:root{
  --primary:#0d74ce;--primary-hover:#0b65b4;--primary-soft:#e6f4fe;--ring:#5eb1ef;
  --hero:#1565ad;--bg:#f5f7fa;--card:#fff;--border:#d9e1ea;--text:#202020;--muted:#5b6470;
  --muted-bg:#edf1f5;--red:#c8313a;--red-soft:#fdecec;--green:#18794e;--green-soft:#e9f6ef;
  --amber:#a35200;--amber-soft:#fff4e5;--radius:10px;--radius-lg:16px;
  --shadow:0 1px 2px rgba(16,24,40,.04),0 4px 16px rgba(16,24,40,.05);
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--text);font:14px/1.6 Inter,-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Segoe UI",sans-serif}
a{color:var(--primary);text-decoration:none}
a:hover{color:var(--primary-hover)}
h1,h2,h3,h4{margin:0;line-height:1.25;color:var(--text)}
p{margin:0}
svg.i{width:18px;height:18px;flex:none;stroke:currentColor;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;vertical-align:-3px}
.muted{color:var(--muted)}.small{font-size:12px}.mono{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:12.5px;word-break:break-all}
.hidden{display:none!important}

/* 按钮与表单 */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;height:38px;padding:0 16px;border-radius:8px;border:1px solid transparent;background:var(--primary);color:#fff;font:inherit;font-weight:600;cursor:pointer;white-space:nowrap;transition:background .15s,border-color .15s,color .15s}
.btn:hover{background:var(--primary-hover);color:#fff}
.btn:disabled,.btn.disabled{opacity:.5;cursor:not-allowed;pointer-events:none}
.btn-outline{background:var(--card);border-color:var(--border);color:var(--text)}
.btn-outline:hover{background:var(--muted-bg);color:var(--text)}
.btn-soft{background:var(--primary-soft);color:var(--primary);border-color:#cde6fb}
.btn-soft:hover{background:#d5ecfd;color:var(--primary)}
.btn-danger{background:var(--red)}.btn-danger:hover{background:#ad2830}
.btn-ghost{background:transparent;color:var(--muted)}.btn-ghost:hover{background:var(--muted-bg);color:var(--text)}
.btn-sm{height:30px;padding:0 10px;font-size:12.5px;border-radius:7px}
.btn-lg{height:46px;padding:0 22px;font-size:15px}
.btn-block{width:100%}
input,select,textarea{width:100%;height:40px;padding:0 12px;border:1px solid var(--border);border-radius:8px;background:#fff;color:var(--text);font:inherit;outline:none;transition:border-color .15s,box-shadow .15s}
textarea{height:auto;min-height:90px;padding:10px 12px;resize:vertical}
input:focus,select:focus,textarea:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(94,177,239,.35)}
input[type=checkbox],input[type=radio]{width:auto;height:auto;accent-color:var(--primary)}
label.f{display:block;margin:14px 0 6px;font-size:13px;font-weight:600;color:var(--text)}
.help{margin-top:5px;font-size:12px;color:var(--muted)}
.check{display:flex;align-items:center;gap:8px;margin-top:14px;font-size:13.5px;cursor:pointer}
.grid2{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:0 16px}
.actions{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
form.inline{display:inline}

/* 通用卡片、提示、标签 */
.card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius-lg);padding:20px;box-shadow:var(--shadow)}
.card+.card{margin-top:16px}
.card-h{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:14px}
.card-h h2,.card-h h3{font-size:16px}
.flash{display:flex;gap:8px;align-items:flex-start;padding:11px 14px;border-radius:10px;margin-bottom:16px;border:1px solid #b7dcf9;background:var(--primary-soft);color:#0b4f8c}
.flash.ok{background:var(--green-soft);border-color:#b4e0c8;color:var(--green)}
.flash.error{background:var(--red-soft);border-color:#f3c0c3;color:var(--red)}
.tag{display:inline-flex;align-items:center;gap:4px;padding:1px 9px;border-radius:99px;font-size:12px;font-weight:600;background:var(--muted-bg);color:var(--muted);white-space:nowrap}
.tag.blue{background:var(--primary-soft);color:var(--primary)}
.tag.green{background:var(--green-soft);color:var(--green)}
.tag.red{background:var(--red-soft);color:var(--red)}
.tag.amber{background:var(--amber-soft);color:var(--amber)}
.empty{padding:36px 12px;text-align:center;color:var(--muted)}
.table-wrap{overflow-x:auto;margin:0 -4px}
table{width:100%;border-collapse:collapse;font-size:13.5px}
th,td{text-align:left;padding:10px 8px;border-bottom:1px solid var(--border);vertical-align:middle}
th{font-size:12.5px;font-weight:600;color:var(--muted);white-space:nowrap;background:#fafbfc}
tr:last-child td{border-bottom:0}
.bar{height:8px;border-radius:99px;background:var(--muted-bg);overflow:hidden;min-width:90px}
.bar>i{display:block;height:100%;background:var(--primary);border-radius:99px}
.bar.full>i{background:var(--red)}

/* 顶部导航 */
.topnav{position:sticky;top:0;z-index:30;background:rgba(255,255,255,.88);backdrop-filter:saturate(180%) blur(12px);-webkit-backdrop-filter:saturate(180%) blur(12px);border-bottom:1px solid var(--border)}
.topnav .in{max-width:1200px;margin:0 auto;height:60px;padding:0 20px;display:flex;align-items:center;gap:28px}
.brand{display:flex;align-items:center;gap:9px;font-weight:800;font-size:17px;color:var(--text)}
.brand:hover{color:var(--text)}
.logo{width:30px;height:30px;border-radius:9px;background:linear-gradient(135deg,#2a8de0,#0d5fa8);display:grid;place-items:center;color:#fff}
.logo svg{width:18px;height:18px}
.navlinks{display:flex;gap:22px;flex:1}
.navlinks a{color:#3d4652;font-weight:500}
.navlinks a:hover{color:var(--primary)}
.navright{display:flex;align-items:center;gap:8px;margin-left:auto}
.menu-btn{display:none;width:38px;height:38px;border-radius:8px;border:1px solid var(--border);background:#fff;align-items:center;justify-content:center;cursor:pointer;color:var(--text)}
.mobile-menu{display:none;border-top:1px solid var(--border);background:#fff;padding:8px 20px 14px}
.mobile-menu a{display:block;padding:10px 2px;color:var(--text);font-weight:500;border-bottom:1px solid var(--muted-bg)}
.mobile-menu.open{display:block}

/* 首页 */
.wrap{max-width:1200px;margin:0 auto;padding:0 20px}
.hero{margin:20px auto 0;background:var(--hero);border-radius:36px;color:#fff;padding:72px 56px;display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:center;overflow:hidden;position:relative}
.hero:after{content:"";position:absolute;right:-120px;top:-120px;width:420px;height:420px;border-radius:50%;background:radial-gradient(circle,rgba(255,255,255,.14),rgba(255,255,255,0) 70%)}
.hero .chip{display:inline-flex;align-items:center;gap:6px;padding:4px 10px;border:1px solid rgba(255,255,255,.45);border-radius:8px;font-size:12.5px;margin-bottom:22px}
.hero h1{color:#fff;font-size:46px;font-weight:800;letter-spacing:-.5px;line-height:1.18}
.hero h1 span{display:block}
.hero h1 span+span{color:#cfe7fb}
.hero .desc{margin-top:20px;font-size:15px;opacity:.92}
.hero ul{list-style:none;padding:0;margin:20px 0 0;display:flex;flex-wrap:wrap;gap:10px 22px;font-size:13.5px;font-weight:500}
.hero li{display:flex;align-items:center;gap:6px}
.hero .cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}
.hero .btn-white{background:#fff;color:var(--hero)}
.hero .btn-white:hover{background:#eef6fd;color:var(--hero)}
.hero .btn-line{background:transparent;color:#fff;border-color:rgba(255,255,255,.6)}
.hero .btn-line:hover{background:rgba(255,255,255,.1);color:#fff}
.hero-art{position:relative;z-index:1;display:flex;justify-content:center}
.mock{width:100%;max-width:400px;background:#fff;border-radius:18px;box-shadow:0 30px 60px rgba(4,30,66,.35);padding:18px;color:var(--text)}
.mock .row{display:flex;align-items:center;justify-content:space-between;padding:10px 12px;border-radius:10px;background:var(--bg);margin-top:8px;font-size:13px}
.mock .row b{font-weight:600}
.mock .on{display:grid;place-items:center;margin:8px auto 4px;width:84px;height:84px;border-radius:50%;background:var(--primary);color:#fff;box-shadow:0 0 0 10px var(--primary-soft)}
.mock .on svg{width:34px;height:34px}
.mock .lat{color:var(--green);font-weight:600}
.section{padding:80px 0 0}
.section-h{text-align:center;margin-bottom:36px}
.section-h .eyebrow{display:inline-block;padding:3px 12px;border:1px solid var(--border);border-radius:8px;font-size:12.5px;color:var(--muted);background:#fff;margin-bottom:14px}
.section-h h2{font-size:32px;font-weight:800;letter-spacing:-.3px}
.section-h p{margin-top:10px;color:var(--muted);font-size:15px}
.features{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.feature{background:#fff;border:1px solid var(--border);border-radius:var(--radius-lg);padding:24px;box-shadow:var(--shadow)}
.feature .ic{width:42px;height:42px;border-radius:12px;background:var(--primary-soft);color:var(--primary);display:grid;place-items:center;margin-bottom:16px}
.feature h3{font-size:16px;margin-bottom:8px}
.feature p{color:var(--muted);font-size:13.5px}

/* 周期切换 */
.periods{display:flex;justify-content:center;margin-bottom:34px}
.pills{display:inline-flex;gap:4px;padding:5px;border:1px solid var(--border);background:#fff;border-radius:22px;box-shadow:var(--shadow);overflow-x:auto;max-width:100%}
.pill{border:0;background:transparent;border-radius:16px;padding:7px 20px;cursor:pointer;font:inherit;color:var(--text);text-align:center;min-width:92px;transition:background .15s}
.pill b{display:block;font-weight:600;font-size:14px}
.pill small{display:block;font-size:11.5px;font-weight:600;background:linear-gradient(90deg,#e5484d,#d6409f,#8e4ec6);-webkit-background-clip:text;background-clip:text;color:transparent;white-space:nowrap}
.pill small.plain{background:none;color:var(--muted);font-weight:500}
.pill:hover{background:var(--muted-bg)}
.pill.active{background:var(--primary-soft)}
.pill.active b{color:var(--primary)}

/* 套餐卡片 */
.plans{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:20px;align-items:start;max-width:1080px;margin:0 auto}
.plans.n1{max-width:380px}.plans.n2{max-width:740px}
.plan{position:relative;background:#fff;border:1px solid var(--border);border-radius:20px;padding:30px 24px 24px;box-shadow:var(--shadow);text-align:center}
.plan .badge{position:absolute;top:-14px;left:50%;transform:translateX(-50%);display:inline-flex;align-items:center;gap:5px;background:#d93d42;color:#fff;font-size:12.5px;font-weight:700;padding:4px 14px;border-radius:99px;white-space:nowrap;box-shadow:0 4px 10px rgba(217,61,66,.3)}
.plan h3{font-size:22px;font-weight:800;color:#113264}
.plan .pdesc{color:var(--muted);font-size:13px;margin-top:6px}
.plan .save{display:inline-block;margin-top:12px;padding:2px 10px;border-radius:7px;border:1px solid #cde6fb;background:#f4faff;font-size:12px;font-weight:600}
.plan .save span{background:linear-gradient(90deg,#e5484d,#d6409f,#8e4ec6);-webkit-background-clip:text;background-clip:text;color:transparent}
.plan .avg{margin-top:14px;font-size:12.5px;color:var(--muted)}
.plan .price{font-size:40px;font-weight:800;letter-spacing:-1px;color:#113264;line-height:1.15}
.plan .price small{font-size:14px;font-weight:500;letter-spacing:0;color:var(--muted)}
.plan .total{margin-top:6px;font-size:13px;color:var(--muted)}
.plan .orig{font-size:12.5px;color:#8b95a1;text-decoration:line-through}
.plan .na{margin:28px 0 8px;color:var(--muted)}
.plan .buy{margin-top:18px}
.plan .stock{margin-top:8px;font-size:12px;color:var(--muted)}
.plan .specs{list-style:none;padding:18px 0 0;margin:20px 0 0;border-top:1px solid var(--border);text-align:left;display:grid;gap:11px;font-size:13.5px}
.plan .specs li{display:flex;gap:9px;align-items:flex-start}
.plan .specs svg{color:var(--primary);margin-top:1px}
.plan .specs+.specs{margin-top:16px;padding-top:16px}
.plan.featured{background:var(--hero);border-color:var(--hero);color:#fff;box-shadow:0 20px 40px rgba(21,101,173,.28)}
.plan.featured h3,.plan.featured .price{color:#fff}
.plan.featured .pdesc,.plan.featured .avg,.plan.featured .total,.plan.featured .price small,.plan.featured .stock,.plan.featured .na{color:rgba(255,255,255,.82)}
.plan.featured .orig{color:rgba(255,255,255,.6)}
.plan.featured .save{background:#fff;border-color:#fff}
.plan.featured .specs{border-color:rgba(255,255,255,.25)}
.plan.featured .specs svg{color:#fff}
.plan.featured .btn{background:#fff;color:var(--hero)}
.plan.featured .btn:hover{background:#eef6fd}
.plan .btn-soft{border-color:#cde6fb}

/* 下载 */
.downloads{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px}
.dl{display:flex;align-items:center;gap:14px;background:#fff;border:1px solid var(--border);border-radius:var(--radius-lg);padding:18px;box-shadow:var(--shadow);color:var(--text);transition:border-color .15s,transform .15s}
.dl:hover{border-color:var(--primary);color:var(--text);transform:translateY(-2px)}
.dl .ic{width:44px;height:44px;border-radius:12px;background:var(--muted-bg);display:grid;place-items:center;color:var(--primary)}
.dl b{display:block}.dl span{font-size:12.5px;color:var(--muted)}
.dl .go{margin-left:auto;color:var(--muted)}
.footer{margin-top:90px;border-top:1px solid var(--border);background:#fff}
.footer .in{max-width:1200px;margin:0 auto;padding:22px 20px;display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;font-size:12.5px;color:var(--muted)}

/* 登录注册 */
.auth-bg{min-height:calc(100vh - 61px);background-image:radial-gradient(#cdd6e1 1px,transparent 1px);background-size:22px 22px;display:flex;align-items:center;justify-content:center;padding:40px 16px}
.auth-box{width:100%;max-width:360px}
.auth-box .logo{width:48px;height:48px;border-radius:14px;margin:0 auto 14px}
.auth-box .logo svg{width:26px;height:26px}
.auth-box h1{text-align:center;font-size:22px;font-weight:700}
.auth-box .sub{text-align:center;color:var(--muted);margin-top:6px;margin-bottom:22px}
.auth-box input{height:44px}
.auth-box .btn{height:44px;margin-top:20px}
.auth-switch{display:flex;justify-content:space-between;margin-top:18px;font-size:13.5px}
.divider{display:flex;align-items:center;gap:12px;margin:18px 0;color:var(--muted);font-size:12.5px}
.divider:before,.divider:after{content:"";flex:1;height:1px;background:var(--border)}

/* 用户中心布局 */
.app{display:flex;min-height:calc(100vh - 61px);max-width:1280px;margin:0 auto}
.side{width:230px;flex:none;padding:22px 14px;border-right:1px solid var(--border);background:#fff;position:sticky;top:61px;height:calc(100vh - 61px);overflow-y:auto}
.side a,.side button{display:flex;align-items:center;gap:10px;width:100%;padding:9px 12px;margin-bottom:2px;border-radius:9px;color:#3d4652;font:inherit;font-weight:500;border:0;background:none;cursor:pointer;text-align:left}
.side a:hover,.side button:hover{background:var(--muted-bg);color:var(--text)}
.side a.on{background:var(--primary-soft);color:var(--primary)}
.side .sep{height:1px;background:var(--border);margin:12px 6px}
.side .who{padding:4px 12px 14px;font-size:12.5px;color:var(--muted);word-break:break-all}
.main{flex:1;min-width:0;padding:26px 28px 60px}
.page-h{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:20px;flex-wrap:wrap}
.page-h h1{font-size:22px;font-weight:700}
.tabbar{display:none}

/* 仪表盘 */
.sub-top{display:flex;align-items:baseline;gap:8px 12px;flex-wrap:wrap;margin-bottom:12px}
.sub-name{font-size:20px}
.sub-exp{margin-left:auto;font-size:13.5px;color:var(--muted)}.sub-exp b{color:var(--text)}
.more{margin-top:14px;border-top:1px solid var(--border);padding-top:4px}
.more summary{display:inline-flex;align-items:center;gap:6px;padding:8px 0;font-size:13.5px;font-weight:600;color:var(--primary);cursor:pointer;list-style:none}
.more summary::-webkit-details-marker{display:none}
.more summary .i:last-child{width:14px;height:14px;transform:rotate(90deg);transition:transform .15s}
.more[open] summary .i:last-child{transform:rotate(-90deg)}
.more-body{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:20px;align-items:start;padding:6px 0 4px}
.subcard{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:24px}
.sub-meta{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin:16px 0}
.meta{background:var(--bg);border-radius:12px;padding:12px 14px}
.meta span{display:block;font-size:12px;color:var(--muted)}
.meta b{font-size:16px}
.linkbox{display:flex;gap:8px;align-items:center;background:var(--bg);border:1px solid var(--border);border-radius:10px;padding:6px 6px 6px 12px}
.linkbox code{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-family:ui-monospace,Menlo,monospace;font-size:12.5px}
.imports{display:grid;grid-template-columns:repeat(auto-fill,minmax(130px,1fr));gap:8px}
.imports .btn{height:40px}
.qr{background:#fff;border:1px solid var(--border);border-radius:12px;padding:8px;text-align:center}
.qr svg.segno{display:block;width:170px;height:170px}
.qr span{display:block;font-size:12px;color:var(--muted);margin-top:2px}
.cols{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:16px;margin-top:16px}
.cols .card+.card{margin-top:0}
.ann{padding:12px 0;border-bottom:1px solid var(--border)}
.ann:last-child{border-bottom:0}
.ann b{display:block}
.ann p{color:var(--muted);font-size:13px;white-space:pre-line;margin-top:4px}

/* 结算 */
.checkout{display:grid;grid-template-columns:minmax(0,1fr) 360px;gap:20px;align-items:start}
.opt-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(140px,1fr));gap:10px}
.opt{position:relative;display:block;border:1.5px solid var(--border);border-radius:12px;padding:12px 14px;cursor:pointer;background:#fff;transition:border-color .15s,background .15s}
.opt input{position:absolute;opacity:0;pointer-events:none}
.opt b{display:block;font-size:14px}
.opt span{font-size:12.5px;color:var(--muted)}
.opt em{font-style:normal;font-size:11.5px;font-weight:600;color:#d6409f}
.opt:hover{border-color:#9ccdf5}
.opt.on{border-color:var(--primary);background:#f4faff}
.bill .line{display:flex;justify-content:space-between;padding:7px 0;font-size:13.5px}
.bill .line span{color:var(--muted)}
.bill .total{border-top:1px dashed var(--border);margin-top:8px;padding-top:14px;font-size:15px;font-weight:700}
.bill .total b{font-size:24px;color:var(--primary)}
.notice{border-radius:10px;padding:11px 13px;font-size:13px;background:var(--amber-soft);color:var(--amber);margin-top:14px}
.notice.blue{background:var(--primary-soft);color:#0b4f8c}
.specs-inline{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}

/* 订单状态 */
.status-hero{text-align:center;padding:30px 10px}
.status-hero .ic{width:64px;height:64px;border-radius:50%;display:grid;place-items:center;margin:0 auto 14px;background:var(--primary-soft);color:var(--primary)}
.status-hero .ic svg{width:30px;height:30px}
.status-hero.ok .ic{background:var(--green-soft);color:var(--green)}
.status-hero.bad .ic{background:var(--amber-soft);color:var(--amber)}
.spin{animation:spin 1s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
.kv{display:grid;grid-template-columns:110px 1fr;gap:8px 12px;font-size:13.5px}
.kv span{color:var(--muted)}

/* 使用教程 */
.guide h3{display:flex;align-items:center;gap:8px;font-size:16px}
.guide ol{margin:12px 0 0;padding-left:20px;color:#3d4652}
.guide li{margin:6px 0}

/* 弹窗 */
dialog{border:0;border-radius:16px;padding:0;max-width:440px;width:calc(100% - 32px);box-shadow:0 30px 70px rgba(0,0,0,.25)}
dialog::backdrop{background:rgba(15,23,42,.45)}
dialog .dh{padding:22px 22px 0}
dialog .dh h3{display:flex;gap:8px;align-items:center;font-size:17px;color:var(--red)}
dialog .db{padding:12px 22px;color:#3d4652;font-size:13.5px}
dialog .db p+p{margin-top:8px}
dialog .df{padding:14px 22px 20px;display:flex;justify-content:flex-end;gap:8px}

/* 后台 */
.admin .side{background:#111827;border-right:0}
.admin .side .brand{color:#fff;padding:0 10px 16px}
.admin .side a,.admin .side button{color:#c3cad5}
.admin .side a:hover,.admin .side button:hover{background:#1f2937;color:#fff}
.admin .side a.on{background:var(--primary);color:#fff}
.admin .side .sep{background:#273244}
.admin .app{max-width:none;min-height:100vh}
.admin .side{top:0;height:100vh}
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:14px;margin-bottom:16px}
.stat{background:#fff;border:1px solid var(--border);border-radius:14px;padding:16px 18px;box-shadow:var(--shadow)}
.stat span{font-size:12.5px;color:var(--muted)}
.stat b{display:block;font-size:24px;margin-top:4px}
.filters{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:14px}
.filters input,.filters select{width:auto;min-width:150px;height:36px}
.pw-box{font-family:ui-monospace,Menlo,monospace;font-size:18px;font-weight:700;letter-spacing:.5px;background:#fff;border:1px dashed var(--green);border-radius:8px;padding:6px 12px;display:inline-block;margin-top:6px;color:var(--text)}
.admin-top{display:none}

@media (max-width:1000px){
  .features{grid-template-columns:repeat(2,1fr)}
  .hero{grid-template-columns:1fr;padding:48px 32px}
  .checkout{grid-template-columns:minmax(0,1fr)}
}
@media (max-width:860px){
  .navlinks{display:none}
  .menu-btn{display:inline-flex}
  .side{display:none}
  .main{padding:18px 16px 96px}
  .tabbar{display:flex;position:fixed;left:0;right:0;bottom:0;z-index:40;background:rgba(255,255,255,.96);backdrop-filter:blur(10px);border-top:1px solid var(--border);padding:6px 4px calc(6px + env(safe-area-inset-bottom))}
  .tabbar a{flex:1;display:flex;flex-direction:column;align-items:center;gap:2px;font-size:11px;color:var(--muted);padding:4px 0}
  .tabbar a.on{color:var(--primary)}
  .tabbar svg.i{width:21px;height:21px}
  .subcard,.more-body{grid-template-columns:minmax(0,1fr)}
  .qr{justify-self:center}
  .sub-exp{margin-left:0;width:100%}
  .cols{grid-template-columns:minmax(0,1fr)}
  .admin .app{display:block}
  .admin-top{display:flex;gap:6px;overflow-x:auto;background:#111827;padding:10px 12px;position:sticky;top:0;z-index:30}
  .admin-top a{flex:none;color:#c3cad5;padding:6px 12px;border-radius:8px;font-size:13px}
  .admin-top a.on{background:var(--primary);color:#fff}
  .admin .main{padding:16px 14px 60px}
}
@media (max-width:560px){
  .topnav .in{padding:0 16px;gap:10px}
  .wrap{padding:0 16px}
  .hero{margin-top:14px;border-radius:24px;padding:36px 22px}
  .hero h1{font-size:32px}
  .hero-art{display:none}
  .section{padding-top:56px}
  .section-h h2{font-size:25px}
  .features{grid-template-columns:1fr}
  .pills{border-radius:16px}
  .pill{min-width:76px;padding:6px 10px}
  .sub-meta{grid-template-columns:1fr 1fr}
  .card{padding:16px}
  .kv{grid-template-columns:90px 1fr}
  .navright .btn-outline{display:none}
}

/* 投流落地页补充：信任条 / 三步 / FAQ */
.trust{display:flex;flex-wrap:wrap;justify-content:center;gap:10px 26px;margin:-6px auto 8px;padding:12px 16px;font-size:13.5px;color:var(--muted)}
.trust span{display:inline-flex;align-items:center;gap:6px}
.trust .i{width:16px;height:16px;color:var(--green)}
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.step{background:#fff;border:1px solid var(--border);border-radius:16px;padding:22px}
.step .n{display:inline-grid;place-items:center;width:30px;height:30px;border-radius:50%;background:var(--primary);color:#fff;font-weight:800;margin-bottom:10px}
.step h3{font-size:16px;margin-bottom:6px}
.step p{font-size:14px;color:var(--muted)}
.faq{max-width:760px;margin:0 auto}
.faq details{background:#fff;border:1px solid var(--border);border-radius:14px;padding:0 18px;margin-bottom:10px}
.faq summary{display:flex;justify-content:space-between;align-items:center;gap:10px;padding:16px 0;font-weight:700;cursor:pointer;list-style:none}
.faq summary::-webkit-details-marker{display:none}
.faq summary .i{width:16px;height:16px;color:var(--muted);transform:rotate(90deg);transition:transform .15s;flex:none}
.faq details[open] summary .i{transform:rotate(-90deg)}
.faq p{padding:0 0 16px;color:var(--muted);font-size:14.5px;line-height:1.7}
@media (max-width:760px){.steps{grid-template-columns:1fr}.trust{gap:8px 16px;font-size:12.5px}}
/* TG 防失联群整行引导（仪表盘卡片底部 / 支付成功页 / 首页 FAQ 底部） */
.tgrow{display:flex;align-items:center;gap:12px;margin-top:16px;padding:10px 12px;border:1px solid var(--border);border-radius:var(--radius);background:var(--primary-soft);color:var(--text);text-decoration:none;transition:border-color .15s}
.tgrow:hover{border-color:var(--primary);color:var(--text)}
.tgrow .ic{width:34px;height:34px;border-radius:50%;background:#fff;display:grid;place-items:center;color:var(--primary);flex-shrink:0}
.tgrow .tx{flex:1;min-width:0;display:flex;flex-direction:column;gap:2px;text-align:left}
.tgrow .tx b{font-size:14px}
.tgrow .tx span{font-size:12.5px;color:var(--muted)}
.tgrow>.i{color:var(--muted);flex-shrink:0}
.faq .tgrow{max-width:560px;margin:16px auto 0}
/* 邀请返佣入口条（仪表盘、个人设置） */
.invite-bar{display:flex;align-items:center;gap:12px;margin-top:16px;padding:12px 14px;border:1px solid var(--border);border-radius:var(--radius);background:var(--green-soft);color:var(--text);text-decoration:none;transition:border-color .15s}
.invite-bar:hover{border-color:var(--green)}
.invite-bar>.i:first-child{color:var(--green);flex-shrink:0}
.invite-bar span{flex:1;min-width:0;display:flex;flex-direction:column;gap:2px}
.invite-bar span b{font-size:14px}
.invite-bar>.i:last-child{color:var(--muted);flex-shrink:0}
.tiers{display:grid;grid-template-columns:repeat(auto-fit,minmax(0,1fr));gap:8px;margin-bottom:12px}
.tier{border:1px solid var(--border);border-radius:10px;padding:10px 6px;text-align:center;display:flex;flex-direction:column;gap:2px}
.tier b{font-size:18px}
.tier span{font-size:12px;color:var(--muted)}
.tier.on{border-color:var(--green);background:var(--green-soft)}
.tier.on b,.tier.on span{color:var(--green)}
.tier-bar{height:6px;border-radius:3px;background:var(--muted-bg);overflow:hidden;margin-bottom:8px}
.tier-bar i{display:block;height:100%;background:var(--green)}
.card+.stats{margin-top:16px}
@media (max-width:560px){.stats{gap:10px}.stat{padding:12px 14px}.stat b{font-size:20px;margin-top:2px}}
.invite-bar span i{font-style:normal;font-size:13px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.home-tiers{max-width:720px;margin:0 auto 20px}
.home-tiers .tier{padding:18px 8px;background:#fff}
.home-tiers .tier b{font-size:28px}
.home-tiers .tier span{font-size:13px}
@media (max-width:560px){.home-tiers .tier{padding:12px 4px}.home-tiers .tier b{font-size:22px}.home-tiers .tier span{font-size:11.5px}}
@media (max-width:760px){#invite .step{display:grid;grid-template-columns:30px 1fr;column-gap:12px;padding:14px 16px}#invite .step .n{grid-row:span 2;margin:0}#invite .steps{gap:10px}}
.invite-bar.top{margin:0 0 16px}

/* 官方客户端下载引导（2026-11-03） */
.appdl{background:linear-gradient(135deg,#eef5ff,#fff);border:1px solid #cfe2ff;border-radius:var(--radius-lg);padding:18px;margin:16px 0}
.appdl-h{display:flex;gap:12px;align-items:center;margin-bottom:14px}
.appdl-h .ic{width:40px;height:40px;border-radius:12px;background:var(--primary);color:#fff;display:grid;place-items:center;flex:none}
.appdl-h b{display:block;font-size:16px}.appdl-h span{font-size:13px;color:var(--muted)}
.appdl-list{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:10px}
.appdl-item{position:relative;display:flex;align-items:center;gap:10px;background:#fff;border:1px solid var(--border);border-radius:12px;padding:12px 14px;color:var(--text);transition:border-color .15s,transform .15s}
.appdl-item:hover{border-color:var(--primary);color:var(--text);transform:translateY(-1px)}
.appdl-item .i{color:var(--primary);flex:none}
.appdl-item b{display:block;font-size:14px}.appdl-item i{font-style:normal;font-size:12px;color:var(--muted)}
.appdl-item em{display:none;position:absolute;top:-8px;right:10px;font-style:normal;font-size:11px;background:var(--primary);color:#fff;border-radius:999px;padding:1px 8px}
.appdl-item.rec{border-color:var(--primary);box-shadow:0 0 0 3px #e3eeff}.appdl-item.rec em{display:block}
.appdl-tip{font-size:12px;color:var(--muted);margin:12px 0 0}
.appdl.compact{padding:14px;margin:12px 0}.appdl.compact .appdl-list{grid-template-columns:repeat(auto-fit,minmax(150px,1fr))}

/* 用户中心（2026-11-04 照 101 重做）：单列窄栏 */
.uc{max-width:620px;margin:0 auto;display:flex;flex-direction:column;gap:14px}
.uc>.flash{margin:0}
.uc-h h1{font-size:22px;font-weight:700;letter-spacing:-.2px}
.uc-card{background:var(--card);border:1px solid var(--border);border-radius:14px;padding:18px 20px}
.uc .btn-dark{background:#1b2430;color:#fff}.uc .btn-dark:hover{background:#2c394a;color:#fff}
.uc .btn-warn{background:var(--amber);color:#fff}.uc .btn-warn:hover{background:#8a4500;color:#fff}
.uc .btn-tall{height:44px}
.uc-acct{display:flex;align-items:center;justify-content:space-between;gap:12px 16px;flex-wrap:wrap}
.uc-acct .who{min-width:0}
.uc-acct .em{display:flex;align-items:center;gap:8px;font-weight:600;font-size:15px}
.uc-acct .em span:last-child{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.uc-acct .dot{width:8px;height:8px;border-radius:50%;flex:none;background:var(--green)}
.uc-acct .dot.soon{background:#e8a33a}.uc-acct .dot.expired,.uc-acct .dot.off{background:var(--red)}.uc-acct .dot.none{background:#a5afbb}
.uc-acct .exp{margin-top:3px;font-size:13px;color:var(--muted)}.uc-acct .exp.bad{color:var(--red)}
.uc-acct .btn{height:40px;padding:0 18px}
.uc-sec{margin-top:16px;padding-top:12px;border-top:1px solid var(--border)}
.uc-sec .lbl{font-size:12px;color:var(--muted);margin-bottom:6px}
.uc-link{display:flex;gap:8px;align-items:center}
.uc-link code{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;border:1px solid var(--border);background:var(--bg);border-radius:8px;padding:8px 12px;font:12px ui-monospace,Menlo,monospace;color:var(--muted);user-select:all}
.uc-link .btn{height:36px}
.uc-mini{margin-top:6px;font-size:12px;color:var(--muted);line-height:1.6}
.uc-mini button{border:0;background:none;padding:0;font:inherit;color:inherit;text-decoration:underline;text-underline-offset:2px;cursor:pointer}
.uc-mini button:hover{color:var(--text)}
.uc-meta{display:flex;gap:16px;margin-top:10px;font-size:12.5px}
.uc-meta a{color:var(--muted);text-decoration:underline;text-underline-offset:2px}.uc-meta a:hover{color:var(--text)}
.uc .uc-sec .tgrow{margin:0;border:0;background:none;padding:4px 0}
.uc-ann{display:flex;align-items:center;gap:10px;padding:10px 14px;border-radius:12px;background:var(--amber-soft);border:1px solid #f3dcb8;color:var(--text)}
.uc-ann:hover{color:var(--text);border-color:#e9c48c}
.uc-ann>svg:first-child{color:var(--amber)}.uc-ann>svg:last-child{color:var(--muted);width:16px;height:16px}
.uc-ann span{flex:1;min-width:0;display:flex;gap:8px;align-items:baseline;font-size:13px}
.uc-ann b{flex:none;font-weight:600}.uc-ann i{font-style:normal;color:var(--muted);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.uc-ref{border-radius:14px;padding:16px 18px;color:#fff;background:linear-gradient(100deg,#1d7bd3,var(--hero));box-shadow:0 6px 18px rgba(21,101,173,.18)}
.uc-ref .top{display:flex;align-items:center;gap:12px}
.uc-ref .ic{width:40px;height:40px;border-radius:50%;background:rgba(255,255,255,.16);display:grid;place-items:center;flex:none}
.uc-ref b{display:block;font-size:14.5px;line-height:1.3}.uc-ref i{display:block;font-style:normal;font-size:12.5px;opacity:.86;margin-top:2px}
.uc-ref .acts{display:flex;gap:8px;margin-top:12px}
.uc-ref .btn{height:36px}
.uc-ref .btn-white{flex:1;background:#fff;color:var(--hero)}.uc-ref .btn-white:hover{background:#eef6fd;color:var(--hero)}
.uc-ref .btn-line{background:transparent;color:#fff;border-color:rgba(255,255,255,.55)}.uc-ref .btn-line:hover{background:rgba(255,255,255,.1);color:#fff}
.uc-tabs{display:grid;grid-template-columns:repeat(4,1fr);gap:4px;padding:4px;border-radius:10px;background:var(--muted-bg)}
.uc-tabs button{height:34px;border:0;border-radius:7px;background:none;font:inherit;font-size:13px;font-weight:500;color:var(--muted);cursor:pointer}
.uc-tabs button.on{background:#fff;color:var(--text);box-shadow:0 1px 3px rgba(16,24,40,.1)}
.uc-setup .pane{margin-top:18px;display:flex;flex-direction:column;gap:16px}
.uc-setup .pane[hidden]{display:none}
.uc-setup .grp{display:flex;flex-direction:column;gap:10px}
.uc-setup .grp+.grp{padding-top:16px;border-top:1px solid var(--border)}
.uc-setup .gt small{display:block;font-size:11px;letter-spacing:.06em;color:var(--muted)}
.uc-setup .gt b{display:block;margin-top:1px;font-size:15px}
.uc-setup .uc-mini{margin-top:0}
.uc-setup .two{display:grid;grid-template-columns:1fr 1fr;gap:8px}
.uc-qr{margin-top:16px;padding-top:12px;border-top:1px solid var(--border);font-size:13px}
.uc-qr summary{display:flex;align-items:center;gap:6px;cursor:pointer;color:var(--muted);list-style:none}
.uc-qr summary::-webkit-details-marker{display:none}
.uc-qr .body{display:flex;gap:16px;align-items:center;margin-top:12px;flex-wrap:wrap}
.uc-qr .qr svg{width:132px;height:132px;display:block}
.uc-qr .imports{display:flex;flex-wrap:wrap;gap:6px;flex:1;min-width:180px}
.uc-links{display:flex;flex-wrap:wrap;justify-content:center;gap:8px 20px;margin-top:6px;font-size:13px}
.uc-links a{color:var(--muted);text-decoration:underline;text-underline-offset:2px}.uc-links a:hover{color:var(--text)}
.uc-notice{font-size:12.5px;color:var(--muted);text-align:center}
.uc-notice summary{display:inline-flex;align-items:center;gap:4px;cursor:pointer;list-style:none}
.uc-notice summary::-webkit-details-marker{display:none}
.uc-notice summary svg{width:14px;height:14px;transform:rotate(90deg);transition:transform .15s}
.uc-notice[open] summary svg{transform:rotate(-90deg)}
.uc-notice ul{text-align:left;margin:8px 0 0;padding:12px 14px 12px 30px;background:var(--card);border:1px solid var(--border);border-radius:10px;line-height:1.8}
.uc-sites .hd{display:flex;justify-content:space-between;align-items:center}.uc-sites .hd a{font-size:12.5px;color:var(--muted)}
.uc-sites .chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:10px}
.uc-sites .chips a{display:inline-flex;align-items:center;gap:4px;padding:5px 12px;border-radius:999px;border:1px solid var(--border);background:var(--bg);font-size:12.5px;color:var(--text)}
.uc-sites .chips svg{width:12px;height:12px;color:var(--muted)}
@media (max-width:560px){.uc{gap:12px}.uc-card{padding:16px}.uc-acct .btn{width:100%}.uc-setup .two{grid-template-columns:1fr}.uc-ann i{display:none}}

/* 首页节点一览 */
.nodegrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:12px;max-width:900px;margin:0 auto}
.nodechip{display:flex;align-items:center;gap:10px;background:#fff;border:1px solid var(--border);border-radius:12px;padding:12px 14px;box-shadow:var(--shadow)}
.nodechip .flag{font-size:22px;line-height:1}
.nodechip b{font-size:14.5px;flex:1;min-width:0}
.nodechip .cnt{font-size:12.5px;color:var(--primary);background:var(--primary-soft);border-radius:99px;padding:1px 9px;white-space:nowrap}
.node-at{display:flex;align-items:center;justify-content:center;gap:7px;margin-top:16px;font-size:13px;color:var(--muted)}
.node-at .dot{width:8px;height:8px;border-radius:50%;background:var(--green);box-shadow:0 0 0 3px var(--green-soft)}
@media (max-width:560px){.nodegrid{grid-template-columns:repeat(2,1fr);gap:10px}.nodechip{padding:10px 12px}}

/* 博客 / 教程 */
.postgrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:16px}
.postcard{display:flex;flex-direction:column;gap:8px;background:#fff;border:1px solid var(--border);border-radius:var(--radius-lg);padding:20px;color:var(--text);box-shadow:var(--shadow);transition:border-color .15s,transform .15s}
.postcard:hover{border-color:var(--ring);color:var(--text);transform:translateY(-2px)}
.postcard h2,.postcard h3{font-size:16.5px;font-weight:700;line-height:1.4}
.postcard p{color:var(--muted);font-size:13.5px;line-height:1.65;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.postcard .pdate{margin-top:auto;font-size:12px;color:var(--muted)}
.ptag{align-self:flex-start;display:inline-block;padding:2px 9px;border-radius:6px;background:var(--primary-soft);color:var(--primary);font-size:12px;font-weight:600}
.crumbs{display:flex;flex-wrap:wrap;gap:6px;margin:24px 0 0;font-size:13px;color:var(--muted)}
.crumbs a{color:var(--muted)}.crumbs a:hover{color:var(--primary)}
.blog-h{margin:18px 0 26px}.blog-h h1{font-size:30px;font-weight:800}.blog-h p{margin-top:8px}
.post{max-width:780px;margin:18px auto 0;background:#fff;border:1px solid var(--border);border-radius:var(--radius-lg);padding:36px 40px;box-shadow:var(--shadow)}
.post header h1{font-size:28px;font-weight:800;line-height:1.35;margin:12px 0 8px}
.post-body{margin-top:24px;font-size:15.5px;line-height:1.85}
.post-body p,.post-body ul,.post-body ol,.post-body table,.post-body pre,.post-body .tip{margin:0 0 16px}
.post-body h2{font-size:21px;font-weight:800;margin:34px 0 14px;padding-top:6px}
.post-body h3{font-size:17px;font-weight:700;margin:24px 0 10px}
.post-body ul,.post-body ol{padding-left:22px}.post-body li{margin:6px 0}
.post-body table{width:100%;border-collapse:collapse;font-size:14px;display:block;overflow-x:auto}
.post-body th,.post-body td{border:1px solid var(--border);padding:9px 12px;text-align:left;vertical-align:top}
.post-body th{background:var(--muted-bg);font-weight:700;white-space:nowrap}
.post-body code,.post-body pre{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:13px;background:var(--muted-bg);border-radius:6px}
.post-body code{padding:1px 6px}.post-body pre{padding:12px 14px;overflow-x:auto;white-space:pre-wrap;word-break:break-all}
.post-body .tip{padding:12px 14px;border-radius:10px;background:var(--amber-soft);color:#6b3a00;font-size:14.5px}
.post-body .big{font-size:17px;font-weight:700;color:var(--primary)}
.post-body a{text-decoration:underline;text-underline-offset:3px}
.post-faq{margin-top:34px}.post-faq h2{font-size:21px;font-weight:800;margin-bottom:14px}
.post-cta{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;margin:30px 0 16px;padding:20px 22px;border-radius:14px;background:var(--hero);color:#fff}
.post-cta b{font-size:17px}.post-cta p{margin-top:4px;color:rgba(255,255,255,.85);font-size:13.5px}
.post-cta .btn{background:#fff;color:var(--hero)}.post-cta .btn:hover{background:#eef5fc;color:var(--hero)}
.post-related{max-width:1200px;margin:40px auto 0}.post-related h2{font-size:21px;font-weight:800;margin-bottom:16px}
@media (max-width:640px){
  .post{padding:22px 16px;border-radius:12px;margin-top:12px}
  .post header h1{font-size:22px}.post-body{font-size:15px}
  .blog-h h1{font-size:24px}.postgrid{grid-template-columns:1fr}
}