/* ============================================================
 * 壁纸站 · 公共样式（前台 index.html / 后台 admin.html 共用）
 * ============================================================ */
:root{
  --font-body:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --font-display:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --r-sm:8px; --r-md:12px; --r-lg:18px; --r-pill:999px;
  --gap:16px;
  --maxw:1840px;
}
html[data-theme="dark"]{
  --bg:#0b0d10; --bg-soft:#0f1216; --surface:#15181e; --surface-2:#1c2129; --surface-3:#232a34;
  --border:#272e38; --border-soft:#1f242c;
  --text:#eef1f6; --text-2:#c3cad6; --muted:#8b95a4;
  --accent:#ffc24b; --accent-2:#e0962a; --accent-ink:#1a1300;
  --danger:#ff6b6b; --ok:#4ecb8c;
  --shadow:0 18px 44px rgba(0,0,0,.5);
  --shadow-sm:0 6px 18px rgba(0,0,0,.4);
  --overlay:rgba(6,8,11,.86);
}
html[data-theme="light"]{
  --bg:#f2f3f6; --bg-soft:#e9ebef; --surface:#ffffff; --surface-2:#f5f6f9; --surface-3:#eceef3;
  --border:#dde1e8; --border-soft:#e7eaf0;
  --text:#141821; --text-2:#3c4453; --muted:#6b7484;
  --accent:#c8811a; --accent-2:#a8690f; --accent-ink:#ffffff;
  --danger:#d94848; --ok:#1e9e63;
  --shadow:0 16px 40px rgba(20,28,48,.14);
  --shadow-sm:0 6px 16px rgba(20,28,48,.1);
  --overlay:rgba(240,242,246,.9);
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  background:var(--bg);color:var(--text);font-family:var(--font-body);
  font-size:15px;line-height:1.6;-webkit-font-smoothing:antialiased;
  font-synthesis:none;line-break:strict;overflow-wrap:break-word;
  transition:background .25s ease,color .25s ease;
}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit}
input,textarea,select{font-family:inherit;font-size:14px;color:var(--text)}
img{display:block;max-width:100%}
::selection{background:var(--accent);color:var(--accent-ink)}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;gap:8px;padding:9px 15px;border-radius:var(--r-pill);
  background:var(--surface-2);border:1px solid var(--border);color:var(--text);
  font-size:13.5px;font-weight:600;white-space:nowrap;transition:.16s ease}
.btn:hover{background:var(--surface-3);border-color:var(--muted)}
.btn svg{width:17px;height:17px}
.btn-primary{background:var(--accent);color:var(--accent-ink);border-color:transparent}
.btn-primary:hover{background:var(--accent-2);border-color:transparent}
.btn-ghost{background:transparent}
.btn-danger{color:var(--danger);border-color:var(--border)}
.btn-danger:hover{background:rgba(255,107,107,.12);border-color:var(--danger)}
.btn:disabled{opacity:.5;cursor:not-allowed}

/* ---------- top nav ---------- */
.nav{position:sticky;top:0;z-index:60;background:var(--bg);border-bottom:1px solid var(--border)}
.nav-inner{max-width:var(--maxw);margin:0 auto;padding:12px 22px;display:flex;align-items:center;gap:16px;flex-wrap:wrap}
.brand{display:flex;align-items:center;gap:10px;font-family:var(--font-display);font-weight:800;
  font-size:18px;letter-spacing:.2px}
.brand-mark{width:36px;height:36px;border-radius:11px;display:grid;place-items:center;
  background:linear-gradient(145deg,var(--accent),var(--accent-2));color:var(--accent-ink);flex:none}
.brand-mark svg{width:21px;height:21px}
.brand small{display:block;font-size:10.5px;letter-spacing:.16em;text-transform:uppercase;color:var(--muted);font-weight:600}
.nav-links{display:flex;align-items:center;gap:6px;flex-wrap:wrap}
.nav-item{padding:8px 13px;border-radius:var(--r-pill);font-size:14px;font-weight:600;color:var(--text-2);transition:.15s}
.nav-item:hover{background:var(--surface-2);color:var(--text)}
.nav-item.active{background:var(--surface-2);color:var(--text)}
.nav-cat{position:relative}
.nav-cat::before{content:'';position:absolute;left:0;right:0;top:100%;height:10px}
.nav-cat-btn{display:inline-flex;align-items:center;gap:5px}
.nav-cat-btn svg{width:14px;height:14px;transition:transform .2s}
.nav-cat:hover .nav-cat-btn svg{transform:rotate(180deg)}
.nav-menu{position:absolute;top:calc(100% + 8px);left:0;min-width:178px;background:var(--surface);
  border:1px solid var(--border);border-radius:var(--r-md);box-shadow:var(--shadow);
  padding:7px;display:none;flex-direction:column;gap:2px;z-index:70}
.nav-cat:hover .nav-menu{display:flex}
.nav-menu a{padding:8px 11px;border-radius:var(--r-sm);font-size:13.5px;color:var(--text-2);white-space:nowrap}
.nav-menu a:hover{background:var(--surface-2);color:var(--text)}
.nav-menu .sub-all{font-weight:700;color:var(--text);border-bottom:1px solid var(--border-soft);
  margin-bottom:3px;padding-bottom:9px}
.nav-right{margin-left:auto;display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.search{display:flex;align-items:center;gap:8px;background:var(--surface-2);border:1px solid var(--border);
  border-radius:var(--r-pill);padding:7px 8px 7px 13px;min-width:230px}
.search svg{width:16px;height:16px;color:var(--muted);flex:none}
.search input{background:none;border:none;outline:none;flex:1;min-width:0;font-size:13.5px}
.search button{padding:5px 13px;border-radius:var(--r-pill);background:var(--accent);color:var(--accent-ink);
  font-size:13px;font-weight:700}
.icon-btn{width:38px;height:38px;border-radius:50%;display:grid;place-items:center;
  background:var(--surface-2);border:1px solid var(--border);transition:.16s}
.icon-btn:hover{background:var(--surface-3);border-color:var(--muted)}
.icon-btn svg{width:18px;height:18px}

/* ---------- layout ---------- */
.wrap{max-width:var(--maxw);margin:0 auto;padding:26px 22px 60px}
.page-head{display:flex;align-items:flex-end;justify-content:space-between;gap:18px;flex-wrap:wrap;margin-bottom:22px}
.page-head h1{margin:0;font-family:var(--font-display);font-size:clamp(24px,3.4vw,34px);font-weight:800;letter-spacing:-.5px}
.page-head p{margin:6px 0 0;color:var(--muted);font-size:13.5px}
.chips{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:20px}
.chip{padding:7px 14px;border-radius:var(--r-pill);background:var(--surface-2);border:1px solid var(--border);
  font-size:13px;font-weight:600;color:var(--text-2)}
.chip:hover{background:var(--surface-3)}
.chip.active{background:var(--accent);color:var(--accent-ink);border-color:transparent}

/* ---------- masonry ---------- */
.masonry{column-count:4;column-gap:var(--gap)}
@media(max-width:1600px){.masonry{column-count:3}}
@media(max-width:1240px){.masonry{column-count:3}}
@media(max-width:940px){.masonry{column-count:2}}
@media(max-width:640px){.masonry{column-count:2}}
@media(max-width:440px){.masonry{column-count:1}}
.wall-card{break-inside:avoid;margin:0 0 var(--gap);background:var(--surface);border:1px solid var(--border);
  border-radius:var(--r-md);overflow:hidden;box-shadow:var(--shadow-sm);transition:transform .18s ease,border-color .18s;
  content-visibility:auto;contain-intrinsic-size:300px 360px}
.wall-card:hover{transform:translateY(-3px);border-color:var(--muted)}
.wall-card.dead .wall-btn{display:none}
.wall-card.dead .dead-box{display:flex}
.dead-box{display:none;flex-direction:column;align-items:center;justify-content:center;gap:10px;padding:34px 14px;color:var(--muted);font-size:13px;text-align:center}
.dead-box svg{width:26px;height:26px;opacity:.55}
.btn-mini{padding:5px 12px;font-size:12.5px;line-height:1.2}
.wall-btn{display:block;width:100%;padding:0;line-height:0;background:var(--surface-3)}
.wall-btn img{width:100%;height:auto;min-height:90px;object-fit:cover}
.wall-btn.broken::after{content:"图片加载失败 · 请检查外链地址";display:block;padding:26px 12px;color:var(--muted);font-size:12px;text-align:center}
.wall-card figcaption{padding:10px 12px;display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:12.5px}
.wall-card figcaption b{font-weight:600;color:var(--text-2);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.wall-card figcaption span{color:var(--muted);flex:none}
.empty{padding:70px 20px;text-align:center;color:var(--muted);border:1px dashed var(--border);border-radius:var(--r-lg)}
.empty svg{width:40px;height:40px;margin-bottom:12px;opacity:.6}
.empty h3{margin:0 0 6px;color:var(--text-2);font-size:16px}

/* ---------- lightbox ---------- */
#lightbox{position:fixed;inset:0;z-index:200;background:var(--overlay);backdrop-filter:blur(8px);
  display:none;align-items:center;justify-content:center;padding:14px}
#lightbox.open{display:flex}
.lb-inner{width:100%;height:100%;display:flex;flex-direction:column;gap:12px}
.lb-imgbox{flex:1;min-height:0;background:var(--surface);border:1px solid var(--border);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--shadow);cursor:zoom-in;display:flex;align-items:center;justify-content:center;position:relative}
.lb-imgbox img{max-width:100%;max-height:100%;width:auto;height:auto;object-fit:contain;background:var(--bg-soft);user-select:none;-webkit-user-drag:none}
.lb-imgbox.zoomed{cursor:grab}
.lb-imgbox.zoomed.dragging{cursor:grabbing}
.lb-imgbox.zoomed img{max-width:none;max-height:none;cursor:inherit}
.lb-bar{display:flex;align-items:center;gap:12px;flex-wrap:wrap;color:var(--text)}
.lb-bar .cap{font-size:13.5px;color:var(--text-2);flex:1;min-width:150px}
.lb-close{position:fixed;top:22px;right:24px;z-index:30}

/* ---------- bing page ---------- */
.toolbar{display:flex;align-items:center;gap:12px;flex-wrap:wrap;background:var(--surface);
  border:1px solid var(--border);border-radius:var(--r-md);padding:14px 16px;margin-bottom:16px}
.toolbar label{font-size:13px;color:var(--muted);display:flex;align-items:center;gap:7px}
.toolbar select,.field input,.field textarea{background:var(--surface-2);border:1px solid var(--border);
  border-radius:var(--r-sm);padding:8px 11px;outline:none}
.toolbar select:focus,.field input:focus,.field textarea:focus{border-color:var(--accent)}
.bing-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:14px}
.bing-item{background:var(--surface);border:1px solid var(--border);border-radius:var(--r-md);overflow:hidden;position:relative}
.bing-item img{width:100%;aspect-ratio:16/10;object-fit:cover;background:var(--surface-3)}
.bing-item input[type=checkbox]{position:absolute;top:9px;left:9px;width:22px;height:22px;cursor:pointer;accent-color:var(--accent)}
.bing-info{padding:11px 13px;font-size:12px}
.bing-info strong{display:block;font-size:12.5px;margin-bottom:3px}
.bing-info span{color:var(--muted);display:block;line-height:1.45;max-height:2.9em;overflow:hidden}
.note{font-size:12.5px;color:var(--muted);margin:14px 0 0}

/* ---------- footer ---------- */
.foot{max-width:var(--maxw);margin:0 auto;padding:26px 22px 40px;border-top:1px solid var(--border);
  color:var(--muted);font-size:12.5px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}

/* ---------- admin login ---------- */
.login-wrap{min-height:100vh;display:grid;place-items:center;padding:40px 20px}
.login-card{width:100%;max-width:400px;background:var(--surface);border:1px solid var(--border);
  border-radius:var(--r-lg);padding:34px 30px;box-shadow:var(--shadow)}
.login-card .brand{justify-content:center;margin-bottom:22px}
.login-card h1{margin:0 0 4px;font-size:21px;font-weight:800;text-align:center;font-family:var(--font-display)}
.login-card .sub{text-align:center;color:var(--muted);font-size:13px;margin:0 0 22px}
.field{margin-bottom:15px}
.field label{display:block;font-size:12.5px;color:var(--muted);margin-bottom:6px;font-weight:600}
.field input,.field textarea{width:100%}
.login-card .btn{width:100%;justify-content:center;margin-top:6px}
.login-hint{margin-top:16px;text-align:center;font-size:12px;color:var(--muted);background:var(--surface-2);
  border:1px solid var(--border);border-radius:var(--r-sm);padding:9px 12px}
.login-err{color:var(--danger);font-size:12.5px;margin:10px 0 0;text-align:center;min-height:18px}
.login-actions{margin-top:18px;display:flex;justify-content:center;gap:14px;font-size:12.5px}
.login-actions a{color:var(--muted)}
.login-actions a:hover{color:var(--text)}

/* ---------- admin shell ---------- */
.admin{display:flex;min-height:100vh}
.admin-side{width:236px;flex:none;background:var(--surface);border-right:1px solid var(--border);
  padding:18px 14px;display:flex;flex-direction:column;gap:6px;position:sticky;top:0;height:100vh}
.side-brand{display:flex;align-items:center;gap:10px;padding:8px 10px 18px;font-weight:800;font-size:16px;font-family:var(--font-display)}
.side-item{display:flex;align-items:center;gap:11px;padding:11px 13px;border-radius:var(--r-md);
  font-size:14px;font-weight:600;color:var(--text-2);transition:.15s;width:100%;text-align:left}
.side-item svg{width:18px;height:18px;flex:none}
.side-item:hover{background:var(--surface-2);color:var(--text)}
.side-item.active{background:var(--accent);color:var(--accent-ink)}
.side-item.active svg{color:var(--accent-ink)}
.side-gap{flex:1}
.side-logout{color:var(--danger)}
.side-logout:hover{background:rgba(255,107,107,.12)}
.side-save,.side-save:hover{background:var(--accent);color:var(--accent-ink)}
.side-import,.side-import:hover{background:var(--surface-2);color:var(--text);border:1px solid var(--border)}
.data-warn{margin:0 0 20px;padding:12px 16px;border-radius:var(--r-md);font-size:13px;line-height:1.7;
  background:color-mix(in srgb,var(--accent) 14%,transparent);border:1px solid color-mix(in srgb,var(--accent) 45%,transparent);color:var(--text-2)}
.data-warn b{color:var(--text)}
/* 管理区更宽：减少两侧留白，让编辑框铺满 */
.admin-main{flex:1;min-width:0;padding:24px 22px 60px;background:var(--bg-soft)}
@media(min-width:1400px){.admin-main{padding:26px 34px 60px}}
.admin-head{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-bottom:8px}
.admin-head h2{margin:0;font-size:24px;font-weight:800;font-family:var(--font-display)}
.panel-desc{color:var(--muted);font-size:13.5px;margin:0 0 22px;max-width:900px}
.cat-list{display:flex;flex-direction:column;gap:18px}
.cat-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--r-md);padding:16px 18px}
.cat-head{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-bottom:12px}
.cat-head input.cat-name,.cat-head input.sub-name{background:var(--surface-2);border:1px solid var(--border);
  border-radius:var(--r-sm);padding:7px 11px;font-weight:700;font-size:15px;min-width:150px;outline:none}
.cat-head input:focus{border-color:var(--accent)}
.cat-head .spacer{margin-left:auto}
.badge{font-size:11px;font-weight:700;padding:3px 9px;border-radius:var(--r-pill);background:var(--surface-3);color:var(--text-2);letter-spacing:.04em}
.badge.lv1{background:var(--accent);color:var(--accent-ink)}
.cat-meta{font-size:12px;color:var(--muted)}
.sub-list{margin-top:16px;padding-left:16px;border-left:2px solid var(--border-soft);display:flex;flex-direction:column;gap:16px}
.sub-card{background:var(--surface-2);border:1px solid var(--border-soft);border-radius:var(--r-sm);padding:14px 16px}
.sub-card .cat-head{margin-bottom:10px}
.ta-label{font-size:12px;color:var(--muted);font-weight:600;margin-bottom:6px;display:flex;align-items:center;gap:8px}
.ta-label b{color:var(--text-2)}
/* 图片外链文本框：整宽铺满 + 加大高度，便于逐行粘贴 */
.cat-card textarea,.sub-card textarea{
  width:100%;min-height:200px;resize:vertical;
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:12.5px;line-height:1.8;
  background:var(--surface-2);border:1px solid var(--border);border-radius:var(--r-sm);padding:12px 14px;outline:none;
}
.sub-card textarea{min-height:160px;background:var(--surface)}
.cat-card textarea:focus,.sub-card textarea:focus{border-color:var(--accent)}
.data-actions{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:6px}

/* ---------- toast ---------- */
#toast{position:fixed;left:50%;bottom:34px;transform:translateX(-50%) translateY(20px);z-index:300;
  background:var(--surface);border:1px solid var(--border);color:var(--text);
  padding:12px 20px;border-radius:var(--r-pill);box-shadow:var(--shadow);font-size:13.5px;font-weight:600;
  opacity:0;pointer-events:none;transition:.25s ease;display:flex;align-items:center;gap:9px}
#toast.show{opacity:1;transform:translateX(-50%) translateY(0)}
#toast svg{width:16px;height:16px}
#toast.err svg{color:var(--danger)}

@media(max-width:760px){
  .admin{flex-direction:column}
  .admin-side{width:100%;height:auto;position:static;flex-direction:row;overflow-x:auto;gap:8px;padding:12px}
  .side-brand,.side-gap{display:none}
  .side-item{width:auto;white-space:nowrap}
  .admin-main{padding:18px 14px 50px}
  .nav-right{width:100%}
  .search{flex:1;min-width:0}
}

/* ============================================================
 * v3 新增：导航图标 / 右侧边栏 / 自定义页脚 / 后台编辑器 / 图标选择器 / 拖动排序
 * ============================================================ */
/* ---------- nav icon ---------- */
.nav-item{display:inline-flex;align-items:center;gap:7px}
.nav-ico{display:inline-flex;align-items:center;line-height:0}
.nav-ico svg,.nav-ico i,.nav-item i{font-size:15px;width:15px;height:15px;text-align:center}
.nav-ico img{width:16px;height:16px;border-radius:4px;object-fit:cover}

/* ---------- brand logo image ---------- */
.brand-logo{width:36px;height:36px;border-radius:11px;object-fit:cover;flex:none;border:1px solid var(--border)}

/* ---------- right floating rail (sidebar) ---------- */
.rail{position:fixed;right:16px;top:58%;transform:translateY(-50%);z-index:90;display:flex;flex-direction:column;gap:10px}
.rail-item{position:relative;width:46px;height:46px;border-radius:14px;display:grid;place-items:center;
  background:var(--surface);border:1px solid var(--border);box-shadow:var(--shadow-sm);color:var(--text-2);transition:.16s}
.rail-item:hover{color:var(--text);transform:translateX(-3px);border-color:var(--muted)}
.rail-item svg,.rail-item i{width:20px;height:20px;font-size:19px;line-height:1}
.rail-tip{position:absolute;right:calc(100% + 12px);top:50%;transform:translateY(-50%);
  background:var(--surface-3);color:var(--text);border:1px solid var(--border);border-radius:10px;
  padding:6px 12px;font-size:12.5px;white-space:nowrap;box-shadow:var(--shadow-sm);display:none;pointer-events:none}
.rail-item:hover .rail-tip{display:block}
.rail-preview{position:absolute;right:calc(100% + 14px);top:50%;transform:translateY(-50%);
  width:230px;padding:8px;background:var(--surface);border:1px solid var(--border);border-radius:14px;
  box-shadow:var(--shadow);display:none;pointer-events:none}
.rail-preview img{width:100%;border-radius:8px;display:block}
.rail-preview b{display:block;font-size:12.5px;margin-top:6px;color:var(--text-2);text-align:center}
.rail-item.has-preview:hover .rail-preview{display:block}
.rail-item.has-preview:hover .rail-tip{display:none}
@media(max-width:900px){.rail{right:10px;gap:8px}.rail-item{width:42px;height:42px}.rail-preview{display:none!important}}

/* ---------- custom footer ---------- */
.foot{max-width:var(--maxw);margin:0 auto;padding:26px 22px 40px;border-top:1px solid var(--border);
  color:var(--muted);font-size:12.5px;display:flex;justify-content:space-between;gap:18px;flex-wrap:wrap;align-items:center}
.foot a{color:var(--muted)}.foot a:hover{color:var(--text)}
.foot-links{display:flex;gap:14px;flex-wrap:wrap;align-items:center}
.foot-brand{display:flex;align-items:center;gap:10px;color:var(--text-2);font-weight:700}
.foot-brand img{width:30px;height:30px;border-radius:8px;object-fit:cover}
.foot-col{display:flex;flex-direction:column;gap:6px;min-width:180px}

/* ---------- admin: site editors ---------- */
.grid2{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:16px}
.editor-row{display:flex;gap:10px;align-items:center;flex-wrap:wrap;margin-bottom:10px}
.editor-row .field{margin:0;flex:1;min-width:150px}
.edit-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:12px}
.drag-item{display:flex;align-items:center;gap:10px;background:var(--surface);border:1px solid var(--border);
  border-radius:var(--r-md);padding:10px 12px;margin-bottom:8px}
.drag-item .grip{cursor:grab;color:var(--muted);flex:none;display:grid;place-items:center;touch-action:none}
.drag-item .grip:active{cursor:grabbing}
.drag-item.dragging{opacity:.45;border-style:dashed}
.drag-item.drop-before{border-top:3px solid var(--accent)}
.drag-item.drop-after{border-bottom:3px solid var(--accent)}
.drag-item .grow{flex:1;min-width:0}
.drag-item input[type=text],.drag-item select{background:var(--surface-2);border:1px solid var(--border);
  border-radius:var(--r-sm);padding:8px 10px;outline:none;width:100%}
.drag-item input[type=text]:focus,.drag-item select:focus{border-color:var(--accent)}
.icon-btn-sm{width:36px;height:36px;border-radius:10px;display:grid;place-items:center;background:var(--surface-2);border:1px solid var(--border);flex:none;color:var(--text-2)}
.icon-btn-sm:hover{background:var(--surface-3);color:var(--text)}
.icon-btn-sm svg,.icon-btn-sm i{width:16px;height:16px;font-size:15px}
.icon-preview{width:36px;height:36px;border-radius:10px;display:grid;place-items:center;background:var(--surface-2);border:1px solid var(--border);flex:none;color:var(--text-2)}
.icon-preview i,.icon-preview svg{font-size:17px;width:17px;height:17px}
.switch{display:inline-flex;align-items:center;gap:10px;padding:11px 15px;background:var(--surface);border:1px solid var(--border);border-radius:var(--r-md);cursor:pointer;font-size:13.5px;font-weight:600}
.switch input{width:40px;height:22px;accent-color:var(--accent);cursor:pointer}
.switch.on{border-color:var(--accent)}
.hint-md{font-size:12.5px;color:var(--muted);margin:6px 0 0}
.sec-title{font-size:15px;font-weight:800;margin:26px 0 12px;font-family:var(--font-display)}
.sec-title:first-child{margin-top:0}

/* ---------- icon picker modal ---------- */
.iconpick{position:fixed;inset:0;z-index:400;background:var(--overlay);backdrop-filter:blur(5px);display:none;align-items:center;justify-content:center;padding:24px}
.iconpick.open{display:flex}
.iconpick-box{width:min(780px,96vw);max-height:84vh;overflow:auto;background:var(--surface);border:1px solid var(--border);
  border-radius:var(--r-lg);box-shadow:var(--shadow);padding:20px}
.iconpick-box h3{margin:0 0 6px;font-family:var(--font-display)}
.iconpick-src{font-size:12px;color:var(--muted);margin:0 0 14px}
.iconpick-input{width:100%;margin-bottom:14px;background:var(--surface-2);border:1px solid var(--border);border-radius:var(--r-sm);padding:10px 13px;outline:none}
.iconpack-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(58px,1fr));gap:8px}
.iconpack-grid button{aspect-ratio:1;border-radius:12px;background:var(--surface-2);border:1px solid var(--border);
  display:grid;place-items:center;font-size:20px;color:var(--text-2);transition:.12s}
.iconpack-grid button:hover{background:var(--accent);color:var(--accent-ink);border-color:transparent;transform:translateY(-2px)}
.iconpick-custom{display:flex;gap:10px;align-items:center;margin:16px 0 4px;flex-wrap:wrap}
.iconpick-custom input{flex:1;min-width:180px;background:var(--surface-2);border:1px solid var(--border);border-radius:var(--r-sm);padding:9px 12px;outline:none}

/* ============================================================
 * v3 新增：图片集列表 + 电子书式阅读器
 * ============================================================ */
.masonry.portrait{column-count:6}
@media(max-width:1600px){.masonry.portrait{column-count:5}}
@media(max-width:1240px){.masonry.portrait{column-count:4}}
@media(max-width:940px){.masonry.portrait{column-count:3}}
@media(max-width:640px){.masonry.portrait{column-count:2}}

.gal-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:20px}
.gal-card{display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--border);
  border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--shadow-sm);transition:.18s}
.gal-card:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:var(--muted)}
.gal-cover{display:block;aspect-ratio:16/10;background:var(--surface-2);overflow:hidden}
.gal-cover img{width:100%;height:100%;object-fit:cover;transition:transform .35s}
.gal-card:hover .gal-cover img{transform:scale(1.05)}
.gal-body{display:flex;flex-direction:column;gap:5px;padding:15px 16px 17px}
.gal-body b{font-size:16.5px;font-family:var(--font-display)}
.gal-body em{font-style:normal;font-size:12px;color:var(--accent);font-weight:700}
.gal-desc{font-size:13px;color:var(--muted);line-height:1.55;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}

/* ---------- reader ---------- */
.reader{max-width:1200px;margin:0 auto}
.reader-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-bottom:16px}
.reader-title h1{margin:0;font-family:var(--font-display);font-size:clamp(21px,3vw,30px);font-weight:800}
.reader-title p{margin:6px 0 0;color:var(--muted);font-size:13.5px}
.reader-actions{display:flex;gap:10px;flex-wrap:wrap}
.reader-stage{position:relative;display:flex;align-items:center;background:var(--surface);border:1px solid var(--border);
  border-radius:var(--r-lg);box-shadow:var(--shadow);overflow:hidden;height:min(72vh,760px)}
.reader-stage:fullscreen{height:100vh;border-radius:0;border:none}
.reader-track{display:flex;height:100%;width:100%;will-change:transform}
.reader-slide{flex:0 0 100%;width:100%;height:100%;display:grid;place-items:center;background:var(--bg-soft);position:relative}
.reader-slide img{max-width:100%;max-height:100%;object-fit:contain;user-select:none;-webkit-user-drag:none}
.reader-nav{position:absolute;top:50%;transform:translateY(-50%);width:46px;height:70px;display:grid;place-items:center;
  background:var(--surface-3);color:var(--text);border:1px solid var(--border);z-index:5;opacity:.7;transition:.15s}
.reader-nav:hover{opacity:1;background:var(--accent);color:var(--accent-ink)}
.reader-nav.prev{left:0;border-radius:0 14px 14px 0}
.reader-nav.next{right:0;border-radius:14px 0 0 14px}
.reader-nav.prev svg{transform:rotate(90deg)}
.reader-nav.next svg{transform:rotate(-90deg)}
.reader-nav svg{width:22px;height:22px}
.reader-foot{display:flex;align-items:center;justify-content:center;gap:16px;flex-wrap:wrap;margin-top:16px}
.reader-dots{display:flex;gap:7px;flex-wrap:wrap;justify-content:center;max-width:60%}
.reader-dot{width:9px;height:9px;border-radius:50%;background:var(--border);transition:.15s}
.reader-dot:hover{background:var(--muted)}
.reader-dot.active{background:var(--accent);width:22px;border-radius:999px}
.reader-count{font-size:13px;color:var(--muted);font-weight:700;font-variant-numeric:tabular-nums}
.reader-count b{color:var(--text)}
@media(max-width:640px){.reader-stage{height:min(62vh,560px)}.reader-dots{max-width:100%}}

/* ---------- mobile nav (hamburger) v3 ---------- */
.nav-toggle{display:none;align-items:center;justify-content:center;width:40px;height:40px;border-radius:12px;
  background:var(--surface-2);border:1px solid var(--border);color:var(--text);cursor:pointer}
.nav-toggle svg{width:20px;height:20px}
@media(max-width:760px){
  .nav-toggle{display:inline-flex;margin-left:auto;order:2}
  .nav-links{display:none}
  body.nav-open .nav-links{display:flex;flex-direction:column;align-items:stretch;width:100%;gap:2px;padding-top:8px;order:10}
  body.nav-open .nav-links .nav-item{width:100%}
  body.nav-open .nav-menu{display:none!important}
  .nav-cat-btn svg{display:none}
  body.nav-open .nav-toggle{background:var(--accent);color:var(--accent-ink)}
}

/* ---------- mobile nav v4: 仅 logo + 搜索框 + 汉堡按钮；折叠导航；隐藏侧边栏 ---------- */
@media (max-width: 760px) {
  .nav-inner { flex-wrap: wrap; gap: 10px; padding: 10px 16px; align-items: center; }
  .brand { order: 1; flex: 0 0 auto; }
  .brand small { display: none; }
  .nav-right { order: 2; flex: 1 1 auto; min-width: 0; margin-left: 0; flex-wrap: nowrap; gap: 8px; }
  .nav-right .icon-btn,
  .nav-right .btn { display: none !important; }
  .nav-right .search { width: 100%; min-width: 0; }
  .nav-right .search input { font-size: 13px; }
  .nav-toggle { display: inline-flex; order: 3; margin-left: 0; }
  .nav-links { display: none; order: 4; width: 100%; }
  body.nav-open .nav-links {
    display: flex; flex-direction: column; align-items: stretch; gap: 2px;
    width: 100%; padding-top: 8px; margin-top: 4px; border-top: 1px solid var(--border);
  }
  body.nav-open .nav-links .nav-item { width: 100%; justify-content: flex-start; }
  body.nav-open .nav-menu {
    position: static; display: flex !important; flex-direction: column; box-shadow: none;
    border: none; border-left: 2px solid var(--border); margin: 2px 0 8px 14px; min-width: 0; opacity: 1;
  }
  body.nav-open .nav-menu a { white-space: normal; }
  .nav-cat-btn svg { display: none; }
  body.nav-open .nav-toggle { background: var(--accent); color: var(--accent-ink); }
  .rail { display: none !important; }
}

/* ---------- 三级分类标签（仅用于归类，不进入导航菜单） ---------- */
.tag-bar { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; margin: 0 0 18px; }
.tag-bar .tag-label { font-size: 12px; letter-spacing: .12em; text-transform: uppercase; color: var(--muted); margin-right: 2px; }
.tag { display: inline-flex; align-items: center; gap: 6px; padding: 6px 13px; border-radius: 999px;
  border: 1px dashed var(--border); color: var(--text); font-size: 13px; line-height: 1;
  background: transparent; transition: all .18s ease; text-decoration: none; }
.tag b { font-weight: 600; opacity: .55; font-size: 11px; }
.tag:hover { border-color: var(--accent); color: var(--accent); }
.tag.active { background: var(--accent-soft, rgba(99,102,241,.14)); border-style: solid; border-color: var(--accent); color: var(--accent); }

/* ---------- 前台卡片：标题 + 标签 ---------- */
.wall-card .card-tags{display:flex;flex-wrap:wrap;gap:6px;padding:0 12px 11px}
.wall-card .card-tag{font-size:11px;line-height:1;padding:4px 9px;border-radius:999px;background:var(--surface-3);color:var(--text-2);border:1px solid var(--border)}

/* ============================================================
 * v4 视觉优化：卡片、标题、标签、分类色、导航
 * ============================================================ */
:root{--r-md:14px;--r-lg:20px;--gap:18px}

/* 顶栏更通透 */
.nav{background:color-mix(in srgb,var(--bg) 82%,transparent);backdrop-filter:saturate(160%) blur(14px);-webkit-backdrop-filter:saturate(160%) blur(14px)}
.brand-mark{box-shadow:0 8px 20px -8px var(--accent)}
.nav-item{transition:background .16s,color .16s,transform .16s}
.nav-item:hover{transform:translateY(-1px)}

/* 页头 */
.page-head h1{background:linear-gradient(120deg,var(--text),color-mix(in srgb,var(--text) 55%,var(--accent)));-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.page-head p{font-size:13.5px}

/* 分类 chips：每类一色圆点 */
.chip{position:relative;transition:transform .16s,border-color .16s,background .16s,box-shadow .16s}
.chip::before{content:'';width:8px;height:8px;border-radius:50%;background:var(--cc,var(--accent));display:inline-block;margin-right:7px;vertical-align:middle}
.chip:hover{border-color:var(--cc,var(--muted));transform:translateY(-1px)}
.chip.active{background:var(--cc,var(--accent));color:#fff;border-color:transparent;box-shadow:0 8px 20px -8px var(--cc,var(--accent))}
.chip.active::before{background:#fff}

/* 卡片：更柔和的圆角与悬停 */
.wall-card{border-radius:16px;transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;will-change:transform}
.wall-card:hover{transform:translateY(-4px);box-shadow:0 22px 48px -20px rgba(0,0,0,.45);border-color:color-mix(in srgb,var(--muted) 55%,transparent)}
.wall-btn{overflow:hidden}
.wall-btn img{transition:transform .5s cubic-bezier(.2,.7,.2,1)}
.wall-card:hover .wall-btn img{transform:scale(1.045)}
.wall-card figcaption{padding:11px 13px 4px;border-top:none}
.wall-card figcaption b{font-size:13px;font-weight:700;letter-spacing:.1px}
.wall-card figcaption span{font-size:11.5px;padding:3px 9px;border-radius:999px;background:var(--surface-3);color:var(--muted)}
.wall-card .card-tags{padding:8px 13px 13px}
.wall-card .card-tag{font-size:11px;line-height:1;padding:4px 10px;border-radius:999px;background:color-mix(in srgb,var(--accent) 14%,transparent);color:var(--accent-2);border:1px solid color-mix(in srgb,var(--accent) 30%,transparent);font-weight:600}
html[data-theme="dark"] .wall-card .card-tag{color:var(--accent)}

/* 标签栏（二级页） */
.tag{padding:7px 15px;border-radius:999px;border:1px solid var(--border);background:var(--surface-2);font-weight:600;transition:transform .15s,background .15s,border-color .15s}
.tag:hover{transform:translateY(-1px);background:var(--surface-3)}
.tag.active{background:var(--accent);color:var(--accent-ink);border-color:transparent}
.tag b{opacity:.65;font-weight:700}

/* 空状态更柔和 */
.empty{border-radius:var(--r-lg);background:color-mix(in srgb,var(--surface) 60%,transparent)}