/* ============ 光纤监测系统 · AntD 设计系统（纯前端原型） ============ */
:root{
  --primary:#1677FF; --primary-hover:#4096FF; --primary-active:#0958D9;
  --success:#52C41A; --warning:#FAAD14; --error:#FF4D4F;
  --lv1:#F5222D; --lv2:#FA8C16; --lv3:#FAAD14; --lv4:#1677FF;
  --text:rgba(0,0,0,.88); --text-2:rgba(0,0,0,.65); --text-3:rgba(0,0,0,.45);
  --border:#d9d9d9; --split:#f0f0f0; --bg-layout:#F5F7FA; --bg-container:#fff;
  --radius:8px; --radius-sm:6px;
  --shadow-card:0 1px 2px rgba(0,0,0,.04),0 1px 6px -1px rgba(0,0,0,.02),0 2px 4px rgba(0,0,0,.02);
  --shadow-pop:0 6px 16px rgba(0,0,0,.08),0 3px 6px -4px rgba(0,0,0,.12),0 9px 28px 8px rgba(0,0,0,.05);
}
*{margin:0;padding:0;box-sizing:border-box}
html,body{height:100%}
body{font-family:"PingFang SC","苹方-简","HarmonyOS Sans SC","MiSans",-apple-system,"Segoe UI","Microsoft YaHei",sans-serif;font-size:15px;color:var(--text);background:var(--bg-layout)}
::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-thumb{background:rgba(0,0,0,.18);border-radius:3px}
a{color:var(--primary);text-decoration:none} a:hover{color:var(--primary-hover)}

/* ---------- 布局：顶部 + 侧边 ---------- */
#topbar{position:fixed;inset:0 0 auto 0;height:52px;background:linear-gradient(90deg,#040B18 0%,#0A1B33 100%);display:flex;align-items:center;padding:0 16px;box-shadow:0 2px 8px rgba(0,0,0,.35);z-index:100}
.logo{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:600;color:#fff;margin-right:24px;white-space:nowrap}
.logo .logo-mark{width:28px;height:28px;border-radius:7px;background:linear-gradient(135deg,#1677FF,#36CFFF);display:inline-flex;align-items:center;justify-content:center;color:#fff;font-size:14px;box-shadow:0 2px 10px rgba(54,207,255,.35)}
#topNav{display:flex;gap:2px;flex:1}
#topNav .tnav{padding:0 14px;height:52px;line-height:52px;cursor:pointer;color:rgba(255,255,255,.68);border-bottom:2px solid transparent;font-size:15px;white-space:nowrap;transition:.2s}
#topNav .tnav:hover{color:#fff}
#topNav .tnav.on{color:#fff;border-bottom-color:#1677FF;font-weight:500;background:rgba(22,119,255,.18)}
.top-right{display:flex;align-items:center;gap:12px;color:rgba(255,255,255,.85);font-size:14px}
.top-right .avatar{width:28px;height:28px;border-radius:50%;background:var(--primary);color:#fff;display:inline-flex;align-items:center;justify-content:center;font-size:13px;border:1.5px solid rgba(255,255,255,.35)}
#sidebar{position:fixed;top:52px;bottom:0;left:0;width:160px;background:#fff;border-right:1px solid var(--split);padding:8px 6px;z-index:90;overflow:auto}
#sidebar .s-group{font-size:13px;color:var(--text-3);padding:8px 10px 4px}
#sidebar .s-item{display:flex;align-items:center;gap:8px;padding:8px 10px;border-radius:var(--radius-sm);color:var(--text-2);cursor:pointer;margin-bottom:2px;font-size:14px}
#sidebar .s-item:hover{background:#F0F6FF;color:var(--primary)}
#sidebar .s-item.on{background:#E6F4FF;color:var(--primary);font-weight:500}
#sidebar .s-item .ico{width:16px;text-align:center;font-style:normal}
#main{position:fixed;top:52px;left:160px;right:0;bottom:0;overflow:auto;padding:16px 20px}
.page-head{display:flex;align-items:flex-start;justify-content:space-between;margin-bottom:14px;gap:12px}
.page-head h1{font-size:20px;font-weight:600}
.page-head .desc{color:var(--text-3);margin-top:4px;font-size:13.5px;max-width:820px}
.head-actions{display:flex;gap:8px;flex:none}

/* ---------- 通用控件（AntD 风格） ---------- */
.btn{display:inline-flex;align-items:center;gap:6px;height:34px;padding:0 16px;border-radius:var(--radius-sm);border:1px solid var(--border);background:#fff;color:var(--text);cursor:pointer;font-size:14.5px;transition:.2s}
.btn:hover{color:var(--primary);border-color:var(--primary)}
.btn-pri{background:var(--primary);border-color:var(--primary);color:#fff}
.btn-pri:hover{background:var(--primary-hover);border-color:var(--primary-hover);color:#fff}
.btn-danger{color:var(--error);border-color:var(--error)} .btn-danger:hover{color:#fff;background:var(--error);border-color:var(--error)}
.btn-sm{height:28px;padding:0 10px;font-size:13.5px}
.btn-text{border:none;background:none;color:var(--primary);padding:0 6px;height:auto} .btn-text:hover{color:var(--primary-hover);background:none}
.btn-text.danger{color:var(--error)}
.tag{display:inline-flex;align-items:center;height:24px;padding:0 8px;border-radius:4px;font-size:13px;border:1px solid;line-height:1}
.tag-blue{color:var(--primary);background:#E6F4FF;border-color:#91CAFF}
.tag-green{color:#389E0D;background:#F6FFED;border-color:#B7EB8F}
.tag-orange{color:#D46B08;background:#FFF7E6;border-color:#FFD591}
.tag-red{color:#CF1322;background:#FFF1F0;border-color:#FFA39E}
.tag-gold{color:#AD8B00;background:#FFFBE6;border-color:#FFE58F}
.tag-gray{color:var(--text-2);background:#FAFAFA;border-color:var(--border)}
.tag-lv1{color:#fff;background:var(--lv1);border-color:var(--lv1)}
.tag-lv2{color:#fff;background:var(--lv2);border-color:var(--lv2)}
.tag-lv3{color:#614700;background:var(--lv3);border-color:var(--lv3)}
.tag-lv4{color:#fff;background:var(--lv4);border-color:var(--lv4)}
.dot{display:inline-block;width:8px;height:8px;border-radius:50%;margin-right:6px}
.card-box{background:#fff;border-radius:var(--radius);box-shadow:var(--shadow-card);padding:16px 18px}
.divider{height:1px;background:var(--split);margin:14px 0}
.field-label{color:var(--text-3);font-size:14px}
.kv-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px 20px}
.kv .k{color:var(--text-3);font-size:13px;margin-bottom:3px}
.kv .v{color:var(--text);font-size:15px}

/* ---------- 搜索条 ---------- */
.search-bar{background:#fff;border-radius:var(--radius);box-shadow:var(--shadow-card);padding:12px 16px;margin-bottom:14px;display:flex;flex-wrap:wrap;gap:10px 16px;align-items:flex-end}
.sf{display:flex;flex-direction:column;gap:5px}
.sf label{font-size:13.5px;color:var(--text-2)}
.inp,.sel{height:34px;border:1px solid var(--border);border-radius:var(--radius-sm);padding:0 10px;font-size:14px;background:#fff;color:var(--text);min-width:150px;outline:none;transition:.2s}
.inp:focus,.sel:focus{border-color:var(--primary);box-shadow:0 0 0 2px rgba(5,145,255,.1)}
textarea.inp{height:80px;padding:8px 10px;resize:vertical}

/* ---------- 卡片列表 ---------- */
.card-list{display:grid;grid-template-columns:repeat(auto-fill,minmax(360px,1fr));gap:14px}
.item-card{background:#fff;border-radius:var(--radius);box-shadow:var(--shadow-card);border:1px solid transparent;transition:.2s;overflow:hidden;display:flex;flex-direction:column}
.item-card:hover{box-shadow:var(--shadow-pop);border-color:#D6E9FF;transform:translateY(-1px)}
.ic-head{display:flex;align-items:center;gap:10px;padding:12px 14px 8px}
.ic-ico{width:36px;height:36px;border-radius:8px;display:flex;align-items:center;justify-content:center;font-size:18px;font-style:normal;flex:none;background:#E6F4FF}
.ic-title{font-weight:600;font-size:15.5px;flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.ic-sub{color:var(--text-3);font-size:13px;margin-top:2px;font-weight:400}
.ic-body{padding:4px 14px 12px;display:grid;grid-template-columns:1fr 1fr;gap:6px 14px}
.ic-body .cell{font-size:14px;color:var(--text-2);display:flex;gap:6px;min-width:0}
.ic-body .cell b{color:var(--text-3);font-weight:400;flex:none}
.ic-body .cell span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.ic-foot{margin-top:auto;padding:8px 12px;border-top:1px solid var(--split);display:flex;align-items:center;gap:2px;background:#FAFBFC}
.ic-foot .grow{flex:1}
.ic-foot .btn-text{font-size:13.5px}
.ic-alarm{border-left:2px solid transparent}
.ic-alarm.lv1{border-left-color:var(--lv1)} .ic-alarm.lv2{border-left-color:var(--lv2)}
.ic-alarm.lv3{border-left-color:var(--lv3)} .ic-alarm.lv4{border-left-color:var(--lv4)}
.alarm-strip{height:4px;width:100%}
.empty{grid-column:1/-1;text-align:center;color:var(--text-3);padding:50px 0;background:#fff;border-radius:var(--radius);font-size:14px}
.pager{display:flex;justify-content:flex-end;gap:6px;margin-top:14px;align-items:center;color:var(--text-2)}
.pg{min-width:30px;height:30px;border:1px solid var(--border);border-radius:var(--radius-sm);display:inline-flex;align-items:center;justify-content:center;background:#fff;cursor:pointer;font-size:14px}
.pg.on{border-color:var(--primary);color:var(--primary)}

/* ---------- 抽屉 / 弹窗 ---------- */
.mask{position:fixed;inset:0;background:rgba(0,0,0,.45);z-index:1000;animation:fade .2s}
@keyframes fade{from{opacity:0}}
.drawer{position:fixed;top:0;right:0;bottom:0;width:820px;max-width:94vw;background:#fff;z-index:1001;box-shadow:var(--shadow-pop);display:flex;flex-direction:column;animation:slide .25s}
@keyframes slide{from{transform:translateX(60px);opacity:.4}}
.dw-head{padding:14px 20px;border-bottom:1px solid var(--split);display:flex;align-items:center;justify-content:space-between}
.dw-head h3{font-size:16.5px;font-weight:600}
.dw-body{flex:1;overflow:auto;padding:16px 20px}
.dw-foot{padding:12px 20px;border-top:1px solid var(--split);display:flex;justify-content:flex-end;gap:8px;background:#fff}
.modal{position:fixed;top:9vh;left:50%;transform:translateX(-50%);width:600px;max-width:94vw;background:#fff;border-radius:var(--radius);z-index:1001;box-shadow:var(--shadow-pop)}
.modal.wide{width:1040px}
.md-body{padding:16px 20px} .md-foot{padding:12px 20px;border-top:1px solid var(--split);display:flex;justify-content:flex-end;gap:8px}
.md-head{padding:14px 20px 0;font-size:16.5px;font-weight:600}
.x{cursor:pointer;color:var(--text-3);font-size:17px;padding:4px} .x:hover{color:var(--text)}
.confirm-box{display:flex;gap:14px;padding:20px} .confirm-ico{font-size:24px;color:var(--warning)}
/* form in drawer */
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px 20px}
.fg{display:flex;flex-direction:column;gap:5px} .fg.full{grid-column:1/-1}
.fg label{font-size:14px;color:var(--text-2)} .fg label .req{color:var(--error);margin-right:2px}
.fg .inp,.fg .sel{width:100%;min-width:0}
.form-sec{margin:18px 0 10px;font-weight:600;font-size:15px;display:flex;align-items:center;gap:8px}
.form-sec::before{content:"";width:3px;height:15px;background:var(--primary);border-radius:2px}
.switch{width:40px;height:22px;border-radius:11px;background:rgba(0,0,0,.25);position:relative;cursor:pointer;transition:.2s;flex:none}
.switch::after{content:"";position:absolute;top:2px;left:2px;width:18px;height:18px;border-radius:50%;background:#fff;transition:.2s}
.switch.on{background:var(--primary)} .switch.on::after{left:20px}
.chip-sel{display:flex;flex-wrap:wrap;gap:8px}
.chip{padding:5px 14px;border:1px solid var(--border);border-radius:15px;font-size:14px;color:var(--text-2);cursor:pointer}
.chip.on{border-color:var(--primary);color:var(--primary);background:#E6F4FF}

/* ---------- Tab / 时间轴 / 描述块 ---------- */
.tabs{display:flex;gap:4px;border-bottom:1px solid var(--split);margin-bottom:14px}
.tab{padding:10px 16px;cursor:pointer;color:var(--text-2);border-bottom:2px solid transparent;font-size:14.5px}
.tab.on{color:var(--primary);border-bottom-color:var(--primary);font-weight:500}
.timeline{padding-left:4px}
.tl-item{position:relative;padding:0 0 16px 20px;border-left:2px solid var(--split);margin-left:6px}
.tl-item:last-child{border-left-color:transparent}
.tl-item::before{content:"";position:absolute;left:-6px;top:2px;width:10px;height:10px;border-radius:50%;background:var(--primary);border:2px solid #fff;box-shadow:0 0 0 1px var(--primary)}
.tl-item.dim::before{background:#d9d9d9;box-shadow:0 0 0 1px #d9d9d9}
.tl-time{font-size:13px;color:var(--text-3);margin-bottom:2px}
.tl-title{font-weight:500;font-size:15px} .tl-desc{color:var(--text-2);font-size:14px;margin-top:3px}
.link-chain{display:flex;flex-wrap:wrap;gap:6px;align-items:center}
.link-chain .lc{background:#F0F6FF;border:1px solid #D6E9FF;border-radius:6px;padding:4px 10px;font-size:13px;color:var(--text-2);cursor:pointer}
.link-chain .lc:hover{border-color:var(--primary);color:var(--primary)}
.link-chain .sep{color:var(--text-3)}
.chart-box{height:220px;width:100%}
.stat-cards{display:grid;grid-template-columns:repeat(6,1fr);gap:14px;margin-bottom:14px}
.stat{background:#fff;border-radius:var(--radius);box-shadow:var(--shadow-card);padding:14px 16px;position:relative;overflow:hidden}
.stat .s-label{color:var(--text-3);font-size:14px}
.stat .s-value{font-size:28px;font-weight:600;margin-top:5px;font-variant-numeric:tabular-nums}
.stat .s-foot{font-size:13px;color:var(--text-3);margin-top:5px}
.stat .s-bg{position:absolute;right:-8px;top:-8px;font-size:60px;opacity:.08}
.grid-2{display:grid;grid-template-columns:2fr 1fr;gap:14px}
.grid-3{display:grid;grid-template-columns:1fr 1fr 1fr;gap:14px}
.mb16{margin-bottom:14px}
.sec-title{font-size:15.5px;font-weight:600;margin-bottom:12px;display:flex;align-items:center;justify-content:space-between}
/* 实时报警流 */
.alarm-feed{max-height:300px;overflow:auto}
.feed-item{display:flex;gap:10px;padding:9px 8px;border-bottom:1px solid var(--split);cursor:pointer;border-radius:4px;align-items:center}
.feed-item:hover{background:#F0F6FF}
.feed-item .f-t{flex:1;min-width:0}
.feed-item .f-name{font-size:14.5px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.feed-item .f-meta{font-size:13px;color:var(--text-3);margin-top:2px}
.feed-item .f-time{font-size:13px;color:var(--text-3);flex:none}
.feed-new{animation:flashrow 2s} @keyframes flashrow{0%{background:#FFF1F0}100%{background:transparent}}
/* 视频占位 */
.video-ph{position:relative;background:linear-gradient(160deg,#0b1220 0%,#12233c 60%,#0b1220 100%);border-radius:8px;aspect-ratio:16/9;display:flex;align-items:center;justify-content:center;color:rgba(255,255,255,.5);overflow:hidden}
.video-ph.w230{width:230px;flex:none;min-height:0}
.video-ph::before{content:"";position:absolute;inset:0;background:repeating-linear-gradient(0deg,transparent 0 3px,rgba(255,255,255,.02) 3px 4px)}
.video-ph .rec{position:absolute;top:8px;left:10px;color:#ff5b5b;font-size:12px;display:flex;align-items:center;gap:5px}
.video-ph .rec i{width:7px;height:7px;background:#ff5b5b;border-radius:50%;animation:blink 1.2s infinite} @keyframes blink{50%{opacity:.2}}
.video-ph .camname{position:absolute;bottom:8px;left:10px;font-size:13px;color:rgba(255,255,255,.75)}
.video-ph .play{width:48px;height:48px;border-radius:50%;border:2px solid rgba(255,255,255,.5);display:flex;align-items:center;justify-content:center;font-size:18px;color:rgba(255,255,255,.7)}
.video-wall{display:grid;gap:10px}
.video-wall.c4{grid-template-columns:repeat(2,1fr)} .video-wall.c9{grid-template-columns:repeat(3,1fr)}
/* toast */
#toast{position:fixed;top:62px;left:50%;transform:translateX(-50%);z-index:2000;display:none}
.toast-in{background:#fff;border-radius:8px;box-shadow:var(--shadow-pop);padding:10px 16px;display:flex;gap:8px;align-items:center;font-size:14.5px}
/* misc */
.badge-n{background:var(--error);color:#fff;border-radius:9px;font-size:12px;padding:1px 6px;margin-left:6px}
.hint{font-size:13px;color:var(--text-3);margin-top:4px}
.plan-tag{color:#722ED1;background:#F9F0FF;border-color:#D3ADF7}