/* ========================================
   短视频创作与算法优化 - 主样式表
   独特配色：深紫+珊瑚红+金色
   ======================================== */

/* CSS Reset & Base */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{font-size:16px;scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","WenQuanYi Micro Hei",sans-serif;color:#e8e0f0;background:#0d0a1a;line-height:1.8;overflow-x:hidden}
img{max-width:100%;height:auto;display:block}
a{color:#f0a050;text-decoration:none;transition:color .3s}
a:hover{color:#ff6b9d}
ul,ol{list-style:none}
h1,h2,h3,h4,h5,h6{line-height:1.3;font-weight:700}

/* Layout */
.container{max-width:1140px;margin:0 auto;padding:0 20px}
.section{padding:50px 0}
.section-alt{background:linear-gradient(135deg,#12091f 0%,#1a0e2e 100%)}

/* Header */
.site-header{background:linear-gradient(180deg,#0d0a1a 0%,rgba(13,10,26,.95) 100%);padding:12px 0;position:relative;z-index:100;border-bottom:1px solid rgba(240,160,80,.15)}
.header-inner{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:10px}
.logo-wrap{display:flex;align-items:center;gap:10px}
.logo-wrap img{height:40px;width:auto}
.logo-text{font-size:1.25rem;font-weight:800;background:linear-gradient(90deg,#f0a050,#ff6b9d);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}

/* Navigation */
.main-nav ul{display:flex;gap:6px;flex-wrap:wrap}
.main-nav a{display:inline-block;padding:8px 14px;border-radius:20px;font-size:.88rem;font-weight:600;color:#c8b8e0;transition:all .3s}
.main-nav a:hover,.main-nav a.active{background:linear-gradient(135deg,#f0a050,#ff6b9d);color:#fff}
.mobile-menu-btn{display:none;background:none;border:2px solid #f0a050;color:#f0a050;padding:6px 12px;border-radius:6px;font-size:1.2rem;cursor:pointer}

/* Hero Section */
.hero{position:relative;min-height:480px;display:flex;align-items:center;overflow:hidden}
.hero-bg{position:absolute;inset:0;z-index:0}
.hero-bg img{width:100%;height:100%;object-fit:cover;filter:brightness(.5)}
.hero-overlay{position:absolute;inset:0;background:linear-gradient(135deg,rgba(13,10,26,.85),rgba(120,30,80,.6));z-index:1}
.hero-content{position:relative;z-index:2;text-align:center;padding:60px 20px}
.hero h1{font-size:2.5rem;margin-bottom:16px;background:linear-gradient(90deg,#ffd700,#ff6b9d,#f0a050);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.hero p{font-size:1.15rem;color:#d0c0e8;max-width:700px;margin:0 auto 24px}
.hero-video-wrap{position:relative;max-width:720px;margin:0 auto;border-radius:16px;overflow:hidden;box-shadow:0 8px 40px rgba(255,107,157,.2)}
.hero-video-wrap video,.hero-video-wrap img{width:100%;display:block}
.play-overlay{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;background:rgba(0,0,0,.35);cursor:pointer;transition:background .3s}
.play-overlay:hover{background:rgba(0,0,0,.15)}
.play-btn{width:70px;height:70px;border-radius:50%;background:rgba(240,160,80,.9);display:flex;align-items:center;justify-content:center;transition:transform .3s}
.play-btn::after{content:"";border-left:22px solid #fff;border-top:14px solid transparent;border-bottom:14px solid transparent;margin-left:5px}
.play-overlay:hover .play-btn{transform:scale(1.15)}

/* CTA Button */
.cta-btn{display:inline-block;padding:14px 36px;border-radius:30px;font-size:1rem;font-weight:700;color:#fff;background:linear-gradient(135deg,#f0a050,#ff6b9d);box-shadow:0 4px 20px rgba(240,160,80,.35);transition:all .3s;border:none;cursor:pointer}
.cta-btn:hover{transform:translateY(-2px);box-shadow:0 6px 30px rgba(240,160,80,.5);color:#fff}
.cta-btn[rel="nofollow"]{text-transform:none}

/* Section Titles */
.section-title{text-align:center;margin-bottom:40px}
.section-title h2{font-size:1.8rem;color:#ffd700;margin-bottom:10px;position:relative;display:inline-block}
.section-title h2::after{content:"";display:block;width:60px;height:3px;background:linear-gradient(90deg,#f0a050,#ff6b9d);margin:10px auto 0;border-radius:2px}
.section-title p{color:#a090c0;font-size:.95rem}

/* Video Cards Grid */
.video-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:24px}
.video-card{background:linear-gradient(145deg,#1a0e2e,#150c24);border-radius:14px;overflow:hidden;transition:transform .3s,box-shadow .3s;border:1px solid rgba(240,160,80,.1)}
.video-card:hover{transform:translateY(-6px);box-shadow:0 12px 40px rgba(240,160,80,.15)}
.video-card-thumb{position:relative;overflow:hidden;aspect-ratio:16/9}
.video-card-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s}
.video-card:hover .video-card-thumb img{transform:scale(1.08)}
.video-card-thumb .play-icon{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:44px;height:44px;background:rgba(240,160,80,.85);border-radius:50%;display:flex;align-items:center;justify-content:center}
.video-card-thumb .play-icon::after{content:"";border-left:14px solid #fff;border-top:9px solid transparent;border-bottom:9px solid transparent;margin-left:3px}
.video-card-body{padding:16px}
.video-card-body h3{font-size:1.05rem;color:#f0d8a8;margin-bottom:8px}
.video-card-body p{font-size:.85rem;color:#a090b8;line-height:1.6}
.video-card-rating{display:flex;align-items:center;gap:4px;margin-top:8px;color:#ffd700;font-size:.9rem}

/* Creator Section */
.creator-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:28px}
.creator-card{text-align:center;background:linear-gradient(145deg,#1a0e2e,#12091f);border-radius:16px;padding:28px 20px;border:1px solid rgba(240,160,80,.08);transition:transform .3s}
.creator-card:hover{transform:translateY(-4px)}
.creator-card img{width:120px;height:120px;border-radius:50%;margin:0 auto 16px;object-fit:cover;border:3px solid #f0a050}
.creator-card h3{color:#f0d8a8;font-size:1.1rem;margin-bottom:6px}
.creator-card .role{color:#ff6b9d;font-size:.85rem;margin-bottom:10px}
.creator-card p{font-size:.85rem;color:#a090b8}

/* Case Studies */
.case-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:24px}
.case-card{border-radius:14px;overflow:hidden;background:#1a0e2e;border:1px solid rgba(240,160,80,.1)}
.case-card img{width:100%;aspect-ratio:16/9;object-fit:cover}
.case-card-body{padding:20px}
.case-card-body h3{color:#ffd700;margin-bottom:8px}
.case-card-body p{font-size:.88rem;color:#b0a0c8}

/* Ad Consultation */
.consult-section{background:linear-gradient(135deg,#2a1040,#1a0830);border-radius:20px;padding:40px;display:flex;align-items:center;gap:30px;flex-wrap:wrap;border:1px solid rgba(255,107,157,.15)}
.consult-section img{flex:1 1 300px;border-radius:14px;max-width:400px}
.consult-text{flex:1 1 300px}
.consult-text h2{color:#ffd700;font-size:1.6rem;margin-bottom:12px}
.consult-text p{color:#c8b8e0;margin-bottom:16px}

/* Reviews */
.review-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:20px}
.review-card{background:linear-gradient(145deg,#1a0e2e,#12091f);border-radius:14px;padding:24px;border:1px solid rgba(240,160,80,.08)}
.review-header{display:flex;align-items:center;gap:12px;margin-bottom:12px}
.review-avatar{width:48px;height:48px;border-radius:50%;background:linear-gradient(135deg,#f0a050,#ff6b9d);display:flex;align-items:center;justify-content:center;color:#fff;font-weight:700;font-size:1.1rem}
.review-meta h4{color:#f0d8a8;font-size:.95rem}
.review-meta span{color:#8878a0;font-size:.8rem}
.review-stars{color:#ffd700;margin-bottom:8px;font-size:.9rem}
.review-card p{font-size:.88rem;color:#b0a0c8;line-height:1.7}

/* FAQ */
.faq-list{max-width:800px;margin:0 auto}
.faq-item{border-bottom:1px solid rgba(240,160,80,.1);padding:20px 0}
.faq-question{font-size:1.05rem;color:#f0d8a8;font-weight:600;cursor:pointer;display:flex;justify-content:space-between;align-items:center}
.faq-question::after{content:"＋";color:#f0a050;font-size:1.2rem;transition:transform .3s}
.faq-item.open .faq-question::after{transform:rotate(45deg)}
.faq-answer{padding-top:12px;font-size:.9rem;color:#a090b8;line-height:1.8;display:none}
.faq-item.open .faq-answer{display:block}

/* About Section */
.about-content{display:flex;gap:30px;flex-wrap:wrap;align-items:flex-start}
.about-text{flex:1 1 400px}
.about-text h3{color:#ffd700;margin-bottom:12px;font-size:1.2rem}
.about-text p{margin-bottom:16px;font-size:.92rem;color:#b8a8d0;line-height:1.9}
.about-img{flex:1 1 300px;border-radius:14px;overflow:hidden}

/* Payment */
.payment-grid{display:flex;flex-wrap:wrap;gap:16px;justify-content:center;align-items:center}
.payment-grid img{height:50px;width:auto;border-radius:8px;background:#fff;padding:4px}

/* License */
.license-section{text-align:center}
.license-section img{max-width:200px;margin:0 auto 16px}
.license-section p{font-size:.88rem;color:#a090b8}

/* Support */
.support-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:20px}
.support-card{background:#1a0e2e;border-radius:12px;padding:24px;text-align:center;border:1px solid rgba(240,160,80,.08)}
.support-icon{font-size:2rem;margin-bottom:10px}
.support-card h4{color:#f0d8a8;margin-bottom:6px}
.support-card p{font-size:.85rem;color:#a090b8}

/* Responsible */
.responsible-section{background:linear-gradient(135deg,#0f0820,#1a0e2e);border-radius:16px;padding:30px;text-align:center;border:1px solid rgba(50,120,200,.2)}
.responsible-section img{width:80px;margin:0 auto 16px}
.responsible-section h3{color:#5090e0;margin-bottom:10px}
.responsible-section p{font-size:.88rem;color:#8898c0;max-width:600px;margin:0 auto}

/* Footer */
.site-footer{background:#08051a;padding:40px 0 20px;border-top:1px solid rgba(240,160,80,.1)}
.footer-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:30px;margin-bottom:30px}
.footer-col h4{color:#ffd700;font-size:.95rem;margin-bottom:14px;position:relative;padding-bottom:8px}
.footer-col h4::after{content:"";position:absolute;bottom:0;left:0;width:30px;height:2px;background:#f0a050}
.footer-col a{display:block;color:#8878a0;font-size:.85rem;padding:4px 0;transition:color .3s}
.footer-col a:hover{color:#f0a050}
.footer-col p{font-size:.85rem;color:#8878a0;line-height:1.7}
.footer-social{display:flex;gap:10px;margin-top:10px}
.footer-social img{width:32px;height:32px;border-radius:50%;transition:transform .3s}
.footer-social img:hover{transform:scale(1.15)}
.footer-bottom{text-align:center;padding-top:20px;border-top:1px solid rgba(240,160,80,.08);font-size:.8rem;color:#5a4a7a}
.footer-payments{display:flex;gap:10px;justify-content:center;margin:16px 0;flex-wrap:wrap}
.footer-payments img{height:30px;background:#fff;border-radius:4px;padding:2px}

/* Breadcrumb */
.breadcrumb{padding:12px 0;font-size:.82rem;color:#8878a0}
.breadcrumb a{color:#f0a050}
.breadcrumb span{margin:0 6px;color:#5a4a7a}

/* Inner Page */
.inner-hero{background:linear-gradient(135deg,#1a0e2e,#2a1040);padding:50px 0;text-align:center}
.inner-hero h1{font-size:2rem;color:#ffd700;margin-bottom:10px}
.inner-hero p{color:#a090c0;font-size:.95rem}
.content-area{padding:40px 0}
.content-area h2{color:#ffd700;font-size:1.4rem;margin:30px 0 14px}
.content-area h3{color:#f0d8a8;font-size:1.15rem;margin:24px 0 10px}
.content-area p{margin-bottom:16px;font-size:.92rem;color:#b8a8d0;line-height:1.9}
.content-area img{border-radius:12px;margin:20px 0}
.content-area ul,.content-area ol{padding-left:24px;margin-bottom:16px}
.content-area li{margin-bottom:8px;font-size:.9rem;color:#b0a0c0;list-style:disc}
.content-area ol li{list-style:decimal}
.content-gallery{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:16px;margin:24px 0}
.content-gallery img{border-radius:10px;aspect-ratio:16/10;object-fit:cover}

/* APP Download Page */
.app-hero{background:linear-gradient(135deg,#1a0830,#2a1050);padding:60px 0;text-align:center}
.app-hero h1{font-size:2.2rem;color:#ffd700;margin-bottom:14px}
.app-hero p{color:#c8b8e0;font-size:1.05rem;margin-bottom:24px}
.app-features{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:20px;margin:30px 0}
.app-feature-card{background:#1a0e2e;border-radius:14px;padding:24px;text-align:center;border:1px solid rgba(240,160,80,.08)}
.app-feature-card .icon{font-size:2.2rem;margin-bottom:12px}
.app-feature-card h3{color:#f0d8a8;margin-bottom:8px;font-size:1rem}
.app-feature-card p{font-size:.85rem;color:#a090b8}
.download-btns{display:flex;gap:16px;justify-content:center;flex-wrap:wrap;margin:30px 0}
.download-btn{display:inline-flex;align-items:center;gap:10px;padding:14px 28px;border-radius:12px;font-weight:700;font-size:.95rem;transition:all .3s}
.download-btn.android{background:linear-gradient(135deg,#34a853,#0f9d58);color:#fff}
.download-btn.ios{background:linear-gradient(135deg,#333,#000);color:#fff}
.download-btn:hover{transform:translateY(-2px);box-shadow:0 6px 20px rgba(0,0,0,.3);color:#fff}
.qr-section{text-align:center;margin:30px 0}
.qr-section img{width:160px;margin:0 auto}

/* Video Player */
.video-player-wrap{position:relative;max-width:800px;margin:0 auto;border-radius:14px;overflow:hidden;background:#000}
.video-player-wrap video{width:100%;display:block}

/* Animations */
@keyframes fadeInUp{from{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}
.fade-in{animation:fadeInUp .6s ease-out forwards}

/* Mobile Responsive */
@media(max-width:768px){
  .header-inner{flex-direction:column;gap:8px}
  .mobile-menu-btn{display:block}
  .main-nav{display:none;width:100%}
  .main-nav.open{display:block}
  .main-nav ul{flex-direction:column;gap:2px}
  .main-nav a{display:block;text-align:center;border-radius:8px}
  .hero h1{font-size:1.6rem}
  .hero p{font-size:.95rem}
  .hero-content{padding:40px 16px}
  .section{padding:30px 0}
  .section-title h2{font-size:1.4rem}
  .video-grid{grid-template-columns:repeat(2,1fr);gap:12px}
  .creator-grid{grid-template-columns:repeat(2,1fr);gap:14px}
  .case-grid{grid-template-columns:1fr}
  .review-grid{grid-template-columns:1fr}
  .consult-section{flex-direction:column;padding:24px}
  .about-content{flex-direction:column}
  .footer-grid{grid-template-columns:repeat(2,1fr);gap:20px}
  .container{padding:0 16px}
  .content-gallery{grid-template-columns:1fr}
  .app-features{grid-template-columns:1fr}
  .download-btns{flex-direction:column;align-items:center}
}
@media(max-width:480px){
  .video-grid{grid-template-columns:1fr}
  .creator-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .support-grid{grid-template-columns:1fr}
}

/* Print */
@media print{
  .site-header,.site-footer,.play-overlay{display:none}
  body{color:#000;background:#fff}
}