:root{--primary: #080808;--on-primary: #ffffff;--ink: #080808;--ink-strong: #222222;--body: #363636;--body-mid: #5a5a5a;--mute: #898989;--mute-soft: #ababab;--hairline: #d8d8d8;--canvas: #ffffff;--purple: #7a3dff;--pink: #ed52cb;--blue: #3b89ff;--blue-deep: #006acc;--blue-info: #146ef5;--orange: #ff6b00;--green: #00d722;--yellow: #ffae13;--red: #ee1d36;--font: Inter, system-ui, -apple-system, "PingFang SC", "Noto Sans SC", sans-serif;--mono: Inconsolata, ui-monospace, SFMono-Regular, Menlo, monospace;--shadow-2: 0 84px 24px rgba(0, 0, 0, 0), 0 54px 22px rgba(0, 0, 0, .01), 0 30px 18px rgba(0, 0, 0, .04), 0 13px 13px rgba(0, 0, 0, .08), 0 3px 7px rgba(0, 0, 0, .09);--shadow-3: 0 84px 24px rgba(0, 0, 0, 0), 0 54px 22px rgba(0, 0, 0, .02), 0 30px 18px rgba(0, 0, 0, .06), 0 13px 13px rgba(0, 0, 0, .1), 0 3px 7px rgba(0, 0, 0, .12);--shadow-4: 0 24px 24px rgba(0, 0, 0, .26), 0 6px 13px rgba(0, 0, 0, .29);--color-ink-muted: var(--mute);--color-ink-subtle: var(--mute-soft);--color-surface-1: var(--canvas);--color-hairline-soft: var(--hairline)}*{box-sizing:border-box}html,body,#root{height:100%;min-height:100dvh}body{margin:0;background:var(--canvas);color:var(--ink);font-family:var(--font);font-size:16px;font-weight:400;line-height:25.6px;letter-spacing:-.16px;font-feature-settings:"ss01";overflow:hidden}#root{display:flex;flex-direction:column;min-height:100dvh}a{color:inherit;text-decoration:none}button,input,select,textarea{font-family:inherit}:focus-visible{outline:2px solid var(--primary);outline-offset:2px}.app-shell{display:flex;flex-direction:column;flex:1;min-height:0;height:100%;background:var(--canvas)}.top-nav,.landing-nav{min-height:64px;background:var(--canvas);display:flex;align-items:center;gap:16px;padding:16px 32px;border-bottom:1px solid var(--hairline);flex-shrink:0;z-index:10}.landing-nav{position:sticky;top:0;flex-wrap:wrap}.brand{display:flex;align-items:center;gap:8px;font-size:14px;font-weight:500;line-height:22.4px;letter-spacing:0;color:var(--ink);white-space:nowrap}.brand img{width:28px;height:28px;border-radius:4px;object-fit:cover}.btn.nav-toggle{display:none}.nav-links,.landing-links{display:flex;flex:1;flex-wrap:wrap;justify-content:center;gap:8px 20px;font-size:14px;font-weight:500;line-height:22.4px}.nav-links a,.landing-links a{color:var(--ink);padding:8px 0;border-bottom:2px solid transparent}.nav-links a.active{border-bottom-color:var(--primary)}.nav-links a:hover,.landing-links a:hover{color:var(--ink-strong)}.nav-right{display:flex;align-items:center;gap:12px;margin-left:auto;font-size:12.8px;font-weight:550;line-height:15.36px;color:var(--body-mid);flex-shrink:0}.nav-right span{max-width:28vw;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.landing-nav-actions{margin-left:auto}.page{flex:1;width:100%;max-width:100%;margin:0;padding:32px;overflow:auto;min-height:0;min-width:0;display:flex;flex-direction:column}.eyebrow{margin:0 0 12px;font-size:15px;font-weight:500;line-height:19.5px;letter-spacing:1.5px;text-transform:uppercase;color:var(--mute)}h1.display{margin:0 0 16px;font-size:clamp(32px,4vw,44.8px);font-weight:600;line-height:1.04;letter-spacing:-.4px;color:var(--ink)}h2.headline,.card-title{margin:0 0 12px;font-size:24px;font-weight:500;line-height:31.2px;letter-spacing:0;color:inherit}.subhead,.landing-lead{margin:0 0 24px;max-width:40rem;color:var(--body);font-size:16px;font-weight:400;line-height:25.6px;letter-spacing:-.16px}.meta{margin:0 0 8px;color:var(--mute);font-size:14px;line-height:22.4px;letter-spacing:0;overflow-wrap:anywhere}.meta-soft{margin:0 0 16px;color:var(--mute-soft);font-size:14px;line-height:22.4px;overflow-wrap:anywhere}.card,.mock-card,.feature-card,.cta-banner{background:var(--canvas);color:var(--ink);border:1px solid var(--hairline);border-radius:8px;padding:32px}.card-lift,.mock-card{box-shadow:var(--shadow-2)}.card-dark,.answer{background:var(--primary);color:var(--on-primary);border:none;border-radius:8px;padding:32px;box-shadow:var(--shadow-2);white-space:pre-wrap}.card-fill{flex:1;min-height:0;display:flex;flex-direction:column;padding:0;overflow:hidden}.card-actions{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}.cat-card{border-radius:8px;padding:32px;min-height:180px;display:flex;flex-direction:column;gap:12px;color:var(--on-primary)}.cat-card .eyebrow,.cat-card .stat-label,.cat-card .meta{color:inherit;opacity:.82}.cat-card .card-title,.cat-card h2,.cat-card h3{margin:0;color:inherit}.cat-card p{margin:0;font-size:16px;line-height:25.6px;letter-spacing:-.16px}.cat-card .level{align-self:flex-start;margin-top:auto;background:transparent;color:inherit;border-color:currentColor}.cat-purple{background:var(--purple)}.cat-pink{background:var(--pink)}.cat-blue{background:var(--blue)}.cat-orange{background:var(--orange)}.cat-green{background:var(--green);color:var(--primary)}.cat-dark{background:var(--primary);color:var(--on-primary)}.cat-card.clickable,.wiki-card{cursor:pointer}.grid-3,.landing-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}.landing-grid-4{grid-template-columns:repeat(4,minmax(0,1fr))}.stat-num{font-size:32px;font-weight:500;line-height:41.6px;letter-spacing:0}.stat-label{font-size:14px;line-height:22.4px}.btn{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:12px 20px;border-radius:4px;border:1px solid transparent;background:var(--primary);color:var(--on-primary);font-size:16px;font-weight:500;line-height:25.6px;letter-spacing:-.16px;cursor:pointer}.btn:hover{background:var(--ink-strong)}.btn-secondary{background:var(--canvas);color:var(--ink);border-color:var(--hairline)}.btn-secondary:hover{background:#fafafa}.btn:disabled{opacity:.45;cursor:not-allowed}a.btn{text-decoration:none}.text-arrow{display:inline-flex;align-items:center;gap:8px;padding:20px 0;color:var(--ink);font-size:16px;font-weight:500;letter-spacing:-.16px}.text-arrow:before{content:"←"}.link-btn{background:none;border:0;padding:0;color:var(--blue-deep);font-size:14px;font-weight:500;line-height:22.4px;cursor:pointer;text-align:left}.link-btn:hover{text-decoration:underline;text-underline-offset:3px}.input,select{width:100%;min-height:44px;padding:12px 16px;border:1px solid var(--hairline);border-radius:4px;background:var(--canvas);color:var(--ink);font-size:16px;line-height:25.6px;letter-spacing:-.16px}.input::placeholder{color:var(--mute-soft)}.input:focus,select:focus{border-color:var(--primary);outline:none}.field{margin-bottom:16px}.field label{display:block;margin-bottom:8px;color:var(--body-mid);font-size:14px;font-weight:500;line-height:22.4px}.toolbar{display:flex;gap:12px;align-items:center;margin-bottom:24px;flex-wrap:wrap;width:100%}.toolbar .input{flex:1 1 240px;min-width:180px}.table-wrap{overflow:auto;flex:1;min-height:0}table{width:100%;border-collapse:collapse}th,td{text-align:left;padding:12px 16px;border-bottom:1px solid var(--hairline);vertical-align:top}th{background:var(--canvas);color:var(--mute);font-size:12.8px;font-weight:550;line-height:15.36px;letter-spacing:.6px;text-transform:uppercase;white-space:nowrap}td{color:var(--body);font-size:14px;line-height:22.4px;letter-spacing:0;white-space:nowrap}tr.clickable{cursor:pointer}tr.clickable:hover td{background:#fafafa}.table-foot{padding:16px;color:var(--body-mid);font-size:14px;line-height:22.4px}.mono{font-family:var(--mono);font-size:12px;font-weight:400;line-height:18px;font-feature-settings:"ss02","ss10","zero";word-break:break-all}.level{display:inline-block;padding:4px 8px;border:1px solid var(--blue-info);border-radius:4px;background:var(--canvas);color:var(--blue-info);font-size:12.8px;font-weight:550;line-height:15.36px}.detail-grid{display:grid;grid-template-columns:160px 1fr;gap:12px;padding:12px 0;border-bottom:1px solid var(--hairline);font-size:14px;line-height:22.4px}.detail-label{color:var(--body-mid)}.tree-node{border-bottom:1px solid var(--hairline)}.tree-row,.doc-row{display:flex;align-items:center;gap:8px;width:100%;padding:10px 12px;border:0;background:transparent;text-align:left;cursor:pointer;font-size:14px}.tree-row:hover,.doc-row:hover{background:#f6f6f6}.tree-children{margin-left:16px}.tree-count{margin-left:auto;color:var(--mute);font-size:13px}.filters{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:16px}.filters .input,.filters select{width:auto;min-width:140px;flex:1 1 140px}.doc-page{flex:1;min-height:0;display:flex;flex-direction:column}.doc-split{flex:1;min-height:280px;display:flex;border:1px solid var(--hairline)}.doc-nav{width:min(360px,40%);overflow:auto;border-right:1px solid var(--hairline)}.doc-main{flex:1;min-width:0;overflow:auto;padding:20px 24px}.doc-row.active{background:#f3f3f3}.doc-meta{display:grid;grid-template-columns:88px 1fr;gap:8px 12px;margin:16px 0 24px;font-size:14px}.doc-meta dt{color:var(--mute)}.doc-meta dd{margin:0;overflow-wrap:anywhere}.doc-body{white-space:pre-wrap;font-size:15px;line-height:1.7;margin:0}.crawl-log{margin-top:12px;padding-top:12px;border-top:1px solid var(--hairline);font-size:13px;line-height:1.5}.crawl-log ol{margin:8px 0 0;padding-left:18px}.crawl-log li{margin:4px 0;overflow-wrap:anywhere}.notice{margin:0 0 16px;padding:12px 16px;border:1px solid var(--hairline);border-radius:8px;background:var(--canvas);box-shadow:var(--shadow-2);color:var(--body);font-size:14px;line-height:22.4px}.error{color:var(--red);font-size:14px;line-height:22.4px;margin:0 0 12px}.wiki-body{white-space:pre-wrap;color:var(--body);font-size:16px;line-height:25.6px;letter-spacing:-.16px}.step-index{margin:0;font-size:12px;font-weight:500;line-height:12px;letter-spacing:.6px;text-transform:uppercase;color:var(--mute)}.feature-card h3{margin:12px 0 8px;font-size:24px;font-weight:500;line-height:31.2px}.feature-card p{margin:0;color:var(--body);font-size:14px;line-height:22.4px}.center{display:flex;gap:32px;flex:1;min-height:0}.center-nav{width:200px;flex-shrink:0;display:flex;flex-direction:column;gap:4px;border-right:1px solid var(--hairline);padding-right:16px}.center-nav a{padding:12px 16px;border-radius:4px;color:var(--body-mid);font-size:14px;font-weight:500;line-height:22.4px}.center-nav a.active{color:var(--ink);box-shadow:inset 2px 0 0 var(--primary)}.center-main{flex:1;min-width:0}.login-wrap{flex:1;min-height:100dvh;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:24px;padding:32px;background:var(--canvas)}.login-card{width:min(440px,100%);box-shadow:var(--shadow-3)}.login-card .brand{margin-bottom:24px}.login-card h2.headline{font-size:24px}.login-back{margin:20px 0 0}.login-back a{color:var(--ink);font-weight:500;text-decoration:underline;text-underline-offset:3px}.landing{flex:1;min-height:0;overflow:auto;background:var(--canvas);color:var(--ink)}.landing-section{width:min(1200px,100%);margin:0 auto;padding:80px 32px;scroll-margin-top:80px}.landing-hero{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:48px;align-items:center;padding-top:72px;padding-bottom:72px}.landing-copy h1{margin:0 0 20px;font-size:clamp(40px,6vw,80px);font-weight:600;line-height:1.04;letter-spacing:-.8px;text-wrap:balance}.landing-lead{font-size:clamp(18px,2vw,28.8px);line-height:1.6;letter-spacing:-.288px;color:var(--body)}.landing-section h2{margin:0 0 12px;font-size:clamp(32px,4vw,44.8px);font-weight:600;line-height:1.04}.landing-actions{display:flex;flex-wrap:wrap;gap:12px}.mock-top,.mock-stats{display:flex;align-items:center;justify-content:space-between;gap:12px}.mock-top{margin-bottom:16px;color:var(--body-mid);font-size:12.8px;font-weight:550}.mock-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-bottom:16px}.mock-stats div{border:1px solid var(--hairline);border-radius:8px;padding:16px}.mock-stats strong{display:block;font-size:14px;font-weight:500}.mock-stats span{color:var(--mute);font-size:12px;line-height:18px}.band-dark{background:var(--primary);color:var(--on-primary);padding:80px 32px}.band-dark .landing-section{padding:0}.band-dark h2,.band-dark p{color:var(--on-primary)}.band-dark .btn{background:var(--on-primary);color:var(--primary)}.band-dark .btn:hover{background:#f2f2f2}.landing-footer{display:grid;grid-template-columns:1.4fr .8fr 1.2fr;gap:32px;width:min(1200px,100%);margin:0 auto;padding:32px;border-top:1px solid var(--hairline);color:var(--body-mid);font-size:14px;line-height:22.4px}.landing-footer p{margin:8px 0 0}.landing-footer a{display:block;margin-top:8px;color:var(--body-mid)}.landing-footer a:hover{color:var(--ink)}.footer-label{color:var(--ink);font-size:14px;font-weight:500}.footer{padding:32px;border-top:1px solid var(--hairline);background:var(--canvas);color:var(--body-mid);font-size:14px;line-height:22.4px;text-align:center;flex-shrink:0}.beian-row{display:flex;flex-wrap:wrap;justify-content:center;align-items:center;gap:8px 16px;margin:8px 0 0}.landing-footer .beian-row{justify-content:flex-start}a.beian{display:inline-flex;align-items:center;gap:6px;color:var(--body-mid);font-size:12.8px;font-weight:550;line-height:15.36px}a.beian img{width:16px;height:16px;object-fit:contain;flex-shrink:0}a.beian:hover{color:var(--ink)}.footer a.beian,.landing-footer a.beian{display:inline-flex;margin-top:0}@media(max-width:991px){.grid-3,.landing-grid,.landing-grid-4{grid-template-columns:repeat(2,minmax(0,1fr))}.landing-hero{grid-template-columns:1fr;gap:32px}}@media(max-width:767px){.top-nav,.landing-nav,.page,.landing-section,.band-dark,.footer,.landing-footer{padding-left:16px;padding-right:16px}.btn.nav-toggle{display:inline-flex}.landing-nav .brand{flex:1 1 0;min-width:0;overflow:hidden}.landing-nav-actions{flex-shrink:0}.nav-right{order:5;flex:1 1 100%;margin-left:0;justify-content:space-between}.nav-right span{max-width:68%}.nav-links,.landing-links{display:none;order:4;justify-content:flex-start;padding:8px 0}.nav-links.open,.landing-links.open{display:flex;flex:1 1 100%;flex-direction:column;align-items:flex-start;gap:4px}.top-nav,.landing-nav{flex-wrap:wrap}.nav-right span{max-width:42vw}.grid-2,.grid-3,.landing-grid,.landing-grid-4,.landing-footer,.mock-stats,.center,.doc-split{grid-template-columns:1fr;flex-direction:column}.doc-nav{width:auto;max-height:40vh;border-right:0;border-bottom:1px solid var(--hairline)}.center-nav{width:auto;flex-direction:row;flex-wrap:wrap;border-right:0;border-bottom:1px solid var(--hairline);padding:0 0 12px}.center-nav .eyebrow{flex:1 1 100%}.center-nav a.active{border-radius:0;box-shadow:none;border-bottom:2px solid var(--primary)}.detail-grid{grid-template-columns:1fr;gap:4px}.cat-card,.card,.feature-card{padding:24px}}