:root{--wb-maxw:1320px;--wb-blue:#2563eb;--wb-purple:#7c3aed;--wb-ink:#0f172a;--wb-body:#1f2937;--wb-sub:#64748b;--wb-line:#e7eaf1;--wb-fs-base:16px;}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{margin:0;background:#f4f6f9;color:#1f2937;font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Segoe UI",Roboto,Helvetica,Arial,sans-serif;min-height:100vh;}
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.94);backdrop-filter:saturate(180%) blur(10px);-webkit-backdrop-filter:saturate(180%) blur(10px);border-bottom:1px solid var(--wb-line);box-shadow:0 1px 12px rgba(31,41,55,.04);overflow:visible;}
.site-header__inner{max-width:var(--wb-maxw);margin:0 auto;padding:12px 24px;display:flex;align-items:center;gap:20px;}
@media (max-width:560px){.site-header__inner{padding:9px 12px;gap:10px;}}
.site-header .brand{display:inline-flex;align-items:center;gap:10px;font-weight:800;font-size:21px;color:var(--wb-ink);text-decoration:none;white-space:nowrap;flex:0 0 auto;}
.site-header .brand .logo{width:34px;height:34px;border-radius:10px;background:linear-gradient(135deg,var(--wb-blue),var(--wb-purple));display:grid;place-items:center;color:#fff;font-size:18px;font-weight:900;box-shadow:0 4px 12px rgba(37,99,235,.35);}
.site-header .brand b{background:linear-gradient(135deg,var(--wb-blue),var(--wb-purple));-webkit-background-clip:text;background-clip:text;color:transparent;}
.site-nav{display:flex;align-items:center;gap:6px;flex:1 1 auto;overflow-x:auto;scrollbar-width:none;-webkit-overflow-scrolling:touch;position:relative;z-index:70;}
.site-nav::-webkit-scrollbar{display:none;}
.site-nav a{flex:0 0 auto;padding:9px 16px;border-radius:999px;font-size:15px;font-weight:600;color:#475569;text-decoration:none;white-space:nowrap;transition:.16s;}
.site-nav a:hover{color:var(--wb-blue);background:#eef2ff;}
.site-nav a.active{color:#fff;background:linear-gradient(135deg,var(--wb-blue),var(--wb-purple));box-shadow:0 4px 12px rgba(37,99,235,.3);}
@media (max-width:860px){.site-nav{-webkit-mask-image:linear-gradient(90deg,#000 88%,transparent 100%);mask-image:linear-gradient(90deg,#000 88%,transparent 100%);}}
.nav-more{position:relative;flex:0 0 auto;display:inline-flex;}
.nav-more__btn{flex:0 0 auto;display:inline-flex;align-items:center;gap:4px;padding:9px 14px;border-radius:999px;border:0;background:transparent;cursor:pointer;font:600 15px/1.6 inherit;color:#475569;white-space:nowrap;transition:.16s;}
.nav-more__btn:hover{color:var(--wb-blue);background:#eef2ff;}
.nav-more.is-open .nav-more__btn,.nav-more.is-current .nav-more__btn{color:var(--wb-blue);background:#eef2ff;}
.nav-more.is-current .nav-more__btn{color:#fff;background:linear-gradient(135deg,var(--wb-blue),var(--wb-purple));box-shadow:0 4px 12px rgba(37,99,235,.3);}
.nav-more__menu{position:absolute;top:calc(100% + 10px);right:0;min-width:168px;padding:6px;background:#fff;border:1px solid var(--wb-line);border-radius:14px;box-shadow:0 12px 32px rgba(15,23,42,.12);display:none;z-index:60;}
.nav-more.is-open .nav-more__menu{display:block;}
/* wb.js 的 initNav() 会把下拉菜单 append 到 document.body（顶栏有 backdrop-filter 会建层叠上下文，
   绝对定位的子元素浮不出头），所以 `.nav-more.is-open .nav-more__menu` 这种后代选择器永远匹配不到，
   必须同时有一条「菜单自身带 .is-open」的规则 —— wb.js 的 open() 会给 menu 加这个类。
   漏掉这条的表现就是：点「更多」按钮菜单永远不弹。 */
.nav-more__menu.is-open{display:block;}
.nav-more__menu a{display:block;padding:9px 12px;border-radius:9px;font-size:14.5px;font-weight:600;color:#334155;text-decoration:none;white-space:nowrap;transition:.14s;}
.nav-more__menu a:hover{background:#f1f5f9;color:var(--wb-blue);}
.nav-more__menu a.active{color:#fff;background:linear-gradient(135deg,var(--wb-blue),var(--wb-purple));}
.wb-footer{margin-top:44px;border-top:1px solid var(--wb-line);background:linear-gradient(180deg,#fbfcfe,#f6f8fc);padding:44px 0 0;color:var(--wb-sub);font-size:14.5px;line-height:1.8;font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Segoe UI",Roboto,Helvetica,Arial,sans-serif;}
.wb-footer__inner{max-width:var(--wb-maxw);margin:0 auto;padding:0 24px;display:grid;grid-template-columns:1.35fr 1fr 1fr;gap:36px;}
@media (max-width:900px){.wb-footer__inner{grid-template-columns:1fr 1fr;gap:28px;}}
@media (max-width:560px){.wb-footer{padding-top:32px;}.wb-footer__inner{grid-template-columns:1fr;gap:22px;padding:0 14px;}}
.wb-footer h4{margin:0 0 12px;font-size:15.5px;font-weight:800;color:var(--wb-ink);display:flex;align-items:center;gap:7px;}
.wb-footer h4::before{content:"";width:4px;height:15px;border-radius:2px;background:linear-gradient(180deg,var(--wb-blue),var(--wb-purple));}
.wb-footer p{margin:0 0 10px;}
.wb-footer a{color:var(--wb-sub);text-decoration:none;display:inline-block;padding:3px 0;transition:.16s;}
.wb-footer a:hover{color:var(--wb-blue);}
.wb-footer__tools{display:grid;grid-template-columns:1fr 1fr;gap:2px 14px;}
.wb-footer__bottom{max-width:var(--wb-maxw);margin:32px auto 0;padding:18px 24px calc(18px + env(safe-area-inset-bottom,0px));border-top:1px solid var(--wb-line);display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:8px;font-size:13.5px;color:#94a3b8;}
@media (max-width:560px){.wb-footer__bottom{padding-left:14px;padding-right:14px;justify-content:center;text-align:center;}}
.wb-icp{color:var(--wb-sub);text-decoration:none!important;white-space:nowrap;}
.wb-icp:hover{color:var(--wb-blue);}

/* ===== 页面内容容器 ===== */
.page{max-width:1080px;margin:0 auto;padding:30px 20px 10px;}
.page h1.qq-page-title{font-size:28px;font-weight:800;color:#0f172a;margin:0 0 6px;}
.page .qq-page-sub{color:#64748b;margin:0 0 22px;font-size:15px;}

/* ===== 框架替代样式（原 toolwa 框架类） ===== */
.toolwa-btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;height:52px;padding:0 22px;border:0;border-radius:12px;font-size:17px;font-weight:700;cursor:pointer;transition:.16s;white-space:nowrap;text-decoration:none;}
.toolwa-btn-primary{background:linear-gradient(135deg,#86C038,#6fae22);color:#fff;box-shadow:0 4px 12px rgba(134,192,56,.28);}
.toolwa-btn-primary:hover{filter:brightness(1.05);}
.toolwa-btn-default{background:#eef1f5;color:#475569;}
.toolwa-btn-default:hover{background:#e3e8ef;}
.toolwa-panel{background:#fff;border:1px solid #e7eaf1;border-radius:16px;margin-bottom:22px;overflow:hidden;box-shadow:0 6px 20px rgba(31,41,55,.04);}
.toolwa-panel-hd{font-size:17px;font-weight:800;color:#0f172a;padding:16px 20px;border-bottom:1px solid #eef1f5;background:#fbfcfe;}
.toolwa-panel-bd{padding:20px;}
.toolwa-section-title{font-size:16px;font-weight:800;color:#0f172a;margin:24px 0 14px;}
.qq-tags{display:flex;flex-wrap:wrap;gap:8px;margin:16px 0 4px;}
.qq-tag{display:inline-flex;align-items:center;gap:5px;font-size:13px;color:#52606d;background:#f1f5f9;border:1px solid #e3e8ef;border-radius:999px;padding:5px 12px;}
.qq-summary .qq-grade .lv{font-weight:800;padding:3px 12px;border-radius:999px;font-size:15px;align-self:center;}
.qq-grade .lv.common{color:#5c6677;background:#eef1f5;}
.qq-grade .lv.good{color:#2f9e44;background:#e7f7ec;}
.qq-grade .lv.rare{color:#1c7ed6;background:#e7f1fd;}
.qq-grade .lv.epic{color:#7048e8;background:#f0ebfd;}
.qq-grade .lv.legend{color:#e8590c;background:#fff0e0;}
.markdown-body{color:#475569;line-height:1.8;font-size:15px;}
.markdown-body h2{font-size:20px;color:#0f172a;margin:6px 0 12px;}
.markdown-body h3{font-size:16px;color:#1f2937;margin:18px 0 8px;}
.markdown-body ol,.markdown-body ul{margin:0 0 12px;padding-left:22px;}
.markdown-body li{margin:4px 0;}
@media (max-width:640px){.qq-summary{grid-template-columns:auto auto!important;}.qq-summary .qq-avatar{border-right:0;}}


/* ===== 聆·音 白噪音控制台 ===== */
.lt-page{max-width:1120px;margin:0 auto;padding:34px 20px 8px;}
.lt-hero{text-align:center;padding:10px 0 26px;}
.lt-hero__badge{display:inline-flex;align-items:center;gap:7px;padding:6px 15px;border-radius:999px;
  background:linear-gradient(135deg,#eef2ff,#f5f3ff);color:#4338ca;font-size:13px;font-weight:700;margin-bottom:14px;}
.lt-hero h1{margin:0;font-size:38px;font-weight:900;letter-spacing:-.5px;
  background:linear-gradient(135deg,#2563eb,#7c3aed);-webkit-background-clip:text;background-clip:text;color:transparent;}
.lt-hero p{margin:12px auto 0;max-width:620px;color:#64748b;font-size:15.5px;line-height:1.8;}

/* 控制台 */
.lt-panel{display:flex;flex-wrap:wrap;align-items:center;gap:18px;padding:16px 20px;background:#fff;
  border:1px solid #e7eaf1;border-radius:18px;box-shadow:0 8px 24px rgba(31,41,55,.05);margin-bottom:26px;}
.lt-panel__grp{display:flex;align-items:center;gap:10px;}
.lt-panel__lbl{font-size:13px;font-weight:700;color:#94a3b8;letter-spacing:.4px;white-space:nowrap;}
.lt-btn{display:inline-flex;align-items:center;justify-content:center;gap:7px;height:40px;padding:0 16px;border:1px solid #e3e8ef;
  background:#fff;border-radius:11px;font-size:14.5px;font-weight:700;color:#475569;cursor:pointer;transition:.15s;font-family:inherit;}
.lt-btn:hover{background:#f1f5f9;color:#0f172a;}
.lt-btn--mute.is-off{background:#fef2f2;border-color:#fecaca;color:#dc2626;}
.lt-btn--stop{color:#b91c1c;border-color:#fecaca;}
.lt-btn--stop:hover{background:#fef2f2;}
.lt-chips{display:inline-flex;background:#f1f5f9;border-radius:11px;padding:4px;gap:2px;}
.lt-chip{border:0;background:transparent;padding:7px 13px;border-radius:8px;font:700 13.5px/1.4 inherit;color:#64748b;cursor:pointer;transition:.15s;}
.lt-chip:hover{color:#2563eb;}
.lt-chip.on{background:#fff;color:#2563eb;box-shadow:0 1px 4px rgba(31,41,55,.14);}
.lt-count{display:inline-flex;align-items:center;justify-content:center;min-width:26px;height:26px;padding:0 8px;border-radius:999px;
  background:linear-gradient(135deg,#2563eb,#7c3aed);color:#fff;font-size:13px;font-weight:800;}
.lt-count.zero{background:#e2e8f0;color:#94a3b8;}
.lt-master{display:flex;align-items:center;gap:10px;flex:1 1 220px;min-width:180px;}
.lt-master input[type=range]{flex:1;min-width:110px;}
input[type=range]{-webkit-appearance:none;appearance:none;height:6px;border-radius:99px;background:#e2e8f0;outline:none;}
input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;appearance:none;width:18px;height:18px;border-radius:50%;
  background:#fff;border:3px solid #2563eb;box-shadow:0 2px 6px rgba(37,99,235,.35);cursor:pointer;}
input[type=range]::-moz-range-thumb{width:16px;height:16px;border-radius:50%;background:#fff;border:3px solid #2563eb;cursor:pointer;}

/* 音效卡片 */
.lt-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(168px,1fr));gap:16px;}
.lt-card{position:relative;background:#fff;border:1px solid #e7eaf1;border-radius:18px;overflow:hidden;
  transition:transform .18s, box-shadow .18s, border-color .18s;}
.lt-card:hover{transform:translateY(-3px);box-shadow:0 12px 26px rgba(31,41,55,.09);}
.lt-card.is-on{border-color:#c7d2fe;box-shadow:0 12px 28px rgba(99,102,241,.18);}
.lt-card.is-on::before{content:"";position:absolute;inset:0;border-radius:18px;pointer-events:none;
  background:linear-gradient(135deg,rgba(37,99,235,.07),rgba(124,58,237,.07));}
.lt-card__hit{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;
  padding:24px 14px 20px;cursor:pointer;text-align:center;width:100%;border:0;background:none;font-family:inherit;}
.lt-card__hit:focus-visible{outline:2px solid #2563eb;outline-offset:-3px;border-radius:18px;}
/* 图标着色：精灵图原图是**纯白线稿**，直接当背景铺在白卡片上等于隐形。
   改用 mask，让图标形状取自精灵图、颜色来自 currentColor；新增音效用内联 SVG，同样跟随 currentColor。 */
.lt-card__icon{width:60px;height:60px;color:#a3adbd;transition:color .18s, transform .18s;}
.lt-ic-sprite{
  -webkit-mask-image:url(images/icon-sprite.png);
          mask-image:url(images/icon-sprite.png);
  -webkit-mask-repeat:no-repeat;   mask-repeat:no-repeat;
  -webkit-mask-size:720px 60px;    mask-size:720px 60px;
  -webkit-mask-position:var(--p,0px) 0;  mask-position:var(--p,0px) 0;
  background-color:currentColor;
}
.lt-ic-svg{fill:none;stroke:currentColor;}
.lt-card:hover .lt-card__icon{color:#64748b;transform:translateY(-2px);}
.lt-card.is-on .lt-card__icon{color:#4f46e5;}
.lt-card__n{font-size:15.5px;font-weight:800;color:#0f172a;line-height:1.3;}
.lt-card__n small{display:block;margin-top:2px;font-size:11.5px;font-weight:600;color:#a1aab8;letter-spacing:.4px;}
.lt-card__eq{display:none;align-items:flex-end;gap:3px;height:16px;color:#2563eb;}
.lt-card.is-on .lt-card__eq{display:flex;}
.lt-eq i{width:3px;height:100%;background:currentColor;border-radius:2px;transform-origin:bottom;
  animation:ltEq .9s ease-in-out infinite;}
.lt-eq i:nth-child(1){animation-delay:-.45s;} .lt-eq i:nth-child(2){animation-delay:-.15s;}
.lt-eq i:nth-child(3){animation-delay:-.6s;}  .lt-eq i:nth-child(4){animation-delay:-.3s;}
@keyframes ltEq{0%,100%{transform:scaleY(.3);}50%{transform:scaleY(1);}}
.lt-card__vol{display:none;padding:0 16px 16px;position:relative;z-index:1;}
.lt-card.is-on .lt-card__vol{display:block;}
.lt-card__vol input[type=range]{width:100%;}

/* 说明 */
.lt-tips{margin-top:30px;}
.lt-note{display:flex;flex-wrap:wrap;gap:10px 26px;margin-top:14px;font-size:13.5px;color:#64748b;}
.lt-note b{color:#334155;}
.lt-toast{position:fixed;left:50%;bottom:34px;transform:translateX(-50%);background:rgba(15,23,42,.9);color:#fff;
  padding:11px 20px;border-radius:10px;font-size:14.5px;opacity:0;pointer-events:none;transition:opacity .2s;z-index:2000;}
.lt-toast.show{opacity:1;}
@media (max-width:640px){
  .lt-hero h1{font-size:30px;} .lt-page{padding-top:24px;}
  .lt-panel{gap:14px;padding:14px;}
  .lt-grid{grid-template-columns:repeat(auto-fill,minmax(140px,1fr));gap:12px;}
  .lt-card__hit{padding:18px 10px 16px;}
}


/* ===== 全站导航 · 分类面板（每页独立内联，不共用 css） ===== */
.site-header__inner { position: relative; }
.site-nav .nav-more__btn {
  display: inline-flex; align-items: center; gap: 6px;
  margin-left: 4px; padding: 7px 13px; border-radius: 999px;
  border: 1px solid var(--wb-blue); background: #fff; color: var(--wb-blue);
  font-size: 13.5px; font-weight: 500; cursor: pointer; white-space: nowrap;
  transition: background .15s, color .15s;
}
.site-nav .nav-more__btn:hover { background: #eef2ff; }
.site-nav .nav-more__btn svg { transition: transform .2s; }
.site-nav .nav-more__btn[aria-expanded="true"] svg { transform: rotate(180deg); }
.nav-mega {
  position: absolute; top: 100%; left: 0; right: 0; z-index: 60;
  background: #fff; border-top: 1px solid var(--wb-line);
  box-shadow: 0 14px 34px rgba(15,23,42,.10);
  display: none;
}
.nav-mega.is-open { display: block; }
.nav-mega__inner {
  max-width: var(--wb-maxw); margin: 0 auto; padding: 20px var(--page-pad-x) 24px;
  display: flex; flex-wrap: wrap; gap: 30px;
}
.nav-cat { min-width: 132px; }
.nav-cat h4 {
  margin: 0 0 10px; font-size: 13px; font-weight: 600; color: var(--wb-sub);
  letter-spacing: .02em;
}
.nav-cat a {
  display: block; padding: 7px 9px; border-radius: 8px;
  color: var(--wb-ink); font-size: 13.5px; text-decoration: none;
  transition: background .12s, color .12s;
}
.nav-cat a:hover { background: #eef2ff; color: var(--wb-blue); }
.nav-cat a.active { background: var(--wb-blue); color: #fff; }
.nav-cat__all {
  display: inline-block; margin-top: 10px; font-weight: 600; color: var(--wb-blue);
  text-decoration: none;
}
.nav-cat__all:hover { text-decoration: underline; }
.wb-toast {
  position: fixed; left: 50%; bottom: 28px; transform: translateX(-50%) translateY(10px);
  background: rgba(15,23,42,.92); color: #fff; padding: 10px 16px; border-radius: 10px;
  font-size: 13.5px; z-index: 999; opacity: 0; pointer-events: none;
  transition: opacity .2s, transform .2s; max-width: 86vw;
}
.wb-toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }
@media (max-width: 640px) {
  .nav-mega__inner { gap: 20px 18px; padding: 16px 14px 20px; }
  .nav-cat { min-width: 44%; }
}

/* ===== 2026-10-17 导航补丁（幂等：重复执行不会叠加）===== */
/* ① 收回按钮 flex：部分页面有全局 button{flex:1 1 0%}，会把导航按钮拉满 */
.site-nav .nav-more__btn { flex: 0 0 auto; width: auto; min-width: 0; }
/* ===== 全站导航 · 分类面板（每页独立内联，不共用 css） ===== */
.site-header__inner { position: relative; }
.site-nav .nav-more__btn {
  display: inline-flex; align-items: center; gap: 6px;
  /* 🔴 必须显式收回 flex：部分工具页 css 里有全局
     `button, .btn, .primary, .ghost { flex: 1 1 0% }`，
     会把「全部工具」按钮拉成 600px 宽的大横框（2026-10-17 修） */
  flex: 0 0 auto; width: auto; min-width: 0;
  margin-left: 4px; padding: 7px 13px; border-radius: 999px;
  border: 1px solid var(--wb-blue); background: #fff; color: var(--wb-blue);
  font-size: 13.5px; font-weight: 500; cursor: pointer; white-space: nowrap;
  transition: background .15s, color .15s;
}
.site-nav .nav-more__btn:hover { background: #eef2ff; }
.site-nav .nav-more__btn svg { transition: transform .2s; }
.site-nav .nav-more__btn[aria-expanded="true"] svg { transform: rotate(180deg); }
.nav-mega {
  position: absolute; top: 100%; left: 0; right: 0; z-index: 60;
  background: #fff; border-top: 1px solid var(--wb-line);
  box-shadow: 0 14px 34px rgba(15,23,42,.10);
  display: none;
}
.nav-mega.is-open { display: block; }
.nav-mega__inner {
  max-width: var(--wb-maxw); margin: 0 auto; padding: 20px var(--page-pad-x) 24px;
  display: flex; flex-wrap: wrap; gap: 30px;
}
.nav-cat { min-width: 132px; --cat-dot: var(--wb-blue); }
/* 分类色块：用 nth-child 而不是 data-cat —— 老页面的 nav 由旧 js 生成，
   没有 data-cat 属性，靠序号同样能上色（2026-10-17） */
.nav-mega__inner > .nav-cat:nth-child(1) { --cat-dot: #2563eb; }
.nav-mega__inner > .nav-cat:nth-child(2) { --cat-dot: #7c3aed; }
.nav-mega__inner > .nav-cat:nth-child(3) { --cat-dot: #d97706; }
.nav-mega__inner > .nav-cat:nth-child(4) { --cat-dot: #db2777; }
.nav-mega__inner > .nav-cat:nth-child(5) { --cat-dot: #059669; }
.nav-cat h4 {
  margin: 0 0 10px; font-size: 13px; font-weight: 600; color: var(--wb-sub);
  letter-spacing: .02em; display: flex; align-items: center; gap: 7px;
}
.nav-cat h4::before {
  content: ""; flex: 0 0 auto; width: 8px; height: 8px; border-radius: 3px;
  background: var(--cat-dot);
}
.nav-cat a {
  display: block; padding: 7px 9px; border-radius: 8px;
  color: var(--wb-ink); font-size: 13.5px; text-decoration: none;
  transition: background .12s, color .12s;
}
.nav-cat a:hover { background: #eef2ff; color: var(--wb-blue); }
.nav-cat a.active { background: var(--wb-blue); color: #fff; }
.nav-cat__all {
  display: inline-block; margin-top: 10px; font-weight: 600; color: var(--wb-blue);
  text-decoration: none;
}
.nav-cat__all:hover { text-decoration: underline; }
.wb-toast {
  position: fixed; left: 50%; bottom: 28px; transform: translateX(-50%) translateY(10px);
  background: rgba(15,23,42,.92); color: #fff; padding: 10px 16px; border-radius: 10px;
  font-size: 13.5px; z-index: 999; opacity: 0; pointer-events: none;
  transition: opacity .2s, transform .2s; max-width: 86vw;
}
.wb-toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }
@media (max-width: 640px) {
  .nav-mega__inner { gap: 20px 18px; padding: 16px 14px 20px; }
  .nav-cat { min-width: 44%; }
}

/* ===== 2026-10-17 面板高度补丁（幂等：重复执行不会叠加）===== */
/* ① 收回按钮 flex：部分页面有全局 button{flex:1 1 0%}，会把导航按钮拉满 */
.site-nav .nav-more__btn { flex: 0 0 auto; width: auto; min-width: 0; }

.nav-mega { max-height: calc(100vh - 56px); overflow-y: auto; -webkit-overflow-scrolling: touch; }