:root{--ink:#171925;--muted:#656978;--blue:#3448ec;--violet:#8060d7;--line:#e5e6ed;--paper:#fafaff;--gold:#b38c4b;--ease:cubic-bezier(.22,1,.36,1)}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:108px}body{margin:0;background:#fff;color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;-webkit-font-smoothing:antialiased}body,p,h1,h2,h3,figure{margin:0}a{color:inherit;text-decoration:none}button{font:inherit}button,a,summary{-webkit-tap-highlight-color:transparent}button{cursor:pointer}button:disabled{cursor:default}img{display:block;max-width:100%}button[hidden],[hidden]{display:none!important}a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid #5367ef;outline-offset:5px;border-radius:6px}::selection{background:#dce1ff;color:#1d2bb1}.wrap{width:min(1240px,calc(100% - 72px));margin:auto}.icon{width:24px;height:24px;fill:none;stroke:currentColor;stroke-width:1.65;stroke-linecap:round;stroke-linejoin:round;flex:none}.svg-library{position:absolute;width:0;height:0;overflow:hidden}.skip-link{position:fixed;top:8px;left:16px;background:white;color:var(--blue);padding:12px;z-index:100;transform:translateY(-150%)}.skip-link:focus{transform:translateY(0)}
.reading-progress{position:fixed;top:0;left:0;right:0;height:3px;z-index:51;pointer-events:none}.reading-progress span{display:block;height:100%;background:linear-gradient(90deg,#3553f4,#ad7ef2);transform:scaleX(0);transform-origin:left}.edu-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.89);border-bottom:1px solid rgba(35,41,76,.06);backdrop-filter:blur(18px)}.nav-row{display:flex;align-items:center;justify-content:space-between;min-height:80px;gap:24px}.brand{font-family:"Yunke Serif","Noto Serif SC",serif;font-size:29px;white-space:nowrap;letter-spacing:1px;display:flex;align-items:center;line-height:1}.brand>span{color:var(--gold)}.brand small{font-family:Arial,sans-serif;font-size:9px;letter-spacing:1.8px;font-weight:600;color:#7e8392;border-left:1px solid #d9dbe5;padding-left:15px;margin-left:16px}.nav-row nav{display:flex;align-items:center;gap:25px;font-size:13px;color:#515565;white-space:nowrap}.nav-row nav a{transition:color 160ms}.nav-row nav a[aria-current]{color:var(--blue);font-weight:600;position:relative}.nav-row nav a[aria-current]::after{content:"";position:absolute;bottom:-12px;left:50%;width:4px;height:4px;background:var(--blue);border-radius:50%;transform:translateX(-50%)}.nav-row nav .nav-contact{display:inline-flex;align-items:center;gap:12px;padding:12px 19px;background:#edf0ff;color:#2b40cf;border-radius:40px}.nav-contact .icon{width:16px;height:16px}.menu-toggle{border:0;background:#f0f2fc;border-radius:50%;width:42px;height:42px;padding:12px;color:var(--ink)}.menu-toggle span{display:block;height:1px;background:currentColor;margin:5px 0;transition:transform 160ms}.menu-toggle[aria-expanded=true] span:first-child{transform:translateY(3px) rotate(45deg)}.menu-toggle[aria-expanded=true] span:last-child{transform:translateY(-3px) rotate(-45deg)}
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.section{padding:112px 0}h2{font-size:clamp(32px,3.4vw,46px);font-weight:600;letter-spacing:-1.5px;line-height:1.3}h3{font-weight:600;letter-spacing:-.4px}.section-head{display:flex;justify-content:space-between;align-items:flex-end;gap:55px;margin-bottom:50px}.section-head>p{max-width:390px;line-height:1.95;color:var(--muted);font-size:15px;padding-bottom:4px}.programs{background:#f7f8fc}.program-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}.program-card{background:#fff;border:1px solid #e9eaf2;border-radius:24px;padding:32px 29px 26px;display:flex;flex-direction:column;transition:box-shadow 220ms,transform 220ms var(--ease)}.program-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:30px}.program-icon{display:flex;align-items:center;justify-content:center;width:53px;height:53px;background:#edf0ff;border:1px solid #e0e6ff;color:#3e52e3;border-radius:17px}.program-icon .icon{width:25px;height:25px}.card-index{font:10px monospace;letter-spacing:1px;color:#a2a5b3}.program-card h3{font-size:24px}.program-who{font-size:12px;color:#7f8598;margin-top:10px}.program-description{margin:23px 0 20px;font-size:14px;line-height:1.9;color:#606577;min-height:78px}.program-card ul{list-style:none;padding:0;margin:0 0 30px;display:grid;gap:12px;font-size:13px;color:#454b60}.program-card li{display:flex;gap:10px;align-items:center}.program-card li::before{content:"✓";color:#5f72d5;font-size:13px}.card-link{display:flex;justify-content:space-between;align-items:center;border-top:1px solid #eceef5;padding-top:22px;color:var(--blue);font-size:13px;margin-top:auto}.card-link .icon{width:18px;height:18px;transition:transform 200ms var(--ease)}.lilac .program-icon{color:#8e64cd;background:#f3edfc;border-color:#ece2fb}.mint .program-icon{color:#4a948c;background:#eaf5f2;border-color:#ddf0e9}.section-note{font-size:11px;line-height:1.7;color:#8a8e9d;margin-top:24px}
.learning-grid{display:grid;grid-template-columns:.95fr 1fr;gap:100px;align-items:start}.section-intro{font-size:15px;line-height:1.9;color:var(--muted);margin-top:25px}.learning-steps{padding:0;margin:42px 0 0;list-style:none}.learning-steps li{display:flex;gap:22px;padding:27px 0;border-top:1px solid var(--line)}.step-number{display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:650;color:var(--blue);width:35px;height:35px;flex:none;background:#f0f2fe;border-radius:50%;margin-top:2px}.learning-steps h3{font-size:20px;margin-bottom:12px}.learning-steps p{font-size:14px;line-height:1.9;color:var(--muted);max-width:350px}.step-output{display:inline-flex;margin-top:14px;font-size:11px;letter-spacing:.3px;color:#666e9d;background:#f5f5fa;padding:6px 10px;border-radius:5px}.step-output::before{content:"↳";margin-right:8px;color:#8a93c6}.lesson-stage{position:sticky;top:115px;background:radial-gradient(ellipse at 70% 0%,#e6dcfd,transparent 70%),#eff1fe;border:1px solid #e4e5f5;border-radius:28px;padding:25px;overflow:hidden}.lesson-stage-head{display:flex;justify-content:space-between;font-size:10px;color:#8a86a2;letter-spacing:.4px;gap:14px;margin-bottom:24px}.lesson-stage-head>span:first-child{color:#626293;display:flex;align-items:center;gap:7px}.lesson-stage-head i{width:5px;height:5px;background:#8d7bef;border-radius:50%}.lesson-notebook{background:#ffffffed;border:1px solid #fff;border-radius:16px;padding:28px 24px 21px;box-shadow:0 18px 45px #8784b71c}.notebook-heading{display:flex;align-items:center;gap:12px;margin-bottom:28px}.notebook-icon{display:flex;align-items:center;justify-content:center;width:40px;height:46px;background:#eeeaff;color:#7a65d8;border-radius:9px}.notebook-heading small{font-size:9px;letter-spacing:1px;color:#9293a4}.notebook-heading h3{font-size:17px;margin-top:6px}.lesson-label{font-size:10px;font-weight:550;letter-spacing:.4px;color:#8b8a9f;display:flex;align-items:center;gap:6px}.lesson-piece p{font-size:13px;line-height:1.85;margin-top:11px;color:#596079}.lesson-input{padding:14px 16px;background:#f7f8fc;border-radius:10px}.lesson-connector{text-align:center;color:#b0b8e3;height:27px;line-height:27px;font-size:15px}.lesson-prompt{padding:0 16px}.lesson-result{background:#f0f2ff;border:1px solid #e0e5fe;border-radius:10px;padding:16px}.lesson-result .lesson-label{color:#4c5ac4}.lesson-result .icon{width:14px;height:14px}.lesson-result ul{list-style:none;padding:0;margin:17px 0 1px;display:grid;gap:13px;font-size:12px;color:#555e90}.lesson-result li{display:flex;gap:17px}.lesson-result li>span{color:#8b91ad;flex:none}.lesson-approval{display:flex;align-items:center;gap:8px;color:#7b819b;font-size:10px;line-height:1.6;margin-top:21px}.lesson-approval .icon{width:16px;height:16px;color:#888cbb}.lesson-bottom{display:flex;justify-content:space-between;align-items:center;font-size:9px;color:#8986a3;gap:12px;margin-top:20px}.replay-button{font-size:11px;padding:8px 12px;border:1px solid #cbc8e5;border-radius:20px;background:#ffffff70;color:#6d68a8;min-height:35px}.replay-button span{margin-left:5px}
.practice{background:#f7f8fc}.practice-grid{display:grid;grid-template-columns:1.1fr .75fr .75fr;grid-template-rows:auto auto;gap:20px}.practice-card{border-radius:24px;padding:25px 27px;overflow:hidden;min-width:0;position:relative}.practice-heading{display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:10px;letter-spacing:.3px;color:#838498}.practice-heading>span:first-child{color:#63677c}.practice-content{background:#e9e7f6;grid-row:span 2;display:flex;flex-direction:column}.story-layout{position:relative;min-height:350px;margin:38px 0 5px}.story-cover{background:#38304b;position:relative;color:#f5eddb;padding:22px;width:73%;height:286px;border-radius:3px;transform:rotate(-8deg);box-shadow:12px 20px 26px #5b527333;overflow:hidden;isolation:isolate}.story-cover>span{font-family:serif;display:block;font-size:27px;line-height:1.35}.story-cover small{position:absolute;bottom:16px;font-size:9px;letter-spacing:2px;z-index:2}.jade-object{width:140px;height:140px;border:25px solid #a6b7a4;background:transparent;border-radius:50%;transform:rotateX(28deg) rotateY(27deg) rotate(-25deg);position:absolute;right:-19px;bottom:32px;box-shadow:inset -6px 4px 5px #e5edde,3px 6px 1px #65796c,8px 11px 26px #08080970}.story-note{width:47%;padding:18px 15px;background:#fffaf0;box-shadow:0 10px 25px #64527215;position:absolute;bottom:11px;right:0;transform:rotate(6deg);border-radius:2px}.story-note>span{font-size:10px;color:#aa956a}.story-note p{font-size:15px;line-height:1.85;color:#5e5b54;margin:15px 0}.story-note i{font-size:8px;color:#ab9f84;font-style:normal}.practice-caption{margin-top:auto;position:relative}.practice-caption h3{font-size:22px;margin:12px 0}.practice-caption p{font-size:13px;line-height:1.9;color:#737588}.practice-caption .mini-label{font-size:9px;letter-spacing:1.8px;color:#9a90ad}.practice-content .practice-caption{padding-bottom:9px}.practice-knowledge{background:#e7edfe}.practice-review{background:#f5eee5}.knowledge-stack{height:158px;position:relative;margin:21px 0 0}.knowledge-stack>span{position:absolute;display:flex;align-items:center;justify-content:center;background:#fff;color:#787fbc;border:1px solid #dce2f8;box-shadow:0 6px 15px #6172aa0d;width:142px;height:46px;font-size:13px;border-radius:8px;left:50%;transform:translateX(-50%) rotate(-9deg);top:14px}.knowledge-stack>span:nth-child(2){transform:translateX(-48%) rotate(4deg);top:53px;color:#7e7da9;background:#f7f8ff}.knowledge-stack>span:last-child{transform:translateX(-54%) rotate(-3deg);top:94px;background:#4b61df;color:white;gap:8px;border-color:#4b61df}.knowledge-stack .icon{width:16px;height:16px}.practice-knowledge h3,.practice-review h3{font-size:19px}.review-board{height:150px;position:relative;margin:24px 0 5px;padding:20px 16px;background:#fffaf5;border:1px solid #ece3d7;border-radius:10px;transform:rotate(4deg);box-shadow:0 6px 15px #95836208}.review-board>span{display:flex;align-items:center;gap:8px;margin:0 0 15px;font-size:11px;color:#979180}.review-board i{display:block;width:9px;height:9px;border:1px solid #d6cab5;border-radius:3px}.review-board>span:first-child i{background:#d9c9a9}.review-board>.icon{position:absolute;right:12px;bottom:14px;width:30px;height:30px;color:#a5ae8a;border-radius:50%;background:#edf1e3;padding:6px}.practice-workflow{grid-column:2 / 4;background:#fff;border:1px solid #eceef5}.workflow-strip{display:flex;align-items:center;justify-content:center;gap:14px;margin:29px 0 24px}.workflow-strip>span{padding:18px 16px;border:1px solid #e9e9f3;background:#fafaff;border-radius:12px;font-size:12px;color:#9194ad;display:flex;align-items:center;gap:7px}.workflow-strip>i{font-style:normal;color:#c6c9db}.workflow-strip>.workflow-ai{color:#5964d2;border-color:#d6dcfb;background:#eff1ff}.workflow-ai .icon{width:19px;height:19px}.practice-workflow h3{font-size:20px}
.center-head{text-align:center;max-width:640px;margin:0 auto 58px}.center-head .overline{margin-bottom:22px}.center-head p:last-child{font-size:15px;color:var(--muted);line-height:1.9;margin-top:24px}.principle-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:28px;margin-bottom:92px}.principle-grid article{border-top:1px solid #dbe0f2;padding:24px 7px 0}.principle-grid article>span{font-size:11px;font-family:monospace;color:#7f8cc7}.principle-grid h3{font-size:20px;margin:25px 0 15px}.principle-grid p{font-size:14px;color:var(--muted);line-height:1.9}.responsible-card{background:radial-gradient(ellipse at 20% 5%,#2b2f62,transparent 72%),#141727;display:grid;grid-template-columns:1fr .9fr;gap:70px;padding:65px 65px 70px;border-radius:28px;color:#fafaff}.responsible-icon{width:48px;height:48px;display:flex;align-items:center;justify-content:center;color:#b7bffc;border:1px solid #494b76;border-radius:13px;margin-bottom:25px;background:#ffffff08}.responsible-card .overline{color:#828abd;font-size:9px;letter-spacing:2px;margin-bottom:20px}.responsible-card h2{font-size:35px;line-height:1.45}.responsible-card>div:last-child{align-self:center}.responsible-card>div>p:not(.overline){font-size:15px;line-height:2;color:#b5bbd5}.responsibility-tags{display:flex;flex-wrap:wrap;gap:10px;list-style:none;padding:0;margin:30px 0 30px}.responsibility-tags li{font-size:11px;letter-spacing:.4px;border:1px solid #525579;background:#ffffff04;border-radius:30px;padding:10px 15px;color:#c9cee6}.responsibility-note{color:#747eaa;font-size:12px}
.faq{padding-top:15px;padding-bottom:108px}.faq-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:80px}.faq-grid h2{font-size:37px}.faq-list details{border-bottom:1px solid var(--line)}.faq-list details:first-child{border-top:1px solid var(--line)}.faq-list summary{display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:77px;padding:20px 2px;font-size:15px;cursor:pointer;list-style:none}.faq-list summary::-webkit-details-marker{display:none}.faq-list summary span{font-size:22px;font-weight:300;color:#777fb4;transition:transform 160ms}.faq-list details[open] summary span{transform:rotate(45deg)}.faq-list details p{font-size:14px;line-height:1.9;color:var(--muted);padding:0 30px 24px 2px}.cooperate-section{padding:0 0 100px}.cooperate-card{display:grid;grid-template-columns:1.1fr .9fr;border-radius:28px;overflow:hidden;background:#f1f1fd;min-height:440px}.cooperate-copy{padding:57px 56px}.cooperate-copy h2{font-size:38px;line-height:1.38}.cooperate-copy>p:not(.overline){color:var(--muted);font-size:14px;line-height:1.9;margin:24px 0 28px}.cooperate-copy>small{display:block;font-size:10px;line-height:1.8;color:#9195ac;margin-top:19px}.cooperate-visual{position:relative;background:radial-gradient(ellipse at 100% 0%,#c7b9f2,transparent),linear-gradient(140deg,#d4dbff,#e9deff);display:flex;align-items:center;justify-content:center;isolation:isolate;overflow:hidden}.collab-word{position:absolute;left:30px;top:35px;font-size:60px;font-weight:700;line-height:1.3;color:#fff7;letter-spacing:-4px;z-index:-1}.collab-circles{display:flex;align-items:center;transform:rotate(-12deg);position:relative;gap:0;margin-top:60px}.collab-circles>span{width:143px;height:143px;background:#f9f7ff;color:#877dd1;border:1px solid #ffffff99;display:flex;justify-content:center;align-items:center;font-size:47px;font-weight:550;box-shadow:6px 17px 0 #b6b2d5,7px 30px 34px #61529925;border-radius:42px}.collab-circles>span:last-child{background:#5970ed;color:#fff;transform:translateY(-35px) rotate(8deg);box-shadow:6px 17px 0 #485cc4,7px 30px 34px #61529930}.collab-circles i{font-size:29px;font-style:normal;color:#fff;position:relative;z-index:2;display:block;width:37px;text-align:center;transform:translateY(-16px)}.collab-sticker{display:flex;align-items:center;gap:11px;padding:15px 18px;color:#7664b1;border:1px solid #ffffffab;background:#ffffffe0;border-radius:10px;position:absolute;bottom:32px;right:28px;font:9px monospace;letter-spacing:1px;transform:rotate(5deg)}.collab-sticker .icon{width:19px;height:19px}.edu-footer{border-top:1px solid #ecedf5;padding:42px 0 28px}.footer-main{display:flex;align-items:center;justify-content:space-between;gap:30px;margin-bottom:35px}.footer-main p{font-size:12px;color:#999dad;margin-right:auto}.footer-main>a:last-child{font-size:11px;color:#7f879f}.footer-main .brand{font-size:25px}.footer-bottom{border-top:1px solid #eeeff6;padding-top:24px;display:flex;justify-content:space-between;gap:20px;color:#9499a8;font-size:10px;line-height:1.6}
@media(hover:hover) and (pointer:fine){.nav-row nav a:hover{color:var(--blue)}.primary:hover{background:#2437cc;box-shadow:0 10px 22px #3448ec29;transform:translateY(-2px)}.button:hover .icon,.card-link:hover .icon{transform:translateX(3px)}.text-button:hover{background:#e8ecff80}.program-card:hover{box-shadow:0 16px 38px #3441780a;transform:translateY(-4px)}.replay-button:hover{background:#fff}.card-link:hover{color:#152ba8}}.button:active,.replay-button:active{transform:scale(.98)}
.menu-toggle{display:none}.learning-illustration{height:auto;-webkit-mask-image:linear-gradient(to right,transparent,#000 9%,#000 91%,transparent),linear-gradient(to bottom,transparent,#000 10%,#000 90%,transparent);mask-image:linear-gradient(to right,transparent,#000 9%,#000 91%,transparent),linear-gradient(to bottom,transparent,#000 10%,#000 90%,transparent);-webkit-mask-composite:source-in;mask-composite:intersect}
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