@layer theme{:root,:host{--font-sans:ui-sans-serif, system-ui, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji";--font-mono:ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;--spacing:.25rem;--default-font-family:var(--font-sans);--default-mono-font-family:var(--font-mono)}}@layer base{*,:after,:before,::backdrop{box-sizing:border-box;border:0 solid;margin:0;padding:0}::file-selector-button{box-sizing:border-box;border:0 solid;margin:0;padding:0}html,:host{-webkit-text-size-adjust:100%;tab-size:4;line-height:1.5;font-family:var(--default-font-family,ui-sans-serif, system-ui, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color 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components;@layer utilities{.sr-only{clip-path:inset(50%);white-space:nowrap;border-width:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.static{position:static}.start{inset-inline-start:var(--spacing)}}:root{--paper:#f6f2e9;--paper-deep:#ebe4d7;--ink:#0b1d33;--ink-soft:#45566b;--blue:#175fd3;--blue-deep:#104da9;--gold:#c99234;--line:#0b1d332e;--white:#fffdf8}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:92px}body{min-width:320px;color:var(--ink);background:linear-gradient(#0b1d3309 1px, transparent 1px), var(--paper);-webkit-font-smoothing:antialiased;background-size:100% 80px;margin:0;font-family:Microsoft YaHei,PingFang SC,Noto Sans CJK SC,Arial,sans-serif}a{color:inherit;text-decoration:none}button,summary,a{-webkit-tap-highlight-color:transparent}a:focus-visible,summary:focus-visible{outline:3px solid var(--gold);outline-offset:4px;border-radius:2px}.skip-link{z-index:100;color:var(--white);background:var(--ink);padding:10px 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p{color:var(--ink-soft);font-family:STSong,SimSun,serif;font-size:22px;line-height:1.55}.section{border-bottom:1px solid var(--line);padding:104px 72px;scroll-margin-top:86px}.section-heading{grid-template-columns:minmax(300px,.85fr) minmax(300px,.65fr);justify-content:space-between;align-items:end;gap:70px;margin-bottom:54px;display:grid}.section-index{margin:0 0 16px}.section-heading h2,.story-intro h2,.faq-intro h2{letter-spacing:-.045em;margin:0;font-family:STSong,SimSun,Songti SC,serif;font-size:clamp(40px,4vw,62px);line-height:1.12}.section-heading>p,.story-intro>p:last-of-type,.faq-intro>p:last-of-type{max-width:570px;color:var(--ink-soft);margin:0;font-size:15px;line-height:1.9}.course-grid,.project-grid,.resource-grid{border:1px solid var(--line);background:var(--white);grid-template-columns:repeat(3,1fr);display:grid}.course-card,.project-card,.resource-card{border-right:1px solid 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var(--line);min-height:210px;padding:34px 48px}.story-list article:last-child{border-bottom:0}.story-list article>span{color:var(--blue);letter-spacing:.08em;font-family:Georgia,serif;font-size:12px}.story-list h3{margin:20px 0 10px;font-size:26px}.feedback-section{background:var(--paper-deep)}.feedback-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px;display:grid}.feedback-card{border:1px solid var(--line);background:var(--white);min-width:0;margin:0;padding:28px}.feedback-image-link{background:#ededed;display:block}.feedback-image-link img{object-fit:contain;width:100%;height:500px;display:block}.feedback-card h3{margin:24px 0 12px;font-family:STSong,SimSun,serif;font-size:28px;line-height:1.3}.feedback-card p{color:var(--ink-soft);margin:0;font-size:1rem;line-height:1.8}.image-detail-link{min-height:44px;color:var(--blue);text-underline-offset:5px;align-items:center;gap:8px;margin-top:12px;font-size:.875rem;font-weight:700;text-decoration:underline;display:inline-flex}.resources-section{background:var(--white)}.resource-grid{background:0 0}.resource-card{background:var(--paper);min-height:290px;transition:background .18s}.resource-card:hover{background:#eaf1fb}.resource-card>span{color:#6f7d8d;letter-spacing:.1em;justify-content:space-between;font-size:11px;font-weight:800;display:flex}.resource-card>span:after{color:var(--blue);content:"↗";font-size:20px}.resource-card h3{margin-top:55px}.resource-card strong{color:var(--blue);font-size:12px;position:absolute;bottom:34px;left:38px;right:38px}.faq-section{background:var(--paper-deep);grid-template-columns:.72fr 1.28fr;gap:90px;display:grid}.faq-list{border-top:1px solid var(--line)}.faq-list details{border-bottom:1px solid var(--line)}.faq-list summary{cursor:pointer;grid-template-columns:55px 1fr auto;align-items:center;min-height:86px;font-family:STSong,SimSun,serif;font-size:20px;font-weight:700;list-style:none;display:grid}.faq-list summary::-webkit-details-marker{display:none}.faq-list summary span{color:var(--blue);font-family:Georgia,serif;font-size:12px}.faq-list summary:after{color:var(--blue);content:"＋";font-family:Arial,sans-serif;font-size:22px}.faq-list details[open] summary:after{content:"－"}.faq-list details p{color:var(--ink-soft);margin:-8px 42px 28px 55px;font-size:14px;line-height:1.85}.community-section{color:var(--white);background:var(--ink);border-bottom:1px solid #ffffff1f;grid-template-columns:minmax(0,1fr);align-items:center;gap:20px;padding:36px 24px 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