.changes-top{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px 24px}.changes-countdown{display:inline-flex;align-items:center;gap:12px;margin:0;padding:10px 20px 10px 16px;border-radius:99px;background:var(--band);color:var(--on-band);font-size:14px;line-height:1.4}.changes-countdown strong{color:var(--band-accent)}.countdown-pulse{position:relative;width:9px;height:9px;border-radius:50%;background:var(--band-accent);flex-shrink:0}.countdown-pulse:after{content:"";position:absolute;inset:-5px;border-radius:50%;border:2px solid var(--band-accent);animation:countdown-pulse 2.2s ease-out infinite}@keyframes countdown-pulse{0%{transform:scale(.5);opacity:.9}to{transform:scale(1.6);opacity:0}}.changes-hub .changes-nav{position:sticky;top:0;z-index:20;flex-wrap:nowrap;gap:6px;margin:22px 0 28px;padding:10px 0;overflow-x:auto;scrollbar-width:none;background:color-mix(in srgb,var(--paper) 92%,transparent);backdrop-filter:blur(8px);border-top:0}.changes-hub .changes-nav a{flex-shrink:0;padding:7px 14px;border-radius:99px;color:var(--muted);transition:background .2s,color .2s}.changes-hub .changes-nav a:hover{text-decoration:none;background:var(--tint-soft);color:var(--ink)}.changes-hub .changes-nav a[aria-current]{background:var(--tint);color:var(--teal-dark)}.changes-hub .changes-overview>div,.changes-hub .changes-section{scroll-margin-top:80px}.changes-hub .tab-panel{animation:changes-enter .3s ease}.changes-hub .tab-panel:focus-visible{outline:3px solid var(--band-accent);outline-offset:4px;border-radius:16px}@keyframes changes-enter{0%{transform:translateY(6px)}}.timeline-explorer{position:relative;padding-top:42px}.timeline-track{position:absolute;top:57px;left:12.5%;right:12.5%;height:3px;border-radius:3px;background:linear-gradient(to right,var(--teal) var(--today,0),var(--line) var(--today,0))}.timeline-today{left:var(--today);top:-40px;padding:2px 9px;border-radius:99px;color:var(--on-accent);font-size:11px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;white-space:nowrap}.timeline-today,.timeline-today:after{position:absolute;transform:translateX(-50%);background:var(--warning)}.timeline-today:after{content:"";left:50%;top:100%;width:2px;height:20px}.changes-hub .changes-timeline{position:relative;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px}.changes-hub .changes-timeline li{display:block;padding:0;border:0}.changes-timeline .tab{position:relative;width:100%;height:100%;min-height:0;display:flex;flex-direction:column;align-items:center;gap:6px;padding:7px 10px 12px;border:0;border-radius:12px;background:transparent;color:var(--ink);text-align:center;font-weight:400;cursor:pointer}.changes-timeline .tab:hover{background:transparent;box-shadow:none}.changes-timeline .tab:hover .timeline-dot{transform:scale(1.15);border-color:var(--teal)}.changes-timeline .tab:hover .timeline-date{color:var(--teal-dark)}.changes-timeline .tab[aria-selected=true] .timeline-date{color:var(--teal)}.changes-timeline .tab[aria-selected=true] .timeline-title{color:var(--ink)}.changes-timeline .tab[aria-selected=true]:after{content:"";position:absolute;left:50%;bottom:-22px;z-index:2;width:14px;height:14px;background:var(--on-band);border-left:1px solid var(--line);border-top:1px solid var(--line);transform:translateX(-50%) rotate(45deg)}.timeline-dot{width:18px;height:18px;margin-bottom:4px;border-radius:50%;border:3px solid var(--line-strong);background:var(--surface);transition:transform .2s,box-shadow .2s}.changes-timeline .is-past .timeline-dot{border-color:var(--teal);background:var(--teal)}.changes-timeline .tab[aria-selected=true] .timeline-dot{border-color:var(--teal);transform:scale(1.15);box-shadow:0 0 0 6px rgb(var(--teal-rgb)/13%)}.changes-hub .timeline-date{font-size:20px;line-height:1.3}.timeline-title{font-size:13px;line-height:1.45;color:var(--muted)}.timeline-detail{margin-top:14px;padding:28px 32px;border:1px solid var(--line);border-radius:16px;background:var(--surface)}.timeline-detail-date{font-size:12px;font-weight:700;color:var(--teal);letter-spacing:.04em}.timeline-detail h3{margin:4px 0 10px;font-size:22px}.changes-hub .timeline-detail p{margin:0;max-width:840px}.area-tablist{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:18px}.area-tablist .tab{display:inline-flex;align-items:center;gap:8px;min-height:42px;padding:8px 16px;border:1px solid var(--line);border-radius:99px;background:var(--surface);color:var(--ink);font-size:13px;font-weight:650;cursor:pointer}.area-tablist .tab svg{width:18px;height:18px;color:var(--teal)}.area-tablist .tab:hover{background:var(--tint-soft);border-color:var(--line-accent)}.area-tablist .tab[aria-selected=true]{background:var(--band);border-color:var(--band);color:var(--on-band)}.area-tablist .tab[aria-selected=true] svg{color:var(--band-accent)}.tab-count{display:inline-grid;place-items:center;min-width:22px;height:22px;padding:0 6px;border-radius:99px;background:var(--tint-soft);color:var(--teal-dark);font-size:11px}.tab[aria-selected=true] .tab-count{background:rgb(255 255 255/15%);color:var(--on-band)}.area-compare{display:grid;grid-template-columns:1fr 1fr;gap:16px}.area-card{padding:26px 28px;border-radius:16px}.area-rule{background:var(--warning-bg)}.area-action{background:var(--tint-soft)}.changes-hub .area-card p{margin:10px 0 0;color:var(--ink);font-size:16px}.changes-hub .changes-source-note{margin-top:16px}.changes-hub .changes-watch summary{font-size:17px;font-weight:700;cursor:pointer}.changes-hub .changes-watch[open] summary{margin-bottom:8px}.impact-details{margin:4px 0 14px}.changes-plan details summary,.impact-details summary{width:fit-content;color:var(--teal);font-size:13px;font-weight:650;cursor:pointer}.impact-details[open] summary{margin-bottom:8px}.impact-grid .impact-template{margin-top:auto;font-size:13px;font-weight:700;color:var(--teal)}.prep-progress{margin-bottom:22px;padding:22px 26px;border:1px solid var(--line);border-radius:16px;background:var(--surface)}.prep-progress-meta{display:flex;justify-content:space-between;gap:16px;margin-bottom:10px;font-size:14px}.prep-progress-meta span{color:var(--teal-dark);font-weight:700}.prep-progress .form-progress{height:8px;margin-bottom:10px}.prep-progress .form-progress::-webkit-progress-value{transition:width .4s ease}.changes-hub .prep-progress p{display:flex;flex-wrap:wrap;gap:4px 14px;margin:0;font-size:12px}.prep-reset{min-height:0;padding:0;border:0;background:none;color:var(--teal);font-size:12px;font-weight:650;text-decoration:underline;text-underline-offset:3px;cursor:pointer}.changes-hub .changes-plan{gap:12px}.changes-hub .changes-plan li{grid-template-columns:48px 1fr;padding:20px 24px;border:1px solid var(--line);border-radius:16px;background:var(--surface);transition:background .25s,border-color .25s}.changes-hub .changes-plan li.is-done{background:var(--surface-soft);border-color:var(--line-accent)}.changes-hub .changes-plan li.is-done h3{color:var(--muted);text-decoration:line-through;text-decoration-color:rgb(var(--teal-rgb)/40%)}.plan-check{position:relative;display:block;width:46px;height:46px;cursor:pointer}.plan-check input{position:absolute;inset:0;margin:0;opacity:0;cursor:pointer}.plan-check .plan-number{border:2px solid transparent;transition:background .2s,color .2s,transform .2s}.plan-check:hover .plan-number{background:var(--tint)}.plan-check input:focus-visible+.plan-number{border-color:var(--teal)}.is-done .plan-check .plan-number{background:var(--teal);color:var(--on-accent);transform:scale(1.05)}.changes-hub .changes-plan strong{margin-top:2px;color:var(--ink)}.changes-plan details,.impact-grid .impact-details{margin-top:8px;padding:0;border:0}.changes-plan details[open] summary{margin-bottom:6px}.changes-hub .changes-downloads{background:var(--surface)}.changes-hub .changes-downloads>div{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;margin-top:14px}.changes-hub .changes-downloads a{display:flex;align-items:center;gap:12px;padding:14px 16px;border:1px solid var(--line);border-radius:12px;font-weight:650;text-decoration:none;transition:border-color .2s,background .2s}.changes-hub .changes-downloads a svg{width:20px;height:20px;flex-shrink:0;color:var(--teal)}.changes-hub .changes-downloads a span:last-child{margin-left:auto;color:var(--teal);transition:transform .2s}.changes-hub .changes-downloads a:hover{border-color:var(--line-accent);background:var(--surface-soft)}.changes-hub .changes-downloads a:hover span:last-child{transform:translateX(3px)}.changes-hub .reading-intro{margin:0 0 16px;max-width:770px}.changes-article h3{display:flex;justify-content:space-between;gap:20px;margin:0 0 10px;font-size:18px;line-height:1.45}@media (max-width:700px){.changes-countdown{font-size:13px}.timeline-explorer{padding-top:40px}.timeline-track{top:55px}.changes-hub .changes-timeline{gap:4px}.changes-timeline .tab{padding:7px 2px 12px}.timeline-title{display:none}.changes-hub .timeline-date{font-size:13px}.timeline-detail{padding:22px}.area-compare,.changes-hub .changes-downloads>div{grid-template-columns:1fr}.area-card{padding:22px}.changes-hub .changes-plan li{grid-template-columns:46px 1fr;gap:14px;padding:18px}.changes-hub .plan-number{width:46px;height:46px}}@media (prefers-reduced-motion:reduce){.changes-hub .tab-panel,.countdown-pulse:after{animation:none}}