/* ============================================================
   声屿 Shengyu · 语音工作台 全局样式
   设计基调：主色蓝 #2f7bff / 页面背景 #f5f8ff / 卡片白底圆角
   ============================================================ */

/* ---------- 1. 色板变量与基础 ---------- */
:root{
  --blue:#2f7bff;
  --blue-deep:#1762ed;
  --accent:#1768ee;
  --bg:#f5f8ff;
  --card:#ffffff;
  --border:#e6eefb;
  --border-soft:#f0f5fd;
  --title:#12254f;
  --text:#49618f;
  --muted:#8ea3c8;
  --badge-bg:#eaf3ff;
  --active-bg:#edf4ff;
  --input-bg:#eef4fd;
  --green:#14a05f;
  --green-bg:#e5f9f0;
  --orange:#ff8a3d;
  --orange-bg:#ffefe2;
  --purple:#8b5cf6;
  --purple-bg:#f1ebfe;
  --yellow:#f5b544;
  --yellow-bg:#fdf3dd;
  --red:#f0524d;
  --red-bg:#fdeaea;
  --teal:#22c9a3;
  --teal-bg:#e2f8f2;
  --radius:12px;
  --shadow:0 2px 10px rgba(47,110,220,.06);
  --grad-btn:linear-gradient(135deg,#347cff,#1762ed);
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family:"Microsoft Yahei","PingFang SC",sans-serif;
  background:var(--bg);
  color:var(--text);
  font-size:14px;
  line-height:1.5;
}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{margin:0}
ul{margin:0;padding:0;list-style:none}
button{font-family:inherit}
img,svg{vertical-align:middle}
.ic{flex:none}
.hidden{display:none!important}
.mt{margin-top:16px}
::-webkit-scrollbar{width:8px;height:8px}
::-webkit-scrollbar-thumb{background:#d4e2f6;border-radius:4px}
::-webkit-scrollbar-track{background:transparent}

/* ---------- 2. 左侧边栏（190px 固定） ---------- */
.sidebar{
  position:fixed;left:0;top:0;bottom:0;width:190px;z-index:30;
  background:#fff;border-right:1px solid var(--border);
  display:flex;flex-direction:column;
}
.brand{display:flex;align-items:center;gap:10px;padding:18px 16px 14px}
.brand .logo-mark{
  width:34px;height:34px;border-radius:9px;flex:none;
  background:var(--grad-btn);color:#fff;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 4px 10px rgba(35,100,230,.28);
}
.brand-name{display:block;font-size:15px;font-weight:700;color:var(--title);line-height:1.2}
.brand-sub{display:block;font-size:10.5px;color:var(--muted);margin-top:2px}
.side-nav{padding:6px 12px;overflow-y:auto}
.side-link{
  display:flex;align-items:center;gap:10px;
  padding:10px 12px;margin-bottom:2px;border-radius:10px;
  color:var(--text);font-size:13.5px;transition:background .15s,color .15s;
}
.side-link:hover{background:#f4f8ff;color:var(--accent)}
.side-link.active{background:var(--active-bg);color:var(--accent);font-weight:600}
.side-pro{
  margin:0 12px 12px;padding:14px;border-radius:12px;
  background:linear-gradient(160deg,#f2f7ff,#e8f1ff);
  border:1px solid var(--border);
}
.side-pro .sp-h{display:flex;align-items:center;gap:6px;color:#d99a17;font-weight:700;font-size:13px}
.side-pro .sp-d{font-size:11px;color:var(--muted);margin:6px 0 10px}
.side-bottom{margin-top:auto}
.side-user{
  border-top:1px solid var(--border);padding:12px 14px;
  display:flex;align-items:center;gap:9px;
}
.side-user .su-name{
  flex:1;min-width:0;font-size:13px;color:var(--title);font-weight:600;
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
}
.side-user .icon-btn{width:26px;height:26px}

/* ---------- 3. 顶栏 ---------- */
.main{margin-left:190px;height:100vh;display:flex;flex-direction:column;overflow:hidden}
.topbar{
  position:sticky;top:0;z-index:20;height:56px;
  display:flex;align-items:center;gap:16px;padding:0 26px;
  background:rgba(255,255,255,.88);backdrop-filter:blur(8px);
  border-bottom:1px solid var(--border);
}
.top-search{
  width:340px;display:flex;align-items:center;gap:8px;
  background:var(--input-bg);border-radius:999px;padding:8px 16px;color:var(--muted);
}
.top-search input{
  flex:1;border:none;background:transparent;outline:none;
  font-size:12.5px;color:var(--title);font-family:inherit;
}
.top-right{margin-left:auto;display:flex;align-items:center;gap:18px}
.top-bell{position:relative;color:var(--text);display:inline-flex}
.top-bell .dot{
  position:absolute;top:-1px;right:-1px;width:8px;height:8px;
  border-radius:50%;background:var(--red);border:2px solid #fff;
}
.top-admin{
  display:inline-flex;align-items:center;gap:5px;font-size:12.5px;
  color:var(--accent);background:var(--badge-bg);
  padding:6px 12px;border-radius:999px;
}
.top-user{display:flex;align-items:center;gap:9px}
.top-user .tu-name{font-size:13px;color:var(--title);font-weight:600;line-height:1.2;text-align:right}
.top-user .tu-role{font-size:10.5px;color:var(--muted);line-height:1.2;text-align:right}
.top-user .chev{color:var(--muted)}
.page{padding:22px 26px 44px;flex:1;min-height:0;overflow-y:auto}

/* 右栏独立滚动：主内容列与右栏各自出滚动条，顶栏/侧栏/页面标题保持固定 */
.page.rail{overflow:hidden;display:flex;flex-direction:column}
.page.rail>.page-title,.page.rail>.steps,.page.rail>.flash-bar{flex:none}
.page.rail .home-grid,.page.rail .synth-grid,.page.rail .lib-grid{
  flex:1;min-height:0;align-items:stretch;grid-template-rows:minmax(0,1fr);
}
.page.rail .home-grid>*,.page.rail .synth-grid>*,.page.rail .lib-grid>*{
  min-height:0;overflow-y:auto;padding-bottom:22px;
}

/* ---------- 4. flash 消息 ---------- */
.flash-bar{
  display:flex;align-items:center;gap:8px;
  background:var(--badge-bg);border:1px solid #cfe3ff;color:var(--accent);
  padding:10px 16px;border-radius:10px;margin-bottom:16px;font-size:13px;
}
.flash-bar.err{background:var(--red-bg);border-color:#f6c9c7;color:var(--red)}

/* ---------- 5. 通用组件：卡片 / 按钮 / 徽标 ---------- */
.card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow)}
.card-h{display:flex;align-items:center;justify-content:space-between;padding:16px 20px 4px}
.card-h h3{font-size:15px;color:var(--title);display:flex;align-items:center;gap:8px}
.card-b{padding:14px 20px 18px}
.link-more{color:var(--accent);font-size:12.5px;display:inline-flex;align-items:center;gap:3px;white-space:nowrap}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:6px;
  border:none;cursor:pointer;border-radius:8px;
  font-size:13px;padding:9px 18px;transition:filter .15s,box-shadow .15s;
}
.btn-primary{background:var(--grad-btn);color:#fff;font-weight:600;box-shadow:0 4px 12px rgba(35,100,230,.25)}
.btn-primary:hover{filter:brightness(1.07)}
.btn-ghost{background:#fff;border:1px solid var(--border);color:var(--text)}
.btn-ghost:hover{border-color:#c3d8f8;color:var(--accent)}
.btn-block{width:100%}
.btn-sm{padding:6px 12px;font-size:12.5px}
.btn[disabled]{opacity:.6;cursor:not-allowed;box-shadow:none}
.btn-text-danger{background:none;border:none;color:var(--red);cursor:pointer;font-size:12.5px;display:inline-flex;align-items:center;gap:4px}
.badge{
  display:inline-block;padding:2px 9px;border-radius:6px;
  font-size:11.5px;background:var(--badge-bg);color:var(--accent);white-space:nowrap;
}
.badge.b-green{background:var(--green-bg);color:var(--green)}
.badge.b-purple{background:var(--purple-bg);color:var(--purple)}
.badge.b-orange{background:var(--orange-bg);color:var(--orange)}
.badge.b-yellow{background:var(--yellow-bg);color:#d99a17}
.badge.b-red{background:var(--red-bg);color:var(--red)}
.badge.b-gray{background:#eef2f9;color:var(--muted)}
.tag-pill{display:inline-block;padding:1px 8px;border-radius:5px;background:var(--badge-bg);color:var(--accent);font-size:11px;margin:1px 2px 1px 0}
.avatar{
  border-radius:50%;flex:none;overflow:hidden;
  display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(150deg,#5b9bff,#2f6df0);color:#fff;
}
.icon-btn{
  display:inline-flex;align-items:center;justify-content:center;
  width:30px;height:30px;border-radius:8px;border:none;background:none;
  color:var(--muted);cursor:pointer;transition:background .15s,color .15s;
}
.icon-btn:hover{background:var(--badge-bg);color:var(--accent)}

/* ---------- 6. 表格 / 分页 / 空态 ---------- */
.tbl{width:100%;border-collapse:collapse}
.tbl th{
  text-align:left;color:var(--muted);font-weight:500;font-size:12.5px;
  padding:10px 14px;border-bottom:1px solid var(--border);white-space:nowrap;
}
.tbl td{padding:12px 14px;border-bottom:1px solid var(--border-soft);color:var(--text);font-size:13px;vertical-align:middle}
.tbl tr:last-child td{border-bottom:none}
.tbl tr:hover td{background:#f8fbff}
.tbl .t-name{color:var(--title);font-weight:600;font-size:13px}
.tbl .t-sub{color:var(--muted);font-size:11px;margin-top:2px}
.tbl .ops{display:flex;align-items:center;gap:4px;white-space:nowrap}
.pagination{display:flex;align-items:center;gap:8px;padding:14px 20px;color:var(--muted);font-size:12.5px}
.pagination .pg-total{margin-right:auto}
.pg{min-width:26px;height:26px;padding:0 6px;border-radius:6px;display:inline-flex;align-items:center;justify-content:center;cursor:pointer;color:var(--text)}
.pg:hover{background:var(--badge-bg);color:var(--accent)}
.pg.on{background:var(--blue);color:#fff}
.empty{text-align:center;color:var(--muted);padding:38px 0;font-size:13px}
.empty .ic{color:#c6d8f2;margin-bottom:8px}

/* ---------- 7. 表单控件 ---------- */
.inp,.sel,.ta{
  border:1px solid var(--border);border-radius:8px;padding:9px 12px;
  font-size:13px;color:var(--title);background:#fff;outline:none;
  font-family:inherit;transition:border-color .15s,box-shadow .15s;width:100%;
}
.inp:focus,.sel:focus,.ta:focus{border-color:#9cc0f7;box-shadow:0 0 0 3px rgba(47,123,255,.10)}
.sel{appearance:none;-webkit-appearance:none;background-image:none;cursor:pointer;padding-right:30px}
.sel-wrap{position:relative;display:inline-block;width:100%}
.sel-wrap>.ic{position:absolute;right:10px;top:50%;transform:translateY(-50%);color:var(--muted);pointer-events:none}
.sel-wrap>.sel-icon-l{position:absolute;left:10px;right:auto;color:var(--accent)}
.sel-wrap.has-icon-l .sel{padding-left:32px}
.inp-icon{position:relative}
.inp-icon>.ic{position:absolute;left:12px;top:50%;transform:translateY(-50%);color:var(--muted)}
.inp-icon>.inp{padding-left:38px}
.ta{resize:vertical;line-height:1.7}
label.f-label{display:block;font-size:12.5px;color:var(--muted);margin-bottom:6px}
input[type=range]{
  -webkit-appearance:none;appearance:none;width:100%;height:4px;border-radius:2px;
  background:linear-gradient(to right,var(--blue) var(--p,50%),#e3ecfa var(--p,50%));
  outline:none;cursor:pointer;
}
input[type=range]::-webkit-slider-thumb{
  -webkit-appearance:none;width:14px;height:14px;border-radius:50%;
  background:#fff;border:2.5px solid var(--blue);box-shadow:0 1px 4px rgba(23,98,237,.3);
}
input[type=range]::-moz-range-thumb{width:12px;height:12px;border-radius:50%;background:#fff;border:2.5px solid var(--blue)}
details.fold summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;gap:6px;
  color:var(--text);font-size:12.5px;
}
details.fold summary::-webkit-details-marker{display:none}
/* 开关 */
.sw{position:relative;display:inline-block;width:36px;height:20px;flex:none}
.sw input{display:none}
.sw i{position:absolute;inset:0;background:#dbe6f6;border-radius:999px;transition:.2s;cursor:pointer}
.sw i:before{content:'';position:absolute;left:3px;top:3px;width:14px;height:14px;border-radius:50%;background:#fff;transition:.2s;box-shadow:0 1px 3px rgba(16,40,90,.25)}
.sw input:checked+i{background:var(--blue)}
.sw input:checked+i:before{transform:translateX(16px)}
/* 代码块 */
.code{background:#0f1f42;color:#cfe0ff;border-radius:8px;padding:12px 14px;font:12px/1.8 Consolas,"Courier New",monospace;overflow-x:auto;white-space:pre}

/* ---------- 8. tab 条 ---------- */
.tabs-row{display:flex;align-items:center;gap:22px;border-bottom:1px solid var(--border);padding:0 20px}
.tab{
  padding:13px 2px;cursor:pointer;color:var(--text);font-size:13.5px;
  border-bottom:2px solid transparent;margin-bottom:-1px;
  display:inline-flex;align-items:center;gap:6px;background:none;border-top:none;border-left:none;border-right:none;
}
.tab:hover{color:var(--accent)}
.tab.on{color:var(--accent);font-weight:600;border-bottom-color:var(--accent)}

/* ---------- 9. 统计环 donut / 图例 ---------- */
.donut{position:relative;border-radius:50%;flex:none}
.donut .donut-hole{
  position:absolute;background:#fff;border-radius:50%;
  display:flex;flex-direction:column;align-items:center;justify-content:center;
}
.donut .d-num{font-size:22px;font-weight:700;color:var(--title);line-height:1.1}
.donut .d-label{font-size:10.5px;color:var(--muted);margin-top:3px}
.lg-row{display:flex;align-items:center;gap:8px;font-size:12.5px;color:var(--text);padding:4px 0}
.lg-dot{width:8px;height:8px;border-radius:2.5px;flex:none}
.lg-row b{margin-left:auto;color:var(--title);font-weight:600}
.donut-legend{display:flex;align-items:center;gap:18px}

/* ---------- 10. 页面标题 ---------- */
.page-title{margin:4px 0 18px}
.page-title h1{font-size:22px;color:var(--title);margin-bottom:5px}
.page-title p{font-size:13px;color:var(--muted)}

/* ---------- 11. 首页 ---------- */
.home-grid{display:grid;grid-template-columns:1fr 272px;gap:20px;align-items:start}
.hero{
  border-radius:14px;overflow:hidden;position:relative;
  background:linear-gradient(115deg,#d8e8ff 0%,#eaf3ff 50%,#ddeaff 100%);
  padding:30px 32px;display:flex;justify-content:space-between;gap:20px;
}
.hero-tag{color:var(--accent);font-size:11px;letter-spacing:3px;font-weight:700}
.hero h1{font-size:26px;color:var(--title);margin:10px 0 8px}
.hero h1 em{color:var(--blue);font-style:normal}
.hero-sub{color:var(--text);font-size:13px;margin-bottom:20px}
.hero-cta{font-size:14px;padding:11px 22px;border-radius:10px}
.hero-ticks{display:flex;gap:18px;margin-top:22px;font-size:12.5px;color:var(--text)}
.hero-ticks span{display:inline-flex;align-items:center;gap:5px}
.hero-ticks .ic{color:var(--blue)}
.hero-art{flex:none;width:320px;display:flex;align-items:center;justify-content:center}
.feat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:18px}
.feat-card{padding:18px;display:block}
.feat-ic{width:42px;height:42px;border-radius:12px;display:flex;align-items:center;justify-content:center}
.ic-blue{background:#e3eeff;color:var(--blue)}
.ic-purple{background:var(--purple-bg);color:var(--purple)}
.ic-amber{background:var(--yellow-bg);color:#e8a020}
.ic-green{background:var(--green-bg);color:var(--green)}
.ic-red{background:var(--red-bg);color:var(--red)}
.ic-teal{background:var(--teal-bg);color:var(--teal)}
.feat-card h4{color:var(--title);font-size:15px;margin:12px 0 6px}
.feat-card p{color:var(--muted);font-size:12px;line-height:1.6;min-height:38px;margin:0 0 10px}
.feat-link{color:var(--accent);font-size:12.5px;font-weight:600;display:inline-flex;align-items:center;gap:5px}
.ucard{background:linear-gradient(165deg,#3f8bff,#1762ed);color:#fff;border-radius:14px;padding:20px;box-shadow:0 8px 20px rgba(23,98,237,.22)}
.ucard .u-top{display:flex;align-items:center;gap:12px}
.ucard .u-name{font-size:15px;font-weight:700}
.ucard .u-level{
  display:inline-block;margin-top:4px;font-size:10.5px;
  background:rgba(255,255,255,.2);border-radius:999px;padding:2px 10px;
}
.u-upg{
  display:inline-flex;align-items:center;gap:4px;white-space:nowrap;
  background:linear-gradient(90deg,#ffd98a,#f5b544);color:#7a4d00;
  border-radius:999px;padding:6px 13px;font-size:12px;font-weight:600;
}
.u-stats{display:flex;margin-top:18px;background:rgba(255,255,255,.15);border-radius:10px;padding:12px 0}
.u-stats>div{flex:1;text-align:center}
.u-stats b{display:block;font-size:17px}
.u-stats small{font-size:10.5px;color:rgba(255,255,255,.82)}
.rights-list li{display:flex;align-items:center;gap:8px;font-size:12.5px;color:var(--text);padding:4px 0}
.rights-list .ic{color:var(--green)}
.hot-item{display:flex;align-items:center;gap:10px;padding:9px 0;border-bottom:1px solid var(--border-soft)}
.hot-item:last-child{border-bottom:none}
.hot-ava{width:36px;height:36px;border-radius:50%;background:var(--badge-bg);color:var(--blue);display:flex;align-items:center;justify-content:center;flex:none}
.hot-name{font-size:13px;color:var(--title);font-weight:600}
.hot-sub{font-size:11px;color:var(--muted)}
.hot-play{
  margin-left:auto;width:28px;height:28px;border-radius:50%;flex:none;
  background:var(--blue);color:#fff;display:flex;align-items:center;justify-content:center;
}
.hot-play:hover{background:var(--blue-deep)}
.clone-promo{
  display:flex;align-items:center;gap:12px;padding:14px 16px;border-radius:12px;
  background:linear-gradient(120deg,#e9f1ff,#dbe9ff);border:1px solid #d4e4fb;
}
.clone-promo .cp-t{font-size:13px;color:var(--title);font-weight:700}
.clone-promo .cp-d{font-size:11px;color:var(--text);margin-top:2px}

/* ---------- 12. 语音合成页 ---------- */
.synth-grid{display:grid;grid-template-columns:1fr 300px;gap:20px;align-items:start}
.synth-tools{display:flex;gap:16px;margin-left:auto;align-items:center}
.tool-link{
  color:var(--text);font-size:12.5px;display:inline-flex;gap:4px;align-items:center;
  cursor:pointer;background:none;border:none;padding:0;
}
.tool-link:hover{color:var(--accent)}
.ta-main{width:100%;height:32vh;min-height:240px;border:none;resize:vertical;padding:16px 20px 8px;font-size:14px;outline:none;font-family:inherit;color:var(--title);line-height:1.8;background:transparent}
.ta-foot{
  display:flex;justify-content:space-between;align-items:center;
  padding:8px 20px 14px;color:var(--muted);font-size:12px;
}
.set-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;padding:16px 20px 4px}
.bgm-row{display:flex;align-items:center;gap:14px;padding:14px 20px;border-top:1px solid var(--border-soft)}
.bgm-row .bgm-t{font-size:13px;color:var(--title);white-space:nowrap}
.bgm-row .bgm-d{font-size:11px;color:var(--muted);white-space:nowrap}
.bgm-vol{display:flex;align-items:center;gap:8px;margin-left:auto;font-size:12px;color:var(--muted);width:220px}
.more-fold{padding:0 20px 14px}
.playbar{display:flex;align-items:center;gap:14px;padding:14px 20px;border-top:1px solid var(--border)}
.pb-play{
  width:36px;height:36px;border-radius:50%;border:none;cursor:pointer;flex:none;
  background:var(--badge-bg);color:var(--blue);display:flex;align-items:center;justify-content:center;
}
.pb-time{font-size:12px;color:var(--muted);white-space:nowrap}
.pb-bar{flex:1;height:4px;background:#e3ecfa;border-radius:2px;position:relative;cursor:pointer}
.pb-fill{position:absolute;left:0;top:0;bottom:0;width:0;background:var(--blue);border-radius:2px}
.pb-vol{color:var(--muted);display:flex;align-items:center}
.voice-cur{display:flex;align-items:center;gap:10px;padding:10px 12px;background:#f3f8ff;border:1px solid var(--border);border-radius:10px}
.voice-cur .vc-name{font-size:13px;color:var(--title);font-weight:600}
.voice-cur .vc-sub{font-size:11px;color:var(--muted)}
.slider-row{padding:9px 0}
.slider-h{display:flex;justify-content:space-between;font-size:12.5px;color:var(--title);margin-bottom:8px}
.slider-h b{color:var(--accent);font-weight:600}
.slider-scale{display:flex;justify-content:space-between;color:var(--muted);font-size:10.5px;margin-top:3px}
.mini-item{display:flex;align-items:center;gap:10px;padding:8px 0;border-bottom:1px solid var(--border-soft)}
.mini-item:last-child{border-bottom:none}
.mini-ic{color:var(--blue);flex:none}
.mini-name{font-size:12.5px;color:var(--title);font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:150px}
.mini-sub{font-size:11px;color:var(--muted)}
.mini-right{margin-left:auto;font-size:11px;color:var(--muted);white-space:nowrap}
/* 多人对话 */
#dlgList{min-height:26vh;padding:8px 0}
.dlg-row{display:flex;align-items:center;gap:10px;padding:7px 20px}
.dlg-row:hover{background:#f8fbff}
.dlg-n{width:22px;height:22px;border-radius:50%;flex:none;background:var(--badge-bg);color:var(--accent);display:flex;align-items:center;justify-content:center;font-size:11px;font-weight:700}
.dlg-voice{width:200px;flex:none}
/* 自定义下拉（限高 + 内部滚动，不超出屏幕） */
.cs-wrap{position:relative;display:block;width:100%}
.cs-btn{width:100%;display:flex;align-items:center;justify-content:space-between;gap:8px;border:1px solid var(--border);border-radius:8px;padding:9px 12px;background:#fff;font-size:13px;color:var(--title);cursor:pointer;font-family:inherit}
.cs-btn:hover{border-color:#c3d8f8}
.cs-btn .cs-label{flex:1;min-width:0;text-align:left;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.cs-btn svg{flex:none;color:var(--muted)}
.cs-panel{position:absolute;left:0;right:0;top:calc(100% + 4px);z-index:50;background:#fff;border:1px solid var(--border);border-radius:10px;box-shadow:0 10px 30px rgba(20,60,140,.14);max-height:min(320px,52vh);overflow-y:auto;padding:4px}
.cs-opt{padding:8px 10px;border-radius:7px;font-size:13px;color:var(--text);cursor:pointer;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.cs-opt:hover{background:var(--badge-bg);color:var(--accent)}
.cs-opt.on{background:var(--active-bg);color:var(--accent);font-weight:600}
/* 系统公告铃铛面板 */
.nb-wrap{position:relative;display:inline-flex}
.nb-panel{position:absolute;right:0;top:calc(100% + 10px);width:330px;max-height:min(420px,60vh);overflow-y:auto;background:#fff;border:1px solid var(--border);border-radius:12px;box-shadow:0 12px 34px rgba(20,60,140,.16);z-index:60;padding:6px}
.nb-panel:before{content:'系统公告';display:block;padding:8px 12px 6px;font-size:12px;font-weight:700;color:var(--muted);border-bottom:1px solid var(--border-soft)}
.nb-item{padding:9px 12px;border-bottom:1px solid var(--border-soft)}
.nb-item:last-child{border-bottom:none}
.nb-t{font-weight:700;color:var(--title);font-size:13px}
.nb-d{font-size:12.5px;color:var(--text);margin-top:4px;white-space:pre-wrap;word-break:break-word}
.nb-time{font-size:11px;color:var(--muted);margin-top:5px}
.nb-empty{padding:26px 0;text-align:center;color:var(--muted);font-size:12.5px}

/* ---------- 13. 声音克隆页 ---------- */
.steps{display:flex;align-items:center;margin:4px 0 18px}
.step{display:flex;align-items:center;gap:8px;color:var(--muted);font-size:13px}
.step .n{
  width:26px;height:26px;border-radius:50%;flex:none;
  background:#e8f0fd;color:var(--muted);
  display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:600;
}
.step.on{color:var(--accent);font-weight:600}
.step.on .n{background:var(--blue);color:#fff}
.step.done{color:var(--green)}
.step.done .n{background:var(--green-bg);color:var(--green)}
.step-line{width:56px;height:1.5px;background:var(--border);margin:0 14px}
.dz{
  border:1.5px dashed #b9d2f7;border-radius:12px;background:#f7faff;
  padding:34px 20px;text-align:center;margin:16px 20px;cursor:pointer;
  transition:border-color .15s,background .15s;
}
.dz.over,.dz:hover{border-color:var(--blue);background:#eef5ff}
.dz-ic{
  width:56px;height:56px;border-radius:50%;margin:0 auto 12px;
  background:var(--badge-bg);color:var(--blue);
  display:flex;align-items:center;justify-content:center;
}
.dz h4{color:var(--title);font-size:14.5px;margin-bottom:6px}
.dz p{color:var(--muted);font-size:12px;margin:0 0 16px}
.req{padding:2px 20px 14px}
.req h4{font-size:13px;color:var(--title);margin-bottom:8px}
.req li{display:flex;gap:8px;font-size:12.5px;color:var(--text);padding:3px 0}
.req li b{color:var(--title);font-weight:600}
.req li .dot-b{color:var(--blue);font-weight:700}
.clone-foot{
  display:flex;justify-content:space-between;align-items:center;
  padding:14px 20px;border-top:1px solid var(--border);font-size:12.5px;color:var(--muted);
}
.step-panel{margin-top:18px}
.step-panel .sp-title{display:flex;align-items:center;gap:8px;font-size:15px;color:var(--title);font-weight:700;padding:16px 20px 4px}
.form-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;padding:12px 20px}
.tip-item{display:flex;gap:10px;padding:8px 0;font-size:12.5px;color:var(--text);align-items:flex-start}
.tip-ic{flex:none;width:30px;height:30px;border-radius:8px;background:var(--badge-bg);color:var(--blue);display:flex;align-items:center;justify-content:center}
.tip-item b{display:block;color:var(--title);font-size:12.5px}
.tip-item small{color:var(--muted);font-size:11px}
.faq{border-bottom:1px solid var(--border-soft)}
.faq:last-child{border-bottom:none}
.faq summary{
  list-style:none;cursor:pointer;padding:10px 0;font-size:12.5px;color:var(--text);
  display:flex;justify-content:space-between;align-items:center;gap:8px;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary .ic{transition:transform .15s}
.faq[open] summary .ic{transform:rotate(90deg)}
.faq p{margin:0 0 10px;font-size:12px;color:var(--muted)}
.ps-row{display:flex;justify-content:space-between;align-items:center;padding:9px 0;font-size:12.5px;border-bottom:1px solid var(--border-soft)}
.ps-row:last-child{border-bottom:none}
.ps-row .ps-name{display:flex;align-items:center;gap:8px;color:var(--text)}
.ps-row .st{font-size:11.5px}
.st-wait{color:var(--muted)}
.st-doing{color:var(--accent)}
.st-done{color:var(--green)}
.done-hero{text-align:center;padding:36px 20px}
.done-hero .dh-ic{
  width:64px;height:64px;border-radius:50%;margin:0 auto 14px;
  background:var(--green-bg);color:var(--green);
  display:flex;align-items:center;justify-content:center;
}
.done-hero h3{color:var(--title);font-size:17px;margin-bottom:6px}
.done-hero p{color:var(--muted);font-size:12.5px;margin-bottom:18px}

/* ---------- 14. 声音库 / 历史记录 / 我的空间 ---------- */
.lib-grid{display:grid;grid-template-columns:1fr 272px;gap:20px;align-items:start}
.filter-row{display:flex;align-items:center;gap:10px;padding:14px 20px;flex-wrap:wrap}
.filter-row .sel-wrap{width:auto;min-width:108px}
.filter-row .f-search{flex:1;min-width:170px}
.view-tg{display:flex;border:1px solid var(--border);border-radius:8px;overflow:hidden;margin-left:auto}
.view-tg button{width:32px;height:30px;border:none;background:#fff;color:var(--muted);cursor:pointer;display:flex;align-items:center;justify-content:center}
.view-tg button.on{background:var(--badge-bg);color:var(--accent)}
.vcell{display:flex;align-items:center;gap:10px;min-width:0}
.v-play{
  width:28px;height:28px;border-radius:50%;border:none;cursor:pointer;flex:none;
  background:var(--badge-bg);color:var(--blue);display:flex;align-items:center;justify-content:center;
}
.v-play:hover{background:var(--blue);color:#fff}
.v-play.playing,.hot-play.playing{background:var(--blue);color:#fff}
.spin{width:12px;height:12px;border:2px solid #cfe0fb;border-top-color:var(--blue);border-radius:50%;display:inline-block;animation:rot .7s linear infinite}
.playing .spin{border-color:rgba(255,255,255,.45);border-top-color:#fff}
@keyframes rot{to{transform:rotate(360deg)}}
.v-wave{color:var(--blue);flex:none}
.act-link{color:var(--accent);cursor:pointer;background:none;border:none;font-size:12.5px;padding:0;display:inline-flex;align-items:center;gap:3px}
.fav-btn{color:var(--muted)}
.fav-btn.on{color:var(--yellow)}
.bar-row{display:flex;align-items:center;gap:10px;font-size:12.5px;color:var(--text);padding:7px 0}
.bar-row .bar-k{width:60px;flex:none}
.bar-track{flex:1;height:6px;background:var(--input-bg);border-radius:3px;overflow:hidden}
.bar-fill{height:100%;border-radius:3px}
.bar-row b{width:26px;text-align:right;color:var(--title);font-weight:600}
.tag-cloud{display:flex;flex-wrap:wrap;gap:8px}
.tag-cloud .tag-pill{padding:3px 10px;font-size:11.5px;cursor:pointer}
.tag-cloud .tag-pill b{color:var(--muted);font-weight:400;margin-left:3px}
.sc-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:14px;margin-bottom:18px}
.sc-card{padding:16px 18px;display:flex;align-items:center;gap:13px}
.sc-ic{width:44px;height:44px;border-radius:50%;flex:none;display:flex;align-items:center;justify-content:center}
.sc-num{font-size:20px;font-weight:700;color:var(--title);line-height:1.2}
.sc-label{font-size:11px;color:var(--muted);margin-top:2px}

/* ---------- 15. 用户中心 ---------- */
.profile-card{padding:24px 26px;display:flex;align-items:center;gap:20px}
.pf-ava{position:relative;width:88px;height:88px;flex:none}
.pf-ava .avatar{width:88px;height:88px}
.pf-cam{
  position:absolute;right:-2px;bottom:-2px;width:28px;height:28px;border-radius:50%;
  background:#fff;border:1px solid var(--border);color:var(--muted);
  display:flex;align-items:center;justify-content:center;cursor:pointer;
}
.pf-name{font-size:19px;color:var(--title);font-weight:700;display:flex;align-items:center;gap:10px}
.pf-meta{display:flex;align-items:center;gap:8px;font-size:12.5px;color:var(--muted);margin-top:6px}
.uc4{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin:16px 0}
.uc-stat{padding:16px 18px}
.ucs-h{display:flex;align-items:center;gap:8px;font-size:12px;color:var(--muted)}
.ucs-v{font-size:21px;font-weight:700;color:var(--title);margin:8px 0 4px}
.ucs-l{font-size:12px}
.info-grid{display:grid;grid-template-columns:1fr 1.15fr;gap:20px}
.it-row{display:flex;align-items:center;padding:11px 0;border-bottom:1px dashed var(--border);font-size:13px}
.it-row:last-child{border-bottom:none}
.it-k{width:86px;flex:none;color:var(--muted)}
.it-v{color:var(--title);display:flex;align-items:center;gap:8px}
.use-row{display:flex;align-items:center;gap:10px;padding:11px 0;border-bottom:1px dashed var(--border);font-size:13px}
.use-row:last-child{border-bottom:none}
.use-ic{width:32px;height:32px;border-radius:8px;flex:none;display:flex;align-items:center;justify-content:center}
.use-name{color:var(--text)}
.use-r{margin-left:auto;color:var(--title);font-weight:600}
.use-r2{width:110px;text-align:right;color:var(--muted);font-size:12px}
.tab-panel{padding:6px 0 2px}
.pwd-form{max-width:420px;padding:16px 20px 20px}
.pwd-form .f-label{margin-top:12px}

/* ---------- 16. 管理后台 ---------- */
.agroup{margin:2px 8px}
.agroup summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;gap:10px;
  padding:9px 10px;border-radius:10px;color:var(--text);font-size:13px;
}
.agroup summary::-webkit-details-marker{display:none}
.agroup summary:hover{background:#f4f8ff;color:var(--accent)}
.agroup summary .chev{margin-left:auto;transition:transform .18s;color:var(--muted)}
.agroup[open] summary .chev{transform:rotate(90deg)}
.agroup .sub{padding:2px 0 6px}
.agroup .sub a{
  display:block;padding:7px 12px 7px 42px;color:var(--muted);
  font-size:12.5px;border-radius:8px;
}
.agroup .sub a:hover{background:var(--active-bg);color:var(--accent)}
.sys-status{
  margin:auto 12px 12px;padding:14px;border-radius:12px;
  background:#f4f9ff;border:1px solid var(--border);font-size:12px;color:var(--muted);
}
.sys-status .ss-h{display:flex;align-items:center;gap:8px;color:var(--title);font-weight:700;font-size:13px;margin-bottom:8px}
.ss-dot{width:8px;height:8px;border-radius:50%;background:#22c55e;animation:pulse 1.6s infinite}
@keyframes pulse{
  0%{box-shadow:0 0 0 0 rgba(34,197,94,.45)}
  70%{box-shadow:0 0 0 8px rgba(34,197,94,0)}
  100%{box-shadow:0 0 0 0 rgba(34,197,94,0)}
}
.welcome{display:flex;align-items:center;gap:16px;margin-bottom:18px}
.welcome h1{font-size:22px;color:var(--title)}
.welcome p{font-size:12.5px;color:var(--muted);margin-top:4px}
.welcome .w-right{margin-left:auto;display:flex;align-items:center;gap:10px}
.date-box{
  display:flex;align-items:center;gap:8px;background:#fff;border:1px solid var(--border);
  border-radius:8px;padding:8px 14px;font-size:12.5px;color:var(--text);
}
.stat6{display:grid;grid-template-columns:repeat(6,1fr);gap:14px;margin-bottom:16px}
.st-card{padding:14px 16px}
.st-ic{width:38px;height:38px;border-radius:10px;display:flex;align-items:center;justify-content:center}
.st-card .st-label{font-size:11.5px;color:var(--muted);margin-top:10px}
.st-num{font-size:20px;font-weight:700;color:var(--title);line-height:1.25}
.st-num small{font-size:12px;color:var(--muted);font-weight:400}
.st-up{font-size:11px;color:var(--green);margin-top:2px}
.charts{display:grid;grid-template-columns:1.45fr 1fr;gap:16px;margin-bottom:16px}
.tables2{display:grid;grid-template-columns:1.45fr 1fr;gap:16px;margin-bottom:16px}
.cfg-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;padding:14px 20px}
.chart-legend{display:flex;align-items:center;gap:6px;font-size:11.5px;color:var(--muted);justify-content:center;margin-top:8px}

/* ---------- 17. 登录 / 注册页 ---------- */
body.auth-page{
  min-height:100vh;
  background:
    radial-gradient(900px 500px at 15% 10%,rgba(130,180,255,.25),transparent 60%),
    radial-gradient(800px 500px at 85% 90%,rgba(130,180,255,.22),transparent 60%),
    linear-gradient(135deg,#eaf3ff 0%,#f7faff 55%,#e3eeff 100%);
}
.auth-wrap{display:flex;min-height:100vh}
.auth-left{flex:0 0 58%;padding:34px 56px;position:relative;display:flex;flex-direction:column}
.auth-topnote{position:absolute;top:38px;right:56px;font-size:12px;color:var(--muted);letter-spacing:1px}
.auth-slogan{margin-top:7vh}
.auth-slogan h1{font-size:34px;color:var(--title);letter-spacing:1px}
.auth-slogan h1 em{color:var(--blue);font-style:normal}
.auth-slogan p{margin-top:12px;font-size:13.5px;color:var(--text)}
.auth-feats{margin-top:36px;display:flex;flex-direction:column;gap:18px}
.af-item{display:flex;gap:13px;align-items:flex-start}
.af-ic{
  width:40px;height:40px;border-radius:50%;flex:none;background:#fff;color:var(--blue);
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 4px 12px rgba(47,123,255,.14);
}
.af-t{font-size:14px;color:var(--title);font-weight:700}
.af-d{font-size:12px;color:var(--muted);margin-top:2px}
.auth-art{position:absolute;left:37%;top:33%;width:47%;pointer-events:none}
.auth-hand{
  position:absolute;left:56px;bottom:52px;color:var(--blue);
  font-size:21px;font-style:italic;font-weight:600;transform:rotate(-4deg);
}
.auth-right{flex:1;display:flex;align-items:center;justify-content:center;padding:40px 32px}
.auth-card{
  width:410px;background:#fff;border-radius:16px;
  box-shadow:0 16px 46px rgba(30,80,180,.13);padding:30px 36px 28px;
}
.auth-tabs{display:flex;gap:28px}
.auth-tab{
  padding:6px 2px;font-size:14.5px;color:var(--muted);cursor:pointer;
  border-bottom:2px solid transparent;background:none;border-top:none;border-left:none;border-right:none;
}
.auth-tab.on{color:var(--accent);font-weight:700;border-bottom-color:var(--accent)}
.auth-card h2{color:var(--title);font-size:20px;margin:22px 0 4px}
.auth-tip{font-size:12.5px;color:var(--muted);margin-bottom:20px}
.auth-flash{
  background:var(--red-bg);color:var(--red);border-radius:8px;
  padding:9px 12px;font-size:12.5px;margin-bottom:14px;
}
.auth-inp{margin-bottom:14px}
.eye-btn{
  position:absolute;right:12px;top:50%;transform:translateY(-50%);
  color:var(--muted);background:none;border:none;cursor:pointer;display:flex;
}
.auth-row{display:flex;justify-content:space-between;align-items:center;font-size:12.5px;color:var(--text);margin:4px 0 18px}
.auth-row label{display:flex;align-items:center;gap:6px;cursor:pointer}
.auth-row a{color:var(--accent)}
.auth-btn{width:100%;padding:12px;font-size:15px;border-radius:9px}
.auth-divider{display:flex;align-items:center;gap:12px;color:var(--muted);font-size:11.5px;margin:24px 0 14px}
.auth-divider::before,.auth-divider::after{content:"";flex:1;height:1px;background:var(--border)}
.auth-social{display:flex;justify-content:center;gap:44px}
.as-item{text-align:center;font-size:12px;color:var(--text);cursor:pointer;background:none;border:none}
.as-ic{width:42px;height:42px;border-radius:50%;display:flex;align-items:center;justify-content:center;margin:0 auto 6px}
.as-wechat{background:#e7f9ee;color:#1aad19}
.as-qq{background:#e8f1ff;color:#1296db}
.auth-switch{text-align:center;margin-top:22px;font-size:12.5px;color:var(--muted)}
.auth-switch a{color:var(--accent);font-weight:600}

/* ---------- 18. 响应式 ---------- */
@media (max-width:1280px){
  .home-grid,.synth-grid,.lib-grid{grid-template-columns:1fr}
  /* 窄屏回退为整页普通滚动 */
  .page.rail{overflow-y:auto;display:block}
  .page.rail .home-grid,.page.rail .synth-grid,.page.rail .lib-grid{grid-template-rows:none}
  .page.rail .home-grid>*,.page.rail .synth-grid>*,.page.rail .lib-grid>*{overflow:visible;padding-bottom:0}
  .feat-grid{grid-template-columns:repeat(2,1fr)}
  .stat6{grid-template-columns:repeat(3,1fr)}
  .sc-grid{grid-template-columns:repeat(3,1fr)}
  .uc4{grid-template-columns:repeat(2,1fr)}
  .charts,.tables2,.info-grid{grid-template-columns:1fr}
  .hero-art{display:none}
  .auth-left{flex:0 0 50%}
  .auth-art{display:none}
}

/* ---------- 19. 宣传首页（落地页） ---------- */
html:has(body.landing){scroll-behavior:smooth}
body.landing{background:#fff}
.ld-nav{
  position:sticky;top:0;z-index:50;
  background:rgba(255,255,255,.92);backdrop-filter:blur(8px);
  border-bottom:1px solid var(--border-soft);
}
.ld-nav-in{max-width:1200px;margin:0 auto;height:64px;display:flex;align-items:center;gap:34px;padding:0 24px}
.ld-brand{display:inline-flex;align-items:center;gap:10px}
.ld-brand .logo-mark{
  width:34px;height:34px;border-radius:9px;flex:none;
  background:var(--grad-btn);color:#fff;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 4px 10px rgba(35,100,230,.28);
}
.ld-links{display:flex;gap:26px}
.ld-links a{position:relative;font-size:14px;color:var(--text);padding:6px 2px}
.ld-links a:hover{color:var(--accent)}
.ld-links a.on{color:var(--accent);font-weight:600}
.ld-links a.on:after{content:'';position:absolute;left:22%;right:22%;bottom:-3px;height:3px;border-radius:2px;background:var(--blue)}
.ld-acts{margin-left:auto;display:flex;align-items:center;gap:18px}
.ld-login{font-size:14px;color:var(--text)}
.ld-login:hover{color:var(--accent)}
.ld-hero{
  position:relative;overflow:hidden;
  background:
    radial-gradient(700px 320px at 12% 0%,rgba(130,180,255,.22),transparent 60%),
    radial-gradient(700px 320px at 88% 20%,rgba(130,180,255,.20),transparent 60%),
    linear-gradient(180deg,#f2f8ff 0%,#e9f2ff 58%,#dbe9ff 100%);
}
.ld-hero-in{
  max-width:1200px;margin:0 auto;position:relative;z-index:2;
  display:grid;grid-template-columns:1.15fr .9fr .8fr;gap:30px;align-items:center;
  padding:60px 24px 150px;
}
.ld-pill{
  display:inline-block;background:#d8e8ff;color:var(--accent);
  font-size:12.5px;font-weight:600;border-radius:999px;padding:5px 15px;
}
.ld-left h1{font-size:38px;line-height:1.4;color:var(--title);margin:18px 0 12px;letter-spacing:1px}
.ld-left h1 em{color:var(--blue);font-style:normal}
.ld-desc{font-size:13.5px;color:var(--text);line-height:2}
.ld-feats{display:grid;grid-template-columns:1fr 1fr;gap:18px 22px;margin-top:30px}
.ld-feat{display:flex;gap:10px;align-items:flex-start}
.lf-ic{
  width:34px;height:34px;border-radius:10px;flex:none;
  background:#fff;color:var(--blue);
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 4px 12px rgba(47,123,255,.16);
}
.ld-feat b{display:block;font-size:13px;color:var(--title)}
.ld-feat small{font-size:11.5px;color:var(--muted)}
.ld-art{position:relative;display:flex;justify-content:center}
.ld-bubble{
  position:absolute;z-index:3;background:#fff;border-radius:12px;
  box-shadow:0 8px 20px rgba(30,80,180,.14);
  padding:7px 15px;font-size:13px;font-weight:600;color:var(--title);
  animation:ldFloat 3.4s ease-in-out infinite;
}
.ld-bubble.b1{top:2%;left:0}
.ld-bubble.b2{top:-4%;right:4%;animation-delay:.6s}
.ld-bubble.b3{top:32%;right:-3%;animation-delay:1.2s}
@keyframes ldFloat{0%,100%{transform:translateY(0)}50%{transform:translateY(-8px)}}
.ld-promo{text-align:center}
.ld-tag{
  display:inline-block;background:linear-gradient(135deg,#347cff,#1762ed);color:#fff;
  font-size:14px;font-weight:700;border-radius:8px;padding:5px 16px;
  transform:rotate(-4deg);box-shadow:0 6px 16px rgba(23,98,237,.28);
  position:relative;z-index:2;margin-right:150px;
}
.ld-ribbon{
  position:relative;display:inline-block;margin-top:-6px;
  background:linear-gradient(135deg,#3d85ff,#1762ed);color:#fff;
  font-size:32px;font-weight:800;letter-spacing:4px;
  padding:12px 38px;border-radius:8px;transform:rotate(-2.5deg);
  box-shadow:0 12px 28px rgba(23,98,237,.32);
}
.ld-ribbon:after{
  content:'';position:absolute;left:10%;right:10%;bottom:-14px;height:14px;
  border-bottom:4px solid #ffcf3f;border-radius:50%;transform:rotate(1deg);
}
.ld-promo-t{margin-top:30px;font-size:16px;font-weight:700;color:var(--accent)}
.ld-promo-d{margin-top:8px;font-size:12px;color:var(--muted)}
.ld-cta{margin-top:22px;font-size:15px;padding:13px 34px;border-radius:10px}
.ld-waves{position:absolute;left:0;right:0;bottom:-1px;width:100%;height:120px;z-index:1}
.ld-sec{max-width:1100px;margin:0 auto;padding:70px 24px;scroll-margin-top:76px}
.ld-sec-sm{padding-top:56px;padding-bottom:56px}
.ld-band{background:var(--bg)}
.ld-sec-h{text-align:center;margin-bottom:38px}
.ld-sec-h h2{font-size:26px;color:var(--title);letter-spacing:1px}
.ld-sec-h p{font-size:13.5px;color:var(--muted);margin-top:8px}
.ld-grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.ld-card{padding:24px}
.ld-card h4{color:var(--title);font-size:15px;margin:14px 0 8px}
.ld-card p{color:var(--muted);font-size:12.5px;line-height:1.7;margin:0}
.ld-step{padding:26px 24px}
.ld-step .n{
  width:34px;height:34px;border-radius:50%;background:var(--grad-btn);color:#fff;
  display:flex;align-items:center;justify-content:center;font-size:15px;font-weight:700;
  box-shadow:0 4px 10px rgba(35,100,230,.25);
}
.ld-step h4{color:var(--title);font-size:15px;margin:16px 0 8px}
.ld-step p{color:var(--muted);font-size:12.5px;line-height:1.7;margin:0}
.ld-scene{padding:20px;display:flex;align-items:flex-start;gap:14px}
.ld-scene h4{color:var(--title);font-size:14.5px;margin:2px 0 6px}
.ld-scene p{color:var(--muted);font-size:12.5px;line-height:1.7;margin:0}
.ld-faq{max-width:820px;margin:0 auto;padding:10px 28px}
.ld-faq .faq summary{font-size:13.5px;color:var(--title);font-weight:600;padding:14px 0}
.ld-faq .faq p{font-size:12.5px;line-height:1.8}
.ld-band-cta{
  text-align:center;border-radius:18px;padding:52px 32px;color:#fff;
  background:linear-gradient(120deg,#3d85ff,#1762ed);
  box-shadow:0 16px 40px rgba(23,98,237,.25);
}
.ld-band-cta h2{font-size:24px;letter-spacing:1px}
.ld-band-cta p{margin:12px 0 26px;font-size:13.5px;color:rgba(255,255,255,.85)}
.ld-cta-w{background:#fff;color:var(--accent);font-weight:700;font-size:14.5px;padding:12px 32px;border-radius:10px}
.ld-cta-w:hover{filter:brightness(.96)}
.ld-foot{border-top:1px solid var(--border-soft);background:#fff}
.ld-foot-in{
  max-width:1100px;margin:0 auto;padding:22px 24px;
  display:flex;align-items:center;gap:16px;
}
.ld-copy{margin-left:auto;font-size:12.5px;color:var(--muted)}
.ld-copy a{color:var(--accent)}
@media (max-width:1100px){
  .ld-hero-in{grid-template-columns:1fr;padding-top:46px;text-align:center;gap:44px}
  .ld-left h1{font-size:30px}
  .ld-desc br{display:none}
  .ld-feats{max-width:520px;margin:28px auto 0;text-align:left}
  .ld-promo{margin:0 auto}
  .ld-grid3{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:720px){
  .ld-links{display:none}
  .ld-grid3{grid-template-columns:1fr}
  .ld-copy{display:none}
  .ld-foot-in{justify-content:center}
}

/* ---------- 20. 落地页动效 ---------- */
/* Hero 入场：左列文字逐条上浮淡入 */
@keyframes ldFadeUp{from{opacity:0;transform:translateY(26px)}to{opacity:1;transform:none}}
.ld-left>*{animation:ldFadeUp .7s cubic-bezier(.22,.8,.36,1) both}
.ld-left .ld-pill{animation-delay:.05s}
.ld-left h1{animation-delay:.16s}
.ld-left .ld-desc{animation-delay:.3s}
.ld-left .ld-feats{animation-delay:.44s}
.ld-art{animation:ldFadeUp .8s .35s cubic-bezier(.22,.8,.36,1) both}
.ld-promo{animation:ldFadeUp .8s .55s cubic-bezier(.22,.8,.36,1) both}
/* 麦克风上下悬浮 + 音波律动 + 脉冲光环 */
.ld-art svg{animation:ldMicFloat 4s ease-in-out infinite}
@keyframes ldMicFloat{0%,100%{transform:translateY(0)}50%{transform:translateY(-9px)}}
.eq{transform-box:fill-box;transform-origin:center;animation:ldEq 1.25s ease-in-out infinite}
@keyframes ldEq{0%,100%{transform:scaleY(.5)}50%{transform:scaleY(1)}}
.ld-ring{
  position:absolute;left:50%;top:44%;width:200px;height:200px;margin:-100px 0 0 -100px;
  border:2px solid rgba(47,123,255,.22);border-radius:50%;
  animation:ldRing 3s ease-out infinite;pointer-events:none;
}
.ld-ring.r2{animation-delay:1.5s}
@keyframes ldRing{0%{transform:scale(.62);opacity:0}28%{opacity:.9}100%{transform:scale(1.28);opacity:0}}
/* “免费使用”丝带流光扫过 */
.ld-ribbon{overflow:hidden}
.ld-ribbon:before{
  content:'';position:absolute;top:0;bottom:0;left:-60%;width:45%;
  background:linear-gradient(105deg,transparent,rgba(255,255,255,.5),transparent);
  transform:skewX(-20deg);animation:ldShine 3.4s ease-in-out infinite;
}
@keyframes ldShine{0%{left:-60%}55%,100%{left:135%}}
.ld-tag{animation:ldTagBob 2.6s ease-in-out infinite}
@keyframes ldTagBob{0%,100%{transform:rotate(-4deg) translateY(0)}50%{transform:rotate(-4deg) translateY(-4px)}}
/* 底部波浪缓慢漂移 */
.ld-waves path:first-child{animation:ldWave 9s ease-in-out infinite alternate}
.ld-waves path:last-child{animation:ldWave 7s ease-in-out infinite alternate-reverse}
@keyframes ldWave{from{transform:translateX(-28px)}to{transform:translateX(28px)}}
/* 导航链接下划线动画（覆盖静态 .on 下划线） */
.ld-links a:after{
  content:'';position:absolute;left:50%;right:50%;bottom:-3px;height:3px;
  border-radius:2px;background:var(--blue);transition:left .25s ease,right .25s ease;
}
.ld-links a:hover:after,.ld-links a.on:after{left:22%;right:22%}
/* 卡片悬停上浮（过渡由下方 [data-reveal] 规则统一接管） */
.ld-card:hover,.ld-step:hover,.ld-scene:hover{transform:translateY(-5px);box-shadow:0 12px 28px rgba(30,80,180,.13)}
.ld-card:hover .feat-ic,.ld-step:hover .n,.ld-scene:hover .feat-ic{transform:scale(1.08) rotate(-4deg)}
.ld-card .feat-ic,.ld-step .n,.ld-scene .feat-ic{transition:transform .25s ease}
/* CTA 按钮箭头滑动 */
.ld-cta .ic,.ld-cta-w .ic{transition:transform .2s ease}
.ld-cta:hover .ic,.ld-cta-w:hover .ic{transform:translateX(4px)}
/* 滚动触发揭示：进入视口时上浮淡入，--d 控制阶梯延迟 */
[data-reveal]{
  opacity:0;transform:translateY(28px);
  transition:opacity .65s ease,transform .65s cubic-bezier(.22,.8,.36,1),box-shadow .25s ease;
  transition-delay:var(--d,0s);
}
[data-reveal].in{opacity:1;transform:none;transition-delay:0s}
/* 尊重系统的“减少动态效果”设置 */
@media (prefers-reduced-motion:reduce){
  .ld-hero *,.ld-art svg,.eq,.ld-waves path,[data-reveal]{
    animation:none!important;transition:none!important;
  }
  [data-reveal]{opacity:1!important;transform:none!important}
}

/* ---------- 21. 落地页：开放 API / 联系合作 ---------- */
.ld-api{display:grid;grid-template-columns:1fr 1.15fr;gap:40px;align-items:center}
.ld-api-list li{display:flex;gap:12px;align-items:flex-start;padding:9px 0}
.ld-api-list .ic{color:var(--green);margin-top:3px}
.ld-api-list b{display:block;font-size:14px;color:var(--title)}
.ld-api-list span{font-size:12.5px;color:var(--muted)}
.ld-api-note{font-size:12.5px;color:var(--muted);margin:16px 0 20px}
.ld-api-code{border-radius:12px;overflow:hidden;box-shadow:0 14px 34px rgba(15,31,66,.3)}
.ld-api-code-h{display:flex;align-items:center;gap:7px;background:#16294f;padding:11px 14px;font-size:12px;color:#9db8e8}
.ld-api-code-h span{width:10px;height:10px;border-radius:50%;flex:none}
.ld-api-code-h span:nth-child(1){background:#ff5f57}
.ld-api-code-h span:nth-child(2){background:#febc2e}
.ld-api-code-h span:nth-child(3){background:#28c840;margin-right:8px}
.ld-api-code .code{border-radius:0;padding:18px}
.ld-contact{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;max-width:880px;margin:0 auto}
.ld-contact-card{padding:26px 22px;text-align:center}
.ld-contact-card .feat-ic{margin:0 auto}
.ld-contact-card h4{color:var(--title);font-size:14.5px;margin:14px 0 6px}
.ld-contact-card p{color:var(--accent);font-size:14px;font-weight:600;margin:0;word-break:break-all}
.ld-contact-card .ld-contact-sub{color:var(--muted);font-size:12px;font-weight:400}
.ld-qr{width:120px;height:120px;object-fit:cover;border-radius:10px;border:1px solid var(--border);margin:0 auto;display:block}
@media (max-width:1100px){
  .ld-api{grid-template-columns:1fr}
}
@media (max-width:720px){
  .ld-contact{grid-template-columns:1fr}
}

/* ---------- 22. 品牌 logo 图片 ---------- */
.logo-mark{overflow:hidden}
.logo-mark img{width:100%;height:100%;object-fit:cover;display:block}
.logo-mark:has(img){background:#fff;box-shadow:0 4px 10px rgba(35,100,230,.16)}