:root{
  --primary:#14b8a6;
  --primary-dark:#0d9488;
  --primary-light:#ccfbf1;
  --bg:#f6f9fb;
  --card:#ffffff;
  --text:#0f172a;
  --muted:#64748b;
  --line:#e2e8f0;
  --shadow:0 4px 20px rgba(15,23,42,.06);
  --radius:16px;
}
*{box-sizing:border-box;margin:0;padding:0}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;background:var(--bg);color:var(--text);line-height:1.6;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
.container{max-width:1180px;margin:0 auto;padding:0 24px}

/* header */
.nav{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.85);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:64px}
.brand{display:flex;align-items:center;gap:12px;font-weight:800;font-size:20px;letter-spacing:.5px}
.brand .logo{width:40px;height:40px;border-radius:11px;background:linear-gradient(135deg,#14b8a6,#0ea5e9);display:flex;align-items:center;justify-content:center;color:#fff;font-size:20px;font-weight:800;box-shadow:0 4px 12px rgba(20,184,166,.35)}
.nav-right{display:flex;gap:10px;align-items:center}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:9px 20px;border-radius:10px;font-size:14px;font-weight:600;cursor:pointer;border:1px solid transparent;transition:.15s;white-space:nowrap}
.btn-ghost{background:#fff;border-color:var(--line);color:var(--text)}
.btn-ghost:hover{border-color:var(--primary);color:var(--primary)}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-dark)}
.btn-lg{padding:12px 28px;font-size:15px;border-radius:12px}

/* hero */
.hero{padding:64px 0 20px;text-align:center}
.hero h1{font-size:38px;line-height:1.25;letter-spacing:-.5px}
.hero h1 span{color:var(--primary)}
.hero p{color:var(--muted);margin-top:14px;font-size:16px}

/* sections */
.section{padding:40px 0}
.section-head{display:flex;align-items:baseline;justify-content:space-between;margin-bottom:22px}
.section-head h2{font-size:22px;font-weight:700}
.section-head .sub{color:var(--muted);font-size:13px}

/* node cards */
.nodes{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.node-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:18px;box-shadow:var(--shadow);position:relative}
.node-card .top{display:flex;justify-content:space-between;align-items:center}
.node-card .name{font-weight:600;font-size:15px}
.tag{font-size:11px;padding:2px 8px;border-radius:999px;background:#dcfce7;color:#16a34a;font-weight:600}
.tag.off{background:#fee2e2;color:#dc2626}
.node-card .proto{color:var(--muted);font-size:12px;margin-top:4px}
.node-card .bottom{display:flex;justify-content:space-between;margin-top:16px;padding-top:14px;border-top:1px dashed var(--line)}
.metric .v{font-size:20px;font-weight:700}
.metric .u{font-size:11px;color:var(--muted)}
.metric .lbl{font-size:11px;color:var(--muted)}

/* pricing */
.plans{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;align-items:stretch}
.plan-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:26px 22px;box-shadow:var(--shadow);display:flex;flex-direction:column;position:relative}
.plan-card.featured{border:2px solid var(--primary);transform:translateY(-4px)}
.badge{position:absolute;top:-12px;left:50%;transform:translateX(-50%);background:linear-gradient(135deg,#f59e0b,#f97316);color:#fff;font-size:11px;font-weight:700;padding:3px 12px;border-radius:999px}
.plan-card .pname{font-weight:700;font-size:16px}
.plan-card .pdesc{color:var(--muted);font-size:12px;margin:6px 0 14px}
.plan-card .price{font-size:34px;font-weight:800;color:var(--primary)}
.plan-card .price small{font-size:14px;color:var(--muted);font-weight:500}
.plan-card ul{list-style:none;margin:18px 0 22px;flex:1}
.plan-card li{font-size:13px;color:#334155;padding:5px 0;display:flex;gap:8px;align-items:flex-start}
.plan-card li::before{content:"✓";color:var(--primary);font-weight:700}
.plan-card .btn{width:100%}

/* dashboard */
.dash{padding:32px 0}
.grid{display:grid;grid-template-columns:320px 1fr;gap:20px}
.panel{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow)}
.panel h3{font-size:15px;margin-bottom:16px}
.stat-row{display:flex;justify-content:space-between;padding:10px 0;border-bottom:1px dashed var(--line);font-size:14px}
.stat-row:last-child{border:0}
.stat-row .k{color:var(--muted)}
.stat-row .v{font-weight:600}
.usage{margin:18px 0}
.bar{height:10px;border-radius:999px;background:#eef2f7;overflow:hidden}
.bar>i{display:block;height:100%;background:linear-gradient(90deg,#14b8a6,#0ea5e9);border-radius:999px}
.usage .num{font-size:13px;color:var(--muted);margin-top:8px}
.sub-link{display:flex;gap:8px;align-items:center;background:#f8fafc;border:1px dashed var(--line);border-radius:10px;padding:12px;font-size:13px;word-break:break-all}
.sub-card{margin-top:18px;padding-top:18px;border-top:1px dashed var(--line)}
.sub-title{font-size:13px;color:var(--muted);margin-bottom:10px;font-weight:600}
.sub-actions{margin-top:12px}
.btn-sm{padding:8px 16px;font-size:13px}
.import-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:10px}
.client-btn{padding:10px;border:1px solid var(--line);border-radius:10px;background:#fff;font-size:13px;font-weight:600;color:#334155;cursor:pointer;transition:.15s}
.client-btn:hover{border-color:var(--primary);color:var(--primary);background:var(--primary-light)}
.msg.show{display:block}

/* forms */
.auth-wrap{max-width:420px;margin:60px auto}
.auth-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:32px;box-shadow:var(--shadow)}
.auth-card h2{font-size:22px;margin-bottom:6px}
.auth-card .tip{color:var(--muted);font-size:13px;margin-bottom:22px}
.field{margin-bottom:16px}
.field label{font-size:13px;color:var(--muted);display:block;margin-bottom:6px}
.field input{width:100%;padding:11px 14px;border:1px solid var(--line);border-radius:10px;font-size:14px;outline:none;transition:.15s}
.field input:focus{border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-light)}
.auth-card .btn{width:100%;margin-top:6px}
.auth-alt{text-align:center;margin-top:16px;font-size:13px;color:var(--muted)}
.auth-alt a{color:var(--primary);font-weight:600}
.msg{font-size:13px;margin-top:12px;padding:10px 12px;border-radius:8px;display:none}
.msg.err{display:block;background:#fef2f2;color:#dc2626}
.msg.ok{display:block;background:#f0fdfa;color:#0d9488}

/* table */
table{width:100%;border-collapse:collapse;font-size:13px}
th,td{text-align:left;padding:11px 10px;border-bottom:1px solid var(--line)}
th{color:var(--muted);font-weight:500;font-size:12px}
.st{padding:2px 10px;border-radius:999px;font-size:11px;font-weight:600}
.st.ok{background:#dcfce7;color:#16a34a}
.st.wait{background:#fef3c7;color:#d97706}

/* footer */
.footer{padding:36px 0;text-align:center;color:var(--muted);font-size:13px;border-top:1px solid var(--line);margin-top:40px}

/* sidebar user center */
.uc{display:grid;grid-template-columns:220px 1fr;gap:20px;padding:32px 0}
.uc-side{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:14px;box-shadow:var(--shadow);height:fit-content}
.uc-side a{display:flex;gap:10px;align-items:center;padding:11px 14px;border-radius:10px;font-size:14px;color:#334155;cursor:pointer}
.uc-side a.active,.uc-side a:hover{background:var(--primary-light);color:var(--primary-dark)}
.uc-main{min-width:0}

.empty{color:var(--muted);text-align:center;padding:40px;font-size:14px}
.loading{color:var(--muted);text-align:center;padding:30px}

@media(max-width:900px){
  .nodes,.plans{grid-template-columns:repeat(2,1fr)}
  .grid,.uc{grid-template-columns:1fr}
  .hero h1{font-size:28px}
}
@media(max-width:560px){
  .nodes,.plans{grid-template-columns:1fr}
}

.btn-warning{background:#f59e0b;color:#fff}
.btn-warning:hover{background:#d97706}
.btn-red{background:#dc2626;border-color:#dc2626;color:#fff}
.btn-red:hover{background:#b91c1c;border-color:#b91c1c}
.reset-btn{border:1px solid #fb923c;color:#ea580c;background:#fff7ed;font-weight:600}
.reset-btn:hover{background:#ffedd5;border-color:#ea580c}
.client-btn.clash{border-color:#f97316;color:#ea580c;background:#fff7ed}
.client-btn.clash:hover{background:#ffedd5}
.client-btn.v2rayng{border-color:#3b82f6;color:#2563eb;background:#eff6ff}
.client-btn.v2rayng:hover{background:#dbeafe}
.client-btn.shadowrocket{border-color:#64748b;color:#334155;background:#f1f5f9}
.client-btn.shadowrocket:hover{background:#e2e8f0}
.client-btn.surge{border-color:#ef4444;color:#dc2626;background:#fef2f2}
.client-btn.surge:hover{background:#fee2e2}

.modal-mask{position:fixed;inset:0;background:rgba(15,23,42,.45);display:flex;align-items:center;justify-content:center;z-index:999;padding:20px}
.modal{background:#fff;border-radius:16px;max-width:420px;width:100%;padding:28px;box-shadow:0 20px 50px rgba(0,0,0,.2)}
.modal h4{font-size:18px;margin-bottom:14px}
.modal .modal-body{color:#475569;font-size:14px;line-height:1.8}
.modal .modal-body ul{padding-left:18px;margin:8px 0}
.modal .modal-fee{background:#fff7ed;color:#ea580c;font-weight:700;padding:6px 12px;border-radius:8px;display:inline-block;margin:6px 0}
.modal .modal-actions{display:flex;gap:10px;margin-top:22px;justify-content:flex-end}

.reset-btn-xs{font-size:12px;padding:2px 9px;border-radius:6px;border:1px solid #fb923c;color:#ea580c;background:#fff7ed;cursor:pointer;line-height:1.4}
.reset-btn-xs:hover{background:#ffedd5}

.form-row{margin-bottom:12px}
.form-row label{display:block;font-size:13px;color:#64748b;margin-bottom:5px}
.form-row input{width:100%;box-sizing:border-box;padding:9px 12px;border:1px solid #e2e8f0;border-radius:8px;font-size:14px;outline:none}
.form-row input:focus{border-color:#14b8a6;box-shadow:0 0 0 3px rgba(20,184,166,.12)}

.panel table{width:100%;border-collapse:collapse}
.panel table th{font-size:12px;color:#94a3b8;font-weight:500;text-align:left;padding:4px 6px;white-space:nowrap;border-bottom:1px solid #eef2f7}
.panel table td{font-size:13px;padding:3px 6px;border-bottom:1px solid #f1f5f9;vertical-align:middle}
.panel table col.c-no{width:18%}
.panel table col.c-plan{width:30%}
.panel table col.c-amt{width:13%}
.panel table col.c-st{width:14%}
.panel table col.c-time{width:14%}
.panel table col.c-act{width:auto}
.panel table td:nth-child(4) .st{white-space:nowrap;font-size:12px}
.panel table td:last-child{white-space:nowrap;text-align:right}
.panel table td:last-child .btn{padding:4px 10px;font-size:12px}
.panel table .tn{font-family:monospace;font-size:12px;color:#64748b;white-space:nowrap}
.panel table td:nth-child(3),.panel table th:nth-child(3){white-space:nowrap}
.panel table td:nth-child(4) .st{white-space:nowrap}
.panel table td:last-child{white-space:nowrap;text-align:right}

.scroll-x{overflow-x:auto;-webkit-overflow-scrolling:touch;scrollbar-width:thin;scrollbar-color:#cbd5e1 #f1f5f9}
.scroll-x::-webkit-scrollbar{height:10px}
.scroll-x::-webkit-scrollbar-track{background:#f1f5f9}
.scroll-x::-webkit-scrollbar-thumb{background:#cbd5e1;border-radius:6px}

.netcard{background:#fff;border:1px solid #e8eef5;border-radius:14px;padding:12px 18px;max-width:440px;margin:0 auto;box-shadow:0 3px 14px rgba(20,120,140,.05)}
.netcard-title{display:flex;align-items:center;gap:8px;font-size:13px;color:#475569;margin-bottom:10px}
.netcard-title .dot{width:9px;height:9px;border-radius:50%;background:#22c55e;box-shadow:0 0 0 4px rgba(34,197,94,.15)}
.netcard-body{display:flex;align-items:center;gap:16px}
.net-item{display:flex;align-items:center;gap:9px}
.net-ic{width:30px;height:30px;border-radius:9px;display:flex;align-items:center;justify-content:center;font-size:15px}
.net-ic.down{background:#eff6ff;color:#3b82f6}
.net-ic.up{background:#fdf2f8;color:#ec4899}
.net-label{font-size:12px;color:#94a3b8}
.net-val{font-size:17px;font-weight:700;color:#0f172a;font-family:monospace}
.net-val small{font-size:12px;color:#94a3b8;font-weight:400}
.net-div{width:1px;height:28px;background:#eef2f7}

.netpill{display:inline-flex;align-items:center;gap:14px;margin-top:18px;background:rgba(255,255,255,.85);border:1px solid #e6eef5;border-radius:999px;padding:7px 16px;font-size:12.5px;color:#64748b;box-shadow:0 2px 10px rgba(20,120,140,.05)}
.netpill .dot{width:8px;height:8px;border-radius:50%;background:#22c55e;box-shadow:0 0 0 3px rgba(34,197,94,.15)}
.netpill .np{font-family:monospace;color:#334155}
.netpill .np b{color:#0f766e;font-weight:700}

.footer .fd{color:#0f766e;font-weight:700;font-family:monospace;letter-spacing:.3px}

/* ===== 弹窗美化增强 ===== */
.modal-mask{animation:ncFade .18s ease}
.modal{animation:ncPop .22s cubic-bezier(.2,.8,.3,1.1)}
@keyframes ncFade{from{opacity:0}to{opacity:1}}
@keyframes ncPop{from{opacity:0;transform:translateY(10px) scale(.97)}to{opacity:1;transform:none}}
.modal h4{display:flex;align-items:center;gap:8px}
.modal h4::before{content:"";width:4px;height:18px;border-radius:2px;background:linear-gradient(180deg,#14b8a6,#0ea5e9)}
.modal .modal-actions .btn{min-width:96px;justify-content:center}
.modal .modal-actions .btn-primary{background:linear-gradient(135deg,#14b8a6,#0ea5e9);border:none}
.modal .modal-body a{color:#0f766e;font-weight:600}
.msg.show{padding:10px 14px;border-radius:10px;margin-top:10px;font-size:13px;line-height:1.6}
.msg.show.ok{background:#f0fdfa;border:1px solid #99f6e4;color:#0f766e}
.msg.show.err{background:#fef2f2;border:1px solid #fecaca;color:#dc2626}
.uc-side a.uc-buy{color:#0f766e;font-weight:700}
.uc-side a.uc-buy:hover{color:#0d9488}
.domainpill{display:inline-block;margin-top:80px;background:linear-gradient(135deg,rgba(20,184,166,.12),rgba(14,165,233,.10));border:1px solid #99f6e4;border-radius:999px;padding:8px 18px;font-size:13px;color:#0f766e;box-shadow:0 2px 10px rgba(20,184,166,.12)}
.domainpill b{color:#0f766e;font-weight:800;letter-spacing:.5px;font-size:14px}