:root{--paper:#f6f2e9;--paper-deep:#ede5d6;--ink:#17263b;--muted:#647184;--navy:#173f6d;--navy-dark:#102f54;--green:#2f7a62;--green-soft:#e1efe9;--blue-soft:#e6eef7;--card:#ffffffe0;--line:#173f6d24;--shadow:0 18px 50px #1e2d4014}*{box-sizing:border-box}html{scroll-behavior:smooth}body{min-width:320px;color:var(--ink);background:radial-gradient(circle at 8% 0%, #2f7a621f, transparent 28rem), linear-gradient(180deg, #fbf8f1 0%, var(--paper) 44%, #f2ecdf 100%);margin:0;font-family:PingFang SC,Microsoft YaHei,Noto Sans CJK SC,system-ui,sans-serif}a{color:inherit;text-decoration:none}button,input,select{font:inherit}.sr-only{clip:rect(0, 0, 0, 0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}:focus-visible{outline-offset:3px;outline:3px solid #2f7a626b}.site-shell{min-height:100vh}.site-header{z-index:20;border-bottom:1px solid var(--line);-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);background:#fbf8f1eb;position:sticky;top:0}.header-inner{justify-content:space-between;align-items:center;gap:24px;width:min(1160px,100% - 40px);min-height:72px;margin:0 auto;display:flex}.brand{align-items:center;gap:12px;font-weight:800;display:flex}.brand-mark{color:#fff;background:linear-gradient(145deg, var(--navy), var(--green));border-radius:12px;place-items:center;width:38px;height:38px;display:grid;box-shadow:0 8px 20px #173f6d33}.site-nav{align-items:center;gap:6px;display:flex}.site-nav a{min-height:44px;color:var(--muted);border-radius:999px;align-items:center;padding:0 14px;font-size:.94rem;font-weight:650;display:inline-flex}.site-nav a:hover{color:var(--navy);background:var(--blue-soft)}.page-main{width:min(1160px,100% - 40px);margin:0 auto;padding:54px 0 72px}.hero{color:#fff;background:linear-gradient(125deg,#0c2646fa,#18476ff2 62%,#2f7a62eb);border-radius:30px;padding:clamp(30px,6vw,64px);position:relative;overflow:hidden;box-shadow:0 24px 70px #12305033}.hero:after{content:"";border:1px solid #ffffff38;border-radius:50%;width:360px;height:360px;position:absolute;top:-130px;right:-90px;box-shadow:0 0 0 44px #ffffff09,0 0 0 90px #ffffff06}.hero-copy{z-index:1;max-width:780px;position:relative}.eyebrow{color:#bdd9d0;letter-spacing:.16em;text-transform:uppercase;margin:0 0 14px;font-size:.82rem;font-weight:800}.hero h1{letter-spacing:-.04em;margin:0;font-size:clamp(2.3rem,6vw,4.8rem);line-height:1.08}.hero p{color:#ffffffc7;max-width:660px;margin:22px 0 0;font-size:1.08rem;line-height:1.8}.metric-row{z-index:1;flex-wrap:wrap;gap:12px;margin-top:34px;display:flex;position:relative}.metric{background:#ffffff14;border:1px solid #ffffff26;border-radius:16px;min-width:150px;padding:15px 18px}.metric span{color:#ffffffad;font-size:.78rem;display:block}.metric strong{margin-top:5px;font-size:1.15rem;display:block}.section{margin-top:38px}.section-heading{justify-content:space-between;align-items:end;gap:20px;margin-bottom:18px;display:flex}.section-heading h2{margin:0;font-size:clamp(1.55rem,3vw,2.25rem)}.section-heading p{color:var(--muted);margin:7px 0 0;line-height:1.7}.section-count{color:var(--green);white-space:nowrap;font-weight:800}.archive-filter{color:var(--muted);align-items:center;gap:10px;margin-bottom:22px;font-weight:700;display:flex}.archive-filter select{border:1px solid var(--line);min-width:190px;min-height:44px;color:var(--ink);background:#fff;border-radius:12px;padding:0 36px 0 13px}.archive-filter button{color:#fff;background:var(--navy);cursor:pointer;border:0;border-radius:12px;min-height:44px;padding:0 17px;font-weight:750}.archive-filter button:hover{background:var(--navy-dark)}.browser-panel{border:1px solid var(--line);background:var(--card);box-shadow:var(--shadow);border-radius:24px;padding:20px}.filter-row{grid-template-columns:1fr auto;gap:12px;margin-bottom:18px;display:grid}.input-wrap{position:relative}.input-wrap:before{content:"⌕";color:var(--muted);font-size:1.35rem;position:absolute;top:10px;left:16px}.search-input,.date-select{border:1px solid var(--line);width:100%;min-height:48px;color:var(--ink);background:#fff;border-radius:14px}.search-input{padding:0 16px 0 46px}.date-select{padding:0 38px 0 14px}.search-input::placeholder{color:#929aa5}.resource-list{gap:12px;display:grid}.resource-card{border:1px solid var(--line);background:#ffffffd1;border-radius:18px;grid-template-columns:1fr auto;align-items:center;gap:22px;padding:19px 20px;transition:transform .16s,border-color .16s,box-shadow .16s;display:grid}.resource-card:hover{border-color:#2f7a6259;transform:translateY(-2px);box-shadow:0 14px 28px #1f3b4914}.resource-title{margin:0;font-size:1.03rem;line-height:1.65}.resource-meta{color:var(--muted);margin:7px 0 0;font-size:.86rem}.resource-link{color:#fff;background:var(--navy);overflow-wrap:anywhere;border-radius:12px;justify-content:center;align-items:center;gap:7px;max-width:100%;min-height:44px;padding:0 17px;font-weight:750;display:inline-flex}.resource-link:hover{background:var(--navy-dark)}.empty-state{text-align:center;border:1px dashed #173f6d38;border-radius:18px;padding:54px 20px}.empty-state strong{font-size:1.08rem;display:block}.empty-state p{color:var(--muted);margin:9px 0 0;line-height:1.7}.archive-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;display:grid}.archive-card{border:1px solid var(--line);background:var(--card);min-height:240px;box-shadow:var(--shadow);border-radius:24px;flex-direction:column;justify-content:space-between;padding:28px;display:flex}.archive-card.ai{background:linear-gradient(145deg,#eef3f9,#fbfcfd)}.archive-card.k12{background:linear-gradient(145deg,#edf5f0,#fffdfa)}.archive-label{color:var(--green);letter-spacing:.12em;font-size:.82rem;font-weight:800}.archive-card h2{margin:12px 0 8px;font-size:1.75rem}.archive-card p{color:var(--muted);margin:0;line-height:1.7}.archive-card-footer{justify-content:space-between;align-items:center;gap:12px;margin-top:30px;display:flex}.archive-count{font-weight:800}.text-link{color:var(--navy);font-weight:800}.recent-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;display:grid}.recent-panel{border:1px solid var(--line);background:#ffffffb8;border-radius:22px;padding:22px}.recent-panel h3{margin:0 0 14px}.recent-list{gap:10px;margin:0;padding:0;list-style:none;display:grid}.recent-list li{border-top:1px solid var(--line);padding-top:10px;line-height:1.55}.recent-empty{color:var(--muted)}.archive-timeline{gap:30px;display:grid}.archive-day{gap:13px;display:grid}.archive-day-heading{color:var(--navy);border-bottom:2px solid #2f7a6242;margin:0;padding:0 0 10px;font-size:1.22rem}.archive-pagination{color:var(--muted);justify-content:center;align-items:center;gap:18px;margin-top:30px;padding-top:20px;font-weight:700;display:flex}.archive-pagination a{color:var(--navy)}.archive-pagination a:hover{color:var(--green)}.archive-pagination span[aria-disabled=true]{color:#a8afb7}.site-footer{color:var(--muted);text-align:center;padding:32px 20px 44px;font-size:.88rem}@media (max-width:760px){.header-inner{flex-direction:column;align-items:flex-start;gap:8px;width:min(100% - 24px,1160px);padding:12px 0}.site-nav{width:100%;padding-bottom:3px;overflow-x:auto}.site-nav a{flex:none}.page-main{width:min(100% - 24px,1160px);padding-top:24px}.hero{border-radius:22px;padding:30px 22px}.metric{flex:1;min-width:calc(50% - 6px)}.section-heading{flex-direction:column;align-items:flex-start}.filter-row,.resource-card,.archive-grid,.recent-grid{grid-template-columns:1fr}.archive-filter{flex-direction:column;align-items:stretch}.archive-filter select,.archive-filter button,.resource-link{width:100%}}@media (prefers-reduced-motion:reduce){*,:before,:after{scroll-behavior:auto!important;transition:none!important}}