:root{--bg:#F7F4FF;--white:#FFFFFF;--soft:#EEF2FF;--title:#1B1340;--text:#2F2A4A;--muted:#5B5678;--faint:#8B86A3;--purple:#7C3AED;--lav:#A78BFA;--teal:#14B8A6;--orange:#F97316;--pink:#E11D48;--amber:#F59E0B;--indigo:#312E81;--line: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","PingFang SC","Microsoft YaHei",sans-serif;line-height:1.75;overflow-x:hidden}body.no-scroll{overflow:hidden}a{color:inherit;text-decoration:none}img{max-width:100%;height:auto;display:block}button{font:inherit}.top-shell{position:fixed;z-index:50;top:12px;left:0;width:100%;pointer-events:none}.brandbar,.mobile-brandbar{pointer-events:auto}.desktop-brandbar{height:64px;max-width:1080px;margin:auto;background:rgba(255,255,255,.92);border:1px solid var(--line);box-shadow:var(--shadow);border-radius:999px;padding:8px 10px;display:grid;grid-template-columns:44px 1fr auto 1fr 44px;gap:8px;align-items:center;backdrop-filter:blur(16px)}.pill-group{display:flex;gap:6px;align-items:center}.right-pills{justify-content:flex-end}.nav-pill,.mobile-app-link{min-height:44px;padding:10px 14px;border-radius:999px;display:inline-flex;align-items:center;justify-content:center;color:var(--muted);font-size:14px;font-weight:700;white-space:nowrap}.nav-pill:hover,.nav-pill:focus-visible,.nav-pill.is-active{color:var(--purple);outline:2px solid var(--purple);outline-offset:-2px;background:#fff}.app-pill{background:linear-gradient(135deg,#A78BFA 0%,#7C3AED 50%,#14B8A6 100%);color:#fff}.brand-mark{display:flex;align-items:center;justify-content:center;min-width:92px;height:48px;font-weight:900;color:var(--indigo);letter-spacing:.04em}.brand-mark img{max-width:116px;max-height:40px;object-fit:contain}.round-control{width:44px;height:44px;border:0;border-radius:50%;background:var(--soft);color:var(--indigo);cursor:pointer;display:grid;place-items:center;font-size:20px}.round-control:focus-visible,.round-control:hover{outline:2px solid var(--purple);outline-offset:2px}.mobile-brandbar{display:none}main{padding-top:108px;min-height:60vh}.wrap{max-width:1200px;margin:0 auto;padding:0 24px}.section{padding:40px 0}.section-lg{padding:64px 0}.eyebrow{font-size:13px;font-weight:900;letter-spacing:.12em;color:var(--purple);text-transform:uppercase}.hero-title,.page-title{margin:.15em 0 .4em;color:var(--title);font-size:clamp(38px,6vw,72px);line-height:1.08;letter-spacing:-.04em}.page-title{font-size:clamp(34px,5vw,58px)}.lede{max-width:760px;font-size:18px;color:var(--muted)}.button-row{display:flex;gap:12px;flex-wrap:wrap;margin-top:24px}.btn{min-height:44px;display:inline-flex;align-items:center;justify-content:center;border-radius:999px;padding:12px 20px;font-weight:800;border:1px solid var(--line);background:#fff}.btn.primary{background:linear-gradient(135deg,#A78BFA 0%,#7C3AED 50%,#14B8A6 100%);color:#fff;border:0}.btn:hover,.btn:focus-visible{transform:translateY(-1px);outline:3px solid rgba(124,58,237,.22)}.dock{display:grid;grid-template-columns:1.15fr .85fr;gap:28px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:28px;padding:clamp(24px,5vw,56px);box-shadow:var(--shadow)}.media-slot{min-height:250px;border-radius:24px;background:linear-gradient(145deg,#EEF2FF,#FCE7F3);border:1px dashed var(--line);display:grid;place-items:center;overflow:hidden}.media-slot img{width:100%;height:100%;object-fit:contain}.tag-rail{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.tag-card,.card{background:#fff;border:1px solid var(--line);border-radius:22px;padding:20px;box-shadow:0 10px 24px rgba(49,46,129,.06)}.tag-card b{display:flex;align-items:center;gap:8px;color:var(--title)}.dot{width:10px;height:10px;border-radius:50%;display:inline-block}.c1{background:var(--purple)}.c2{background:var(--teal)}.c3{background:var(--orange)}.c4{background:var(--pink)}.tag-card p,.card p{margin:.6em 0;color:var(--muted)}.split{display:grid;grid-template-columns:1fr 1fr;gap:24px}.numbered{display:grid;grid-template-columns:220px 1fr;gap:28px}.number-list{display:grid;gap:10px}.number-list a{padding:14px 16px;border-radius:16px;background:#fff;border:1px solid var(--line);font-weight:800}.number-list span{color:var(--purple);margin-right:10px}.story{background:#fff;border:1px solid var(--line);border-radius:26px;padding:28px}.story h2,.section-title{color:var(--title);font-size:clamp(26px,3.5vw,40px);line-height:1.2}.mosaic{display:grid;grid-template-columns:1.3fr .7fr;gap:18px}.mosaic .wide{grid-row:span 2}.folder-list{display:grid;gap:12px}.folder{display:grid;grid-template-columns:160px 1fr auto;gap:18px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:20px;padding:18px}.folder .meta{color:var(--faint);font-size:14px}.big-rank{display:grid;gap:14px}.rank-row{display:grid;grid-template-columns:90px 1fr;align-items:center;background:#fff;border-radius:20px;padding:16px;border:1px solid var(--line)}.rank-num{font-size:52px;line-height:1;font-weight:950;color:var(--purple)}.rank-row:nth-child(2) .rank-num{color:var(--teal)}.rank-row:nth-child(3) .rank-num{color:var(--orange)}.rank-row:nth-child(4) .rank-num{color:var(--pink)}.rank-row:nth-child(5) .rank-num{color:var(--amber)}.timeline{position:relative;padding-left:38px}.timeline:before{content:"";position:absolute;left:12px;top:8px;bottom:8px;width:2px;background:var(--line)}.node{position:relative;background:#fff;border:1px solid var(--line);border-radius:18px;padding:18px 20px;margin:0 0 14px}.node:before{content:"";position:absolute;left:-34px;top:24px;width:12px;height:12px;border-radius:50%;background:var(--purple);box-shadow:0 0 0 5px var(--bg)}.status{display:inline-flex;border-radius:999px;padding:5px 10px;background:var(--soft);color:var(--purple);font-size:12px;font-weight:800}.index-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.article{max-width:900px}.article h2{margin-top:2em;color:var(--title)}.article h3{color:var(--indigo)}.article p{font-size:17px}.callout{border-left:4px solid var(--purple);background:#fff;border-radius:0 18px 18px 0;padding:18px 20px}.terms{display:grid;gap:14px}.term{background:#fff;border:1px solid var(--line);border-radius:20px;padding:22px}.term h2{margin-top:0}.step-list{counter-reset:step;display:grid;gap:16px}.step{counter-increment:step;background:#fff;border:1px solid var(--line);border-radius:22px;padding:22px}.step h2:before{content:counter(step,decimal-leading-zero) " ";color:var(--purple)}.faq{display:grid;gap:14px}.faq article{background:#fff;border:1px solid var(--line);border-radius:20px;padding:22px}.faq h2{font-size:20px;margin:0 0 8px}.site-footer{margin-top:64px;background:#1B1340;color:#F4F0FF;padding:52px 0 calc(34px + env(safe-area-inset-bottom))}.footer-inner{max-width:1200px;margin:auto;padding:0 24px}.footer-brand{display:flex;gap:14px;align-items:center;margin-bottom:28px}.footer-brand img{max-width:100px;max-height:42px}.footer-brand div{display:grid}.footer-brand strong{font-size:24px}.footer-brand span{opacity:.72}.footer-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}.footer-grid h2{font-size:14px;color:#fff}.footer-grid a{display:block;padding:5px 0;color:#DCD5FF}.footer-grid a:hover{text-decoration:underline}.footer-note{max-width:820px;color:#C9C0EE;margin-top:34px}.copyright{color:#AFA6D4;font-size:14px}.page-overlay{position:fixed;inset:0;background:rgba(27,19,64,.38);z-index:70;opacity:0;visibility:hidden;pointer-events:none;transition:.2s}.page-overlay.is-open{opacity:1;visibility:visible;pointer-events:auto}.drawer{position:fixed;z-index:80;left:50%;bottom:0;width:min(720px,100%);max-height:78vh;overflow:auto;transform:translate(-50%,105%);visibility:hidden;pointer-events:none;background:#fff;border-radius:28px 28px 0 0;padding:22px;transition:.26s ease;box-shadow:0 -20px 60px rgba(27,19,64,.2)}.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:20px}.drawer-brand{display:flex;align-items:center;gap:12px;font-size:20px;color:var(--title)}.drawer-brand img{max-width:90px;max-height:38px}.drawer-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}.drawer-grid h2{font-size:14px;color:var(--purple);margin-bottom:8px}.drawer-grid a{display:grid;padding:10px 12px;border-radius:14px}.drawer-grid a:hover{background:var(--soft)}.drawer-grid b{color:var(--title)}.drawer-grid span{font-size:13px;color:var(--muted)}.search-layer{position:fixed;z-index:85;top:88px;left:50%;width:min(760px,calc(100% - 32px));transform:translate(-50%,-12px);opacity:0;visibility:hidden;pointer-events:none;transition:.2s}.search-layer.is-open{transform:translate(-50%,0);opacity:1;visibility:visible;pointer-events:auto}.search-card{background:#fff;border-radius:26px;padding:24px;border:1px solid var(--line);box-shadow:var(--shadow)}.search-head h2{margin:0;color:var(--title)}.search-faux{margin:18px 0;border:1px solid var(--line);background:var(--bg);border-radius:999px;padding:14px 18px;color:var(--faint)}.search-presets{display:flex;gap:10px;flex-wrap:wrap}.search-presets a{background:var(--soft);color:var(--indigo);border-radius:999px;padding:9px 13px;font-weight:700}.mobile-island{display:none}.soft-band{background:var(--soft);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.legal-note{font-size:14px;color:var(--faint)}
@media(max-width:980px){.desktop-brandbar{display:none}.mobile-brandbar{display:grid;grid-template-columns:44px 1fr 70px;align-items:center;gap:10px;margin:0 16px;height:58px;padding:7px 9px;border-radius:999px;background:rgba(255,255,255,.94);border:1px solid var(--line);box-shadow:var(--shadow);backdrop-filter:blur(16px)}.mobile-app-link{background:var(--soft);color:var(--purple)}main{padding-top:94px}.dock,.split,.numbered{grid-template-columns:1fr}.tag-rail{grid-template-columns:1fr 1fr}.mosaic{grid-template-columns:1fr}.mosaic .wide{grid-row:auto}.index-grid{grid-template-columns:1fr 1fr}.footer-grid{grid-template-columns:1fr 1fr}.mobile-island{position:fixed;z-index:60;left:16px;right:16px;bottom:calc(10px + env(safe-area-inset-bottom));height:52px;display:grid;grid-template-columns:repeat(5,1fr);background:rgba(255,255,255,.96);border:1px solid var(--line);border-radius:20px;box-shadow:var(--shadow);backdrop-filter:blur(16px);padding:4px}.mobile-island a{position:relative;display:grid;place-items:center;font-size:12px;color:var(--muted);border-radius:16px}.mobile-island a.is-active{color:var(--purple);font-weight:900}.mobile-island a.is-active:before{content:"";position:absolute;top:4px;width:6px;height:6px;background:var(--purple);border-radius:50%}.site-footer{padding-bottom:calc(92px + env(safe-area-inset-bottom))}.folder{grid-template-columns:1fr}.folder .meta{text-align:left}}
@media(max-width:640px){.wrap,.footer-inner{padding-left:16px;padding-right:16px}.section{padding:28px 0}.section-lg{padding:42px 0}.dock{padding:24px 20px;border-radius:24px}.hero-title{font-size:42px}.lede{font-size:16px}.tag-rail,.index-grid,.footer-grid,.drawer-grid{grid-template-columns:1fr}.media-slot{min-height:200px}.rank-row{grid-template-columns:64px 1fr}.rank-num{font-size:40px}.drawer{width:100%;border-radius:24px 24px 0 0}.search-layer{inset:0;width:100%;transform:none;background:var(--bg);padding:80px 16px 20px}.search-layer.is-open{transform:none}.search-card{box-shadow:none}.mobile-brandbar .brand-mark img{max-width:100px}.mobile-brandbar .brand-mark{min-width:0}.article p{font-size:16px}}