/* ==========================================================================
   林汐权益 · V4 增量样式
   --------------------------------------------------------------------------
   这个文件是 V4 新增的, 原来的 assets/style.css 一个字没改。
   里面按模块分块, 想找哪一块直接搜标题:
     01 主题变量补丁(深色/浅色切换)
     02 导航下拉 / 全站搜索 / 主题按钮
     03 页脚 TG 群组 & 机器人卡片
     04 前台配套小件(客服按钮 / 回到顶部 / 加载动画 / 公告弹窗 / 本地记录)
     05 资源站(预览图 / 标签 / 下载 / 卡密解锁)
     06 在线网盘
     07 音乐库 + 悬浮播放器
     08 服务器面板 / 后台新页面
     09 移动端适配
   ========================================================================== */

/* ---------------------------------------------------------- 01 主题补丁 */
:root{ --lxglass:rgba(5,8,14,.78); --lxsoft:rgba(255,255,255,.055); }

html[data-theme="light"]{
  --bg:#f4f7fc;
  --bg2:#ffffff;
  --panel:rgba(10,25,55,.035);
  --panel2:rgba(255,255,255,.85);
  --line:rgba(20,60,120,.13);
  --line2:rgba(20,60,120,.26);
  --tx:#0d1a2b;
  --mu:#4c5c74;
  --mu2:#7b8aa1;
  --sh:0 16px 40px rgba(20,50,100,.12);
  --lxglass:rgba(255,255,255,.86);
  --lxsoft:rgba(10,25,55,.045);
}
html[data-theme="light"] body{ background:var(--bg); color:var(--tx); }
html[data-theme="light"] body::before{
  background-image:linear-gradient(rgba(60,120,200,.09) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(60,120,200,.09) 1px,transparent 1px);
}
html[data-theme="light"] body::after{
  background:
    radial-gradient(900px 480px at 12% -6%,rgba(34,211,238,.16),transparent 62%),
    radial-gradient(760px 420px at 88% 4%,rgba(139,92,246,.13),transparent 62%);
}
html[data-theme="light"] #stars{opacity:.16}
html[data-theme="light"] header.nav{background:var(--lxglass);border-bottom-color:var(--line)}
html[data-theme="light"] .topbar{background:linear-gradient(90deg,rgba(34,211,238,.14),rgba(139,92,246,.12),rgba(245,183,61,.12))}
html[data-theme="light"] ::-webkit-scrollbar-track{background:#e7edf6}
html[data-theme="light"] ::-webkit-scrollbar-thumb{background:#c3d0e2;border-color:#e7edf6}
html[data-theme="light"] footer{background:rgba(10,25,55,.03)}
html[data-theme="light"] .ipt,
html[data-theme="light"] .sel,
html[data-theme="light"] .txa,
html[data-theme="light"] input[type="text"],
html[data-theme="light"] input[type="password"],
html[data-theme="light"] input[type="number"],
html[data-theme="light"] textarea,
html[data-theme="light"] select{background:rgba(255,255,255,.9);color:var(--tx);border-color:var(--line2)}
html[data-theme="light"] .side{background:rgba(255,255,255,.72);border-color:var(--line)}
html[data-theme="light"] .tbl th{background:rgba(10,25,55,.04)}
html[data-theme="light"] .logbox{background:#f7f9fd;color:#16233a;border-color:var(--line)}
html[data-theme="light"] .nav-search input{background:rgba(255,255,255,.85)}

/* ---------------------------------------------------------- 02 导航下拉 */
.nav-drop{position:relative;display:flex;align-items:center}
.nav-drop-btn{
  display:flex;align-items:center;gap:6px;padding:8px 13px;border-radius:10px;cursor:pointer;
  background:none;border:1px solid transparent;color:var(--mu);font-family:inherit;font-size:14px;
  font-weight:600;transition:.2s;white-space:nowrap;
}
.nav-drop-btn:hover,.nav-drop.open .nav-drop-btn{color:var(--cy);background:rgba(34,211,238,.10);border-color:rgba(34,211,238,.22)}
.nav-drop-menu{
  position:absolute;top:calc(100% + 10px);left:0;min-width:290px;padding:8px;z-index:80;
  background:linear-gradient(180deg,var(--panel2),var(--bg2));border:1px solid var(--line2);
  border-radius:14px;box-shadow:var(--sh);backdrop-filter:blur(14px);
  opacity:0;visibility:hidden;transform:translateY(-6px);transition:.18s;
}
html[data-theme="light"] .nav-drop-menu{background:#fff}
.nav-drop.open .nav-drop-menu{opacity:1;visibility:visible;transform:translateY(0)}
.nav-drop-menu a{display:flex;gap:10px;align-items:flex-start;padding:9px 11px;border-radius:10px;transition:.16s}
.nav-drop-menu a:hover{background:rgba(34,211,238,.10)}
.nav-drop-menu .dm-ic{width:30px;height:30px;flex:none;display:grid;place-items:center;border-radius:9px;
  background:rgba(34,211,238,.12);color:var(--cy)}
.nav-drop-menu b{display:block;font-size:13.5px;font-weight:700;line-height:1.5}
.nav-drop-menu i{display:block;font-style:normal;font-size:11.5px;color:var(--mu2);line-height:1.5}

.nav-search{display:flex;align-items:center;gap:0;background:var(--panel);border:1px solid var(--line);
  border-radius:11px;overflow:hidden;transition:.2s}
.nav-search:focus-within{border-color:var(--cy);box-shadow:0 0 0 3px rgba(34,211,238,.12)}
.nav-search input{width:150px;padding:8px 10px;background:none;border:none;outline:none;color:var(--tx);
  font-family:inherit;font-size:13px}
.nav-search input::placeholder{color:var(--mu2)}
.nav-search button{background:none;border:none;color:var(--mu);padding:8px 10px;cursor:pointer;display:grid;place-items:center}
.nav-search button:hover{color:var(--cy)}

.theme-btn{display:grid;place-items:center;width:30px;height:30px;border-radius:9px;cursor:pointer;
  background:var(--panel);border:1px solid var(--line);color:var(--mu);transition:.2s}
.theme-btn:hover{color:var(--cy);border-color:var(--cy)}
.theme-btn .th-sun{display:none}
html[data-theme="light"] .theme-btn .th-moon{display:none}
html[data-theme="light"] .theme-btn .th-sun{display:block}

/* ---------------------------------------------------------- 03 页脚 TG 卡片 */
.foot-tg{padding:26px 0 6px;border-top:1px solid var(--line);margin-top:26px}
.ft-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:14px;flex-wrap:wrap}
.ft-head h3{margin:0;font-size:16px;display:flex;align-items:center;gap:8px}
.ft-head h3 .ic{color:var(--cy)}
.ft-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:10px}
.ft-card{display:flex;gap:11px;align-items:center;padding:11px 13px;border-radius:13px;
  background:var(--panel);border:1px solid var(--line);transition:.2s}
.ft-card:hover{border-color:var(--line2);transform:translateY(-2px)}
.ft-ic{width:34px;height:34px;flex:none;border-radius:10px;display:grid;place-items:center;
  background:linear-gradient(135deg,rgba(34,211,238,.18),rgba(139,92,246,.18));color:var(--cy)}
.ft-body{flex:1;min-width:0}
.ft-n{font-size:13.5px;font-weight:700;display:flex;align-items:center;gap:6px;flex-wrap:wrap}
.ft-l{font-size:11.5px;color:var(--mu2);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.ft-act{display:flex;gap:6px;flex:none}
.ft-note{display:flex;gap:10px;align-items:flex-start;margin-top:14px;padding:12px 14px;border-radius:13px;
  background:linear-gradient(140deg,rgba(245,183,61,.10),transparent);border:1px solid rgba(245,183,61,.22);
  font-size:13px;line-height:1.8}
.ft-note b{color:var(--am);white-space:nowrap;display:flex;align-items:center;gap:6px}
.ft-note span{color:var(--mu)}

/* ---------------------------------------------------------- 04 前台小件 */
.lx-loading{position:fixed;top:0;left:0;right:0;height:2.5px;z-index:999;pointer-events:none;
  background:linear-gradient(90deg,transparent,var(--cy),var(--vi),transparent);opacity:0;transition:opacity .2s}
.lx-loading span{display:block;height:100%;width:100%;animation:lxbar 1.1s infinite}
@keyframes lxbar{0%{transform:translateX(-100%)}100%{transform:translateX(100%)}}
.lx-loading.on{opacity:1}

.lx-service{position:fixed;left:18px;bottom:20px;z-index:70;display:flex;align-items:center;gap:8px;
  padding:9px 13px;border-radius:999px;font-size:13px;font-weight:600;color:#04121a;
  background:linear-gradient(135deg,var(--cy),var(--cy2));box-shadow:0 10px 28px rgba(34,211,238,.35);
  transition:.2s;max-width:48vw}
.lx-service span{max-width:150px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.lx-service:hover{transform:translateY(-2px)}

.lx-top{position:fixed;right:18px;bottom:150px;z-index:60;width:40px;height:40px;border-radius:12px;
  display:none;place-items:center;cursor:pointer;color:var(--tx);background:var(--panel2);
  border:1px solid var(--line2);backdrop-filter:blur(10px)}
.lx-top.on{display:grid}
.lx-top:hover{color:var(--cy);border-color:var(--cy)}

.lx-modal{position:fixed;inset:0;z-index:200;display:grid;place-items:center;padding:18px;
  background:rgba(2,6,14,.62);backdrop-filter:blur(4px)}
.lx-modal-b{position:relative;width:min(520px,94vw);padding:22px;border-radius:18px;
  background:linear-gradient(180deg,var(--panel2),var(--bg2));border:1px solid var(--line2);box-shadow:var(--sh)}
html[data-theme="light"] .lx-modal-b{background:#fff}
.lx-modal-b h3{margin:0 0 12px;font-size:17px;display:flex;align-items:center;gap:8px}
.lx-modal-b h3 .ic{color:var(--am)}
.lx-modal-c{color:var(--mu);font-size:14px;line-height:1.9;margin-bottom:16px;max-height:50vh;overflow:auto}
.lx-modal-x{position:absolute;top:12px;right:14px;background:none;border:none;color:var(--mu2);
  font-size:20px;cursor:pointer;line-height:1}

/* 资源卡(带预览图) */
.rcard{display:block;overflow:hidden;padding:0}
.rcard .rc-top{padding:16px 16px 0}
.rcard .rc-img{width:100%;height:132px;object-fit:cover;display:block;border-bottom:1px solid var(--line)}
.rcard .rc-in{padding:14px 16px 16px}
.rcard .rd{font-size:13px;color:var(--mu);margin:6px 0 10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}

.chips .chip .ic{vertical-align:-2px;margin-right:4px}

/* ---------------------------------------------------------- 05 资源站 */
.tagset{display:flex;gap:6px;flex-wrap:wrap}
.res-lock{margin:12px 0;padding:14px;border-radius:13px;border:1px dashed rgba(245,183,61,.4);
  background:rgba(245,183,61,.07);font-size:13.5px}
.res-lock b{color:var(--am)}
.res-meta{display:flex;gap:14px;flex-wrap:wrap;font-size:12.5px;color:var(--mu2);margin-top:10px}
.res-body{font-size:14.5px;line-height:2;color:var(--mu);white-space:pre-wrap}

/* ---------------------------------------------------------- 06 在线网盘 */
.disk-bar{display:flex;gap:10px;flex-wrap:wrap;align-items:center;margin:14px 0}
.disk-crumb{display:flex;align-items:center;gap:6px;flex-wrap:wrap;font-size:13.5px;margin-bottom:12px}
.disk-crumb a{color:var(--cy)}
.disk-crumb .sp{color:var(--mu2)}
.disk-up{border:1.5px dashed var(--line2);border-radius:15px;padding:20px;text-align:center;transition:.2s;
  background:var(--panel)}
.disk-up.hot{border-color:var(--cy);background:rgba(34,211,238,.08)}
.disk-up .ic{color:var(--cy)}
.disk-list{display:grid;grid-template-columns:repeat(auto-fill,minmax(190px,1fr));gap:10px}
.disk-item{position:relative;padding:12px;border-radius:13px;background:var(--panel);border:1px solid var(--line);
  transition:.2s;min-width:0}
.disk-item:hover{border-color:var(--line2);transform:translateY(-2px)}
.disk-item .di-ic{width:36px;height:36px;border-radius:10px;display:grid;place-items:center;
  background:rgba(34,211,238,.12);color:var(--cy);margin-bottom:8px}
.disk-item.dir .di-ic{background:rgba(245,183,61,.14);color:var(--am)}
.disk-item .di-n{font-size:13.5px;font-weight:600;word-break:break-all;line-height:1.5;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.disk-item .di-m{font-size:11.5px;color:var(--mu2);margin-top:4px}
.disk-item .di-a{display:flex;gap:5px;flex-wrap:wrap;margin-top:9px}
.disk-item .di-a .btn{padding:3px 8px;font-size:11.5px}
.bar{height:7px;border-radius:99px;background:var(--panel);border:1px solid var(--line);overflow:hidden;margin:8px 0}
.bar i{display:block;height:100%;background:linear-gradient(90deg,var(--cy),var(--vi))}
.prev-img{max-width:100%;border-radius:12px;border:1px solid var(--line)}
.prev-txt{max-height:420px;overflow:auto;white-space:pre-wrap;font-family:var(--fm);font-size:12.5px;
  background:rgba(2,8,18,.5);border:1px solid var(--line);border-radius:12px;padding:14px}
html[data-theme="light"] .prev-txt{background:#f7f9fd}

/* ---------------------------------------------------------- 07 音乐 */
.music-lib{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:12px}
.song{display:flex;gap:11px;align-items:center;padding:10px 12px;border-radius:12px;cursor:pointer;
  background:var(--panel);border:1px solid var(--line);transition:.18s}
.song:hover{border-color:var(--line2);transform:translateX(2px)}
.song.on{border-color:var(--cy);background:rgba(34,211,238,.10)}
.song .cv{width:42px;height:42px;border-radius:10px;object-fit:cover;flex:none;
  background:linear-gradient(135deg,rgba(34,211,238,.25),rgba(139,92,246,.25))}
.song .sx{flex:1;min-width:0}
.song .st{font-size:13.5px;font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.song .sa{font-size:11.5px;color:var(--mu2);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* 悬浮播放器 */
.lxplayer{position:fixed;right:18px;bottom:18px;z-index:90;width:320px;border-radius:18px;
  background:linear-gradient(170deg,var(--panel2),var(--bg2));border:1px solid var(--line2);
  box-shadow:0 20px 50px rgba(0,0,0,.42);backdrop-filter:blur(16px);overflow:hidden;
  transition:width .22s,height .22s,transform .22s}
html[data-theme="light"] .lxplayer{box-shadow:0 18px 40px rgba(20,50,100,.18);background:#fff}
.lxplayer .lp-top{display:flex;align-items:center;gap:9px;padding:10px 12px;border-bottom:1px solid var(--line)}
.lxplayer .lp-cv{width:42px;height:42px;border-radius:50%;flex:none;object-fit:cover;
  border:1px solid var(--line2);background:linear-gradient(135deg,var(--cy),var(--vi))}
.lxplayer.playing .lp-cv{animation:lpspin 9s linear infinite}
@keyframes lpspin{to{transform:rotate(360deg)}}
.lxplayer .lp-info{flex:1;min-width:0}
.lxplayer .lp-t{font-size:13.5px;font-weight:700;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.lxplayer .lp-a{font-size:11.5px;color:var(--mu2);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.lxplayer .lp-min{background:none;border:1px solid var(--line);color:var(--mu);width:26px;height:26px;
  border-radius:8px;cursor:pointer;display:grid;place-items:center;flex:none}
.lxplayer .lp-min:hover{color:var(--cy);border-color:var(--cy)}
.lxplayer .lp-body{padding:6px 12px 12px}
.lxplayer .lp-bar{position:relative;height:5px;border-radius:99px;background:var(--panel);border:1px solid var(--line);
  margin:8px 0 6px;cursor:pointer}
.lxplayer .lp-bar i{position:absolute;left:0;top:0;bottom:0;width:0;border-radius:99px;
  background:linear-gradient(90deg,var(--cy),var(--vi))}
.lxplayer .lp-bar b{position:absolute;top:50%;width:10px;height:10px;border-radius:50%;background:var(--cy);
  transform:translate(-50%,-50%);box-shadow:0 0 0 3px rgba(34,211,238,.2);left:0}
.lxplayer .lp-time{display:flex;justify-content:space-between;font-size:11px;color:var(--mu2);font-family:var(--fm)}
.lxplayer .lp-ctl{display:flex;align-items:center;justify-content:center;gap:10px;margin:8px 0 4px}
.lxplayer .lp-btn{width:36px;height:36px;border-radius:50%;border:1px solid var(--line2);background:var(--panel);
  color:var(--tx);cursor:pointer;display:grid;place-items:center;transition:.18s}
.lxplayer .lp-btn:hover{color:var(--cy);border-color:var(--cy)}
.lxplayer .lp-btn.main{width:44px;height:44px;border:none;background:linear-gradient(135deg,var(--cy),var(--cy2));color:#04121a}
.lxplayer .lp-row{display:flex;align-items:center;gap:8px;margin-top:6px;font-size:11.5px;color:var(--mu2)}
.lxplayer .lp-row input[type=range]{flex:1;accent-color:var(--cy);height:3px}
.lxplayer .lp-list{max-height:186px;overflow:auto;border-top:1px solid var(--line);padding:6px 12px 12px;display:none}
.lxplayer.list-open .lp-list{display:block}
.lxplayer .lp-song{display:flex;gap:8px;align-items:center;padding:7px 8px;border-radius:9px;cursor:pointer;font-size:12.5px}
.lxplayer .lp-song:hover{background:rgba(34,211,238,.09)}
.lxplayer .lp-song.on{color:var(--cy);background:rgba(34,211,238,.12)}
.lxplayer .lp-song .n{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.lxplayer .lp-empty{padding:14px 4px;font-size:12.5px;color:var(--mu2);text-align:center}
/* 最小化(收成一个小球) */
.lxplayer.min{width:58px;height:58px;border-radius:50%;cursor:pointer}
.lxplayer.min .lp-top{border:none;padding:0;height:100%;justify-content:center}
.lxplayer.min .lp-info,.lxplayer.min .lp-body{display:none}
.lxplayer.min .lp-cv{width:38px;height:38px}
.lxplayer.min .lp-min{display:none}

/* ---------------------------------------------------------- 08 后台新页面 */
.panel-head{display:flex;gap:10px;flex-wrap:wrap;align-items:center;justify-content:space-between;margin-bottom:14px}
.kv2{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:10px}
.kv2 .it{padding:12px 14px;border-radius:12px;background:var(--panel);border:1px solid var(--line)}
.kv2 .it .k{font-size:12px;color:var(--mu2)}
.kv2 .it .v{font-size:16px;font-weight:700;margin-top:3px;word-break:break-all}
.dot{width:8px;height:8px;border-radius:50%;display:inline-block;margin-right:6px;background:var(--mu2)}
.dot.ok{background:var(--gn);box-shadow:0 0 0 3px rgba(52,211,153,.16)}
.dot.no{background:var(--rd);box-shadow:0 0 0 3px rgba(251,113,133,.16)}
.file-row{display:flex;align-items:center;gap:8px;padding:7px 10px;border-radius:9px;font-size:13px}
.file-row:hover{background:var(--panel)}
.file-row .nm{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.file-row.dir .nm{color:var(--am);font-weight:600}
.code-box{font-family:var(--fm);font-size:12.5px;line-height:1.9;background:rgba(2,8,18,.5);
  border:1px solid var(--line);border-radius:12px;padding:12px;max-height:300px;overflow:auto;white-space:pre-wrap}
html[data-theme="light"] .code-box{background:#f7f9fd}
.op-lock{display:flex;gap:10px;align-items:center;flex-wrap:wrap;padding:12px 14px;border-radius:13px;
  background:rgba(245,183,61,.09);border:1px solid rgba(245,183,61,.3);font-size:13px;margin-bottom:14px}

/* ---------------------------------------------------------- 09 移动端 */
@media (max-width:1080px){
  .nav-search input{width:110px}
}
@media (max-width:900px){
  nav.menu{display:none}
  nav.menu.open{display:flex;flex-direction:column;position:absolute;top:66px;left:0;right:0;padding:10px;
    background:var(--lxglass);border-bottom:1px solid var(--line2);backdrop-filter:blur(14px);gap:2px;z-index:70}
  nav.menu.open .nav-drop{display:block;width:100%}
  nav.menu.open .nav-drop-btn{width:100%;justify-content:space-between}
  nav.menu.open .nav-drop-menu{position:static;opacity:1;visibility:visible;transform:none;
    box-shadow:none;border:none;background:none;min-width:0;padding:2px 0 0 6px;display:none}
  nav.menu.open .nav-drop.open .nav-drop-menu{display:block}
  .nav-toggle{display:block}
  .nav-search{display:none}
  .nav-right{gap:6px}
  .lxplayer{right:10px;bottom:10px;width:min(330px,calc(100vw - 20px))}
  .lxplayer.min{bottom:78px;right:12px}
  .lx-service{left:10px;bottom:12px;padding:8px 11px;font-size:12.5px}
  .lx-service span{max-width:96px}
  .lx-top{bottom:auto;top:78px;right:12px;width:34px;height:34px}
  .ft-grid{grid-template-columns:1fr}
  .disk-list{grid-template-columns:repeat(auto-fill,minmax(150px,1fr))}
  .disk-item .di-a .btn{padding:3px 6px;font-size:11px}
  .prev-txt{font-size:11.5px}
}
@media (max-width:560px){
  .lxplayer .lp-list{max-height:140px}
  .kpis{grid-template-columns:repeat(2,1fr)}
  .ft-note{flex-direction:column;gap:6px}
  .disk-bar .btn{flex:1}
}

/* 打印时别把播放器/悬浮按钮带上 */
@media print{
  .lxplayer,.lx-service,.lx-top,.topbar,.nav,#stars{display:none !important}
}

/* ===== [V9新增] 页脚安全认证图标 ===== */
.ft-cert{display:flex;flex-wrap:wrap;gap:8px;justify-content:center;align-items:center;padding:18px 12px 6px;margin-top:16px;border-top:1px solid var(--line)}
.ft-cert a{display:block;line-height:0;opacity:.72;transition:opacity .18s ease,transform .18s ease}
.ft-cert a:hover{opacity:1;transform:translateY(-1px)}
.ft-cert img{height:31px;width:auto;border-radius:7px}
@media(max-width:640px){.ft-cert{gap:6px;padding:14px 8px 4px}.ft-cert img{height:26px}}