/* WPS Office 下载导航站 — Editorial Corporate 主题 */
:root{
  --teal:#0B6E6E;
  --teal-dark:#074F4F;
  --teal-mist:#E7F1F0;
  --charcoal:#1A1F2C;
  --ink:#2E3542;
  --sand:#F3EDE3;
  --sand-deep:#E7DFCF;
  --line:#D9CFBB;
  --muted:#6B7280;
  --white:#FFFFFF;
  --accent:#B4632F;
  --shadow:0 6px 18px rgba(11,110,110,.08);
  --radius:6px;
  --serif:"Songti SC","Source Han Serif SC","Noto Serif SC","SimSun",Georgia,serif;
  --sans:"PingFang SC","Noto Sans SC","Microsoft YaHei","Hiragino Sans GB",system-ui,sans-serif;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--sans);
  color:var(--ink);
  background:var(--white);
  line-height:1.75;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
}
img,svg{max-width:100%;display:block}
a{color:var(--teal);text-decoration:none}
a:hover{color:var(--teal-dark);text-decoration:underline}

/* ---------- Loading Spinner (required) ---------- */
@keyframes spin { to { transform: rotate(360deg); } }

/* ---------- Layout ---------- */
.container{max-width:1180px;margin:0 auto;padding:0 24px}
.band{padding:76px 0}
.band--sand{background:var(--sand)}
.band--white{background:var(--white)}
.band--teal{background:var(--charcoal);color:#EDE7DA}
.band--mist{background:var(--teal-mist)}
.band--dark{background:var(--charcoal);color:#EDE7DA}

.eyebrow{
  display:inline-block;
  font-family:var(--sans);
  font-size:13px;
  letter-spacing:.28em;
  text-transform:uppercase;
  color:var(--teal);
  padding:6px 14px;
  border:1px solid var(--teal);
  border-radius:2px;
  margin-bottom:22px;
}
.band--teal .eyebrow,.band--dark .eyebrow{
  color:#EAD9B8;border-color:#EAD9B8;
}
.section-title{
  font-family:var(--serif);
  font-size:34px;
  line-height:1.35;
  color:var(--charcoal);
  margin-bottom:14px;
  font-weight:600;
  letter-spacing:.02em;
}
.band--teal .section-title,.band--dark .section-title{color:#F6EFDF}
.section-lead{
  max-width:780px;
  color:var(--muted);
  font-size:16.5px;
  margin-bottom:44px;
}
.band--teal .section-lead,.band--dark .section-lead{color:#CFD3D8}

/* ---------- Navigation ---------- */
.site-nav{
  position:sticky;top:0;z-index:80;
  background:rgba(255,255,255,.94);
  backdrop-filter:saturate(160%) blur(8px);
  border-bottom:1px solid var(--line);
}
.nav-wrap{
  display:flex;align-items:center;justify-content:space-between;
  height:68px;
}
.brand{
  font-family:var(--serif);
  font-size:22px;
  font-weight:700;
  color:var(--charcoal);
  letter-spacing:.04em;
  display:inline-flex;align-items:center;gap:10px;
}
.brand-mark{
  width:32px;height:32px;background:var(--teal);color:#fff;
  display:inline-flex;align-items:center;justify-content:center;
  font-family:var(--serif);font-weight:700;font-size:16px;
  border-radius:2px;
}
.nav-links{
  display:flex;gap:36px;list-style:none;align-items:center;
  font-family:var(--sans);font-size:15.5px;
}
.nav-links a{
  color:var(--charcoal);
  padding:6px 2px;
  position:relative;
  text-decoration:none;
  transition:color .2s ease;
}
.nav-links a:hover{color:var(--teal)}
.nav-links a.active{color:var(--teal)}
.nav-links a.active::after{
  content:"";position:absolute;left:0;right:0;bottom:-4px;
  height:2px;background:var(--teal);
}

/* ---------- Hero ---------- */
.hero{
  background:linear-gradient(180deg,#0B6E6E 0%,#074F4F 100%);
  color:#EFE9DA;
  padding:88px 0 100px;
  position:relative;overflow:hidden;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(600px 300px at 88% 20%, rgba(255,255,255,.08), transparent 60%),
    radial-gradient(400px 260px at 8% 80%, rgba(180,99,47,.15), transparent 60%);
  pointer-events:none;
}
.hero-inner{
  position:relative;z-index:1;
  display:grid;grid-template-columns:1.15fr 1fr;gap:56px;align-items:center;
}
.hero-text .eyebrow{color:#EAD9B8;border-color:#EAD9B8}
.hero h1{
  font-family:var(--serif);
  font-weight:600;
  font-size:52px;line-height:1.18;
  color:#F7EFDD;
  letter-spacing:.02em;
  margin-bottom:22px;
}
.hero h1 em{
  font-style:normal;color:#F2C288;
  border-bottom:2px solid rgba(242,194,136,.5);
  padding-bottom:2px;
}
.hero p.lead{
  font-size:17px;color:#D4D7CE;
  max-width:560px;margin-bottom:34px;
}
.hero-actions{
  display:flex;flex-wrap:wrap;gap:14px;align-items:center;
}
.hero-meta{
  margin-top:34px;display:flex;flex-wrap:wrap;gap:26px;
  color:#B7BEBB;font-size:14px;
}
.hero-meta span{display:inline-flex;align-items:center;gap:8px}
.hero-illu{
  width:100%;aspect-ratio:1/1;max-width:460px;justify-self:end;
}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:10px;
  padding:14px 26px;font-size:15.5px;font-weight:500;
  border:1px solid transparent;border-radius:3px;
  cursor:pointer;transition:all .2s ease;
  font-family:var(--sans);
  line-height:1;
}
.btn:disabled{opacity:.85;cursor:wait}
.btn-primary{
  background:var(--accent);color:#fff;
  border-color:var(--accent);
}
.btn-primary:hover{background:#8f4e23;border-color:#8f4e23}
.btn-outline{
  background:transparent;color:#F7EFDD;
  border-color:#EAD9B8;
}
.btn-outline:hover{background:rgba(234,217,184,.12)}
.btn-teal{background:var(--teal);color:#fff;border-color:var(--teal)}
.btn-teal:hover{background:var(--teal-dark);border-color:var(--teal-dark)}
.btn-ghost{background:transparent;color:var(--teal);border-color:var(--teal)}
.btn-ghost:hover{background:var(--teal);color:#fff}
.btn-block{width:100%;justify-content:center}
.btn-lg{padding:16px 32px;font-size:16.5px}

/* ---------- Grid Cards ---------- */
.grid{display:grid;gap:26px}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}

.card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:30px 28px;
  transition:box-shadow .2s ease,transform .2s ease,border-color .2s ease;
}
.card:hover{box-shadow:var(--shadow);border-color:var(--teal)}
.card .ico{
  width:44px;height:44px;border-radius:3px;
  background:var(--teal-mist);color:var(--teal);
  display:inline-flex;align-items:center;justify-content:center;
  margin-bottom:18px;
}
.card h3{
  font-family:var(--serif);font-size:20px;color:var(--charcoal);
  margin-bottom:10px;font-weight:600;
}
.card p{color:var(--ink);font-size:15px;line-height:1.85}

.card--dark{background:#141826;border-color:#2A2F3E;color:#D9D6CE}
.card--dark h3{color:#F5EEDC}
.card--dark p{color:#B7BCC4}
.card--dark .ico{background:rgba(180,99,47,.16);color:#F2C288}

/* ---------- Platform Cards ---------- */
.platform-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.platform{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:28px 24px;text-align:center;position:relative;
}
.platform .pf-badge{
  position:absolute;top:14px;right:14px;
  font-size:11px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--teal);border:1px solid var(--teal);
  padding:2px 8px;border-radius:2px;
}
.platform .pf-icon{
  width:56px;height:56px;margin:6px auto 14px;
  background:var(--sand);border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;color:var(--teal);
}
.platform h3{font-family:var(--serif);font-size:19px;color:var(--charcoal);margin-bottom:6px}
.platform .pf-meta{color:var(--muted);font-size:13.5px;margin-bottom:16px}
.platform .btn{width:100%;justify-content:center}

/* ---------- Editorial split ---------- */
.split{
  display:grid;grid-template-columns:1.05fr 1fr;gap:56px;align-items:center;
}
.split.reverse{grid-template-columns:1fr 1.05fr}
.split h2{
  font-family:var(--serif);font-size:32px;color:var(--charcoal);
  font-weight:600;margin-bottom:16px;line-height:1.35;
}
.split p{color:var(--ink);font-size:16px;margin-bottom:14px}
.split ul{margin:18px 0 0;padding-left:0;list-style:none}
.split ul li{
  padding:10px 0 10px 28px;position:relative;font-size:15.5px;color:var(--ink);
  border-bottom:1px dashed var(--line);
}
.split ul li:last-child{border-bottom:0}
.split ul li::before{
  content:"";position:absolute;left:0;top:18px;
  width:14px;height:2px;background:var(--teal);
}
.split-figure{
  background:var(--white);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:26px;
  box-shadow:var(--shadow);
}
.split-figure svg{width:100%;height:auto}

/* ---------- Stat strip ---------- */
.stats{
  display:grid;grid-template-columns:repeat(4,1fr);
  gap:0;border-top:1px solid rgba(234,217,184,.35);
  border-bottom:1px solid rgba(234,217,184,.35);
}
.stat{
  padding:34px 20px;text-align:center;
  border-right:1px solid rgba(234,217,184,.35);
}
.stat:last-child{border-right:0}
.stat .num{
  font-family:var(--serif);font-size:40px;font-weight:600;color:#F2C288;
  line-height:1;margin-bottom:8px;
}
.stat .lbl{color:#CFD3D8;font-size:14px;letter-spacing:.05em}

/* ---------- Review / quote ---------- */
.quote-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.quote{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:30px;position:relative;
}
.quote::before{
  content:"“";position:absolute;top:6px;left:16px;
  font-family:var(--serif);font-size:64px;color:var(--sand-deep);line-height:1;
}
.quote p{
  padding-top:24px;color:var(--ink);font-size:15px;line-height:1.9;
  margin-bottom:18px;
}
.quote .who{
  display:flex;align-items:center;gap:12px;border-top:1px solid var(--line);
  padding-top:14px;
}
.quote .who .avatar{
  width:38px;height:38px;border-radius:50%;
  background:var(--teal);color:#fff;display:inline-flex;
  align-items:center;justify-content:center;font-family:var(--serif);
  font-weight:600;
}
.quote .who small{display:block;color:var(--muted);font-size:12.5px;margin-top:2px}
.quote .who strong{color:var(--charcoal);font-size:14.5px;font-weight:600}

/* ---------- Comparison table ---------- */
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius);background:#fff}
table.compare{
  width:100%;border-collapse:collapse;font-size:15px;
}
.compare th,.compare td{
  padding:16px 18px;text-align:left;border-bottom:1px solid var(--line);vertical-align:top;
}
.compare thead th{
  background:var(--sand);color:var(--charcoal);font-family:var(--serif);
  font-weight:600;font-size:15.5px;
}
.compare tbody th{
  font-weight:500;color:var(--charcoal);width:24%;background:#FBF8F1;
}
.compare tbody tr:last-child td,.compare tbody tr:last-child th{border-bottom:0}
.compare .yes{color:var(--teal);font-weight:600}
.compare .no{color:#B4632F}

/* ---------- FAQ numbered ---------- */
.faq{counter-reset:faq;max-width:920px;margin:0 auto}
.faq-item{
  counter-increment:faq;
  padding:26px 30px 26px 74px;position:relative;
  background:#fff;border:1px solid var(--line);
  border-radius:var(--radius);
  margin-bottom:16px;
}
.faq-item::before{
  content:counter(faq,decimal-leading-zero);
  position:absolute;left:24px;top:26px;
  font-family:var(--serif);color:var(--teal);font-weight:600;font-size:22px;
  letter-spacing:.05em;
}
.faq-item h3{
  font-family:var(--serif);font-size:18.5px;color:var(--charcoal);
  font-weight:600;margin-bottom:10px;
}
.faq-item p{color:var(--ink);font-size:15px;line-height:1.9}

/* ---------- Steps ---------- */
.steps{
  display:grid;grid-template-columns:repeat(4,1fr);gap:24px;
}
.step{
  background:#fff;border-top:3px solid var(--teal);
  border:1px solid var(--line);border-top:3px solid var(--teal);
  padding:26px 24px;border-radius:var(--radius);
}
.step .num{
  font-family:var(--serif);font-size:32px;color:var(--teal);
  font-weight:600;line-height:1;margin-bottom:10px;
}
.step h4{
  font-family:var(--serif);font-size:17.5px;color:var(--charcoal);
  margin-bottom:10px;font-weight:600;
}
.step p{color:var(--ink);font-size:14.5px;line-height:1.85}

/* ---------- Requirements list ---------- */
.req-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.req-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:28px 30px;
}
.req-card h3{
  font-family:var(--serif);font-size:19px;color:var(--charcoal);
  margin-bottom:14px;padding-bottom:12px;border-bottom:1px solid var(--line);
}
.req-card dl{display:grid;grid-template-columns:130px 1fr;row-gap:12px;column-gap:14px}
.req-card dt{color:var(--muted);font-size:14px}
.req-card dd{color:var(--ink);font-size:14.5px}

/* ---------- Article (zh-cn) ---------- */
.article{max-width:860px;margin:0 auto}
.article h1{
  font-family:var(--serif);font-weight:600;font-size:38px;
  color:var(--charcoal);line-height:1.3;margin-bottom:18px;
}
.article .article-meta{
  color:var(--muted);font-size:14px;margin-bottom:36px;padding-bottom:18px;
  border-bottom:1px solid var(--line);
}
.article h2{
  font-family:var(--serif);font-size:26px;color:var(--charcoal);font-weight:600;
  margin:44px 0 16px;padding-left:14px;border-left:4px solid var(--teal);
}
.article h3{
  font-family:var(--serif);font-size:20px;color:var(--charcoal);font-weight:600;
  margin:28px 0 12px;
}
.article p{font-size:16px;color:var(--ink);margin-bottom:16px;line-height:1.95}
.article ul,.article ol{margin:8px 0 20px 24px}
.article li{margin-bottom:8px;color:var(--ink)}
.article blockquote{
  margin:22px 0;padding:18px 22px;background:var(--sand);
  border-left:4px solid var(--accent);color:var(--charcoal);
  font-family:var(--serif);font-size:16.5px;
}
.article .cta-inline{
  display:flex;flex-wrap:wrap;gap:16px;align-items:center;
  background:var(--teal-mist);border:1px solid var(--teal);
  padding:22px 26px;border-radius:var(--radius);margin:34px 0;
}
.article .cta-inline p{margin:0;flex:1;min-width:220px;color:var(--charcoal)}

/* ---------- Callout ---------- */
.callout{
  display:flex;gap:20px;background:#fff;border:1px solid var(--line);
  border-left:4px solid var(--teal);padding:22px 26px;border-radius:var(--radius);
  margin-bottom:22px;
}
.callout .ico{
  flex:none;color:var(--teal);width:26px;height:26px;
}
.callout h4{
  font-family:var(--serif);font-size:17px;color:var(--charcoal);margin-bottom:6px;
}
.callout p{color:var(--ink);font-size:14.5px;line-height:1.85}

/* ---------- Footer ---------- */
.site-foot{
  background:var(--charcoal);color:#B7BEBB;padding:58px 0 30px;
  font-family:var(--sans);font-size:14.5px;
}
.foot-grid{
  display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:36px;
  margin-bottom:36px;
}
.foot-brand{
  font-family:var(--serif);font-size:22px;color:#F6EFDF;
  font-weight:600;margin-bottom:14px;
}
.foot p{color:#9AA0A6;line-height:1.85;font-size:14px}
.foot h5{
  font-family:var(--serif);color:#F6EFDF;font-size:15.5px;
  margin-bottom:14px;letter-spacing:.05em;
}
.foot ul{list-style:none}
.foot ul li{margin-bottom:8px}
.foot ul li a{color:#B7BEBB;font-size:14px}
.foot ul li a:hover{color:#F2C288}
.foot-secure{
  display:flex;gap:14px;align-items:flex-start;
  background:rgba(255,255,255,.03);border:1px solid rgba(255,255,255,.08);
  padding:14px 18px;border-radius:var(--radius);margin-bottom:22px;
  color:#CFD3D8;font-size:13.5px;
}
.foot-secure svg{flex:none;color:#F2C288}
.foot-copy{
  border-top:1px solid rgba(255,255,255,.08);padding-top:22px;
  color:#8B939B;font-size:13px;line-height:1.85;
}

/* ---------- Utilities ---------- */
.text-center{text-align:center}
.mt-8{margin-top:8px}.mt-16{margin-top:16px}.mt-24{margin-top:24px}.mt-32{margin-top:32px}
.mb-8{margin-bottom:8px}.mb-16{margin-bottom:16px}.mb-24{margin-bottom:24px}.mb-32{margin-bottom:32px}

/* ---------- Responsive ---------- */
@media (max-width: 980px){
  .hero-inner{grid-template-columns:1fr;gap:36px}
  .hero h1{font-size:38px}
  .hero-illu{max-width:360px;justify-self:start}
  .split,.split.reverse{grid-template-columns:1fr;gap:32px}
  .grid-3,.grid-4,.platform-grid,.steps,.quote-grid,.req-grid{grid-template-columns:1fr 1fr}
  .stats{grid-template-columns:1fr 1fr}
  .stat:nth-child(2){border-right:0}
  .foot-grid{grid-template-columns:1fr 1fr;gap:24px}
  .band{padding:56px 0}
  .section-title{font-size:28px}
  .brand{font-size:19px}
  .nav-links{gap:22px}
}
@media (max-width: 640px){
  .nav-links{gap:16px;font-size:14.5px}
  .brand{font-size:17px}
  .brand-mark{width:28px;height:28px;font-size:14px}
  .hero{padding:60px 0 72px}
  .hero h1{font-size:30px}
  .grid-3,.grid-4,.platform-grid,.steps,.quote-grid,.req-grid,.stats{grid-template-columns:1fr}
  .stat{border-right:0;border-bottom:1px solid rgba(234,217,184,.35)}
  .stat:last-child{border-bottom:0}
  .foot-grid{grid-template-columns:1fr}
  .section-title{font-size:24px}
  .article h1{font-size:28px}
  .article h2{font-size:22px}
  .btn{padding:12px 22px}
  .faq-item{padding:24px 22px 24px 60px}
  .faq-item::before{left:20px;top:24px;font-size:20px}
}