:root{--bg:#F7F4FF;--white:#fff;--soft:#EEF2FF;--title:#1B1340;--text:#2F2A4A;--muted:#5B5678;--sub:#8B86A3;--purple:#7C3AED;--lp:#A78BFA;--teal:#14B8A6;--coral:#F97316;--pink:#E11D48;--amber:#F59E0B;--indigo:#312E81;--border:rgba(124,58,237,.14);--shadow:0 16px 40px rgba(49,46,129,.10)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font-family:system-ui,-apple-system,"Segoe UI","Microsoft YaHei",sans-serif;line-height:1.75;overflow-x:hidden}a{color:inherit;text-decoration:none}img{max-width:100%;height:auto;display:block}button,input{font:inherit}.top-shell{position:fixed;inset:16px 0 auto;z-index:40;pointer-events:none}.brandbar{pointer-events:auto;max-width:1080px;height:64px;margin:auto;padding:8px 10px;display:flex;align-items:center;gap:8px;background:rgba(255,255,255,.94);border:1px solid var(--border);border-radius:999px;box-shadow:var(--shadow);backdrop-filter:blur(16px)}.nav-side{display:flex;gap:6px;flex:1}.nav-right{justify-content:flex-end}.pill{min-height:44px;display:flex;align-items:center;padding:0 13px;border:1px solid transparent;border-radius:999px;color:var(--muted);font-weight:700;font-size:14px;white-space:nowrap}.pill:hover,.pill:focus-visible,.pill.active{border-color:var(--purple);color:var(--purple);outline:none;background:#fff}.brand{width:112px;display:flex;justify-content:center;align-items:center;color:var(--indigo);font-size:20px}.brand img{max-height:38px;max-width:104px}.round-btn{width:44px;height:44px;border:0;border-radius:50%;background:var(--soft);color:var(--indigo);cursor:pointer;font-size:20px}.round-btn:focus-visible{outline:3px solid var(--lp)}.mobile-app-link{display:none}main{padding-top:112px}.wrap{width:min(1200px,calc(100% - 40px));margin:auto}.hero{display:grid;grid-template-columns:1.08fr .92fr;gap:42px;align-items:center;padding:44px 0 72px}.eyebrow{font-weight:900;letter-spacing:.14em;color:var(--purple);font-size:13px}.hero h1,.page-hero h1{margin:.25em 0;font-size:clamp(38px,7vw,76px);line-height:1.02;color:var(--title);letter-spacing:-.05em}.page-hero h1{font-size:clamp(38px,6vw,64px)}.lead{font-size:18px;color:var(--muted);max-width:760px}.actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:24px}.btn{min-height:46px;padding:0 20px;border-radius:999px;display:inline-flex;align-items:center;font-weight:800}.btn-primary{background:linear-gradient(135deg,#A78BFA 0%,#7C3AED 50%,#14B8A6 100%);color:#fff}.btn-ghost{border:1px solid var(--border);background:#fff;color:var(--indigo)}.media-slot{min-height:280px;border-radius:28px;background:linear-gradient(135deg,#EEF2FF,#fff);border:1px solid var(--border);padding:18px;display:flex;align-items:center;justify-content:center;overflow:hidden}.media-slot img{border-radius:22px;max-height:560px}.section{padding:58px 0}.section-title{display:flex;justify-content:space-between;align-items:end;gap:20px;margin-bottom:22px}.section-title h2{margin:0;font-size:clamp(28px,5vw,48px);line-height:1.08;color:var(--title)}.section-title p{max-width:560px;color:var(--muted);margin:0}.tag-track{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.tag-card,.card{background:#fff;border:1px solid var(--border);box-shadow:var(--shadow);border-radius:22px;padding:22px}.tag-card::before{content:"";display:block;width:12px;height:12px;border-radius:50%;background:var(--purple);margin-bottom:16px}.tag-card:nth-child(4n+2)::before{background:var(--teal)}.tag-card:nth-child(4n+3)::before{background:var(--coral)}.tag-card:nth-child(4n)::before{background:var(--pink)}.tag-card h3,.card h3{color:var(--title);margin:0 0 8px}.tag-card p,.card p{margin:0;color:var(--muted)}.daily{display:grid;grid-template-columns:.7fr 1.3fr;gap:24px}.number-list{display:grid;gap:10px}.number-list a{padding:16px;border-radius:18px;background:#fff;border:1px solid var(--border);font-weight:850}.number-list a span{color:var(--purple);margin-right:10px}.article-panel{background:#fff;border-radius:28px;padding:32px;border:1px solid var(--border);box-shadow:var(--shadow)}.mosaic{display:grid;grid-template-columns:1.2fr .8fr;grid-template-areas:"a b" "a c";gap:18px}.mosaic .card:nth-child(1){grid-area:a}.mosaic .card:nth-child(2){grid-area:b}.mosaic .card:nth-child(3){grid-area:c}.two-col{display:grid;grid-template-columns:1fr 1fr;gap:18px}.board-grid{columns:3;column-gap:18px}.board-grid .card{break-inside:avoid;margin-bottom:18px}.folder-list{display:grid;gap:12px}.folder{display:grid;grid-template-columns:72px 1fr auto;gap:16px;align-items:center;background:#fff;border:1px solid var(--border);border-radius:20px;padding:18px}.folder b{font-size:30px;color:var(--purple)}.rank-list{display:grid;gap:16px}.rank-row{display:grid;grid-template-columns:100px 1fr;gap:18px;align-items:start;padding:20px;border-radius:22px;background:#fff;border:1px solid var(--border)}.rank-num{font-size:62px;font-weight:950;line-height:1;color:var(--purple)}.rank-row:nth-child(2) .rank-num{color:var(--teal)}.rank-row:nth-child(3) .rank-num{color:var(--coral)}.rank-row:nth-child(4) .rank-num{color:var(--pink)}.rank-row:nth-child(5) .rank-num{color:var(--amber)}.timeline{border-left:2px solid var(--border);margin-left:13px;padding-left:28px;display:grid;gap:20px}.timeline .card{position:relative}.timeline .card::before{content:"";position:absolute;left:-39px;top:28px;width:18px;height:18px;border-radius:50%;background:var(--purple);border:4px solid var(--bg)}.page-hero{padding:40px 0 28px}.content-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}.content-grid .card{min-height:220px}.content-grid .card:nth-child(3n){background:var(--soft)}.content-note{padding:20px 24px;border-radius:20px;background:#fff7ed;border:1px solid rgba(249,115,22,.16);color:#7c2d12;margin:22px 0}.faq{display:grid;gap:14px}.faq details{background:#fff;border:1px solid var(--border);border-radius:20px;padding:18px 20px}.faq summary{font-weight:850;color:var(--title);cursor:pointer}.faq p{color:var(--muted)}.site-footer{background:#1B1340;color:#F4F0FF;margin-top:80px;padding:58px 0 100px}.footer-inner{width:min(1200px,calc(100% - 40px));margin:auto}.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:28px}.footer-brand img{max-height:42px;max-width:110px}.footer-brand strong{font-size:22px}.footer-brand span{opacity:.65}.footer-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}.footer-grid h3{color:#fff}.footer-grid a{display:block;color:#ddd7f6;padding:5px 0}.footer-note{margin-top:30px;color:#c9c1e8}.copyright{color:#9f97bf}.overlay{position:fixed;inset:0;background:rgba(27,19,64,.28);z-index:60;opacity:0;visibility:hidden;pointer-events:none;transition:.2s}.overlay.show{opacity:1;visibility:visible;pointer-events:auto}.drawer{position:fixed;z-index:70;left:50%;bottom:0;transform:translate(-50%,105%);width:min(720px,100%);max-height:78vh;overflow:auto;background:#fff;border-radius:28px 28px 0 0;padding:22px;box-shadow:0 -24px 80px rgba(49,46,129,.18);visibility:hidden;pointer-events:none;transition:.25s}.drawer.open{transform:translate(-50%,0);visibility:visible;pointer-events:auto}.drawer-head,.search-head{display:flex;align-items:center;justify-content:space-between}.drawer-logo{display:flex;align-items:center;gap:10px}.drawer-logo img{max-height:38px;max-width:110px}.drawer-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}.drawer-grid h3{color:var(--title)}.drawer-link{display:block;padding:12px;border-radius:16px}.drawer-link:hover{background:var(--soft)}.drawer-link strong,.drawer-link span{display:block}.drawer-link span{font-size:13px;color:var(--muted)}.search-layer{position:fixed;z-index:72;top:92px;left:50%;transform:translateX(-50%) translateY(-20px);width:min(760px,calc(100% - 32px));padding:22px;background:#fff;border:1px solid var(--border);border-radius:24px;box-shadow:var(--shadow);opacity:0;visibility:hidden;pointer-events:none;transition:.2s}.search-layer.open{opacity:1;visibility:visible;pointer-events:auto;transform:translateX(-50%) translateY(0)}.search-box{display:block;color:var(--muted);margin:18px 0}.search-box input{display:block;width:100%;margin-top:8px;padding:14px 16px;border:1px solid var(--border);border-radius:16px;outline:none}.search-box input:focus{border-color:var(--purple)}.preset-links{display:flex;gap:10px;flex-wrap:wrap}.preset-links a{padding:10px 14px;background:var(--soft);border-radius:999px}.locked{overflow:hidden}.mobile-dock{display:none}.feature-steps{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.feature-steps .card b{font-size:28px;color:var(--purple)}
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