:root{--paper:#f7f5ee;--white:#fffef9;--ink:#243f35;--body:#43554c;--muted:#66756b;--line:#dedfd3;--green:#e5ebdd;--amber:#755315;--amber-bg:#fbf2dc;--serif:Georgia,"Iowan Old Style","Palatino Linotype","Songti SC",serif;--sans:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif}
*{box-sizing:border-box}html{scroll-padding-top:24px}body{margin:0;background:var(--paper);color:var(--body);font:16px/1.8 var(--sans);-webkit-font-smoothing:antialiased}a{color:var(--ink);text-underline-offset:4px}a:hover{text-decoration-thickness:2px}a:focus-visible{outline:3px solid #57845b;outline-offset:5px;border-radius:3px}.shell{width:min(1080px,calc(100% - 80px));margin-inline:auto}.header{display:flex;justify-content:space-between;align-items:center;padding-block:30px;border-bottom:1px solid var(--line)}.brand{display:flex;align-items:center;gap:12px;font:36px/1 var(--serif);text-decoration:none;letter-spacing:-1.4px}.brand-mark{display:grid;place-items:center;border:1px solid #bac6ad;border-radius:20px 20px 10px 10px;background:var(--green);font:italic 36px/1 var(--serif);width:43px;height:48px;letter-spacing:-4px;padding-right:5px}.brand-subtitle{display:block;font:8px/1.3 var(--sans);letter-spacing:2px;margin-top:9px}.language{font-size:13px;display:flex;gap:13px;align-items:center;min-height:44px;text-decoration:none}.hero{padding:55px 0 36px;max-width:820px}.eyebrow{font-size:11px;font-weight:650;letter-spacing:2px;color:var(--muted);margin:0 0 15px}h1{font:normal clamp(36px,5.5vw,62px)/1.14 var(--serif);letter-spacing:-1.8px;color:var(--ink);margin:0 0 20px}.intro{max-width:640px;font-size:17px;line-height:1.75;margin:0;color:var(--muted)}.tabs{display:flex;gap:8px;border-bottom:1px solid var(--line);padding-bottom:13px}.tabs a{min-height:44px;display:flex;align-items:center;justify-content:center;padding:7px 23px;text-decoration:none;font-size:14px;border:1px solid transparent;border-radius:7px}.tabs a[aria-current=page]{background:var(--green);border-color:#cdd8c4;color:#274733;font-weight:600}.draft{margin:24px 0 36px;padding:16px 19px;display:flex;gap:12px;border:1px solid #e6d5ad;border-radius:9px;background:var(--amber-bg);color:var(--amber);font-size:12px;line-height:1.65}.draft strong{font-size:13px}.draft p{margin:4px 0 0}.draft-dot{background:#aa7f31;border-radius:50%;height:7px;width:7px;flex:none;margin-top:8px}.document-grid{display:grid;grid-template-columns:210px minmax(0,1fr);gap:40px;align-items:start}.overview{position:sticky;top:25px;font-size:13px;padding-top:7px}.overview dl{margin:0}.overview dt{color:var(--muted);font-size:11px;margin-top:17px}.overview dd{margin:2px 0 0;color:var(--ink);font-size:14px}.small{font-size:12px;line-height:1.7;color:var(--muted);margin-top:25px}.document{background:var(--white);padding:32px 38px 40px;border:1px solid var(--line);border-radius:12px;min-width:0;box-shadow:0 5px 22px #273b2b03}.document>p:first-child{margin-top:0}.document h2{font:normal 25px/1.35 var(--serif);color:var(--ink);margin:33px 0 14px;padding-top:27px;border-top:1px solid var(--line);letter-spacing:-.3px}.document h2:first-child{margin-top:0;padding-top:0;border-top:none}.document h3{color:var(--ink);font-size:15px;margin:22px 0 7px}.document p,.document ul,.document ol{font-size:14px;line-height:1.9;margin:12px 0}.document ul,.document ol{padding-left:21px}.document li{padding-left:3px;margin:7px 0}.document strong{color:var(--ink);font-weight:600}.document a{overflow-wrap:anywhere}.placeholder{display:inline;box-decoration-break:clone;-webkit-box-decoration-break:clone;background:var(--amber-bg);color:var(--amber);border-bottom:1px dashed #b99755;padding:2px 5px;font:11px/1.9 ui-monospace,SFMono-Regular,Menlo,monospace;overflow-wrap:anywhere}.field-value{overflow-wrap:anywhere}.callout{background:#eef1e7;border-left:3px solid #98ad84;padding:13px 17px;margin:19px 0;border-radius:0 7px 7px 0}.callout p{margin:4px 0}.document .contact-list{list-style:none;padding:0}.contact-list li{padding:13px 0;margin:0;border-bottom:1px solid var(--line)}.contact-list strong{display:block;margin-bottom:4px}.end-note{margin:50px 0 0;padding:28px 0 35px;border-top:1px solid var(--line);text-align:center}.end-star{font-size:19px;color:#7a9069}.end-note p{font:19px/1.5 var(--serif);color:var(--muted);margin:8px 0 14px}.end-note a{font-size:12px;text-decoration:none}.footer{display:flex;justify-content:space-between;gap:15px;border-top:1px solid var(--line);padding-block:21px 28px;color:var(--muted);font-size:11px}.skip-link{position:absolute;top:-100px;left:15px;background:var(--white);padding:10px 15px;z-index:2}.skip-link:focus{top:10px}html[lang|=zh] h1{font-size:clamp(32px,4.6vw,49px);letter-spacing:1px;line-height:1.4}html[lang|=zh] .document h2{font-size:23px;line-height:1.5}
@media(max-width:760px){.shell{width:calc(100% - 40px)}.header{padding-block:20px}.hero{padding:35px 0 26px}.intro{font-size:15px}.tabs{gap:4px}.tabs a{flex:1;padding-inline:10px}.draft{margin:20px 0 25px;padding:14px}.document-grid{grid-template-columns:minmax(0,1fr);gap:25px}.overview{position:static;padding:0}.overview>.eyebrow{display:none}.overview dl{display:grid;grid-template-columns:1fr 1fr;gap:0 22px}.overview dt{grid-row:auto;margin-top:0}.overview dt:nth-of-type(1){grid-row:1;grid-column:1}.overview dd:nth-of-type(1){grid-row:2;grid-column:1}.overview dt:nth-of-type(2){grid-row:1;grid-column:2}.overview dd:nth-of-type(2){grid-row:2;grid-column:2}.overview dt:nth-of-type(3){grid-row:3;grid-column:1;margin-top:14px}.overview dd:nth-of-type(3){grid-row:4;grid-column:1}.overview dt:nth-of-type(4){grid-row:3;grid-column:2;margin-top:14px}.overview dd:nth-of-type(4){grid-row:4;grid-column:2}.overview .small{margin:14px 0 0;max-width:440px}.document{padding:24px 21px;border-radius:9px}.document h2{font-size:23px}.document p,.document ul,.document ol{font-size:14px}.end-note{margin-top:30px}.footer{flex-direction:column;gap:3px}.brand{font-size:31px}.brand-mark{width:37px;height:42px;font-size:31px}}
@media print{body{background:white;color:#222;font-size:11pt}.shell{width:100%}.header{padding:10px 0}.language,.tabs,.overview,.end-note,.skip-link{display:none}.hero{padding:22px 0}.document-grid{display:block}.document{padding:0;border:0;box-shadow:none}.draft{margin:15px 0}.document h2{break-after:avoid}.placeholder{border:1px dashed #777}.footer{margin-top:25px}.document a{color:inherit}}

.language-options{display:flex;gap:18px;flex-wrap:wrap;justify-content:flex-end}