:root{--bg:#EFE6D0;--deep:#DDD2B6;--paper:#F7F1E0;--soft:#E8DDC4;--ink:#12100A;--text:#262014;--muted:#564A30;--light:#766844;--gold:#4A3A12;--accent:#A88830;--border:rgba(18,16,10,.12);--focus:rgba(74,58,18,.5);--shadow:0 12px 28px rgba(18,16,10,.10)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei",sans-serif;font-size:15px;line-height:1.7;overflow-x:hidden}body.locked{overflow:hidden}a{color:inherit;text-decoration:none}button{font:inherit}.wrap{width:min(960px,calc(100% - 32px));margin:0 auto}.top-shell{position:fixed;z-index:50;top:0;left:0;right:0}.microbar{height:20px;background:var(--ink);color:var(--accent);font-size:12px}.micro-inner{display:flex;align-items:center;justify-content:space-between;height:20px}.text-button{border:0;background:transparent;color:var(--accent);padding:0 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var(--gold)}.method-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}.topic-list{display:grid;gap:12px}.topic-row{display:grid;grid-template-columns:180px 1fr;background:var(--paper);border:1px solid var(--border)}.topic-row strong{padding:18px;background:var(--ink);color:var(--paper)}.topic-row div{padding:18px}.center-card{max-width:760px;margin:0 auto;text-align:center;background:var(--paper);border:1px solid var(--border);padding:28px}.wrap-image-flow{max-width:760px;margin:auto}.wrap-image-flow .media-slot{float:right;width:44%;height:300px;margin:0 0 18px 24px}.wrap-image-flow:after{content:"";display:block;clear:both}.terms{display:grid;gap:14px}.term{background:var(--paper);border-left:4px solid var(--gold);padding:18px}.faq{display:grid;gap:12px}.faq article{background:var(--paper);padding:18px;border:1px solid var(--border)}.faq h2{font-size:16px;margin:0 0 8px}.site-footer{background:var(--ink);color:var(--bg);border-top:1px solid var(--accent);padding:34px 0 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var(--gold);box-shadow:var(--shadow);transform:translate(110%,110%);visibility:hidden;pointer-events:none;transition:.24s}.fold-panel.open{transform:translate(0,0);visibility:visible;pointer-events:auto}.fold-head{display:flex;align-items:center;justify-content:space-between;padding:12px;border-bottom:1px solid var(--border)}.fold-brand{display:flex;align-items:center;gap:8px}.fold-head button,.search-head button{min-height:40px;border:1px solid var(--gold);background:var(--paper);cursor:pointer}.fold-scroll{max-height:300px;overflow:auto;padding:10px}.fold-group{margin-bottom:14px}.fold-group h2{font-size:13px;margin:0 0 6px;color:var(--gold)}.fold-group a{display:block;padding:7px 0;border-bottom:1px solid var(--border)}.fold-group b{display:block;font-size:13px}.fold-group 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