*{box-sizing:border-box}
:root{--bg:#f7f9fc;--card:#ffffff;--text:#0f172a;--muted:#64748b;--line:#e2e8f0;--soft:#f1f5f9;--soft2:#eff6ff;--blue:#2563eb;--blue2:#1d4ed8;--blueSoft:#eef4ff;--shadow:0 10px 30px rgba(15,23,42,.045);--shadow2:0 16px 38px rgba(15,23,42,.09)}
html[data-theme="dark"]{--bg:#0b1220;--card:#111827;--text:#f1f5f9;--muted:#94a3b8;--line:#273246;--soft:#172033;--soft2:#17233d;--blue:#7fb0ff;--blue2:#93c5fd;--blueSoft:#17233d;--shadow:none;--shadow2:none}
body{margin:0;font-family:Inter,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;background:var(--bg);color:var(--text)}
a{text-decoration:none;color:inherit}
.wrap{max-width:var(--t67-page-max,1440px);margin:auto;padding:0 var(--t67-page-gutter,24px)}
.hidden{display:none!important}
.hero{position:relative;overflow:hidden;text-align:center;padding:20px 0 20px;margin-top:20px;margin-bottom:20px;}
.hero .wrap{position:relative;z-index:2}
.hero h1{max-width:1180px;margin:0 auto 22px;color:var(--text);font-size:48px;font-weight:900;letter-spacing:-2.2px;line-height:1.06;text-wrap:balance}
.hero p{max-width:900px;margin:0 auto;color:var(--muted);font-size:20px;line-height:1.75;text-wrap:balance}
.hero-actions{display:flex;justify-content:center;gap:14px;flex-wrap:wrap;margin-top:30px}
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:0 22px;border-radius:999px;font-size:15px;font-weight:800;transition:transform .2s ease,box-shadow .2s ease,background .2s ease,border-color .2s ease}
.btn-primary{color:#fff;background:linear-gradient(135deg,#2563eb,#3b82f6);box-shadow:0 12px 28px rgba(37,99,235,.24)}
.btn-primary:hover{color:#fff;background:linear-gradient(135deg,#1d4ed8,#2563eb);transform:translateY(-2px);box-shadow:0 18px 36px rgba(37,99,235,.32)}
.btn-light{color:var(--text);background:color-mix(in srgb,var(--card) 88%,transparent);border:1px solid #dbe5f1;box-shadow:0 8px 22px rgba(15,23,42,.05);backdrop-filter:blur(10px)}
.btn-light:hover{color:#2563eb;background:var(--card);border-color:#bfdbfe;transform:translateY(-2px);box-shadow:0 14px 28px rgba(15,23,42,.09)}
.hero+.section{position:relative;z-index:3;margin-top:-58px;padding-top:0}
.hero+.section .category-strip{margin-top:0}
.category-strip{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:16px}
.cat{min-height:168px;padding:24px 22px;background:color-mix(in srgb,var(--card) 92%,transparent);border:1px solid rgba(203,213,225,.82);border-radius:22px;box-shadow:0 18px 42px rgba(15,23,42,.08);backdrop-filter:blur(14px);transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease}
.cat:hover{transform:translateY(-5px);border-color:#bfdbfe;box-shadow:0 24px 48px rgba(37,99,235,.13)}
.cat strong{display:block;margin-bottom:10px;color:var(--text);font-size:18px;font-weight:850;line-height:1.3}
.cat span{color:var(--muted);font-size:14px;line-height:1.7}
.section{padding:28px 0}
.section-title{display:flex;align-items:end;justify-content:space-between;gap:18px;margin-bottom:18px}
.section-title h2{font-size:28px;margin:0;letter-spacing:-.5px}
.section-title p{margin:0;color:var(--muted)}
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.card,.mini-links,.faq-item,.topic-box,.geo-banner-inner{background:var(--card);border:1px solid var(--line);box-shadow:var(--shadow)}
.card{border-radius:20px;padding:22px;transition:transform .18s ease,border-color .18s ease,box-shadow .18s ease}
.card:hover{transform:translateY(-3px);border-color:#bfdbfe;box-shadow:var(--shadow2)}
.card h3{font-size:20px;margin:0 0 10px;color:var(--text)}
.card p{margin:0;color:var(--muted);font-size:15px;line-height:1.7}
.badge{display:inline-block;margin-top:15px;padding:6px 11px;border-radius:30px;background:var(--blueSoft);color:var(--blue);font-size:13px;font-weight:650}
.mini-links,.topic-box{border-radius:20px;padding:20px}
.mini-links h2{font-size:24px;margin:0 0 14px}
.link-list{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
.link-list a{padding:11px 12px;border-radius:12px;color:var(--text);background:var(--soft);font-size:15px}
.link-list a:hover,.topics a:hover{background:var(--blueSoft);color:var(--blue)}
.faq{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.faq-item{border-radius:18px;padding:20px}
.faq-item h3{margin:0 0 8px;font-size:18px;color:var(--text)}
.faq-item p{margin:0;color:var(--muted);line-height:1.7;font-size:15px}
.topics{display:flex;flex-wrap:wrap;gap:10px}
.topics a{background:var(--soft);color:var(--text);border-radius:999px;padding:8px 12px;font-size:14px}
.geo-banner{padding:30px 0}
.geo-banner-inner{border-radius:24px;padding:30px;text-align:center;background:linear-gradient(135deg,var(--card),var(--soft2))}
.geo-banner h2{margin:0 0 10px;font-size:28px;letter-spacing:-.5px}
.geo-banner p{max-width:620px;margin:0 auto 18px;color:var(--muted);font-size:16px;line-height:1.7}
.geo-links{display:flex;justify-content:center;gap:10px;flex-wrap:wrap}
.geo-links a{padding:10px 14px;border-radius:999px;background:var(--blue);color:#fff;font-size:14px;font-weight:700}
.geo-links a:hover{background:var(--blue2)}
.tool67-plan-info{font-size:14px;color:var(--muted);font-weight:700}
.tool67-plan-info b{color:#2563eb}
.limit-box{background:#fff7ed;border:1px solid #fed7aa;color:#9a3412;border-radius:16px;padding:18px;line-height:1.7;margin-top:12px}
.limit-box strong{display:block;font-size:18px;margin-bottom:8px}
.limit-actions{display:flex;gap:10px;margin-top:14px;flex-wrap:wrap}
.limit-actions a{display:inline-flex;align-items:center;justify-content:center;height:42px;padding:0 18px;border-radius:999px;background:#2563eb;color:#fff;font-weight:700;text-decoration:none}
.limit-actions a:last-child{background:#111827}
.m-grid{columns:4 230px;column-gap:10px;margin:18px 0 42px}
.m-card{break-inside:avoid;position:relative;margin:0 0 12px;border-radius:18px;overflow:hidden;background:transparent}
.m-card-img{display:block;position:relative;text-decoration:none}
.m-card-img img{width:100%;height:auto;display:block;border-radius:18px;background:var(--soft);transition:transform .18s ease,filter .18s ease,box-shadow .18s ease}
.m-card:hover .m-card-img img{transform:translateY(-3px);filter:brightness(.98);box-shadow:0 14px 28px rgba(15,23,42,.14)}
.m-heart{position:absolute;top:10px;right:10px;width:36px;height:36px;border:none;border-radius:50%;display:flex;align-items:center;justify-content:center;background:color-mix(in srgb,var(--card) 55%,transparent);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);color:var(--muted);font-size:18px;cursor:pointer;opacity:.35;transform:scale(.92);transition:opacity .25s,transform .25s,background .25s,color .25s;z-index:5}
.m-heart.active{color:#ef4444;background:var(--card)}
.m-foot{display:grid;grid-template-columns:1fr auto;align-items:center;gap:8px;padding:8px 2px 0}
.m-title{font-size:13px;font-weight:900;line-height:1.35;color:var(--text);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.m-use{height:30px;border:0;border-radius:999px;background:#efefef;color:#000;font-size:12px;font-weight:900;padding:0 13px;cursor:pointer;white-space:nowrap}
.m-use:hover{background:#1d4ed8;color:#fff}
.sp-hero{padding:44px 0 26px;background:radial-gradient(circle at top left,#dbeafe,transparent 34%),radial-gradient(circle at top right,#fce7f3,transparent 30%);border-bottom:1px solid #e5e7eb}
.sp-hero h1{font-size:46px;line-height:1.08;margin:0 0 14px;letter-spacing:-1.4px;max-width:980px}
.sp-hero p{max-width:860px;color:#52637a;font-size:18px;line-height:1.75;margin:0}
.sp-layout{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(360px,.95fr);gap:26px;margin:30px 0 34px;align-items:start}
.sp-card{background:var(--card);border:1px solid #e5e7eb;border-radius:28px;padding:20px;box-shadow:0 16px 40px rgba(15,23,42,.07)}
.sp-image-card{padding:16px}
.sp-side-card{position:sticky;top:18px}
.sp-main-img{width:100%;border-radius:24px;background:var(--soft);display:block}
.sp-meta{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:16px}
.sp-meta span{background:#eef2ff;color:#2563eb;border-radius:999px;padding:7px 12px;font-size:12px;font-weight:900}
.sp-tags{display:flex;gap:8px;flex-wrap:wrap;margin:14px 0 18px}
.sp-tags span{background:var(--soft);color:var(--muted);border-radius:999px;padding:7px 11px;font-size:12px;font-weight:900}
.sp-prompt{white-space:pre-wrap;background:var(--soft);border:1px solid #e5e7eb;border-radius:20px;padding:16px;line-height:1.8;color:var(--text);font-size:15px;max-height:360px;overflow:auto}
.sp-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:18px}
.sp-actions a,.sp-actions button{height:46px;border-radius:999px;border:0;background:var(--soft);color:var(--text);font-weight:900;padding:0 18px;text-decoration:none;cursor:pointer;display:inline-flex;align-items:center;justify-content:center}
.sp-actions .blue{background:#2563eb;color:#fff}
.sp-actions .blue:hover{background:#1d4ed8}
.sp-section{background:var(--card);border:1px solid #e5e7eb;border-radius:28px;padding:24px;margin:24px 0;box-shadow:0 12px 32px rgba(15,23,42,.05)}
.sp-section h2{font-size:28px;margin:0 0 12px;letter-spacing:-.5px}
.sp-section p,.sp-section li{color:var(--muted);line-height:1.85;font-size:16px}
.sp-section ul{margin:0;padding-left:22px}
.sp-steps{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:16px}
.sp-step{background:var(--soft);border:1px solid #e5e7eb;border-radius:20px;padding:16px}
.sp-step b{display:block;margin-bottom:7px}
.sp-step span{color:var(--muted);font-size:14px;line-height:1.6}
.sp-faq{background:var(--soft);border:1px solid #e5e7eb;border-radius:18px;padding:15px;margin:10px 0}
.sp-faq b{display:block;margin-bottom:6px;color:var(--text)}
















@media(max-width:1050px){.hero{padding:78px 0 88px}
.hero h1{font-size:50px;letter-spacing:-1.8px}
.hero p{max-width:780px;font-size:18px}
.category-strip{grid-template-columns:repeat(3,minmax(0,1fr))}
}
@media(max-width:900px){.wrap{padding:0 14px}
.section{padding:22px 0}
.section-title{display:block;margin-bottom:14px}
.section-title h2{font-size:24px}
.section-title p{margin-top:6px;font-size:14px}
.grid{grid-template-columns:repeat(2,1fr);gap:12px}
.faq{grid-template-columns:1fr;gap:12px}
.link-list{grid-template-columns:repeat(2,1fr);gap:9px}
.card{padding:16px;border-radius:16px}
.card h3{font-size:17px}
.card p{font-size:13px;line-height:1.55}
.badge{font-size:12px;padding:5px 9px}
.geo-banner-inner,.mini-links,.topic-box{padding:16px;border-radius:16px}
.geo-banner h2,.mini-links h2{font-size:22px}
.link-list a,.topics a{font-size:13px;padding:9px 10px}
.sp-hero{padding:32px 0 20px}
.sp-hero h1{font-size:34px}
.sp-hero p{font-size:15px}
.sp-layout{grid-template-columns:1fr}
.sp-side-card{position:static}
.sp-card{padding:16px;border-radius:22px}
.sp-main-img{border-radius:18px}
.sp-steps{grid-template-columns:1fr}
}
@media(max-width:760px){.hero{padding:62px 0 78px}
.hero h1{font-size:40px;letter-spacing:-1.3px;line-height:1.1}
.hero p{max-width:96%;font-size:16px;line-height:1.65}
.hero-actions{margin-top:24px;gap:10px}
.hero+.section{margin-top:-42px}
.category-strip{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
.cat{min-height:150px;padding:20px 18px;border-radius:18px}
}
@media(max-width:720px){.m-grid{columns:2 150px;column-gap:8px;margin:14px 0 30px}
.m-card{margin-bottom:10px;border-radius:15px}
.m-card-img img{border-radius:15px}
.m-heart{width:34px;height:34px;font-size:17px;top:8px;right:8px}
.m-title{font-size:11px}
.m-use{height:26px;font-size:10px;padding:0 9px}
}
@media(max-width:520px){.wrap{padding:0 12px}
.hero{padding:50px 0 68px}
.hero h1{font-size:34px;letter-spacing:-1px}
.hero p{font-size:15px}
.hero-actions{width:100%}
.hero-actions .btn{width:100%}
.hero+.section{margin-top:-34px}
.category-strip{grid-template-columns:1fr}
.cat{min-height:auto}
.cat span{display:block}
.grid{grid-template-columns:repeat(2,1fr)}
.link-list{grid-template-columns:1fr}
.card p{display:none}
.card{min-height:138px}
}


.tool-hero{padding:58px 0 32px;background:radial-gradient(circle at top left,#dbeafe,transparent 36%),radial-gradient(circle at top right,#fce7f3,transparent 30%)}
.tool-hero .hero-inner{text-align:center}
.tool-hero h1{font-size:56px;line-height:1.08;margin:0 0 16px;letter-spacing:-1.6px}
.tool-hero p{max-width:820px;margin:auto;color:var(--muted);font-size:19px;line-height:1.75}

.tool-shell{margin:28px auto 46px}
.tool-card{background:var(--card);border:1px solid #e5e7eb;border-radius:30px;box-shadow:0 28px 80px rgba(15,23,42,.08);overflow:hidden}
.tool-top{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:18px 22px;border-bottom:1px solid #eef2f7;background:#fbfdff}
.tool-tabs{display:flex;gap:8px;flex-wrap:wrap}
.pill{border:1px solid #dbe3ef;background:var(--card);color:var(--text);border-radius:999px;padding:9px 14px;font-size:14px;font-weight:800}
.pill.active{background:#2563eb;color:#fff;border-color:#2563eb}

.tool-main{display:grid;grid-template-columns:1fr 1fr}
.editor{padding:22px}
.editor:first-child{border-right:1px solid #eef2f7}
.editor-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px}
.editor-head h2{margin:0;font-size:20px}
.count{font-size:13px;color:#94a3b8}

textarea{width:100%;min-height:410px;border:1px solid #d7dee9;border-radius:18px;padding:16px;font-family:inherit;font-size:15px;line-height:1.75;outline:none;resize:vertical;color:var(--text);background:var(--card)}
textarea:focus{border-color:#2563eb;box-shadow:0 0 0 3px rgba(37,99,235,.12)}
.options{display:grid;grid-template-columns:1fr 1fr 1fr;gap:12px;margin-top:14px}
select,input{width:100%;height:46px;border:1px solid #d7dee9;border-radius:14px;padding:0 12px;background:var(--card);color:var(--text);font-family:inherit;outline:none}
select:focus,input:focus{border-color:#2563eb;box-shadow:0 0 0 3px rgba(37,99,235,.12)}

.btn-row{display:flex;gap:10px;flex-wrap:wrap;margin-top:14px}
button{border:0;border-radius:14px;padding:13px 20px;font-family:inherit;font-weight:900;cursor:pointer}
.primary{background:#2563eb;color:#fff}
.primary:disabled{background:#93c5fd;cursor:not-allowed}
.secondary{background:var(--soft);color:var(--text)}
.status{min-height:22px;margin-top:12px;color:var(--muted);font-size:14px}

.examples{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin:30px 0}
.example{background:var(--card);border:1px solid #e5e7eb;border-radius:24px;padding:22px;box-shadow:0 14px 36px rgba(15,23,42,.04)}
.example h3{margin:0 0 12px;font-size:20px}
.before,.after{padding:16px;border-radius:16px;line-height:1.7;font-size:15px}
.before{background:var(--soft);color:var(--muted);margin-bottom:12px}
.after{background:#eff6ff;color:#1e3a8a}

.content{display:grid;grid-template-columns:2fr 1fr;gap:24px;margin:34px 0 54px}
.article,.sidebox{background:var(--card);border:1px solid #e5e7eb;border-radius:26px;padding:26px;box-shadow:0 14px 36px rgba(15,23,42,.04)}
.article h2{font-size:28px;margin:0 0 14px}
.article h3{font-size:22px;margin:28px 0 10px}
.article p{color:var(--muted);line-height:1.85;font-size:16px}
.article ul{color:var(--muted);line-height:1.85}
.faq-item{border-top:1px solid #e5e7eb;padding:16px 0}
.faq-item b{display:block;margin-bottom:8px}
.faq-item p{margin:0;color:var(--muted);line-height:1.75}
.sidebox h3{margin:0 0 14px;font-size:22px}
.side-link{display:block;padding:13px 0;border-bottom:1px solid #e5e7eb;color:#2563eb;font-weight:800}
.side-note{background:#eff6ff;color:#1e3a8a;border-radius:18px;padding:18px;margin-top:18px;line-height:1.7}









@media(max-width:900px){
  .tool-hero{padding:46px 0 24px}
  .tool-hero h1{font-size:38px}
  .tool-hero p{font-size:16px}
  .tool-main,.examples,.content{grid-template-columns:1fr}
  .editor:first-child{border-right:0;border-bottom:1px solid #eef2f7}
  .options{grid-template-columns:1fr}
  .tool-top{display:block}
  .tool67-plan-info{margin-top:12px}
}

@media(max-width:520px){
  .tool-card{border-radius:22px}
  .editor{padding:16px}
  textarea{min-height:300px}
  .article,.sidebox,.example{padding:18px;border-radius:20px}
}

html[data-theme="dark"] .sp-hero{background:radial-gradient(circle at top left,rgba(59,130,246,.14),transparent 34%),radial-gradient(circle at top right,rgba(219,39,119,.10),transparent 30%);border-color:var(--line)}
html[data-theme="dark"] .sp-card,html[data-theme="dark"] .sp-section,html[data-theme="dark"] .sp-step,html[data-theme="dark"] .sp-faq{background:var(--card);border-color:var(--line);box-shadow:none}
html[data-theme="dark"] .sp-prompt,html[data-theme="dark"] .sp-tags span,html[data-theme="dark"] .sp-actions a,html[data-theme="dark"] .sp-actions button{background:var(--soft);color:var(--text);border-color:var(--line)}
html[data-theme="dark"] .sp-meta span{background:var(--blueSoft);color:var(--blue)}
html[data-theme="dark"] .m-use{background:var(--soft);color:var(--text)}