:root{
  --yoo-bg:#FFFFFF;
  --yoo-text:#3C4043;
  --yoo-accent:#FFD700;
  --yoo-muted:#5F6368;
  --yoo-border:#E0E0E0;
  --yoo-radius:12px;
  --yoo-shadow-sm: 0 6px 18px rgba(0,0,0,.06);
  --yoo-shadow-md: 0 14px 40px rgba(0,0,0,.10);
  --yoo-surface: #FFFFFF;
  --yoo-surface-2: #FAFBFC;
}

/* 这里是整站基础排版与 Google 风留白 */
body{
  background:var(--yoo-bg);
  color:var(--yoo-text);
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", "PingFang SC", "Microsoft YaHei", sans-serif;
  line-height:1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.yoo-container{max-width:1120px;margin:0 auto;padding:0 24px;}
.yoo-header{position:sticky;top:0;background:rgba(255,255,255,.9);backdrop-filter:saturate(180%) blur(12px);border-bottom:1px solid var(--yoo-border);z-index:50;}
.yoo-header-inner{display:flex;align-items:center;justify-content:space-between;height:72px;gap:16px;}
.yoo-brand{font-weight:700;color:var(--yoo-text);text-decoration:none;letter-spacing:.2px;display:flex;align-items:baseline;gap:8px;}
.yoo-brand-main{font-size:36px;font-weight:800;letter-spacing:-.02em;}
.yoo-brand-sub{font-size:15px;color:var(--yoo-muted);font-weight:600;}

.yoo-nav{display:flex;align-items:center;gap:18px;flex-wrap:wrap;}
.yoo-nav a{color:var(--yoo-text);text-decoration:none;font-weight:600;font-size:14px;padding:10px 10px;border-radius:10px;}
.yoo-nav a:hover{background:#F6F8FA;}
/* 修复菜单黑点：WP 菜单使用 li/ul，需要重置 list-style */
.yoo-nav-list{display:flex;align-items:center;gap:18px;flex-wrap:wrap;list-style:none;margin:0;padding:0;}
.yoo-nav-list li{list-style:none;margin:0;padding:0;}
.yoo-nav-list a{display:inline-flex;}
/* 顶部导航最后一项（登录）做成轻量按钮感 */
.yoo-nav > a:last-child,
.yoo-nav li:last-child a{
  background:var(--yoo-surface);
  border:1px solid var(--yoo-border);
  box-shadow:0 4px 14px rgba(0,0,0,.06);
}
.yoo-nav > a:last-child:hover,
.yoo-nav li:last-child a:hover{
  border-color:#D6D6D6;
  box-shadow:0 10px 26px rgba(0,0,0,.10);
}

/* 这里是黄色 CTA 按钮样式 */
.yoo-btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:12px;padding:12px 18px;font-weight:800;text-decoration:none;border:1px solid transparent;transition:transform .12s ease, box-shadow .12s ease, background .12s ease, border-color .12s ease;white-space:nowrap;}
.yoo-btn-primary{background:var(--yoo-accent);color:#111;}
.yoo-btn-primary:hover{box-shadow:var(--yoo-shadow-md);transform:translateY(-1px);}
.yoo-btn-secondary{background:#fff;border-color:var(--yoo-border);color:var(--yoo-text);}
.yoo-btn-secondary:hover{box-shadow:var(--yoo-shadow-sm);transform:translateY(-1px);border-color:#D6D6D6;}

.yoo-hero{
  padding:92px 0 96px;
  text-align:center;
  background:linear-gradient(180deg,#FFFFFF 0%, #FCFCFD 100%);
}
.yoo-kicker{
  margin:0 0 12px;
  font-size:13px;
  color:var(--yoo-muted);
  font-weight:700;
}
.yoo-hero h1{
  font-size:64px;
  line-height:1.08;
  margin:0 0 16px;
  letter-spacing:-.02em;
}
.yoo-hero p{
  margin:0 auto 26px;
  color:var(--yoo-muted);
  max-width:760px;
  font-size:26px;
  line-height:1.45;
}
.yoo-hero-actions{display:flex;gap:12px;flex-wrap:wrap;justify-content:center;}
.yoo-hero-actions .yoo-btn{min-width:142px;}
.yoo-hero-note{margin:14px 0 0;color:var(--yoo-muted);font-size:13px;}

.yoo-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:16px;}
.yoo-card{
  border:1px solid var(--yoo-border);
  border-radius:var(--yoo-radius);
  padding:18px;
  background:var(--yoo-surface);
  box-shadow:0 1px 0 rgba(0,0,0,.02);
  transition:transform .14s ease, box-shadow .14s ease, border-color .14s ease;
}
.yoo-card:hover{box-shadow:var(--yoo-shadow-sm);transform:translateY(-2px);border-color:#D6D6D6;}
.yoo-card h3{margin:0 0 8px;font-size:18px;}
.yoo-card p{margin:0;color:var(--yoo-muted);font-size:14px;}
.yoo-card-link{display:inline-flex;gap:6px;align-items:center;margin-top:12px;color:var(--yoo-text);text-decoration:none;font-weight:700;font-size:14px;}
.yoo-card-link:hover{color:#111;}
.yoo-card-icon{
  width:34px;height:34px;border-radius:10px;
  display:inline-flex;align-items:center;justify-content:center;
  background:rgba(255,215,0,.18);
  color:#8C7600;font-weight:900;font-size:16px;
  margin-bottom:12px;
}

.yoo-section{padding:44px 0;}
.yoo-section.yoo-section-muted{background:var(--yoo-surface-2);border-top:1px solid var(--yoo-border);border-bottom:1px solid var(--yoo-border);}
.yoo-section-title{display:flex;align-items:flex-end;justify-content:space-between;gap:12px;margin:0 0 14px;}
.yoo-section-title h2{margin:0;font-size:48px;letter-spacing:-.02em;}
.yoo-section-center{text-align:center;}
.yoo-section-center .yoo-section-title{justify-content:center;}
.yoo-section-subtitle{max-width:760px;margin:0 auto 26px;color:var(--yoo-muted);font-size:24px;}
.yoo-section-title .yoo-link{font-weight:700;text-decoration:none;color:var(--yoo-text);border-bottom:2px solid transparent;}
.yoo-section-title .yoo-link:hover{border-bottom-color:var(--yoo-accent);}

.yoo-why-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:34px;}
.yoo-why-item{text-align:center;max-width:320px;margin:0 auto;}
.yoo-why-dot{
  width:52px;height:52px;border-radius:50%;
  margin:0 auto 14px;
  background:var(--yoo-accent);
  box-shadow:0 10px 22px rgba(255,215,0,.28);
}
.yoo-why-item h3{margin:0 0 10px;font-size:22px;line-height:1.4;letter-spacing:-.01em;}
.yoo-why-item p{margin:0 auto;color:var(--yoo-muted);font-size:16px;line-height:1.95;max-width:280px;}

.yoo-cta-block{padding:62px 0 74px;text-align:center;}
.yoo-cta-block h2{margin:0 0 8px;font-size:52px;letter-spacing:-.02em;}
.yoo-cta-block p{margin:0 0 22px;color:var(--yoo-muted);font-size:24px;}

.yoo-footer{border-top:1px solid var(--yoo-border);padding:36px 0;margin-top:40px;}
.yoo-footer-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.yoo-footer h4{margin:0 0 10px;font-size:16px;letter-spacing:-.01em;}
.yoo-footer a{display:block;color:var(--yoo-muted);text-decoration:none;padding:6px 0;font-size:14px;}
.yoo-footer a:hover{color:var(--yoo-text);}
.yoo-footer-contact{margin-top:10px;border-top:1px solid var(--yoo-border);padding-top:10px;color:var(--yoo-muted);font-size:13px;}
.yoo-footer-bottom{margin-top:22px;padding-top:14px;border-top:1px solid #ECEFF1;color:var(--yoo-muted);font-size:12px;display:flex;gap:12px;flex-wrap:wrap;justify-content:space-between;}

@media (max-width: 860px){
  .yoo-hero{padding:72px 0 76px;}
  .yoo-hero h1{font-size:42px;}
  .yoo-hero p{font-size:20px;}
  .yoo-section-title h2{font-size:36px;}
  .yoo-section-subtitle{font-size:19px;}
  .yoo-why-grid{grid-template-columns:1fr;gap:22px;}
  .yoo-why-item{max-width:520px;}
  .yoo-why-item h3{font-size:20px;}
  .yoo-why-item p{font-size:15px;}
  .yoo-cta-block h2{font-size:38px;}
  .yoo-cta-block p{font-size:18px;}
  .yoo-footer-grid{grid-template-columns:repeat(2,1fr);}
  .yoo-page-header h1{font-size:34px;}
  .yoo-page-header p{font-size:16px;}
}

@media (max-width: 520px){
  .yoo-header-inner{height:auto;padding:14px 0;align-items:flex-start;}
  .yoo-nav{gap:8px;}
  .yoo-nav a{padding:8px 10px;}
  .yoo-footer-grid{grid-template-columns:1fr;}
  .yoo-container{padding:0 18px;}
  .yoo-hero h1{font-size:34px;}
  .yoo-hero p{font-size:18px;}
  .yoo-section-title h2{font-size:30px;}
  .yoo-section-subtitle{font-size:17px;}
  .yoo-cta-block h2{font-size:32px;}
  .yoo-brand-main{font-size:30px;}
  .yoo-brand-sub{font-size:13px;}
  .yoo-page{padding:32px 0 52px;}
  .yoo-page-header h1{font-size:30px;}
  .yoo-page-header p{font-size:15px;}
}

/* 内页通用：页头与正文区 */
.yoo-page{padding:42px 0 62px;}
.yoo-page-header{margin:0 0 24px;}
.yoo-page-header h1{margin:0 0 8px;font-size:42px;line-height:1.15;letter-spacing:-.02em;}
.yoo-page-header p{margin:0;color:var(--yoo-muted);max-width:780px;font-size:17px;line-height:1.55;}
.yoo-page-subhead{display:flex;align-items:center;gap:10px;color:var(--yoo-muted);font-size:12px;font-weight:800;letter-spacing:.12em;text-transform:uppercase;margin:0 0 8px;}
.yoo-page-subhead:before{content:"";width:24px;height:6px;border-radius:99px;background:var(--yoo-accent);}
.yoo-meta{display:flex;flex-wrap:wrap;gap:10px;margin:0 0 20px;}
.yoo-meta span{font-size:13px;color:var(--yoo-muted);padding:6px 10px;border:1px solid var(--yoo-border);border-radius:999px;background:#FAFBFC;}
.yoo-prose{max-width:760px;}
.yoo-prose :where(p,ul,ol){margin:0 0 14px;}
.yoo-prose :where(h2,h3){margin:24px 0 10px;}
.yoo-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:20px;align-items:center;}
.yoo-listing{display:grid;grid-template-columns:repeat(12,minmax(0,1fr));gap:16px;}
.yoo-card-head{display:flex;align-items:flex-start;justify-content:space-between;gap:10px;margin-bottom:8px;}
.yoo-badge{display:inline-flex;align-items:center;padding:6px 10px;border-radius:999px;font-size:12px;font-weight:700;border:1px solid #E6E6E6;background:#FFFDF0;color:#7A6900;}
.yoo-card-meta{margin-top:10px;font-size:13px;color:var(--yoo-muted);}
.yoo-empty{padding:28px;}

/* 这里是工具详情页「未登录」锁定提示区块 */
.yoo-locked{border:1px dashed var(--yoo-border);border-radius:var(--yoo-radius);padding:20px;background:#FAFBFC;margin:20px 0;}
.yoo-locked h2{margin:0 0 8px;font-size:18px;}
.yoo-locked p{margin:0 0 14px;color:var(--yoo-muted);font-size:14px;}

.yoo-pagination{margin-top:28px;display:flex;justify-content:center;gap:8px;flex-wrap:wrap;}
.yoo-pagination a,.yoo-pagination span.page-numbers{display:inline-flex;align-items:center;padding:10px 14px;border-radius:10px;border:1px solid var(--yoo-border);text-decoration:none;color:var(--yoo-text);font-weight:600;font-size:14px;background:#fff;}
.yoo-pagination a:hover{box-shadow:0 6px 16px rgba(0,0,0,.08);}
.yoo-pagination span.page-numbers.current{background:var(--yoo-accent);border-color:transparent;color:#111;}

/* ========== 登录 / 注册页（Google 风卡片） ========== */
.yoo-auth-page{padding:36px 0 56px;}
.yoo-auth-grid{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);gap:22px;align-items:start;}
.yoo-auth-panel{border:1px solid var(--yoo-border);border-radius:var(--yoo-radius);padding:24px;background:#fff;box-shadow:0 10px 30px rgba(0,0,0,.06);}
.yoo-auth-kicker{margin:0 0 8px;font-size:12px;letter-spacing:.12em;text-transform:uppercase;color:var(--yoo-muted);font-weight:800;}
.yoo-auth-title{margin:0 0 8px;font-size:26px;line-height:1.2;}
.yoo-auth-lead{margin:0 0 18px;color:var(--yoo-muted);font-size:15px;}
.yoo-auth-footer{margin-top:16px;}
.yoo-muted-inline{color:var(--yoo-muted);font-size:14px;}

.yoo-auth-aside{border-radius:var(--yoo-radius);background:linear-gradient(160deg,#FAFBFC 0%, #FFF9D6 100%);border:1px solid var(--yoo-border);padding:22px;}
.yoo-auth-aside-inner h2{margin:0 0 10px;font-size:16px;}
.yoo-list{margin:0;padding-left:18px;color:var(--yoo-muted);font-size:14px;}
.yoo-list li{margin:8px 0;}
.yoo-aside-note{margin:14px 0 0;font-size:13px;color:var(--yoo-muted);}
.yoo-inline-link{color:var(--yoo-text);font-weight:700;text-decoration:underline;text-decoration-thickness:2px;text-underline-offset:3px;}
.yoo-inline-link:hover{text-decoration-color:var(--yoo-accent);}

.yoo-form{display:grid;gap:14px;}
.yoo-field{display:grid;gap:6px;}
.yoo-label{font-size:13px;font-weight:700;color:var(--yoo-text);}
.yoo-input{width:100%;max-width:520px;border:1px solid var(--yoo-border);border-radius:10px;padding:12px 12px;font-size:15px;outline:none;background:#fff;}
.yoo-input:focus{box-shadow:0 0 0 3px rgba(255,215,0,.35);border-color:#E6C200;}
.yoo-check{display:flex;align-items:center;gap:10px;font-size:14px;color:var(--yoo-muted);user-select:none;}
.yoo-btn-block{width:100%;max-width:520px;}
.yoo-hp{position:absolute;left:-9999px;opacity:0;height:0;width:0;}

.yoo-alert{border-radius:12px;padding:12px 14px;font-size:14px;margin:0 0 14px;line-height:1.5;}
.yoo-alert-success{border:1px solid #CDE9C8;background:#F3FBF0;color:#1E5C14;}
.yoo-alert-error{border:1px solid #F1C7C7;background:#FFF5F5;color:#8A1F1F;}

/* ========== 受限工具：会员门槛 ========== */
.yoo-member-gate{position:relative;padding-top:22px;}
.yoo-member-gate-badge{position:absolute;top:-10px;left:16px;background:var(--yoo-accent);color:#111;font-weight:900;font-size:12px;padding:6px 10px;border-radius:999px;box-shadow:0 8px 18px rgba(0,0,0,.10);}
.yoo-member-gate-lead{margin-top:6px;}
.yoo-member-gate-list{margin:12px 0 0;padding-left:18px;color:var(--yoo-muted);font-size:14px;}
.yoo-member-gate-list li{margin:8px 0;}
.yoo-member-gate-actions{margin-top:14px;}
.yoo-member-gate-hint{margin:12px 0 0;font-size:13px;color:var(--yoo-muted);}

/* ========== 会员中心 ========== */
.yoo-member-dash{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;}
.yoo-member-card{}
.yoo-member-card-title{margin:0 0 10px;font-size:16px;}
.yoo-dl{display:grid;grid-template-columns:120px 1fr;gap:8px 12px;margin:0;font-size:14px;}
.yoo-dl dt{color:var(--yoo-muted);margin:0;}
.yoo-dl dd{margin:0;font-weight:700;}
.yoo-member-links{list-style:none;margin:0;padding:0;display:grid;gap:10px;}
.yoo-member-links a{font-weight:700;}

@media (max-width: 900px){
  .yoo-auth-grid{grid-template-columns:1fr;}
  .yoo-member-dash{grid-template-columns:1fr;}
}

/* ========== 字体去加粗（按你的要求全站不加粗） ========== */
h1,h2,h3,h4,h5,h6,strong,b{
  font-weight:400;
}

.yoo-brand-main,
.yoo-brand-sub,
.yoo-nav a,
.yoo-btn,
.yoo-kicker,
.yoo-card-link,
.yoo-section-title .yoo-link,
.yoo-page-subhead,
.yoo-badge,
.yoo-auth-kicker,
.yoo-label,
.yoo-member-links a{
  font-weight:400 !important;
}

/* ========== 舒展版排版优化（降低拥挤感） ========== */
body{
  line-height:1.9;
  letter-spacing:.02em;
}

.yoo-container{
  max-width:1280px;
  padding:0 40px;
}

.yoo-header-inner{
  height:86px;
}

.yoo-nav{
  gap:26px;
}

.yoo-nav a{
  font-size:15px;
  padding:12px 12px;
}

.yoo-hero{
  padding:138px 0 150px;
}

.yoo-hero h1{
  font-size:62px;
  line-height:1.22;
  margin-bottom:24px;
}

.yoo-hero p{
  max-width:920px;
  font-size:18px;
  line-height:1.95;
  margin-bottom:44px;
}

.yoo-hero-actions{
  gap:16px;
}

.yoo-btn{
  padding:14px 24px;
}

.yoo-section{
  padding:112px 0;
}

.yoo-section-title{
  margin-bottom:28px;
}

.yoo-section-title h2{
  font-size:54px;
  line-height:1.25;
}

.yoo-section-subtitle{
  max-width:920px;
  margin-bottom:58px;
  font-size:18px;
  line-height:1.9;
}

.yoo-grid,
.yoo-listing{
  gap:32px;
}

.yoo-card{
  padding:30px;
}

.yoo-card h3{
  font-size:24px;
  line-height:1.45;
  margin-bottom:16px;
}

.yoo-card p{
  font-size:17px;
  line-height:1.9;
}

.yoo-card-link{
  margin-top:18px;
  font-size:15px;
}

.yoo-page{
  padding:86px 0 118px;
}

.yoo-page-header{
  margin-bottom:40px;
}

.yoo-page-header h1{
  font-size:56px;
  line-height:1.22;
  margin-bottom:18px;
}

.yoo-page-header p{
  max-width:900px;
  font-size:18px;
  line-height:1.92;
}

.yoo-prose{
  max-width:860px;
}

.yoo-prose :where(p,ul,ol){
  margin-bottom:26px;
  line-height:1.95;
}

.yoo-footer{
  margin-top:94px;
  padding:76px 0;
}

.yoo-footer-grid{
  gap:34px;
}

.yoo-footer-col{
  border:1px solid var(--yoo-border);
  border-radius:12px;
  background:#fff;
  padding:18px 18px 14px;
  box-shadow:0 6px 20px rgba(0,0,0,.04);
  transition:transform .16s ease, box-shadow .16s ease, border-color .16s ease;
}

.yoo-footer-col:hover{
  transform:translateY(-2px);
  box-shadow:0 12px 28px rgba(0,0,0,.08);
  border-color:#D9DEE3;
}

.yoo-footer h4{
  font-size:20px;
  margin-bottom:14px;
}

.yoo-footer a{
  font-size:16px;
  line-height:1.85;
  border-radius:8px;
  padding:6px 8px;
  margin:0 -8px;
}

.yoo-footer-bottom{
  margin-top:44px;
  padding-top:26px;
  font-size:14px;
}

@media (max-width: 900px){
  .yoo-container{padding:0 24px;}
  .yoo-hero{padding:98px 0 108px;}
  .yoo-hero h1{font-size:48px;}
  .yoo-hero p{font-size:16px;}
  .yoo-section{padding:78px 0;}
  .yoo-section-title h2{font-size:40px;}
  .yoo-section-subtitle{font-size:16px;}
  .yoo-page{padding:66px 0 86px;}
  .yoo-page-header h1{font-size:42px;}
  .yoo-page-header p{font-size:16px;}
  .yoo-card h3{font-size:21px;}
  .yoo-card p{font-size:16px;}
}

@media (max-width: 520px){
  .yoo-container{padding:0 18px;}
  .yoo-header-inner{height:auto;padding:16px 0;}
  .yoo-nav{gap:12px;}
  .yoo-nav a{font-size:14px;padding:9px 10px;}
  .yoo-hero{padding:78px 0 88px;}
  .yoo-hero h1{font-size:38px;}
  .yoo-hero p{font-size:15px;line-height:1.85;}
  .yoo-section{padding:62px 0;}
  .yoo-section-title h2{font-size:34px;}
  .yoo-section-subtitle{font-size:15px;margin-bottom:30px;}
  .yoo-grid,.yoo-listing{gap:16px;}
  .yoo-card{padding:20px;}
  .yoo-card h3{font-size:19px;}
  .yoo-card p{font-size:15px;}
  .yoo-page{padding:52px 0 66px;}
  .yoo-page-header h1{font-size:36px;}
  .yoo-page-header p{font-size:15px;}
}

/* ========== 交互升级：悬停统一浅黄色 ========== */
:root{
  --yoo-accent-soft:#FFF6BF;
}

.yoo-btn-primary:hover,
.yoo-btn-secondary:hover,
.yoo-nav a:hover,
.yoo-pagination a:hover,
.yoo-link:hover,
.yoo-card-link:hover,
.yoo-inline-link:hover,
.yoo-footer a:hover,
button:hover,
input[type="submit"]:hover,
input[type="button"]:hover{
  background:var(--yoo-accent-soft) !important;
}

.yoo-link:hover,
.yoo-card-link:hover,
.yoo-inline-link:hover{
  border-radius:8px;
  padding-left:6px;
  padding-right:6px;
}