/* ============================================
   WPS Office Site 1 - Classic Corporate Red
   ============================================ */

/* Reset & Base */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-font-smoothing:antialiased}
body{font-family:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;color:#111827;line-height:1.6;background:#fff}
img{max-width:100%;display:block}
a{text-decoration:none;color:inherit}
ul,ol{list-style:none}
button{font-family:inherit;cursor:pointer;border:none;background:none}

/* Container */
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.text-center{text-align:center}

/* Spin Animation (required for download loading) */
@keyframes spin{from{transform:rotate(0deg)}to{transform:rotate(360deg)}}

/* ============================================
   HEADER & NAVIGATION
   ============================================ */
.site-header{position:sticky;top:0;z-index:100;background:rgba(255,255,255,0.95);backdrop-filter:blur(10px);border-bottom:1px solid #f0f0f0}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:64px;max-width:1200px;margin:0 auto;padding:0 24px}
.logo{display:flex;align-items:center;gap:10px;font-size:20px;font-weight:700;color:#E60012;letter-spacing:-0.5px}
.logo-text{color:#111827}
.main-nav{display:flex;gap:8px}
.nav-link{padding:8px 18px;border-radius:9999px;font-size:15px;font-weight:500;color:#6B7280;transition:all 0.2s ease}
.nav-link:hover{color:#E60012;background:#FFF0F1}
.nav-link.active{color:#fff;background:#E60012}

/* ============================================
   HERO SECTION
   ============================================ */
.hero{position:relative;overflow:hidden;padding:100px 0 80px;background:#FFF5F5}
.hero-bg{position:absolute;inset:0;z-index:0;pointer-events:none}
.hero-blob{position:absolute;border-radius:50%;filter:blur(80px);opacity:0.35}
.hero-blob.blob-1{width:500px;height:500px;background:#FF6B6B;top:-100px;right:-100px;animation:blobFloat 10s ease-in-out infinite alternate}
.hero-blob.blob-2{width:400px;height:400px;background:#FFA0A0;bottom:-80px;left:-80px;animation:blobFloat 12s ease-in-out infinite alternate-reverse}
.hero-blob.blob-3{width:300px;height:300px;background:#FFD4D4;top:50%;left:50%;animation:blobFloat 8s ease-in-out infinite alternate}
@keyframes blobFloat{0%{transform:translate(0,0)}100%{transform:translate(30px,-30px)}}
.hero-content{position:relative;z-index:1;display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center;max-width:1200px;margin:0 auto;padding:0 24px}
.hero-title{font-size:52px;font-weight:800;line-height:1.15;letter-spacing:-1.5px;color:#111827}
.hero-accent{color:#E60012}
.hero-subtitle{font-size:18px;color:#6B7280;margin-top:20px;line-height:1.7;max-width:520px}
.hero-buttons{display:flex;gap:14px;margin-top:32px;flex-wrap:wrap}
.hero-platforms{display:flex;align-items:center;gap:10px;margin-top:28px;flex-wrap:wrap}
.platform-label{font-size:14px;color:#9CA3AF}
.platform-tag{display:inline-flex;align-items:center;gap:6px;padding:6px 14px;background:#fff;border:1px solid #E5E7EB;border-radius:9999px;font-size:13px;color:#6B7280}
.hero-visual{position:relative;height:400px}
.hero-floating-card{position:absolute;display:flex;flex-direction:column;align-items:center;gap:6px;padding:16px 14px;background:#fff;border-radius:16px;box-shadow:0 8px 30px rgba(230,0,18,0.12);font-size:12px;font-weight:600;color:#6B7280;animation:floatCard 6s ease-in-out infinite}
.hero-floating-card.card-doc{top:20%;left:10%;animation-delay:0s}
.hero-floating-card.card-xls{top:10%;right:20%;animation-delay:-1.5s}
.hero-floating-card.card-ppt{bottom:25%;left:25%;animation-delay:-3s}
.hero-floating-card.card-pdf{bottom:15%;right:10%;animation-delay:-4.5s}
@keyframes floatCard{0%,100%{transform:translateY(0)}50%{transform:translateY(-12px)}}

/* Hero Download variant */
.hero-download{padding:80px 0 60px}
.hero-download .hero-content{grid-template-columns:1fr;text-align:center}
.hero-download .hero-subtitle{max-width:640px;margin:20px auto 0}
.hero-meta{display:flex;justify-content:center;gap:24px;margin:24px 0;font-size:14px;color:#9CA3AF;flex-wrap:wrap}
.meta-item{padding:6px 16px;background:#fff;border-radius:9999px;border:1px solid #E5E7EB}
.hero-hint{margin-top:16px;font-size:14px;color:#9CA3AF}

/* ============================================
   BUTTONS
   ============================================ */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 28px;border-radius:9999px;font-size:15px;font-weight:600;transition:all 0.2s ease;white-space:nowrap}
.btn-primary{background:#E60012;color:#fff;box-shadow:0 4px 16px rgba(230,0,18,0.25)}
.btn-primary:hover{background:#C4000F;transform:translateY(-2px);box-shadow:0 6px 20px rgba(230,0,18,0.35)}
.btn-outline{background:transparent;color:#E60012;border:2px solid #E60012}
.btn-outline:hover{background:#E60012;color:#fff}
.btn-light{background:#fff;color:#E60012;box-shadow:0 4px 16px rgba(0,0,0,0.1)}
.btn-light:hover{background:#f8f8f8;transform:translateY(-2px)}
.btn-lg{padding:14px 36px;font-size:17px}
.btn-xl{padding:18px 48px;font-size:18px}
.btn-block{width:100%}

/* ============================================
   SECTIONS
   ============================================ */
.section{padding:80px 0}
.section-white{background:#fff}
.section-gray{background:#F6F7F9}
.section-red-gradient{background:linear-gradient(135deg,#E60012,#FF6B6B);color:#fff}
.section-header{margin-bottom:56px}
.section-title{font-size:36px;font-weight:700;line-height:1.2;color:#111827;letter-spacing:-0.5px}
.section-subtitle{font-size:17px;color:#6B7280;margin-top:14px;max-width:640px;line-height:1.7}
.section-header.text-center .section-subtitle{margin-left:auto;margin-right:auto}

/* ============================================
   FEATURES GRID
   ============================================ */
.features-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.feature-card{padding:32px;border-radius:16px;background:#fff;border:1px solid #E5E7EB;transition:all 0.3s ease}
.feature-card:hover{transform:translateY(-4px);box-shadow:0 12px 40px rgba(0,0,0,0.08)}
.feature-icon{margin-bottom:20px}
.feature-title{font-size:20px;font-weight:600;color:#111827;margin-bottom:12px}
.feature-desc{font-size:15px;color:#6B7280;line-height:1.7}

/* ============================================
   PLATFORM CARDS
   ============================================ */
.platform-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.platform-card{padding:36px;border-radius:16px;background:#fff;border:1px solid #E5E7EB;text-align:center;transition:all 0.3s ease}
.platform-card:hover{transform:translateY(-4px);box-shadow:0 12px 40px rgba(0,0,0,0.08)}
.platform-icon{margin-bottom:20px}
.platform-title{font-size:22px;font-weight:600;color:#111827;margin-bottom:14px}
.platform-desc{font-size:15px;color:#6B7280;line-height:1.7;margin-bottom:24px}
.platform-version{font-size:13px;color:#9CA3AF;margin-top:14px}

/* Platform cards for download page */
.platform-grid-download{grid-template-columns:repeat(2,1fr);gap:28px}
.platform-card-download{border-radius:20px;overflow:hidden;background:#fff;border:1px solid #E5E7EB;transition:all 0.3s ease}
.platform-card-download:hover{box-shadow:0 16px 48px rgba(0,0,0,0.1)}
.platform-card-header{padding:36px;text-align:center;color:#fff}
.platform-card-header h3{margin-top:16px;font-size:22px;font-weight:600}
.platform-card-body{padding:32px}
.platform-info-list{list-style:none;margin-bottom:24px}
.platform-info-list li{padding:8px 0;font-size:14px;color:#6B7280;border-bottom:1px solid #F0F0F0}
.platform-info-list li:last-child{border-bottom:none}
.platform-info-list li strong{color:#111827}
.install-steps{margin-bottom:24px}
.install-steps h4{font-size:15px;font-weight:600;color:#111827;margin-bottom:12px}
.install-steps ol{padding-left:20px;list-style:decimal}
.install-steps li{padding:4px 0;font-size:14px;color:#6B7280}

/* ============================================
   DETAIL BLOCKS
   ============================================ */
.detail-block{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center;margin-bottom:80px}
.detail-block:last-child{margin-bottom:0}
.detail-reverse{direction:rtl}
.detail-reverse > *{direction:ltr}
.detail-text h3{font-size:28px;font-weight:700;color:#111827;margin-bottom:20px;line-height:1.3}
.detail-text p{font-size:16px;color:#6B7280;line-height:1.8;margin-bottom:16px}
.detail-visual{display:flex;justify-content:center;align-items:center}
.detail-card{width:320px;height:240px;background:#fff;border-radius:16px;box-shadow:0 16px 48px rgba(0,0,0,0.1);overflow:hidden}
.detail-card-inner{width:100%;height:100%;display:flex;flex-direction:column}
.detail-card-header{height:60px;width:100%}
.detail-card-body{flex:1;padding:20px;display:flex;flex-direction:column;gap:12px}
.detail-line{height:8px;background:#E5E7EB;border-radius:4px}
.detail-line.w-3-4{width:75%}
.detail-line.w-1-2{width:50%}
.detail-line.w-5-6{width:83%}
.detail-line.w-2-3{width:66%}
.detail-line.w-4-5{width:80%}
.detail-line.w-3-5{width:60%}
.detail-line.w-full{width:100%}
.detail-avatars{display:flex;gap:-8px;margin-bottom:8px}
.detail-avatar{width:36px;height:36px;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;color:#fff;font-size:14px;font-weight:600;border:3px solid #fff;margin-left:-8px}
.detail-avatar:first-child{margin-left:0}

/* ============================================
   STATS
   ============================================ */
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:40px;text-align:center}
.stat-item{padding:24px}
.stat-number{font-size:48px;font-weight:800;color:#fff;line-height:1.1;text-shadow:0 2px 8px rgba(0,0,0,0.15)}
.stat-label{font-size:16px;color:rgba(255,255,255,0.85);margin-top:10px}

/* ============================================
   COMPARISON TABLE
   ============================================ */
.compare-table-wrapper{overflow-x:auto;border-radius:16px;background:#fff;box-shadow:0 4px 20px rgba(0,0,0,0.06)}
.compare-table{width:100%;border-collapse:collapse;font-size:15px}
.compare-table th{padding:16px 24px;text-align:left;font-weight:600;color:#111827;background:#F6F7F9;border-bottom:2px solid #E5E7EB;white-space:nowrap}
.compare-table td{padding:14px 24px;border-bottom:1px solid #F0F0F0;color:#374151;vertical-align:middle}
.compare-table tbody tr:hover{background:#FAFAFA}
.col-feature{min-width:200px;font-weight:500}
.col-wps{min-width:220px}
.col-ms{min-width:220px}
.col-other{min-width:180px}
.check-yes,.check-no{display:inline-flex;align-items:center;justify-content:center;width:24px;height:24px;border-radius:50%;margin-right:8px;vertical-align:middle}
.check-yes{background:#DCFCE7;color:#16A34A}
.check-no{background:#FEE2E2;color:#DC2626}
.check-partial{display:inline-flex;align-items:center;justify-content:center;width:24px;height:24px;border-radius:50%;margin-right:8px;background:#FEF3C7;color:#D97706;font-size:12px;font-weight:700;vertical-align:middle}

/* ============================================
   TESTIMONIALS
   ============================================ */
.testimonials-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.testimonial-card{padding:28px;border-radius:16px;background:#fff;border:1px solid #E5E7EB;transition:all 0.3s ease}
.testimonial-card:hover{box-shadow:0 8px 32px rgba(0,0,0,0.08)}
.testimonial-stars{display:flex;gap:4px;margin-bottom:16px}
.testimonial-text{font-size:15px;color:#374151;line-height:1.7;margin-bottom:20px}
.testimonial-author{display:flex;align-items:center;gap:12px}
.testimonial-avatar{width:40px;height:40px;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;color:#fff;font-size:16px;font-weight:600}
.testimonial-author strong{display:block;font-size:14px;color:#111827}
.testimonial-author span{font-size:13px;color:#9CA3AF}

/* ============================================
   FAQ
   ============================================ */
.faq-list{max-width:800px;margin:0 auto;display:flex;flex-direction:column;gap:12px}
.faq-item{border-radius:12px;background:#fff;border:1px solid #E5E7EB;overflow:hidden}
.faq-question{padding:20px 24px;font-size:16px;font-weight:600;color:#111827;cursor:pointer;display:flex;justify-content:space-between;align-items:center;list-style:none}
.faq-question::after{content:'+';font-size:20px;color:#E60012;font-weight:400;transition:transform 0.2s ease}
.faq-item[open] .faq-question::after{transform:rotate(45deg)}
.faq-answer{padding:0 24px 20px}
.faq-answer p{font-size:15px;color:#6B7280;line-height:1.8}

/* ============================================
   REQUIREMENTS
   ============================================ */
.requirements-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:28px}
.requirement-card{padding:32px;border-radius:16px;background:#fff;border:1px solid #E5E7EB}
.requirement-title{display:flex;align-items:center;gap:12px;font-size:20px;font-weight:600;color:#111827;margin-bottom:20px}
.req-table{width:100%;font-size:14px}
.req-table td{padding:10px 0;border-bottom:1px solid #F0F0F0;color:#6B7280}
.req-table td:first-child{width:40%;font-weight:500;color:#374151}
.req-table tr:last-child td{border-bottom:none}

/* ============================================
   CHANGELOG
   ============================================ */
.changelog-list{max-width:800px;margin:0 auto;display:flex;flex-direction:column;gap:24px}
.changelog-item{padding:28px 32px;border-radius:16px;background:#fff;border:1px solid #E5E7EB}
.changelog-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px;flex-wrap:wrap;gap:8px}
.changelog-version{font-size:22px;font-weight:700;color:#111827}
.changelog-date{font-size:14px;color:#9CA3AF;padding:4px 12px;background:#F6F7F9;border-radius:9999px}
.changelog-changes{list-style:none;display:flex;flex-direction:column;gap:10px}
.changelog-changes li{display:flex;align-items:flex-start;gap:10px;font-size:15px;color:#374151;line-height:1.6}
.tag{display:inline-block;padding:3px 10px;border-radius:6px;font-size:11px;font-weight:600;margin-right:4px;white-space:nowrap}
.tag-new{background:#DCFCE7;color:#16A34A}
.tag-improve{background:#DBEAFE;color:#2563EB}
.tag-fix{background:#FEE2E2;color:#DC2626}

/* ============================================
   SECURITY BLOCK
   ============================================ */
.security-block{text-align:center;max-width:700px;margin:0 auto}
.security-icon{margin-bottom:24px}
.security-features{display:flex;justify-content:center;gap:40px;margin-top:40px;flex-wrap:wrap}
.security-feature{display:flex;flex-direction:column;align-items:center;gap:10px;font-size:15px;font-weight:500;color:#374151}

/* ============================================
   CONTENT ARTICLE
   ============================================ */
.content-article{max-width:800px;margin:0 auto}
.content-article h2{font-size:32px;font-weight:700;color:#111827;margin-bottom:24px;line-height:1.3}
.content-article h3{font-size:24px;font-weight:600;color:#111827;margin:40px 0 16px;line-height:1.4}
.content-article p{font-size:17px;color:#374151;line-height:1.9;margin-bottom:20px}

/* ============================================
   TIPS GRID
   ============================================ */
.tips-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.tip-card{padding:28px;border-radius:16px;background:#fff;border:1px solid #E5E7EB;transition:all 0.3s ease}
.tip-card:hover{transform:translateY(-4px);box-shadow:0 12px 40px rgba(0,0,0,0.08)}
.tip-number{font-size:36px;font-weight:800;color:#E60012;opacity:0.3;line-height:1;margin-bottom:16px}
.tip-card h3{font-size:18px;font-weight:600;color:#111827;margin-bottom:12px}
.tip-card p{font-size:14px;color:#6B7280;line-height:1.7}

/* ============================================
   FOOTER
   ============================================ */
.site-footer{padding:32px 0;background:#111827;color:#9CA3AF;font-size:14px}
.footer-content{text-align:center}
.footer-verify{display:flex;align-items:center;justify-content:center;gap:10px;margin-bottom:12px;color:#6B7280}
.footer-copyright{color:#6B7280}

/* ============================================
   RESPONSIVE
   ============================================ */
@media(max-width:1024px){
  .hero-content{grid-template-columns:1fr;text-align:center}
  .hero-visual{display:none}
  .hero-subtitle{max-width:600px;margin-left:auto;margin-right:auto}
  .hero-buttons{justify-content:center}
  .hero-platforms{justify-content:center}
  .features-grid{grid-template-columns:repeat(2,1fr)}
  .detail-block{grid-template-columns:1fr;gap:40px}
  .detail-reverse{direction:ltr}
  .platform-grid-download{grid-template-columns:1fr}
  .tips-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:768px){
  .section{padding:56px 0}
  .section-title{font-size:28px}
  .hero-title{font-size:36px}
  .hero{padding:60px 0 40px}
  .features-grid{grid-template-columns:1fr}
  .platform-grid{grid-template-columns:1fr}
  .stats-grid{grid-template-columns:repeat(2,1fr);gap:20px}
  .testimonials-grid{grid-template-columns:1fr}
  .requirements-grid{grid-template-columns:1fr}
  .tips-grid{grid-template-columns:1fr}
  .header-inner{padding:0 16px}
  .nav-link{padding:6px 12px;font-size:14px}
  .hero-meta{gap:10px}
  .compare-table-wrapper{font-size:14px}
  .compare-table th,.compare-table td{padding:10px 14px}
  .security-features{gap:20px}
}