:root{--bg:#F7F4FF;--paper:#fff;--soft:#EEF2FF;--ink:#1B1340;--body:#2F2A4A;--muted:#5B5678;--light:#8B86A3;--purple:#7C3AED;--purple2:#A78BFA;--teal:#14B8A6;--coral:#F97316;--rose:#E11D48;--amber:#F59E0B;--indigo:#312E81;--border:rgba(124,58,237,.14);--shadow:0 16px 40px rgba(49,46,129,.10);--radius:24px}
*{box-sizing:border-box}html{scroll-behavior:smooth;overflow-x:hidden}body{margin:0;background:var(--bg);color:var(--body);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;line-height:1.75;overflow-x:hidden}a{color:inherit;text-decoration:none}img{display:block;max-width:100%;height:auto}.skip-link{position:fixed;left:16px;top:-60px;z-index:1000;background:#fff;padding:10px 14px;border-radius:12px}.skip-link:focus{top:10px}.site-topbar{position:fixed;top:0;left:0;right:0;z-index:80;padding:12px 16px;pointer-events:none}.floating-brandbar{height:64px;max-width:1080px;margin:auto;border:1px solid rgba(124,58,237,.12);background:rgba(255,255,255,.91);backdrop-filter:blur(18px);border-radius:999px;box-shadow:0 12px 32px rgba(49,46,129,.08);display:grid;grid-template-columns:1fr auto 1fr;align-items:center;padding:6px 10px;gap:10px;pointer-events:auto}.nav-side{display:flex;align-items:center;gap:5px;min-width:0}.nav-left{justify-content:flex-end}.nav-right{justify-content:flex-start}.pill{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:0 14px;border:1px solid transparent;border-radius:999px;color:var(--muted);font-size:14px;white-space:nowrap}.pill:hover,.pill:focus-visible{background:var(--soft);color:var(--ink);outline:none}.pill.is-active{border-color:var(--purple);color:var(--purple);background:#fff}.app-pill{background:linear-gradient(135deg,#A78BFA 0%,#7C3AED 50%,#14B8A6 100%);color:#fff!important}.brand-center{display:flex;align-items:center;gap:8px}.brand-mark{height:44px;min-width:82px;max-width:132px;padding:5px 10px;display:flex;align-items:center;justify-content:center;color:var(--ink);font-size:20px}.brand-mark img{max-height:34px;width:auto}.icon-btn,.close-btn{border:0;background:var(--soft);color:var(--ink);width:44px;height:44px;border-radius:50%;cursor:pointer;display:grid;place-items:center}.icon-btn:focus-visible,.close-btn:focus-visible,a:focus-visible{outline:3px solid rgba(124,58,237,.28);outline-offset:2px}.menu-toggle{position:relative}.menu-toggle span{position:absolute;width:16px;height:2px;background:var(--ink);border-radius:4px}.menu-toggle span:first-child{transform:translateY(-4px)}.menu-toggle span:last-child{transform:translateY(4px)}.search-glyph{width:16px;height:16px;border:2px solid var(--ink);border-radius:50%;position:relative;display:inline-block}.search-glyph:after{content:"";position:absolute;width:7px;height:2px;background:var(--ink);right:-5px;bottom:-3px;transform:rotate(45deg);border-radius:3px}.mobile-app-link{display:none}.site-main{padding-top:100px}.container{width:min(1200px,calc(100% - 40px));margin:0 auto}.section{padding:54px 0}.section-tight{padding:32px 0}.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:800;letter-spacing:.08em;color:var(--purple);text-transform:uppercase}.eyebrow:before{content:"";width:9px;height:9px;border-radius:50%;background:var(--teal)}h1,h2,h3{color:var(--ink);line-height:1.15;margin:0 0 16px}h1{font-size:clamp(38px,7vw,76px);letter-spacing:-.045em}h2{font-size:clamp(27px,4vw,44px);letter-spacing:-.025em}h3{font-size:20px}.lead{font-size:clamp(17px,2vw,21px);color:var(--muted);max-width:780px}.hero-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:44px;align-items:center;min-height:560px}.hero-copy p{max-width:720px}.actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:28px}.btn{min-height:46px;padding:0 20px;border-radius:999px;display:inline-flex;align-items:center;justify-content: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(--ink)}.media-slot{margin:0;border-radius:28px;overflow:hidden;box-shadow:var(--shadow);background:#fff;aspect-ratio:4/3}.media-slot img{width:100%;height:100%;object-fit:contain;background:#fff}.media-placeholder{position:relative;background:linear-gradient(135deg,rgba(167,139,250,.28),rgba(20,184,166,.14),rgba(249,115,22,.12))}.media-placeholder:before,.media-placeholder:after{content:"";position:absolute;border-radius:50%;filter:blur(2px)}.media-placeholder:before{width:38%;aspect-ratio:1;left:10%;top:14%;background:rgba(124,58,237,.15)}.media-placeholder:after{width:28%;aspect-ratio:1;right:12%;bottom:12%;background:rgba(20,184,166,.16)}.media-placeholder span{position:absolute;left:18%;right:18%;top:46%;height:10%;border-radius:999px;background:rgba(255,255,255,.7)}.card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow)}.soft-card{background:var(--soft);border-radius:var(--radius);padding:24px}.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}.grid-4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px}.tag-track{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}.tag-item{background:#fff;border:1px solid var(--border);border-radius:20px;padding:20px;min-height:150px}.dot{display:inline-block;width:11px;height:11px;border-radius:50%;margin-right:8px}.dot.purple{background:var(--purple)}.dot.teal{background:var(--teal)}.dot.coral{background:var(--coral)}.dot.rose{background:var(--rose)}.dot.amber{background:var(--amber)}.number-layout{display:grid;grid-template-columns:280px 1fr;gap:34px;align-items:start}.number-index{position:sticky;top:100px;display:grid;gap:8px}.number-index a{padding:13px 16px;background:#fff;border:1px solid var(--border);border-radius:16px;font-weight:800}.number-index b{color:var(--purple);margin-right:8px}.prose{font-size:16px}.prose p{margin:0 0 18px}.prose .note{padding:18px 20px;background:var(--soft);border-radius:18px;border-left:4px solid var(--teal)}.mosaic{display:grid;grid-template-columns:1.15fr .85fr;grid-template-rows:auto auto;gap:20px}.mosaic .feature:first-child{grid-row:span 2}.feature{background:#fff;border-radius:28px;padding:22px;border:1px solid var(--border);box-shadow:var(--shadow)}.feature .media-slot{margin-bottom:20px}.feature p{margin-bottom:0}.split{display:grid;grid-template-columns:1fr 1fr;gap:24px}.folder-list{display:grid;gap:14px}.folder{display:grid;grid-template-columns:72px 1fr auto;gap:18px;align-items:center;background:#fff;border:1px solid var(--border);border-radius:20px;padding:18px}.folder-icon{width:58px;height:44px;border-radius:10px;background:linear-gradient(135deg,var(--purple2),var(--purple));position:relative}.folder-icon:before{content:"";position:absolute;left:7px;top:-7px;width:23px;height:10px;border-radius:6px 6px 0 0;background:var(--purple2)}.folder small{color:var(--light)}.rank-list{display:grid;gap:12px}.rank-item{display:grid;grid-template-columns:90px 1fr;gap:18px;align-items:center;padding:18px 0;border-bottom:1px solid var(--border)}.rank-num{font-size:56px;line-height:1;font-weight:900;color:var(--purple)}.rank-item:nth-child(2) .rank-num{color:var(--teal)}.rank-item:nth-child(3) .rank-num{color:var(--coral)}.rank-item:nth-child(4) .rank-num{color:var(--rose)}.rank-item:nth-child(5) .rank-num{color:var(--amber)}.timeline{position:relative;padding-left:34px}.timeline:before{content:"";position:absolute;left:10px;top:10px;bottom:10px;width:2px;background:linear-gradient(var(--purple),var(--teal),var(--coral))}.timeline-item{position:relative;margin-bottom:22px;background:#fff;border-radius:20px;padding:20px;border:1px solid var(--border)}.timeline-item:before{content:"";position:absolute;left:-31px;top:26px;width:12px;height:12px;border-radius:50%;background:var(--purple);box-shadow:0 0 0 5px var(--bg)}.status{display:inline-flex;padding:5px 10px;border-radius:999px;background:var(--soft);color:var(--purple);font-size:12px;font-weight:800}.steps{counter-reset:step;display:grid;gap:16px}.step{counter-increment:step;display:grid;grid-template-columns:52px 1fr;gap:18px;background:#fff;border:1px solid var(--border);border-radius:20px;padding:20px}.step:before{content:counter(step,decimal-leading-zero);display:grid;place-items:center;width:52px;height:52px;border-radius:18px;background:var(--soft);color:var(--purple);font-weight:900}.index-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.index-list a{background:#fff;border:1px solid var(--border);border-radius:20px;padding:20px}.article-shell{max-width:900px;margin:auto}.article-shell .meta{color:var(--light);font-size:14px;margin-bottom:24px}.notice-box{background:linear-gradient(135deg,rgba(167,139,250,.18),rgba(20,184,166,.10));border:1px solid var(--border);border-radius:24px;padding:24px}.faq-list{display:grid;gap:14px}.faq-item{background:#fff;border:1px solid var(--border);border-radius:20px;padding:22px}.faq-item h2,.faq-item h3{font-size:20px}.site-footer{background:#1B1340;color:#F4F0FF;margin-top:56px;padding:54px 0 110px}.footer-inner{width:min(1200px,calc(100% - 40px));margin:auto}.footer-brand{display:flex;align-items:center;gap:18px;margin-bottom:32px}.footer-brand img{max-width:120px;max-height:42px}.footer-brand p{margin:0;line-height:1.4}.footer-brand span{opacity:.65}.footer-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:28px}.footer-grid h2{color:#fff;font-size:16px}.footer-grid a{display:block;padding:6px 0;color:#e7e1ff;font-size:14px}.footer-notice,.copyright{color:#c8c1e0;font-size:13px}.footer-notice{margin-top:32px;max-width:800px}.overlay{position:fixed;inset:0;background:rgba(27,19,64,.22);backdrop-filter:blur(5px);z-index:90;opacity:0;pointer-events:none;transition:.2s}.overlay.is-open{opacity:1;pointer-events:auto}.site-drawer{position:fixed;left:50%;bottom:0;transform:translate(-50%,110%);width:min(720px,100%);max-height:78vh;overflow:auto;background:#fff;border-radius:28px 28px 0 0;z-index:100;box-shadow:0 -20px 60px rgba(49,46,129,.18);padding:24px;visibility:hidden;pointer-events:none;transition:transform .28s ease,visibility .28s}.site-drawer.is-open{transform:translate(-50%,0);visibility:visible;pointer-events:auto}.drawer-head,.search-head{display:flex;align-items:center;justify-content:space-between;gap:12px}.drawer-brand{display:flex;align-items:center;gap:12px;color:var(--ink)}.drawer-brand img{max-width:100px;max-height:36px}.drawer-groups{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;margin-top:20px}.drawer-groups section{background:var(--bg);border-radius:22px;padding:18px}.drawer-groups h2{font-size:16px}.drawer-groups a{display:block;padding:11px 8px;border-radius:12px}.drawer-groups a:hover{background:#fff}.drawer-groups b,.drawer-groups span{display:block}.drawer-groups span{font-size:12px;color:var(--muted)}.search-layer{position:fixed;top:86px;left:50%;transform:translateX(-50%) translateY(-15px);z-index:101;width:min(720px,calc(100% - 32px));opacity:0;visibility:hidden;pointer-events:none;transition:.2s}.search-layer.is-open{transform:translateX(-50%) translateY(0);opacity:1;visibility:visible;pointer-events:auto}.search-card{background:#fff;border-radius:24px;padding:22px;box-shadow:var(--shadow)}.search-look{min-height:52px;background:var(--soft);border-radius:18px;display:flex;align-items:center;gap:12px;padding:0 18px;color:var(--muted)}.preset-links{display:flex;flex-wrap:wrap;gap:10px;margin-top:16px}.preset-links a{padding:10px 14px;background:#fff;border:1px solid var(--border);border-radius:999px}.modal-open{overflow:hidden}.mobile-dock{display:none}.statement{padding:26px;border-radius:24px;background:#fff;border:1px solid var(--border)}.statement + .statement{margin-top:16px}.page-hero{padding:50px 0 26px}.page-hero-grid{display:grid;grid-template-columns:1fr .7fr;gap:34px;align-items:center}.page-hero h1{font-size:clamp(38px,6vw,64px)}.chip-row{display:flex;gap:10px;flex-wrap:wrap;margin-top:18px}.chip{display:inline-flex;padding:8px 12px;border-radius:999px;background:#fff;border:1px solid var(--border);font-size:13px}.accent-teal{border-top:5px solid var(--teal)}.accent-coral{border-top:5px solid var(--coral)}.accent-rose{border-top:5px solid var(--rose)}.accent-amber{border-top:5px solid var(--amber)}
@media(max-width:980px){.desktop-nav{display:none}.floating-brandbar{grid-template-columns:1fr auto 1fr}.brand-center{grid-column:2}.desktop-search{display:none}.mobile-app-link{display:inline-flex;justify-self:end;align-items:center;min-height:44px;padding:0 14px;border-radius:999px;background:linear-gradient(135deg,#A78BFA,#7C3AED,#14B8A6);color:#fff;font-weight:800;font-size:13px}.brand-center .menu-toggle{position:absolute;left:10px}.hero-grid,.page-hero-grid,.split,.number-layout{grid-template-columns:1fr}.number-index{position:static;grid-template-columns:repeat(4,minmax(0,1fr))}.mosaic{grid-template-columns:1fr 1fr}.mosaic .feature:first-child{grid-row:auto;grid-column:1/-1}.tag-track,.grid-4{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:700px){.site-topbar{padding:8px 12px}.floating-brandbar{height:56px;padding:4px 8px}.brand-mark{height:42px}.brand-mark img{max-height:30px}.site-main{padding-top:82px}.container,.footer-inner{width:min(100% - 32px,1200px)}.section{padding:38px 0}.hero-grid{min-height:auto;gap:26px}.hero-copy{padding-top:18px}.grid-2,.grid-3,.grid-4,.tag-track,.index-list,.footer-grid,.drawer-groups,.mosaic{grid-template-columns:1fr}.folder{grid-template-columns:54px 1fr}.folder small{display:none}.number-index{grid-template-columns:repeat(2,minmax(0,1fr))}.number-index a{font-size:13px}.rank-item{grid-template-columns:68px 1fr}.rank-num{font-size:44px}.site-drawer{border-radius:24px 24px 0 0;max-height:78vh}.search-layer{inset:0;width:100%;transform:translateY(12px);background:var(--bg);padding:78px 16px 100px;overflow:auto}.search-layer.is-open{transform:translateY(0)}.search-card{box-shadow:none;background:transparent;padding:0}.mobile-dock{position:fixed;display:grid;grid-template-columns:repeat(5,1fr);left:16px;right:16px;bottom:calc(10px + env(safe-area-inset-bottom));height:52px;background:rgba(255,255,255,.94);backdrop-filter:blur(16px);border:1px solid var(--border);border-radius:22px;z-index:70;box-shadow:0 10px 30px rgba(49,46,129,.14);padding:5px}.mobile-dock a{display:flex;flex-direction:column;align-items:center;justify-content:center;font-size:11px;color:var(--muted);min-width:0}.mobile-dock a span{width:5px;height:5px;border-radius:50%;background:transparent;margin-bottom:2px}.mobile-dock a.is-active{color:var(--purple);font-weight:800}.mobile-dock a.is-active span{background:var(--purple)}.site-footer{padding-bottom:110px}.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.media-slot{border-radius:22px}}