:root{
    --primary:#4B3FE3;
    --primary-dark:#3a2fc0;
    --primary-soft:#EEEDFD;
    --text:#1a1a2e;
    --text-light:#6b6b7d;
    --cat1:#4B3FE3;--cat1-soft:#EEEDFD;
    --cat2:#16a34a;--cat2-soft:#dcfce7;
    --cat3:#ea580c;--cat3-soft:#fed7aa;
    --cat4:#0891b2;--cat4-soft:#cffafe;
    --cat5:#ca8a04;--cat5-soft:#fef9c3;
    --gradient-primary:linear-gradient(135deg,#4B3FE3 0%,#7c6fff 50%,#3a2fc0 100%);
    --shadow-soft:0 8px 30px rgba(75,63,227,.07);
    --shadow-card:0 4px 16px rgba(75,63,227,.06),0 1px 3px rgba(0,0,0,.04);
    --ease:cubic-bezier(.2,.8,.2,1);
    --bg:#fafafe;
    --card:#ffffff;
    --border:#e8e8f0;
    --shadow:0 4px 20px rgba(75,63,227,0.08);
    --shadow-hover:0 8px 30px rgba(75,63,227,0.18);
    --radius:16px;
  }
  *{margin:0;padding:0;box-sizing:border-box}
  body{
    font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;
    background:var(--bg);
    color:var(--text);
    line-height:1.6;
    min-height:100vh;
  }
  .container{
    max-width:1100px;
    margin:0 auto;
    padding:0 24px;
  }
  /* Header */
  header{
    background:linear-gradient(135deg,var(--primary) 0%,var(--primary-dark) 100%);
    color:#fff;
    padding:48px 0 56px;
    text-align:center;
  }
  .logo{
    font-size:14px;
    letter-spacing:3px;
    text-transform:uppercase;
    opacity:0.85;
    margin-bottom:12px;
    font-weight:600;
  }
  h1{
    font-size:42px;
    font-weight:800;
    letter-spacing:-1px;
    margin-bottom:14px;
  }
  .tagline{
    font-size:17px;
    opacity:0.92;
    max-width:620px;
    margin:0 auto 8px;
  }
  .sub-tag{
    font-size:13px;
    opacity:0.75;
    margin-top:4px;
  }
  /* Hero 区渐变美化 */
  .hero-bar{
    background:var(--gradient-primary);
    color:#fff;
    padding:32px 0 28px;
    position:relative;
    overflow:hidden;
  }
  .hero-bar::before,.hero-bar::after{
    content:"";position:absolute;border-radius:50%;
    background:radial-gradient(circle,rgba(255,255,255,.18) 0%,transparent 60%);
    pointer-events:none;
  }
  .hero-bar::before{width:380px;height:380px;top:-180px;right:-100px}
  .hero-bar::after{width:300px;height:300px;bottom:-150px;left:-80px}
  .hero-inner{position:relative;z-index:1}
  .hero-bar .lang-switcher{
    position:absolute;top:18px;right:18px;
    background:rgba(255,255,255,.15);
    padding:4px;border-radius:999px;
    border:1px solid rgba(255,255,255,.25);
    backdrop-filter:blur(10px);
    -webkit-backdrop-filter:blur(10px);
  }
  .hero-bar .lang-switcher a{
    color:#fff;font-size:13px;font-weight:600;
    padding:6px 14px;border-radius:999px;
    text-decoration:none;transition:all .2s var(--ease);
    opacity:.85;
  }
  .hero-bar .lang-switcher a.active{
    background:#fff;color:var(--primary);
    box-shadow:0 2px 8px rgba(0,0,0,.15);
  }
  .hero-bar .lang-switcher a:not(.active):hover{background:rgba(255,255,255,.15);opacity:1}
  .hero-row{
    display:flex;align-items:center;justify-content:center;gap:18px;
    margin-top:8px;
    flex-direction:column;text-align:center;
  }
  .hero-icon{
    font-size:3.5rem;line-height:1;
    filter:drop-shadow(0 2px 8px rgba(0,0,0,.15));
  }
  .hero-text h1{
    margin:0;font-size:2.8rem;font-weight:800;
    color:#fff;letter-spacing:-.5px;
    line-height:1.1;
  }
  .hero-text .tagline{
    margin:6px 0 0;font-size:1.05rem;
    color:rgba(255,255,255,.9);
  }
  .hero-text .sub-tag{
    margin:2px 0 0;font-size:12px;
    color:rgba(255,255,255,.65);
  }
  .badges{
    display:flex;flex-wrap:wrap;gap:8px;
    margin-top:18px;
  }
  .badge{
    display:inline-flex;align-items:center;gap:4px;
    font-size:12px;font-weight:600;color:#fff;
    padding:5px 12px;border-radius:999px;
    background:rgba(255,255,255,.15);
    border:1px solid rgba(255,255,255,.25);
    backdrop-filter:blur(10px);
    -webkit-backdrop-filter:blur(10px);
  }
  .search-wrap{
    position:relative;margin-top:18px;max-width:560px;
  }
  .search-wrap input{
    width:100%;
    padding:14px 44px 14px 18px;
    font-size:15px;
    border:1.5px solid rgba(255,255,255,.3);
    border-radius:999px;
    background:rgba(255,255,255,.95);
    color:var(--text);
    transition:all .2s var(--ease);
  }
  .search-wrap input:focus{
    outline:none;
    border-color:#fff;
    box-shadow:0 6px 20px rgba(0,0,0,.15);
    transform:translateY(-1px);
  }
  .search-wrap input::placeholder{color:#9b9bab}
  #search-clear{
    position:absolute;right:8px;top:50%;
    transform:translateY(-50%);
    background:transparent;border:0;
    color:var(--text-light);font-size:16px;
    width:32px;height:32px;border-radius:50%;
    cursor:pointer;transition:all .15s;
    display:none;
  }
  #search-clear.show{display:flex;align-items:center;justify-content:center}
  #search-clear:hover{background:var(--primary-soft);color:var(--primary)}
  @media(max-width:600px){
    .hero-row{flex-direction:column;text-align:center;gap:8px}
    .hero-text h1{font-size:1.6rem}
    .hero-text .tagline{font-size:.9rem}
    .badges{justify-content:center}
  }

  /* Tools grid */
  .tools-section{
    padding:32px 0 24px;
  }
  .section-title{
    font-size:14px;
    color:var(--text-light);
    text-transform:uppercase;
    letter-spacing:2px;
    margin-bottom:28px;
    text-align:center;
    font-weight:600;
  }
  /* 4 分类分区 */
  .cat-section{
    margin-bottom:36px;
  }
  .cat-header{
    display:flex;
    align-items:center;
    gap:10px;
    padding:0 0 12px;
    border-bottom:2px solid var(--border);
    margin-bottom:18px;
  }
  .cat-icon{
    font-size:24px;
    line-height:1;
  }
  .cat-header h2{
    font-size:20px;
    font-weight:800;
    margin:0;
    letter-spacing:-.3px;
  }
  .cat-count{
    margin-left:auto;
    font-size:12px;
    color:var(--text-light);
    background:var(--primary-soft);
    padding:3px 10px;
    border-radius:999px;
    font-weight:600;
  }
  /* 分类色系 */
  .cat-section[data-cat="mortgage"] .cat-header{border-color:var(--cat1)}
  .cat-section[data-cat="mortgage"] .cat-header h2{color:var(--cat1)}
  .cat-section[data-cat="mortgage"] .cat-count{background:var(--cat1-soft);color:var(--cat1)}
  .cat-section[data-cat="mortgage"] .tool-card:hover{border-color:var(--cat1)}
  .cat-section[data-cat="mortgage"] .tool-card::before{background:var(--cat1)}
  .cat-section[data-cat="mortgage"] .tool-icon{background:var(--cat1-soft);color:var(--cat1)}
  .cat-section[data-cat="mortgage"] .tool-link{color:var(--cat1)}

  .cat-section[data-cat="tax"] .cat-header{border-color:var(--cat2)}
  .cat-section[data-cat="tax"] .cat-header h2{color:var(--cat2)}
  .cat-section[data-cat="tax"] .cat-count{background:var(--cat2-soft);color:var(--cat2)}
  .cat-section[data-cat="tax"] .tool-card:hover{border-color:var(--cat2)}
  .cat-section[data-cat="tax"] .tool-card::before{background:var(--cat2)}
  .cat-section[data-cat="tax"] .tool-icon{background:var(--cat2-soft);color:var(--cat2)}
  .cat-section[data-cat="tax"] .tool-link{color:var(--cat2)}

  .cat-section[data-cat="invest"] .cat-header{border-color:var(--cat3)}
  .cat-section[data-cat="invest"] .cat-header h2{color:var(--cat3)}
  .cat-section[data-cat="invest"] .cat-count{background:var(--cat3-soft);color:var(--cat3)}
  .cat-section[data-cat="invest"] .tool-card:hover{border-color:var(--cat3)}
  .cat-section[data-cat="invest"] .tool-card::before{background:var(--cat3)}
  .cat-section[data-cat="invest"] .tool-icon{background:var(--cat3-soft);color:var(--cat3)}
  .cat-section[data-cat="invest"] .tool-link{color:var(--cat3)}

  .cat-section[data-cat="loan"] .cat-header{border-color:var(--cat4)}
  .cat-section[data-cat="loan"] .cat-header h2{color:var(--cat4)}
  .cat-section[data-cat="loan"] .cat-count{background:var(--cat4-soft);color:var(--cat4)}
  .cat-section[data-cat="loan"] .tool-card:hover{border-color:var(--cat4)}
  .cat-section[data-cat="loan"] .tool-card::before{background:var(--cat4)}
  .cat-section[data-cat="loan"] .tool-icon{background:var(--cat4-soft);color:var(--cat4)}
  .cat-section[data-cat="loan"] .tool-link{color:var(--cat4)}
  .cat-section[data-cat="savings"] .cat-header{border-color:var(--cat5)}
  .cat-section[data-cat="savings"] .cat-header h2{color:var(--cat5)}
  .cat-section[data-cat="savings"] .cat-count{background:var(--cat5-soft);color:var(--cat5)}
  .cat-section[data-cat="savings"] .tool-card:hover{border-color:var(--cat5)}
  .cat-section[data-cat="savings"] .tool-card::before{background:var(--cat5)}
  .cat-section[data-cat="savings"] .tool-icon{background:var(--cat5-soft);color:var(--cat5)}
  .cat-section[data-cat="savings"] .tool-link{color:var(--cat5)}

  /* 搜索过滤状态 */
  .tool-card.dimmed{opacity:.18;transform:scale(.98);pointer-events:none}
  .tool-card.matched{border-color:var(--primary)!important;box-shadow:0 6px 24px rgba(75,63,227,.18);transform:translateY(-2px)}
  .cat-section.hidden,.cat-section.tab-hidden{display:none}
  .search-empty{display:none;text-align:center;padding:24px;color:var(--text-light);font-size:14px}
  .search-empty.show{display:block}

  .cat-tabs{
    display:flex;gap:8px;overflow-x:auto;padding:10px 0;margin-bottom:12px;
    position:sticky;top:0;z-index:10;background:var(--bg);
    -webkit-overflow-scrolling:touch
  }
  .cat-tabs::-webkit-scrollbar{height:4px}
  .cat-tabs::-webkit-scrollbar-thumb{background:var(--border);border-radius:4px}
  .cat-tab{
    flex:0 0 auto;padding:8px 18px;border:1.5px solid var(--border);border-radius:999px;
    background:var(--card);color:var(--text);font-size:.85rem;font-weight:600;
    cursor:pointer;transition:all .2s var(--ease);white-space:nowrap
  }
  .cat-tab:hover{border-color:var(--primary);color:var(--primary)}
  .cat-tab.active{background:var(--primary);color:#fff;border-color:var(--primary);box-shadow:0 2px 8px rgba(75,63,227,.25)}

  .tools-grid{
    display:grid;
    grid-template-columns:repeat(auto-fit,minmax(280px,1fr));
    gap:18px;
  }
  @media(min-width:900px){.tools-grid{grid-template-columns:repeat(3,1fr)}}
  .tool-card{
    background:var(--card);
    border-radius:var(--radius);
    padding:24px 20px;
    box-shadow:var(--shadow-card);
    border:1px solid var(--border);
    text-decoration:none;
    color:inherit;
    transition:all 0.3s var(--ease);
    position:relative;
    overflow:hidden;
    display:block;
  }
  .tool-card::before{
    content:"";
    position:absolute;
    top:0;left:0;
    width:4px;height:100%;
    background:var(--primary);
    transform:scaleY(0);
    transform-origin:bottom;
    transition:transform 0.3s ease;
  }
  .tool-card:hover{
    transform:translateY(-4px);
    box-shadow:var(--shadow-hover);
    border-color:var(--primary);
  }
  .tool-card:hover::before{
    transform:scaleY(1);
    transform-origin:top;
  }
  .tool-icon{
    width:48px;height:48px;
    border-radius:12px;
    background:var(--primary-soft);
    color:var(--primary);
    display:flex;
    align-items:center;
    justify-content:center;
    font-size:24px;
    font-weight:700;
    margin-bottom:18px;
  }
  .tool-title{
    font-size:20px;
    font-weight:700;
    margin-bottom:8px;
    color:var(--text);
  }
  .tool-desc{
    font-size:14px;
    color:var(--text-light);
    line-height:1.55;
    margin-bottom:14px;
  }
  .tool-link{
    font-size:13px;
    color:var(--primary);
    font-weight:600;
    display:inline-flex;
    align-items:center;
    gap:4px;
  }
  .tool-link::after{
    content:"→";
    transition:transform 0.2s ease;
  }
  .tool-card:hover .tool-link::after{
    transform:translateX(3px);
  }
  /* Features */
  .features{
    padding:32px 0 64px;
  }
  .features-grid{
    display:grid;
    grid-template-columns:repeat(auto-fit,minmax(200px,1fr));
    gap:32px;
    text-align:center;
  }
  .feature{
    padding:8px;
  }
  .feature-num{
    font-size:28px;
    font-weight:800;
    color:var(--primary);
    margin-bottom:6px;
  }
  .feature-text{
    font-size:14px;
    color:var(--text-light);
  }
  /* Footer */
  footer{
    background:#fff;
    border-top:1px solid var(--border);
    padding:28px 0;
    text-align:center;
    color:var(--text-light);
    font-size:13px;
  }
  footer a{
    color:var(--primary);
    text-decoration:none;
  }
  footer .footer-links{
    margin-bottom:10px;
    display:flex;
    flex-wrap:wrap;
    justify-content:center;
    gap:6px 14px;
  }
  footer .footer-links a{
    color:var(--text-light);
  }
  footer .footer-links a:hover{
    color:var(--primary);
  }
  /* Section heading (SEO blocks) */
  .section-h2{
    font-size:26px;
    font-weight:800;
    color:var(--text);
    text-align:center;
    letter-spacing:-0.5px;
    margin-bottom:8px;
  }
  .section-h2 .en{
    display:block;
    font-size:12px;
    color:var(--text-light);
    letter-spacing:2px;
    text-transform:uppercase;
    font-weight:600;
    margin-bottom:6px;
  }
  .section-sub{
    font-size:14px;
    color:var(--text-light);
    text-align:center;
    margin-bottom:28px;
  }
  /* Site intro */
  .site-intro{
    padding:24px 0 8px;
  }
  .intro-card{
    background:var(--card);
    border:1px solid var(--border);
    border-radius:var(--radius);
    padding:36px 32px;
    box-shadow:var(--shadow);
  }
  .intro-text{
    font-size:15px;
    line-height:1.9;
    color:var(--text);
  }
  .intro-text strong{
    color:var(--primary);
    font-weight:600;
  }
  /* Use cases */
  .use-cases{
    padding:32px 0;
  }
  .cases-grid{
    display:grid;
    grid-template-columns:repeat(auto-fit,minmax(280px,1fr));
    gap:20px;
  }
  .case-card{
    background:var(--card);
    border:1px solid var(--border);
    border-radius:var(--radius);
    padding:24px 22px;
    box-shadow:var(--shadow);
    transition:all 0.3s cubic-bezier(0.4,0,0.2,1);
  }
  .case-card:hover{
    transform:translateY(-3px);
    border-color:var(--primary);
    box-shadow:var(--shadow-hover);
  }
  .case-icon{
    font-size:28px;
    margin-bottom:10px;
    line-height:1;
  }
  .case-title{
    font-size:17px;
    font-weight:700;
    color:var(--text);
    margin-bottom:8px;
  }
  .case-desc{
    font-size:14px;
    color:var(--text-light);
    line-height:1.7;
  }
  .case-desc a{
    color:var(--primary);
    font-weight:600;
    text-decoration:none;
  }
  .case-desc a:hover{text-decoration:underline}
  /* Featured tools (reuses .tool-card) */
  .featured-tools{
    padding:32px 0;
  }
  .featured-grid{
    display:grid;
    grid-template-columns:repeat(auto-fit,minmax(240px,1fr));
    gap:20px;
  }
  /* FAQ */
  .faq{
    padding:32px 0 48px;
  }
  .faq-list{
    max-width:820px;
    margin:0 auto;
  }
  .faq-item{
    background:var(--card);
    border:1px solid var(--border);
    border-radius:12px;
    margin-bottom:12px;
    overflow:hidden;
    transition:border-color 0.2s ease;
  }
  .faq-item[open]{
    border-color:var(--primary);
  }
  .faq-item summary{
    padding:18px 22px;
    font-size:15px;
    font-weight:600;
    color:var(--text);
    cursor:pointer;
    list-style:none;
    display:flex;
    justify-content:space-between;
    align-items:center;
    gap:12px;
  }
  .faq-item summary::-webkit-details-marker{display:none}
  .faq-item summary::after{
    content:"+";
    font-size:20px;
    color:var(--primary);
    font-weight:700;
    flex-shrink:0;
    line-height:1;
  }
  .faq-item[open] summary::after{
    content:"−";
  }
  .faq-answer{
    padding:0 22px 18px;
    font-size:14px;
    color:var(--text-light);
    line-height:1.75;
  }
  .faq-answer a{
    color:var(--primary);
    font-weight:600;
    text-decoration:none;
  }
  .faq-answer a:hover{text-decoration:underline}
  @media(max-width:600px){
    h1{font-size:32px}
    .tagline{font-size:15px}
    .tools-section{padding:36px 0 24px}
    .tool-card{padding:24px 20px}
    .section-h2{font-size:22px}
    .intro-card{padding:24px 20px}
    .intro-text{font-size:14px}
    .faq-item summary{padding:16px 18px;font-size:14px}
    .faq-answer{padding:0 18px 16px;font-size:13px}
  }
  /* ===== 移动端专项优化 (<640px) ===== */
  @media(max-width:640px){
    /* Hero 紧凑化 */
    .hero-bar{padding:24px 14px 22px}
    .hero-icon{font-size:2.6rem}
    .hero-text h1{font-size:2rem;line-height:1.15}
    .hero-text .tagline{font-size:.92rem}
    .badges{gap:6px;margin-top:14px}
    .badge{font-size:11px;padding:4px 10px}
    /* 搜索框 */
    .search-wrap input{padding:13px 42px 13px 16px;font-size:16px}
    #search-clear{width:30px;height:30px}
    /* 工具卡紧凑化 */
    .tool-card{padding:18px 14px;min-height:44px}
    .tool-card:active{transform:translateY(-1px) scale(.99)}
    .tool-icon{width:38px;height:38px;font-size:18px}
    .tool-title{font-size:15px}
    .tool-desc{font-size:12.5px;line-height:1.5}
    .tool-link{font-size:12px;padding:6px 12px;min-height:32px}
    /* 分类标题 */
    .cat-header h2{font-size:17px}
    .cat-icon{font-size:20px}
    .cat-count{font-size:11px;padding:2px 8px}
    /* 容器内边距 */
    .container{padding:0 14px}
    /* 信任徽章 2x2 布局 */
    .badges{display:grid;grid-template-columns:1fr 1fr;justify-items:center;gap:6px}
    .badge{width:100%;justify-content:center}
  }
  @media(max-width:380px){
    /* 极小屏（iPhone SE 等）进一步紧凑 */
    .hero-text h1{font-size:1.7rem}
    .hero-icon{font-size:2.2rem}
    .tool-card{padding:14px 12px}
    .tool-title{font-size:14px}
    .container{padding:0 12px}
  }
.adsbygoogle{max-width:100%;overflow:hidden}
.adsbygoogle>div{max-width:100%!important}

/* ===== 2026-09-01 夜间设计优化：信任条 / 天气栏 / Hero 分层 / 统一卡片语言 ===== */
/* 1) 信任数字条：hero 正下方，深底白字高对比（借鉴 NerdWallet 信任数字前置） */
.trust-strip{background:#17163a;color:#fff;padding:18px 0}
.trust-strip .trust-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;text-align:center}
.trust-item .trust-num{font-size:26px;font-weight:800;letter-spacing:-.5px;color:#fff;line-height:1.15}
.trust-item .trust-num em{font-style:normal;color:#a5b4fc}
.trust-item .trust-label{font-size:12.5px;color:rgba(255,255,255,.66);margin-top:3px}
@media(max-width:640px){
  .trust-strip{padding:14px 0}
  .trust-strip .trust-grid{grid-template-columns:repeat(2,1fr);gap:12px 8px}
  .trust-item .trust-num{font-size:21px}
  .trust-item .trust-label{font-size:11px}
}

/* 2) 天气栏紧凑化：单行为主、按钮迷你化 */
#weather-bar{max-width:1100px;margin:0 auto;border-radius:0 0 14px 14px;gap:8px;padding:7px 14px!important;font-size:12.5px!important}
#weather-bar button{border-radius:8px!important;padding:2px 8px!important;font-size:11px!important}

/* 3) 语言切换器：改为 hero 顶部栏流式布局，不再绝对定位 */
.hero-top{display:flex;justify-content:flex-end;margin-bottom:10px}
.hero-bar .lang-switcher{
  position:static;display:inline-flex;
  background:rgba(255,255,255,.12);
  padding:3px;border-radius:999px;
  border:1px solid rgba(255,255,255,.22);
}

/* 4) Hero 徽章分层：首个徽章实底高亮，其余弱化 */
.badges .badge:first-child{background:rgba(255,255,255,.92);color:var(--primary);border-color:transparent;box-shadow:0 2px 10px rgba(0,0,0,.12)}
.hero-text h1{letter-spacing:-1px}

/* 5) 站长日志统一卡片语言 */
.journal-list{display:flex;flex-direction:column;gap:12px}
.journal-item{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:14px 18px;box-shadow:var(--shadow-card);transition:all .25s var(--ease)}
.journal-item:hover{box-shadow:var(--shadow-hover);transform:translateY(-2px)}
.journal-item .journal-date{font-size:12px;color:var(--text-light);margin-bottom:4px;display:flex;align-items:center;gap:6px}
.journal-item .journal-date::before{content:"";width:7px;height:7px;border-radius:50%;background:#22c55e;display:inline-block}
.journal-item .journal-text{margin:0;font-size:14px;line-height:1.65;color:var(--text)}

/* 6) 统计区卡片感 */
.features .features-grid{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow-card);padding:28px 20px}
.feature{position:relative}
.feature+.feature::before{content:"";position:absolute;left:-16px;top:12%;height:76%;width:1px;background:var(--border)}
@media(max-width:640px){.feature+.feature::before{display:none}}

/* 7) FAQ 平滑展开 */
.faq-item .faq-answer{animation:faqSlide .28s var(--ease)}
@keyframes faqSlide{from{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:none}}

/* 8) 工具卡图标质感 + 热门卡强调 */
.tool-icon{transition:transform .25s var(--ease)}
.tool-card:hover .tool-icon{transform:scale(1.06)}
.popular-section .tool-card{border-top:3px solid var(--primary)}

/* 9) 找不到工具 CTA 融入整体 */
.suggest-card{background:linear-gradient(135deg,#eef2ff,#f5f3ff);border:1px solid #d8dcf0;border-radius:14px;padding:24px 28px;text-align:center}