/* Hallmark · pre-emit critique: P5 H5 E5 S5 R5 V4 */
/* 首页关键样式：工具工作区的历史样式仅在带 page/tool 参数时按需加载。 */
*{box-sizing:border-box}html,body{overflow-x:clip}body{margin:0;background:var(--color-paper);color:var(--color-ink);font-family:var(--font-body);font-size:15px;line-height:1.65}button,input,select,textarea{font:inherit}[hidden]{display:none!important}.app-shell{width:100%;min-height:100vh}.site-main{width:100%;margin:0;padding:0}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0)}
.top-nav-caret{color:var(--color-muted);font-size:11px;transition:transform .16s ease}.site-nav-menu{position:relative}.site-nav-menu::after{content:"";position:absolute;inset:100% 0 auto;height:8px}.site-dropdown{position:absolute;top:calc(100% + 7px);left:50%;z-index:80;display:none;width:190px;padding:6px;transform:translateX(-50%);border:1px solid var(--color-line-strong);border-radius:9px;background:var(--color-paper);box-shadow:0 12px 30px rgba(31,45,72,.15)}.site-nav-menu>.site-nav-link[aria-expanded="true"]+.site-dropdown{display:grid;gap:2px}.site-dropdown a,.site-dropdown button{display:flex;align-items:center;width:100%;min-height:44px;padding:7px 10px;border:0;border-radius:7px;background:transparent;color:var(--color-body);text-align:left;text-decoration:none;cursor:pointer}.site-dropdown a:hover,.site-dropdown button:hover{background:var(--color-brand-soft);color:var(--color-brand-strong)}
#homePanel{overflow-x:clip;background:var(--color-paper)}.gh-hero{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(340px,.85fr);gap:var(--space-2xl);max-width:1248px;margin:0 auto;padding:72px 40px 96px}.gh-hero-copy{min-width:0;padding-top:16px}.gh-overline{display:block;margin-bottom:var(--space-lg);color:var(--color-brand);font-size:13px;font-weight:700;letter-spacing:.08em}.gh-hero h1{margin:0;color:var(--color-ink);font-family:Inter,"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Noto Sans",Ubuntu,Cantarell,"Helvetica Neue",sans-serif;font-size:50px;font-weight:700;line-height:1.15;letter-spacing:-.5px;overflow-wrap:anywhere}.gh-hero h1 span{color:var(--color-brand)}.gh-hero-copy>p{max-width:62ch;margin:var(--space-xl) 0 0;color:var(--color-body);font-size:17px;line-height:1.8}.gh-actions{display:flex;align-items:center;gap:var(--space-md);margin-top:var(--space-xl)}.gh-primary,.gh-secondary{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:0 20px;border-radius:var(--radius-sm);font-size:14px;font-weight:700;line-height:1;text-decoration:none;cursor:pointer}.gh-primary{border:1px solid var(--color-brand);background:var(--color-brand);color:#fff}.gh-secondary{border:1px solid var(--color-line-strong);background:#fff;color:var(--color-ink)}.gh-primary:hover{background:var(--color-brand-strong)}.gh-secondary:hover{border-color:var(--color-muted);background:var(--color-surface)}.gh-primary:focus-visible,.gh-secondary:focus-visible,.gh-command :is(a,button):focus-visible,.gh-repo-list :is(a,button):focus-visible{outline:3px solid var(--color-focus);outline-offset:2px}.gh-facts{display:flex;gap:var(--space-xl);margin:48px 0 0}.gh-facts div{display:grid;gap:4px}.gh-facts dt{color:var(--color-muted);font-size:12px}.gh-facts dd{margin:0;font-size:18px;font-weight:700}
.gh-command{align-self:center;overflow:hidden;border:1px solid var(--color-line-strong);border-radius:var(--radius-md);background:#fff;box-shadow:0 28px 70px var(--color-brand-shadow)}.gh-command>header{display:grid;grid-template-columns:auto auto 1fr;align-items:center;gap:var(--space-sm);padding:18px 20px;border-bottom:1px solid var(--color-line-strong)}.gh-command>header strong{font-size:14px}.gh-command>header small{justify-self:end;color:var(--color-body);font-size:12px}.gh-status-dot{width:9px;height:9px;border-radius:50%;background:var(--color-success)}.gh-command-list{display:grid}.gh-command-list>a,.gh-command-list>button{display:grid;grid-template-columns:36px minmax(0,1fr) auto;align-items:center;gap:var(--space-md);padding:18px 20px;border:0;border-bottom:1px solid var(--color-line-strong);background:transparent;color:inherit;text-align:left;text-decoration:none;cursor:pointer}.gh-command-list>:hover{background:var(--color-canvas)}.gh-command-icon{display:grid;width:32px;height:32px;place-items:center;border:1px solid var(--color-line-strong);border-radius:6px;color:var(--color-brand);font-size:17px}.gh-command-list strong,.gh-command-list small{display:block}.gh-command-list strong{font-size:14px}.gh-command-list small{margin-top:4px;color:var(--color-body);font-size:12px}.gh-command-list b{color:var(--color-brand);font-size:12px}.gh-command>footer{display:flex;justify-content:space-between;gap:16px;padding:14px 20px;color:var(--color-body);font-size:11px}.gh-command>footer strong{color:var(--color-ink)}
.gh-workspace{display:grid;grid-template-columns:minmax(0,1.4fr) minmax(280px,.6fr);gap:var(--space-xl);max-width:1248px;margin:0 auto;padding:0 40px 104px}.gh-workspace-main,.gh-activity{min-width:0;border-top:1px solid var(--color-line-strong)}.gh-section-head{display:flex;align-items:center;justify-content:space-between;gap:var(--space-xl);padding:28px 0 20px}.gh-section-head h2,.gh-activity h2{margin:0;font-size:20px;letter-spacing:-.02em}.gh-section-head p,.gh-activity p{margin:5px 0 0;color:var(--color-muted);font-size:13px}.gh-section-head>a{color:var(--color-brand);font-size:13px;text-decoration:none}.gh-repo-list{overflow:hidden;border:1px solid var(--color-line-strong);border-radius:var(--radius-md)}.gh-repo-list>a,.gh-repo-list>button{display:grid;grid-template-columns:12px minmax(0,1fr) auto auto;align-items:center;gap:var(--space-md);width:100%;padding:20px;border:0;border-bottom:1px solid var(--color-line);background:#fff;color:var(--color-ink);text-align:left;text-decoration:none;cursor:pointer}.gh-repo-list>:last-child{border-bottom:0}.gh-repo-list>:hover{background:var(--color-surface)}.gh-repo-mark{width:10px;height:10px;border-radius:50%;background:var(--color-brand)}.gh-repo-mark.green{background:var(--color-success)}.gh-repo-mark.amber{background:var(--color-accent)}.gh-repo-copy strong,.gh-repo-copy small{display:block}.gh-repo-copy small{margin-top:4px;color:var(--color-muted);font-size:12px}.gh-repo-meta{padding:3px 8px;border:1px solid var(--color-line-strong);border-radius:999px;color:var(--color-body);font-size:11px}.gh-repo-list b{color:var(--color-brand);font-size:12px}.gh-activity>header{padding:28px 0 20px}.gh-activity ol{display:grid;margin:0;padding:0;list-style:none}.gh-activity li{position:relative;display:grid;grid-template-columns:28px minmax(0,1fr);gap:var(--space-md);padding-bottom:24px}.gh-activity li:not(:last-child)::after{content:"";position:absolute;top:28px;bottom:0;left:13px;width:1px;background:var(--color-line-strong)}.gh-activity li>span{z-index:1;display:grid;width:28px;height:28px;place-items:center;border:1px solid var(--color-line-strong);border-radius:50%;background:#fff;color:var(--color-brand);font-size:11px;font-weight:700}.gh-activity strong,.gh-activity small{display:block}.gh-activity small{margin-top:4px;color:var(--color-muted);font-size:12px}
@media(max-width:900px){.gh-hero{grid-template-columns:1fr;padding:56px 28px 72px}.gh-workspace{grid-template-columns:1fr;padding:0 28px 72px}}
@media(max-width:600px){.site-dropdown{position:static;width:100%;transform:none;box-shadow:none}.gh-hero{gap:var(--space-xl);padding:40px 16px 56px}.gh-hero-copy{padding-top:0}.gh-hero h1{font-size:clamp(36px,11vw,46px);line-height:1.15}.gh-hero-copy>p{font-size:15px}.gh-actions{align-items:stretch;flex-direction:column}.gh-primary,.gh-secondary{width:100%}.gh-facts{justify-content:space-between;gap:var(--space-md);margin-top:36px}.gh-command>header{grid-template-columns:auto 1fr}.gh-command>header small{grid-column:1/-1;justify-self:start}.gh-command-list>a,.gh-command-list>button{grid-template-columns:32px minmax(0,1fr);padding:16px}.gh-command-list b{grid-column:2}.gh-command>footer{align-items:flex-start;flex-direction:column}.gh-workspace{padding:0 16px 56px}.gh-section-head{align-items:flex-start;flex-direction:column;gap:8px}.gh-repo-list>a,.gh-repo-list>button{grid-template-columns:12px minmax(0,1fr) auto;padding:16px 14px}.gh-repo-meta{display:none}}

/* Shared-token bridge for the lightweight homepage. */
.top-nav-caret{transition:transform var(--dur-fast) var(--ease-out)}
.site-dropdown{box-shadow:0 12px 30px var(--color-shadow-strong)}
.gh-primary{color:var(--color-paper)}
.gh-secondary,.gh-command,.gh-repo-list>a,.gh-repo-list>button,.gh-activity li>span{background:var(--color-paper)}
.gh-primary,.gh-secondary,.gh-command-list>a,.gh-command-list>button,.gh-repo-list>a,.gh-repo-list>button{transition:background var(--dur-fast) var(--ease-out),border-color var(--dur-fast) var(--ease-out),color var(--dur-fast) var(--ease-out),transform var(--dur-fast) var(--ease-out)}
.gh-primary:active,.gh-secondary:active,.gh-command-list>a:active,.gh-command-list>button:active,.gh-repo-list>a:active,.gh-repo-list>button:active{transform:translateY(1px)}
.gh-primary:disabled,.gh-secondary:disabled,.gh-command-list button:disabled,.gh-repo-list button:disabled{cursor:not-allowed;opacity:.55}
@media(prefers-reduced-motion:reduce){.top-nav-caret,.gh-primary,.gh-secondary,.gh-command-list>a,.gh-command-list>button,.gh-repo-list>a,.gh-repo-list>button{transition:none}.gh-primary:active,.gh-secondary:active,.gh-command-list>a:active,.gh-command-list>button:active,.gh-repo-list>a:active,.gh-repo-list>button:active{transform:none}}
.home-announcement{max-width:1168px;margin:20px auto 0;padding:12px 16px;border:1px solid var(--color-line-strong);border-radius:var(--radius-sm);background:var(--color-brand-soft);color:var(--color-ink);font-size:13px}.home-recommendations{max-width:1168px;margin:-48px auto 80px;padding:0}.home-recommendations>header{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px}.home-recommendations h2{margin:0;font-size:20px}.home-recommendations p{margin:4px 0 0;color:var(--color-muted);font-size:13px}.home-recommendations header>a{color:var(--color-brand);text-decoration:none}.home-recommendations>div{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));border:1px solid var(--color-line-strong);border-radius:var(--radius-md);overflow:hidden}.home-recommendations>div>a{display:grid;gap:5px;min-width:0;padding:18px;border-right:1px solid var(--color-line-strong);border-bottom:1px solid var(--color-line-strong);color:var(--color-ink);text-decoration:none}.home-recommendations>div>a:nth-child(3n){border-right:0}.home-recommendations strong{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.home-recommendations small{color:var(--color-muted)}@media(max-width:900px){.home-announcement{margin:16px 28px 0}.home-recommendations{margin:-36px 28px 64px}.home-recommendations>div{grid-template-columns:repeat(2,minmax(0,1fr))}.home-recommendations>div>a:nth-child(3n){border-right:1px solid var(--color-line-strong)}.home-recommendations>div>a:nth-child(2n){border-right:0}}@media(max-width:600px){.home-announcement{margin:12px 16px 0}.home-recommendations{margin:-24px 16px 48px}.home-recommendations>header{align-items:flex-start;gap:8px;flex-direction:column}.home-recommendations>div{grid-template-columns:1fr}.home-recommendations>div>a{border-right:0}}

/* Home-only visual refinement: soft lavender atmosphere, without touching tutorial views. */
#homePanel{background:linear-gradient(180deg,#fbfaff 0%,#fff 58%)}
#homePanel .gh-hero{position:relative;isolation:isolate;border-radius:28px;background:linear-gradient(180deg,#e9ddff 0%,#f1eaff 32%,#faf8ff 68%,#fff 100%)}
#homePanel .gh-command{border-color:#e8e2f8;background:linear-gradient(145deg,#fff 0%,#f7f4ff 100%);box-shadow:0 22px 56px rgba(111,91,173,.12)}
#homePanel .gh-command>header,#homePanel .gh-command-list>a,#homePanel .gh-command-list>button{border-color:rgba(129,111,177,.14)}
#homePanel .gh-command-list>a:hover,#homePanel .gh-command-list>button:hover{background:rgba(235,230,250,.55)}
#homePanel .gh-command-icon{border-color:#e8e2f8;background:rgba(238,233,255,.72);color:#7358cf}
#homePanel .gh-workspace-main,#homePanel .gh-activity{border-color:#e9e6f1}
#homePanel .gh-repo-list{border-color:#e8e5ef;border-radius:14px;box-shadow:0 8px 28px rgba(53,48,77,.035)}
#homePanel .gh-repo-list>a,#homePanel .gh-repo-list>button{border-color:#efedf4}
#homePanel .gh-repo-list>a:hover,#homePanel .gh-repo-list>button:hover{background:#faf9fd}
@media(max-width:900px){#homePanel .gh-hero{border-radius:22px}}
@media(max-width:600px){#homePanel .gh-hero{border-radius:18px;background:linear-gradient(180deg,#e9ddff 0%,#f1eaff 32%,#faf8ff 68%,#fff 100%)}}

/* Match the shared wide content frame used across the study room. */
.gh-hero,.gh-workspace,.home-announcement,.home-recommendations{box-sizing:border-box;width:min(var(--site-frame,1100px),calc(100% - 48px));max-width:var(--site-frame,1100px)}

/* Keep home and online-tool pages scrollable without the viewport scrollbar. */
html:is([data-initial-site-view="home"],[data-initial-site-view="tool"]),
html:is([data-initial-site-view="home"],[data-initial-site-view="tool"]) body{scrollbar-width:none}
html:is([data-initial-site-view="home"],[data-initial-site-view="tool"])::-webkit-scrollbar,
html:is([data-initial-site-view="home"],[data-initial-site-view="tool"]) body::-webkit-scrollbar{display:none;width:0;height:0}

/* Desktop home: keep all existing entries within one screen, without clipping. */
@media(min-width:1100px) and (min-height:700px){
  #homePanel .gh-hero{padding:clamp(16px,calc(12dvh - 76px),72px) 40px clamp(16px,calc(9dvh - 56px),64px)}
  #homePanel .gh-hero-copy{padding-top:0}
  #homePanel .gh-overline{margin-bottom:16px}
  #homePanel .gh-hero h1{font-size:clamp(38px,4.6dvh,50px)}
  #homePanel .gh-hero-copy>p{margin-top:16px;font-size:15px;line-height:1.7}
  #homePanel .gh-actions{margin-top:16px}
  #homePanel .gh-facts{margin-top:16px}
  #homePanel .gh-command>header{padding:12px 20px}
  #homePanel .gh-command-list>a,#homePanel .gh-command-list>button{padding:12px 20px}
  #homePanel .gh-command>footer{padding:10px 20px}
  #homePanel .gh-workspace{padding-bottom:12px}
  #homePanel .gh-section-head,#homePanel .gh-activity>header{padding:16px 0 12px}
  #homePanel .gh-repo-list>a,#homePanel .gh-repo-list>button{padding:12px 20px}
  #homePanel .gh-activity li{padding-bottom:12px}
  #homePanel .gh-activity li:last-child{padding-bottom:0}
}
@media(min-width:1100px) and (min-height:700px) and (max-height:760px){
  #homePanel .gh-hero{padding-block:12px}
  #homePanel .gh-overline{margin-bottom:12px}
  #homePanel .gh-hero-copy>p,#homePanel .gh-actions,#homePanel .gh-facts{margin-top:12px}
  #homePanel .gh-repo-list>a,#homePanel .gh-repo-list>button{padding-block:10px}
  #homePanel .gh-activity li{padding-bottom:8px}
}

/* GitHub-inspired home simplification: one clear action area, one content list. */
#homePanel .gh-hero{gap:48px;padding:56px 40px 64px}
#homePanel .gh-hero-copy{align-self:center}
#homePanel .gh-command{box-shadow:0 12px 36px rgba(31,35,40,.08)}
#homePanel .gh-command>footer{display:none}
#homePanel .gh-workspace{grid-template-columns:1fr;padding:56px 40px 104px}
#homePanel .gh-workspace-main{border-top-color:#d8dee4}
#homePanel .gh-section-head{padding-top:32px}
@media(max-width:900px){#homePanel .gh-hero{padding:44px 28px 56px}#homePanel .gh-workspace{padding:40px 28px 72px}}
@media(max-width:600px){#homePanel .gh-hero{padding:36px 16px 44px}#homePanel .gh-workspace{padding:32px 16px 56px}}

/* Home refinement: compact study workbench with a tighter first-screen rhythm. */
html[data-initial-site-view="home"],html[data-initial-site-view="home"] body{min-height:100%;background:#f7f9fc}
#homePanel{min-height:calc(100vh - 72px);padding:20px 0 72px;background:#f7f9fc}
#homePanel .gh-hero{gap:52px;padding:44px 40px 46px;border:1px solid #e7e2f2;border-radius:20px;background:linear-gradient(135deg,#f1ebff 0%,#f8f5ff 48%,#fff 100%);box-shadow:0 12px 36px rgba(58,48,88,.045)}
#homePanel .gh-hero-copy{padding:2px 0}
#homePanel .gh-overline{margin-bottom:14px;font-size:12px;letter-spacing:.06em}
#homePanel .gh-hero h1{max-width:620px;font-size:46px;line-height:1.14;letter-spacing:-1.1px}
#homePanel .gh-hero-copy>p{max-width:580px;margin-top:18px;font-size:15px;line-height:1.75}
#homePanel .gh-actions{margin-top:20px}
#homePanel .gh-primary,#homePanel .gh-secondary{min-height:42px;padding-inline:20px;border-radius:8px}
#homePanel .gh-command{border-color:#e3ddef;border-radius:14px;background:rgba(255,255,255,.84);box-shadow:0 14px 36px rgba(57,46,91,.08);backdrop-filter:blur(10px)}
#homePanel .gh-command>header{padding:14px 18px}
#homePanel .gh-command-list>a,#homePanel .gh-command-list>button{padding:14px 18px}
#homePanel .gh-command-icon{width:34px;height:34px;border-radius:8px}
#homePanel .gh-workspace{padding:26px 40px 0}
#homePanel .gh-workspace-main{border-top:0}
#homePanel .gh-section-head{padding:0 0 16px}
#homePanel .gh-section-head h2{font-size:19px}
#homePanel .gh-repo-list{border-radius:12px;background:#fff;box-shadow:0 8px 24px rgba(45,50,70,.04)}
#homePanel .gh-repo-list>a,#homePanel .gh-repo-list>button{min-height:70px;padding:14px 18px}
#homePanel .gh-repo-copy strong{font-size:14px}
#homePanel .gh-repo-copy small{margin-top:2px}
@media(max-width:900px){#homePanel{padding-top:16px}#homePanel .gh-hero{gap:28px;padding:38px 28px 42px}#homePanel .gh-workspace{padding:24px 28px 0}}
@media(max-width:600px){#homePanel{padding:12px 0 48px}#homePanel .gh-hero{padding:30px 20px 32px;border-radius:16px}#homePanel .gh-hero h1{font-size:clamp(34px,10.5vw,42px)}#homePanel .gh-actions{flex-direction:row}#homePanel .gh-primary,#homePanel .gh-secondary{width:auto;flex:1}#homePanel .gh-workspace{padding:22px 16px 0}#homePanel .gh-repo-list>a,#homePanel .gh-repo-list>button{padding:13px 12px}}

/* Hallmark · homepage: calm learning workbench with a clear lane below navigation menus. */
#homePanel{padding:24px 0 72px;background:linear-gradient(180deg,var(--color-surface) 0 540px,var(--color-paper) 540px 100%)}
#homePanel .gh-hero{align-items:end;grid-template-columns:minmax(0,1.08fr) minmax(350px,.92fr);gap:48px;margin:0 auto;padding:156px 48px 64px;overflow:hidden;border:1px solid var(--color-line-strong);border-radius:24px;background:radial-gradient(circle at 78% 18%,color-mix(in srgb,var(--color-brand) 12%,transparent),transparent 34%),linear-gradient(135deg,var(--color-brand-soft),var(--color-paper) 62%);box-shadow:0 24px 64px color-mix(in srgb,var(--color-brand) 9%,transparent)}
#homePanel .gh-hero-copy{padding-top:0}
#homePanel .gh-overline{display:inline-flex;align-items:center;min-height:30px;margin:0 0 20px;padding:0 12px;border:1px solid color-mix(in srgb,var(--color-brand) 20%,var(--color-line));border-radius:999px;background:color-mix(in srgb,var(--color-paper) 82%,transparent);letter-spacing:.04em}
#homePanel .gh-hero h1{font-size:clamp(42px,4vw,52px);line-height:1.13}
#homePanel .gh-hero-copy>p{margin-top:20px;font-size:16px;line-height:1.75}
#homePanel .gh-actions{margin-top:24px}
#homePanel .gh-command{width:100%;border-radius:18px;background:color-mix(in srgb,var(--color-paper) 94%,var(--color-brand-soft));box-shadow:0 18px 46px color-mix(in srgb,var(--color-brand) 12%,transparent)}
#homePanel .gh-command>header{padding:16px 18px}
#homePanel .gh-command-list>a,#homePanel .gh-command-list>button{padding:16px 18px}
#homePanel .gh-workspace{grid-template-columns:1fr;gap:0;margin:0 auto;padding:42px 0 16px}
#homePanel .gh-workspace-main{border-top:0}
#homePanel .gh-section-head{padding:0 0 18px}
#homePanel .gh-repo-list{border-radius:16px;background:var(--color-paper);box-shadow:0 14px 36px color-mix(in srgb,var(--color-ink) 6%,transparent)}
@media(max-width:980px){#homePanel{padding-top:14px}#homePanel .gh-hero{grid-template-columns:1fr;gap:36px;padding:64px 28px 48px;border-radius:18px}#homePanel .gh-workspace{padding:34px 0 0}}
@media(max-width:600px){#homePanel{padding-top:8px}#homePanel .gh-hero{padding:44px 20px 36px;border-radius:14px}#homePanel .gh-hero h1{font-size:clamp(34px,10vw,42px)}#homePanel .gh-workspace{padding:30px 0 0}}