/* 在线工具箱：Bootstrap 5 之上的一层自定义样式 */

:root{
  --site-primary:#16baaa;
  --site-primary-dark:#12a294;
  --site-dark:#23292e;
  --site-header-h:56px;
  --site-sidebar-w:220px;
}

body{background:#f5f5f5;font-family:system-ui,-apple-system,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif}

/* ---------- 主题色：把 Bootstrap 默认蓝换成青绿 ---------- */
.btn-primary{--bs-btn-bg:var(--site-primary);--bs-btn-border-color:var(--site-primary);--bs-btn-hover-bg:var(--site-primary-dark);--bs-btn-hover-border-color:var(--site-primary-dark);--bs-btn-active-bg:var(--site-primary-dark);--bs-btn-active-border-color:var(--site-primary-dark);--bs-btn-disabled-bg:var(--site-primary);--bs-btn-disabled-border-color:var(--site-primary);--bs-btn-focus-shadow-rgb:22,186,170}
.btn-outline-primary{--bs-btn-color:var(--site-primary);--bs-btn-border-color:var(--site-primary);--bs-btn-hover-bg:var(--site-primary);--bs-btn-hover-border-color:var(--site-primary);--bs-btn-active-bg:var(--site-primary);--bs-btn-active-border-color:var(--site-primary);--bs-btn-focus-shadow-rgb:22,186,170}
.text-primary{color:var(--site-primary)!important}
.form-control:focus,.form-select:focus{border-color:#8fd9d2;box-shadow:0 0 0 .25rem rgba(22,186,170,.18)}
.form-check-input:checked{background-color:var(--site-primary);border-color:var(--site-primary)}
.breadcrumb{--bs-breadcrumb-divider-color:#adb5bd;--bs-breadcrumb-item-active-color:#6c757d;margin-bottom:0;font-size:.875rem}

/* ---------- 顶栏 ---------- */
.site-header{min-height:var(--site-header-h)}
.site-brand{color:var(--site-primary)!important;font-weight:700}
.site-top-link{padding:.375rem .75rem;border-radius:.25rem;color:rgba(255,255,255,.75);font-size:.875rem;text-decoration:none}
.site-top-link:hover,.site-top-link.active{color:#fff;background:rgba(255,255,255,.1)}

/* ---------- 布局：侧栏 + 主区 ---------- */
.site-layout{display:flex;align-items:stretch}
.site-sidebar{--bs-offcanvas-width:240px;--bs-offcanvas-color:#adb5bd;background:var(--site-dark)}
.site-sidebar .offcanvas-header{border-bottom:1px solid rgba(255,255,255,.08)}
.site-sidebar .offcanvas-title{color:#fff;font-size:1rem;font-weight:600}
.site-nav-wrap{background:var(--site-dark);min-height:100%}
.site-main{flex:1 1 auto;min-width:0;padding:1rem}
@media (min-width:992px){
  /* lg 以上侧栏常驻（Bootstrap 的 offcanvas-lg 此时已变成普通元素） */
  .site-sidebar{display:flex;flex:0 0 var(--site-sidebar-w);flex-direction:column;width:var(--site-sidebar-w);position:sticky;top:var(--site-header-h);align-self:flex-start;height:calc(100vh - var(--site-header-h));overflow-x:hidden;overflow-y:auto}
  .site-sidebar .offcanvas-body{flex:1 1 auto;flex-direction:column}
  .site-nav-wrap{flex:1 1 auto}
}
/* 锚点跳转别被吸顶顶栏挡住 */
[id]{scroll-margin-top:calc(var(--site-header-h) + .75rem)}

/* ---------- 左侧菜单：一级=分类，二级=工具 ---------- */
.site-nav{padding:.375rem 0}
.site-nav-group + .site-nav-group{border-top:1px solid rgba(255,255,255,.07)}

/* 一级：图标 + 加粗标题 + 折叠箭头（折叠交给 Bootstrap collapse） */
.site-nav-hd{display:flex;align-items:center;width:100%;padding:.8125rem 1rem;border:0;background:none;color:#fff;font:inherit;font-size:.875rem;font-weight:600;text-align:left;cursor:pointer}
.site-nav-hd:hover{background:rgba(255,255,255,.05)}
.site-nav-ico{flex:none;margin-right:.5rem;font-size:1.0625rem;color:var(--site-primary)}
.site-nav-caret{flex:none;margin-left:auto;font-size:1rem;color:#8b959e;transition:transform .2s}
.site-nav-hd[aria-expanded="false"] .site-nav-caret{transform:rotate(-90deg)}

/* 二级：缩进 + 竖线 + 小圆点 */
.site-nav-list{position:relative;margin:0;padding:0 0 .4375rem;list-style:none}
.site-nav-list:before{content:"";position:absolute;left:1.6875rem;top:0;bottom:.5625rem;width:1px;background:rgba(255,255,255,.1)}
.site-nav-list a{position:relative;display:block;padding:.5rem .875rem .5rem 2.375rem;color:#9fa9b2;font-size:.8125rem;line-height:1.5;text-decoration:none;transition:background .15s,color .15s}
.site-nav-list a:after{content:"";position:absolute;left:1.5rem;top:50%;width:7px;height:7px;margin-top:-3px;border-radius:50%;background:#5d6871;transition:background .15s}
.site-nav-list a:hover{color:#fff;background:rgba(255,255,255,.05)}
.site-nav-list a:hover:after{background:var(--site-primary)}
.site-nav-list a.is-active{color:#fff;background:rgba(22,186,170,.16)}
.site-nav-list a.is-active:before{content:"";position:absolute;left:0;top:0;bottom:0;width:2px;background:var(--site-primary)}
.site-nav-list a.is-active:after{background:var(--site-primary)}

/* ---------- 卡片 ---------- */
.card-header{background:#eef1f5;border-bottom:1px solid #e2e6ed;color:#333;font-weight:600}

/* 宫格卡片（首页 / 同类工具）：图标只作展示，工具名才是链接 */
.tool-card{height:100%}
.tool-card .card-body{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:1.375rem .625rem;text-align:center}
.tool-icon{display:block;margin-bottom:.5rem;font-size:2.125rem;line-height:1;color:var(--site-primary)}
.tool-name{display:block;width:100%;padding:.375rem .25rem;border-radius:.25rem;color:inherit;font-size:.9375rem;text-decoration:none;transition:background .15s,color .15s}
.tool-name:hover{color:var(--site-primary);background:#f0fbf9}

/* ---------- 工具内页 ---------- */
.mono,textarea.mono{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}
.sub{color:#8a9199;font-size:.8125rem}
.drop{display:block;padding:1.25rem;border:1px dashed #ced4da;border-radius:var(--bs-border-radius);background:#fafafa;color:#6c757d;text-align:center;cursor:pointer}
.drop:hover,.drop.hover{border-color:var(--site-primary);background:#f7fffd;color:var(--site-primary)}
.kv{display:flex;align-items:center;justify-content:space-between;gap:.75rem;padding:.5rem 0;border-bottom:1px dashed #e9ecef;font-size:.875rem}
.kv:last-child{border-bottom:0}
.kv-name{min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.kv-actions{display:flex;flex:none;align-items:center;gap:.5rem}

/* 结果区：默认 d-none，有结果时才出现 */
.site-result{animation:site-fade-in .18s ease-out}
@keyframes site-fade-in{from{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:none}}
@media (prefers-reduced-motion:reduce){.site-result{animation:none}}

/* ---------- 提示层：toast + 加载遮罩 ---------- */
.site-toast{z-index:1090}
.site-busy{position:fixed;inset:0;z-index:1080;display:flex;align-items:center;justify-content:center;background:rgba(255,255,255,.45)}
.site-busy-box{display:flex;align-items:center;gap:.5rem;padding:.75rem 1.25rem;border-radius:.375rem;background:rgba(33,37,41,.92);color:#fff;font-size:.875rem}

/* ---------- 404 ---------- */
.site-404-icon{display:block;margin-bottom:.75rem;font-size:2.75rem;line-height:1;color:#c9c9c9}

/* ---------- 小屏微调 ---------- */
@media (max-width:767.98px){
  .site-main{padding:.75rem}
  .tool-icon{font-size:1.875rem}
  .tool-name{font-size:.875rem}
}