:root{--ink:#172d4e;--muted:#64748b;--line:#dce5ed;--green:#09865e;--pale:#eaf7f1;--bg:#f7fafc;--red:#c2410c;--r:10px}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;font:15px/1.65 -apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Segoe UI",sans-serif;color:var(--ink);background:var(--bg)}
a{color:var(--green);text-decoration:none}a:hover{text-decoration:underline}
.wrap{max-width:1080px;margin:0 auto;padding:0 18px}
.top{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:10}
.top .wrap{display:flex;align-items:center;gap:16px;min-height:54px;flex-wrap:wrap}
.brand{font-weight:700;color:var(--ink);font-size:16px}
.top nav{display:flex;gap:14px;flex-wrap:wrap;margin-left:auto}
.top nav a{color:var(--muted)}.top nav a:hover{color:var(--green)}
.crumbs{margin:16px 0 0;color:var(--muted);font-size:13px}.crumbs i{margin:0 6px;font-style:normal;color:#b6c2cf}
h1{font-size:28px;line-height:1.3;margin:18px 0 6px}
h2{font-size:20px;margin:34px 0 12px}
h2 small{font-size:13px;color:var(--muted);font-weight:400}
h2 a{color:var(--ink)}
.lead{color:var(--muted);margin:0 0 14px;font-size:16px}
.muted{color:var(--muted)}
.badges{display:flex;gap:8px;flex-wrap:wrap;align-items:center}
.badges span{font-size:12px;padding:2px 9px;border-radius:99px;background:#eef2f6;color:var(--muted)}
.badges .ok{background:var(--pale);color:var(--green)}
.share{margin-left:auto;font-size:13px;border:1px solid var(--line);background:#fff;color:var(--ink);border-radius:99px;padding:3px 12px;cursor:pointer}
.share:hover{border-color:var(--green);color:var(--green)}
.panel{background:#fff;border:1px solid var(--line);border-radius:14px;padding:20px;margin:18px 0}
.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:12px}
.card{display:flex;flex-direction:column;gap:4px;background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:14px 16px;color:var(--ink);position:relative}
.card:hover{border-color:var(--green);text-decoration:none;box-shadow:0 4px 14px rgba(23,45,78,.06)}
.card span{color:var(--muted);font-size:13px;line-height:1.5}
.card em{position:absolute;top:12px;right:12px;font-style:normal;font-size:11px;color:var(--green);background:var(--pale);padding:0 6px;border-radius:4px}
.chips{display:flex;flex-wrap:wrap;gap:8px}.chips a{background:#fff;border:1px solid var(--line);border-radius:99px;padding:4px 14px;color:var(--ink)}
.search{width:100%;max-width:520px;font-size:16px;padding:10px 14px;border:1px solid var(--line);border-radius:var(--r);margin:4px 0 6px;background:#fff}
.search:focus{outline:2px solid var(--pale);border-color:var(--green)}
.steps{padding-left:22px}.steps li{margin:4px 0}
.faq dt{font-weight:600;margin-top:12px}.faq dd{margin:4px 0 0;color:var(--muted)}
.about{color:#334155}
.guide{color:#334155}.guide p{margin:6px 0}.guide ul{padding-left:22px;margin:6px 0}.guide li{margin:4px 0}
.guide .sample{background:#f6f8fa;border:1px solid var(--line);border-radius:var(--r);padding:12px 14px;font-size:13px;line-height:1.7;white-space:pre-wrap;word-break:break-word;overflow-x:auto}
.cta-box{margin:36px 0 10px;background:var(--pale);border:1px solid #cdeee0;border-radius:14px;padding:18px 20px;display:flex;gap:14px;align-items:center;flex-wrap:wrap}
.cta-box span{color:#3f5f55;flex:1;min-width:220px}
.foot{margin-top:40px;border-top:1px solid var(--line);background:#fff;color:var(--muted);font-size:13px;padding:18px 0}
.foot p{margin:4px 0}
/* 控件 */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;border:1px solid var(--line);background:#fff;color:var(--ink);border-radius:8px;padding:7px 16px;font:inherit;font-size:14px;cursor:pointer;text-decoration:none;white-space:nowrap}
.btn:hover{border-color:var(--green);color:var(--green);text-decoration:none}
.btn.primary{background:var(--green);border-color:var(--green);color:#fff}
.btn.primary:hover{background:#077552;color:#fff}
.btn:disabled{opacity:.5;cursor:not-allowed}
.row{display:flex;gap:10px;flex-wrap:wrap;align-items:center;margin:10px 0}
.grow{flex:1}
label.f{display:inline-flex;align-items:center;gap:6px;font-size:14px;color:#334155}
input[type=text],input[type=number],input[type=search],input[type=url],select,textarea{font:inherit;font-size:14px;color:var(--ink);border:1px solid var(--line);border-radius:8px;padding:6px 10px;background:#fff}
input:focus,select:focus,textarea:focus{outline:2px solid var(--pale);border-color:var(--green)}
textarea{width:100%;min-height:200px;resize:vertical;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:13px;line-height:1.5}
.mono{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}
.cols{display:grid;grid-template-columns:1fr 1fr;gap:14px}
@media(max-width:760px){.cols{grid-template-columns:1fr}h1{font-size:23px}.top nav{margin-left:0}}
.drop{border:2px dashed #c4d3e0;border-radius:12px;padding:30px 16px;text-align:center;color:var(--muted);cursor:pointer;background:#fbfdfe;transition:.15s}
.drop:hover,.drop.over{border-color:var(--green);background:var(--pale);color:var(--green)}
.drop b{display:block;color:var(--ink);font-size:16px;margin-bottom:4px}
.out{background:#f8fafc;border:1px solid var(--line);border-radius:8px;padding:10px 12px;white-space:pre-wrap;word-break:break-all;font-family:ui-monospace,Menlo,Consolas,monospace;font-size:13px;min-height:40px}
.err{color:var(--red);font-size:14px}
.okmsg{color:var(--green);font-size:14px}
.list{list-style:none;padding:0;margin:10px 0}
.list li{display:flex;align-items:center;gap:10px;border:1px solid var(--line);border-radius:8px;padding:8px 10px;margin:6px 0;background:#fff}
.thumbs{display:grid;grid-template-columns:repeat(auto-fill,minmax(130px,1fr));gap:10px}
.thumbs figure{margin:0;border:1px solid var(--line);border-radius:8px;padding:6px;background:#fff;text-align:center;font-size:12px;color:var(--muted)}
.thumbs img,.thumbs canvas{max-width:100%;display:block;margin:0 auto 4px}
.progress{height:6px;background:#eef2f6;border-radius:99px;overflow:hidden}.progress i{display:block;height:100%;background:var(--green);width:0;transition:width .2s}
.toast{position:fixed;left:50%;bottom:28px;transform:translateX(-50%);background:var(--ink);color:#fff;padding:8px 16px;border-radius:8px;font-size:14px;opacity:0;pointer-events:none;transition:.2s;z-index:99}
.toast.show{opacity:.95}
.checker{background:repeating-conic-gradient(#e5e7eb 0 25%,#fff 0 50%) 0 0/16px 16px}
table.t{border-collapse:collapse;width:100%;font-size:14px}table.t td,table.t th{border:1px solid var(--line);padding:6px 8px;text-align:left}table.t th{background:#f1f5f9}

[hidden]{display:none!important}