/* Xunai 站点样式 — 无外部依赖，纯静态 */
:root{
  /* ---- 默认：白色主题 ---- */
  --bg:#ffffff; --bg2:#f6f8fc; --panel:#ffffff; --panel2:#f3f6fb;
  --line:#e4e9f2; --line2:#cdd7e5;
  --txt:#1b2434; --strong:#0b1220; --dim:#55637a; --dim2:#8593a8;
  --body-txt:#3c495e; --lead-txt:#26344a; --td-txt:#3c495e;
  --header-bg:rgba(255,255,255,.88); --nav-hover-bg:rgba(59,108,245,.075);
  --code-bg:#f6f8fc; --code-txt:#33415a;
  --syn-c:#98a6bb; --syn-k:#8b3fb8; --syn-s:#2b7a35; --syn-f:#2a4fc4;
  --crumb-sep:#c3cddb;
  --badge-txt:#3355c8; --step-txt:#3355c8;
  --note-txt:#8a6416; --note-info-txt:#2f4f9e; --note-warn-txt:#a83a3a;
  --tag-g-txt:#0a7a58; --tag-b-txt:#2a4fc4; --tag-a-txt:#8a6412; --tag-r-txt:#b03030;
  --hero-glow:radial-gradient(ellipse,rgba(79,124,255,.13),rgba(139,92,246,.06) 40%,transparent 68%);
  --card-shadow:0 1px 2px rgba(16,24,40,.04),0 2px 8px rgba(16,24,40,.04);
  --blue:#3b6cf5; --purple:#7c4dff; --cyan:#0a93ac;
  --green:#0f9e6e; --amber:#c8860a; --red:#d64545;
  --radius:8px;
}

/* ---- 米黄护眼 ---- */
html[data-theme="warm"]{
  --bg:#fbf7ee; --bg2:#f7f1e3; --panel:#fffdf8; --panel2:#f5eee0;
  --line:#e9e0cb; --line2:#d6c8a8;
  --txt:#2a2419; --strong:#1a1509; --dim:#6b6146; --dim2:#9a8f74;
  --body-txt:#4a4230; --lead-txt:#2f2a1c; --td-txt:#4a4230;
  --header-bg:rgba(251,247,238,.9);
  --code-bg:#f5eee0; --code-txt:#4a4230;
  --syn-c:#a99d80; --syn-k:#8b3fb8; --syn-s:#2b7a35; --syn-f:#2a4fc4;
  --crumb-sep:#ccc0a4;
  --card-shadow:0 1px 2px rgba(90,72,40,.05),0 2px 8px rgba(90,72,40,.05);
}

/* ---- 淡蓝 ---- */
html[data-theme="blue"]{
  --bg:#f2f7fd; --bg2:#e9f1fa; --panel:#ffffff; --panel2:#e8f0fa;
  --line:#d9e5f3; --line2:#bdd2e8;
  --txt:#16233a; --strong:#0a1526; --dim:#516178; --dim2:#8496ad;
  --body-txt:#37475e; --lead-txt:#22314a; --td-txt:#37475e;
  --header-bg:rgba(242,247,253,.9);
  --code-bg:#eef4fb; --code-txt:#33415a;
  --crumb-sep:#bed0e2;
}

/* ---- 深色 ---- */
html[data-theme="dark"]{
  --bg:#080b11; --bg2:#0d1219; --panel:#111823; --panel2:#151d2a;
  --line:#1e2836; --line2:#2a3648;
  --txt:#e3eaf5; --strong:#ffffff; --dim:#8c9bb0; --dim2:#5c6a7d;
  --body-txt:#b9c6d8; --lead-txt:#d5dfec; --td-txt:#c8d4e4;
  --header-bg:rgba(8,11,17,.88); --nav-hover-bg:rgba(79,124,255,.18);
  --code-bg:#05070b; --code-txt:#c3d0e2;
  --syn-c:#4d5c70; --syn-k:#c792ea; --syn-s:#a5e844; --syn-f:#6f9bff;
  --crumb-sep:#33404f;
  --badge-txt:#9db4ff; --step-txt:#93b4ff;
  --note-txt:#d8c9a8; --note-info-txt:#a9c0e8; --note-warn-txt:#e8b0b0;
  --tag-g-txt:#6ee7b7; --tag-b-txt:#93b4ff; --tag-a-txt:#fcd34d; --tag-r-txt:#fca5a5;
  --hero-glow:radial-gradient(ellipse,rgba(79,124,255,.16),rgba(139,92,246,.07) 40%,transparent 68%);
  --card-shadow:none;
  --blue:#4f7cff; --purple:#8b5cf6; --cyan:#22d3ee;
  --green:#34d399; --amber:#fbbf24; --red:#f87171;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  background:var(--bg);color:var(--txt);
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  font-size:15px;line-height:1.75;-webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
a{color:var(--blue);text-decoration:none}
a:hover{color:var(--cyan)}
img{max-width:100%}
.wrap{max-width:1120px;margin:0 auto;padding:0 24px}
.narrow{max-width:820px;margin:0 auto;padding:0 24px}

/* ---------- 顶部导航 ---------- */
header{
  position:sticky;top:0;z-index:100;
  background:var(--header-bg);backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.nav{display:flex;align-items:center;gap:28px;height:62px}
.logo{display:flex;align-items:center;gap:9px;font-weight:700;font-size:17px;color:var(--strong);letter-spacing:-.2px;flex:none}
.logo .dot{
  width:26px;height:26px;border-radius:7px;flex:none;
  background:linear-gradient(135deg,var(--blue),var(--purple));
  display:flex;align-items:center;justify-content:center;
  font-size:13px;font-weight:800;color:#fff;
}
.nav-links{display:flex;gap:4px;margin-left:-2px;flex:1}
.nav-links a{
  position:relative;color:var(--txt);font-size:14px;font-weight:500;
  padding:7px 10px;border-radius:7px;
  transition:color .18s ease,background-color .18s ease,opacity .12s ease;
}
.nav-links a::after{
  content:"";position:absolute;left:10px;right:10px;bottom:2px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--blue),var(--purple));
  transform:scaleX(0);transform-origin:left center;
  transition:transform .26s cubic-bezier(.34,.9,.35,1);
}
@media(hover:hover){
  .nav-links a:hover{color:var(--blue);background:var(--nav-hover-bg)}
  .nav-links a:hover::after{transform:scaleX(1)}
}
.nav-links a.on{color:var(--strong);font-weight:600}
.nav-links a.on::after{transform:scaleX(1);background:var(--strong);opacity:.8}
.nav-links a:active{opacity:.72}
@media(prefers-reduced-motion:reduce){
  .nav-links a,.nav-links a::after{transition:none}
}
.nav-cta{display:flex;gap:10px;flex:none}
@media(max-width:820px){
  .nav-links{display:none}
  .nav{justify-content:space-between}
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:7px;
  padding:10px 20px;border-radius:7px;font-size:14px;font-weight:600;
  border:1px solid transparent;cursor:pointer;transition:all .18s;white-space:nowrap;
}
.btn-p{background:linear-gradient(135deg,var(--blue),var(--purple));color:#fff}
.btn-p:hover{color:#fff;filter:brightness(1.12);transform:translateY(-1px)}
.btn-g{border-color:var(--line2);color:var(--txt);background:transparent}
.btn-g:hover{border-color:var(--dim2);color:var(--strong);background:var(--panel2)}
.btn-lg{padding:13px 28px;font-size:15px}

/* ---------- Hero ---------- */
.hero{padding:76px 0 64px;position:relative;overflow:hidden}
.hero::before{
  content:"";position:absolute;top:-260px;left:50%;transform:translateX(-50%);
  width:900px;height:600px;pointer-events:none;
  background:var(--hero-glow);
}
.hero-inner{position:relative}
.badge{
  display:inline-flex;align-items:center;gap:7px;
  padding:4px 12px;border-radius:20px;font-size:12.5px;font-weight:500;
  background:rgba(79,124,255,.09);border:1px solid rgba(79,124,255,.26);color:var(--badge-txt);
  margin-bottom:22px;
}
.badge .live{width:6px;height:6px;border-radius:50%;background:var(--green);box-shadow:0 0 8px var(--green)}
h1{font-size:44px;line-height:1.24;font-weight:750;letter-spacing:-1.2px;margin-bottom:20px}
h1 em{font-style:normal;background:linear-gradient(135deg,#6f9bff,#b18cff 60%,#22d3ee);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.hero p.sub{font-size:17px;color:var(--dim);max-width:680px;margin-bottom:32px;line-height:1.7}
.hero-cta{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:14px}
.hero-note{font-size:13px;color:var(--dim2)}
@media(max-width:700px){h1{font-size:32px}.hero{padding:50px 0 44px}}

/* ---------- 统计条 ---------- */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;margin:52px 0 0}
.stats div{background:var(--bg2);padding:22px 18px;text-align:center}
.stats .n{font-size:26px;font-weight:700;color:var(--strong);letter-spacing:-.8px;font-variant-numeric:tabular-nums}
.stats .l{font-size:12px;color:var(--dim2);margin-top:3px}
@media(max-width:700px){.stats{grid-template-columns:1fr 1fr}}

/* ---------- 通用 section ---------- */
section.blk{padding:68px 0;border-top:1px solid var(--line)}
.sec-h{font-size:12px;letter-spacing:.2em;color:var(--blue);font-weight:700;margin-bottom:12px;text-transform:uppercase}
h2{font-size:30px;font-weight:700;letter-spacing:-.7px;margin-bottom:14px;line-height:1.35}
h2 em{font-style:normal;color:var(--cyan)}
.sec-desc{color:var(--dim);max-width:720px;margin-bottom:36px;font-size:15px}
h3{font-size:18px;font-weight:650;margin-bottom:10px;color:var(--strong)}
h4{font-size:15px;font-weight:650;margin-bottom:8px;color:var(--strong)}
p{margin-bottom:12px}
.dim{color:var(--dim)}

/* ---------- 卡片网格 ---------- */
.grid{display:grid;gap:16px;grid-template-columns:repeat(2,1fr)}
.g2{grid-template-columns:repeat(2,1fr)}
.g3{grid-template-columns:repeat(3,1fr)}
.g4{grid-template-columns:repeat(4,1fr)}
@media(max-width:900px){.g3,.g4{grid-template-columns:repeat(2,1fr)}}
@media(max-width:620px){.g2,.g3,.g4,.grid{grid-template-columns:1fr}}
.card{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
  padding:24px;transition:border-color .18s,transform .18s;
  box-shadow:var(--card-shadow);
}
.card:hover{border-color:var(--line2);transform:translateY(-2px)}
.card .ico{
  width:38px;height:38px;border-radius:9px;display:flex;align-items:center;justify-content:center;
  font-size:17px;margin-bottom:14px;
  background:rgba(79,124,255,.1);border:1px solid rgba(79,124,255,.2);
}
.card p{font-size:13.5px;color:var(--dim);margin-bottom:0;line-height:1.65}

/* ---------- 厂商 logo 墙 ---------- */
.vendors{display:grid;grid-template-columns:repeat(6,1fr);gap:12px;margin-top:8px}
.vendors div{
  background:var(--panel);border:1px solid var(--line);border-radius:7px;
  padding:18px 10px;text-align:center;font-size:13px;color:var(--dim);font-weight:600;
}
@media(max-width:820px){.vendors{grid-template-columns:repeat(3,1fr)}}

/* ---------- 代码块 ---------- */
pre{
  background:var(--code-bg);border:1px solid var(--line);border-radius:7px;
  padding:18px 20px;overflow-x:auto;font-size:12.8px;line-height:1.7;
  font-family:"SF Mono",Consolas,"Courier New",monospace;color:var(--code-txt);
}
pre .c{color:var(--syn-c)}
pre .k{color:var(--syn-k)}
pre .s{color:var(--syn-s)}
pre .f{color:var(--syn-f)}
.code-head{
  display:flex;align-items:center;justify-content:space-between;
  background:var(--panel2);border:1px solid var(--line);border-bottom:none;
  border-radius:7px 7px 0 0;padding:8px 16px;font-size:12px;color:var(--dim2);
}
.code-head + pre{border-radius:0 0 7px 7px;margin-top:0}

/* ---------- 表格 ---------- */
table{width:100%;border-collapse:collapse;font-size:13.5px;margin:8px 0}
th{
  text-align:left;padding:11px 14px;background:var(--panel2);color:var(--dim);
  font-weight:600;font-size:12px;letter-spacing:.05em;border-bottom:1px solid var(--line);
}
td{padding:11px 14px;border-bottom:1px solid var(--line);color:var(--td-txt)}
tr:hover td{background:rgba(79,124,255,.03)}
td.k{color:var(--strong);font-weight:600}
.tbl-wrap{border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}

/* ---------- 标签 ---------- */
.tag{display:inline-block;padding:1px 8px;border-radius:3px;font-size:11.5px;font-weight:600}
.tag.g{background:rgba(52,211,153,.13);color:var(--tag-g-txt)}
.tag.b{background:rgba(79,124,255,.13);color:var(--tag-b-txt)}
.tag.a{background:rgba(251,191,36,.13);color:var(--tag-a-txt)}
.tag.r{background:rgba(248,113,113,.13);color:var(--tag-r-txt)}
.tag.n{background:var(--panel2);color:var(--dim2)}

/* ---------- 价格卡 ---------- */
.price-card{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
  padding:28px 24px;position:relative;
}
.price-card.hot{border-color:rgba(79,124,255,.45);background:linear-gradient(180deg,rgba(79,124,255,.06),var(--panel) 40%)}
.price-card .hot-tag{
  position:absolute;top:-10px;right:20px;background:linear-gradient(135deg,var(--blue),var(--purple));
  color:#fff;font-size:11px;font-weight:700;padding:3px 10px;border-radius:12px;letter-spacing:.03em;
}
.price-card .pname{font-size:14px;color:var(--dim);font-weight:600;margin-bottom:8px}
.price-card .amt{font-size:34px;font-weight:750;color:var(--strong);letter-spacing:-1.5px;line-height:1.1;margin-bottom:4px}
.price-card .amt small{font-size:14px;font-weight:500;color:var(--dim);letter-spacing:0;margin-left:3px}
.price-card .pdesc{font-size:12.5px;color:var(--dim2);margin-bottom:18px;min-height:38px}
.price-card ul{list-style:none;font-size:13px;color:var(--dim);margin-bottom:22px}
.price-card li{padding:6px 0 6px 20px;position:relative}
.price-card li::before{content:"✓";position:absolute;left:0;color:var(--green);font-weight:700;font-size:12px}
.price-card .btn{width:100%}

/* ---------- FAQ ---------- */
.faq{border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.faq details{border-bottom:1px solid var(--line);background:var(--panel)}
.faq details:last-child{border-bottom:none}
.faq summary{
  padding:16px 20px;cursor:pointer;font-size:14.5px;font-weight:600;color:var(--strong);
  list-style:none;display:flex;justify-content:space-between;align-items:center;gap:14px;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";color:var(--dim2);font-size:19px;font-weight:400;flex:none}
.faq details[open] summary::after{content:"−"}
.faq .ans{padding:0 20px 18px;font-size:13.5px;color:var(--dim);line-height:1.75}
.faq .ans p{margin-bottom:8px}
.faq .ans p:last-child{margin-bottom:0}

/* ---------- 提示条 ---------- */
.note{
  border-left:2px solid var(--amber);background:rgba(251,191,36,.05);
  padding:14px 18px;border-radius:0 6px 6px 0;font-size:13.5px;color:var(--note-txt);margin:20px 0;
}
.note.info{border-left-color:var(--blue);background:rgba(79,124,255,.05);color:var(--note-info-txt)}
.note.warn{border-left-color:var(--red);background:rgba(248,113,113,.05);color:var(--note-warn-txt)}

/* ---------- 步骤 ---------- */
.steps{counter-reset:s;display:grid;gap:18px;margin-top:8px}
.step{display:flex;gap:16px;align-items:flex-start}
.step .num{
  width:28px;height:28px;border-radius:50%;flex:none;
  background:rgba(79,124,255,.12);border:1px solid rgba(79,124,255,.3);color:var(--step-txt);
  display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:700;margin-top:2px;
}
.step .body{flex:1;min-width:0}
.step .body h4{margin-bottom:5px}
.step .body p{font-size:13.5px;color:var(--dim);margin-bottom:10px}

/* ---------- 文档侧栏布局 ---------- */
.doc-layout{display:grid;grid-template-columns:220px 1fr;gap:44px;padding:44px 0 72px}
.doc-nav{position:sticky;top:86px;align-self:start}
.doc-nav h5{font-size:11px;letter-spacing:.14em;color:var(--dim2);font-weight:700;margin-bottom:10px;text-transform:uppercase}
.doc-nav a{display:block;padding:5px 0;font-size:13.5px;color:var(--dim)}
.doc-nav a:hover{color:var(--cyan)}
.doc-nav .grp{margin-bottom:24px}
.doc-body h2{font-size:24px;margin:36px 0 12px}
.doc-body h2:first-child{margin-top:0}
.doc-body h3{margin:24px 0 8px;font-size:16px}
.doc-body p{color:var(--body-txt);font-size:14px;margin-bottom:12px}
.doc-body ul,.doc-body ol{margin:12px 0 16px 22px;color:var(--body-txt);font-size:14px}
.doc-body li{margin-bottom:7px}
.doc-body code{background:var(--code-bg);padding:2px 6px;border-radius:3px;color:var(--cyan);font-size:12.8px;font-family:Consolas,monospace}
@media(max-width:900px){.doc-layout{grid-template-columns:1fr}.doc-nav{display:none}}

/* ---------- CTA 结尾 ---------- */
.cta-end{
  background:linear-gradient(135deg,rgba(79,124,255,.10),rgba(139,92,246,.06));
  border:1px solid rgba(79,124,255,.22);border-radius:10px;
  padding:44px 40px;text-align:center;margin:0 0 8px;
}
.cta-end h2{font-size:26px;margin-bottom:10px}
.cta-end p{color:var(--dim);margin-bottom:24px}

/* ---------- 页脚 ---------- */
footer{border-top:1px solid var(--line);padding:52px 0 32px;margin-top:0}
.f-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:32px;margin-bottom:36px}
.f-grid h5{font-size:13px;font-weight:700;color:var(--strong);margin-bottom:12px}
.f-grid a{display:block;font-size:13px;color:var(--dim);padding:3px 0}
.f-grid a:hover{color:var(--cyan)}
.f-grid .about{font-size:13px;color:var(--dim2);line-height:1.7;margin-top:10px;max-width:280px}
.f-bot{
  border-top:1px solid var(--line);padding-top:22px;
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:12.5px;color:var(--dim2);
}
@media(max-width:820px){.f-grid{grid-template-columns:1fr 1fr}}
@media(max-width:520px){.f-grid{grid-template-columns:1fr}}

/* ---------- 面包屑 ---------- */
.crumb{font-size:12.5px;color:var(--dim2);padding:18px 0 0}
.crumb a{color:var(--dim2)}
.crumb a:hover{color:var(--cyan)}
.crumb span{margin:0 7px;color:var(--crumb-sep)}

/* ---------- 文章 ---------- */
.article{max-width:760px;margin:0 auto;padding:36px 24px 72px}
.article h1{font-size:32px;margin-bottom:14px;line-height:1.32}
.article .meta{font-size:12.5px;color:var(--dim2);margin-bottom:28px;padding-bottom:20px;border-bottom:1px solid var(--line)}
.article h2{font-size:21px;margin:34px 0 12px;padding-top:6px}
.article h3{font-size:16.5px;margin:24px 0 8px}
.article p{color:var(--body-txt);margin-bottom:14px}
.article ul,.article ol{margin:12px 0 18px 24px;color:var(--body-txt)}
.article li{margin-bottom:8px}
.article code{background:var(--code-bg);padding:2px 6px;border-radius:3px;color:var(--cyan);font-size:13px}
.article .lead-p{font-size:16.5px;color:var(--lead-txt);line-height:1.75;margin-bottom:22px}

/* ---------- 状态点 ---------- */
.dot-ok{display:inline-block;width:8px;height:8px;border-radius:50%;background:var(--green);box-shadow:0 0 7px rgba(52,211,153,.6);margin-right:7px;vertical-align:1px}
.dot-warn{display:inline-block;width:8px;height:8px;border-radius:50%;background:var(--amber);margin-right:7px;vertical-align:1px}
.dot-err{display:inline-block;width:8px;height:8px;border-radius:50%;background:var(--red);margin-right:7px;vertical-align:1px}

/* ---------- 打印/选中 ---------- */
::selection{background:rgba(79,124,255,.3)}

/* ---------- GEO 站补充 ---------- */
.hero-sub{font-size:16px;color:var(--dim);max-width:660px;line-height:1.85;margin:0 auto 32px}
.faq details > p{padding:0 20px 18px;font-size:13.5px;color:var(--dim);line-height:1.75;margin:0}
.hl{color:var(--strong);font-weight:600}
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:26px}
@media(max-width:760px){.two-col{grid-template-columns:1fr}}
.kv{display:grid;grid-template-columns:130px 1fr;gap:10px 16px;font-size:13.5px}
.kv dt{color:var(--dim2)} .kv dd{color:var(--dim)}
.form-row{margin-bottom:16px}
.form-row label{display:block;font-size:13px;color:var(--dim);margin-bottom:6px;font-weight:500}
.form-row input,.form-row textarea,.form-row select{
  width:100%;background:var(--bg2);border:1px solid var(--line);border-radius:7px;
  padding:11px 13px;color:var(--txt);font-family:inherit;font-size:14px;outline:none;
  transition:border-color .15s;
}
.form-row input:focus,.form-row textarea:focus,.form-row select:focus{border-color:var(--blue)}
.form-row textarea{resize:vertical;min-height:100px}
.form-hint{font-size:12px;color:var(--dim2);margin-top:5px}

/* ---------- 主题切换器 ---------- */
.theme-sw{display:flex;gap:5px;align-items:center;flex:none}
.theme-sw button{
  width:20px;height:20px;border-radius:50%;cursor:pointer;padding:0;
  border:1px solid var(--line2);transition:transform .15s,box-shadow .15s;
  outline:none;
}
.theme-sw button:hover{transform:scale(1.16)}
.theme-sw button.on{box-shadow:0 0 0 2px var(--blue)}
.theme-sw button[data-t="white"]{background:#ffffff}
.theme-sw button[data-t="warm"]{background:#fbf7ee}
.theme-sw button[data-t="blue"]{background:#e9f1fa}
.theme-sw button[data-t="dark"]{background:#0d1219}
@media(max-width:820px){
  .nav-cta .btn{padding:8px 13px;font-size:13px}
  .theme-sw{gap:4px}
  .theme-sw button{width:17px;height:17px}
}
@media(max-width:430px){
  .nav-cta .btn{padding:7px 10px;font-size:12px}
  .theme-sw button{width:15px;height:15px}
}

/* ---------- 三段式标题展示 ---------- */
.tf-row{display:grid;grid-template-columns:1fr auto 1fr auto 1fr;gap:10px;align-items:stretch;margin:6px 0 16px}
.tf-card{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
  padding:20px 18px;box-shadow:var(--card-shadow);
}
.tf-card .t{font-size:11px;font-weight:700;color:var(--blue);letter-spacing:.08em;margin-bottom:9px}
.tf-card .w{font-size:19px;font-weight:750;color:var(--strong);letter-spacing:-.4px;margin-bottom:9px;line-height:1.3}
.tf-card .d{font-size:12.5px;color:var(--dim);line-height:1.68}
.tf-plus{display:flex;align-items:center;justify-content:center;width:14px;font-size:18px;color:var(--dim2)}
.tf-result{
  background:var(--panel2);border:1px solid var(--line);border-radius:7px;
  padding:13px 16px;font-size:14px;font-weight:600;color:var(--strong);
  word-break:break-all;line-height:1.6;
}
.tf-result .lbl{
  display:inline-block;font-size:10.5px;font-weight:700;color:var(--dim2);
  letter-spacing:.1em;margin-right:10px;vertical-align:1px;
}
.tf-note{font-size:12.5px;color:var(--dim2);margin-top:11px;line-height:1.7}
@media(max-width:820px){
  .tf-row{grid-template-columns:1fr;gap:8px}
  .tf-plus{width:auto;height:14px;font-size:16px}
}