*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
:root{--primary:#1a73e8;--primary-light:#e8f0fe;--sidebar-w:300px;--header-h:56px;--bg:#fff;--sidebar-bg:#f8f9fa;--border:#e0e0e0;--text:#202124;--text-secondary:#5f6368;--code-bg:#f6f8fa;--json-key:#005cc5;--json-string:#22863a;--json-number:#e36209;--json-bool:#d73a49;--json-comment:#6a737d;--json-bracket:#24292e}
html{scroll-behavior:smooth;font-size:15px}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,"PingFang SC","Microsoft YaHei",sans-serif;color:var(--text);line-height:1.7;background:var(--bg)}

.header{position:fixed;top:0;left:0;right:0;height:var(--header-h);background:#fff;border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;padding:0 24px;z-index:1000;box-shadow:0 1px 3px rgba(0,0,0,0.05)}
.header-left{display:flex;align-items:center;gap:16px}
.header-logo{font-size:18px;font-weight:700;color:var(--primary);display:flex;align-items:center;gap:8px}
.header-logo svg{width:28px;height:28px}
.header-controls{display:flex;align-items:center;gap:12px}
.protocol-tabs{display:flex;background:#f1f3f4;border-radius:8px;overflow:hidden;border:1px solid var(--border)}
.protocol-tab{padding:6px 16px;border:none;background:transparent;cursor:pointer;font-size:13px;font-weight:500;color:#5f6368;transition:all .2s;white-space:nowrap}
.protocol-tab.active{background:var(--primary);color:#fff}
.protocol-tab:hover:not(.active){background:#e0e0e0}
.lang-switch{display:flex;background:#f1f3f4;border-radius:20px;overflow:hidden}
.lang-btn{padding:6px 18px;border:none;background:transparent;cursor:pointer;font-size:13px;font-weight:500;color:#5f6368;transition:all .2s}
.lang-btn.active{background:var(--primary);color:#fff;border-radius:20px}
.lang-btn:hover:not(.active){background:#e0e0e0}
.header-meta{font-size:14px;font-weight:700;color:var(--text)}

.sidebar{position:fixed;top:var(--header-h);left:0;bottom:0;width:var(--sidebar-w);background:var(--sidebar-bg);border-right:1px solid var(--border);overflow-y:auto;padding:16px 0;z-index:100}
.sidebar::-webkit-scrollbar{width:4px}
.sidebar::-webkit-scrollbar-thumb{background:#c0c0c0;border-radius:4px}
.toc-item{display:block;padding:7px 16px 7px 24px;color:var(--text-secondary);text-decoration:none;font-size:13.5px;cursor:pointer;border-left:3px solid transparent;transition:all .15s;line-height:1.5}
.toc-item:hover{background:var(--primary-light);color:var(--primary)}
.toc-item.active{background:var(--primary-light);color:var(--primary);border-left-color:var(--primary);font-weight:600}
.toc-h2{font-weight:600;color:var(--text);padding-left:20px;font-size:14px;margin-top:4px}
.toc-h3{padding-left:36px}
.toc-h4{padding-left:50px;font-size:12.5px}
.toc-section{overflow:hidden;transition:max-height .3s ease}
.toc-section.collapsed{max-height:0!important}
.toc-toggle{display:flex;align-items:center;gap:4px;cursor:pointer;user-select:none}
.toc-toggle .arrow{display:inline-block;width:16px;text-align:center;transition:transform .2s;font-size:10px}
.toc-toggle .arrow.collapsed{transform:rotate(-90deg)}

.main{margin-left:var(--sidebar-w);margin-top:var(--header-h);padding:40px 60px 80px;max-width:960px;min-height:calc(100vh - var(--header-h))}

h1{font-size:28px;font-weight:700;margin-bottom:8px;color:var(--text);border-bottom:2px solid var(--primary);padding-bottom:12px}
h2{font-size:22px;font-weight:700;margin:40px 0 16px;color:#1a1a1a;padding-bottom:8px;border-bottom:1px solid #eee;scroll-margin-top:calc(var(--header-h) + 20px)}
h3{font-size:17px;font-weight:600;margin:28px 0 12px;color:#2c3e50;scroll-margin-top:calc(var(--header-h) + 20px)}
h4{font-size:15px;font-weight:600;margin:20px 0 10px;color:#34495e;scroll-margin-top:calc(var(--header-h) + 20px);background:#f8f9fa;padding:8px 12px;border-left:3px solid var(--primary);border-radius:0 4px 4px 0}
p{margin:8px 0}
strong{color:#1a1a1a}
hr{border:none;border-top:1px solid #eee;margin:24px 0}
blockquote{background:#fff3e0;border-left:4px solid #ff9800;padding:12px 16px;margin:12px 0;border-radius:0 6px 6px 0;font-size:14px}
ul,ol{padding-left:24px;margin:8px 0}
li{margin:4px 0}

table{width:100%;border-collapse:collapse;margin:12px 0;font-size:13.5px;border-radius:6px;overflow:hidden;box-shadow:0 0 0 1px #e0e0e0}
th{background:#f1f3f4;font-weight:600;text-align:left;padding:10px 14px;border-bottom:2px solid #ddd;color:#333;white-space:nowrap}
td{padding:8px 14px;border-bottom:1px solid #f0f0f0}
tr:hover td{background:#fafbff}
tr:last-child td{border-bottom:none}
td code{background:#e8f0fe;padding:2px 6px;border-radius:3px;font-size:12.5px;color:var(--primary)}

pre{background:var(--code-bg);border:1px solid #e1e4e8;border-radius:6px;padding:16px;margin:12px 0;overflow-x:auto;position:relative;font-size:13px;line-height:1.6}
pre code{font-family:"SF Mono","Fira Code",Consolas,"Courier New",monospace;background:none;padding:0;color:inherit}
code{font-family:"SF Mono","Fira Code",Consolas,"Courier New",monospace;background:var(--code-bg);padding:2px 5px;border-radius:3px;font-size:13px}

.json-key{color:var(--json-key);font-weight:500}
.json-string{color:var(--json-string)}
.json-number{color:var(--json-number)}
.json-bool{color:var(--json-bool);font-weight:500}
.json-null{color:var(--json-bool);font-style:italic}
.json-comment{color:var(--json-comment);font-style:italic}
.json-bracket{color:var(--json-bracket);font-weight:600}
.json-label{position:absolute;top:4px;right:8px;font-size:10px;background:#e1e4e8;padding:2px 8px;border-radius:3px;color:#666;font-family:sans-serif;text-transform:uppercase;letter-spacing:.5px}

.search-box{margin:0 16px 12px;position:relative}
.search-box input{width:100%;padding:8px 12px 8px 32px;border:1px solid #ddd;border-radius:6px;font-size:13px;outline:none;background:#fff;transition:border-color .2s}
.search-box input:focus{border-color:var(--primary)}
.search-box svg{position:absolute;left:8px;top:50%;transform:translateY(-50%);width:16px;height:16px;color:#999}

@media(max-width:1024px){.sidebar{width:240px}.main{margin-left:240px;padding:30px 30px 60px}}
@media(max-width:768px){.sidebar{display:none}.main{margin-left:0;padding:20px 16px 40px}.header-controls{gap:6px}.protocol-tabs{font-size:11px}.protocol-tab{padding:4px 8px}.lang-btn{padding:4px 12px}}

.not-recommended{color:#999!important;opacity:.92}
.not-recommended h3,.not-recommended h4{color:#999!important}
.not-recommended strong{color:#999!important}
.not-recommended code{color:#999!important;background:#f0f0f0!important}
.not-recommended pre{border-color:#e0e0e0!important;opacity:.88}
.not-recommended table{box-shadow:0 0 0 1px #ddd!important}
.not-recommended th{color:#999!important}
.not-recommended td{color:#999!important}
.not-recommended blockquote{background:#f5f5f5!important;border-left-color:#ccc!important}


.resource-link{color:#00766f;font:600 13px Arial,sans-serif;text-decoration:underline;white-space:nowrap}
.header-controls{flex-wrap:wrap}.header-left{min-width:0}
.main{min-width:0}table{display:block;max-width:100%;overflow-x:auto}
@media(max-width:768px){.header{position:static;height:auto;min-height:56px;flex-wrap:wrap;gap:8px;padding:12px 16px}.header-left{flex-wrap:wrap;gap:8px}.main{margin-top:0}.header-logo{font-size:16px}.header-meta{font-size:12px}}
@media print{
 @page{size:A4;margin:16mm 13mm 18mm}
 html{font-size:10pt;scroll-behavior:auto}body{font:10pt/1.45 Arial,sans-serif;color:#172b3a;background:#fff}
 .header,.sidebar,.copy-btn,.json-label,.online-actions{display:none!important}
 .main{margin:0!important;padding:0!important;width:auto!important;max-width:none!important;min-height:0}
 h1{font-size:22pt}h2{font-size:16pt;margin-top:22pt}h3{font-size:12pt}h4{font-size:10.5pt}
 h1,h2,h3,h4{break-after:avoid-page}p,li{orphans:3;widows:3}
 p{margin:6px 0}.document-meta{break-inside:avoid-page;font-size:8.5pt}.document-meta p{margin:3px 0}
 table{display:table!important;table-layout:fixed;width:100%;box-shadow:none;border:1px solid #d0d7de;font-size:8pt;overflow:visible}
 thead{display:table-header-group}tr{break-inside:avoid-page}th,td{padding:5px 6px;white-space:normal!important;overflow-wrap:anywhere;word-break:normal}
 pre{font:8pt/1.4 Consolas,'Courier New',monospace;white-space:pre-wrap!important;overflow-wrap:anywhere;word-break:break-word;overflow:visible;padding:8px;break-inside:auto}
 pre code{white-space:inherit!important;font-size:inherit;overflow-wrap:anywhere}code{font-size:8pt;overflow-wrap:anywhere}
 .not-recommended{opacity:1!important;color:#4b5563!important}.not-recommended pre{opacity:1!important}
 .pdf-part{break-before:page}.pdf-part:first-child{break-before:auto}
}