/* 快鸭 - 品牌官网样式 */
:root{--primary:#1a73e8;--primary-dark:#1557b0;--accent:#ff6b35;--bg:#f8f9fa;--text:#1a1a2e;--text-light:#555;--border:#e0e0e0;--card-bg:#fff;--shadow:0 2px 12px rgba(0,0,0,.08);--radius:12px}
*{margin:0;padding:0;box-sizing:border-box}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,"PingFang SC","Microsoft YaHei",sans-serif;color:var(--text);line-height:1.7;background:var(--bg)}
a{color:var(--primary);text-decoration:none;transition:color .2s}
a:hover{color:var(--primary-dark)}
img{max-width:100%;height:auto}
.container{max-width:1200px;margin:0 auto;padding:0 20px}
/* Header */
.site-header{background:#fff;border-bottom:1px solid var(--border);position:sticky;top:0;z-index:1000;box-shadow:0 1px 4px rgba(0,0,0,.04)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:64px}
.logo{display:flex;align-items:center;gap:10px;font-size:22px;font-weight:700;color:var(--text)}
.logo img{width:36px;height:36px}
.nav-menu{display:flex;gap:28px;list-style:none}
.nav-menu a{color:var(--text);font-size:15px;font-weight:500}
.nav-menu a:hover{color:var(--primary)}
.nav-cta{display:inline-flex;align-items:center;padding:8px 20px;background:var(--primary);color:#fff!important;border-radius:6px;font-weight:600;font-size:14px}
.nav-cta:hover{background:var(--primary-dark);color:#fff!important}
/* Hero */
.hero{background:linear-gradient(135deg,#e8f0fe 0%,#f0f4ff 50%,#fff 100%);padding:80px 0 60px;overflow:hidden}
.hero-grid{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center}
.hero h1{font-size:42px;line-height:1.25;margin-bottom:16px;color:var(--text)}
.hero h1 span{color:var(--primary)}
.hero-sub{font-size:18px;color:var(--text-light);margin-bottom:28px;line-height:1.8}
.hero-btns{display:flex;gap:14px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;gap:8px;padding:12px 28px;border-radius:8px;font-size:16px;font-weight:600;transition:all .2s}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-dark);color:#fff}
.btn-outline{border:2px solid var(--primary);color:var(--primary)}
.btn-outline:hover{background:var(--primary);color:#fff}
/* Simulator */
.simulator{position:relative;perspective:1000px}
.sim-device{background:#1a1a2e;border-radius:20px;padding:12px;box-shadow:0 20px 60px rgba(0,0,0,.15);transform:rotateY(-5deg) rotateX(2deg);transition:transform .3s}
.sim-device:hover{transform:rotateY(0) rotateX(0)}
.sim-screen{background:#fff;border-radius:12px;overflow:hidden;aspect-ratio:16/10}
.sim-screen img{width:100%;height:100%;object-fit:cover}
.sim-notch{width:80px;height:6px;background:#333;border-radius:3px;margin:8px auto 0}
/* Announcement */
.announcement{background:#fff3cd;border:1px solid #ffc107;padding:12px 20px;border-radius:8px;margin:20px 0;display:flex;align-items:center;gap:10px}
.announcement strong{color:#856404}
/* Section */
.section{padding:80px 0}
.section-title{text-align:center;font-size:32px;margin-bottom:12px}
.section-desc{text-align:center;color:var(--text-light);font-size:16px;margin-bottom:48px;max-width:600px;margin-left:auto;margin-right:auto}
/* Features */
.features-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.feature-card{background:var(--card-bg);border-radius:var(--radius);padding:32px 24px;box-shadow:var(--shadow);transition:transform .2s,box-shadow .2s}
.feature-card:hover{transform:translateY(-4px);box-shadow:0 8px 24px rgba(0,0,0,.12)}
.feature-icon{width:48px;height:48px;background:linear-gradient(135deg,var(--primary),#4285f4);border-radius:12px;display:flex;align-items:center;justify-content:center;color:#fff;font-size:24px;margin-bottom:16px}
.feature-card h3{font-size:18px;margin-bottom:8px}
.feature-card p{color:var(--text-light);font-size:14px;line-height:1.7}
/* Compare */
.compare-table{width:100%;border-collapse:collapse;background:#fff;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}
.compare-table th,.compare-table td{padding:14px 20px;text-align:center;border-bottom:1px solid var(--border)}
.compare-table th{background:var(--primary);color:#fff;font-weight:600}
.compare-table tr:last-child td{border-bottom:none}
.compare-table .highlight{background:#e8f0fe;font-weight:600}
.check{color:#34a853;font-weight:700}
.cross{color:#ea4335;font-weight:700}
/* News Tabs */
.news-tabs{display:flex;gap:12px;justify-content:center;margin-bottom:32px;flex-wrap:wrap}
.news-tab{padding:8px 20px;border-radius:20px;background:#fff;border:1px solid var(--border);font-size:14px;font-weight:500;color:var(--text);cursor:pointer}
.news-tab.active,.news-tab:hover{background:var(--primary);color:#fff;border-color:var(--primary)}
.news-list{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-card{background:#fff;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:transform .2s}
.news-card:hover{transform:translateY(-4px)}
.news-card img{width:100%;height:180px;object-fit:cover}
.news-card-body{padding:20px}
.news-card h3{font-size:16px;margin-bottom:8px;line-height:1.5}
.news-card p{font-size:13px;color:var(--text-light);line-height:1.6}
.news-meta{font-size:12px;color:#999;margin-top:10px;display:flex;gap:12px}
/* Reviews */
.reviews-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.review-card{background:#fff;border-radius:var(--radius);padding:24px;box-shadow:var(--shadow)}
.review-stars{color:#fbbc04;font-size:18px;margin-bottom:10px}
.review-text{font-size:14px;color:var(--text-light);line-height:1.7;margin-bottom:14px;font-style:italic}
.review-author{display:flex;align-items:center;gap:10px}
.review-avatar{width:40px;height:40px;border-radius:50%;background:var(--primary);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:16px}
.review-name{font-weight:600;font-size:14px}
.review-role{font-size:12px;color:#999}
/* Download */
.download-section{background:linear-gradient(135deg,#1a73e8,#4285f4);color:#fff;padding:80px 0;text-align:center}
.download-section h2{color:#fff;font-size:32px;margin-bottom:12px}
.download-section p{color:rgba(255,255,255,.85);margin-bottom:32px;font-size:16px}
.download-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:16px;max-width:800px;margin:0 auto}
.download-btn{display:flex;flex-direction:column;align-items:center;gap:8px;padding:20px 12px;background:rgba(255,255,255,.15);border-radius:12px;color:#fff;font-size:14px;font-weight:500;transition:background .2s}
.download-btn:hover{background:rgba(255,255,255,.25);color:#fff}
.download-btn .dl-icon{font-size:32px}
/* Trust */
.trust-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;text-align:center}
.trust-item{padding:24px}
.trust-num{font-size:36px;font-weight:700;color:var(--primary);margin-bottom:4px}
.trust-label{font-size:14px;color:var(--text-light)}
/* Scenarios */
.scenarios-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.scenario-card{background:#fff;border-radius:var(--radius);padding:28px;box-shadow:var(--shadow);text-align:center}
.scenario-card h3{font-size:17px;margin-bottom:8px}
.scenario-card p{font-size:14px;color:var(--text-light);line-height:1.7}
/* FAQ */
.faq-list{max-width:800px;margin:0 auto}
.faq-item{background:#fff;border-radius:var(--radius);margin-bottom:12px;box-shadow:var(--shadow);overflow:hidden}
.faq-q{padding:20px 24px;font-weight:600;font-size:16px;cursor:pointer;display:flex;justify-content:space-between;align-items:center}
.faq-a{padding:0 24px 20px;color:var(--text-light);font-size:14px;line-height:1.8}
.faq-steps{list-style:none;counter-reset:step}
.faq-steps li{counter-increment:step;padding:6px 0 6px 32px;position:relative}
.faq-steps li::before{content:counter(step);position:absolute;left:0;top:6px;width:22px;height:22px;background:var(--primary);color:#fff;border-radius:50%;font-size:12px;display:flex;align-items:center;justify-content:center;font-weight:700}
/* CTA */
.cta-section{background:#1a1a2e;color:#fff;padding:60px 0;text-align:center}
.cta-section h2{font-size:28px;margin-bottom:12px}
.cta-section p{color:rgba(255,255,255,.7);margin-bottom:24px}
/* Footer */
.site-footer{background:#111;color:#aaa;padding:48px 0 24px;font-size:14px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;margin-bottom:32px}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:14px}
.footer-col a{color:#aaa;display:block;padding:3px 0;font-size:13px}
.footer-col a:hover{color:#fff}
.footer-bottom{border-top:1px solid #333;padding-top:20px;text-align:center;font-size:12px;color:#666}
/* Breadcrumb */
.breadcrumb{padding:16px 0;font-size:13px;color:#999}
.breadcrumb a{color:#999}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb span{margin:0 6px}
/* Article */
.article-layout{display:grid;grid-template-columns:1fr 300px;gap:40px;padding:40px 0}
.article-main{background:#fff;border-radius:var(--radius);padding:32px;box-shadow:var(--shadow)}
.article-main h1{font-size:28px;margin-bottom:12px;line-height:1.4}
.article-meta{display:flex;gap:16px;font-size:13px;color:#999;margin-bottom:24px;padding-bottom:16px;border-bottom:1px solid var(--border)}
.article-main h2{font-size:22px;margin:28px 0 12px;padding-bottom:8px;border-bottom:2px solid var(--primary)}
.article-main p{margin-bottom:16px;font-size:15px;line-height:1.9;color:#333}
.article-main img{border-radius:8px;margin:16px 0}
.article-toc{background:#f8f9fa;border-radius:8px;padding:16px;margin-bottom:24px}
.article-toc h4{font-size:14px;margin-bottom:8px}
.article-toc ol{padding-left:20px;font-size:13px}
.article-toc li{padding:3px 0}
.article-nav{display:flex;justify-content:space-between;margin-top:32px;padding-top:20px;border-top:1px solid var(--border);font-size:14px}
/* Sidebar */
.sidebar{position:sticky;top:80px;align-self:start}
.sidebar-widget{background:#fff;border-radius:var(--radius);padding:20px;box-shadow:var(--shadow);margin-bottom:20px}
.sidebar-widget h4{font-size:15px;margin-bottom:12px;padding-bottom:8px;border-bottom:2px solid var(--primary)}
.sidebar-widget ul{list-style:none}
.sidebar-widget li{padding:6px 0;border-bottom:1px solid #f0f0f0;font-size:13px}
.sidebar-widget li:last-child{border-bottom:none}
.sidebar-widget li a{color:var(--text)}
/* Comments */
.comments{margin-top:32px}
.comment{background:#f8f9fa;border-radius:8px;padding:16px;margin-bottom:12px}
.comment-header{display:flex;align-items:center;gap:10px;margin-bottom:8px}
.comment-avatar{width:32px;height:32px;border-radius:50%;background:var(--primary);color:#fff;display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:700}
.comment-name{font-weight:600;font-size:14px}
.comment-date{font-size:12px;color:#999}
.comment-text{font-size:14px;line-height:1.7;color:#444}
/* 404 */
.page-404{text-align:center;padding:120px 20px}
.page-404 h1{font-size:72px;color:var(--primary);margin-bottom:16px}
.page-404 p{font-size:18px;color:var(--text-light);margin-bottom:24px}
/* Responsive */
@media(max-width:992px){.hero-grid{grid-template-columns:1fr}.features-grid,.news-list,.reviews-grid,.scenarios-grid{grid-template-columns:repeat(2,1fr)}.download-grid{grid-template-columns:repeat(3,1fr)}.trust-grid{grid-template-columns:repeat(2,1fr)}.footer-grid{grid-template-columns:1fr 1fr}.article-layout{grid-template-columns:1fr}.simulator{display:none}}
@media(max-width:576px){.features-grid,.news-list,.reviews-grid,.scenarios-grid,.download-grid,.trust-grid,.footer-grid{grid-template-columns:1fr}.hero h1{font-size:28px}.section{padding:48px 0}}