*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --wps-red:#e2231a;
  --wps-red-dark:#c41e17;
  --wps-red-light:#ff4d45;
  --text-primary:#1a1a1a;
  --text-secondary:#666;
  --text-light:#999;
  --bg-white:#fff;
  --bg-gray:#f5f6f8;
  --bg-dark:#1d1d1f;
  --border:#e8e8e8;
  --shadow:0 4px 24px rgba(0,0,0,.08);
  --radius:12px;
  --max-width:1200px;
  --header-h:64px;
}
html{scroll-behavior:smooth;font-size:16px}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;color:var(--text-primary);line-height:1.6;background:var(--bg-white)}
a{color:inherit;text-decoration:none;transition:color .2s}
img{max-width:100%;display:block}
ul{list-style:none}
.container{max-width:var(--max-width);margin:0 auto;padding:0 24px}

/* Header */
.site-header{position:fixed;top:0;left:0;right:0;height:var(--header-h);background:rgba(255,255,255,.96);backdrop-filter:blur(12px);border-bottom:1px solid var(--border);z-index:1000}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:100%}
.logo{display:flex;align-items:center;gap:10px;font-size:20px;font-weight:700;color:var(--wps-red)}
.logo-icon{width:36px;height:36px;background:var(--wps-red);border-radius:8px;display:flex;align-items:center;justify-content:center;color:#fff;font-weight:800;font-size:14px}
.nav-main{display:flex;align-items:center;gap:32px}
.nav-main a{font-size:15px;color:var(--text-secondary);font-weight:500}
.nav-main a:hover,.nav-main a.active{color:var(--wps-red)}
.btn-download{display:inline-flex;align-items:center;justify-content:center;padding:10px 28px;background:var(--wps-red);color:#fff;border-radius:24px;font-size:15px;font-weight:600;border:none;cursor:pointer;transition:background .2s,transform .15s}
.btn-download:hover{background:var(--wps-red-dark);transform:translateY(-1px)}
.btn-download-lg{padding:14px 40px;font-size:17px;border-radius:28px}
.btn-outline{display:inline-flex;align-items:center;padding:10px 28px;border:2px solid var(--wps-red);color:var(--wps-red);border-radius:24px;font-size:15px;font-weight:600;background:transparent;cursor:pointer;transition:all .2s}
.btn-outline:hover{background:var(--wps-red);color:#fff}

/* Hero */
.hero{padding:calc(var(--header-h) + 80px) 0 100px;background:linear-gradient(180deg,#fff5f4 0%,#fff 60%);text-align:center;position:relative;overflow:hidden}
.hero::before{content:"";position:absolute;top:-120px;right:-80px;width:400px;height:400px;background:radial-gradient(circle,rgba(226,35,26,.08) 0%,transparent 70%);border-radius:50%}
.hero h1{font-size:clamp(32px,5vw,52px);font-weight:800;line-height:1.25;margin-bottom:20px;letter-spacing:-.02em}
.hero h1 span{color:var(--wps-red)}
.hero-desc{font-size:18px;color:var(--text-secondary);max-width:640px;margin:0 auto 36px;line-height:1.8}
.hero-actions{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}

/* Sections */
.section{padding:80px 0}
.section-gray{background:var(--bg-gray)}
.section-title{text-align:center;font-size:clamp(26px,4vw,36px);font-weight:700;margin-bottom:16px}
.section-subtitle{text-align:center;color:var(--text-secondary);font-size:17px;margin-bottom:48px;max-width:600px;margin-left:auto;margin-right:auto}

/* Feature cards */
.feature-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:28px}
.feature-card{background:#fff;border-radius:var(--radius);padding:36px 28px;box-shadow:var(--shadow);transition:transform .25s,box-shadow .25s;border:1px solid transparent}
.feature-card:hover{transform:translateY(-4px);box-shadow:0 12px 40px rgba(226,35,26,.12);border-color:rgba(226,35,26,.1)}
.feature-icon{width:56px;height:56px;background:linear-gradient(135deg,var(--wps-red),var(--wps-red-light));border-radius:14px;display:flex;align-items:center;justify-content:center;font-size:26px;margin-bottom:20px}
.feature-card h3{font-size:20px;font-weight:700;margin-bottom:12px}
.feature-card p{color:var(--text-secondary);font-size:15px;line-height:1.75}

/* AI Section */
.ai-section{background:linear-gradient(135deg,#1d1d1f 0%,#2d2d30 100%);color:#fff;padding:100px 0}
.ai-section .section-title{color:#fff}
.ai-section .section-subtitle{color:rgba(255,255,255,.7)}
.ai-badge{display:inline-block;background:linear-gradient(90deg,var(--wps-red),#ff6b35);padding:4px 14px;border-radius:20px;font-size:13px;font-weight:600;margin-bottom:20px}
.ai-features{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:20px;margin-top:40px}
.ai-item{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.1);border-radius:var(--radius);padding:24px;text-align:center}
.ai-item h4{font-size:16px;margin-bottom:8px}
.ai-item p{font-size:14px;color:rgba(255,255,255,.6)}

/* Platform */
.platform-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:20px;max-width:800px;margin:0 auto}
.platform-item{text-align:center;padding:28px 16px;background:#fff;border-radius:var(--radius);box-shadow:var(--shadow)}
.platform-item .icon{font-size:36px;margin-bottom:10px}
.platform-item span{font-size:14px;color:var(--text-secondary);font-weight:500}

/* Articles */
.article-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:28px}
.article-card{background:#fff;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:transform .25s}
.article-card:hover{transform:translateY(-4px)}
.article-card-img{height:180px;background:linear-gradient(135deg,#ffe8e6,#fff5f4);display:flex;align-items:center;justify-content:center;font-size:48px}
.article-card-body{padding:24px}
.article-card-body h3{font-size:18px;font-weight:700;margin-bottom:10px;line-height:1.4}
.article-card-body h3 a:hover{color:var(--wps-red)}
.article-card-body p{color:var(--text-secondary);font-size:14px;line-height:1.7;margin-bottom:14px}
.article-meta{font-size:13px;color:var(--text-light)}
.daily-update-tag{display:inline-block;background:#fff3f2;color:var(--wps-red);font-size:12px;padding:2px 10px;border-radius:10px;margin-left:8px}

/* Article page */
.article-page{padding:calc(var(--header-h) + 48px) 0 80px}
.article-header{max-width:760px;margin:0 auto 40px;text-align:center}
.article-header h1{font-size:clamp(26px,4vw,36px);font-weight:800;line-height:1.35;margin-bottom:16px}
.article-header .meta{color:var(--text-light);font-size:14px}
.article-content{max-width:760px;margin:0 auto;font-size:16px;line-height:1.9;color:#333}
.article-content h2{font-size:22px;font-weight:700;margin:36px 0 16px;color:var(--text-primary)}
.article-content h3{font-size:18px;font-weight:600;margin:28px 0 12px}
.article-content p{margin-bottom:18px}
.article-content ul,.article-content ol{margin:0 0 18px 24px}
.article-content li{margin-bottom:8px}
.article-content blockquote{border-left:4px solid var(--wps-red);padding:12px 20px;background:var(--bg-gray);margin:24px 0;border-radius:0 8px 8px 0;color:var(--text-secondary)}
.daily-tip-box{background:linear-gradient(135deg,#fff5f4,#fff);border:1px solid rgba(226,35,26,.15);border-radius:var(--radius);padding:24px 28px;margin:32px 0}
.daily-tip-box h3{color:var(--wps-red);font-size:16px;margin-bottom:10px}
.daily-tip-box p{margin:0;font-size:15px}

/* Download page */
.download-hero{padding:calc(var(--header-h) + 60px) 0 60px;text-align:center;background:linear-gradient(180deg,#fff5f4,#fff)}
.download-hero h1{font-size:clamp(28px,4vw,40px);font-weight:800;margin-bottom:16px}
.download-cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:24px;max-width:900px;margin:48px auto 0}
.download-card{background:#fff;border-radius:var(--radius);padding:40px 28px;text-align:center;box-shadow:var(--shadow);border:2px solid transparent;transition:all .25s}
.download-card:hover{border-color:var(--wps-red);transform:translateY(-3px)}
.download-card .icon{font-size:48px;margin-bottom:16px}
.download-card h3{font-size:18px;margin-bottom:8px}
.download-card p{font-size:14px;color:var(--text-secondary);margin-bottom:20px}
.download-steps{max-width:700px;margin:60px auto 0}
.download-steps h2{text-align:center;font-size:24px;margin-bottom:32px}
.step-item{display:flex;gap:20px;margin-bottom:24px;align-items:flex-start}
.step-num{width:36px;height:36px;background:var(--wps-red);color:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:700;flex-shrink:0}
.step-content h4{font-size:16px;margin-bottom:6px}
.step-content p{font-size:14px;color:var(--text-secondary)}

/* Footer */
.site-footer{background:var(--bg-dark);color:rgba(255,255,255,.7);padding:60px 0 30px}
.footer-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:40px;margin-bottom:40px}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:16px;font-weight:600}
.footer-col a{display:block;font-size:14px;color:rgba(255,255,255,.6);margin-bottom:10px}
.footer-col a:hover{color:var(--wps-red-light)}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding-top:24px;text-align:center;font-size:13px;color:rgba(255,255,255,.4)}

/* CTA */
.cta-section{text-align:center;padding:80px 0;background:linear-gradient(135deg,var(--wps-red),#ff4d45);color:#fff}
.cta-section h2{font-size:clamp(24px,3.5vw,32px);margin-bottom:16px}
.cta-section p{font-size:17px;opacity:.9;margin-bottom:28px}
.cta-section .btn-download{background:#fff;color:var(--wps-red)}
.cta-section .btn-download:hover{background:#f5f5f5}

/* Breadcrumb */
.breadcrumb{padding:calc(var(--header-h) + 16px) 0 0;font-size:14px;color:var(--text-light)}
.breadcrumb a{color:var(--text-secondary)}
.breadcrumb a:hover{color:var(--wps-red)}
.breadcrumb span{margin:0 8px}

@media(max-width:768px){
  .nav-main{display:none}
  .hero{padding-top:calc(var(--header-h) + 48px)}
  .section{padding:56px 0}
}