/* ===== WPS 下载官网 · 前台样式 ===== */
:root{
  --brand:#2b6cf6;
  --brand-2:#1e4fd8;
  --ink:#0f1d3a;
  --ink-2:#4a5875;
  --muted:#8a95ab;
  --line:#e8ecf5;
  --bg:#f7f9fd;
  --card:#fff;
  --radius:16px;
  --shadow:0 6px 24px rgba(20,40,90,.07);
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Helvetica Neue",Arial,sans-serif;
  color:var(--ink);background:var(--bg);line-height:1.7;-webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
img{max-width:100%}
h1,h2,h3,h4{margin:0 0 .4em;line-height:1.3;font-weight:700}
p{margin:0 0 1em}
.muted{color:var(--muted)}
.wrap{max-width:1180px;margin:0 auto;padding:0 20px}

/* --- 按钮 --- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;
  padding:10px 20px;border-radius:10px;font-size:15px;font-weight:600;border:1px solid transparent;
  transition:.18s;cursor:pointer}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 6px 18px rgba(43,108,246,.28)}
.btn-primary:hover{background:var(--brand-2);transform:translateY(-1px)}
.btn-ghost{background:#fff;color:var(--ink);border-color:var(--line)}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand)}
.btn-lg{padding:13px 28px;font-size:16px;border-radius:12px}
.btn-sm{padding:7px 14px;font-size:14px}

/* --- 头部 --- */
.hd{position:sticky;top:0;z-index:60;background:rgba(255,255,255,.92);backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line)}
.hd-in{display:flex;align-items:center;gap:24px;height:64px}
.logo{display:flex;align-items:center;gap:9px;font-weight:800;font-size:18px;letter-spacing:.2px}
.logo-mark{display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;
  border-radius:9px;background:linear-gradient(135deg,var(--brand),#6ea0ff);color:#fff;font-style:normal;font-size:17px}
.nav{display:flex;gap:4px;margin-left:8px;flex:1}
.nav a{padding:8px 14px;border-radius:9px;font-size:15px;color:var(--ink-2);font-weight:500}
.nav a:hover{background:#eef3ff;color:var(--brand)}
.nav a.on{color:var(--brand);background:#eaf1ff;font-weight:700}
.hd-right{margin-left:auto;display:flex;align-items:center;gap:10px}

/* 语言切换 */
.langsel{position:relative}
.lang-btn{display:flex;align-items:center;gap:6px;padding:7px 12px;border:1px solid var(--line);
  background:#fff;border-radius:9px;font-size:14px;cursor:pointer;color:var(--ink)}
.lang-btn:hover{border-color:var(--brand)}
.lang-flag{font-weight:700;color:var(--brand)}
.caret{width:0;height:0;border:4px solid transparent;border-top-color:var(--muted);margin-top:3px}
.lang-menu{display:none;position:absolute;right:0;top:44px;min-width:170px;background:#fff;
  border:1px solid var(--line);border-radius:12px;box-shadow:var(--shadow);padding:6px;z-index:70}
.lang-menu.open{display:block}
.lang-menu a{display:flex;align-items:center;gap:8px;padding:8px 10px;border-radius:8px;font-size:14px}
.lang-menu a:hover{background:#f1f5ff}
.lang-menu a.on{color:var(--brand);font-weight:700}
.lang-menu a b{color:var(--brand);font-size:12px;min-width:22px}
.burger{display:none;flex-direction:column;gap:4px;background:none;border:0;cursor:pointer;padding:8px}
.burger i{display:block;width:20px;height:2px;background:var(--ink);border-radius:2px}

/* --- Hero --- */
.hero{background:linear-gradient(160deg,#eef4ff 0%,#f7f9fd 60%,#fff 100%);
  border-bottom:1px solid var(--line);overflow:hidden}
.hero-in{display:flex;align-items:center;gap:40px;padding:70px 20px}
.hero-text{flex:1;min-width:0}
.hero h1{font-size:40px;line-height:1.25;margin-bottom:14px;letter-spacing:-.5px}
.hero-sub{font-size:17px;color:var(--ink-2);max-width:560px}
.hero-btns{display:flex;gap:12px;flex-wrap:wrap;margin:22px 0 18px}
.hero-meta{display:flex;gap:22px;flex-wrap:wrap;font-size:14px;color:var(--muted)}
.hero-meta b{color:var(--ink);font-size:18px;margin-right:4px}
.hero-art{width:340px;flex:none}
.hero-card{position:relative;height:260px;border-radius:24px;
  background:linear-gradient(135deg,var(--brand),#7aa8ff);box-shadow:0 18px 40px rgba(43,108,246,.28)}
.hero-card span{position:absolute;display:flex;align-items:center;justify-content:center;
  width:70px;height:70px;border-radius:18px;background:#fff;font-size:32px;box-shadow:0 8px 20px rgba(0,0,0,.12)}
.hc-1{left:22px;top:32px}.hc-2{left:135px;top:14px}.hc-3{left:248px;top:32px}
.hc-4{left:60px;top:120px}.hc-5{left:172px;top:120px}.hc-6{left:120px;top:180px}

/* --- 区块 --- */
.sec{padding:60px 0}
.sec-alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.sec-head{text-align:center;margin-bottom:34px}
.sec-head h2{font-size:28px}
.sec-head p{color:var(--muted);margin:0}
.grid{display:grid;gap:20px}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}

/* --- 产品卡 --- */
.pcard{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:26px 22px;box-shadow:var(--shadow);transition:.2s;display:block;position:relative}
.pcard:hover{transform:translateY(-4px);border-color:var(--brand)}
.picon{font-size:34px;line-height:1;margin-bottom:12px}
.pcard h3{font-size:18px}
.ptag{color:var(--muted);font-size:14px;margin-bottom:10px}
.pmeta{font-size:13px;color:var(--muted);margin-bottom:12px}
.psum{font-size:14px;color:var(--ink-2);min-height:44px}
.pbtn{color:var(--brand);font-weight:700;font-size:14px}
.pmeta-list{list-style:none;margin:0 0 14px;padding:0;font-size:13px}
.pmeta-list li{display:flex;justify-content:space-between;padding:5px 0;border-bottom:1px dashed var(--line)}
.pmeta-list span{color:var(--muted)}
.pcard-btns{display:flex;gap:10px;flex-wrap:wrap}

/* --- 卖点 --- */
.fcard{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px}
.fico{font-size:26px;margin-bottom:8px}
.fcard h3{font-size:17px}
.fcard p{font-size:14px;color:var(--ink-2);margin:0}

/* --- 资讯 --- */
.ncard{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px;display:block}
.ncard:hover{border-color:var(--brand)}
.ndate{font-size:13px;color:var(--muted)}
.ncard h3{font-size:17px;margin:.3em 0}
.ncard p{font-size:14px;color:var(--ink-2)}
.nmore{color:var(--brand);font-weight:600;font-size:14px}

/* --- 页头 --- */
.page-head{background:linear-gradient(160deg,#eef4ff,#fff);border-bottom:1px solid var(--line);padding:44px 0 38px}
.page-head h1{font-size:32px}
.page-head p{color:var(--muted);margin:0}
.app-head-in{display:flex;gap:24px;align-items:flex-start}
.app-icon{font-size:56px;line-height:1;background:#fff;border:1px solid var(--line);
  border-radius:18px;padding:14px 18px;box-shadow:var(--shadow)}
.app-tag{color:var(--ink-2);font-size:16px}
.app-meta{display:flex;flex-wrap:wrap;gap:10px;margin:14px 0 18px}
.app-meta span{background:#fff;border:1px solid var(--line);border-radius:10px;padding:6px 12px;font-size:13px}
.app-meta i{color:var(--muted);font-style:normal;margin-right:6px}

/* --- 两栏 --- */
.two-col{display:grid;grid-template-columns:1fr 330px;gap:22px;align-items:start}
.col-main{display:flex;flex-direction:column;gap:20px}
.col-side{display:flex;flex-direction:column;gap:20px;position:sticky;top:84px}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow)}
.card-title{font-size:18px;margin-bottom:14px;padding-bottom:10px;border-bottom:1px solid var(--line)}
.rich{font-size:15px;color:var(--ink-2)}
.rich h3{font-size:17px;margin-top:1.2em;color:var(--ink)}
.rich ul,.rich ol{padding-left:22px;margin:0 0 1em}
.rich li{margin:.3em 0}
.rich b{color:var(--ink)}
.feat-list{gap:14px}
.feat-item{background:var(--bg);border-radius:12px;padding:16px}
.feat-item h4{margin-bottom:4px;font-size:15px}
.feat-item p{margin:0;font-size:14px}

/* --- 下载项 --- */
.dl-item{display:flex;align-items:center;gap:10px;background:var(--bg);border:1px solid var(--line);
  border-radius:12px;padding:12px 14px;margin-bottom:10px;transition:.16s}
.dl-item:hover{border-color:var(--brand);background:#f2f7ff}
.dl-name{flex:1;font-size:14px;font-weight:600}
.dl-size{font-size:12px;color:var(--muted)}
.dl-btn{background:var(--brand);color:#fff;border-radius:8px;padding:5px 12px;font-size:13px;font-weight:600}
.dl-tip{font-size:13px;color:var(--muted);margin:12px 0 0}
.side-list{list-style:none;margin:0;padding:0}
.side-list li a{display:flex;align-items:center;gap:10px;padding:9px 0;border-bottom:1px dashed var(--line);font-size:14px}
.side-list li a:hover{color:var(--brand)}
.side-card{padding:20px}

/* --- 下载中心 --- */
.tabs{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:24px}
.tab{padding:8px 16px;border-radius:999px;background:#fff;border:1px solid var(--line);font-size:14px}
.tab:hover{border-color:var(--brand);color:var(--brand)}
.tab.on{background:var(--brand);color:#fff;border-color:var(--brand);font-weight:600}
.dl-card{margin-bottom:18px}
.dl-head{display:flex;align-items:center;justify-content:space-between;gap:14px;
  padding-bottom:14px;border-bottom:1px solid var(--line);margin-bottom:14px}
.dl-head-l{display:flex;gap:14px;align-items:center}
.dl-ico{font-size:32px}
.dl-head h3{font-size:18px}
.dl-head p{margin:0;font-size:13px}
.dl-item-row{padding:14px 16px}
.dl-os{font-size:13px;margin:8px 0 0}
.tip-card{margin-top:6px}
.tip-card h3{font-size:16px;margin-bottom:8px}
.tip-card p{margin:0;font-size:14px;color:var(--ink-2)}

/* --- 文章 --- */
.post-list{display:flex;flex-direction:column;gap:14px}
.post-item{display:flex;align-items:center;gap:20px;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius);padding:20px 22px;transition:.18s}
.post-item:hover{border-color:var(--brand);transform:translateY(-2px)}
.post-date{flex:none;width:64px;text-align:center;background:var(--bg);border-radius:12px;padding:8px 0}
.post-date b{display:block;font-size:24px;line-height:1}
.post-date span{font-size:12px;color:var(--muted)}
.post-body{flex:1;min-width:0}
.post-body h3{font-size:17px;margin-bottom:4px}
.post-body p{margin:0;font-size:14px;color:var(--ink-2)}
.post-more{color:var(--brand);font-weight:600;font-size:14px;flex:none}
.article-body{padding:30px}
.back-line{margin-top:20px}

/* --- 友情链接 --- */
.link-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-bottom:28px}
.link-item{display:flex;align-items:center;gap:12px;background:#fff;border:1px solid var(--line);
  border-radius:12px;padding:14px;transition:.18s}
.link-item:hover{border-color:var(--brand);transform:translateY(-2px)}
.link-logo{width:38px;height:38px;flex:none;border-radius:10px;background:linear-gradient(135deg,var(--brand),#7aa8ff);
  color:#fff;display:flex;align-items:center;justify-content:center;font-weight:800}
.link-txt{display:flex;flex-direction:column;min-width:0}
.link-txt b{font-size:14px}
.link-txt i{font-style:normal;font-size:12px;color:var(--muted);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.apply-card{max-width:720px}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:16px}
.form-grid label{display:flex;flex-direction:column;gap:6px;font-size:14px}
.form-grid label.full{grid-column:1/-1}
.form-grid input{padding:10px 12px;border:1px solid var(--line);border-radius:10px;font-size:14px;background:#fff}
.form-grid input:focus{outline:none;border-color:var(--brand)}
.alert{padding:12px 16px;border-radius:10px;margin-bottom:18px;font-size:14px}
.alert-ok{background:#eafaf0;color:#127a45;border:1px solid #bfe9cf}
.alert-err{background:#fdecec;color:#b3261e;border:1px solid #f5c2c0}

/* --- 分页 --- */
.pager{display:flex;align-items:center;justify-content:center;gap:8px;flex-wrap:wrap;margin-top:26px}
.page-num{display:inline-flex;min-width:36px;height:36px;align-items:center;justify-content:center;
  border:1px solid var(--line);border-radius:9px;background:#fff;font-size:14px}
.page-num:hover{border-color:var(--brand);color:var(--brand)}
.page-num.on{background:var(--brand);color:#fff;border-color:var(--brand);font-weight:700}

/* --- 404 --- */
.empty-page{text-align:center;padding:60px 20px}
.err-404{font-size:80px;font-weight:900;color:var(--brand);opacity:.25;line-height:1}

/* --- 页脚 --- */
.ft{background:#0f1d3a;color:#c6cfe2;margin-top:40px}
.ft-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:30px;padding:46px 20px 30px}
.ft a{color:#c6cfe2;font-size:14px}
.ft a:hover{color:#fff}
.f-col h4{color:#fff;font-size:15px;margin-bottom:12px}
.f-col{display:flex;flex-direction:column;gap:8px}
.f-about .logo{color:#fff;margin-bottom:6px}
.f-about p{font-size:14px;color:#9aa8c2}
.f-mail{font-size:14px}
.ft-bottom{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
  border-top:1px solid rgba(255,255,255,.1);padding:16px 20px;font-size:13px;color:#8b98b4}
.icp{color:#8b98b4}

/* --- 风格变体（后台「网站管理」切换） --- */
.skin-2{--radius:10px}
.skin-2 .hero{background:linear-gradient(160deg,#eaf7ff 0%,#f7f9fd 60%,#fff 100%)}
.skin-3{--radius:22px}
.skin-3 .pcard,.skin-3 .card{box-shadow:0 10px 30px rgba(20,40,90,.1)}
.skin-4 .hero{background:linear-gradient(160deg,#fff6ee 0%,#f7f9fd 60%,#fff 100%)}
.skin-4 .logo-mark,.skin-4 .link-logo{background:linear-gradient(135deg,#ff8a3d,#ffb56b)}

/* --- 响应式 --- */
@media (max-width:1000px){
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .two-col{grid-template-columns:1fr}
  .col-side{position:static}
  .link-grid{grid-template-columns:repeat(2,1fr)}
  .ft-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:760px){
  .hd-in{height:58px}
  .nav{display:none;position:absolute;left:0;right:0;top:58px;background:#fff;
    flex-direction:column;padding:10px;border-bottom:1px solid var(--line);box-shadow:var(--shadow)}
  .nav.open{display:flex}
  .burger{display:flex}
  .hero-in{flex-direction:column;padding:40px 20px;text-align:center}
  .hero h1{font-size:28px}
  .hero-art{width:100%;max-width:320px}
  .hero-btns,.hero-meta{justify-content:center}
  .grid-3,.grid-4{grid-template-columns:1fr}
  .link-grid{grid-template-columns:1fr}
  .ft-grid{grid-template-columns:1fr}
  .app-head-in{flex-direction:column}
  .post-item{flex-direction:column;align-items:flex-start;gap:10px}
  .form-grid{grid-template-columns:1fr}
  .article-body{padding:20px}
}