:root{--gc-blue:#26374a;--gc-accent:#af3c43;--link:#284162;--bg:#f5f6f7;--card:#fff;--border:#d9dce0;--ok:#1b6b44;--warn:#9a4d00;--bad:#a12622;--muted:#5c6570}
*{box-sizing:border-box}
body{margin:0;font-family:"Segoe UI",Arial,sans-serif;background:var(--bg);color:#222;font-size:14px}
header{background:var(--gc-blue);color:#fff;padding:14px 20px}
header h1{margin:0;font-size:19px;font-weight:600}
header .sub{font-size:12px;opacity:.85;margin-top:3px}
#disclaimer{display:flex;gap:5px 16px;flex-wrap:wrap;align-items:center;padding:6px 20px;background:#fff8e6;border-bottom:1px solid var(--border);font-size:11.5px;color:var(--muted);line-height:1.5}
#disclaimer a{white-space:nowrap;font-weight:600}
#bar{display:flex;gap:10px;flex-wrap:wrap;align-items:center;padding:12px 20px;background:#fff;border-bottom:1px solid var(--border);position:sticky;top:0;z-index:5}
#q{flex:1 1 320px;padding:9px 12px;font-size:15px;border:1.5px solid var(--gc-blue);border-radius:4px}
select,label.chk{padding:8px 10px;border:1px solid var(--border);border-radius:4px;background:#fff;font-size:13px}
label.chk{display:flex;align-items:center;gap:5px;cursor:pointer;user-select:none}
#counts{font-size:12px;color:var(--muted);margin-left:auto}
#about-btn{background:none;border:1px solid var(--border);border-radius:4px;padding:8px 10px;cursor:pointer;font-size:13px}
main{display:flex;height:calc(100vh - 156px)}
#list{width:46%;min-width:360px;overflow-y:auto;border-right:1px solid var(--border);background:#fff}
#detail{flex:1;overflow-y:auto;padding:18px 22px}
.chaprow{padding:9px 14px;border-bottom:1px solid #eef0f2;cursor:pointer;display:flex;gap:10px;align-items:baseline}
.chaprow:hover{background:#eef3f8}
.chaprow .cnum{font-family:Consolas,monospace;font-weight:700;color:var(--gc-blue);width:34px}
.chaprow .ctitle{flex:1}
.chaprow .cmeta{font-size:11px;color:var(--muted);white-space:nowrap}
.back{padding:9px 14px;background:#eef3f8;border-bottom:1px solid var(--border);cursor:pointer;font-weight:600;color:var(--gc-blue);position:sticky;top:0}
.back:hover{background:#dce8f5}
.hdr4{padding:9px 14px 7px;background:#f2f4f6;border-bottom:1px solid var(--border);font-weight:700;color:var(--gc-blue)}
.hdr4.clk{cursor:pointer;display:flex;gap:8px;align-items:baseline}
.hdr4.clk:hover{background:#e6ebf0}
.hdr4 .car{font-size:10px;width:12px;display:inline-block;transition:transform .15s}
.hdr4.open .car{transform:rotate(90deg)}
.hdr4 .code{font-family:Consolas,monospace;margin-right:8px}
.hdr4 .htxt{flex:1}
.hdr4 .chip{font-weight:400;font-size:11px;color:var(--muted);white-space:nowrap}
.hdrsub{padding:6px 14px 6px 30px;color:#555;font-size:12.5px;border-bottom:1px solid #f2f4f6;background:#fafbfc}
.hdrsub .code{font-family:Consolas,monospace;color:#888;margin-right:6px}
.hdrsub em{color:#333}
.hdrsub .chip{font-size:11px;color:var(--muted)}
.expctl{padding:5px 14px;font-size:12px;color:var(--link);border-bottom:1px solid #eef0f2;background:#fff}
.expctl a{cursor:pointer;margin-right:14px}
.sect{border-left:3px solid #e3e7eb}
.row{padding:7px 14px 7px 30px;border-bottom:1px solid #eef0f2;cursor:pointer;display:flex;gap:8px;align-items:baseline}
.row.ten{padding-left:48px}
.row .ctx{color:var(--muted);font-weight:400;font-style:italic}
mark{background:#ffe27a;padding:0;border-radius:2px}
.tip{border-bottom:1px dotted #888;cursor:help;position:relative}
.tip:hover::after{content:attr(data-tip);position:absolute;bottom:130%;left:0;background:var(--gc-blue);color:#fff;padding:7px 10px;border-radius:4px;width:280px;font-size:11.5px;font-weight:400;font-style:normal;line-height:1.45;z-index:30;white-space:normal;box-shadow:0 2px 8px rgba(0,0,0,.25)}
.row:hover{background:#eef3f8}
.row.sel{background:#dce8f5}
.row .code{font-family:Consolas,monospace;font-weight:600;color:var(--gc-blue);white-space:nowrap}
.row .desc{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:#333}
.badge{font-size:10px;padding:1px 6px;border-radius:8px;white-space:nowrap;font-weight:600}
.b-ctl{background:#fde8e8;color:var(--bad)}
.b-ctlp{background:#fdf1f1;color:#c07a7a}
.b-sur{background:#fff2e2;color:var(--warn)}
h2.codehdr{font-family:Consolas,monospace;color:var(--gc-blue);margin:0 0 2px;font-size:22px}
.crumb{font-size:12px;color:var(--muted);margin-bottom:10px;line-height:1.6}
.crumb b{font-family:Consolas,monospace}
.card{background:var(--card);border:1px solid var(--border);border-radius:6px;padding:14px 16px;margin:12px 0}
.card h3{margin:0 0 8px;font-size:14px;color:var(--gc-blue);text-transform:uppercase;letter-spacing:.4px}
table{border-collapse:collapse;width:100%;font-size:13px}
th,td{text-align:left;padding:4px 8px;border-bottom:1px solid #eef0f2;vertical-align:top}
th{color:var(--muted);font-weight:600;font-size:12px}
tr.hl{background:#fff8d9}
.rate-free{color:var(--ok);font-weight:600}
.rate-duty{color:var(--bad);font-weight:600}
.pill{display:inline-block;font-size:11px;background:#eef0f2;border-radius:9px;padding:1px 8px;margin:1px 3px 1px 0}
.alert{border-left:4px solid;padding:10px 12px;margin:8px 0;border-radius:0 4px 4px 0;background:#fff}
.alert.sur{border-color:var(--warn);background:#fffaf3}
.alert.ctl{border-color:var(--bad);background:#fdf7f7}
.alert.req{border-color:var(--ok);background:#f7fbf8}
.alert h4{margin:0 0 4px;font-size:13.5px}
.alert p{margin:3px 0;font-size:12.5px;line-height:1.45}
.alert .meta{color:var(--muted);font-size:11.5px}
a{color:var(--link)}
ol.guide{padding-left:22px;margin:6px 0}
ol.guide li{margin:8px 0;line-height:1.55}
ol.guide li b{color:var(--gc-blue)}
.tag{font-size:10px;font-weight:700;padding:1px 6px;border-radius:3px;vertical-align:2px;margin-right:4px;background:var(--gc-accent);color:#fff}
.small{font-size:12px;color:var(--muted)}
#empty{color:var(--muted);text-align:center;margin-top:80px;padding:0 30px;line-height:1.7}
#modal{position:fixed;inset:0;background:rgba(0,0,0,.45);display:none;align-items:flex-start;justify-content:center;z-index:20;padding:40px 16px}
#modal .inner{background:#fff;max-width:820px;max-height:85vh;overflow-y:auto;border-radius:8px;padding:22px 26px}
#loading{padding:60px;text-align:center;color:var(--muted);font-size:15px;width:100%}
.origin-note{font-size:12px;background:#eef3f8;border-radius:4px;padding:6px 10px;margin:6px 0}
details.exp{margin:2px 0}
details.exp summary{cursor:pointer;color:var(--link);font-size:11.5px}
details.exp div{font-size:11.5px;color:#444;padding:4px 0 2px;line-height:1.5}
@media(max-width:900px){main{flex-direction:column;height:auto}#list{width:100%;max-height:45vh}#detail{padding:14px}}
.b-site{background:#e7ecf3;color:var(--gc-blue)}
.b-tariff{background:#e6f2ea;color:var(--ok)}
.b-trade{background:#eee7f6;color:#5b3a94}
.b-catch{background:#eef0f2;color:var(--muted)}
.tl-main{display:block;height:auto;max-width:820px;margin:0 auto;padding:22px 20px 60px}
.tl-h{margin:4px 0 6px;color:var(--gc-blue)}
.tl-intro{margin:0 0 22px}
.tl-item{display:flex;gap:18px;padding:16px 0;border-bottom:1px solid var(--border)}
.tl-date{width:100px;flex:none;color:var(--muted);font-size:12.5px;padding-top:2px}
.tl-body p{margin:6px 0 4px;line-height:1.55}
.tl-title{display:block;margin-top:6px;font-size:15px;color:#222}
#tl-loading{padding:40px 0;color:var(--muted)}