:root{--navy: #2b2622;--navy-2: #3a342e;--blue: #6a5d52;--teal: #6a5d52;--orange: #c45c26;--gold: #c98a3e;--text: #2a2622;--muted: #6a6158;--line: #d8d0c6;--bg: #f3f0eb;--white: #ffffff;--red: #b42318;--green: #6a5d52}*{box-sizing:border-box}html,body,#app{height:100%;margin:0}body{font-family:Microsoft YaHei,PingFang SC,sans-serif;color:var(--text);background:var(--bg)}a{color:inherit;text-decoration:none}button,input,select,textarea{font-family:inherit}.btn{border:1px solid var(--line);border-radius:0;padding:6px 12px;cursor:pointer;font-size:12px;font-weight:500;color:var(--navy);background:#fff}.btn:hover{background:#f6f2ec}.btn-primary{color:#fff;background:var(--orange);border-color:var(--orange)}.btn-primary:hover{background:#a84d1f}.btn-teal,.btn-navy{color:#fff;background:var(--navy);border-color:var(--navy)}.btn-teal:hover,.btn-navy:hover{background:var(--navy-2)}.btn-ghost{color:var(--navy);background:#fff;border-color:var(--line)}.btn:disabled{opacity:.45;cursor:not-allowed}.field{display:flex;flex-direction:column;gap:6px}.field label{font-size:12px;color:var(--muted)}.field input,.field select,.field textarea{border:1px solid var(--line);border-radius:0;padding:8px 10px;background:#fff;font-size:13px}.card{background:#fff;border:1px solid var(--line);border-radius:0}.page-title{margin:0 0 4px;font-size:22px;color:var(--navy)}.page-sub{margin:0 0 18px;color:var(--muted);font-size:13px}.table-wrap{overflow:auto}table{width:100%;border-collapse:collapse;font-size:13px}th,td{padding:10px 12px;border-bottom:1px solid var(--line);text-align:left}th{color:var(--muted);font-weight:600;background:#f6f2ec}tr:hover td{background:#faf7f3}.tag{display:inline-block;padding:2px 8px;border-radius:0;font-size:12px;font-weight:600}.tag-pending{background:#fdf0e6;color:var(--orange)}.tag-ok{background:#f4efe6;color:var(--orange)}.tag-bad{background:#fae8e6;color:var(--red)}.tag-info{background:#efece7;color:var(--navy)}.tag-teal{background:#f4efe6;color:var(--gold)}.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:12px}.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}.stat{padding:16px 18px}.stat b{display:block;font-size:26px;color:var(--navy);margin-top:6px}.stat span{color:var(--muted);font-size:13px}.tabs{display:flex;gap:4px;margin-bottom:14px;border-bottom:1px solid var(--line)}.tab{background:none;border:0;border-bottom:2px solid transparent;padding:8px 16px;margin-bottom:-1px;cursor:pointer;font-size:14px;font-weight:600;color:var(--muted)}.tab.active{color:var(--navy);border-bottom-color:var(--orange)}.preview-banner{display:flex;flex-wrap:wrap;gap:18px;padding:14px 16px;margin-bottom:12px}.preview-banner b{color:var(--navy)}.preview-skip td{background:#faf6f4;color:var(--muted)}.toolbar{display:flex;gap:10px;align-items:center;margin-bottom:14px;flex-wrap:wrap}.filters{display:flex;gap:12px;align-items:flex-end;flex-wrap:wrap;margin-bottom:14px}.filters .field{min-width:168px}.filters .field input[type=date]{min-width:150px}.muted{color:var(--muted)}.err{color:var(--red);font-size:13px}.ok{color:var(--orange);font-size:13px}.edit-table{min-height:360px;max-height:calc(100vh - 320px);overflow:auto}.edit-table table{table-layout:fixed;min-width:100%}.edit-table th,.edit-table td{padding:8px}.edit-table .col-name{width:22%}.edit-table .col-spec{width:16%}.edit-table .col-unit{width:8%}.edit-table .col-qty{width:9%}.edit-table .col-amt{width:11%}.edit-table .col-rate{width:8%}.edit-table .col-remark{width:20%}.edit-table .col-del{width:6%}.edit-table input{width:100%;min-width:0;box-sizing:border-box;padding:7px 8px;font-size:13px;border:1px solid var(--line);border-radius:0;background:#fff}.buyer-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin:12px 0 14px}.buyer-grid .field input{width:100%}.modal-edit{width:min(1280px,calc(100vw - 40px));max-height:calc(100vh - 32px);overflow:auto;display:flex;flex-direction:column}.modal-mask{position:fixed;top:0;right:0;bottom:0;left:0;background:#2b262273;display:flex;align-items:center;justify-content:center;z-index:20}.modal{width:560px;max-width:calc(100vw - 32px);padding:20px}.modal h3{margin:0 0 14px}.modal-invoice{width:920px}.invoice-thumb{width:56px;height:36px;padding:0;border:1px solid var(--line);border-radius:0;overflow:hidden;cursor:pointer;background:#fff}.invoice-thumb img,.invoice-full{display:block;width:100%}.invoice-full{border-radius:0;border:1px solid var(--line)}.row-actions{display:flex;gap:6px;align-items:center;flex-wrap:wrap}.login-page{min-height:100%;background:#2b2622;display:flex;align-items:center;justify-content:center}.login-card{width:420px;background:#3a342e;border-radius:0;padding:32px;color:#fff}.login-card h1{margin:8px 0 6px;font-size:28px}.login-card p{margin:0 0 22px;color:#d8d0c6;font-size:13px}.login-card .field input{background:#2b2622;color:#fff;border-color:#5a524a}.accounts{margin-top:18px;font-size:12px;color:#a89f94;line-height:1.7}.guide-link{display:block;margin-top:16px;text-align:center;color:#c98a3e;font-size:13px;font-weight:600}.guide-link:hover{color:#fff}.guide-page{min-height:100%;background:var(--bg);padding:0 0 48px}.guide-top{background:var(--navy);color:#fff;padding:22px 28px;display:flex;justify-content:space-between;align-items:center;gap:16px}.guide-top small{color:var(--gold);letter-spacing:1px}.guide-top h1{margin:6px 0 0;font-size:24px}.guide-block{max-width:1080px;margin:20px auto 0;padding:20px 22px;background:#fff;border:1px solid var(--line)}.guide-block h2{margin:0 0 10px;font-size:20px;color:var(--navy)}.guide-block p,.guide-block li{color:var(--muted);line-height:1.7;font-size:14px}.guide-block ol,.guide-block ul{margin:8px 0 12px;padding-left:20px}.guide-block code{background:#f6f2ec;padding:1px 6px}.guide-flow{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:14px}.guide-flow div{border:1px solid var(--line);padding:12px 14px;background:#faf7f3}.guide-flow b{display:block;color:var(--orange);margin-bottom:4px}.guide-flow span{color:var(--navy);font-weight:600}.guide-shot{display:block;width:100%;margin-top:12px;padding:0;border:1px solid var(--line);background:#f6f2ec;cursor:zoom-in;text-align:left}.guide-shot img{display:block;width:100%;height:auto;object-fit:contain}.guide-shot span{display:block;padding:8px 10px;font-size:12px;color:var(--muted)}.guide-warn{border-left:4px solid var(--orange)}.guide-mask{position:fixed;top:0;right:0;bottom:0;left:0;background:#2b2622d1;z-index:40;overflow:auto;padding:24px;display:flex;flex-direction:column;align-items:center;gap:12px}.guide-mask img{max-width:min(1400px,100%);height:auto;background:#fff}@media(max-width:800px){.guide-flow{grid-template-columns:1fr}.guide-top{flex-direction:column;align-items:flex-start}}.shell{display:flex;height:100%}.side{width:232px;background:#2b2622;color:#d8d0c6;display:flex;flex-direction:column}.brand{padding:22px 20px 16px}.brand small{color:var(--gold);letter-spacing:1px}.brand h2{margin:6px 0 0;color:#fff;font-size:18px}.nav a{display:block;padding:10px 20px;color:#d8d0c6;font-size:14px}.nav a.active,.nav a:hover{background:#3a342e;color:#fff}.userbox{margin-top:auto;padding:16px 20px 20px;border-top:1px solid #4a433c}.userbox b{color:#fff;display:block}.main{flex:1;overflow:auto;padding:22px 24px 32px}