/* ============================================================
   Common — 全站通用样式
   设计：浅色为主 / 毛玻璃 / 单色强调 / 无渐变
   ============================================================ */

:root{
    --bg:              #f5f6f8;
    --card-bg:         rgba(255, 255, 255, 0.72);
    --card-solid:      #ffffff;
    --card-hover:      rgba(255, 255, 255, 0.9);

    --primary:         #18181b;
    --primary-hover:   #27272a;
    --primary-fg:      #ffffff;

    --accent:          #2563eb;
    --accent-soft:     rgba(37, 99, 235, 0.08);

    --success:         #15803d;
    --success-soft:    #dcfce7;
    --danger:          #b91c1c;
    --danger-soft:     #fee2e2;
    --warning:         #b45309;
    --warning-soft:    #fef3c7;
    --info:            #1d4ed8;
    --info-soft:       #dbeafe;

    --text:            #0f172a;
    --text-light:      #64748b;
    --text-mute:       #94a3b8;

    --border:          rgba(15, 23, 42, 0.08);
    --border-strong:   rgba(15, 23, 42, 0.14);

    --radius-sm:       6px;
    --radius:          10px;
    --radius-lg:       14px;

    --shadow-sm:       0 1px 2px rgba(15, 23, 42, 0.04);
    --shadow:          0 2px 8px rgba(15, 23, 42, 0.06);
    --shadow-lg:       0 12px 32px rgba(15, 23, 42, 0.10);

    --ease:            cubic-bezier(0.4, 0, 0.2, 1);
    --dur:             0.18s;

    --glass-blur:      blur(18px) saturate(160%);
}

@media (prefers-color-scheme: dark){
    :root{
        --bg:              #0e0f12;
        --card-bg:         rgba(255, 255, 255, 0.035);
        --card-solid:      #16181d;
        --card-hover:      rgba(255, 255, 255, 0.06);

        --primary:         #f4f4f5;
        --primary-hover:   #ffffff;
        --primary-fg:      #0e0f12;

        --accent:          #60a5fa;
        --accent-soft:     rgba(96, 165, 250, 0.12);

        --success:         #4ade80;
        --success-soft:    rgba(74, 222, 128, 0.12);
        --danger:          #f87171;
        --danger-soft:     rgba(248, 113, 113, 0.12);
        --warning:         #fbbf24;
        --warning-soft:    rgba(251, 191, 36, 0.12);
        --info:            #60a5fa;
        --info-soft:       rgba(96, 165, 250, 0.12);

        --text:            #f1f5f9;
        --text-light:      #94a3b8;
        --text-mute:       #64748b;

        --border:          rgba(255, 255, 255, 0.07);
        --border-strong:   rgba(255, 255, 255, 0.14);

        --shadow-sm:       0 1px 2px rgba(0, 0, 0, 0.35);
        --shadow:          0 2px 8px rgba(0, 0, 0, 0.4);
        --shadow-lg:       0 12px 32px rgba(0, 0, 0, 0.5);
    }
}

*{box-sizing:border-box;margin:0;padding:0}
html,body{height:100%}
html{-webkit-text-size-adjust:100%}

body{
    font-family:-apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
    font-size:14px;
    line-height:1.65;
    color:var(--text);
    background:var(--bg);
    -webkit-font-smoothing:antialiased;
    -moz-osx-font-smoothing:grayscale;
    text-rendering:optimizeLegibility;
    font-feature-settings:"tnum","cv11";
    transition:background var(--dur) var(--ease), color var(--dur) var(--ease);
}

a{color:inherit;text-decoration:none;transition:color var(--dur) var(--ease)}
img{max-width:100%;display:block}
.container{max-width:1120px;margin:0 auto;padding:0 24px}

::selection{background:var(--accent-soft);color:var(--text)}

.site-header{
    background:var(--card-bg);
    backdrop-filter:var(--glass-blur);
    -webkit-backdrop-filter:var(--glass-blur);
    border-bottom:1px solid var(--border);
    position:sticky;top:0;z-index:100;
}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;height:64px}
.logo{font-size:16px;font-weight:600;color:var(--text);letter-spacing:-0.01em}
.logo:hover{color:var(--accent)}
.nav{display:flex;align-items:center;gap:8px}
.nav-link{
    color:var(--text-light);
    padding:8px 12px;
    border-radius:var(--radius-sm);
    font-size:13.5px;
    transition:all var(--dur) var(--ease);
}
.nav-link:hover{color:var(--text);background:var(--accent-soft)}
.nav-user{color:var(--text-light);font-size:13px;padding:0 8px}

.btn-primary{
    background:var(--primary);
    color:var(--primary-fg)!important;
    padding:8px 16px;
    border-radius:var(--radius-sm);
    font-weight:500;
}
.btn-primary:hover{background:var(--primary-hover);color:var(--primary-fg)}

main{padding:28px 20px}

.card{
    background:var(--card-bg);
    backdrop-filter:var(--glass-blur);
    -webkit-backdrop-filter:var(--glass-blur);
    border:1px solid var(--border);
    border-radius:var(--radius);
    box-shadow:var(--shadow-sm);
    padding:24px;
    margin-bottom:20px;
    transition:border-color var(--dur) var(--ease), background var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}
.card:hover{border-color:var(--border-strong);box-shadow:var(--shadow)}
.card-title{font-size:15px;font-weight:600;margin-bottom:12px;color:var(--text);letter-spacing:-0.01em}
.card-desc{color:var(--text-light);font-size:13px;margin-bottom:16px}

.btn{
    display:inline-flex;align-items:center;justify-content:center;gap:6px;
    padding:9px 18px;
    border:1px solid var(--primary);
    border-radius:var(--radius-sm);
    background:var(--primary);
    color:var(--primary-fg);
    font-size:13.5px;font-weight:500;font-family:inherit;
    cursor:pointer;line-height:1.4;
    transition:background var(--dur) var(--ease), border-color var(--dur) var(--ease), color var(--dur) var(--ease), transform 0.08s var(--ease);
    white-space:nowrap;user-select:none;
}
.btn:hover{background:var(--primary-hover);border-color:var(--primary-hover)}
.btn:active{transform:scale(0.98)}
.btn:disabled{opacity:0.45;cursor:not-allowed;transform:none}
.btn:focus-visible{outline:2px solid var(--accent);outline-offset:2px}

.btn-sm{padding:6px 12px;font-size:12.5px;border-radius:6px}

.btn-danger{background:var(--danger);border-color:var(--danger);color:#fff}
.btn-danger:hover{background:var(--danger);border-color:var(--danger);filter:brightness(1.08)}

.btn-ghost{background:transparent;border-color:var(--border-strong);color:var(--text)}
.btn-ghost:hover{background:var(--accent-soft);border-color:var(--accent);color:var(--accent)}

input[type=text],input[type=password],input[type=email],input[type=number],select,textarea{
    width:100%;
    padding:9px 12px;
    border:1px solid var(--border-strong);
    border-radius:var(--radius-sm);
    font-size:13.5px;
    font-family:inherit;
    color:var(--text);
    background:var(--card-solid);
    transition:border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease), background var(--dur) var(--ease);
    line-height:1.5;
}
input:focus,select:focus,textarea:focus{
    outline:none;
    border-color:var(--accent);
    box-shadow:0 0 0 3px var(--accent-soft);
}
input::placeholder,textarea::placeholder{color:var(--text-mute)}
textarea{resize:vertical;min-height:80px}

label{display:block;font-size:13px;font-weight:500;color:var(--text);margin-bottom:6px}
.form-group{margin-bottom:14px}

.alert{padding:11px 14px;border-radius:var(--radius-sm);margin-bottom:14px;font-size:13px;line-height:1.55;border:1px solid transparent}
.alert-info{background:var(--info-soft);color:var(--info);border-color:rgba(37, 99, 235, 0.15)}
.alert-error{background:var(--danger-soft);color:var(--danger);border-color:rgba(185, 28, 28, 0.15)}
.alert-success{background:var(--success-soft);color:var(--success);border-color:rgba(21, 128, 61, 0.15)}
.alert-warning{background:var(--warning-soft);color:var(--warning);border-color:rgba(180, 83, 9, 0.15)}

.muted{color:var(--text-light)}
.hidden{display:none!important}
.text-center{text-align:center}
.text-success{color:var(--success)}
.text-danger{color:var(--danger)}

.site-footer{
    text-align:center;color:var(--text-light);
    padding:28px 0;font-size:12.5px;margin-top:40px;
    border-top:1px solid var(--border);
}

.table-wrap{
    overflow-x:auto;
    background:var(--card-bg);
    backdrop-filter:var(--glass-blur);
    -webkit-backdrop-filter:var(--glass-blur);
    border:1px solid var(--border);
    border-radius:var(--radius);
    box-shadow:var(--shadow-sm);
    margin-bottom:16px;
}
.table{width:100%;border-collapse:collapse;background:transparent}
.table th,.table td{
    padding:12px 16px;text-align:left;font-size:13px;
    border-bottom:1px solid var(--border);vertical-align:middle;
}
.table th{
    background:transparent;color:var(--text-light);
    font-weight:500;font-size:12.5px;letter-spacing:0.01em;
}
.table tbody tr{transition:background var(--dur) var(--ease)}
.table tbody tr:hover{background:var(--card-hover)}
.table tbody tr:last-child td{border-bottom:none}

.badge{
    display:inline-flex;align-items:center;
    padding:2px 9px;border-radius:999px;
    font-size:11.5px;font-weight:500;line-height:1.6;white-space:nowrap;
}
.badge-success{background:var(--success-soft);color:var(--success)}
.badge-danger{background:var(--danger-soft);color:var(--danger)}
.badge-info{background:var(--info-soft);color:var(--info)}
.badge-warning{background:var(--warning-soft);color:var(--warning)}

/* ---------- 模态框 ---------- */
.modal-mask{
    position:fixed;inset:0;
    background:rgba(15, 23, 42, 0.42);
    backdrop-filter:blur(4px);
    -webkit-backdrop-filter:blur(4px);
    display:flex;align-items:center;justify-content:center;
    z-index:1000;padding:20px;
    animation:maskIn 0.18s var(--ease);
}
@keyframes maskIn{from{opacity:0}to{opacity:1}}

.modal{
    background:var(--card-solid);
    border:1px solid var(--border);
    border-radius:var(--radius-lg);
    padding:24px;
    max-width:520px;width:100%;
    max-height:85vh;overflow-y:auto;
    box-shadow:var(--shadow-lg);
    animation:modalIn 0.22s var(--ease);
}
@keyframes modalIn{
    from{opacity:0;transform:translateY(6px) scale(0.985)}
    to{opacity:1;transform:translateY(0) scale(1)}
}
.modal h3{font-size:15.5px;font-weight:600;margin-bottom:16px;letter-spacing:-0.01em}
.modal .modal-actions{display:flex;justify-content:flex-end;gap:8px;margin-top:20px}

/* ---------- 操作提示弹窗 ---------- */
.alert-modal-mask{
    position:fixed;inset:0;
    background:rgba(15, 23, 42, 0.32);
    backdrop-filter:blur(4px);
    -webkit-backdrop-filter:blur(4px);
    display:flex;align-items:center;justify-content:center;
    z-index:9999;padding:20px;
    opacity:0;
    transition:opacity 0.2s var(--ease);
    pointer-events:none;
}
.alert-modal-mask.in{opacity:1;pointer-events:auto}

.alert-modal{
    background:var(--card-solid);
    border:1px solid var(--border);
    border-radius:var(--radius-lg);
    box-shadow:var(--shadow-lg);
    padding:26px 28px 20px;
    max-width:380px;width:100%;
    text-align:center;
    display:flex;flex-direction:column;align-items:center;gap:12px;
    transform:translateY(6px) scale(0.96);
    opacity:0;
    transition:transform 0.24s var(--ease), opacity 0.24s var(--ease);
}
.alert-modal-mask.in .alert-modal{
    transform:translateY(0) scale(1);
    opacity:1;
}

.alert-modal-icon{
    width:48px;height:48px;
    border-radius:50%;
    display:flex;align-items:center;justify-content:center;
    flex-shrink:0;
}
.alert-modal-icon svg{width:24px;height:24px}

.alert-modal-content{
    font-size:14px;line-height:1.6;color:var(--text);
    word-break:break-word;max-width:100%;
}

.alert-modal-btn{
    margin-top:6px;
    padding:8px 26px;
    border:1px solid var(--primary);
    border-radius:var(--radius-sm);
    background:var(--primary);
    color:var(--primary-fg);
    font-size:13px;font-weight:500;font-family:inherit;
    cursor:pointer;
    transition:background var(--dur) var(--ease), border-color var(--dur) var(--ease), transform 0.08s var(--ease);
}
.alert-modal-btn:hover{background:var(--primary-hover);border-color:var(--primary-hover)}
.alert-modal-btn:active{transform:scale(0.97)}

.alert-modal-info .alert-modal-icon{background:var(--info-soft);color:var(--info)}
.alert-modal-success .alert-modal-icon{background:var(--success-soft);color:var(--success)}
.alert-modal-error .alert-modal-icon{background:var(--danger-soft);color:var(--danger)}
.alert-modal-warning .alert-modal-icon{background:var(--warning-soft);color:var(--warning)}

/* ---------- 站点公告 ---------- */
.site-notice{
    background:var(--card-bg);
    backdrop-filter:var(--glass-blur);
    -webkit-backdrop-filter:var(--glass-blur);
    border:1px solid var(--border);
    border-radius:var(--radius);
    box-shadow:var(--shadow-sm);
    overflow:hidden;margin-bottom:20px;
}
.site-notice-header{
    display:flex;align-items:center;gap:10px;
    padding:12px 18px;
    border-bottom:1px solid var(--border);
    font-size:13.5px;font-weight:500;color:var(--text);
}
.site-notice-header .notice-icon{font-size:15px;line-height:1}
.site-notice-header .notice-count{
    font-size:11.5px;font-weight:400;color:var(--text-light);
    background:var(--accent-soft);
    padding:1px 8px;border-radius:999px;margin-left:auto;
}
.site-notice-header .notice-toggle{
    margin-left:6px;
    background:transparent;
    border:1px solid var(--border-strong);
    color:var(--text-light);
    width:24px;height:24px;
    border-radius:6px;cursor:pointer;font-size:11px;line-height:1;
    display:inline-flex;align-items:center;justify-content:center;
    transition:all var(--dur) var(--ease);
}
.site-notice-header .notice-toggle:hover{color:var(--text);border-color:var(--accent);background:var(--accent-soft)}
.site-notice.notice-collapsed .site-notice-body{display:none!important}

.site-notice-body{padding:4px 18px 14px;max-height:280px;overflow-y:auto}
.site-notice-item{
    display:flex;gap:12px;align-items:flex-start;
    padding:14px 0;border-bottom:1px solid var(--border);
    animation:fadeIn 0.3s var(--ease);
}
.site-notice-item:last-child{border-bottom:none;padding-bottom:4px}
@keyframes fadeIn{from{opacity:0;transform:translateY(4px)}to{opacity:1;transform:translateY(0)}}
.site-notice-dot{
    flex-shrink:0;width:6px;height:6px;
    border-radius:50%;background:var(--accent);margin-top:9px;
}
.site-notice-content{flex:1;min-width:0}
.site-notice-head{display:flex;align-items:baseline;gap:10px;margin-bottom:4px;flex-wrap:wrap}
.site-notice-name{font-weight:600;font-size:13.5px;color:var(--text);letter-spacing:-0.005em}
.site-notice-time{font-size:11.5px;color:var(--text-mute)}
.site-notice-text{color:var(--text-light);font-size:13px;line-height:1.7;word-break:break-word}
.site-notice-text a{color:var(--accent);text-decoration:underline;text-underline-offset:2px}
.site-notice-text img{max-width:100%;border-radius:var(--radius-sm)}
.site-notice-text p{margin:4px 0}

/* ---------- 分页 ---------- */
.pager{
    display:flex;align-items:center;justify-content:space-between;
    gap:12px;flex-wrap:wrap;
    margin-top:16px;padding:14px 18px;
    background:var(--card-bg);
    backdrop-filter:var(--glass-blur);
    -webkit-backdrop-filter:var(--glass-blur);
    border:1px solid var(--border);
    border-radius:var(--radius);
    box-shadow:var(--shadow-sm);
    font-size:12.5px;
}
.pager .pager-info{color:var(--text-light)}
.pager .pager-nav{display:flex;gap:5px;align-items:center;flex-wrap:wrap}
.pager .pager-btn{
    display:inline-flex!important;align-items:center;justify-content:center;
    min-width:32px;height:32px;padding:0 11px;
    border:1px solid var(--border-strong);
    border-radius:6px;
    background:var(--card-solid);
    color:var(--text);
    font-size:12.5px;font-family:inherit;font-weight:400;
    cursor:pointer;
    transition:all var(--dur) var(--ease);
    line-height:1;text-decoration:none;
    pointer-events:auto!important;
}
.pager .pager-btn:hover:not(:disabled){border-color:var(--accent);color:var(--accent);background:var(--accent-soft)}
.pager .pager-btn.active{background:var(--primary);color:var(--primary-fg)!important;border-color:var(--primary);font-weight:500}
.pager .pager-btn:disabled{opacity:0.4;cursor:not-allowed}
.pager .pager-size{display:flex;align-items:center;gap:6px;color:var(--text-light)}
.pager .pager-size .pager-size-input{width:74px!important;padding:6px 8px;font-size:12.5px;text-align:center}

/* ---------- 过滤器栏 ---------- */
.filter-bar{display:flex;gap:6px;align-items:center;flex-wrap:wrap}
.filter-bar .chip{
    padding:5px 12px;border-radius:999px;
    background:transparent;border:1px solid var(--border-strong);
    font-size:12.5px;color:var(--text-light);
    transition:all var(--dur) var(--ease);cursor:pointer;
}
.filter-bar .chip:hover{border-color:var(--accent);color:var(--accent);background:var(--accent-soft)}
.filter-bar .chip.active{background:var(--primary);color:var(--primary-fg);border-color:var(--primary)}

/* ---------- 用户详情面板 ---------- */
.user-detail-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:12px}
@media (max-width:820px){.user-detail-grid{grid-template-columns:1fr}}
.user-detail-grid h4{font-size:13px;font-weight:600;margin-bottom:8px;color:var(--text)}
.user-detail-grid .mini-table{width:100%;border-collapse:collapse;font-size:12.5px}
.user-detail-grid .mini-table th,
.user-detail-grid .mini-table td{padding:7px 10px;border-bottom:1px solid var(--border);text-align:left}
.user-detail-grid .mini-table th{color:var(--text-light);font-weight:500;background:transparent}
.user-detail-grid .scroll-box{
    max-height:280px;overflow-y:auto;
    border:1px solid var(--border);
    border-radius:var(--radius-sm);
    background:var(--card-solid);
}

/* ---------- 前台访客弹窗 ---------- */
.site-popup-mask{
    position:fixed;inset:0;
    background:rgba(15, 23, 42, 0.45);
    backdrop-filter:blur(6px);
    -webkit-backdrop-filter:blur(6px);
    display:flex;align-items:center;justify-content:center;
    z-index:9998;padding:20px;
    opacity:0;transition:opacity 0.24s var(--ease);
    pointer-events:none;
}
.site-popup-mask.in{opacity:1;pointer-events:auto}
.site-popup{
    background:var(--card-solid);
    border:1px solid var(--border);
    border-radius:var(--radius-lg);
    box-shadow:var(--shadow-lg);
    max-width:560px;width:100%;
    max-height:80vh;overflow-y:auto;
    transform:translateY(8px) scale(0.97);
    opacity:0;
    transition:transform 0.28s var(--ease), opacity 0.28s var(--ease);
}
.site-popup-mask.in .site-popup{transform:translateY(0) scale(1);opacity:1}
.site-popup-header{
    display:flex;align-items:center;justify-content:space-between;
    gap:12px;padding:18px 22px;
    border-bottom:1px solid var(--border);
}
.site-popup-title{
    font-size:15px;font-weight:600;color:var(--text);
    letter-spacing:-0.01em;
}
.site-popup-body{
    padding:20px 22px;
    color:var(--text-light);
    font-size:13.5px;line-height:1.75;
    word-break:break-word;
}
.site-popup-body a{color:var(--accent);text-decoration:underline;text-underline-offset:2px}
.site-popup-body img{max-width:100%;border-radius:var(--radius-sm)}
.site-popup-body h1,.site-popup-body h2,.site-popup-body h3{color:var(--text);margin-bottom:8px;font-weight:600}
.site-popup-body p{margin-bottom:8px}
.site-popup-footer{
    padding:14px 22px 18px;
    display:flex;justify-content:flex-end;align-items:center;gap:12px;
}
.site-popup-countdown{
    font-size:12.5px;
    color:var(--text-mute);
    font-variant-numeric:tabular-nums;
}
.site-popup-footer .btn:disabled{
    opacity:0.45;cursor:not-allowed;
}

/* ---------- 滚动条 ---------- */
::-webkit-scrollbar{width:8px;height:8px}
::-webkit-scrollbar-track{background:transparent}
::-webkit-scrollbar-thumb{background:var(--border-strong);border-radius:4px}
::-webkit-scrollbar-thumb:hover{background:var(--text-mute)}

/* ---------- 响应式 ---------- */
@media (max-width:640px){
    .container{padding:0 16px}
    .nav-user{display:none}
    .nav-link{font-size:13px;padding:6px 8px}
    .site-notice-body{padding:4px 14px 12px}
    .site-notice-header{padding:10px 14px}
    .pager{flex-direction:column;align-items:stretch;padding:12px}
    .pager .pager-nav{justify-content:center}
    .pager .pager-size{justify-content:center}
    .alert-modal{padding:22px 20px 16px}
    .site-popup-header{padding:14px 16px}
    .site-popup-body{padding:16px}
    .site-popup-footer{padding:12px 16px 16px}
}