/* 国产主播汽车改装视频社区 - 原创样式 */
/* 配色: 法拉利红#c0392b 深蓝灰#1a1e2e 金色#f39c12 暖白#faf9f6 */

*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;font-size:16px}
body{font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB",Arial,sans-serif;color:#2d3436;background:#faf9f6;line-height:1.7}
a{color:#c0392b;text-decoration:none;transition:color .3s}
a:hover{color:#e74c3c}
img{max-width:100%;height:auto;display:block}
.drt{position:absolute;left:-9999px;top:-9999px;width:0;height:0;overflow:hidden;opacity:0;pointer-events:none;z-index:-1}

/* Header */
.kkr-header{background:#1a1e2e;padding:0;position:sticky;top:0;z-index:1000;box-shadow:0 2px 12px rgba(0,0,0,.3)}
.kkr-header-inner{max-width:1280px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;padding:0 20px;height:68px}
.kkr-logo{display:flex;align-items:center;gap:10px}
.kkr-logo img{height:42px;width:auto}
.kkr-logo span{color:#fff;font-size:22px;font-weight:700;letter-spacing:1px}
.kkr-nav{display:flex;gap:0}
.kkr-nav a{color:#dfe6e9;padding:22px 16px;font-size:15px;display:block;transition:all .3s;border-bottom:3px solid transparent}
.kkr-nav a:hover,.kkr-nav a.active{color:#fff;background:rgba(192,57,43,.15);border-bottom-color:#c0392b}
.kkr-hamburger{display:none;flex-direction:column;gap:5px;cursor:pointer;padding:10px}
.kkr-hamburger span{width:24px;height:2px;background:#fff;transition:.3s}

/* Search Box */
.kkr-search{position:relative;margin-left:16px}
.kkr-search input{background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.2);color:#fff;padding:8px 36px 8px 14px;border-radius:20px;font-size:13px;width:180px;transition:all .3s}
.kkr-search input::placeholder{color:rgba(255,255,255,.5)}
.kkr-search input:focus{outline:none;border-color:#c0392b;background:rgba(255,255,255,.18);width:220px}
.kkr-search button{position:absolute;right:8px;top:50%;transform:translateY(-50%);background:none;border:none;color:#dfe6e9;cursor:pointer;font-size:16px}

/* Hero Banner */
.kkr-hero{position:relative;height:520px;overflow:hidden;background:#1a1e2e}
.kkr-hero img{width:100%;height:100%;object-fit:cover;opacity:.65}
.kkr-hero-overlay{position:absolute;inset:0;display:flex;flex-direction:column;justify-content:center;align-items:center;text-align:center;padding:20px;background:linear-gradient(180deg,rgba(26,30,46,.3) 0%,rgba(26,30,46,.7) 100%)}
.kkr-hero h1{color:#fff;font-size:42px;margin-bottom:12px;text-shadow:0 2px 8px rgba(0,0,0,.5)}
.kkr-hero h1 em{font-style:normal;color:#c0392b}
.kkr-hero p{color:#dfe6e9;font-size:18px;max-width:700px;line-height:1.8}
.kkr-hero .kkr-btn{margin-top:24px}

/* Buttons */
.kkr-btn{display:inline-block;background:#c0392b;color:#fff;padding:12px 32px;border-radius:4px;font-size:15px;font-weight:600;transition:all .3s;border:none;cursor:pointer}
.kkr-btn:hover{background:#e74c3c;color:#fff;transform:translateY(-2px);box-shadow:0 4px 12px rgba(192,57,43,.4)}
.kkr-btn-outline{background:transparent;border:2px solid #c0392b;color:#c0392b}
.kkr-btn-outline:hover{background:#c0392b;color:#fff}
.kkr-btn-gold{background:#f39c12;color:#1a1e2e}
.kkr-btn-gold:hover{background:#f1c40f}

/* Sections */
.kkr-section{padding:60px 20px}
.kkr-section:nth-child(even){background:#f0efeb}
.kkr-container{max-width:1200px;margin:0 auto}
.kkr-section-head{text-align:center;margin-bottom:40px}
.kkr-section-head h2{font-size:30px;color:#1a1e2e;margin-bottom:8px;position:relative;display:inline-block}
.kkr-section-head h2::after{content:'';position:absolute;bottom:-6px;left:50%;transform:translateX(-50%);width:60px;height:3px;background:#c0392b;border-radius:2px}
.kkr-section-head p{color:#636e72;font-size:15px;margin-top:14px}

/* Video Grid */
.kkr-vgrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:24px}
.kkr-vcard{background:#fff;border-radius:8px;overflow:hidden;box-shadow:0 2px 10px rgba(0,0,0,.08);transition:all .35s;position:relative}
.kkr-vcard:hover{transform:translateY(-6px);box-shadow:0 8px 24px rgba(192,57,43,.15)}
.kkr-vcard-thumb{position:relative;padding-top:56.25%;overflow:hidden;background:#1a1e2e}
.kkr-vcard-thumb img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .4s}
.kkr-vcard:hover .kkr-vcard-thumb img{transform:scale(1.06)}
.kkr-vcard-play{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;opacity:0;transition:opacity .3s;background:rgba(26,30,46,.45)}
.kkr-vcard:hover .kkr-vcard-play{opacity:1}
.kkr-vcard-play span{width:56px;height:56px;background:#c0392b;border-radius:50%;display:flex;align-items:center;justify-content:center;color:#fff;font-size:22px;box-shadow:0 2px 12px rgba(192,57,43,.5)}
.kkr-vcard-dur{position:absolute;bottom:8px;right:8px;background:rgba(0,0,0,.75);color:#fff;font-size:12px;padding:2px 8px;border-radius:3px}
.kkr-vcard-body{padding:14px 16px}
.kkr-vcard-body h3{font-size:15px;color:#1a1e2e;margin-bottom:6px;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.kkr-vcard-meta{display:flex;gap:12px;color:#b2bec3;font-size:12px}
.kkr-vcard-meta span{display:flex;align-items:center;gap:3px}
.kkr-vcard-tags{display:flex;gap:6px;flex-wrap:wrap;margin-top:8px}
.kkr-vcard-tags span{background:#ffeaa7;color:#6c5ce7;font-size:11px;padding:2px 8px;border-radius:10px}

/* AI Section */
.kkr-ai-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.kkr-ai-card{background:linear-gradient(135deg,#1a1e2e 0%,#2d3436 100%);border-radius:10px;padding:32px 24px;text-align:center;color:#fff;transition:transform .3s}
.kkr-ai-card:hover{transform:translateY(-4px)}
.kkr-ai-card .ai-icon{font-size:40px;margin-bottom:16px}
.kkr-ai-card h3{font-size:18px;margin-bottom:10px;color:#f39c12}
.kkr-ai-card p{font-size:14px;color:#b2bec3;line-height:1.7}

/* Community Tabs */
.kkr-tabs{display:flex;justify-content:center;gap:8px;margin-bottom:30px;flex-wrap:wrap}
.kkr-tab{padding:10px 24px;background:#fff;border:2px solid #dfe6e9;border-radius:25px;cursor:pointer;font-size:14px;transition:all .3s;color:#636e72}
.kkr-tab:hover,.kkr-tab.active{background:#c0392b;color:#fff;border-color:#c0392b}

/* Expert Cards */
.kkr-expert-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.kkr-expert-card{background:#fff;border-radius:10px;overflow:hidden;box-shadow:0 2px 12px rgba(0,0,0,.08);text-align:center;padding:24px 16px;transition:all .3s}
.kkr-expert-card:hover{box-shadow:0 6px 20px rgba(192,57,43,.12);transform:translateY(-4px)}
.kkr-expert-card img{width:100px;height:100px;border-radius:50%;object-fit:cover;margin:0 auto 14px;border:3px solid #c0392b}
.kkr-expert-card h4{font-size:16px;color:#1a1e2e;margin-bottom:4px}
.kkr-expert-card .role{color:#c0392b;font-size:13px;margin-bottom:8px}
.kkr-expert-card p{font-size:13px;color:#636e72;line-height:1.6}
.kkr-expert-card .awards{color:#f39c12;font-size:12px;margin-top:8px}

/* Brand Wall */
.kkr-brand-wall{display:flex;justify-content:center;gap:40px;flex-wrap:wrap;align-items:center;padding:20px 0}
.kkr-brand-wall span{font-size:20px;color:#b2bec3;font-weight:700;padding:12px 20px;border:1px solid #dfe6e9;border-radius:8px;transition:all .3s}
.kkr-brand-wall span:hover{color:#c0392b;border-color:#c0392b}

/* How-To Steps */
.kkr-steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;counter-reset:step}
.kkr-step{background:#fff;padding:28px 20px;border-radius:8px;text-align:center;box-shadow:0 2px 8px rgba(0,0,0,.06);position:relative;counter-increment:step}
.kkr-step::before{content:counter(step);width:40px;height:40px;background:#c0392b;color:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:18px;font-weight:700;margin:0 auto 14px}
.kkr-step h4{font-size:16px;color:#1a1e2e;margin-bottom:8px}
.kkr-step p{font-size:13px;color:#636e72}

/* Reviews */
.kkr-review-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.kkr-review{background:#fff;padding:24px;border-radius:8px;box-shadow:0 2px 8px rgba(0,0,0,.06);position:relative}
.kkr-review::before{content:'"';position:absolute;top:10px;left:16px;font-size:48px;color:#c0392b;opacity:.2;font-family:Georgia,serif}
.kkr-review p{font-size:14px;color:#2d3436;line-height:1.7;margin-bottom:12px;padding-left:8px}
.kkr-review .reviewer{display:flex;align-items:center;gap:10px;font-size:13px;color:#636e72}
.kkr-review .stars{color:#f39c12;font-size:14px}

/* FAQ */
.kkr-faq{max-width:800px;margin:0 auto}
.kkr-faq-item{background:#fff;margin-bottom:10px;border-radius:8px;overflow:hidden;box-shadow:0 1px 4px rgba(0,0,0,.06)}
.kkr-faq-q{padding:16px 20px;font-size:15px;font-weight:600;color:#1a1e2e;cursor:pointer;display:flex;justify-content:space-between;align-items:center;transition:background .3s}
.kkr-faq-q:hover{background:#ffeaa7}
.kkr-faq-q::after{content:'+';font-size:20px;color:#c0392b;transition:transform .3s}
.kkr-faq-item.open .kkr-faq-q::after{transform:rotate(45deg)}
.kkr-faq-a{padding:0 20px;max-height:0;overflow:hidden;transition:all .4s;font-size:14px;color:#636e72;line-height:1.7}
.kkr-faq-item.open .kkr-faq-a{padding:0 20px 16px;max-height:300px}

/* Contact */
.kkr-contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:30px}
.kkr-contact-info{background:#1a1e2e;color:#fff;padding:32px;border-radius:10px}
.kkr-contact-info h3{font-size:20px;margin-bottom:16px;color:#f39c12}
.kkr-contact-info li{list-style:none;padding:8px 0;font-size:14px;border-bottom:1px solid rgba(255,255,255,.1)}
.kkr-contact-qr{display:flex;gap:20px;justify-content:center;align-items:center}
.kkr-contact-qr div{text-align:center}
.kkr-contact-qr img{width:140px;height:140px;border-radius:8px;margin-bottom:8px}
.kkr-contact-qr p{font-size:13px;color:#636e72}

/* Social Share */
.kkr-share{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}
.kkr-share a{display:flex;align-items:center;gap:6px;padding:10px 20px;border-radius:25px;color:#fff;font-size:14px;transition:all .3s}
.kkr-share a:hover{transform:translateY(-2px);color:#fff}
.kkr-share .wx{background:#07c160}
.kkr-share .wb{background:#e6162d}
.kkr-share .dy{background:#000}
.kkr-share .bl{background:#00a1d6}

/* Footer */
.kkr-footer{background:#1a1e2e;color:#b2bec3;padding:40px 20px 20px}
.kkr-footer-inner{max-width:1200px;margin:0 auto;display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:30px}
.kkr-footer h4{color:#fff;font-size:16px;margin-bottom:14px}
.kkr-footer p,.kkr-footer li{font-size:13px;line-height:1.8}
.kkr-footer ul{list-style:none}
.kkr-footer a{color:#b2bec3}
.kkr-footer a:hover{color:#c0392b}
.kkr-footer-logo{display:flex;align-items:center;gap:8px;margin-bottom:12px}
.kkr-footer-logo img{height:36px}
.kkr-footer-logo span{color:#fff;font-size:18px;font-weight:700}
.kkr-footer-bottom{max-width:1200px;margin:20px auto 0;padding-top:16px;border-top:1px solid rgba(255,255,255,.1);display:flex;justify-content:space-between;font-size:12px;flex-wrap:wrap;gap:10px}

/* Breadcrumb */
.kkr-breadcrumb{background:#f0efeb;padding:12px 20px;font-size:13px;color:#636e72}
.kkr-breadcrumb a{color:#c0392b}
.kkr-breadcrumb span{margin:0 6px;color:#b2bec3}

/* Page Header */
.kkr-page-hero{background:#1a1e2e;padding:50px 20px;text-align:center;color:#fff}
.kkr-page-hero h1{font-size:34px;margin-bottom:10px}
.kkr-page-hero h1 em{font-style:normal;color:#c0392b}
.kkr-page-hero p{color:#b2bec3;font-size:15px}

/* Mobile */
@media(max-width:768px){
    .kkr-header-inner{height:56px}
    .kkr-logo span{font-size:18px}
    .kkr-nav{display:none;position:absolute;top:56px;left:0;right:0;background:#1a1e2e;flex-direction:column;padding:10px 0;box-shadow:0 4px 12px rgba(0,0,0,.3)}
    .kkr-nav.open{display:flex}
    .kkr-nav a{padding:12px 20px;border-bottom:none}
    .kkr-hamburger{display:flex}
    .kkr-search{display:none}
    .kkr-hero{height:360px}
    .kkr-hero h1{font-size:26px}
    .kkr-hero p{font-size:14px}
    .kkr-section{padding:36px 16px}
    .kkr-section-head h2{font-size:22px}
    .kkr-vgrid{grid-template-columns:repeat(2,1fr);gap:12px}
    .kkr-ai-grid{grid-template-columns:1fr}
    .kkr-expert-grid{grid-template-columns:repeat(2,1fr);gap:14px}
    .kkr-steps{grid-template-columns:repeat(2,1fr)}
    .kkr-review-grid{grid-template-columns:1fr}
    .kkr-contact-grid{grid-template-columns:1fr}
    .kkr-footer-inner{grid-template-columns:1fr 1fr}
    .kkr-page-hero{padding:30px 16px}
    .kkr-page-hero h1{font-size:24px}
}
@media(max-width:480px){
    .kkr-vgrid{grid-template-columns:1fr}
    .kkr-expert-grid{grid-template-columns:1fr}
    .kkr-steps{grid-template-columns:1fr}
    .kkr-footer-inner{grid-template-columns:1fr}
}