:root{
  --red:#E63946; --red-deep:#C1121F;
  --green:#07c160; --green-deep:#05934a;
  --orange:#F97316; --orange-deep:#b45309;
  --ink:#1d2433; --sub:#6b7280;
  --bg:#f5f6fa; --card:#ffffff; --line:#eef0f4;
  --shadow:0 6px 20px rgba(20,30,60,.08);
  --wx:#07c160;
}
*{box-sizing:border-box}
body{margin:0;font-family:-apple-system,"Segoe UI",Roboto,"PingFang SC","Microsoft YaHei",sans-serif;background:var(--bg);color:var(--ink);line-height:1.55}
a{color:inherit;text-decoration:none}
.topbar{background:linear-gradient(135deg,var(--red),var(--red-deep));color:#fff;padding:13px 20px;display:flex;align-items:center;justify-content:space-between;position:sticky;top:0;z-index:10;box-shadow:var(--shadow)}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:18px}
.logo{width:32px;height:32px;border-radius:9px;background:#fff;color:var(--red);display:grid;place-items:center;font-weight:900;font-size:18px}
.brand small{font-weight:500;opacity:.85;font-size:12px}
.nav{display:flex;gap:10px;font-size:14px}
.nav a{padding:6px 13px;border-radius:8px;background:rgba(255,255,255,.16);transition:.15s}
.nav a:hover{background:rgba(255,255,255,.30)}

/* ===== 对话框模式 ===== */
.wrap{max-width:1080px;margin:0 auto;padding:22px 18px 60px}
.chat-wrap{max-width:720px}
.chat-window{background:#ebeef3;border:1px solid var(--line);border-radius:16px;overflow:hidden;box-shadow:var(--shadow);display:flex;flex-direction:column}
.chat-header{background:linear-gradient(135deg,#fff,#fff6f6);padding:14px 18px;border-bottom:1px solid var(--line)}
.ch-title{font-weight:800;font-size:17px}
.ch-sub{font-size:13px;color:var(--sub);margin-top:3px}
.ch-sub b{color:var(--red)}

.cb-tabs{display:flex;gap:8px;padding:10px 14px;background:#f3f5f9;border-bottom:1px solid var(--line)}
.cb-tab{border:1px solid var(--line);background:#fff;padding:6px 14px;border-radius:20px;font-size:13px;cursor:pointer;transition:.15s}
.cb-tab:hover{border-color:var(--red)}
.cb-tab.cur{background:var(--red);color:#fff;border-color:var(--red)}

.chat-stream{padding:16px;display:flex;flex-direction:column;gap:14px;background:#ebeef3;min-height:200px}
.msg{display:flex;gap:10px;align-items:flex-start}
.avatar{width:42px;height:42px;border-radius:10px;background:var(--wx);color:#fff;display:grid;place-items:center;font-weight:800;font-size:18px;flex:0 0 auto}
.bubble{background:#fff;border-radius:4px 14px 14px 14px;padding:12px 14px;box-shadow:0 2px 8px rgba(20,30,60,.06);max-width:88%;position:relative}
.bubble::before{content:"";position:absolute;left:-7px;top:14px;border:7px solid transparent;border-right-color:#fff;border-left:0}
.type-badge{display:inline-block;font-size:12px;font-weight:700;padding:2px 10px;border-radius:20px;margin-bottom:6px}
.t-pay{background:#fde8e8;color:var(--red-deep)}
.t-take{background:#fff3e0;color:var(--orange-deep)}
.wx-name{font-weight:800;font-size:16px;margin-bottom:6px}
.wx-id-row{display:flex;align-items:center;gap:8px;flex-wrap:wrap;background:#f6f8fa;border-radius:8px;padding:6px 10px;margin-bottom:8px}
.wx-id-label{font-size:12px;color:var(--sub)}
.wx-id{font-family:ui-monospace,Menlo,Consolas,monospace;font-weight:700;color:var(--ink);word-break:break-all}
.copy-btn{border:0;background:var(--green);color:#fff;font-size:12px;font-weight:700;padding:4px 12px;border-radius:7px;cursor:pointer;transition:.15s;margin-left:auto}
.copy-btn:hover{background:var(--green-deep)}
.copy-btn.copied{background:var(--sub)}
.amt{font-size:24px;font-weight:900;color:var(--red);margin:2px 0 6px}
.b-line{font-size:13px;color:var(--sub);margin:3px 0}
.evi{font-size:13px;color:#374151;background:#f8f9fb;border-radius:8px;padding:8px 10px;margin:8px 0 0}
.b-time{font-size:11px;color:#aab;margin-top:6px}

.chat-bar{display:flex;gap:8px;margin-top:14px}
.chat-bar input{flex:1;min-width:0;padding:11px 14px;border:1px solid var(--line);border-radius:10px;font-size:15px;outline:none}
.chat-bar input:focus{border-color:var(--red)}
.chat-bar button{padding:11px 20px;border:0;border-radius:10px;background:var(--red);color:#fff;font-weight:700;cursor:pointer;font-size:15px}
.chat-bar button:hover{background:var(--red-deep)}
.cb-expose{padding:11px 16px;border-radius:10px;background:var(--green);color:#fff;font-weight:700;font-size:15px;white-space:nowrap}
.cb-expose:hover{background:var(--green-deep)}

.empty{text-align:center;color:var(--sub);padding:40px 0}
.pager{display:flex;gap:8px;justify-content:center;margin-top:18px;flex-wrap:wrap}
.pager button{padding:8px 14px;border:1px solid var(--line);background:#fff;border-radius:8px;cursor:pointer;font-size:14px}
.pager button:disabled{opacity:.4;cursor:not-allowed}
.pager .cur{background:var(--red);color:#fff;border-color:var(--red)}

.disclaimer{margin-top:18px;background:#fff;border:1px solid var(--line);border-left:4px solid var(--red);border-radius:12px;padding:14px 16px;font-size:12px;color:#4b5563;line-height:1.7}

/* ===== 表单页 ===== */
.form-card{max-width:640px;margin:0 auto;background:var(--card);border:1px solid var(--line);border-radius:16px;padding:24px;box-shadow:var(--shadow)}
.form-card h2{margin:0 0 4px;font-size:20px}
.form-card .tip{color:var(--sub);font-size:13px;margin:0 0 18px}
.field{margin-bottom:14px}
.field label{display:block;font-size:14px;font-weight:600;margin-bottom:6px}
.field label .req{color:var(--red)}
.field input,.field textarea,.field select{width:100%;padding:10px 12px;border:1px solid var(--line);border-radius:10px;font-size:14px;font-family:inherit;outline:none}
.field input:focus,.field textarea:focus{border-color:var(--red)}
.field textarea{resize:vertical;min-height:70px}
.row{display:flex;gap:12px}.row .field{flex:1}

/* 曝光类型选择 */
.type-pick{display:flex;gap:12px;flex-wrap:wrap}
.type-opt{flex:1;min-width:200px;cursor:pointer}
.type-opt input{display:none}
.to-card{border:2px solid var(--line);border-radius:12px;padding:14px;background:#fff;transition:.15s}
.to-card b{display:block;font-size:15px;margin-bottom:3px}
.to-card span{font-size:12px;color:var(--sub)}
.type-opt:hover .to-card{border-color:var(--red)}
.type-opt.sel .to-card{border-color:var(--red);background:#fff6f6;box-shadow:0 4px 12px rgba(230,57,70,.12)}

/* OCR 识别区 */
.ocr-zone{margin-top:2px}
.ocr-drop{border:2px dashed #c7ccd6;border-radius:12px;padding:22px;text-align:center;background:#fafbfc;cursor:pointer;transition:.15s}
.ocr-drop:hover{border-color:var(--red);background:#fff6f6}
.ocr-icon{font-size:30px}
.ocr-tip{font-size:13px;color:var(--sub);margin:8px 0 12px;line-height:1.6}
.ocr-tip b{color:var(--ink)}
.ocr-btn{display:inline-block;border:0;background:var(--red);color:#fff;font-weight:700;padding:9px 20px;border-radius:9px;cursor:pointer;font-size:14px}
.ocr-btn:hover{background:var(--red-deep)}
.ocr-preview{background:#fafbfc;border:1px solid var(--line);border-radius:12px;padding:14px;text-align:center}
.ocr-preview img{max-width:140px;max-height:180px;border-radius:8px;border:1px solid var(--line)}
.ocr-status{font-size:13px;margin:10px 0;padding:8px;border-radius:8px}
.ocr-status.loading{background:#eef2ff;color:#3b4cca}
.ocr-status.ok{background:#e7f6f3;color:var(--green-deep)}
.ocr-status.err{background:#fdeaea;color:var(--red-deep)}
.ocr-clear{border:1px solid var(--line);background:#fff;padding:6px 16px;border-radius:8px;cursor:pointer;font-size:13px}

.promise{display:flex;gap:10px;align-items:flex-start;background:#fff8f8;border:1px solid #ffd9d9;border-radius:10px;padding:12px;margin:8px 0 16px;font-size:13px;color:#374151}
.promise input{margin-top:3px;width:18px;height:18px;accent-color:var(--green)}
.submit-btn{width:100%;padding:13px;border:0;border-radius:11px;background:var(--red);color:#fff;font-weight:800;font-size:16px;cursor:pointer}
.submit-btn:hover{background:var(--red-deep)}
.notice{margin-top:14px;padding:12px 14px;border-radius:10px;font-size:14px;display:none}
.notice.ok{display:block;background:#e7f6f3;color:var(--green-deep)}
.notice.err{display:block;background:#fdeaea;color:var(--red-deep)}

/* 后台 */
.login-wrap{max-width:380px;margin:60px auto}
.review-card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:16px;box-shadow:var(--shadow);margin-bottom:14px}
.review-card .rh{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:6px}
.review-card .real{font-size:12px;color:#9a3412;background:#fff3e0;padding:2px 8px;border-radius:6px;margin-left:6px}
.review-card .line{font-size:13px;margin:5px 0;color:#374151}
.review-card a{color:var(--red)}
.acts{display:flex;gap:8px;margin-top:10px}
.acts button{flex:1;padding:9px;border:0;border-radius:9px;font-weight:700;cursor:pointer;font-size:14px}
.acts .ok{background:var(--green);color:#fff}
.acts .no{background:#e5e7eb;color:#374151}
.acts .del{background:#fee2e2;color:#b91c1c}
.section-title{font-size:16px;font-weight:800;margin:6px 0 14px;display:flex;align-items:center;gap:8px}
.footer{text-align:center;color:var(--sub);font-size:12px;padding:24px}

/* 凭证图片上传 */
.upload-zone{margin-top:2px}
.upload-drop{border:2px dashed #c7ccd6;border-radius:12px;padding:18px;text-align:center;background:#fafbfc;cursor:pointer;transition:.15s}
.upload-drop:hover,.upload-drop.drag{border-color:var(--red);background:#fff6f6}
.up-icon{font-size:26px}
.up-tip{font-size:13px;color:var(--sub);margin:6px 0 10px;line-height:1.6}
.up-tip b{color:var(--ink)}
.up-btn{display:inline-block;border:0;background:var(--green);color:#fff;font-weight:700;padding:8px 18px;border-radius:9px;cursor:pointer;font-size:14px}
.up-btn:hover{background:var(--green-deep)}
.thumbs{display:flex;flex-wrap:wrap;gap:8px;margin-top:10px}
.thumb{position:relative;width:72px;height:72px;border-radius:8px;overflow:hidden;border:1px solid var(--line)}
.thumb img{width:100%;height:100%;object-fit:cover}
.thumb-x{position:absolute;top:2px;right:2px;width:18px;height:18px;border:0;border-radius:50%;background:rgba(0,0,0,.55);color:#fff;font-size:12px;line-height:18px;cursor:pointer;padding:0}

/* 凭证缩略图（公示/后台） */
.evi-imgs{display:flex;flex-wrap:wrap;gap:6px;margin:8px 0 0}
.evi-imgs a{display:block;width:84px;height:84px;border-radius:8px;overflow:hidden;border:1px solid var(--line)}
.evi-imgs img{width:100%;height:100%;object-fit:cover}
.review-card .evi-imgs a{width:120px;height:90px}

/* 顶部搜索条 */
.search-top{display:flex;gap:8px;margin-bottom:12px}
.admin-search{margin:2px 0 14px}
.admin-search input{width:100%;min-width:0;padding:11px 14px;border:1px solid var(--line);border-radius:10px;font-size:15px;outline:none;box-sizing:border-box}
.admin-search input:focus{border-color:var(--red)}
.search-top input{flex:1;min-width:0;padding:11px 14px;border:1px solid var(--line);border-radius:10px;font-size:15px;outline:none}
.search-top input:focus{border-color:var(--red)}
.search-top button{padding:11px 18px;border:0;border-radius:10px;background:var(--red);color:#fff;font-weight:700;cursor:pointer;font-size:15px}
.search-top button:hover{background:var(--red-deep)}

/* 悬浮曝光按钮（右下角） */
.fab{position:fixed;right:18px;bottom:22px;width:56px;height:56px;border-radius:50%;background:var(--red);color:#fff;font-size:30px;font-weight:700;display:grid;place-items:center;box-shadow:0 6px 18px rgba(230,57,70,.42);z-index:50;text-decoration:none;transition:transform .12s}
.fab:active{transform:scale(.93)}