:root{--bg:#f5f7fb;--card:#fff;--ink:#18283e;--muted:#748197;--line:#e8edf4;--blue:#3565ec;--blue-soft:#edf2ff;--green:#179574;--nav:#162337;--red:#c84d58;--radius:16px;font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;color:var(--ink);font-size:14px}*{box-sizing:border-box}body{margin:0;background:var(--bg);line-height:1.6}a{color:var(--blue);text-decoration:none}button,input,select,textarea{font:inherit}button,a,input,textarea,select{-webkit-tap-highlight-color:transparent}button{cursor:pointer}button:disabled{cursor:wait;opacity:.6}a:hover{text-decoration:none}button:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{outline:3px solid #b7c8ff;outline-offset:3px}.layout{display:flex;min-height:100vh}.sidebar{position:fixed;width:232px;height:100vh;padding:30px 20px 20px;background:var(--nav);color:#fff;display:flex;flex-direction:column;z-index:20}.logo{display:flex;align-items:center;gap:11px;color:#fff;font-size:17px;font-weight:650;letter-spacing:.5px}.logo-mark{display:grid;place-items:center;background:#4777ff;border-radius:12px;width:38px;height:38px;font-size:19px;font-weight:750}.logo small{display:block;color:#8fa0ba;font-size:11px;font-weight:400;letter-spacing:2px;margin-top:1px}.nav-section{font-size:10px;letter-spacing:2px;color:#8393aa;margin:32px 14px 9px}.nav-link{display:flex;align-items:center;gap:12px;color:#b5c0d0;padding:12px 14px;border-radius:10px;margin:3px 0;font-size:13px}.nav-link:hover{background:#24344d;color:white}.nav-link.active{color:white;background:#3565ec;box-shadow:0 5px 14px #0e1d3940}.nav-icon{font-size:17px;width:21px;text-align:center}.sidebar-bottom{margin-top:auto;padding:18px 12px 0;border-top:1px solid #ffffff13;color:#8c9bb2;font-size:11px}.connection-dot{display:inline-block;width:6px;height:6px;border-radius:100%;background:#8ea0bf;margin-right:5px}.connection-dot.on{background:#4bd2a6}.main{margin-left:232px;width:calc(100% - 232px)}.topbar{height:74px;border-bottom:1px solid var(--line);background:#ffffffd9;display:flex;align-items:center;justify-content:space-between;padding:0 40px}.breadcrumb{color:#8a95a8;font-size:12px}.breadcrumb span{color:#46556c;margin-left:14px}.top-actions{display:flex;align-items:center;gap:14px}.avatar{width:30px;height:30px;background:#e9efff;color:var(--blue);border-radius:50%;display:grid;place-items:center;font-size:11px;font-weight:700}.content{max-width:1500px;padding:30px 40px 60px;margin:auto}.mode-banner{border:1px solid #dae5ff;background:#edf3ff;color:#4d638b;border-radius:10px;padding:11px 16px;display:flex;align-items:center;gap:12px;margin-bottom:28px;font-size:12px}.mode-banner strong{color:#2f5bd5;white-space:nowrap}.mode-banner a{margin-left:auto;white-space:nowrap}.page-heading{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:24px;gap:16px}.eyebrow{font-size:10px;letter-spacing:2px;color:#8593aa;text-transform:uppercase;margin-bottom:8px}.page-heading h1{font-size:26px;margin:0;letter-spacing:-.5px;line-height:1.3}.page-heading p{margin:10px 0 0;font-size:12px;color:var(--muted)}.actions{display:flex;align-items:center;gap:10px;flex-wrap:wrap}.btn{display:inline-flex;gap:7px;justify-content:center;align-items:center;padding:9px 15px;min-height:38px;border:1px solid #dae2ed;background:white;color:#455772;border-radius:8px;font-size:12px;line-height:1.5;white-space:nowrap}.btn:hover{background:#f7f9fd}.btn.primary{background:var(--blue);color:white;border-color:var(--blue);box-shadow:0 3px 7px #3565ec15}.btn.primary:hover{background:#2a57d2}.btn.soft{background:var(--blue-soft);color:var(--blue);border-color:#e0e8fe}.btn.danger{color:#b04754}.btn.small{min-height:30px;padding:5px 10px;font-size:11px}.btn.block{width:100%}.inline-form{display:inline-flex;gap:8px}.grid{display:grid;gap:20px}.grid.two{grid-template-columns:1.4fr 1fr}.grid.equal{grid-template-columns:1fr 1fr}.metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-bottom:24px}.metric{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:20px 22px;position:relative}.metric-label{font-size:12px;color:#6c7c93}.metric-value{font-size:32px;line-height:1.1;font-weight:650;letter-spacing:-1px;margin-top:14px}.metric-foot{font-size:10px;color:#97a2b2;margin-top:12px}.metric-icon{position:absolute;right:20px;top:18px;color:var(--blue);background:#f0f4ff;width:30px;height:30px;border-radius:9px;display:grid;place-items:center}.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);margin-bottom:22px;overflow:hidden}.card-head{padding:21px 24px;border-bottom:1px solid var(--line);display:flex;justify-content:space-between;align-items:center;gap:12px}.card-head h2{font-size:14px;margin:0;font-weight:650}.card-head p{font-size:11px;color:var(--muted);margin:5px 0 0}.card-body{padding:24px}.card-body.compact{padding:18px 24px}.card-foot{padding:14px 24px;border-top:1px solid var(--line);color:var(--muted);font-size:11px}.flow{display:flex;justify-content:space-around;align-items:center;padding:28px 12px}.flow-step{text-align:center;flex:1}.flow-symbol{width:38px;height:38px;background:#edf2ff;color:var(--blue);display:grid;place-items:center;border-radius:12px;margin:0 auto 9px;font-size:16px}.flow-step strong{font-size:12px;font-weight:550;display:block}.flow-step small{display:block;color:#929eaf;font-size:10px;margin-top:5px}.flow-arrow{color:#bcc8d9;font-size:17px}.tag{display:inline-flex;align-items:center;gap:5px;background:#eff3f8;color:#6e7f95;border:1px solid transparent;border-radius:5px;padding:3px 8px;font-size:10px;white-space:nowrap}.tag.blue{background:#edf2ff;color:#426ad1}.tag.green,.tag.success,.tag.joined,.tag.already_delivered{background:#ecf8f3;color:#20886b}.tag.yellow,.tag.missing_code,.tag.expired,.tag.uncertain,.tag.other_app_sending{background:#fff5df;color:#ac8030}.tag.red,.tag.failed{background:#fff0f0;color:#bb5261}.tag.preview{background:#eaf0ff;color:#5672ac}.tag.live{background:#e8f7f0;color:#21846a}.table-wrap{overflow:auto}table{border-collapse:collapse;width:100%;font-size:12px}th{text-align:left;color:#8a96a7;font-size:10px;font-weight:500;letter-spacing:.3px;background:#fafbfd;padding:12px 20px;border-bottom:1px solid var(--line);white-space:nowrap}td{padding:16px 20px;border-bottom:1px solid #f0f3f8;vertical-align:middle}tr:last-child td{border-bottom:0}tbody tr:hover{background:#fcfdff}.cell-main{font-weight:550;color:#263953}.cell-sub{font-size:10px;color:#93a0b1;margin-top:5px}.cell-text{max-width:240px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.muted{color:var(--muted)}.small-text{font-size:11px}.mono{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:11px}.nowrap{white-space:nowrap}.empty{padding:50px 24px;text-align:center;color:#8a98ae}.empty strong{display:block;font-size:14px;color:#52647e;margin-bottom:8px}.empty p{font-size:12px;margin:7px 0 20px}.check-list{display:grid;gap:0}.check-item{display:flex;align-items:flex-start;gap:11px;padding:13px 0;border-bottom:1px solid #f0f3f8}.check-item:last-child{border-bottom:0}.check-circle{width:20px;height:20px;flex-shrink:0;display:grid;place-items:center;border-radius:50%;background:#edf2f8;color:#99a6b8;font-size:10px}.check-circle.ok{background:#e8f7ef;color:#1b9a71}.check-item strong{display:block;font-size:11px;font-weight:550}.check-item p{font-size:10px;margin:4px 0 0;color:#8b98ac;line-height:1.6}.check-item .tag{margin-left:auto}.progress{height:6px;background:#eef2f8;border-radius:4px;overflow:hidden}.progress-fill{height:100%;background:var(--blue);border-radius:4px}.group-preview{background:#f6f9ff;border:1px solid #e4ecff;border-radius:12px;padding:20px}.group-name{font-size:16px;font-weight:600;margin-bottom:8px}.group-capacity{display:flex;justify-content:space-between;color:#7d8aa0;font-size:11px;margin:14px 0 9px}.group-number{color:var(--blue);font-size:23px;font-weight:600}.note{padding:14px 16px;border-radius:9px;background:#f5f8fd;color:#7d8da6;font-size:11px;line-height:1.8;margin:16px 0}.note.warning{background:#fff7e7;color:#a37b36}.note.success{background:#eff9f4;color:#3f8d73}.audit-item{display:flex;gap:12px;padding:11px 0;border-bottom:1px solid #f1f4f8}.audit-item:last-child{border-bottom:0}.audit-dot{margin-top:6px;width:6px;height:6px;border-radius:50%;background:#88a5ef;flex-shrink:0}.audit-dot.warning{background:#d8ae5c}.audit-dot.error{background:#d47b7b}.audit-text{font-size:11px;color:#687b96}.audit-time{font-size:10px;color:#a0aaba;margin-top:4px}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}.field.full{grid-column:1/-1}.field label{display:block;font-size:12px;font-weight:550;margin-bottom:8px}.field input:not([type=checkbox]),.field select,.field textarea{width:100%;border:1px solid #dfe6ef;border-radius:8px;padding:10px 12px;background:#fff;color:#344962;line-height:1.6;font-size:12px;min-height:40px}.field textarea{resize:vertical;min-height:135px}.field input[readonly]{background:#f8fafd;color:#8593a6}.hint{font-size:10px;color:#8a98ac;margin-top:7px;line-height:1.8}.field input::placeholder,.field textarea::placeholder{color:#b2bccb}.check-label{display:flex!important;align-items:center;gap:9px;font-weight:400!important;margin:0!important;font-size:11px!important;cursor:pointer}.check-label input{accent-color:var(--blue);width:15px;height:15px}.welcome-preview{background:#f0f3f6;border-radius:12px;min-height:290px;padding:20px;display:flex;gap:11px;align-items:flex-start}.chat-avatar{width:34px;height:34px;border-radius:8px;background:#3765e7;color:white;display:grid;place-items:center;font-size:12px;flex-shrink:0}.chat-bubble{background:#fff;white-space:pre-wrap;overflow-wrap:anywhere;border-radius:2px 12px 12px 12px;padding:14px 16px;font-size:12px;max-width:100%;line-height:1.9;box-shadow:0 2px 4px #34496704}.chat-caption{font-size:10px;color:#99a5b8;margin:10px 0}.qr-box{text-align:center;padding:22px}.qr-box img{width:180px;height:180px;object-fit:contain;max-width:100%;border:1px solid var(--line);border-radius:10px;padding:12px;background:white}.qr-box p{font-size:11px;color:var(--muted);word-break:break-all}.split-form{display:grid;grid-template-columns:minmax(0,1.5fr) minmax(280px,1fr);gap:22px;align-items:start}.flash{border:1px solid #d3e6df;border-radius:9px;padding:12px 15px;background:#eef9f3;color:#43866a;font-size:12px;margin-bottom:18px}.flash.error{border-color:#f1d9db;background:#fff2f3;color:#bb5261}.history-stats{display:flex;gap:30px;flex-wrap:wrap}.history-stats strong{font-size:25px;display:block;font-weight:600}.history-stats small{color:#95a0b1;font-size:10px}.group-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.group-card{border:1px solid var(--line);border-radius:12px;padding:20px}.group-card.current{border-color:#b7c9fa;background:#f8faff}.group-card h3{font-size:13px;margin:12px 0}.caption-label{color:#8e9cb0;font-size:10px;letter-spacing:1px}.detail-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}.detail-grid dt{font-size:10px;color:#8d9bb0;margin-bottom:5px}.detail-grid dd{font-size:12px;margin:0;overflow-wrap:anywhere}.timeline{padding-left:12px}.timeline-item{border-left:1px solid #e1e8f4;padding:0 0 22px 23px;position:relative}.timeline-item:before{content:'';position:absolute;left:-5px;top:4px;width:9px;height:9px;border-radius:50%;background:#8fa9ef;box-shadow:0 0 0 4px white}.timeline-item strong{font-size:12px}.timeline-item p{font-size:11px;color:#8b99ad;margin:6px 0}.timeline-item:last-child{padding-bottom:0;border-left-color:transparent}.public-page{min-height:100vh;display:grid;place-items:center;padding:28px 16px;background:#f2f5fc}.public-card{width:min(100%,440px);background:white;border-radius:24px;border:1px solid var(--line);padding:35px 30px;box-shadow:0 16px 60px #15263e08;text-align:center}.public-card h1{font-size:23px;margin:19px 0 10px}.public-card p{font-size:12px;color:#8b98ab}.public-card .logo-mark{margin:auto;width:48px;height:48px;font-size:23px}.public-card .note{text-align:left}.public-card .btn{margin-top:10px}.public-flashes .flash{text-align:left}.login-card{max-width:380px}.login-card .field{text-align:left;margin:18px 0}.footer-note{font-size:10px;color:#9ba6b8;text-align:center;margin-top:30px}.mobile-toggle{display:none}.secret-output{white-space:pre-wrap;word-break:break-all;background:#f4f7fc;padding:14px;border-radius:9px;font-size:11px;text-align:left}.visually-hidden{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0)}
/* 窄屏下允许网格内容收缩，表格仅在卡片内部横向滚动。 */
.grid>*,.split-form>*,.metrics>*,.form-grid>*,.group-grid>*{min-width:0}.main,.card,.table-wrap{min-width:0}.card{max-width:100%}.flow-step{min-width:0}
@media(min-width:1600px){.content{padding-top:38px}.metrics{gap:24px}}@media(max-width:1100px){.content{padding:26px}.topbar{padding:0 26px}.metrics{grid-template-columns:repeat(2,1fr)}.grid.two,.split-form{grid-template-columns:1fr}.group-grid{grid-template-columns:repeat(2,1fr)}}@media(max-width:760px){.sidebar{width:66px;padding:22px 9px}.sidebar .logo{justify-content:center}.logo-name,.nav-link .nav-text,.nav-section,.sidebar-bottom{display:none}.logo-mark{width:36px;height:36px}.nav-link{padding:12px 10px;justify-content:center;margin:7px 0}.nav-link:first-of-type{margin-top:30px}.nav-icon{font-size:19px}.main{margin-left:66px;width:calc(100% - 66px)}.topbar{height:60px;padding:0 18px}.breadcrumb{font-size:10px}.top-actions .small-text{display:none}.content{padding:20px 16px 40px}.mode-banner{font-size:10px;padding:10px;align-items:flex-start;flex-wrap:wrap;gap:6px;margin-bottom:22px}.mode-banner a{margin-left:0}.page-heading{flex-direction:column;gap:15px}.page-heading h1{font-size:23px}.page-heading p{font-size:11px}.metrics{gap:10px}.metric{padding:17px 14px}.metric-value{font-size:28px}.metric-icon{right:12px;top:14px;width:25px;height:25px}.metric-label{font-size:10px}.metric-foot{font-size:9px}.card-head{padding:17px 16px;flex-wrap:wrap}.card-body{padding:18px 16px}.grid.two,.grid.equal,.form-grid,.group-grid,.detail-grid{grid-template-columns:1fr}.field.full{grid-column:auto}td,th{padding:13px 14px}.flow{padding:22px 2px}.flow-step strong{font-size:10px}.flow-step small{display:none}.flow-symbol{width:30px;height:30px;font-size:13px}.flow-arrow{font-size:12px}.group-name{font-size:14px}.welcome-preview{padding:14px}.chat-bubble{font-size:11px;padding:11px}.public-card{padding:28px 22px}}

/* 学校承接方案切换。 */
.plan-list{display:flex;gap:12px;flex-wrap:wrap;margin:0 0 24px}.plan-option{border:1px solid var(--line);padding:14px 20px;border-radius:12px;background:white;color:var(--ink);min-width:180px}.plan-option strong{display:block;font-size:13px}.plan-option span{display:block;color:var(--muted);font-size:10px;margin-top:5px}.plan-option.selected{border-color:#9db6ff;background:#f0f4ff}.sidebar{overflow-y:auto}.nav-section{margin-top:23px}.nav-link{padding-top:10px;padding-bottom:10px}.sidebar-bottom{padding-top:14px}@media(max-width:760px){.plan-option{min-width:0;flex:1}.plan-option strong{font-size:11px}.plan-option span{font-size:9px}}