/* =========================================================
   WPS Office 官网 - 活力橙红风（站群第2套 · www）
   设计基调：暖色渐变、不规则卡片、圆润有活力
   ========================================================= */
:root{
  --primary:#f97316;
  --primary-dark:#ea580c;
  --primary-tint:#fff2e8;
  --accent:#ef4444;
  --accent2:#facc15;
  --ink:#27170d;
  --ink-soft:#7c5c48;
  --line:#fde3cd;
  --bg:#fffaf5;
  --bg-alt:#fff2e2;
  --radius:20px;
  --max:1200px;
}
*{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  font-family:"PingFang SC","Microsoft YaHei","Segoe UI",-apple-system,BlinkMacSystemFont,sans-serif;
  color:var(--ink);background:var(--bg);line-height:1.7;font-size:15px;
}
.container{max-width:var(--max);margin:0 auto;padding:0 24px;}
img,svg{display:block;}

/* ---------- 导航：磨砂玻璃 + 渐变下划线 ---------- */
header{
  position:sticky;top:0;z-index:200;
  background:rgba(255,250,245,0.82);backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
header nav{height:72px;display:flex;align-items:center;justify-content:space-between;}
.logo{display:flex;align-items:center;gap:10px;font-size:21px;font-weight:900;text-decoration:none;color:var(--ink);}
.logo-badge{
  width:34px;height:34px;border-radius:10px;
  background:linear-gradient(135deg,var(--primary),var(--accent));
  display:flex;align-items:center;justify-content:center;flex-shrink:0;
}
.nav-links{list-style:none;display:flex;gap:6px;align-items:center;}
.nav-links a{
  text-decoration:none;color:var(--ink-soft);font-size:14.5px;font-weight:700;
  padding:9px 18px;border-radius:30px;transition:all .25s;
}
.nav-links a:hover{background:var(--primary-tint);color:var(--primary-dark);}
.nav-links a.active{background:linear-gradient(135deg,var(--primary),var(--accent));color:#fff;}
.nav-cta{background:var(--ink)!important;color:#fff!important;}

/* ---------- 通用 ---------- */
section{padding:92px 0;}
.section-header{max-width:640px;margin:0 auto 54px;text-align:center;}
.section-header .tag{color:var(--primary-dark);font-weight:800;font-size:13px;letter-spacing:1px;text-transform:uppercase;}
.section-header h2{font-size:34px;font-weight:900;margin:10px 0 14px;}
.section-header p{color:var(--ink-soft);font-size:15.5px;}
.alt{background:var(--bg-alt);}

/* ---------- Hero：全宽渐变斜切 + 悬浮徽章 ---------- */
.hero{
  position:relative;overflow:hidden;padding:110px 0 90px;text-align:center;
  background:linear-gradient(160deg,#fff2e2 0%,#ffe0c2 55%,#ffd0ad 100%);
}
.hero::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:60px;background:var(--bg);
  clip-path:polygon(0 100%,100% 40%,100% 100%);
}
.hero .container{position:relative;z-index:2;}
.hero-badges{display:flex;justify-content:center;gap:12px;flex-wrap:wrap;margin-bottom:28px;}
.badge{background:#fff;border-radius:30px;padding:7px 16px;font-size:12.5px;font-weight:800;color:var(--primary-dark);box-shadow:0 4px 14px rgba(249,115,22,.18);}
.hero h1{font-size:52px;font-weight:900;line-height:1.18;max-width:820px;margin:0 auto 20px;}
.hero h1 span{background:linear-gradient(135deg,var(--primary),var(--accent));-webkit-background-clip:text;background-clip:text;color:transparent;}
.hero>.container>p{max-width:600px;margin:0 auto 34px;color:var(--ink-soft);font-size:17px;}
.hero-buttons{display:flex;gap:16px;justify-content:center;flex-wrap:wrap;}
.btn-primary{
  display:inline-flex;align-items:center;gap:9px;
  background:linear-gradient(135deg,var(--primary),var(--accent));color:#fff;
  padding:16px 36px;border-radius:50px;font-size:16px;font-weight:800;border:none;cursor:pointer;
  text-decoration:none;box-shadow:0 10px 26px rgba(239,68,68,.28);transition:transform .25s,box-shadow .25s;
}
.btn-primary:hover{transform:translateY(-3px);box-shadow:0 14px 32px rgba(239,68,68,.36);}
.btn-secondary{
  display:inline-flex;align-items:center;gap:8px;background:#fff;color:var(--ink);
  padding:15px 32px;border-radius:50px;font-size:15px;font-weight:800;border:2px solid #fff;cursor:pointer;
  text-decoration:none;transition:all .25s;
}
.btn-secondary:hover{border-color:var(--primary);color:var(--primary-dark);}

/* ---------- Bento 特性网格（大小不一） ---------- */
.bento{display:grid;grid-template-columns:repeat(4,1fr);grid-auto-rows:170px;gap:18px;}
.bento .card{
  background:#fff;border-radius:var(--radius);padding:26px;
  box-shadow:0 6px 22px rgba(249,115,22,.09);position:relative;overflow:hidden;
  display:flex;flex-direction:column;justify-content:flex-end;transition:transform .25s;
}
.bento .card:hover{transform:translateY(-4px);}
.bento .card.big{grid-column:span 2;grid-row:span 2;justify-content:flex-start;}
.bento .card .ic{
  width:48px;height:48px;border-radius:14px;background:var(--primary-tint);
  display:flex;align-items:center;justify-content:center;margin-bottom:14px;flex-shrink:0;
}
.bento .card.big .ic{width:60px;height:60px;}
.bento .card h3{font-size:17px;font-weight:800;margin-bottom:6px;}
.bento .card.big h3{font-size:22px;}
.bento .card p{font-size:13.5px;color:var(--ink-soft);}

/* ---------- 内联统计横幅 ---------- */
.stat-banner{background:linear-gradient(135deg,var(--primary),var(--accent));border-radius:var(--radius);padding:44px 40px;}
.stat-banner .grid{display:grid;grid-template-columns:repeat(4,1fr);text-align:center;}
.stat-banner .grid div{color:#fff;}
.stat-banner .n{font-size:32px;font-weight:900;}
.stat-banner .l{font-size:13px;opacity:.9;margin-top:6px;}

/* ---------- 深度介绍：手风琴 ---------- */
.acc-list{max-width:880px;margin:0 auto;}
.acc-item{background:#fff;border-radius:16px;margin-bottom:14px;box-shadow:0 4px 16px rgba(249,115,22,.08);overflow:hidden;}
.acc-item summary{
  list-style:none;cursor:pointer;padding:24px 28px;display:flex;align-items:center;gap:16px;font-weight:800;font-size:17px;
}
.acc-item summary::-webkit-details-marker{display:none;}
.acc-num{width:38px;height:38px;border-radius:50%;background:var(--primary-tint);color:var(--primary-dark);display:flex;align-items:center;justify-content:center;font-size:14px;flex-shrink:0;}
.acc-item .arrow{margin-left:auto;transition:transform .25s;color:var(--primary);flex-shrink:0;}
.acc-item[open] .arrow{transform:rotate(180deg);}
.acc-body{padding:0 28px 26px 82px;color:var(--ink-soft);font-size:14.5px;}
.acc-body p{margin-bottom:10px;}

/* ---------- 平台卡片：渐变图标 ---------- */
.platform-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;}
.platform-card{
  background:#fff;border-radius:var(--radius);padding:30px 24px;text-align:center;
  box-shadow:0 6px 20px rgba(249,115,22,.09);transition:transform .25s;
}
.platform-card:hover{transform:translateY(-5px);}
.platform-icon{
  width:60px;height:60px;border-radius:16px;margin:0 auto 16px;
  background:linear-gradient(135deg,var(--primary-tint),#ffe4cc);
  display:flex;align-items:center;justify-content:center;
}
.platform-card h4{font-size:16.5px;font-weight:800;margin-bottom:6px;}
.platform-card p{font-size:12.5px;color:var(--ink-soft);margin-bottom:16px;min-height:34px;}
.btn-download{
  display:inline-flex;align-items:center;gap:6px;
  background:var(--ink);color:#fff;padding:10px 22px;border-radius:30px;
  font-size:13.5px;font-weight:800;border:none;cursor:pointer;transition:background .25s;
}
.btn-download:hover{background:var(--primary-dark);}
.platform-req{font-size:11px;color:#b08b6f;margin-top:12px;}

/* ---------- 横向滑动评价 ---------- */
.review-scroll{display:flex;gap:20px;overflow-x:auto;padding-bottom:14px;scroll-snap-type:x mandatory;}
.review-scroll::-webkit-scrollbar{height:6px;}
.review-scroll::-webkit-scrollbar-thumb{background:var(--line);border-radius:6px;}
.review-card{
  scroll-snap-align:start;flex:0 0 300px;background:#fff;border-radius:var(--radius);
  padding:26px;box-shadow:0 6px 20px rgba(249,115,22,.09);
}
.review-stars{color:var(--accent2);letter-spacing:2px;margin-bottom:12px;}
.review-card p{font-size:13.5px;color:var(--ink-soft);margin-bottom:16px;min-height:96px;}
.reviewer{display:flex;align-items:center;gap:10px;}
.reviewer-avatar{width:36px;height:36px;border-radius:50%;background:linear-gradient(135deg,var(--primary),var(--accent));color:#fff;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:13px;}
.reviewer-name{font-size:13.5px;font-weight:800;}
.reviewer-role{font-size:11.5px;color:#b08b6f;}

/* ---------- 对比：分栏卡片 ---------- */
.vs-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;}
.vs-card{border-radius:var(--radius);padding:32px;background:#fff;box-shadow:0 6px 20px rgba(249,115,22,.09);}
.vs-card.win{background:linear-gradient(160deg,var(--primary),var(--accent));color:#fff;}
.vs-card h3{font-size:19px;font-weight:900;margin-bottom:18px;}
.vs-card ul{list-style:none;}
.vs-card li{padding:10px 0;border-top:1px solid rgba(0,0,0,.06);font-size:14px;display:flex;gap:8px;}
.vs-card.win li{border-top-color:rgba(255,255,255,.2);}
.vs-card li:first-child{border-top:none;}

/* ---------- FAQ：复选框手风琴 ---------- */
.faq-cb{max-width:820px;margin:0 auto;}
.faq-cb-item{background:#fff;border-radius:16px;margin-bottom:12px;box-shadow:0 4px 14px rgba(249,115,22,.08);overflow:hidden;}
.faq-cb-item input{display:none;}
.faq-cb-item label{
  display:flex;justify-content:space-between;align-items:center;padding:20px 24px;
  cursor:pointer;font-weight:800;font-size:15px;
}
.faq-cb-item .ico{transition:transform .25s;color:var(--primary);flex-shrink:0;}
.faq-cb-item input:checked ~ label .ico{transform:rotate(180deg);}
.faq-cb-content{max-height:0;overflow:hidden;transition:max-height .3s ease;}
.faq-cb-item input:checked ~ .faq-cb-content{max-height:300px;}
.faq-cb-content p{padding:0 24px 20px;color:var(--ink-soft);font-size:14px;}

/* ---------- 下载页 ---------- */
.download-hero{padding:96px 0 60px;text-align:center;background:linear-gradient(160deg,#fff2e2,#ffdcb8);position:relative;overflow:hidden;}
.download-panel{max-width:640px;margin:32px auto 0;background:#fff;border-radius:var(--radius);padding:32px;text-align:left;box-shadow:0 10px 30px rgba(249,115,22,.14);}
.download-panel-top{display:flex;align-items:center;gap:18px;margin-bottom:22px;}
.download-panel-top h3{font-size:19px;font-weight:800;margin-bottom:4px;}
.download-panel-top p{font-size:13.5px;color:var(--ink-soft);}
.btn-block{width:100%;justify-content:center;}
.secure-line{display:flex;align-items:center;gap:6px;justify-content:center;margin-top:16px;font-size:12.5px;color:var(--ink-soft);}

.steps-zigzag{max-width:900px;margin:0 auto;display:flex;flex-direction:column;gap:22px;}
.zz-row{display:flex;gap:20px;align-items:flex-start;background:#fff;border-radius:16px;padding:24px;box-shadow:0 4px 16px rgba(249,115,22,.08);}
.zz-num{width:40px;height:40px;border-radius:50%;background:linear-gradient(135deg,var(--primary),var(--accent));color:#fff;display:flex;align-items:center;justify-content:center;font-weight:800;flex-shrink:0;}
.zz-row h3{font-size:16.5px;font-weight:800;margin-bottom:6px;}
.zz-row p{color:var(--ink-soft);font-size:14px;}

.req-table{width:100%;border-collapse:separate;border-spacing:0 10px;}
.req-table td{background:#fff;padding:16px 22px;font-size:14px;}
.req-table tr td:first-child{border-radius:14px 0 0 14px;font-weight:800;color:var(--primary-dark);}
.req-table tr td:last-child{border-radius:0 14px 14px 0;}

.changelog-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;}
.log-card{background:#fff;border-radius:16px;padding:24px;box-shadow:0 4px 16px rgba(249,115,22,.08);}
.log-ver{font-weight:900;color:var(--primary-dark);font-size:16px;}
.log-date{font-size:12px;color:#b08b6f;margin:4px 0 10px;}
.log-card p{font-size:13.5px;color:var(--ink-soft);}

.cta-band{background:linear-gradient(135deg,var(--primary),var(--accent));color:#fff;text-align:center;border-radius:24px;padding:60px 40px;}
.cta-band h2{font-size:28px;font-weight:900;margin-bottom:14px;}
.cta-band p{opacity:.92;margin-bottom:26px;}
.cta-band .btn-primary{background:#fff;color:var(--primary-dark);box-shadow:none;}
.cta-band .btn-primary:hover{background:#fff8f0;}

article.copy h2{font-size:24px;font-weight:900;margin:44px 0 14px;color:var(--ink);}
article.copy h2:first-child{margin-top:0;}
article.copy p{color:var(--ink-soft);margin-bottom:14px;}
article.copy ul{margin:0 0 14px 20px;color:var(--ink-soft);}
article.copy li{margin-bottom:6px;}

footer{background:var(--ink);color:#e8d3c2;padding:38px 0;text-align:center;}
footer p{font-size:12.5px;margin-bottom:6px;}

@keyframes spin{from{transform:rotate(0deg);}to{transform:rotate(360deg);}}

@media (max-width:900px){
  .hero h1{font-size:34px;}
  .bento{grid-template-columns:repeat(2,1fr);grid-auto-rows:auto;}
  .bento .card.big{grid-column:span 2;grid-row:span 1;}
  .platform-grid{grid-template-columns:repeat(2,1fr);}
  .stat-banner .grid{grid-template-columns:repeat(2,1fr);gap:20px;}
  .vs-grid{grid-template-columns:1fr;}
  .changelog-grid{grid-template-columns:1fr;}
  .nav-links a{padding:7px 12px;font-size:13px;}
  section{padding:58px 0;}
}