/* 校序 V9 · incremental UI refinement. No business logic, API or storage changes. */
:root { --x9-ease:cubic-bezier(.16,1,.3,1); --x9-brand:#2c65de; --x9-border:#e7ecf4; }
html.theme-light { --xu-bg:#f6f8fc; --xu-line:var(--x9-border); --xu-brand:var(--x9-brand) }
html.theme-light body { background:#f6f8fc!important }
.x-v7-header { border-color:var(--xu-line)!important;box-shadow:none!important }
.x-v7-header-inner { max-width:1230px!important }
.x-v7-header .nav-link { gap:8px!important;font-weight:680!important;transition:background-color .17s,color .17s!important }
.x-v7-header .nav-link.active { background:var(--xu-soft)!important;color:var(--xu-brand)!important;box-shadow:none!important }
.x-v7-header .nav-link.active:after { display:none!important }
.x-v7-header .nav-link .x-v9-nav-svg { width:17px;height:17px;flex:none;stroke:currentColor;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round }
.x-v7-header .nav-link .x-v9-nav-text { display:inline-block }
#app .card { box-shadow:none!important;border-color:var(--xu-line)!important }
#app .x-v8-stat { padding:15px 19px!important;min-height:79px!important }
#app .x-v8-stat-icon { display:none!important }
#app .x-v8-stat-value { font-variant-numeric:tabular-nums;letter-spacing:-.025em }
#app .x-v8-stat-grid { gap:10px }
#app .v4-hero.x-v7-home-intro { background:#326be4!important;border:1px solid #2c61d3!important;border-radius:16px!important;box-shadow:none!important }
#app .v4-hero.x-v7-home-intro:before { display:none!important }
#app .x-v8-next-card { transform:none!important;box-shadow:none!important;border-radius:12px!important }
#app .x-v7-home-footer .x-v7-task-shortcut { display:none!important }
#app .x-v8-home-columns { gap:18px }
#app .x-v7-home-grid .home-widget,#app .x-v7-home-notices { border-radius:14px!important }
#app .x-v7-notice-row:hover,#app .task-item:hover { background:var(--xu-soft)!important }
#app .v4-filters button,#app .v42-segments button,#app .x-v7-secondary button { transition:background-color .17s,color .17s,border-color .17s!important }
#app .x-v7-secondary button:focus-visible,#app .v42-day-picker button:focus-visible,#app .v4-filters button:focus-visible { outline:2px solid var(--xu-brand);outline-offset:2px }
#app .v42-day-picker button[aria-pressed="true"],#app .v42-segments button[aria-pressed="true"] { font-weight:750 }
#app .task-context-source { max-width:100%;overflow-wrap:anywhere }
#app :is(.primary,.secondary,.filter-btn):active:not(:disabled) { transform:scale(.985) }
#app .x-v8-academic-empty { border-radius:13px!important }
#app .x-v8-academic-empty-icon { background:transparent!important }
#app :is(button,a,summary) { touch-action:manipulation }
.editor::backdrop { background:rgba(13,25,45,.42);backdrop-filter:blur(2px) }
@media(min-width:791px){
 .x-v7-header .main-nav { gap:4px!important }
 .x-v7-header .nav-link { min-height:42px!important;padding:9px 13px!important }
 .workspace main { padding-top:13px!important }
}
@media(max-width:790px){
 :root { --x9-bottom:calc(69px + env(safe-area-inset-bottom,0px)) }
 .x-v7-header { position:sticky;top:0;z-index:90;backdrop-filter:none!important;-webkit-backdrop-filter:none!important;background:var(--xu-surface)!important }
 .x-v7-header-inner { display:flex!important;align-items:center!important;justify-content:space-between!important;grid-template-columns:none!important;grid-template-rows:none!important;min-height:61px!important;height:61px!important;padding:8px 14px!important;gap:10px!important }
 .x-v7-brand { flex:0 0 auto!important;min-width:0;gap:8px!important }
 .x-v7-brand-mark { width:34px!important;height:34px!important;border-radius:10px!important }
 .x-v8-header-actions { flex:0 0 auto;min-width:0;gap:7px!important;margin-left:auto }
 .x-v7-header .main-nav { position:fixed!important;bottom:0!important;left:0!important;right:0!important;top:auto!important;display:grid!important;grid-template-columns:repeat(5,minmax(0,1fr))!important;gap:0!important;align-items:stretch!important;width:100%!important;min-width:0!important;height:var(--x9-bottom)!important;margin:0!important;padding:7px 10px max(6px,env(safe-area-inset-bottom,0px))!important;overflow:visible!important;border-top:1px solid var(--xu-line);background:var(--xu-surface)!important;box-shadow:0 -5px 22px rgba(20,38,73,.035)!important;z-index:95!important;overscroll-behavior:contain }
 .x-v7-header .main-nav .nav-link { display:flex!important;flex-direction:column!important;align-items:center!important;justify-content:center!important;min-width:0!important;min-height:54px!important;border-radius:11px!important;gap:4px!important;padding:5px 2px!important;font-size:10.5px!important;line-height:1.15!important;background:transparent!important;white-space:nowrap!important }
 .x-v7-header .main-nav .nav-link.active { background:var(--xu-soft)!important }
 .x-v7-header .main-nav .nav-link .x-v9-nav-svg { width:21px!important;height:21px!important }
 .x-v7-header .main-nav .nav-link:active { transform:scale(.97) }
 .workspace .topbar { min-height:42px!important;padding:3px 14px!important }
 .workspace main { padding:12px 14px calc(var(--x9-bottom) + 28px)!important }
 .toast { bottom:calc(var(--x9-bottom) + 14px)!important }
 #app .x-v8-stat-grid { grid-template-columns:repeat(2,minmax(0,1fr))!important;gap:9px!important }
 #app .x-v8-stat { min-height:70px!important;padding:13px 14px!important }
 #app .x-v8-stat:nth-child(3) { grid-column:1/-1;min-height:60px!important;display:flex!important;align-items:center;gap:16px }
 #app .x-v8-stat:nth-child(3) .x-v8-stat-value { margin-left:auto }
 #app .x-v8-stat:nth-child(3) .x-v8-stat-value small { display:inline;margin:0 0 0 6px }
 #app .v4-hero.x-v7-home-intro { padding:19px 17px!important }
 #app .x-v7-home-courses { border-radius:11px!important }
 #app .x-v7-home-footer { margin-top:10px!important }
 #app .v42-day-picker { scrollbar-width:none;overscroll-behavior-x:contain }
 #app .v42-day-picker button { min-width:41px!important }
 #app .x-v7-secondary { scrollbar-width:none }
 #app .x-v8-academic-intro { flex-wrap:wrap }
 #app .x-v8-academic-pill { white-space:normal }
 #app .v4-task-toolbar { align-items:center }
 #app .v4-task-list { padding:13px!important }
 #app .task-context { flex-wrap:wrap;gap:6px }
 .editor { max-width:min(95vw,520px) }
}
@media(max-width:360px){
 .x-v7-header-inner { padding-left:9px!important;padding-right:9px!important }
 .x-v7-header .main-nav { padding-left:5px!important;padding-right:5px!important }
 .x-v7-header .main-nav .nav-link { font-size:10px!important }
 #app .x-v8-stat:nth-child(3) { display:block!important }
 #app .x-v8-stat:nth-child(3) .x-v8-stat-value { margin:4px 0 0 }
}
@media(prefers-reduced-motion:no-preference){
 #app > :first-child { animation:none!important }
 html.x-v9-page-changing #app > :first-child { animation:x-v9-enter .22s var(--x9-ease) both!important }
 @keyframes x-v9-enter { from{opacity:.84;transform:translateY(3px)} to{opacity:1;transform:none} }
}
@media(prefers-reduced-motion:reduce){
 html.x-v9-page-changing #app > :first-child { animation:none!important }
 .x-v7-header .nav-link,#app button { transition:none!important }
 .editor::backdrop { backdrop-filter:none!important }
}


/* V9.1: compact, data-first daily overview. No simulated academic data. */
#app .v4-hero.x-v7-home-intro { padding:20px 22px!important;min-height:0!important }
#app .v4-hero.x-v7-home-intro .x-v7-home-head { max-width:none!important }
#app .v4-hero.x-v7-home-intro h1 { letter-spacing:-.02em }
#app .v4-hero.x-v7-home-intro .x-v7-today-stats { margin-top:10px!important }
#app .x-v91-next-area { margin-top:13px }
#app .x-v91-next-summary {
 width:100%;display:grid;grid-template-columns:76px minmax(0,1fr) minmax(0,1.4fr) 16px;
 align-items:center;gap:10px;min-height:52px;text-align:left;
 border:1px solid #ffffff45;border-radius:11px;padding:10px 14px;
 background:#ffffff18;color:#fff;box-shadow:none;transition:background-color .16s ease;
}
#app .x-v91-next-summary:hover,#app .x-v91-next-summary:focus-visible { background:#ffffff2b }
#app .x-v91-next-summary .x-v91-next-kicker { font-size:11px;opacity:.88 }
#app .x-v91-next-summary strong { font-size:14px;min-width:0;overflow-wrap:anywhere }
#app .x-v91-next-summary .x-v91-next-meta { font-size:12px;opacity:.9;min-width:0;overflow-wrap:anywhere }
#app .x-v91-next-summary .x-v91-next-arrow { font-size:22px;font-weight:400;line-height:1;text-align:right }
#app .x-v91-next-empty { display:flex;align-items:center;gap:12px;justify-content:space-between;
 min-height:45px;padding:8px 13px;border:1px solid #ffffff40;border-radius:10px;background:#ffffff14;font-size:12px;color:#f7faff }
#app .x-v91-next-empty button { background:transparent;border:0;color:#fff;font-weight:750;padding:7px;min-height:34px }
#app .x-v91-course-empty { display:flex;flex-direction:column;gap:8px;align-items:flex-start }
#app .x-v91-course-empty strong { color:var(--xu-ink);font-weight:750 }
#app .x-v91-course-empty span { font-size:12px;color:var(--xu-muted);line-height:1.6 }
#app .x-v91-course-empty .secondary { min-height:38px;padding:8px 13px }
@media(max-width:790px){
 #app .v4-hero.x-v7-home-intro { padding:16px!important }
 #app .v4-hero.x-v7-home-intro h1 { font-size:23px!important }
 #app .x-v91-next-summary { grid-template-columns:minmax(0,1fr) 22px;gap:4px 10px;padding:10px 12px }
 #app .x-v91-next-summary .x-v91-next-kicker { grid-column:1;grid-row:1 }
 #app .x-v91-next-summary strong { grid-column:1;grid-row:2 }
 #app .x-v91-next-summary .x-v91-next-meta { grid-column:1;grid-row:3;font-size:11px }
 #app .x-v91-next-summary .x-v91-next-arrow { grid-column:2;grid-row:1/span 3;align-self:center }
 #app .x-v8-home-columns { gap:12px!important }
}
@media(prefers-reduced-motion:reduce){
 #app .x-v91-next-summary { transition:none!important }
}


/* V9.2: mobile-safe touch hit areas for the original task controls. */
#app .v4-task-list .x-v92-task-toggle,#app .v41-study-panel .x-v92-task-toggle{display:grid;place-items:center;flex:0 0 44px;width:44px;min-height:44px;cursor:pointer;border-radius:10px}
#app .x-v92-task-toggle input[type=checkbox]{width:21px;height:21px;margin:0;accent-color:var(--xu-brand,#356bfa)}
#app .x-v92-task-toggle:focus-within{outline:2px solid var(--xu-brand,#356bfa);outline-offset:1px}
#app .v4-task-list .task-actions{display:flex;gap:5px}
#app .v4-task-list .task-actions .icon-btn{min-width:44px;min-height:44px;display:grid;place-items:center;border-radius:9px}
#app .v4-task-list .task-actions .icon-btn:active{background:var(--xu-soft,#eaf1ff)}
@media(max-width:430px){#app .v4-task-list .task-item{flex-wrap:wrap;gap:4px 10px}#app .v4-task-list .task-main{flex:1 1 calc(100% - 58px)}#app .v4-task-list .task-actions{margin-left:54px;margin-top:-2px}#app .v4-task-list .task-actions .icon-btn{min-width:44px;min-height:44px}}
@media(prefers-reduced-motion:reduce){#app .v4-task-list .task-actions .icon-btn{transition:none!important}}