline-block;width:6px;height:6px;background:var(--orange);border-radius:50%;margin-right:8px;box-shadow:0 0 0 5px #ed653b12}.hero-title{display:grid;grid-template-columns:1.3fr 1fr;gap:60px;align-items:end;margin-top:38px}h1{font-size:clamp(58px,7vw,104px);line-height:1.15;letter-spacing:-.065em;font-weight:550}.hero-title h1 span{color:var(--orange)}.hero-note{padding-bottom:10px;justify-self:end}.hero-note .mono{font-size:10px;color:var(--ink-soft)}.hero-note p{font-size:16px;line-height:1.9;margin:20px 0 26px}.text-link{display:inline-flex;gap:24px;align-items:center;font-size:13px;border-bottom:1px solid var(--ink);padding-bottom:5px}.text-link:hover{color:var(--orange);border-color:var(--orange)}.branch-stage{position:relative;margin-top:50px;height:370px;background-image:radial-gradient(#b9bdae80 .65px,transparent .65px);background-size:20px 20px;border-top:var(--line);overflow:hidden}.stage-label{position:absolute;top:22px;left:18px;color:var(--ink-soft)}.branch-map{width:100%;height:260px;overflow:visible}.main-route{stroke:#b9bdb2;stroke-width:2}.grow-route{stroke:var(--orange);stroke-width:3;stroke-dasharray:700;stroke-dashoffset:700;animation:draw 1.8s .2s ease forwards}.route-two{animation-delay:.5s}.map-nodes{fill:var(--paper);stroke:var(--orange);stroke-width:3}.node-label{position:absolute;top:262px;transform:translateX(-50%);display:flex;flex-direction:column;gap:7px;white-space:nowrap}.node-label .mono{color:var(--ink-soft);font-size:10px}.node-label strong{font-size:14px;font-weight:500}.node-label:hover{color:var(--orange)}.node-left{left:27.3%}.node-center{left:50%}.node-right{left:77.3%}.stage-bottom{position:absolute;bottom:0;left:0;right:0;display:flex;justify-content:space-between;color:var(--ink-soft);border-top:var(--line);padding-block:14px;font-size:9px}.branch-section{padding-top:100px;padding-bottom:100px}.section-heading{display:grid;grid-template-columns:1fr 1.4fr;gap:20px}.section-heading>.eyebrow{grid-column:1/-1}h2{font-size:clamp(27px,3.2vw,46px);font-weight:500;letter-spacing:-.045em;line-height:1.3}.section-heading p{justify-self:end;align-self:end;color:var(--ink-soft);font-size:13px}.project-feature{display:grid;grid-template-columns:1fr 1.15fr;margin-top:42px;background:#eaece2;min-height:470px;border-radius:4px;overflow:hidden}.project-description{padding:46px;display:flex;align-items:flex-start;flex-direction:column}.pill{border:1px solid #bac5b3;color:#526048;padding:4px 12px;border-radius:40px;font-size:11px}h3{font-weight:500}.project-description h3{font-size:42px;line-height:1.3;letter-spacing:-.05em;margin:25px 0 18px}.project-description p{color:var(--ink-soft);font-size:13px}.button{display:inline-flex;align-items:center;justify-content:center;gap:35px;padding:13px 21px;border:0;background:var(--ink);color:white;border-radius:4px;font-size:13px;transition:background .2s,transform .2s}.button:hover,.project-feature:hover .button{background:var(--orange)}.project-description .button{margin-top:26px}.project-index{margin-top:34px;font-size:9px;color:var(--ink-soft)}.schedule-art{margin:64px -25px 45px 10px;background:var(--paper);border:1px solid #d1d5c6;border-radius:8px;padding:23px;transform:rotate(-3deg);box-shadow:0 20px 50px #26352510;transition:transform .6s}.project-feature:hover .schedule-art{transform:rotate(0) translateX(-10px)}.mock-toolbar,.mock-foot{display:flex;justify-content:space-between;align-items:center;font-size:11px}.mock-toolbar>span+span{font:9px var(--mono);color:var(--ink-soft)}.mock-toolbar i{display:inline-block;width:7px;height:7px;border-radius:50%;background:var(--orange);margin-right:6px}.mock-days{display:grid;grid-template-columns:repeat(5,1fr);margin-top:24px;font:9px var(--mono);text-align:center;color:var(--ink-soft)}.mock-grid{height:230px;position:relative;background:repeating-linear-gradient(to bottom,transparent 0 56px,#dfe2d7 56px 57px),repeating-linear-gradient(to right,transparent 0 calc(20% - 1px),#dfe2d7 calc(20% - 1px) 20%);margin-top:14px;border-top:var(--line)}.mock-class{position:absolute;border-radius:3px;padding:9px;font-size:11px;width:37%;height:72px;background:#dbe2d0;border-left:2px solid #778a65}.mock-class span{display:block;font:8px var(--mono);margin-top:9px}.mc1{left:1%;top:7px;background:#f5d6c6;border-color:var(--orange)}.mc2{left:61%;top:45px}.mc3{left:21%;top:125px;background:#e0e0d6}.mc4{left:61%;top:155px;background:#f5d6c6;border-color:var(--orange)}.mock-foot{padding-top:16px;color:var(--ink-soft);font-size:9px}.journal-section{padding-bottom:110px}.section-bar{display:flex;align-items:end;justify-content:space-between;margin-bottom:34px}.section-bar h2{margin-top:15px}.note-row{display:grid;grid-template-columns:170px 1fr 150px 30px;align-items:center;gap:22px;padding:32px 0;border-top:var(--line);border-bottom:var(--line)}.note-row .mono{font-size:9px;color:var(--ink-soft)}.note-row h3{font-size:20px}.note-tag{font-size:11px;color:var(--ink-soft)}.row-arrow{font-size:25px;transition:transform .25s}.note-row:hover .row-arrow{transform:translate(4px,-4px);color:var(--orange)}.quiet-note{display:flex;gap:50px;margin-top:24px;color:var(--ink-soft);font-size:12px}.quiet-note .mono{font-size:9px}.about-section{background:var(--ink);color:var(--paper);padding:100px 0}.about-grid{display:grid;grid-template-columns:.6fr 1fr;gap:40px}.about-grid>.eyebrow{color:#a7aea2}.about-grid h2{font-size:clamp(33px,4vw,56px)}.about-grid h2 span{color:var(--orange)}.about-grid p{margin-top:26px;max-width:530px;color:#b9c0b4;font-size:14px}.about-grid .mono{color:var(--orange);margin-top:40px}.site-footer{padding:34px 40px;display:flex;align-items:center;gap:35px;font-size:11px;color:var(--ink-soft)}.site-footer .brand{color:var(--ink);font-size:20px}.site-footer>span{margin-left:auto}.site-footer>a:last-child{margin-left:20px}.page-intro{padding-top:62px;padding-bottom:45px}.page-intro h1{font-size:clamp(40px,5vw,68px);margin:22px 0}.page-intro p{color:var(--ink-soft);max-width:650px}.page-intro .eyebrow{color:var(--orange)}.reveal{animation:appear .7s ease both}.reveal.is-waiting{opacity:0;transform:translateY(22px)}.reveal.is-visible{opacity:1;transform:none;transition:opacity .8s,transform .8s}@keyframes draw{to{stroke-dashoffset:0}}@keyframes appear{from{opacity:0;transform:translateY(15px)}to{opacity:1;transform:none}}.article-content{max-width:760px;margin:0 auto;padding:30px 28px 90px;line-height:1.9}.article-content h2,.article-content h3{margin:38px 0 16px}.article-content p{margin:16px 0}.article-content pre{padding:22px;overflow:auto;background:#eaece4;border-radius:4px;font-size:13px}.article-content code{font-family:var(--mono)}.article-content a{text-decoration:underline;text-underline-offset:4px}.article-content img{max-width:100%}.article-content table{display:block;overflow:auto;border-collapse:collapse}.article-content td,.article-content th{padding:8px;border:var(--line)}.empty-state{padding:70px 0;border-block:var(--line);color:var(--ink-soft)}
@media(min-width:1500px){.home-hero{padding-top:80px}.branch-stage{margin-top:65px}}@media(max-width:900px){.wrap{padding-inline:30px}.site-header{margin-inline:24px}.hero-title{gap:30px}.hero-note p{font-size:14px}.hero-note .mono{font-size:8px}.project-description{padding:30px}.project-description h3{font-size:33px}.note-row{grid-template-columns:120px 1fr 25px}.note-tag{display:none}.site-footer{flex-wrap:wrap}.about-grid{grid-template-columns:.35fr 1fr}.schedule-art{padding:15px}.node-label strong{font-size:12px}}@media(max-width:600px){.site-header{height:72px;margin-inline:20px;gap:10px}.brand{font-size:20px}.brand img{width:27px;height:27px}.site-header nav{gap:15px;font-size:11px}.site-header nav a:first-child{display:none}.login-link{padding:5px 10px;font-size:11px}.login-link span{display:none}.wrap{padding-inline:22px}.home-hero{padding-top:36px}.home-hero>.eyebrow{font-size:8px}.hero-title{grid-template-columns:1fr;margin-top:25px;gap:28px}h1{font-size:62px}.hero-note{justify-self:start}.hero-note p{margin:12px 0 18px}.branch-stage{margin-top:34px;height:290px}.branch-map{height:195px;width:135%;margin-left:-17.5%}.stage-label{font-size:8px;left:0;top:9px}.node-label{top:200px}.node-left{left:18%}.node-right{left:87%}.node-label strong{font-size:10px}.node-label .mono{font-size:8px}.stage-bottom{font-size:7px}.branch-section{padding-block:65px}.section-heading{grid-template-columns:1fr;gap:15px}.section-heading p{justify-self:start}.project-feature{grid-template-columns:1fr;margin-top:28px}.project-description{padding:28px}.project-description h3{font-size:36px}.schedule-art{margin:0 -10px 28px 28px;transform:rotate(-3deg);min-height:300px}.section-bar{gap:20px}.section-bar .text-link{white-space:nowrap;font-size:11px}.journal-section{padding-bottom:65px}.note-row{grid-template-columns:1fr 25px;gap:12px;padding-block:25px}.note-row>.mono{grid-column:1/-1}.note-row h3{font-size:17px}.quiet-note{flex-direction:column;gap:10px}.about-section{padding-block:65px}.about-grid{grid-template-columns:1fr;gap:25px}.site-footer{padding:25px 22px;gap:18px}.site-footer p{display:none}.site-footer>span{font-size:9px}.site-footer>a:last-child{margin-left:0}.page-intro{padding-top:40px}.page-intro h1{font-size:43px}.page-intro p{font-size:13px}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{animation:none!important;transition:none!important}.grow-route{stroke-dashoffset:0}.reveal.is-waiting{opacity:1;transform:none}}

.note-tabs{display:flex;gap:24px;border-bottom:var(--line);padding-bottom:14px;font-size:13px}.note-tabs a:hover{color:var(--orange)}

/* Theme tokens shared by the explorer, articles, login and course planner. */
:root { color-scheme: light; --surface:#fffdf9; --branch-a:#db7440; --branch-b:#8a9460; --branch-c:#528d9e; --branch-d:#a181a8; }
html[data-theme="dark"] { color-scheme: dark; --paper:#1e1e1e; --paper-deep:#2d2d2d; --paper-dark:#3c3c3c; --surface:#252526; --ink:#d4d4d4; --ink-soft:#9d9d9d; --ink-faint:#858585; --orange:#f18b62; --green:#9bb888; --red:#ef9d8c; --branch-a:#ef9a6a; --branch-b:#b5c27f; --branch-c:#82baca; --branch-d:#c3a0c9; }
.header-actions { display:flex; align-items:center; gap:12px; }
.theme-toggle { display:inline-flex; width:34px; height:34px; align-items:center; justify-content:center; padding:0; border:var(--line); border-radius:50%; background:transparent; color:var(--ink); font-size:20px; line-height:1; }
.theme-toggle:hover { border-color:var(--orange); color:var(--orange); }
html[data-theme="dark"] .login-link:hover { color:var(--paper); }
html[data-theme="dark"] .button { background:var(--orange); color:#19201b; }
html[data-theme="dark"] .article-content pre { background:var(--paper-deep); }
html[data-theme="dark"] .station-panel { background:var(--surface); }
html[data-theme="dark"] #searchInput, html[data-theme="dark"] .course-actions .detail { background:var(--paper); }
html[data-theme="dark"] .badge { background:#34402e; color:#c3d5b4; }
html[data-theme="dark"] .badge.g-考试 { background:#48382e; color:#f5bc95; }
html[data-theme="dark"] .course-cell { background:#49352b; color:#f2d9c5; }
html[data-theme="dark"] .detail-actions #modalAddBtn { color:#19201b; }
html[data-theme="dark"] .login-story { background:var(--paper-deep); }
html[data-theme="dark"] .login-panel { background:var(--surface); }
html[data-theme="dark"] form input { border-color:var(--paper-dark); }
html[data-theme="dark"] .modal { box-shadow:0 30px 100px #0008; }
html[data-theme="dark"] #toast { background:#d7e2ce; color:#182019; }
html[data-theme="dark"] #toast.error { background:#9b3e29; color:white; }
@media(max-width:600px) { .header-actions { gap:7px; } .theme-toggle { width:28px; height:28px; font-size:17px; } .site-header nav { gap:12px; } }