/* ===== Shadowrocket 小火箭 shadowrocket-sdk.com.cn 全站样式 · 蓝色主题 ===== */
:root{
  --primary: #1778F2;
  --primary-dark: #0B5FC9;
  --primary-light: #4A95F5;
  --primary-soft: #EBF3FE;
  --primary-faint: #F5F9FF;
  --deep: #151929;
  --slate: #3F4C7C;
  --background: #FFFFFF;
  --card: #FFFFFF;
  --card-soft: #F6F6F9;
  --border: #E8EBF2;
  --border-strong: #D0D4E3;
  --foreground: #151929;
  --muted: #5A6478;
  --muted-strong: #3F4C7C;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow-card: 0 4px 20px -4px rgba(21,25,41,.08);
  --shadow-elevated: 0 16px 48px -12px rgba(21,25,41,.16);
  --gradient-primary: linear-gradient(135deg, #1778F2, #4A95F5);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Helvetica Neue","Microsoft YaHei",sans-serif;background:var(--background);color:var(--foreground);line-height:1.7;font-size:16px;-webkit-font-smoothing:antialiased}
a{text-decoration:none;color:inherit}
img{max-width:100%;height:auto;display:block}
.container{max-width:1180px;margin:0 auto;padding:0 28px}

/* ===== 顶部导航 ===== */
.site-header{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.92);backdrop-filter:blur(14px);border-bottom:1px solid var(--border)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:70px;gap:20px}
.logo{display:flex;align-items:center;gap:11px;font-weight:800;font-size:21px;letter-spacing:-.3px;color:var(--foreground);flex-shrink:0}
.logo-mark{width:40px;height:40px;border-radius:11px;flex:none;display:block;object-fit:contain}
.nav-links{display:flex;align-items:center;gap:28px;list-style:none;flex:1;justify-content:center}
.nav-links a{font-weight:600;font-size:15px;color:var(--muted-strong)}
.nav-links a:hover,.nav-links a.active{color:var(--primary)}
.nav-cta{display:flex;align-items:center;gap:12px;flex-shrink:0}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 26px;border-radius:100px;font-weight:700;font-size:15px;border:1px solid transparent;cursor:pointer;transition:.18s;white-space:nowrap}
.btn-primary{background:var(--gradient-primary);color:#fff;box-shadow:0 8px 20px rgba(23,120,242,.32)}
.btn-primary:hover{color:#fff;transform:translateY(-1px)}
.btn-outline{background:transparent;color:var(--primary);border:1px solid var(--border-strong)}
.btn-outline:hover{color:var(--primary-dark);border-color:var(--primary)}
.btn-lg{padding:16px 36px;font-size:16px}
.btn-sm{padding:10px 20px;font-size:14px}
.nav-toggle{display:none;background:none;border:none;font-size:26px;color:var(--foreground);cursor:pointer;line-height:1}

/* ===== Hero（左右分栏：左文字，右下载按钮） ===== */
.hero{padding:88px 0 64px;background:linear-gradient(180deg, #F5F9FF 0%, #FFFFFF 100%)}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.hero .en{display:block;font-size:15px;color:var(--slate);letter-spacing:1px;margin-bottom:18px}
.hero h1{font-size:46px;line-height:1.22;font-weight:800;letter-spacing:-.5px;margin-bottom:20px}
.hero h1 .hl{color:var(--primary)}
.hero .sub{font-size:18px;color:var(--muted);max-width:560px;margin-bottom:36px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:16px}
.hero-note{font-size:13px;color:var(--muted)}

/* ===== 下载按钮矩阵（参考站：Windows/IOS/Mac/Linux） ===== */
.dlbtns{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.dlbtn{background:var(--card);border:1px solid var(--border);border-radius:var(--radius-sm);padding:18px 16px;text-align:center;transition:.2s}
.dlbtn:hover{transform:translateY(-2px);box-shadow:var(--shadow-card);border-color:var(--primary)}
.dlbtn .os{font-size:28px;margin-bottom:6px}
.dlbtn .name{font-weight:700;font-size:15px}
.dlbtn .tag{font-size:12px;color:var(--muted)}

/* ===== 区块通用 ===== */
.section{padding:72px 0}
.section.bordered{border-top:1px solid var(--border)}
.section-head{max-width:720px;margin:0 auto 52px;text-align:center}
.section-head .eyebrow{display:inline-block;font-size:14px;font-weight:700;letter-spacing:2px;color:var(--primary);margin-bottom:12px}
.section-head h2{font-size:34px;font-weight:800;margin-bottom:14px;letter-spacing:-.5px}
.section-head p{color:var(--muted);font-size:17px}

/* ===== 特性卡（参考站） ===== */
.feat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.feat-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:28px 24px;transition:.2s}
.feat-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-card);border-color:var(--border-strong)}
.feat-card .ico{width:48px;height:48px;border-radius:13px;background:var(--primary-soft);color:var(--primary);display:flex;align-items:center;justify-content:center;font-size:22px;margin-bottom:14px}
.feat-card h3{font-size:17px;font-weight:700;margin-bottom:8px}
.feat-card p{font-size:14px;color:var(--muted)}

/* ===== 价格卡（参考站 3 档） ===== */
.pricing-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;align-items:stretch}
.plan{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:32px 28px;text-align:center;display:flex;flex-direction:column;position:relative;transition:.2s}
.plan:hover{transform:translateY(-4px);box-shadow:var(--shadow-elevated)}
.plan.featured{border:2px solid var(--primary);box-shadow:var(--shadow-elevated)}
.plan .pop{position:absolute;top:-13px;left:50%;transform:translateX(-50%);background:var(--gradient-primary);color:#fff;font-size:12px;font-weight:700;padding:4px 16px;border-radius:999px}
.plan h3{font-size:18px;font-weight:700;margin-bottom:6px}
.plan .price{font-size:40px;font-weight:800;color:var(--primary);line-height:1;margin:14px 0 4px}
.plan .price small{font-size:15px;font-weight:600;color:var(--muted)}
.plan .per{font-size:13px;color:var(--muted);margin-bottom:20px}
.plan ul{list-style:none;text-align:left;margin-bottom:24px;flex:1}
.plan ul li{padding:7px 0;font-size:14px;color:var(--muted-strong);display:flex;gap:9px;align-items:flex-start}
.plan ul li::before{content:"✓";color:var(--primary);font-weight:800;flex:none}
.pay-methods{display:flex;gap:10px;justify-content:center;margin-top:28px;flex-wrap:wrap}
.pay-badge{border:1px solid var(--border);border-radius:9px;padding:7px 16px;font-size:13px;color:var(--muted-strong);background:var(--card)}

/* ===== 评价卡 ===== */
.review-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.review{background:var(--card-soft);border:1px solid var(--border);border-radius:var(--radius);padding:26px;transition:.2s}
.review:hover{transform:translateY(-3px);box-shadow:var(--shadow-card)}
.review .stars{color:#FFB400;font-size:18px;margin-bottom:12px}
.review .quote{font-size:15px;color:var(--foreground);margin-bottom:16px;line-height:1.7}
.review .who{font-size:13px;color:var(--muted)}

/* ===== 文章列表 ===== */
.post-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.post-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:24px;display:block;transition:.2s}
.post-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-card);border-color:var(--border-strong)}
.post-card .date{font-size:12px;color:var(--muted);margin-bottom:8px}
.post-card h3{font-size:16px;font-weight:700;margin-bottom:8px;color:var(--foreground)}
.post-card p{font-size:13px;color:var(--muted)}
.post-card:hover h3{color:var(--primary)}

/* ===== FAQ ===== */
.faq-list{max-width:800px;margin:0 auto}
.faq-item{background:var(--card);border:1px solid var(--border);border-radius:var(--radius-sm);margin-bottom:12px;overflow:hidden}
.faq-q{padding:18px 22px;font-weight:700;font-size:16px;cursor:pointer;display:flex;justify-content:space-between;align-items:center;gap:12px;user-select:none}
.faq-q::after{content:"+";font-size:22px;color:var(--primary);font-weight:700;flex:none}
.faq-item.open .faq-q::after{content:"−"}
.faq-a{display:none;padding:0 22px 20px;color:var(--muted-strong);font-size:15px;border-top:1px dashed var(--border);padding-top:14px}
.faq-item.open .faq-a{display:block}

/* ===== 下载页 ===== */
.dl-hero{text-align:center;padding:80px 0 48px}
.dl-hero .eyebrow{display:inline-block;font-size:14px;font-weight:700;letter-spacing:2px;color:var(--primary);margin-bottom:16px}
.dl-hero h1{font-size:42px;font-weight:800;margin-bottom:16px}
.dl-hero p{font-size:18px;color:var(--muted);max-width:660px;margin:0 auto}
.dl-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-bottom:24px}
.dl-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:30px 26px;text-align:center;transition:.2s;position:relative}
.dl-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-elevated)}
.dl-card .hot{position:absolute;top:16px;right:16px;background:var(--gradient-primary);color:#fff;font-size:12px;font-weight:700;padding:3px 10px;border-radius:999px}
.dl-card>img{width:100%;height:150px;object-fit:cover;border-radius:12px;margin-bottom:16px;background:var(--primary-faint)}
.dl-card h3{font-size:20px;font-weight:700;margin-bottom:6px}
.dl-ver{font-size:14px;color:var(--muted);margin-bottom:18px}
.dl-meta{font-size:13px;color:var(--muted);margin-top:14px;border-top:1px dashed var(--border);padding-top:12px}

/* ===== 文章页 ===== */
.article-hero{padding:40px 0 8px}
.breadcrumb{font-size:14px;color:var(--muted);margin-bottom:16px}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--primary)}
.article-hero h1{font-size:32px;font-weight:800;line-height:1.35;margin-bottom:14px}
.article-meta{font-size:13px;color:var(--muted);display:flex;gap:16px;flex-wrap:wrap;margin-bottom:8px}
.article-body{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:40px 44px;margin:24px 0 40px}
.article-body h2{font-size:24px;font-weight:800;margin:30px 0 14px}
.article-body h3{font-size:19px;font-weight:700;margin:24px 0 10px}
.article-body p{margin-bottom:16px;color:var(--muted-strong);font-size:16px}
.article-body ul,.article-body ol{margin:0 0 18px 22px}
.article-body li{margin-bottom:8px;color:var(--muted-strong)}
.article-body strong{color:var(--foreground)}
.article-body .tip{background:var(--primary-faint);border-left:4px solid var(--primary);padding:14px 18px;border-radius:0 10px 10px 0;margin:18px 0;font-size:15px}
.article-body>img{width:100%;max-height:320px;object-fit:cover;border-radius:14px;margin-bottom:22px;background:var(--primary-faint)}
.article-cta{background:var(--card-soft);border:1px solid var(--border);border-radius:var(--radius);padding:26px 28px;text-align:center;margin-top:28px}
.article-cta h3{font-size:19px;font-weight:700;margin-bottom:14px}

/* ===== 页脚 ===== */
.site-footer{background:#FFFFFF;color:var(--muted-strong);margin-top:20px;border-top:1px solid var(--border)}
.footer-top{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;padding:54px 0 40px}
.footer-brand .logo{color:var(--foreground)}
.footer-brand p{font-size:14px;color:var(--muted);margin-top:14px;max-width:300px}
.footer-col h4{color:var(--foreground);font-size:15px;font-weight:700;margin-bottom:16px}
.footer-col ul{list-style:none}
.footer-col li{margin-bottom:10px}
.footer-col a{color:var(--muted-strong);font-size:14px}
.footer-col a:hover{color:var(--primary)}
.footer-bottom{border-top:1px solid var(--border);padding:20px 0;text-align:center;font-size:13px;color:var(--muted)}

/* ===== 404 ===== */
.err-wrap{text-align:center;padding:90px 24px}
.err-code{font-size:100px;font-weight:800;color:var(--primary);line-height:1;letter-spacing:-3px}
.err-wrap h1{font-size:26px;margin:16px 0 10px}
.err-wrap p{color:var(--muted);margin-bottom:26px}

/* ===== 响应式 ===== */
@media (max-width: 900px){
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .feat-grid,.review-grid,.pricing-grid{grid-template-columns:1fr}
  .dlbtns{grid-template-columns:repeat(2,1fr)}
  .dl-grid{grid-template-columns:1fr}
  .footer-top{grid-template-columns:1fr 1fr;gap:28px}
  .post-grid{grid-template-columns:1fr 1fr}
  .hero h1{font-size:38px}
}
@media (max-width: 768px){
  .nav-links{display:none;position:absolute;top:70px;left:0;right:0;background:#fff;flex-direction:column;padding:12px;border-bottom:1px solid var(--border);box-shadow:var(--shadow-elevated)}
  .nav-links.open{display:flex}
  .nav-links a{padding:12px 16px;width:100%}
  .nav-toggle{display:block}
  .nav-cta .btn-outline{display:none}
  .hero{padding:60px 0 48px}
  .hero h1{font-size:32px}
  .section{padding:52px 0}
  .section-head h2{font-size:27px}
  .article-body{padding:26px 22px}
  .article-hero h1{font-size:25px}
}
@media (max-width: 480px){
  .dlbtns{grid-template-columns:1fr 1fr}
  .post-grid{grid-template-columns:1fr}
  .footer-top{grid-template-columns:1fr}
  .hero-actions .btn{width:100%;justify-content:center}
  .btn{padding:11px 20px}
  .container{padding:0 18px}
}