/* 志愿汇签到系统 v3.1.1 — mobile-first soft card UI */
:root{
  --bg:#f4f7fb;
  --bg-soft:#eef5ff;
  --surface:#ffffff;
  --surface-soft:rgba(255,255,255,.82);
  --surface-hover:#f7fbff;
  --border:#e6edf7;
  --border-light:#f0f4fa;
  --text:#182033;
  --text-secondary:#667085;
  --text-tertiary:#9aa6b2;
  --blue:#1677ff;
  --blue-hover:#0f68e8;
  --blue-light:#eaf3ff;
  --green:#57d86a;
  --green-hover:#42c957;
  --green-bg:#eafbea;
  --orange:#ff9f2e;
  --orange-bg:#fff4e3;
  --red:#ff4d4f;
  --red-bg:#fff0f0;
  --purple:#7b6cff;
  --radius:18px;
  --radius-sm:12px;
  --radius-xs:9px;
  --shadow:0 10px 30px rgba(28,83,153,.07),0 1px 2px rgba(28,83,153,.05);
  --shadow-hover:0 14px 36px rgba(28,83,153,.11),0 3px 8px rgba(28,83,153,.06);
  --font:-apple-system,BlinkMacSystemFont,'SF Pro Display','Segoe UI',Roboto,'Helvetica Neue',Arial,'PingFang SC','Microsoft YaHei',sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;touch-action:manipulation;-webkit-text-size-adjust:100%}
body{font-family:var(--font);background:radial-gradient(circle at 12% 4%,rgba(97,190,255,.22),transparent 28%),radial-gradient(circle at 88% 12%,rgba(99,229,127,.20),transparent 30%),linear-gradient(180deg,#f8fbff 0%,var(--bg) 100%);color:var(--text);font-size:14px;line-height:1.5;min-height:100vh;touch-action:manipulation}
a{color:var(--blue);text-decoration:none}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit}
input,textarea,select{font-family:inherit;font-size:14px;outline:none}
img{max-width:100%}
::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:rgba(24,32,51,.16);border-radius:10px}

.app-logo{display:inline-block;width:42px;height:42px;border-radius:14px;background:url('../img/logo.svg') center/cover no-repeat;box-shadow:0 10px 26px rgba(22,119,255,.18);flex:0 0 auto}
.app-logo-sm{width:30px;height:30px;border-radius:10px}.app-logo-lg{width:58px;height:58px;border-radius:18px}

/* Layout */
.app{display:flex;min-height:100vh}.sidebar{width:238px;background:rgba(255,255,255,.86);backdrop-filter:blur(24px);border-right:1px solid var(--border);position:fixed;height:100vh;z-index:100;display:flex;flex-direction:column}.sidebar-brand{padding:20px 22px;font-size:16px;font-weight:800;display:flex;align-items:center;gap:11px;border-bottom:1px solid var(--border-light);letter-spacing:-.2px}.sidebar-nav{flex:1;padding:14px 10px;overflow-y:auto}.sidebar-group-label{padding:10px 14px 6px;font-size:11px;color:var(--text-tertiary);letter-spacing:.5px;font-weight:700}.sidebar-link{display:flex;align-items:center;gap:10px;padding:11px 14px;border-radius:14px;font-size:14px;color:var(--text-secondary);font-weight:650;cursor:pointer;transition:all .16s;margin:2px 0;text-decoration:none}.sidebar-link:hover{background:var(--surface-hover);color:var(--text)}.sidebar-link.active{background:linear-gradient(135deg,var(--blue-light),#f4fbff);color:var(--blue);box-shadow:inset 0 0 0 1px rgba(22,119,255,.08)}.sidebar-link svg{width:19px;height:19px;flex-shrink:0;opacity:.72}.sidebar-link.active svg{opacity:1}.sidebar-footer{padding:14px 18px;border-top:1px solid var(--border-light);font-size:12px;color:var(--text-tertiary)}
.main{flex:1;margin-left:238px}.topbar{height:62px;background:rgba(255,255,255,.70);backdrop-filter:blur(22px);border-bottom:1px solid rgba(230,237,247,.82);position:sticky;top:0;z-index:90;display:flex;align-items:center;justify-content:space-between;padding:0 30px}.topbar-title{font-size:18px;font-weight:800;letter-spacing:-.4px}.topbar-actions{display:flex;align-items:center;gap:12px}.content{padding:26px 32px 42px;max-width:1180px}.announcement-root{max-width:1180px;padding:18px 32px 0}.mobile-tabbar{display:none}

/* Cards */
.card{background:var(--surface-soft);border-radius:var(--radius);border:1px solid rgba(230,237,247,.95);box-shadow:var(--shadow);transition:box-shadow .2s,transform .2s;overflow:hidden}.card:hover{box-shadow:var(--shadow-hover)}.card-header{padding:18px 22px;border-bottom:1px solid var(--border-light);display:flex;align-items:center;justify-content:space-between;gap:12px}.card-body{padding:22px}.card-body-p0{padding:0}.glass-card{background:linear-gradient(180deg,rgba(255,255,255,.86),rgba(255,255,255,.72));backdrop-filter:blur(20px)}
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:22px}.stat-card{background:var(--surface-soft);border-radius:var(--radius);padding:20px 22px;border:1px solid rgba(230,237,247,.9);box-shadow:var(--shadow);position:relative;overflow:hidden}.stat-card:after{content:'';position:absolute;right:-22px;top:-24px;width:88px;height:88px;border-radius:999px;background:linear-gradient(135deg,rgba(22,119,255,.12),rgba(87,216,106,.10))}.stat-label{font-size:12px;color:var(--text-tertiary);font-weight:700;margin-bottom:10px}.stat-value{font-size:29px;font-weight:850;color:var(--text);letter-spacing:-.8px;line-height:1}

/* Buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:7px;padding:10px 17px;border-radius:13px;font-size:14px;font-weight:750;transition:all .16s;white-space:nowrap;box-shadow:none}.btn:active{transform:scale(.97)}.btn:disabled{opacity:.48;cursor:not-allowed;transform:none}.btn-blue{background:linear-gradient(135deg,#258cff,var(--blue));color:#fff;box-shadow:0 10px 22px rgba(22,119,255,.18)}.btn-blue:hover{background:linear-gradient(135deg,#3b98ff,var(--blue-hover))}.btn-green{background:linear-gradient(135deg,#6fe777,var(--green));color:#fff;box-shadow:0 10px 22px rgba(87,216,106,.20)}.btn-green:hover{background:linear-gradient(135deg,#5ee06c,var(--green-hover))}.btn-gray{background:#f7faff;color:var(--text);border:1px solid var(--border)}.btn-gray:hover{background:#eef5ff}.btn-red{background:var(--red);color:#fff}.btn-red:hover{opacity:.92}.btn-sm{padding:7px 12px;font-size:12px;border-radius:10px}.btn-lg{padding:13px 22px;font-size:15px;border-radius:14px}.btn-block{width:100%}

/* Forms */
.input,.form-input,.admin-input{width:100%;padding:12px 14px;border:1px solid var(--border);border-radius:13px;font-size:14px;color:var(--text);background:rgba(255,255,255,.92);transition:border-color .15s,box-shadow .15s,background .15s}.input:focus,.form-input:focus,.admin-input:focus{border-color:var(--blue);box-shadow:0 0 0 4px rgba(22,119,255,.10);background:#fff}.input::placeholder,.form-input::placeholder,.admin-input::placeholder{color:var(--text-tertiary)}.label,.form-label{display:block;margin-bottom:7px;font-size:13px;font-weight:700;color:var(--text-secondary)}.field-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}.query-row{display:flex;gap:12px;align-items:flex-end}.input-hero{height:46px;font-size:17px;font-weight:800;letter-spacing:2px;text-transform:uppercase}

/* Tables */
.table{width:100%;border-collapse:collapse;font-size:13px}.table thead th{padding:12px 16px;text-align:left;font-size:11px;font-weight:800;color:var(--text-tertiary);letter-spacing:.5px;border-bottom:1px solid var(--border);background:#f8fbff}.table tbody td{padding:14px 16px;border-bottom:1px solid var(--border-light);color:var(--text)}.table tbody tr:hover td{background:var(--surface-hover)}
.badge{display:inline-flex;align-items:center;gap:6px;padding:4px 10px;border-radius:999px;font-size:12px;font-weight:800}.badge::before{content:'';width:6px;height:6px;border-radius:50%}.badge-green{background:var(--green-bg);color:#248a35}.badge-green::before{background:var(--green)}.badge-red{background:var(--red-bg);color:#c9363b}.badge-red::before{background:var(--red)}.badge-orange{background:var(--orange-bg);color:#c86500}.badge-orange::before{background:var(--orange)}.badge-blue{background:var(--blue-light);color:var(--blue)}.badge-blue::before{background:var(--blue)}.badge-gray{background:#f2f5f9;color:var(--text-tertiary)}.badge-gray::before{background:var(--text-tertiary)}

/* Toast and Modal */
.toast-container{position:fixed;top:20px;right:20px;z-index:9999;display:flex;flex-direction:column;gap:8px}.toast{min-width:280px;max-width:410px;padding:14px 18px;border-radius:16px;background:rgba(24,32,51,.94);color:#fff;font-size:13px;font-weight:750;box-shadow:0 18px 42px rgba(24,32,51,.20);animation:toastIn .3s ease;display:flex;align-items:center;gap:10px}.toast.toast-green{border-left:4px solid var(--green)}.toast.toast-red{border-left:4px solid var(--red)}@keyframes toastIn{from{opacity:0;transform:translateX(20px)}to{opacity:1;transform:translateX(0)}}
.modal-overlay{position:fixed;inset:0;z-index:2000;background:rgba(24,32,51,.28);backdrop-filter:blur(8px);display:flex;align-items:center;justify-content:center;padding:20px;opacity:0;pointer-events:none;transition:opacity .2s}.modal-overlay.show{opacity:1;pointer-events:auto}.modal{background:var(--surface);border-radius:22px;box-shadow:0 26px 80px rgba(24,32,51,.23);max-width:560px;width:100%;overflow:hidden;transform:scale(.95);transition:transform .2s ease}.modal-overlay.show .modal{transform:scale(1)}.modal-head{padding:24px 26px 0;display:flex;align-items:center;justify-content:space-between;gap:16px}.modal-head h3{font-size:18px;font-weight:850}.modal-body{padding:16px 26px 24px;font-size:14px;color:var(--text-secondary);line-height:1.65}.modal-foot{padding:0 26px 24px;display:flex;gap:10px;justify-content:flex-end}.modal-close{width:30px;height:30px;border-radius:50%;display:flex;align-items:center;justify-content:center;color:var(--text-tertiary);cursor:pointer}.modal-close:hover{background:var(--bg);color:var(--text)}

/* Login */
.login-page{display:flex;align-items:center;justify-content:center;min-height:100vh;padding:22px;background:radial-gradient(circle at 18% 12%,rgba(80,198,255,.24),transparent 32%),radial-gradient(circle at 86% 16%,rgba(91,227,106,.22),transparent 30%),linear-gradient(180deg,#f9fcff,var(--bg))}.login-card{background:rgba(255,255,255,.72);backdrop-filter:blur(22px);border-radius:28px;border:1px solid rgba(255,255,255,.80);box-shadow:0 24px 70px rgba(28,83,153,.14);width:100%;max-width:410px;padding:44px 32px}.login-logo{width:62px;height:62px;border-radius:20px;background:url('../img/logo.svg') center/cover no-repeat;margin:0 auto 20px;box-shadow:0 16px 36px rgba(22,119,255,.20);font-size:0;color:transparent}.login-title{text-align:center;font-size:24px;font-weight:850;margin-bottom:6px;letter-spacing:-.6px}.login-subtitle{text-align:center;font-size:14px;color:var(--text-tertiary);margin-bottom:28px}.login-tabs{display:flex;background:rgba(244,247,251,.82);border-radius:14px;padding:4px;margin-bottom:24px}.login-tab{flex:1;text-align:center;padding:10px;font-size:14px;font-weight:800;color:var(--text-tertiary);cursor:pointer;border-radius:11px;border:none;background:none;transition:all .15s}.login-tab.active{background:var(--surface);color:var(--green);box-shadow:0 4px 12px rgba(28,83,153,.08)}
.spinner{width:18px;height:18px;border:2px solid rgba(24,32,51,.10);border-top-color:var(--blue);border-radius:50%;animation:spin .65s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.empty{text-align:center;padding:54px 20px;color:var(--text-tertiary)}.empty h4{font-size:16px;font-weight:800;color:var(--text-secondary);margin:12px 0 5px}.page-fade{animation:pageFade .25s ease}@keyframes pageFade{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}

/* List items */
.acct-item{display:flex;align-items:center;padding:16px 22px;border-bottom:1px solid var(--border-light);transition:background .12s;cursor:pointer;gap:0;max-width:100%;overflow:hidden}.acct-item:hover{background:var(--surface-hover)}.acct-item:last-child{border-bottom:none}.acct-avatar{width:40px;height:40px;border-radius:14px;background:linear-gradient(135deg,#e5f1ff,#dffae3);display:flex;align-items:center;justify-content:center;font-size:15px;font-weight:850;color:var(--blue);flex-shrink:0;margin-right:14px}.acct-info{flex:1;min-width:0;overflow:hidden}.acct-name{font-weight:800;font-size:14px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.acct-meta{font-size:12px;color:var(--text-tertiary);margin-top:3px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:100%}.record-filter{display:flex;gap:8px;overflow-x:auto;margin-bottom:14px;padding-bottom:2px}.filter-chip{padding:7px 13px;border-radius:999px;background:#f7faff;border:1px solid var(--border);font-size:13px;font-weight:800;color:var(--text-secondary);white-space:nowrap}.filter-chip.active{background:var(--blue-light);color:var(--blue);border-color:rgba(22,119,255,.18)}

/* Sign page */
.activity-summary{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin-bottom:16px}.activity-summary .mini{background:#f8fbff;border:1px solid var(--border-light);padding:13px;border-radius:14px}.mini-label{font-size:12px;color:var(--text-tertiary);font-weight:750;margin-bottom:4px}.mini-value{font-size:14px;font-weight:850;color:var(--text)}.auto-sign-card{background:linear-gradient(135deg,#f4fff5,#f7fbff);border:1px solid rgba(87,216,106,.22);border-radius:16px;padding:15px;margin:14px 0}.auto-sign-row{display:flex;align-items:flex-start;gap:10px}.auto-sign-row input[type=checkbox]{width:18px;height:18px;accent-color:var(--green);margin-top:2px}.hint{font-size:12px;color:var(--text-tertiary);margin-top:4px}.map-wrap{width:100%;height:400px;border-radius:0 0 var(--radius) var(--radius);overflow:hidden}.map-wrap iframe{width:100%;height:100%;border:0}
.acct-list-card .acct-item{max-width:100%;min-width:0;overflow:hidden;display:flex;align-items:center;gap:8px}.acct-list-card .acct-info{flex:1 1 0%;min-width:0;overflow:hidden;max-width:calc(100% - 80px)}.acct-list-card .acct-meta{max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}


/* Dropdown */
.dropdown{position:relative;display:inline-block}.dropdown-menu{position:absolute;top:calc(100% + 7px);right:0;min-width:166px;background:var(--surface);border-radius:15px;box-shadow:0 18px 42px rgba(28,83,153,.14);border:1px solid var(--border-light);overflow:hidden;z-index:80;opacity:0;pointer-events:none;transform:translateY(-4px);transition:all .15s}.dropdown.show .dropdown-menu{opacity:1;pointer-events:auto;transform:translateY(0)}.dropdown-item{display:flex;align-items:center;padding:11px 16px;font-size:13px;color:var(--text);cursor:pointer;transition:background .1s;font-weight:700}.dropdown-item:hover{background:var(--bg)}.dropdown-item.red{color:var(--red)}code{background:#f4f7fb;padding:3px 7px;border-radius:6px;font-size:13px;font-family:'SF Mono',Consolas,monospace;color:var(--text-secondary)}

/* Announcements */
.announcement-banner{background:linear-gradient(135deg,rgba(255,255,255,.88),rgba(239,248,255,.84));border:1px solid var(--border-light);box-shadow:var(--shadow);border-radius:18px;padding:15px 17px;margin-bottom:12px;display:flex;gap:12px;align-items:flex-start}.announcement-icon{width:34px;height:34px;border-radius:12px;background:var(--blue-light);color:var(--blue);display:flex;align-items:center;justify-content:center;font-weight:900;flex:0 0 auto}.announcement-title{font-size:14px;font-weight:850;margin-bottom:4px}.announcement-content{font-size:13px;color:var(--text-secondary);line-height:1.65;overflow-wrap:anywhere}.announcement-content p{margin:.45em 0}.announcement-content img{border-radius:14px;margin-top:8px;max-height:260px;object-fit:cover}.rich-toolbar{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:10px}.rich-toolbar button{padding:7px 10px;border-radius:10px;background:#f7faff;border:1px solid var(--border);font-size:12px;font-weight:800;color:var(--text-secondary)}.rich-toolbar button:hover{background:var(--blue-light);color:var(--blue)}.rich-editor{min-height:180px;border:1px solid var(--border);border-radius:15px;background:#fff;padding:14px;line-height:1.7;overflow:auto}.rich-editor:focus{border-color:var(--blue);box-shadow:0 0 0 4px rgba(22,119,255,.10)}.rich-editor:empty:before{content:attr(data-placeholder);color:var(--text-tertiary)}.ann-content-preview{max-height:90px;overflow:hidden;color:var(--text-tertiary);font-size:13px;margin-top:5px}.ann-img-thumb{width:64px;height:64px;object-fit:cover;border-radius:12px;border:1px solid var(--border-light)}

@media(max-width:768px){
  body{background:radial-gradient(circle at 20% 0,rgba(80,198,255,.24),transparent 34%),radial-gradient(circle at 92% 8%,rgba(91,227,106,.20),transparent 30%),linear-gradient(180deg,#f9fcff 0%,#f3f7fc 100%)}
  .sidebar{display:none}.main{margin-left:0;min-height:100vh}.topbar{height:62px;padding:0 18px;background:rgba(255,255,255,.58)}.topbar-title{font-size:18px}.content{padding:16px 14px 100px}.announcement-root{padding:14px 14px 0}.stat-grid{grid-template-columns:repeat(2,1fr);gap:12px}.stat-card{padding:18px 16px}.stat-value{font-size:28px}.card{border-radius:20px}.card-header{padding:16px 18px}.card-body{padding:18px}.field-grid,.activity-summary{grid-template-columns:1fr}.query-row{display:block}.query-row .btn{width:100%;margin-top:10px}.table{min-width:560px}.card-body-p0{overflow-x:auto}.toast-container{left:14px;right:14px;top:14px}.toast{min-width:0;max-width:none;width:100%}.login-card{border-radius:30px;max-width:390px;padding:42px 28px}.mobile-tabbar{position:fixed;left:12px;right:12px;bottom:12px;height:66px;background:rgba(255,255,255,.86);backdrop-filter:blur(22px);border:1px solid rgba(230,237,247,.94);box-shadow:0 20px 60px rgba(28,83,153,.16);border-radius:22px;z-index:120;display:grid;grid-template-columns:repeat(5,1fr);padding:6px}.mobile-nav-link{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;color:var(--text-tertiary);font-size:11px;font-weight:800;border-radius:16px}.mobile-nav-link svg{width:20px;height:20px}.mobile-nav-link.active{background:var(--blue-light);color:var(--blue)}.map-wrap{height:320px}.dropdown-menu{right:0}.admin-content{padding-bottom:96px!important}
}
@media(max-width:480px){.stat-grid{grid-template-columns:repeat(2,1fr)}.stat-label{font-size:11px}.stat-value{font-size:25px}.acct-item{padding:15px 16px}.btn-lg{width:100%}.modal{border-radius:24px}.modal-foot{flex-direction:column-reverse}.modal-foot .btn,.modal-foot .admin-btn{width:100%}}

/* v3.1.1 fixes: guest home, account dropdown, announcement images, batch sign */
.guest-hero{margin-bottom:22px;overflow:hidden}.guest-hero .card-body{position:relative;padding:28px}.guest-hero h2{font-size:24px;font-weight:900;letter-spacing:-.6px;margin:16px 0 6px}.guest-hero p{max-width:640px;color:var(--text-secondary);font-size:14px}.guest-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:18px}.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:22px}.feature-grid h3{font-size:16px;font-weight:900;margin-bottom:8px}.feature-grid p{font-size:13px;color:var(--text-secondary);min-height:42px;margin-bottom:14px}.auth-modal-card{max-width:430px}.auth-subtitle{font-size:13px;color:var(--text-tertiary);margin-top:4px}.auth-tabs{margin-bottom:18px}.select-all-row{display:inline-flex;align-items:center;gap:7px;font-size:13px;font-weight:800;color:var(--text-secondary);white-space:nowrap}.select-all-row input{width:16px;height:16px;accent-color:var(--blue)}.card.acct-list-card{overflow:visible}.acct-list-card .card-body-p0{overflow:visible}.acct-list-card .acct-list-wrap{overflow-x:hidden;overflow-y:auto;max-width:100%}.acct-list-card .acct-item{position:relative;display:flex;align-items:center;max-width:100%;min-width:0;overflow:visible}.acct-list-card .acct-info{flex:1 1 0%;min-width:0;overflow:hidden}.acct-list-card .acct-name,.acct-list-card .acct-meta{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:100%}.acct-list-card .dropdown{position:relative;z-index:50;overflow:visible}.acct-list-card .dropdown.show{z-index:3000;position:static}.acct-list-card .dropdown-menu{z-index:9999;right:0;position:absolute;box-shadow:0 8px 24px rgba(0,0,0,0.15)}.acct-list-card .dropdown-item{position:relative;z-index:1000}.announcement-content img{display:block;width:auto;max-width:100%;height:auto;border-radius:14px;margin:10px 0;object-fit:contain}.announcement-content a{word-break:break-all}.modal .announcement-content img{max-height:52vh}.topbar-actions .btn{flex-shrink:0}
@media(max-width:768px){.feature-grid{grid-template-columns:1fr}.guest-hero .card-body{padding:24px 20px}.guest-hero h2{font-size:22px}.topbar-actions{gap:6px}.topbar-actions .btn-sm{padding:6px 10px}.select-all-row{font-size:12px}.acct-list-card .dropdown-menu{right:0;min-width:142px}.modal .announcement-content img{max-height:46vh}}