/* =========================================================
   壁纸星球 WallHub - Pixabay 风格
   ========================================================= */
:root{
  --brand:#1c7ed6; --brand-2:#228be6; --brand-dark:#1864ab;
  --ink:#101828; --ink-2:#475467; --ink-3:#98a2b3;
  --bg:#fbfcfe; --card:#fff; --line:#e8edf4; --line-2:#d0d7e2;
  --shadow:0 1px 2px rgba(16,24,40,.06),0 6px 20px rgba(16,24,40,.06);
  --shadow-h:0 12px 32px rgba(28,126,214,.18);
  --radius:12px; --maxw:1320px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:"-apple-system","PingFang SC","Microsoft YaHei",Roboto,"Segoe UI",sans-serif;color:var(--ink);background:var(--bg);font-size:14px;line-height:1.6;-webkit-font-smoothing:antialiased}
a{text-decoration:none;color:inherit} img{max-width:100%;display:block} button{font-family:inherit;cursor:pointer} input,select,textarea{font-family:inherit}
::selection{background:var(--brand);color:#fff}

/* ---------- 顶栏 ---------- */
.topbar{position:sticky;top:0;z-index:100;background:#fff;border-bottom:1px solid var(--line);box-shadow:0 1px 2px rgba(16,24,40,.04)}
.tb-inner{max-width:var(--maxw);margin:0 auto;padding:0 20px;height:60px;display:flex;align-items:center;gap:18px}
.logo{display:flex;align-items:center;gap:8px;flex-shrink:0}
.logo-ico{width:34px;height:34px;border-radius:9px;background:linear-gradient(135deg,#1c7ed6,#7048e8);color:#fff;display:grid;place-items:center;font-size:17px}
.logo-txt{font-size:18px;font-weight:800;line-height:1}
.logo-txt i{display:block;font-style:normal;font-size:10px;color:var(--ink-3);letter-spacing:2px;margin-top:2px}
.tb-nav{display:flex;gap:2px;overflow-x:auto;flex:0 1 auto}
.tb-nav a{padding:8px 13px;border-radius:8px;font-weight:600;color:var(--ink-2);white-space:nowrap;transition:.15s}
.tb-nav a:hover{color:var(--brand);background:#eef5fd}
.tb-nav a.on{color:var(--brand);background:#e3f0fc}
.tb-search{flex:1;display:flex;align-items:center;border:1px solid var(--line-2);border-radius:9px;overflow:hidden;background:#fff;transition:.2s}
.tb-search:focus-within{border-color:var(--brand);box-shadow:0 0 0 3px rgba(28,126,214,.12)}
.tb-search input{flex:1;height:38px;border:none;padding:0 12px;font-size:13px;min-width:0;background:transparent}
.tb-search input:focus{outline:none}
.tb-search button{width:44px;height:38px;border:none;background:#f1f5fb;color:var(--ink-2);display:grid;place-items:center}
.tb-actions{display:flex;align-items:center;gap:10px;flex-shrink:0}
.btn-upload{padding:9px 16px;border-radius:8px;background:var(--brand);color:#fff;font-weight:700;font-size:13px}
.btn-upload:hover{background:var(--brand-dark)}
.btn-ghost{padding:9px 16px;border-radius:8px;border:1px solid var(--line-2);color:var(--ink-2);font-weight:600;font-size:13px}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand)}
.btn-solid{padding:9px 16px;border-radius:8px;background:var(--brand);color:#fff;font-weight:700;font-size:13px;border:none}
.btn-solid:hover{background:var(--brand-dark)}
.btn-solid.big{padding:12px 26px;font-size:14px;border-radius:10px}
.btn-ghost.big{padding:12px 26px;font-size:14px;border-radius:10px}
.user-menu{position:relative}
.user-btn{border:1px solid var(--line-2);background:#fff;border-radius:8px;padding:8px 14px;font-size:13px;font-weight:600;display:flex;align-items:center;gap:6px}
.user-btn .caret{font-size:10px;color:var(--ink-3)}
.menu-drop{position:absolute;right:0;top:calc(100%+8px);background:#fff;border:1px solid var(--line);border-radius:10px;box-shadow:var(--shadow);min-width:150px;padding:6px;display:none;z-index:50}
.user-menu:hover .menu-drop{display:block}
.menu-drop a{display:block;padding:9px 12px;border-radius:7px;font-size:13px;color:var(--ink-2)}
.menu-drop a:hover{background:#f1f5fb;color:var(--brand)}

/* ---------- Hero ---------- */
.hero{position:relative;color:#fff;padding:64px 20px 56px;text-align:center;overflow:hidden;background:linear-gradient(180deg,#0b1220,#12233d)}
.hero-bg{position:absolute;inset:0;background:url('/uploads/mountain_sunrise.jpg') center/cover no-repeat;opacity:.28}
.hero-shade{position:absolute;inset:0;background:radial-gradient(120% 120% at 50% 0%,transparent 30%,#0b1220 88%)}
.hero-content{position:relative;z-index:2;max-width:740px;margin:0 auto}
.hero-content h1{font-size:40px;font-weight:900;line-height:1.2;margin-bottom:12px;letter-spacing:-.5px}
.hero-content p{font-size:17px;color:rgba(255,255,255,.82);margin-bottom:28px}
.hero-search{display:flex;gap:10px;max-width:600px;margin:0 auto 22px}
.hero-search input{flex:1;height:52px;border:none;border-radius:11px;padding:0 18px;font-size:15px;background:#fff;color:var(--ink)}
.hero-search input:focus{outline:none;box-shadow:0 0 0 4px rgba(28,126,214,.3)}
.hero-search button{height:52px;padding:0 30px;border:none;border-radius:11px;background:var(--brand);color:#fff;font-size:15px;font-weight:700}
.hero-search button:hover{background:var(--brand-dark)}
.hero-pops{font-size:13px;color:rgba(255,255,255,.7)}
.hero-pops a{color:#9bddff;margin:0 7px;font-weight:600}
.hero-pops a:hover{text-decoration:underline}

/* ---------- 图库 ---------- */
.gallery{max-width:var(--maxw);margin:0 auto;padding:36px 20px 70px}
.grid-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px}
.grid-head h2{font-size:24px;font-weight:800;padding-left:12px;border-left:4px solid var(--brand);line-height:1.2}
.grid-tools{display:flex;align-items:center;gap:14px}
.total{font-size:13px;color:var(--ink-3)}
.sort-sel{height:38px;border:1px solid var(--line-2);border-radius:9px;padding:0 12px;font-size:13px;background:#fff;color:var(--ink-2);cursor:pointer}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:20px}
.wall-card{position:relative;border-radius:var(--radius);overflow:hidden;background:var(--card);border:1px solid var(--line);box-shadow:var(--shadow);cursor:pointer;transition:transform .2s,box-shadow .2s,border-color .2s}
.wall-card:hover{transform:translateY(-3px);border-color:var(--brand);box-shadow:var(--shadow-h)}
.wall-thumb{position:relative;aspect-ratio:16/10;overflow:hidden;background:#eef2f7}
.wall-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.wall-card:hover .wall-thumb img{transform:scale(1.06)}
.wall-overlay{position:absolute;left:0;right:0;bottom:0;padding:12px;display:flex;gap:8px;justify-content:flex-end;opacity:0;transition:.25s;background:linear-gradient(180deg,transparent,rgba(0,0,0,.5))}
.wall-card:hover .wall-overlay{opacity:1}
.w-btn{padding:8px 14px;border:none;border-radius:8px;font-size:13px;font-weight:700}
.w-btn.dl{background:#fff;color:var(--ink)}
.w-btn.dl:hover{background:#f0f0f0}
.w-btn.fav{background:rgba(255,255,255,.92);color:#e0246b;font-size:15px;line-height:1}
.w-btn.fav.liked{background:#e0246b;color:#fff}
.wall-meta{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:12px 14px}
.wall-title{font-size:14px;font-weight:700;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.wall-res{font-size:12px;color:var(--ink-3);background:#f1f5fb;padding:3px 8px;border-radius:6px;flex-shrink:0}
.load-more{text-align:center;margin-top:34px}
.btn-load{padding:12px 30px;border:1px solid var(--line-2);background:#fff;border-radius:10px;font-size:14px;font-weight:700;color:var(--ink-2)}
.btn-load:hover{border-color:var(--brand);color:var(--brand)}
.empty{text-align:center;padding:60px 20px;color:var(--ink-3)}
.empty-ico{font-size:44px;margin-bottom:10px}
.empty p{font-size:17px;font-weight:700;color:var(--ink-2);margin-bottom:6px}
.empty a{color:var(--brand);font-weight:600}

/* ---------- 详情页 ---------- */
.detail{max-width:var(--maxw);margin:0 auto;padding:28px 20px 70px}
.crumb{font-size:13px;color:var(--ink-3);margin-bottom:18px}
.crumb a{color:var(--ink-3)} .crumb a:hover{color:var(--brand)}
.detail-grid{display:grid;grid-template-columns:1fr 340px;gap:26px;background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden;box-shadow:var(--shadow)}
.dpic{background:#0b1220;display:flex;align-items:center;justify-content:center;min-height:380px}
.dpic img{width:100%;height:100%;object-fit:contain;max-height:600px}
.dinfo{padding:30px 26px}
.dtitle{font-size:22px;font-weight:800;margin-bottom:18px}
.dauthor{display:flex;align-items:center;gap:10px;margin-bottom:20px}
.avatar{width:40px;height:40px;border-radius:50%;background:linear-gradient(135deg,#1c7ed6,#7048e8);color:#fff;display:grid;place-items:center;font-weight:700}
.dauthor b{display:block;font-size:14px} .dauthor span{font-size:12px;color:var(--ink-3)}
.dstats{display:flex;gap:26px;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:16px 0;margin-bottom:18px}
.dstats div{display:flex;flex-direction:column}
.dstats b{font-size:20px;font-weight:800} .dstats span{font-size:12px;color:var(--ink-3)}
.dmeta{display:flex;gap:18px;font-size:13px;color:var(--ink-2);margin-bottom:14px}
.dtags{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:20px}
.dtags a{font-size:13px;background:#f1f5fb;padding:5px 11px;border-radius:20px;color:var(--ink-2)}
.dtags a:hover{background:var(--brand);color:#fff}
.d-actions{display:flex;gap:12px;margin-bottom:22px}
.license-note{background:#f0f7ff;border-left:4px solid var(--brand);border-radius:10px;padding:14px 16px}
.license-note b{font-size:14px} .license-note p{font-size:13px;color:var(--ink-2);margin-top:4px}
.related{margin-top:44px}
.related h3{font-size:20px;font-weight:800;margin-bottom:18px;padding-left:12px;border-left:4px solid var(--brand)}
.grid.mini{grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:16px}
.wall-card.mini .mini-cap{position:absolute;left:0;right:0;bottom:0;padding:16px 10px 8px;color:#fff;font-size:13px;font-weight:700;background:linear-gradient(transparent,rgba(0,0,0,.7));opacity:0;transition:.2s}
.wall-card.mini:hover .mini-cap{opacity:1}

/* ---------- 认证页 ---------- */
.auth-main{min-height:calc(100vh - 60px);display:flex;align-items:center;justify-content:center;padding:40px 16px;background:#f3f7fb}
.auth-card{width:100%;max-width:400px;background:#fff;border:1px solid var(--line);border-radius:16px;padding:36px 32px;box-shadow:var(--shadow)}
.auth-head{text-align:center;margin-bottom:24px}
.auth-logo{width:48px;height:48px;border-radius:13px;background:linear-gradient(135deg,#1c7ed6,#7048e8);color:#fff;display:grid;place-items:center;font-size:22px;margin:0 auto 12px}
.auth-head h1{font-size:22px;font-weight:800} .auth-head p{font-size:13px;color:var(--ink-3);margin-top:6px}
.auth-form label{display:block;font-size:13px;font-weight:600;margin-bottom:16px}
.auth-form input{width:100%;height:44px;border:1px solid var(--line-2);border-radius:9px;padding:0 13px;font-size:14px;margin-top:6px;background:#fff}
.auth-form input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(28,126,214,.12)}
.auth-form .btn-solid{width:100%;margin-top:6px}
.auth-msg{margin:6px 0 4px;background:#fff1f0;color:#c0392b;border:1px solid #ffd9d5;border-radius:8px;padding:9px 12px;font-size:13px}
.auth-msg.ok{background:#eafaf0;color:#12805c;border-color:#c6f0d9}
.auth-foot{text-align:center;font-size:13px;color:var(--ink-2);margin-top:18px}
.auth-foot a{color:var(--brand);font-weight:600}

/* ---------- 上传页 ---------- */
.upload-main{padding:40px 20px}
.upload-card{max-width:620px;margin:0 auto;background:#fff;border:1px solid var(--line);border-radius:16px;padding:30px;box-shadow:var(--shadow)}
.up-head{margin-bottom:20px}
.up-head h1{font-size:22px;font-weight:800} .up-head p{font-size:13px;color:var(--ink-3);margin-top:6px}
.up-drop{border:2px dashed var(--line-2);border-radius:12px;padding:30px;text-align:center;cursor:pointer;transition:.2s;margin-bottom:20px}
.up-drop.over{border-color:var(--brand);background:#f0f7ff}
.up-ico{font-size:38px;margin-bottom:10px}
.up-drop-inner p b{font-size:15px} .up-drop-inner span{font-size:13px;color:var(--ink-3)}
.up-preview{max-height:260px;margin:0 auto;border-radius:10px}
.up-form label{display:block;font-size:13px;font-weight:600;margin-bottom:14px}
.up-form input,.up-form select{width:100%;height:42px;border:1px solid var(--line-2);border-radius:9px;padding:0 12px;font-size:14px;margin-top:6px;background:#fff}
.up-form input:focus,.up-form select:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(28,126,214,.12)}
.up-cols{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.up-form .btn-solid{width:100%;margin-top:6px}
.up-msg{margin-top:8px;background:#fff1f0;color:#c0392b;border:1px solid #ffd9d5;border-radius:8px;padding:9px 12px;font-size:13px}
.up-msg.ok{background:#eafaf0;color:#12805c;border-color:#c6f0d9}

/* ---------- 个人中心 / 我的上传 ---------- */
.profile-main{max-width:var(--maxw);margin:0 auto;padding:36px 20px 70px}
.profile-card{background:#fff;border:1px solid var(--line);border-radius:14px;padding:26px;box-shadow:var(--shadow);margin-bottom:30px}
.p-head{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap}
.p-avatar{width:58px;height:58px;border-radius:50%;background:linear-gradient(135deg,#1c7ed6,#7048e8);color:#fff;display:grid;place-items:center;font-size:24px;font-weight:800}
.p-info{display:flex;align-items:center;gap:14px}
.p-info h1{font-size:20px;font-weight:800} .p-info span{font-size:13px;color:var(--ink-3)}
.p-block{margin-top:22px;border-top:1px solid var(--line);padding-top:20px}
.p-block h3{font-size:15px;font-weight:800;margin-bottom:14px;padding-left:10px;border-left:3px solid var(--brand)}
.p-block form{display:flex;gap:12px;flex-wrap:wrap}
.p-block input{height:40px;border:1px solid var(--line-2);border-radius:9px;padding:0 12px;font-size:13px;min-width:180px}
.p-block input:focus{outline:none;border-color:var(--brand)}
.profile-fav h3{font-size:18px;font-weight:800;margin-bottom:16px;padding-left:12px;border-left:4px solid var(--brand)}
.my-table{border:1px solid var(--line);border-radius:12px;overflow:hidden;background:#fff;box-shadow:var(--shadow)}
.mt-head,.mt-row{display:grid;grid-template-columns:90px 1fr 90px 90px 110px 110px;align-items:center;gap:10px;padding:12px 16px;border-bottom:1px solid var(--line)}
.mt-head{background:#f7fafd;font-size:13px;font-weight:700;color:var(--ink-2)}
.mt-row:last-child{border-bottom:none}
.mt-row:hover{background:#f0f7ff}
.mt-row img{width:90px;height:54px;object-fit:cover;border-radius:6px}
.mt-title b{display:block;font-size:14px} .mt-title span{font-size:12px;color:var(--ink-3)}
.badge{padding:4px 10px;border-radius:20px;font-size:12px;font-weight:700;width:fit-content}
.badge.ok{background:#eafaf0;color:#12805c} .badge.warn{background:#fff7e6;color:#b7791f} .badge.bad{background:#fff1f0;color:#c0392b}
.mt-data{font-size:13px;color:var(--ink-2)}
.mt-ops a{margin-right:10px;font-size:13px;color:var(--ink-3)}
.mt-ops a:hover{color:var(--brand)}
.mt-ops a[data-del]:hover{color:#c0392b}

/* ---------- 内容页 ---------- */
.page-wrap{max-width:820px;margin:0 auto;padding:46px 20px 70px}
.page-card{background:#fff;border:1px solid var(--line);border-radius:14px;padding:34px;box-shadow:var(--shadow)}
.page-card h1{font-size:24px;font-weight:800;margin-bottom:8px}
.page-card .lead{font-size:15px;color:var(--ink-2);margin-bottom:22px}
.page-card h2{font-size:15px;font-weight:800;margin:22px 0 10px;padding-left:10px;border-left:4px solid var(--brand)}
.page-card p,.page-card li{font-size:14px;color:var(--ink-2);margin-bottom:8px}
.page-card ul{padding-left:20px}

/* ---------- 页脚 ---------- */
.footer{background:#0b1220;color:#c7d0dd;padding:52px 20px 26px;margin-top:40px}
.footer-inner{max-width:var(--maxw);margin:0 auto;display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:30px}
.f-brand b{font-size:19px;color:#fff}
.f-brand p{font-size:13px;color:#8a97a8;margin-top:8px}
.f-col h5{font-size:14px;font-weight:700;color:#fff;margin-bottom:12px}
.f-col a{display:block;font-size:13px;color:#9aa7b8;margin-bottom:8px}
.f-col a:hover{color:#fff}
.footer-copy{max-width:var(--maxw);margin:28px auto 0;padding-top:20px;border-top:1px solid rgba(255,255,255,.08);text-align:center;font-size:13px;color:#6d7a8c}

/* ---------- 灯箱 ---------- */
.lightbox{position:fixed;inset:0;z-index:1000;display:flex;align-items:center;justify-content:center;padding:30px}
.lightbox[hidden]{display:none}
.lb-backdrop{position:absolute;inset:0;background:rgba(8,12,24,.86);backdrop-filter:blur(4px)}
.lb-close{position:absolute;top:18px;right:22px;z-index:5;width:44px;height:44px;border-radius:50%;border:1px solid rgba(255,255,255,.3);background:rgba(255,255,255,.1);color:#fff;font-size:24px}
.lb-close:hover{background:rgba(255,255,255,.25)}
.lb-stage{position:relative;z-index:2;max-width:1100px;width:100%;display:flex;flex-direction:column;gap:12px}
.lb-stage img{width:100%;max-height:76vh;object-fit:contain;border-radius:12px;background:#0b1220}
.lb-bar{display:flex;align-items:center;justify-content:space-between;color:#fff;gap:14px}
.lb-info h3{font-size:17px;font-weight:800} .lb-info span{font-size:13px;color:#a5b4cf}
.lb-acts{display:flex;align-items:center;gap:10px}
.lb-btn{width:42px;height:42px;border-radius:50%;border:1px solid rgba(255,255,255,.3);background:rgba(255,255,255,.1);color:#fff;font-size:18px}
.lb-btn:hover{background:#e0246b}
.lb-btn.liked,.lb-btn.liked2{background:#e0246b}
.lb-download{padding:11px 22px;border-radius:10px;background:var(--brand);color:#fff;font-size:14px;font-weight:700}
.lb-download:hover{background:var(--brand-dark)}

/* ---------- 响应式 ---------- */
@media(max-width:960px){
  .tb-nav{order:3;width:100%;padding:6px 0}
  .tb-inner{flex-wrap:wrap;height:auto;padding:10px 16px;row-gap:8px}
  .tb-search{order:4;flex-basis:100%}
  .tb-actions{margin-left:auto}
  .detail-grid{grid-template-columns:1fr}
  .footer-inner{grid-template-columns:1fr 1fr}
  .grid{grid-template-columns:repeat(auto-fill,minmax(160px,1fr))}
  .hero-content h1{font-size:30px}
  .mt-head,.mt-row{grid-template-columns:70px 1fr 70px 78px;font-size:12px}
  .mt-head span:nth-child(4),.mt-row > :nth-child(4),.mt-row > :nth-child(6){display:none}
}