:root{--ink:#2a2018;--paper:#fff8ef;--wash:#f4dfc8;--accent:#c7352b;--accent2:#8b5e34;--line:color-mix(in srgb,var(--ink) 18%,transparent);--motion-ready:0}*{box-sizing:border-box}body.bulletin{margin:0;background:var(--paper);color:var(--ink);font-family:Arial,"Noto Sans SC","Microsoft YaHei",sans-serif;line-height:1.72;letter-spacing:0}a{color:inherit}.teaboard-top{position:sticky;top:0;z-index:10;display:flex;align-items:center;justify-content:space-between;gap:18px;padding:14px clamp(18px,4vw,54px);background:color-mix(in srgb,var(--paper) 92%,transparent);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}.teaboard-mark{display:flex;align-items:center;gap:10px;text-decoration:none;font-weight:900}.teaboard-mark span{display:grid;place-items:center;width:34px;height:34px;border-radius:50%;background:var(--accent);color:#fff}.teaboard-mark span i{display:block;width:16px;height:16px;border:3px solid #fff;border-left-color:transparent;border-radius:50%;transform:rotate(-35deg)}.teaboard-nav,.teaboard-catalog-nav,.teaboard-linkrow,.teaboard-bench-nav,.teaboard-footlinks{display:flex;gap:8px;flex-wrap:wrap;align-items:center}.teaboard-nav a,.teaboard-catalog-nav a,.teaboard-linkrow a,.teaboard-bench-nav a,.teaboard-menu a{padding:8px 10px;text-decoration:none;font-weight:800;font-size:14px}.teaboard-menu{display:none}.teaboard-menu summary{cursor:pointer;font-weight:900}.teaboard-menu nav{position:absolute;right:16px;top:58px;display:grid;gap:4px;padding:12px;min-width:180px;background:var(--paper);border:1px solid var(--line);box-shadow:0 16px 36px #0002}.teaboard-home{overflow:hidden}.teaboard-spread,.teaboard-paper-row,.teaboard-night-stack,.teaboard-soil,.teaboard-casefile,.teaboard-test-lane,.teaboard-note-pair{display:grid;gap:18px}.teaboard-spread,.teaboard-paper-row,.teaboard-soil,.teaboard-casefile,.teaboard-test-lane,.teaboard-note-pair,.teaboard-peel{padding:24px clamp(18px,6vw,86px)}.teaboard-paper-row,.teaboard-note-pair,.teaboard-test-lane{grid-template-columns:1fr 1fr}.teaboard-night-stack{grid-template-columns:1.1fr .9fr;padding:24px clamp(18px,6vw,86px);background:color-mix(in srgb,var(--wash) 70%,var(--paper))}.teaboard-soil{grid-template-columns:.9fr 1.1fr;background:color-mix(in srgb,var(--wash) 72%,var(--paper))}.teaboard-lesson-flow{list-style:none;margin:0;padding:24px clamp(18px,6vw,86px);display:grid;gap:18px}.teaboard-lesson-flow>li{display:block}.teaboard-journey-nav{display:block}.teaboard-hero{position:relative;display:grid;grid-template-columns:minmax(0,1.05fr) minmax(320px,.95fr);gap:28px;align-items:center;padding:46px clamp(18px,6vw,86px) 34px;min-height:560px}.teaboard-hero h1{font-size:56px;line-height:1.03;margin:10px 0 18px;max-width:930px}.teaboard-hero-title{display:grid;gap:7px}.teaboard-hero-title span,.teaboard-hero-title em,.teaboard-hero-title small{display:block}.teaboard-hero-title em{font-style:normal;font-size:30px;line-height:1.16;color:var(--accent)}.teaboard-hero-title small{display:flex;gap:8px;flex-wrap:wrap;align-items:center;font-size:17px;line-height:1.35;font-weight:900;color:color-mix(in srgb,var(--ink) 68%,var(--paper))}.teaboard-hero-title small i{display:inline-block;width:4px;height:4px;border-radius:50%;background:var(--accent2)}.teaboard-hero p,.teaboard-doc-head p,.teaboard-article p{font-size:17px;color:color-mix(in srgb,var(--ink) 70%,var(--paper));max-width:860px}.teaboard-hero ul,.teaboard-hero ol{padding-left:20px;font-weight:800}.teaboard-hero progress,.teaboard-hero meter{width:min(360px,100%);height:14px;accent-color:var(--accent)}.teaboard-kicker{font-size:12px;font-weight:900;letter-spacing:.08em;text-transform:uppercase;color:var(--accent);margin:0 0 8px}.teaboard-cta{display:flex;gap:12px;flex-wrap:wrap;margin-top:22px}.teaboard-cta a,.teaboard-plain-link,.teaboard-article-nav a{display:inline-flex;align-items:center;justify-content:center;min-height:42px;padding:10px 14px;border:1px solid var(--line);background:var(--accent);color:#fff;text-decoration:none;font-weight:900}.teaboard-cta a:nth-child(2),.teaboard-plain-link,.teaboard-article-nav a:nth-child(even){background:transparent;color:var(--ink)}.teaboard-visual img,.teaboard-article img,.teaboard-article-grid img{max-width:100%;height:auto;display:block}.teaboard-now{position:absolute;right:clamp(18px,5vw,64px);bottom:26px;max-width:290px;padding:14px;border:1px solid var(--line);background:color-mix(in srgb,var(--paper) 86%,white);box-shadow:0 18px 48px #0001}.teaboard-hero-copy .teaboard-now{position:static;margin-top:18px;max-width:360px}.teaboard-now b,.teaboard-now span{display:block}.teaboard-now span{font-size:13px;color:var(--accent);font-weight:900}.teaboard-pinboard,.teaboard-milepost,.teaboard-file-tab,.teaboard-zest{padding:12px 14px;border:1px solid var(--line);background:color-mix(in srgb,var(--paper) 82%,white);font-weight:900}.teaboard-announce-strip,.teaboard-article-pick,.teaboard-history,.teaboard-doc,.teaboard-article{padding:46px clamp(18px,6vw,86px)}.teaboard-announce-strip,.teaboard-article-pick{display:grid;grid-template-columns:1.05fr repeat(3,minmax(0,1fr));gap:16px;align-items:start}.teaboard-announce-strip article,.teaboard-announce-strip section,.teaboard-announce-strip details,.teaboard-article-pick article,.teaboard-process article,.teaboard-article-grid article,.teaboard-path-list article{border:1px solid var(--line);background:color-mix(in srgb,var(--paper) 88%,white);padding:18px}.teaboard-announce-strip details summary{font-weight:900;cursor:pointer}.teaboard-announce-strip time,.teaboard-article-pick time,.teaboard-article-grid time{color:var(--accent);font-weight:900;font-size:13px}.teaboard-announce-strip h2,.teaboard-article-pick h2,.teaboard-history h2{font-size:34px;line-height:1.16;margin:4px 0 12px}.teaboard-article-pick h3,.teaboard-announce-strip h3,.teaboard-article-grid h2{margin:8px 0;line-height:1.26}.teaboard-history{background:var(--wash)}.teaboard-history div,.teaboard-history nav,.teaboard-crosslinks{display:flex;gap:10px;flex-wrap:wrap}.teaboard-history a,.teaboard-crosslinks a{padding:8px 11px;border:1px solid var(--line);text-decoration:none;background:var(--paper);font-weight:800}.teaboard-doc,.teaboard-article{max-width:1240px;margin:auto}.teaboard-doc-head{max-width:900px;margin-bottom:28px}.teaboard-doc h1,.teaboard-article h1{font-size:46px;line-height:1.1;margin:8px 0 14px}.teaboard-process{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.teaboard-process span{display:inline-grid;place-items:center;width:38px;height:38px;border-radius:50%;background:var(--accent);color:#fff;font-weight:900}.teaboard-process h2{margin:14px 0 8px}.teaboard-process li{margin:6px 0}.teaboard-notice-list{display:grid;gap:14px}.teaboard-notice-list article{border-left:5px solid var(--accent);padding:18px;background:color-mix(in srgb,var(--paper) 86%,white);box-shadow:0 12px 30px #0001}.teaboard-article-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.teaboard-article article{max-width:940px}.teaboard-lead{font-size:19px}.teaboard-article figure{margin:26px 0;padding:12px;border:1px solid var(--line);background:color-mix(in srgb,var(--paper) 86%,white)}.teaboard-article figcaption{font-size:13px;color:color-mix(in srgb,var(--ink) 55%,var(--paper));margin-top:8px}.teaboard-article section{margin:30px 0}.teaboard-article-nav{display:flex;gap:10px;flex-wrap:wrap;margin-top:28px}.teaboard-path-list{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}.teaboard-path-list code{display:inline-block;margin-bottom:10px;padding:3px 6px;background:var(--wash)}.teaboard-foot{display:flex;justify-content:space-between;gap:20px;align-items:flex-start;padding:30px clamp(18px,6vw,86px);border-top:1px solid var(--line);background:color-mix(in srgb,var(--paper) 88%,var(--ink));color:color-mix(in srgb,var(--ink) 90%,#fff)}.teaboard-foot nav{display:flex;gap:10px;flex-wrap:wrap}.teaboard-foot a{text-decoration:none;font-weight:800}@media(prefers-reduced-motion:no-preference){[data-motion]{transform:translate(calc(var(--mx,0)*7px),calc(var(--my,0)*5px));transition:transform .18s ease}.teaboard-visual{animation:teaboardFloat 7s ease-in-out infinite}@keyframes teaboardFloat{0%,100%{transform:translateY(0)}50%{transform:translateY(-8px)}}}
body.bulletin{background:linear-gradient(#fff7ed,#fffaf4)}.teaboard-top,.teaboard-hero,.teaboard-announce-strip article,.teaboard-article-pick article{border-radius:0}.teaboard-hero{background:repeating-linear-gradient(0deg,#fff7ed 0 26px,#fff0df 27px 28px)}.teaboard-cards{display:grid;grid-template-columns:repeat(4,1fr) 1.2fr;gap:14px;padding:22px clamp(18px,6vw,86px);background:var(--accent);color:#fff}.teaboard-cards a,.teaboard-cards blockquote{padding:18px;border:2px dashed #ffffff99;text-decoration:none;background:#ffffff12}.teaboard-cards span{font-weight:900}.teaboard-cards b{display:block;font-size:22px;margin:10px 0}.teaboard-cards blockquote{margin:0;font-size:19px}
.teaboard-hero{overflow:hidden;isolation:isolate}.teaboard-hero>*{position:relative;z-index:1}.teaboard-hero:before,.teaboard-hero:after{content:"";position:absolute;pointer-events:none;z-index:0}.teaboard-visual{overflow:hidden}.teaboard-visual img{width:100%;aspect-ratio:16/9;object-fit:cover;filter:drop-shadow(0 22px 34px #00000018)}.teaboard-article figure img{width:100%;aspect-ratio:16/9;object-fit:cover}.teaboard-article-grid article{overflow:hidden}.teaboard-announce-strip article,.teaboard-article-pick article,.teaboard-process article,.teaboard-article-grid article{transition:transform .18s ease,box-shadow .18s ease}.teaboard-announce-strip article:hover,.teaboard-article-pick article:hover,.teaboard-article-grid article:hover{transform:translateY(-3px)}.teaboard-hero:before{inset:18px;background:radial-gradient(circle at 20px 20px,#8b5e3430 0 3px,transparent 4px);background-size:34px 34px;opacity:.85}.teaboard-cards a:nth-child(2n),.teaboard-announce-strip article:nth-child(2n){transform:rotate(-1.5deg)}.teaboard-cards a:nth-child(2n+1),.teaboard-announce-strip article:nth-child(2n+1){transform:rotate(1deg)}.teaboard-article-pick article{position:relative;background:#fffaf2;border:2px dashed #8b5e345c}.teaboard-article-pick article:before{content:"";position:absolute;top:9px;left:14px;width:12px;height:12px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 4px #c7352b18}.teaboard-process article{background:repeating-linear-gradient(0deg,#fffaf2 0 30px,#fff1df 31px 32px)}
.teaboard-foot{display:grid;grid-template-columns:minmax(260px,1.05fr) minmax(170px,.58fr) minmax(360px,1.35fr);gap:20px;align-items:start;padding:32px clamp(18px,6vw,86px);border-top:1px solid var(--line);background:color-mix(in srgb,var(--paper) 88%,var(--ink));color:color-mix(in srgb,var(--ink) 90%,#fff)}.teaboard-foot-brand{display:grid;gap:8px;max-width:620px}.teaboard-foot-brand strong{font-size:20px;line-height:1.25}.teaboard-foot-brand p{margin:0}.teaboard-foot-brand small{font-weight:900;color:var(--accent);letter-spacing:.08em}.teaboard-foot-tags{display:flex;gap:8px;flex-wrap:wrap;align-content:start}.teaboard-foot-tags span{display:inline-flex;align-items:center;min-height:32px;padding:6px 10px;border:1px solid var(--line);background:color-mix(in srgb,var(--paper) 76%,white);font-weight:900}.teaboard-foot-menu{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;justify-content:end}.teaboard-foot-menu div{display:grid;gap:6px;align-content:start}.teaboard-foot-menu b{font-size:12px;line-height:1.25;color:var(--accent);letter-spacing:.06em}.teaboard-foot-menu a{text-decoration:none;font-weight:800;line-height:1.35;padding:3px 0}.teaboard-foot a{text-decoration:none;font-weight:800}.teaboard-pinboard span{display:block;color:var(--accent);font-size:12px;letter-spacing:.08em;margin-bottom:4px}.teaboard-pinboard b{display:block}.teaboard-announce-strip{grid-template-columns:.72fr repeat(3,minmax(0,1fr));background:#ffe8c9;border-top:5px solid var(--accent);border-bottom:5px solid color-mix(in srgb,var(--accent) 35%,#fff);align-items:stretch}.teaboard-announce-strip article{position:relative;border:2px dashed color-mix(in srgb,var(--accent) 55%,#fff);background:#fffaf2;box-shadow:8px 8px 0 #8a4a1814}.teaboard-announce-strip article:before{content:"";position:absolute;top:8px;right:10px;width:10px;height:10px;border-radius:50%;background:var(--accent)}.teaboard-paper-row{grid-template-columns:1.28fr .72fr;background:#fffaf2;align-items:start}.teaboard-paper-row .teaboard-article-pick{display:grid;grid-template-columns:1fr;padding:24px;background:#fff;border:2px solid color-mix(in srgb,var(--accent) 42%,#fff);box-shadow:12px 12px 0 #8a4a1812}.teaboard-paper-row .teaboard-article-pick article{border-style:dashed}.teaboard-paper-row .teaboard-history{padding:24px;border-left:7px solid var(--accent);background:#fff3e2}.teaboard-foot{grid-template-columns:1fr auto 1fr;background:#fff3df;border-top:7px solid var(--accent);color:var(--ink)}.teaboard-foot-brand{padding:14px;border:2px dashed color-mix(in srgb,var(--accent) 58%,#fff);background:#fffaf3}.teaboard-foot-tags span{background:#fff;border:2px dashed var(--accent)}.teaboard-foot nav a{border-bottom:2px solid var(--accent)}
.teaboard-home,.teaboard-doc,.teaboard-article,.teaboard-article-grid,.teaboard-article-pick,.teaboard-announce-strip{min-width:0}.teaboard-home h1,.teaboard-home h2,.teaboard-home h3,.teaboard-doc h1,.teaboard-doc h2,.teaboard-doc h3,.teaboard-article h1,.teaboard-article h2,.teaboard-article h3,.teaboard-article-grid a,.teaboard-article-pick a{overflow-wrap:anywhere;word-break:break-word}
@media (max-width: 860px) {
  .teaboard-nav,.teaboard-linkrow{display:none}
  .teaboard-menu{display:block}
  .teaboard-top{gap:12px}
  .teaboard-mark{min-width:0;flex:1}
  .teaboard-mark b{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
  .teaboard-menu{margin-left:auto}
  .teaboard-hero,.teaboard-readout,.teaboard-shelf,.teaboard-cards,.teaboard-console,.teaboard-route,.teaboard-growth,.teaboard-files,.teaboard-steps,.teaboard-bench,.teaboard-citrus,.teaboard-announce-strip,.teaboard-article-pick,.teaboard-process,.teaboard-article-grid,.teaboard-path-list{grid-template-columns:1fr}
  .teaboard-hero-copy,.teaboard-visual,.teaboard-milepost,.teaboard-file-tab,.teaboard-zest{grid-column:auto;grid-row:auto}
  .teaboard-now{position:static;max-width:none;width:100%;margin-top:14px}
  .teaboard-top{padding:12px 16px}
  .teaboard-hero,.teaboard-doc,.teaboard-article{padding-left:18px;padding-right:18px}
  .teaboard-hero h1,.teaboard-doc h1,.teaboard-article h1{font-size:30px}
  .teaboard-hero-title em{font-size:22px}
  .teaboard-hero-title small{font-size:14px;gap:6px}
  .teaboard-visual{order:-1}
  .teaboard-foot{grid-template-columns:1fr;gap:14px}
  .teaboard-foot nav{justify-content:flex-start}
  .teaboard-foot-menu{grid-template-columns:1fr 1fr;justify-content:start}
}