/* ================= tlsfoward 计费平台 · 深色科技风 ================= */
:root{
  --bg:#0a0e1a; --bg2:#070b14;
  --panel:#0f1626; --panel2:#121a2e; --panel3:#0d1422;
  --border:#1e2a44; --border2:#26365a;
  --text:#c9d4e8; --text2:#9fb0cc; --muted:#6b7a99; --text-strong:#ffffff;
  --cyan:#22d3ee; --purple:#8b5cf6; --pink:#e879f9;
  --green:#34d399; --red:#f87171; --amber:#fbbf24;
  --grad:linear-gradient(135deg,#22d3ee 0%,#8b5cf6 100%);
  --grad-soft:linear-gradient(135deg,rgba(34,211,238,.16),rgba(139,92,246,.16));
  --radius:14px; --shadow:0 10px 30px rgba(0,0,0,.35);
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  background:
    radial-gradient(1100px 600px at 80% -10%,rgba(139,92,246,.14),transparent 60%),
    radial-gradient(900px 500px at -10% 10%,rgba(34,211,238,.12),transparent 55%),
    var(--bg);
  color:var(--text);
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",Roboto,Arial,sans-serif;
  font-size:15px; line-height:1.65; min-height:100vh;
}
a{color:var(--cyan);text-decoration:none}
a:hover{color:#67e8f9}
.mono{font-family:ui-monospace,"SFMono-Regular",Menlo,Consolas,"Courier New",monospace}
.muted{color:var(--muted)}
.text2{color:var(--text2)}
hr{border:0;border-top:1px solid var(--border);margin:24px 0}

/* ---------- 导航 ---------- */
.nav{position:sticky;top:0;z-index:50;background:rgba(8,12,22,.82);backdrop-filter:blur(12px);border-bottom:1px solid var(--border)}
.nav-inner{max-width:1180px;margin:0 auto;padding:0 22px;height:62px;display:flex;align-items:center;gap:24px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-ico{width:38px;height:38px;border-radius:9px;object-fit:cover;box-shadow:0 0 16px rgba(34,211,238,.25)}
.logo{font-weight:800;font-size:28px;letter-spacing:.5px;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;text-shadow:0 0 24px rgba(34,211,238,.25)}
.brand-sub{font-size:12px;color:var(--muted);display:none}
@media(min-width:920px){.brand-sub{display:inline}}
.nav-links{display:flex;gap:4px;margin-left:6px;flex:1}
.nav-links a{color:var(--text2);padding:8px 12px;border-radius:9px;font-size:14px;transition:.15s}
.nav-links a:hover{color:var(--text-strong);background:rgba(255,255,255,.05)}
.nav-links a.on{color:var(--text-strong);background:var(--grad-soft);box-shadow:inset 0 0 0 1px var(--border2)}
.nav-right{display:flex;align-items:center;gap:10px}
.nav-user{font-size:13px;color:var(--text2)}
.badge{font-size:12px;color:var(--text2);background:var(--panel2);border:1px solid var(--border);padding:5px 10px;border-radius:20px}
.badge b{color:var(--cyan)}

/* ---------- 容器/主区 ---------- */
.main{max-width:1180px;margin:0 auto;padding:30px 22px 60px}
.container-narrow{max-width:460px;margin:0 auto}
.section{margin:54px 0}
.section h2{font-size:26px;margin:0 0 6px}
.section .sub{color:var(--muted);margin:0 0 26px}
.eyebrow{display:inline-block;font-size:12px;letter-spacing:2px;text-transform:uppercase;color:var(--cyan);background:var(--grad-soft);border:1px solid var(--border2);padding:5px 12px;border-radius:20px;margin-bottom:16px}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;cursor:pointer;border:1px solid transparent;border-radius:11px;padding:11px 20px;font-size:14px;font-weight:600;font-family:inherit;transition:.15s;white-space:nowrap}
.btn-sm{padding:7px 14px;font-size:13px;border-radius:9px}
.btn-lg{padding:14px 28px;font-size:15px}
.btn-primary{background:var(--grad);color:#06121a;box-shadow:0 6px 20px rgba(34,211,238,.25)}
.btn-primary:hover{filter:brightness(1.08);color:#06121a}
.btn-ghost{background:transparent;border-color:var(--border2);color:var(--text)}
.btn-ghost:hover{background:rgba(255,255,255,.06);color:var(--text-strong)}
.btn-soft{background:var(--panel2);border-color:var(--border);color:var(--text)}
.btn-soft:hover{border-color:var(--cyan);color:var(--text-strong)}
.btn-danger{background:transparent;border-color:rgba(248,113,113,.5);color:var(--red)}
.btn-danger:hover{background:rgba(248,113,113,.12)}
.btn[disabled]{opacity:.5;cursor:not-allowed}
.btn-block{display:flex;width:100%}

/* ---------- 卡片 ---------- */
.card{background:linear-gradient(180deg,var(--panel),var(--panel3));border:1px solid var(--border);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow)}
.card-pad-lg{padding:28px}
.grid{display:grid;gap:18px}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}
@media(max-width:900px){.grid-2,.grid-3,.grid-4{grid-template-columns:1fr}}

/* ---------- 统计卡 ---------- */
.stat{background:linear-gradient(180deg,var(--panel),var(--panel3));border:1px solid var(--border);border-radius:var(--radius);padding:20px;position:relative;overflow:hidden}
.stat::after{content:"";position:absolute;right:-30px;top:-30px;width:120px;height:120px;background:var(--grad-soft);filter:blur(30px);opacity:.6}
.stat .k{font-size:12px;color:var(--muted);letter-spacing:.5px}
.stat .v{font-size:30px;font-weight:800;margin-top:6px;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.stat .v.plain{background:none;color:var(--text);-webkit-text-fill-color:var(--text)}
.stat .foot{font-size:12px;color:var(--text2);margin-top:6px}

/* ---------- Hero ---------- */
.hero{display:grid;grid-template-columns:1.05fr .95fr;gap:40px;align-items:center;padding:40px 0 10px}
@media(max-width:900px){.hero{grid-template-columns:1fr}}
.hero h1{font-size:44px;line-height:1.15;margin:14px 0 18px;font-weight:800}
.hero h1 .g{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero p.lead{font-size:17px;color:var(--text2);margin:0 0 26px;max-width:560px}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap}
.hero-stats{display:flex;gap:28px;margin-top:34px;flex-wrap:wrap}
.hero-stats .hs b{display:block;font-size:24px;color:var(--text-strong)}
.hero-stats .hs span{font-size:12px;color:var(--muted)}
.hero-visual{position:relative}
.hero-visual img{width:100%;border-radius:var(--radius);border:1px solid var(--border2);box-shadow:0 20px 60px rgba(0,0,0,.5)}
.hero-visual .float{position:absolute;bottom:-18px;left:-18px;width:46%;border-radius:10px;border:1px solid var(--border2);box-shadow:0 16px 40px rgba(0,0,0,.55)}
@media(max-width:560px){.hero-visual .float{display:none}}

/* ---------- 产品展示 ---------- */
.shot{border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;background:var(--panel3)}
.shot img{width:100%;display:block}
.shot .cap{padding:14px 18px;border-top:1px solid var(--border)}
.shot .cap b{display:block}
.shot .cap span{font-size:13px;color:var(--muted)}

/* ---------- 功能 ---------- */
.feature{padding:22px}
.feature .ico{width:42px;height:42px;border-radius:11px;display:flex;align-items:center;justify-content:center;font-size:20px;background:var(--grad-soft);border:1px solid var(--border2);margin-bottom:14px}
.feature h3{margin:0 0 6px;font-size:17px}
.feature p{margin:0;color:var(--text2);font-size:14px}

/* ---------- 步骤 ---------- */
.steps{counter-reset:s}
.step{display:flex;gap:16px;padding:16px 0;border-bottom:1px dashed var(--border)}
.step:last-child{border-bottom:0}
.step .n{counter-increment:s;flex-shrink:0;width:34px;height:34px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:700;background:var(--grad);color:#06121a}
.step .n::before{content:counter(s)}
.step h4{margin:4px 0 4px}
.step p{margin:0;color:var(--text2);font-size:14px}

/* ---------- 价格 ---------- */
.price{position:relative;display:flex;flex-direction:column;text-align:center}
.price.featured{border-color:var(--cyan);box-shadow:0 0 0 1px var(--cyan),0 16px 40px rgba(34,211,238,.16)}
.price .pname{font-size:15px;color:var(--text2)}
.price .pamt{font-size:34px;font-weight:800;margin:8px 0}
.price .pamt small{font-size:14px;color:var(--muted);font-weight:500}
.price .ptok{color:var(--cyan);font-weight:700;margin-bottom:4px}
.price .ptag{position:absolute;top:-11px;left:50%;transform:translateX(-50%);background:var(--grad);color:#06121a;font-size:12px;font-weight:700;padding:3px 12px;border-radius:20px}
.price ul{list-style:none;padding:0;margin:14px 0 18px;text-align:left;font-size:13px;color:var(--text2)}
.price ul li{padding:5px 0 5px 22px;position:relative}
.price ul li::before{content:"✓";position:absolute;left:0;color:var(--green)}

/* ---------- 表格 ---------- */
.table-wrap{overflow:auto;border:1px solid var(--border);border-radius:var(--radius)}
table.tbl{width:100%;border-collapse:collapse;font-size:13.5px}
table.tbl th,table.tbl td{padding:11px 14px;text-align:left;white-space:nowrap}
table.tbl thead th{background:var(--panel2);color:var(--text2);font-weight:600;font-size:12px;letter-spacing:.5px;border-bottom:1px solid var(--border)}
table.tbl tbody tr{border-bottom:1px solid rgba(30,42,68,.6)}
table.tbl tbody tr:hover{background:rgba(255,255,255,.02)}
table.tbl tbody tr:last-child{border-bottom:0}

/* ---------- 标签/状态 ---------- */
.pill{display:inline-block;font-size:12px;padding:3px 10px;border-radius:20px;border:1px solid var(--border2);background:var(--panel2)}
.pill-ok{color:var(--green);border-color:rgba(52,211,153,.4);background:rgba(52,211,153,.1)}
.pill-bad{color:var(--red);border-color:rgba(248,113,113,.4);background:rgba(248,113,113,.1)}
.pill-warn{color:var(--amber);border-color:rgba(251,191,36,.4);background:rgba(251,191,36,.1)}
.pill-cyan{color:var(--cyan);border-color:rgba(34,211,238,.4);background:rgba(34,211,238,.1)}
.pill-purple{color:var(--purple);border-color:rgba(139,92,246,.45);background:rgba(139,92,246,.12)}
.pill-free{color:#fff;font-weight:600;border-color:transparent;background:#5d6577}
.pill-vip{color:#fff;font-weight:600;border-color:transparent;background:linear-gradient(135deg,#f8b73a,#ef8a1b);box-shadow:0 2px 7px rgba(239,138,27,.32)}
.tok-plus{color:var(--green)}
.tok-minus{color:var(--red)}

/* ---------- 表单 ---------- */
.field{margin-bottom:16px}
.field label{display:block;font-size:13px;color:var(--text2);margin-bottom:7px}
.input,select.input,textarea.input{width:100%;background:var(--panel3);border:1px solid var(--border);color:var(--text);border-radius:10px;padding:12px 14px;font-size:14px;font-family:inherit;transition:.15s}
.input:focus{outline:none;border-color:var(--cyan);box-shadow:0 0 0 3px rgba(34,211,238,.15)}
.input::placeholder{color:#4d5b78}
.form-tip{font-size:12px;color:var(--muted);margin-top:6px}
.captcha-row{display:flex;gap:10px;align-items:stretch}
.captcha-row .input{flex:1}
.captcha-img{height:46px;width:130px;border-radius:10px;border:1px solid var(--border);cursor:pointer;flex-shrink:0;object-fit:cover}
/* ============ 滑块拼图验证码 ============ */
.slider-captcha{user-select:none;-webkit-user-select:none}
.sc-imgwrap{position:relative;width:280px;max-width:100%;height:150px;border-radius:10px;overflow:hidden;border:1px solid var(--border);background:var(--panel3)}
.sc-bg{display:block;width:280px;height:150px}
.sc-piece{position:absolute;top:0;left:0;width:42px;height:42px;filter:drop-shadow(0 2px 5px rgba(0,0,0,.45));pointer-events:none}
.sc-tip{position:absolute;left:0;bottom:0;width:100%;text-align:center;font-size:12px;color:#fff;background:rgba(0,0,0,.4);padding:4px 0}
.sc-refresh{position:absolute;right:6px;top:6px;width:26px;height:26px;border-radius:6px;background:rgba(0,0,0,.45);color:#fff;display:flex;align-items:center;justify-content:center;cursor:pointer;font-size:15px;z-index:3}
.sc-refresh:hover{background:rgba(0,0,0,.65)}
.sc-track{position:relative;margin-top:12px;width:280px;max-width:100%;height:40px;border-radius:8px;background:var(--panel2);border:1px solid var(--border);overflow:hidden}
.sc-fill{position:absolute;left:0;top:0;height:100%;width:0;background:rgba(34,211,238,.22)}
.sc-track-text{position:absolute;width:100%;text-align:center;line-height:40px;font-size:13px;color:var(--muted);pointer-events:none}
.sc-handle{position:absolute;left:0;top:0;width:40px;height:40px;border-radius:8px;background:var(--grad);color:#06121a;display:flex;align-items:center;justify-content:center;cursor:grab;font-weight:800;font-size:18px;z-index:2;box-shadow:0 2px 8px rgba(0,0,0,.3);touch-action:none}
.sc-handle.active{cursor:grabbing}
.slider-captcha.ok .sc-track{border-color:var(--green)}
.slider-captcha.ok .sc-fill{background:rgba(52,211,153,.25)}
.slider-captcha.ok .sc-handle{background:var(--green)}
.slider-captcha.ok .sc-track-text{color:var(--green)}
.slider-captcha.fail .sc-track{border-color:var(--red)}
.slider-captcha.fail .sc-handle{background:var(--red);color:#fff}
/* ============ 图片灯箱(点击放大) ============ */
.zoomable{cursor:zoom-in;transition:filter .15s}
.zoomable:hover{filter:brightness(1.06)}
/* 首页随主题切换的图片：暗色(夜间)用 b*，亮色用 c*（!important 压过 .shot img 的 display） */
.img-light{display:none!important}
[data-theme="light"] .img-dark{display:none!important}
[data-theme="light"] .img-light{display:block!important}
.lightbox{position:fixed;inset:0;z-index:200;background:rgba(3,6,12,.9);display:none;align-items:center;justify-content:center;padding:28px;cursor:zoom-out}
.lightbox.show{display:flex}
.lightbox img{max-width:96vw;max-height:92vh;border-radius:10px;border:1px solid var(--border2);box-shadow:0 24px 70px rgba(0,0,0,.6);cursor:default;animation:lbin .2s ease}
.lb-close{position:absolute;top:16px;right:22px;width:40px;height:40px;border-radius:10px;background:rgba(255,255,255,.12);color:#fff;border:1px solid rgba(255,255,255,.22);font-size:18px;cursor:pointer;display:flex;align-items:center;justify-content:center}
.lb-close:hover{background:rgba(255,255,255,.22)}
@keyframes lbin{from{opacity:0;transform:scale(.96)}to{opacity:1;transform:scale(1)}}
/* ============ 系统公告弹窗 ============ */
.announce{position:fixed;inset:0;z-index:150;background:rgba(3,6,12,.72);display:none;align-items:center;justify-content:center;padding:24px}
.announce-box{width:720px;max-width:100%;max-height:88vh;display:flex;flex-direction:column;background:#0f1626;border:1px solid #26365a;border-radius:16px;box-shadow:0 30px 80px rgba(0,0,0,.6);overflow:hidden;animation:lbin .22s ease}
.announce-head{display:flex;align-items:center;justify-content:space-between;padding:15px 20px;border-bottom:1px solid #1e2a44}
.announce-tag{font-weight:800;font-size:16px;background:linear-gradient(135deg,#22d3ee,#8b5cf6);-webkit-background-clip:text;background-clip:text;color:transparent}
.announce-x{background:none;border:0;color:#6b7a99;font-size:20px;cursor:pointer;width:32px;height:32px;border-radius:8px;line-height:1}
.announce-x:hover{background:rgba(255,255,255,.08);color:#fff}
.announce-body{padding:24px;overflow:auto;background:#fff;color:#1c2433}
.announce-title{margin:0 0 12px;font-size:24px;color:#0d1424;font-weight:800}
.announce-content{font-size:15px;line-height:1.75;color:#36425b;word-break:break-word}
.announce-content h1,.announce-content h2,.announce-content h3,.announce-content h4{color:#0d1424;margin:16px 0 8px}
.announce-content p{margin:10px 0}
.announce-content a{color:#0e7fa3}
.announce-content ul,.announce-content ol{padding-left:22px}
.announce-content img{max-width:100%;border-radius:8px}
.announce-content pre{background:#0b1120;color:#cbd5e1;border-radius:10px;padding:14px;overflow:auto;font-size:13px}
.announce-content code{background:#eef1f7;color:#0e7fa3;padding:2px 6px;border-radius:5px;font-size:13px}
.announce-content pre code{background:none;color:inherit;padding:0}
.announce-foot{display:flex;justify-content:flex-end;gap:10px;padding:14px 20px;border-top:1px solid #1e2a44}
.btn-today{background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.2);color:#dbe4f3}
.btn-today:hover{background:rgba(255,255,255,.18);color:#fff}
@media(max-width:600px){.announce-body{padding:18px}.announce-title{font-size:20px}.announce-foot{padding:12px 16px}}

/* ---------- 提示条 ---------- */
.alert{padding:12px 16px;border-radius:11px;font-size:14px;margin-bottom:18px;border:1px solid}
.alert-info{background:rgba(34,211,238,.08);border-color:rgba(34,211,238,.3);color:#a5f3fc}
.alert-success{background:rgba(52,211,153,.08);border-color:rgba(52,211,153,.3);color:#a7f3d0}
.alert-error{background:rgba(248,113,113,.08);border-color:rgba(248,113,113,.3);color:#fecaca}
.alert-warn{background:rgba(251,191,36,.08);border-color:rgba(251,191,36,.3);color:#fde68a}

/* ---------- API Key 框 ---------- */
.keybox{display:flex;align-items:center;gap:10px;background:var(--panel3);border:1px dashed var(--border2);border-radius:10px;padding:12px 14px}
.keybox code{flex:1;color:var(--cyan);font-size:14px;word-break:break-all}

/* ---------- 代码块 ---------- */
pre.code{background:#0b1120;border:1px solid var(--border);border-radius:12px;padding:16px 18px;overflow:auto;font-size:13px;line-height:1.7;color:#cbd5e1}
pre.code .c{color:#5b6b8c}
pre.code .s{color:#7ee787}
pre.code .k{color:var(--pink)}
.kvs{font-size:13.5px}
.kvs .row{display:flex;gap:12px;padding:8px 0;border-bottom:1px solid var(--border)}
.kvs .row:last-child{border:0}
.kvs .key{width:130px;color:var(--muted);flex-shrink:0}
.kvs .val{color:var(--text)}

/* ---------- 杂项 ---------- */
.flex{display:flex}.between{justify-content:space-between}.center{align-items:center}.wrap{flex-wrap:wrap}.gap{gap:12px}.gap-lg{gap:20px}
.mt0{margin-top:0}.mb0{margin-bottom:0}.mt8{margin-top:8px}.mt16{margin-top:16px}.mt24{margin-top:24px}
.right{text-align:right}.tcenter{text-align:center}
.page-head{display:flex;justify-content:space-between;align-items:flex-end;flex-wrap:wrap;gap:14px;margin-bottom:24px}
.page-head h1{font-size:26px;margin:0}
.divider{height:1px;background:var(--border);margin:22px 0}
.chart-box{position:relative;height:300px}
/* ============ 数据分析面板(多标签) ============ */
.ana-head{display:flex;justify-content:space-between;align-items:center;gap:14px;flex-wrap:wrap;padding-bottom:13px;border-bottom:1px solid var(--border);margin-bottom:16px}
.ana-title{display:flex;align-items:center;gap:8px;font-weight:700;font-size:16px}
.ana-title svg{color:var(--cyan)}
.ana-tabs{display:flex;align-items:center;gap:2px;flex-wrap:wrap;font-size:14px}
.ana-tab{cursor:pointer;color:var(--muted);padding:4px 9px;border-radius:7px;transition:.15s;white-space:nowrap}
.ana-tab:hover{color:var(--text)}
.ana-tab.on{color:var(--text);font-weight:700}
.ana-sep{color:var(--border2);user-select:none}
.ana-toolbar{display:flex;justify-content:flex-end;gap:6px;margin-bottom:10px}
@media(max-width:600px){.ana-tabs{font-size:12.5px}.ana-tab{padding:4px 6px}.ana-title{font-size:15px}}
.copy-toast{position:fixed;bottom:26px;left:50%;transform:translateX(-50%);background:var(--green);color:#06121a;padding:10px 22px;border-radius:24px;font-weight:600;font-size:14px;opacity:0;transition:.25s;pointer-events:none;z-index:99}
.copy-toast.show{opacity:1}

/* ---------- 页脚 ---------- */
.footer{border-top:1px solid var(--border);margin-top:40px}
.footer-inner{max-width:1180px;margin:0 auto;padding:24px 22px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;color:var(--muted);font-size:13px}

/* ================= 响应式网格(替代内联) ================= */
.grid-pricing{display:grid;gap:18px;grid-template-columns:repeat(auto-fit,minmax(186px,1fr))}
.grid-charts{display:grid;gap:18px;grid-template-columns:1.6fr 1fr}
.grid-docs{display:grid;gap:26px;grid-template-columns:230px 1fr}
.grid-auto-dl{display:grid;gap:18px;grid-template-columns:repeat(auto-fit,minmax(260px,320px));justify-content:center}
@media(max-width:860px){.grid-charts{grid-template-columns:1fr}.grid-docs{grid-template-columns:1fr}.grid-docs aside{position:static!important;top:auto!important}}

/* ================= 软件下载卡片 ================= */
.dlcard{text-align:center;display:flex;flex-direction:column;background:linear-gradient(165deg,rgba(34,211,238,.12),rgba(139,92,246,.08));border-color:rgba(34,211,238,.4);box-shadow:0 10px 34px rgba(34,211,238,.14)}
.dl-ico{font-size:40px;margin-bottom:6px}
.dl-name{font-weight:600;word-break:break-all;margin-bottom:8px}
.dl-meta{display:flex;gap:8px;justify-content:center;align-items:center;flex-wrap:wrap;margin-bottom:2px}

/* ================= 主题切换按钮 ================= */
.theme-toggle{display:inline-flex;align-items:center;justify-content:center;width:38px;height:38px;border-radius:9px;background:var(--panel2);border:1px solid var(--border2);color:var(--text2);cursor:pointer;flex-shrink:0;transition:.15s}
.theme-toggle:hover{color:var(--cyan);border-color:var(--cyan)}
.theme-toggle svg{display:block}
.ic-sun{display:none}
html[data-theme="light"] .ic-moon{display:none}
html[data-theme="light"] .ic-sun{display:inline}

/* ================= 客服悬浮按钮 ================= */
.cs-fab{position:fixed;right:22px;bottom:24px;z-index:60;display:inline-flex;align-items:center;gap:8px;padding:11px 18px;border-radius:30px;background:var(--grad);color:#06121a;font-weight:700;font-size:14px;box-shadow:0 8px 24px rgba(34,211,238,.32);transition:.18s;text-decoration:none}
.cs-fab:hover{filter:brightness(1.08);transform:translateY(-2px);color:#06121a}
.cs-fab svg{display:block}
@media(max-width:600px){.cs-fab{right:14px;bottom:16px;padding:10px 14px;font-size:13px}}

/* ================= 移动端导航(汉堡) ================= */
.nav-toggle{display:none;background:var(--panel2);border:1px solid var(--border2);color:var(--text);font-size:19px;line-height:1;border-radius:9px;width:42px;height:38px;cursor:pointer}
@media(max-width:860px){
  .nav-inner{flex-wrap:wrap;height:auto;min-height:58px;padding-top:10px;padding-bottom:10px;gap:10px}
  .brand{order:1}
  .theme-toggle{order:2;margin-left:auto}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center;order:3}
  .nav-links{order:4;flex-basis:100%;display:none;flex-direction:column;gap:2px;margin-left:0}
  .nav-right{order:5;flex-basis:100%;display:none;flex-direction:column;align-items:stretch;gap:8px;padding-top:10px;border-top:1px solid var(--border)}
  body.nav-open .nav-links{display:flex}
  body.nav-open .nav-right{display:flex}
  .nav-links a{padding:11px 12px;border-radius:8px;font-size:15px}
  .nav-right .btn{width:100%}
  .nav-right .badge,.nav-right .nav-user{text-align:center;display:block}
}

/* ================= 移动端排版 ================= */
@media(max-width:600px){
  body{font-size:14.5px}
  .main{padding:20px 14px 48px}
  .section{margin:38px 0}
  .section h2{font-size:21px}
  .hero{padding:18px 0 6px;gap:24px}
  .hero h1{font-size:29px}
  .hero p.lead{font-size:15px}
  .hero-cta .btn{width:100%}
  .hero-stats{gap:18px}
  .page-head h1{font-size:21px}
  .stat .v{font-size:25px}
  .card{padding:18px}
  .card-pad-lg{padding:20px}
  .btn-lg{padding:13px 18px;font-size:15px}
  .keybox{flex-wrap:wrap}
  .keybox code{flex-basis:100%;margin-bottom:8px}
  pre.code{font-size:12px}
  .footer-inner{flex-direction:column;text-align:center}
}

/* ================= 日间(浅色)模式 ================= */
html[data-theme="light"]{
  --bg:#eef1f7;--bg2:#e6eaf2;
  --panel:#ffffff;--panel2:#f4f7fb;--panel3:#fbfcfe;
  --border:#e3e8f1;--border2:#d3dae7;
  --text:#1c2433;--text2:#45526b;--muted:#8893a6;--text-strong:#10192a;
  --cyan:#0e93b8;--purple:#7a4dff;--pink:#c026d3;
  --green:#0a9d6e;--red:#e0524d;--amber:#cc8500;
  --grad:linear-gradient(135deg,#0891b2 0%,#7c3aed 100%);
  --grad-soft:linear-gradient(135deg,rgba(8,145,178,.10),rgba(124,58,237,.10));
  --shadow:0 8px 24px rgba(30,42,70,.08);
}
html[data-theme="light"] body{
  background:
    radial-gradient(1100px 600px at 80% -10%,rgba(124,77,255,.07),transparent 60%),
    radial-gradient(900px 500px at -10% 10%,rgba(8,150,185,.07),transparent 55%),
    var(--bg);
}
html[data-theme="light"] .nav{background:rgba(255,255,255,.86)}
html[data-theme="light"] .card,html[data-theme="light"] .stat{background:#ffffff}
html[data-theme="light"] table.tbl thead th{background:#f4f7fb}
html[data-theme="light"] table.tbl tbody tr:hover{background:#f8fafd}
html[data-theme="light"] .input,html[data-theme="light"] .keybox,html[data-theme="light"] .badge{background:#f7f9fc}
html[data-theme="light"] .input:focus{background:#fff}
html[data-theme="light"] pre.code{background:#f5f8fc;color:#26324a;border-color:var(--border)}
html[data-theme="light"] pre.code .c{color:#8893a6}
html[data-theme="light"] pre.code .s{color:#0a7d4f}
html[data-theme="light"] pre.code .k{color:#b5179e}
html[data-theme="light"] .alert-info{color:#0c6a82}
html[data-theme="light"] .alert-success{color:#0a7d4f}
html[data-theme="light"] .alert-error{color:#c0322e}
html[data-theme="light"] .alert-warn{color:#9a6a00}
html[data-theme="light"] .hero-visual img,html[data-theme="light"] .shot img{border-color:var(--border2)}
html[data-theme="light"] .input::placeholder{color:#aab4c4}
html[data-theme="light"] .nav-links a:hover{background:rgba(15,22,38,.05)}
html[data-theme="light"] .btn-ghost:hover{background:rgba(15,22,38,.05)}
html[data-theme="light"] .btn-soft:hover{background:#eef2f8}