@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+SC:wght@400;500;600;700&display=swap');
:root{--page-width:1000px;--text:#333;--secondary:#666;--muted:#999;--blue:#1677ff;--border:#e9edf2;--bg:#f5f6f8}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font-family:"Noto Sans SC","Source Han Sans SC","Microsoft YaHei",sans-serif;font-size:16px;line-height:1.9;-webkit-font-smoothing:antialiased}a{text-decoration:none;color:inherit}
.site-header{position:fixed;top:0;left:0;right:0;z-index:1000;height:64px;background:rgba(255,255,255,.86);border-bottom:1px solid rgba(225,229,234,.78);box-shadow:0 1px 10px rgba(0,0,0,.035);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px)}
.header-inner{width:min(var(--page-width),calc(100% - 40px));height:64px;margin:0 auto;display:flex;align-items:center;justify-content:space-between}.brand{display:flex;align-items:center;gap:9px;height:64px;color:#333;font-size:17px;font-weight:600;white-space:nowrap}.brand img{width:34px;height:34px;display:block;object-fit:contain}.download-btn{height:36px;padding:0 18px;border-radius:4px;display:inline-flex;align-items:center;justify-content:center;color:#fff;background:var(--blue);font-size:14px;font-weight:500;line-height:1}.download-btn:hover{background:#0f65d8}
.page{width:min(var(--page-width),calc(100% - 40px));margin:92px auto 60px}.article-card{background:#fff;border:1px solid var(--border);border-radius:10px;overflow:hidden}.article-header{width:min(900px,calc(100% - 48px));margin:0 auto;padding:42px 0 12px}.article-title{margin:0;font-size:30px;line-height:1.45;font-weight:700;text-align:left;color:#222}.article-subtitle{margin-top:10px;color:#999;font-size:14px;line-height:1.7;font-weight:400;text-align:left}.article-body{width:min(900px,calc(100% - 48px));margin:0 auto;padding:0 0 58px}.article-body p{margin:25px 0;color:#444;font-size:16px;line-height:2;text-align:left}.article-body strong{font-weight:700}.article-body figure{margin:28px 0 34px;text-align:center}.article-body figure img{display:block;width:auto;max-width:100%;max-height:700px;margin:0 auto;border:1px solid #e9e9e9;border-radius:3px;background:#fff}.tip{margin:25px 0;padding:17px 21px;background:#f7fbff;border:1px solid #dceeff;border-left:3px solid var(--blue);border-radius:4px}.tip-title{margin:0 0 6px;color:#1769d1;font-size:15px;font-weight:700;line-height:1.6}.tip p{margin:0;color:#555;font-size:14px;line-height:1.85}.guide-tip{margin-top:18px;margin-bottom:28px}.summary-tip{margin-top:40px;padding:23px 25px;background:#f8fbff;border:1px solid #dce8f5;border-radius:5px}.summary-tip .tip-title{font-size:17px;color:#222}.summary-tip p{margin:0;color:#444;font-size:15px;line-height:1.95}
@media(max-width:760px){.site-header,.header-inner{height:58px}.header-inner{width:calc(100% - 24px)}.brand{height:58px;font-size:14px;gap:7px}.brand img{width:30px;height:30px}.download-btn{height:34px;padding:0 13px;font-size:13px}.page{width:100%;margin:78px auto 30px}.article-card{border-left:0;border-right:0;border-radius:10px}.article-header{width:calc(100% - 32px);padding:28px 0 10px}.article-title{font-size:24px}.article-body{width:calc(100% - 32px);padding-bottom:35px}.article-body p{font-size:15px;line-height:1.9;margin:21px 0}.article-body figure{margin:22px 0 28px}.tip{padding:15px 16px;margin:23px 0}}