/* style.css - eceye.cn 全站样式 */

/* ===== Reset & Base ===== */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,"Noto Sans","PingFang SC","Microsoft YaHei",sans-serif;font-size:16px;line-height:1.7;color:#333;background:#fff}
a{color:#1a73e8;text-decoration:none;transition:color .2s}
a:hover{color:#1557b0}
img{max-width:100%;height:auto;display:block}
ul,ol{list-style:none}
.container{max-width:1200px;margin:0 auto;padding:0 20px}

/* ===== Header ===== */
.site-header{background:#fff;box-shadow:0 1px 4px rgba(0,0,0,.08);position:sticky;top:0;z-index:100}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:64px}
.logo a{display:flex;align-items:center;text-decoration:none}
.logo img{height:40px;width:auto}
.logo-text-wrap{display:flex;flex-direction:column;margin-left:12px;padding-left:12px;border-left:2px solid #1a73e8}
.logo-text{font-size:18px;font-weight:600;color:#1a1a1a;letter-spacing:2px;line-height:1.3;white-space:nowrap}
.logo-sub{font-size:12px;font-weight:400;color:#888;letter-spacing:1px;text-transform:uppercase;white-space:nowrap}
.main-nav{margin-left:auto}
.nav-list{display:flex;gap:4px}
.nav-item{position:relative}
.nav-link{display:block;padding:8px 16px;font-size:15px;color:#444;border-radius:4px;white-space:nowrap;transition:color .2s,background .2s}
.nav-link:hover{color:#1a73e8;background:#f0f4ff}
.nav-item.has-submenu > .nav-link::after{content:" ▾";font-size:11px;margin-left:2px}
.submenu{position:absolute;top:100%;left:0;background:#fff;box-shadow:0 4px 16px rgba(0,0,0,.12);border-radius:6px;min-width:160px;padding:6px 0;opacity:0;visibility:hidden;transform:translateY(6px);transition:opacity .2s,transform .2s,visibility .2s}
.nav-item.has-submenu:hover .submenu{opacity:1;visibility:visible;transform:translateY(0)}
.submenu a{display:block;padding:8px 18px;font-size:14px;color:#555}
.submenu a:hover{color:#1a73e8;background:#f5f7fa}
.header-actions{display:flex;align-items:center;gap:8px;margin-left:20px}
.header-login{display:flex;align-items:center;justify-content:center;width:36px;height:36px;background:none;border:none;cursor:pointer;color:#444;border-radius:4px;transition:background .2s;flex-shrink:0}
.header-login:hover{background:#f0f2f5}
.header-login svg{width:18px;height:18px}
.lang-switch{position:relative;display:flex;align-items:center}
.lang-toggle{display:flex;align-items:center;justify-content:center;width:36px;height:36px;background:none;border:none;cursor:pointer;color:#444;border-radius:4px;transition:background .2s;flex-shrink:0}
.lang-toggle:hover{background:#f0f2f5}
.lang-toggle svg{width:18px;height:18px}
.lang-dropdown{position:absolute;right:0;top:100%;display:none;background:#fff;box-shadow:0 4px 16px rgba(0,0,0,.12);border-radius:6px;padding:6px 0;min-width:100px;z-index:10}
.lang-dropdown.open{display:block}
.lang-dropdown a{display:block;padding:8px 18px;font-size:14px;color:#555;white-space:nowrap}
.lang-dropdown a:hover{color:#1a73e8;background:#f5f7fa}
.lang-dropdown a.active{color:#1a73e8;font-weight:600}
@media(max-width:768px){
  .search-open .lang-switch{display:none}
}
.header-search-toggle{display:flex;align-items:center;justify-content:center;width:36px;height:36px;background:none;border:none;cursor:pointer;color:#444;border-radius:4px;transition:background .2s;flex-shrink:0}
.header-search-toggle:hover{background:#f0f2f5}
.header-search-toggle svg{width:18px;height:18px}
.header-search-toggle .icon-close{display:none}
.search-open .header-search-toggle .icon-search{display:none}
.search-open .header-search-toggle .icon-close{display:block}
.header-search-bar{display:none;flex:1;margin:0 24px;min-width:0}
.search-open .header-search-bar{display:block}
.header-search-bar form{display:flex;width:100%}
.header-search-bar input{width:100%;padding:8px 0;border:none;border-bottom:2px solid #1a73e8;font-size:16px;outline:none;background:transparent;color:#333}
.header-search-bar input::placeholder{color:#999}
.search-open .main-nav{display:none}
.search-open .mobile-menu-toggle{display:none}
.mobile-menu-toggle{display:none;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer;padding:6px}
.mobile-menu-toggle span{display:block;width:24px;height:2px;background:#333;border-radius:1px}

/* ===== Banner ===== */
.banner{background:linear-gradient(135deg,#0d47a1 0%,#1976d2 50%,#42a5f5 100%);color:#fff;padding:80px 0;text-align:center}
.banner h1{font-size:40px;font-weight:700;margin-bottom:16px;line-height:1.3}
.banner p{font-size:18px;opacity:.9;max-width:700px;margin:0 auto;line-height:1.6}

/* ===== Section Common ===== */
.section{padding:60px 0}
.section-title{font-size:28px;font-weight:700;text-align:center;margin-bottom:12px;color:#1a1a1a}
.section-subtitle{font-size:15px;color:#888;text-align:center;margin-bottom:40px}

/* ===== Content Grid ===== */
.content-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.content-card{background:#fff;border-radius:8px;overflow:hidden;box-shadow:0 1px 6px rgba(0,0,0,.06);transition:box-shadow .3s,transform .3s}
.content-card:hover{box-shadow:0 4px 20px rgba(0,0,0,.12);transform:translateY(-2px)}
.content-card .card-img{height:200px;overflow:hidden;background:#f0f2f5}
.content-card .card-img img{width:100%;height:100%;object-fit:cover;transition:transform .4s}
.content-card:hover .card-img img{transform:scale(1.05)}
.content-card .card-body{padding:20px}
.card-body h3{font-size:17px;font-weight:600;line-height:1.5;margin-bottom:8px}
.card-body h3 a{color:#1a1a1a}
.card-body h3 a:hover{color:#1a73e8}
.card-body .card-meta{font-size:13px;color:#999;display:flex;gap:12px;flex-wrap:wrap}
.card-body .card-desc{font-size:14px;color:#666;margin-top:8px;line-height:1.6}
.card-tag{display:inline-block;padding:2px 8px;font-size:12px;color:#1a73e8;background:#e8f0fe;border-radius:3px;margin:0 2px}

/* ===== Sidebar ===== */
.two-col{display:grid;grid-template-columns:1fr 320px;gap:40px}
.main-col{min-width:0}
.sidebar{position:sticky;top:84px;align-self:start}
.sidebar-widget{background:#f8f9fa;border-radius:8px;padding:24px;margin-bottom:24px}
.sidebar-widget h4{font-size:17px;font-weight:600;margin-bottom:16px;color:#1a1a1a;padding-bottom:10px;border-bottom:2px solid #1a73e8}
.sidebar-list li{padding:10px 0;border-bottom:1px solid #eee}
.sidebar-list li:last-child{border-bottom:none}
.sidebar-list a{font-size:14px;color:#444;display:block;line-height:1.5}
.sidebar-list a:hover{color:#1a73e8}
.sidebar-list .item-date{font-size:12px;color:#aaa;display:block;margin-top:2px}
.tag-cloud{display:flex;flex-wrap:wrap;gap:6px}
.tag-cloud a{display:inline-block;padding:4px 12px;font-size:13px;color:#555;background:#fff;border:1px solid #e0e0e0;border-radius:20px;transition:all .2s}
.tag-cloud a:hover{color:#fff;background:#1a73e8;border-color:#1a73e8}

/* ===== List Page ===== */
.list-header{border-bottom:1px solid #eee;padding-bottom:16px;margin-bottom:24px}
.list-header h1{font-size:26px;font-weight:700}
.list-item{display:flex;gap:20px;padding:20px 0;border-bottom:1px solid #f0f0f0}
.list-item:first-child{padding-top:0}
.list-item .item-thumb{flex-shrink:0;width:220px;height:150px;overflow:hidden;border-radius:6px;background:#f0f2f5}
.list-item .item-thumb img{width:100%;height:100%;object-fit:cover}
.list-item .item-info{flex:1;min-width:0}
.list-item .item-info h3{font-size:18px;font-weight:600;margin-bottom:8px;line-height:1.5}
.list-item .item-info h3 a{color:#1a1a1a}
.list-item .item-info h3 a:hover{color:#1a73e8}
.list-item .item-desc{font-size:14px;color:#777;line-height:1.7;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.list-item .item-meta{font-size:13px;color:#aaa;margin-top:10px;display:flex;gap:14px;flex-wrap:wrap}

/* ===== Pager ===== */
.pager{margin-top:40px;text-align:center}
.pager ul{display:inline-flex;gap:4px}
.pager li a,.pager li span{display:inline-block;padding:8px 14px;font-size:14px;color:#555;background:#fff;border:1px solid #ddd;border-radius:4px;transition:all .2s}
.pager li a:hover{color:#fff;background:#1a73e8;border-color:#1a73e8}
.pager li.active span{color:#fff;background:#1a73e8;border-color:#1a73e8}
.pager li.disabled span{color:#ccc;cursor:not-allowed}

/* ===== Breadcrumb ===== */
.breadcrumb{padding:16px 0;font-size:14px}
.breadcrumb ol{display:flex;flex-wrap:wrap;gap:4px}
.breadcrumb li{color:#888}
.breadcrumb li:not(:last-child)::after{content:"/";margin:0 6px;color:#ccc}
.breadcrumb li a{color:#666}
.breadcrumb li a:hover{color:#1a73e8}
.breadcrumb li.active{color:#333}

/* ===== Article Detail ===== */
.article-header{margin-bottom:30px}
.article-header h1{font-size:28px;font-weight:700;line-height:1.4;margin-bottom:12px}
.article-meta{font-size:14px;color:#999;display:flex;gap:16px;flex-wrap:wrap}
.article-content{font-size:16px;line-height:1.9;color:#333}
.article-content p{margin-bottom:18px}
.article-content img{max-width:100%;border-radius:6px;margin:16px 0}
.article-content h2,.article-content h3{margin:30px 0 12px;font-weight:600}
.article-content h2{font-size:22px}
.article-content h3{font-size:19px}
.article-content ul,.article-content ol{padding-left:24px;margin-bottom:18px}
.article-content li{margin-bottom:6px}
.article-content blockquote{border-left:4px solid #1a73e8;padding:12px 20px;margin:20px 0;background:#f5f7fa;color:#555}
.article-tags{margin-top:30px;display:flex;gap:8px;flex-wrap:wrap}
.article-related{margin-top:50px;padding-top:30px;border-top:1px solid #eee}
.article-related h3{font-size:20px;margin-bottom:20px}

/* ===== Search ===== */
.search-page{padding:60px 0;min-height:60vh}
.search-page h1{font-size:24px;margin-bottom:30px}
.search-item{padding:20px 0;border-bottom:1px solid #f0f0f0}
.search-item h3{font-size:18px;margin-bottom:6px}
.search-item .summary{font-size:14px;color:#777;margin-bottom:6px}
.search-item .date{font-size:13px;color:#aaa}

/* ===== Features Section ===== */
.features-section{padding:60px 0;background:#f8f9fa}
.features-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.feature-card{background:#fff;border-radius:8px;padding:32px 24px;text-align:center;box-shadow:0 1px 6px rgba(0,0,0,.06);transition:box-shadow .3s,transform .3s}
.feature-card:hover{box-shadow:0 4px 20px rgba(0,0,0,.1);transform:translateY(-2px)}
.feature-icon{display:flex;align-items:center;justify-content:center;width:56px;height:56px;margin:0 auto 16px;background:#e8f0fe;border-radius:50%}
.feature-icon svg{width:28px;height:28px;color:#1a73e8}
.feature-card h3{font-size:17px;font-weight:600;color:#1a1a1a;margin-bottom:8px}
.feature-card p{font-size:14px;color:#666;line-height:1.6}

/* ===== Products Section ===== */
.products-section{padding:60px 0}
.products-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.product-card{background:#fff;border-radius:8px;overflow:hidden;box-shadow:0 1px 6px rgba(0,0,0,.06);transition:box-shadow .3s,transform .3s}
.product-card:hover{box-shadow:0 4px 20px rgba(0,0,0,.12);transform:translateY(-2px)}
.product-card .card-img{height:160px;overflow:hidden;background:#f0f2f5}
.product-card .card-img img{width:100%;height:100%;object-fit:cover;transition:transform .4s}
.product-card:hover .card-img img{transform:scale(1.05)}
.product-card .card-body{padding:20px}
.product-card .card-body h3{font-size:17px;font-weight:600;margin-bottom:8px}
.product-card .card-body h3 a{color:#1a1a1a}
.product-card .card-body h3 a:hover{color:#1a73e8}
.product-card .card-body p{font-size:14px;color:#666;line-height:1.6}
@media(max-width:768px){
  .features-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:480px){
  .features-grid{grid-template-columns:1fr}
  .products-grid{grid-template-columns:1fr}
}

/* ===== About Brief ===== */
.about-brief{background:#f4f4f4;padding:60px 0}
.about-brief-title{font-size:24px;font-weight:700;color:#1a1a1a;margin-bottom:32px}
.about-brief-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:40px}
.about-brief-item h3{font-size:18px;font-weight:600;color:#1a1a1a;margin-bottom:12px}
.about-brief-item p{font-size:14px;color:#666;line-height:1.7;margin-bottom:16px}
.about-brief-links{display:flex;flex-wrap:wrap;gap:16px}
.about-brief-links a{font-size:14px;color:#1a73e8;font-weight:500}
.about-brief-links a:hover{text-decoration:underline}
@media(max-width:768px){
  .about-brief-grid{grid-template-columns:1fr;gap:28px}
}

/* ===== Footer ===== */
.site-footer{background:#1a1a2e;color:#ccc;padding:50px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:40px}
.footer-grid h4{color:#fff;font-size:17px;margin-bottom:16px}
.footer-about p{font-size:14px;line-height:1.7;color:#aaa}
.footer-links li,.footer-contact p{margin-bottom:8px;font-size:14px}
.footer-links a{color:#aaa}
.footer-links a:hover{color:#fff}
.footer-contact p{color:#aaa}
.footer-bottom{border-top:1px solid rgba(255,255,255,.08);margin-top:36px;padding:20px 0;text-align:center;font-size:13px;color:#888}
.footer-bottom .icp{margin-top:6px}
.footer-bottom .icp a{color:#888}
.footer-bottom .icp a:hover{color:#aaa}

/* ===== Responsive ===== */
@media(max-width:960px){
  .content-grid{grid-template-columns:repeat(2,1fr)}
  .two-col{grid-template-columns:1fr}
  .sidebar{position:static}
  .list-item .item-thumb{width:160px;height:110px}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:768px){
  .header-inner{height:56px}
  .mobile-menu-toggle{display:flex}
  .search-open .header-search-bar{margin:0 12px}
  .search-open .logo{display:none}
  .main-nav{position:fixed;top:56px;left:0;right:0;background:#fff;box-shadow:0 4px 12px rgba(0,0,0,.1);padding:12px 0;display:none}
  .main-nav.open{display:block}
  .nav-list{flex-direction:column;gap:0}
  .nav-link{padding:12px 20px;border-radius:0}
  .submenu{position:static;box-shadow:none;opacity:1;visibility:visible;transform:none;padding:0 0 0 20px;display:none}
  .nav-item.has-submenu:hover .submenu{display:block}
  .header-actions{margin-left:auto}
  .banner{padding:50px 0}
  .banner h1{font-size:28px}
  .content-grid{grid-template-columns:1fr}
  .list-item{flex-direction:column}
  .list-item .item-thumb{width:100%;height:180px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
}