:root{--ink:#17213b;--muted:#68748b;--purple:#4f46e5;--line:#e5e8f1;--paper:#f5f6fa;--reading:16px;font-family:Inter,"Segoe UI","Microsoft YaHei",system-ui,sans-serif;color:var(--ink);background:var(--paper);font-synthesis:none}
*{box-sizing:border-box}body{margin:0}button,input{font:inherit}button,a{touch-action:manipulation}button{cursor:pointer;background:#fff;color:var(--ink);border:1px solid var(--line);border-radius:10px;padding:10px 14px;transition:background .15s}button:hover{background:#eef0ff;border-color:#c7c6fa}button:focus-visible,a:focus-visible,input:focus-visible{outline:3px solid #a5b4fc;outline-offset:3px}button:disabled{opacity:.4;cursor:default}a{color:var(--purple)}[hidden]{display:none!important}.skip{position:fixed;left:10px;top:-70px;background:#fff;padding:12px;z-index:50}.skip:focus{top:10px}.masthead{padding:22px 4vw;display:flex;align-items:center;justify-content:space-between;background:#fff;border-bottom:1px solid var(--line);gap:20px}.brand{display:flex;gap:12px;align-items:center;color:var(--ink);text-decoration:none;font-size:24px;font-weight:760;letter-spacing:-.8px}.brand small{display:block;font-size:9px;letter-spacing:2px;color:var(--muted);margin-top:5px}.mark{width:44px;height:44px;background:linear-gradient(135deg,#4f46e5,#8b5cf6);color:white;border-radius:14px;display:grid;place-items:center;position:relative;font-size:30px}.mark span{font-size:15px;position:absolute;right:4px;top:0;color:#ddd6fe}.header-actions{display:flex;gap:8px;font-size:13px}.hero{background:radial-gradient(ellipse at 90% 0,#3b3269,transparent 60%),#161c35;color:white;display:flex;justify-content:space-between;gap:40px;padding:48px 6vw 42px}.eyebrow{font-size:11px;letter-spacing:2px;color:#847de9;font-weight:700;text-transform:uppercase}.hero .eyebrow{color:#c4b5fd}h1{font-size:clamp(30px,3.3vw,48px);line-height:1.35;margin:17px 0;letter-spacing:-1px}.hero p{color:#b8c1d9;line-height:1.9;font-size:14px;max-width:650px;margin:0}.hero-meta{min-width:310px;display:flex;flex-direction:column;align-items:flex-start;justify-content:center;gap:20px}.pill{background:#ffffff0c;border:1px solid #ffffff26;color:#d9d6ff;border-radius:99px;padding:8px 12px;font-size:11px}.stats{display:flex;gap:28px}.stats strong{font-size:34px;font-weight:600;display:block}.stats small{display:block;color:#a9b2cf;font-size:11px;margin-top:4px}.scenario-bar{display:flex;align-items:center;gap:22px;padding:20px 4vw;border-bottom:1px solid var(--line);background:#fff;font-size:12px}.scenario-bar>span{color:var(--muted);white-space:nowrap}.scenario-bar>div{display:flex;gap:8px;flex-wrap:wrap}.scenario-bar button{font-size:12px;padding:9px 13px;background:#f6f7fb}.scenario-bar button.active{background:#edeaff;color:#4f46e5;border-color:#c7c2fc}.workspace{display:grid;grid-template-columns:245px minmax(0,1fr);max-width:1600px;margin:auto}.sidebar{padding:26px 18px;border-right:1px solid var(--line);background:#fbfcfe;max-height:calc(100vh - 24px);position:sticky;top:0;overflow:auto}.sidebar label{font-size:11px;color:var(--muted);display:block;margin-bottom:10px}.sidebar input{width:100%;border:1px solid var(--line);border-radius:10px;padding:11px 10px;background:#fff;font-size:12px;min-width:0}.sidebar-meta{font-size:10px;color:var(--muted);margin:12px 4px 20px}.nav-group h3{font-size:10px;letter-spacing:1px;color:#8b92a6;margin:25px 10px 10px}.nav-item{display:flex;gap:10px;text-align:left;width:100%;border:0;background:transparent;padding:10px 9px;border-radius:8px;font-size:11px;line-height:1.65;align-items:baseline}.nav-item .num{font-size:9px;color:#a0a7b9;min-width:18px}.nav-item.active{color:#4f46e5;background:#eceafd;font-weight:650}.nav-item small{display:block;color:#8b92a6;font-size:9px;font-weight:400}main{min-width:0;padding:34px 34px 0}.page-heading{display:flex;justify-content:space-between;gap:20px;align-items:flex-start;margin:0 0 28px}.page-heading h2{font-size:27px;margin:10px 0 6px;font-weight:720;letter-spacing:-.6px}.page-heading p{color:var(--muted);font-size:12px;margin:0 0 12px}.page-heading code{font-size:10px;padding:6px 9px;background:#e9ecf3;color:#64708b;display:inline-block;border-radius:6px;overflow-wrap:anywhere}.page-index{color:#a0a7b9;font-size:11px;white-space:nowrap;margin-top:18px}.page-layout{display:grid;grid-template-columns:minmax(300px,420px) minmax(300px,1fr);gap:30px;align-items:start}.visual{min-width:0}.visual-label{display:flex;justify-content:space-between;font-size:10px;color:#8992a7;padding:0 12px 12px}.phone{width:100%;max-width:390px;border:8px solid #232b43;border-radius:38px;box-shadow:0 18px 48px #1a21441a;background:#fff;overflow:hidden;margin:auto;position:relative}.phone-top{background:#fff;color:#273146;display:flex;justify-content:space-between;padding:10px 22px 8px;font-size:11px;font-weight:600}.phone-content{height:710px;overflow-y:auto;scrollbar-width:thin;scrollbar-color:#d9dcf0 transparent;background:#f8fafc}.phone-content img{display:block;width:100%;height:auto}.phone-home{height:20px;background:#fff;position:relative}.phone-home:after{content:"";display:block;width:110px;height:4px;background:#20273d;border-radius:20px;margin:8px auto}.visual-footnote{font-size:10px;color:#8890a5;line-height:1.8;margin:15px 8px}.phone-actions{display:flex;gap:7px;flex-wrap:wrap;margin:8px}.phone-actions button{font-size:10px;padding:8px 10px;color:#4f46e5;background:#eeedff;border-color:#dedbfd}.explanation{background:#fff;border:1px solid var(--line);border-radius:17px;overflow:hidden;min-width:0}.tabs{display:flex;gap:1px;background:#f9faff;padding:10px 10px 0;border-bottom:1px solid var(--line);overflow-x:auto;white-space:nowrap}.tabs button{font-size:11px;padding:14px 10px;border:0;border-radius:8px 8px 0 0;background:transparent;color:#7f879d}.tabs button[aria-selected=true]{background:white;color:#4f46e5;box-shadow:inset 0 -2px #4f46e5;font-weight:650}#tabContent{padding:24px;font-size:var(--reading);line-height:1.9;overflow-wrap:anywhere}#tabContent h3{font-size:13px;letter-spacing:.2px;margin:24px 0 10px}#tabContent h3:first-child{margin-top:0}#tabContent p{margin:0 0 15px}#tabContent li{margin-bottom:8px}ul{padding-left:20px}.tag{font-size:10px;display:inline-block;color:#72689f;background:#f2effb;padding:3px 8px;border-radius:6px;margin-right:5px}.note{background:#f5f3ff;border-left:3px solid #a78bfa;padding:13px 15px;font-size:12px;color:#655b83}.field{padding:13px 0;border-bottom:1px solid #edf0f6}.field b{font-size:13px;display:block}.field p{font-size:13px;color:#727d95;margin:4px 0!important}.flow-item{display:flex;gap:12px;margin-bottom:12px;padding:15px;background:#f8f9fd;border:1px solid #eceff6;border-radius:10px;align-items:center}.flow-item span{flex:1;font-size:13px}.flow-item small{font-size:11px;color:#7f8ba3;display:block;line-height:1.8;margin-top:5px}.flow-item button{font-size:11px;max-width:40%;line-height:1.5;color:#4f46e5}.copy-line{font-size:13px;line-height:1.8;border-bottom:1px solid #edf0f6;padding:11px 0}.source{background:#f7f8fc;padding:10px 12px;font-size:10px;line-height:1.9;color:#8a92a6;overflow-wrap:anywhere}.page-navigation{display:flex;align-items:center;justify-content:space-between;gap:10px;margin:30px 0}.page-navigation span{font-size:10px;color:#8993a9}.page-navigation button{font-size:11px}.boundary{padding:22px;background:#eef0f8;border-radius:14px;margin:30px 0;font-size:11px;color:#7e879f;line-height:1.8}.boundary h3{font-size:12px;margin:0}.boundary li{margin:8px 0}.section-heading{display:flex;align-items:center;justify-content:space-between}.section-heading h2{font-size:24px}.section-heading button{font-size:11px}.muted{font-size:13px;line-height:1.8;color:var(--muted)}.flow-scroll,.table-scroll{overflow-x:auto;border:1px solid var(--line);background:white;border-radius:14px;margin:20px 0}.flow-lane{display:flex;align-items:center;gap:8px;min-width:max-content;padding:16px;border-bottom:1px solid #edf0f6}.lane-title{min-width:100px;font-size:11px;font-weight:700;color:#727c95}.flow-node{min-width:100px;max-width:135px;background:#f6f4ff;color:#4f46e5;font-size:11px;line-height:1.6;border-color:#ded9ff}.flow-arrow{color:#c2bddb}table{border-collapse:collapse;width:100%;min-width:650px;font-size:12px;text-align:left}td,th{padding:13px 16px;border-bottom:1px solid #edf0f6}th{background:#f8f9fd;color:#929aaf;font-size:10px}td small{display:block;color:#8d96ab;font-size:10px;margin-top:5px}td button{font-size:11px;border:0;color:#4f46e5;background:transparent;padding:0}footer{text-align:center;padding:25px;color:#959db0;font-size:10px;border-top:1px solid var(--line)}.wire{padding:18px 15px;font-size:14px}.wire-brand{font-size:19px;font-weight:750;color:#4f46e5;margin:6px 0 25px}.wire-kicker{font-size:10px;color:#8b5cf6;margin-bottom:12px}.wire h3{font-size:23px;line-height:1.4}.wire-card{background:#fff;padding:18px;border:1px solid #eeeafa;border-radius:16px;margin:14px 0;box-shadow:0 8px 22px #27346a08}.wire-row{padding:12px 0;border-bottom:1px solid #f0f1f6;display:flex;justify-content:space-between;gap:10px}.wire-row span{font-size:11px;color:#8b94a8}.wire .wire-action{display:block;background:linear-gradient(110deg,#4f46e5,#8b5cf6);color:#fff;width:100%;font-size:13px;font-weight:650;padding:14px;margin:12px 0;border:0;border-radius:12px}.wire p{font-size:12px;line-height:1.8;color:#8b92a6}.wire-badge{font-size:9px;color:#74669c;padding:6px 8px;border:1px dashed #cfc4ee;border-radius:6px;background:#f5f0ff}.print-all{display:none}.sr-only{position:absolute;width:1px;height:1px;padding:0;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap}
@media(min-width:1400px){.page-layout{grid-template-columns:420px minmax(400px,1fr);gap:42px}main{padding:40px}}
@media(max-width:1120px){.workspace{grid-template-columns:210px 1fr}main{padding:25px 22px}.page-layout{grid-template-columns:1fr}.visual{max-width:390px;margin:auto}.phone-content{height:650px}.hero{padding:35px 4vw}.hero-meta{min-width:230px}.hero p{font-size:12px}.stats{gap:22px}.header-actions{font-size:11px}.brand{font-size:21px}}
@media(max-width:700px){.masthead{padding:15px 18px;flex-wrap:wrap}.header-actions{width:100%;justify-content:space-between}.header-actions button{font-size:10px;padding:9px}.hero{display:block;padding:30px 22px}.hero-meta{margin-top:28px;gap:16px}.hero-meta p{display:none}.hero h1{font-size:31px}.scenario-bar{padding:15px;display:block}.scenario-bar>span{display:block;margin-bottom:10px}.scenario-bar button{font-size:10px}.workspace{display:block}.sidebar{position:relative;top:0;max-height:250px;border-right:0;border-bottom:1px solid var(--line);padding:18px}.sidebar label{display:none}.sidebar-meta{margin:8px 4px}.sidebar nav{display:flex;gap:18px;overflow-x:auto}.nav-group{min-width:190px}.nav-group h3{margin:8px}.nav-item{font-size:10px;padding:6px}.nav-item small{display:none}main{padding:25px 18px 0}.page-heading h2{font-size:23px}.page-index{font-size:9px}.phone-content{height:620px}.explanation{margin-top:10px}#tabContent{padding:20px}.page-layout{gap:20px}.page-navigation span{display:none}.section-heading h2{font-size:20px}.section-heading button{font-size:10px}.boundary{font-size:10px}.stats strong{font-size:28px}}
@media print{body{background:#fff}.masthead,.hero,.scenario-bar,.workspace,footer{display:none}.print-all{display:block;margin:15mm;color:#111}.print-page{break-before:page;font-size:11pt;line-height:1.65}.print-page:first-child{break-before:auto}.print-page h2{font-size:20pt}.print-page h3{font-size:12pt;margin-bottom:6pt}.print-page code{font-size:9pt;overflow-wrap:anywhere}.print-page table{min-width:0;font-size:10pt}.print-page td{padding:6pt}.print-page .source{font-size:8pt}.print-page img{max-width:240px;max-height:650px;object-fit:contain;object-position:top}.print-page ul{padding-left:18pt}.print-page .print-columns{display:grid;grid-template-columns:1fr 240px;gap:20px}.print-page button{border:0;color:#111}.print-page .note{background:#f5f5f5;border-color:#aaa}}