/* ===== 多点壁纸 官网样式 ===== */

:root {
  --primary: #ff6b6b;
  --primary-dark: #ee5a24;
  --bg: #ffffff;
  --bg2: #f8f9fa;
  --bg3: #e9ecef;
  --text: #212529;
  --text2: #6c757d;
  --border: #dee2e6;
  --radius: 16px;
  --shadow: 0 2px 12px rgba(0,0,0,.06);
  --shadow-hover: 0 8px 30px rgba(255,107,107,.15);
}

*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:-apple-system,'PingFang SC','Microsoft YaHei','Helvetica Neue',sans-serif;background:var(--bg);color:var(--text);line-height:1.6;-webkit-font-smoothing:antialiased}

/* ===== Header ===== */
.header{position:fixed;top:0;left:0;right:0;z-index:100;background:rgba(255,255,255,.92);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border-bottom:1px solid var(--border);height:60px;display:flex;align-items:center;justify-content:space-between;padding:0 20px}
.header-inner{max-width:1100px;width:100%;margin:0 auto;display:flex;align-items:center;justify-content:space-between}
.header-logo{display:flex;align-items:center;gap:10px;font-weight:700;font-size:18px;text-decoration:none;color:var(--text);flex-shrink:0}
.header-logo img{width:32px;height:32px;border-radius:8px}
.nav{display:flex;align-items:center;gap:4px}
.nav a{display:inline-block;padding:6px 14px;border-radius:8px;font-size:14px;color:var(--text2);text-decoration:none;transition:.2s}
.nav a:hover{background:var(--bg2);color:var(--text)}
.nav a.active{color:var(--primary);font-weight:600}
.hamburger{display:none;background:none;border:none;color:var(--text);font-size:22px;cursor:pointer;padding:4px;border-radius:8px;width:36px;height:36px}
.hamburger:hover{background:var(--bg2)}

/* ===== Hero ===== */
.hero{text-align:center;padding:140px 20px 80px;background:linear-gradient(180deg,#fff0f0 0%,var(--bg) 100%)}
.hero-badge{display:inline-flex;align-items:center;gap:6px;background:#fff0f0;color:var(--primary);padding:5px 14px;border-radius:20px;font-size:12px;font-weight:600;margin-bottom:24px}
.hero-logo{width:88px;height:88px;border-radius:22px;margin:0 auto 28px;box-shadow:0 4px 24px rgba(255,107,107,.25)}
.hero-logo img{width:100%;height:100%;border-radius:22px}
.hero h1{font-size:clamp(32px,5vw,56px);font-weight:800;line-height:1.15;margin-bottom:16px}
.hero h1 span{background:linear-gradient(135deg,var(--primary),var(--primary-dark));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.hero p{font-size:17px;color:var(--text2);max-width:560px;margin:0 auto 36px;line-height:1.7}
.hero-btns{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}

/* ===== Buttons ===== */
.btn{display:inline-flex;align-items:center;gap:6px;padding:12px 28px;border-radius:50px;font-size:15px;font-weight:600;text-decoration:none;transition:all .25s;border:none;cursor:pointer}
.btn-primary{background:linear-gradient(135deg,var(--primary),var(--primary-dark));color:#fff;box-shadow:0 4px 16px rgba(255,107,107,.3)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 6px 24px rgba(255,107,107,.4)}
.btn-secondary{background:var(--bg);color:var(--text);border:1px solid var(--border);box-shadow:var(--shadow)}
.btn-secondary:hover{border-color:var(--text2);box-shadow:var(--shadow-hover)}
.btn-outline{background:transparent;color:var(--text2);border:1px solid var(--border)}
.btn-outline:hover{border-color:var(--text2)}

/* ===== Sections ===== */
.section{padding:72px 20px;max-width:1100px;margin:0 auto}
.section-label{font-size:11px;font-weight:700;color:var(--primary);letter-spacing:2px;text-transform:uppercase;margin-bottom:8px;text-align:center}
.section-title{font-size:clamp(24px,3.5vw,36px);font-weight:700;margin-bottom:12px;text-align:center}
.section-desc{color:var(--text2);font-size:15px;max-width:540px;margin:0 auto 48px;text-align:center;line-height:1.7}

/* ===== Cards ===== */
.grid-3{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:20px}
.card{background:var(--bg);border-radius:var(--radius);padding:28px;border:1px solid var(--border);transition:.25s;box-shadow:var(--shadow)}
.card:hover{box-shadow:var(--shadow-hover);transform:translateY(-3px)}
.card-icon{width:44px;height:44px;border-radius:12px;background:#fff0f0;display:flex;align-items:center;justify-content:center;font-size:22px;margin-bottom:16px}
.card h3{font-size:17px;font-weight:600;margin-bottom:6px}
.card p{color:var(--text2);font-size:14px;line-height:1.7}

/* ===== Devices ===== */
.grid-4{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:16px}
.device-card{background:var(--bg2);border-radius:var(--radius);padding:24px;text-align:center;border:1px solid var(--border)}
.device-icon{font-size:36px;margin-bottom:10px}
.device-card h4{font-size:15px;font-weight:600;margin-bottom:4px}
.device-card p{color:var(--text2);font-size:13px;line-height:1.5}

/* ===== Stats ===== */

/* ===== CTA ===== */
.cta-wrap{padding:72px 20px}
.cta-box{background:linear-gradient(135deg,#fff0f0,#fff5f0);border-radius:24px;padding:64px 32px;text-align:center;max-width:800px;margin:0 auto;border:1px solid rgba(255,107,107,.15)}
.cta-box h2{font-size:clamp(24px,3.5vw,36px);font-weight:700;margin-bottom:12px}
.cta-box p{color:var(--text2);font-size:15px;margin-bottom:28px;max-width:440px;margin-left:auto;margin-right:auto}

/* ===== Footer ===== */
.footer{background:var(--bg2);border-top:1px solid var(--border);padding:48px 20px 32px}
.footer-inner{max-width:1100px;margin:0 auto;display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:32px}
.footer h5{font-size:13px;font-weight:600;margin-bottom:14px;color:var(--text)}
.footer a{display:block;color:var(--text2);text-decoration:none;font-size:13px;margin-bottom:7px;transition:.2s}
.footer a:hover{color:var(--primary)}
.footer-bottom{max-width:1100px;margin:32px auto 0;padding-top:20px;border-top:1px solid var(--border);display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px}
.footer-bottom p{color:var(--text2);font-size:12px}

/* ===== Legal / About pages ===== */
.page-wrap{padding-top:92px}
.page{max-width:760px;margin:0 auto;padding:32px 20px 80px}
.page h1{font-size:30px;font-weight:700;margin-bottom:6px}
.page .date{color:var(--text2);font-size:14px;margin-bottom:32px;padding-bottom:20px;border-bottom:1px solid var(--border)}
.page h2{font-size:20px;font-weight:600;margin:28px 0 10px;color:var(--text)}
.page h3{font-size:17px;font-weight:600;margin:20px 0 8px;color:var(--text)}
.page p,.page li{color:var(--text2);font-size:15px;line-height:1.8;margin-bottom:6px}
.page ul{padding-left:20px;margin-bottom:12px}
.page strong{color:var(--text)}
.page a{color:var(--primary);text-decoration:none}
.page a:hover{text-decoration:underline}
.back-link{display:inline-flex;align-items:center;gap:6px;color:var(--text2);text-decoration:none;font-size:14px;margin-bottom:24px}
.back-link:hover{color:var(--primary)}

/* ===== About page extra ===== */
.about-hero{text-align:center;padding:60px 20px 40px}
.about-avatar{width:100px;height:100px;border-radius:50%;margin:0 auto 20px;background:linear-gradient(135deg,var(--primary),var(--primary-dark));display:flex;align-items:center;justify-content:center;font-size:40px;color:#fff}
.about-hero h2{font-size:24px;font-weight:700;margin-bottom:4px}
.about-hero p{color:var(--text2);font-size:14px;margin-bottom:20px}
.about-links{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}
.about-links a{display:inline-flex;align-items:center;gap:6px;padding:8px 20px;border-radius:50px;font-size:13px;font-weight:500;text-decoration:none;transition:.2s}
.about-links .link-primary{background:var(--primary);color:#fff}
.about-links .link-primary:hover{opacity:.9}
.about-links .link-outline{border:1px solid var(--border);color:var(--text2)}
.about-links .link-outline:hover{border-color:var(--text)}
.about-bio{margin-top:32px}
.about-bio p{margin-bottom:12px;color:var(--text2);font-size:15px;line-height:1.8}

/* ===== Responsive ===== */
@media(max-width:768px){
  .nav{display:none}
  .nav.open{display:flex;flex-direction:column;position:absolute;top:60px;left:0;right:0;background:var(--bg);border-bottom:1px solid var(--border);padding:12px 16px;gap:2px;box-shadow:0 8px 24px rgba(0,0,0,.08)}
  .nav.open a{padding:10px 12px;border-radius:8px;width:100%}
  .hamburger{display:block}
  .hero{padding:120px 16px 56px}
  .hero h1{font-size:28px}
  .hero p{font-size:15px}
  .hero-btns{flex-direction:column;align-items:center}
  .hero-btns .btn{width:100%;max-width:280px;justify-content:center}
  .section{padding:48px 16px}
  .cta-box{padding:40px 20px}
  .cta-box .hero-btns .btn{max-width:240px}
  .footer-inner{grid-template-columns:repeat(2,1fr)}
  .footer-bottom{flex-direction:column;text-align:center}
  .page-wrap{padding-top:80px}
  .page h1{font-size:24px}
}
@media(max-width:480px){
  .grid-3{grid-template-columns:1fr}
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .footer-inner{grid-template-columns:1fr}
}
/* Stats use the same grid layout as devices */
.stat-card{background:var(--bg2);border-radius:var(--radius);padding:28px;text-align:center;border:1px solid var(--border);transition:.25s}
.stat-card:hover{box-shadow:var(--shadow-hover)}
.stat-num{font-size:36px;font-weight:800;color:var(--primary);margin-bottom:2px}
.stat-label{font-size:14px;color:var(--text2);font-weight:500}