/* ============================================
   小小绘 - 原创样式表
   配色方案：蜜桃粉 #FF6B8A / 暖珊瑚 #FF8FA3 / 深紫 #2D1B4E / 浅紫灰 #F5F0FF / 金色 #FFD700
   ============================================ */

/* === Reset & Base === */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;font-size:16px}
body{font-family:'PingFang SC','Microsoft YaHei','Helvetica Neue',Arial,sans-serif;color:#333;background:#FDFBFE;line-height:1.7;overflow-x:hidden}
a{text-decoration:none;color:inherit;transition:color .3s}
a:hover{color:#FF6B8A}
img{max-width:100%;height:auto;display:block}
ul,ol{list-style:none}
h1,h2,h3,h4,h5,h6{font-weight:700;line-height:1.3;color:#2D1B4E}

/* === Container === */
.container{max-width:1200px;margin:0 auto;padding:0 20px}

/* === Header === */
.site-header{background:linear-gradient(135deg,#2D1B4E 0%,#4A2D7A 100%);position:fixed;top:0;left:0;width:100%;z-index:1000;box-shadow:0 2px 20px rgba(45,27,78,.3)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:68px;max-width:1200px;margin:0 auto;padding:0 20px}
.logo-wrap{display:flex;align-items:center;gap:10px}
.logo-wrap img{height:42px;width:auto;border-radius:8px}
.logo-wrap .brand-name{font-size:22px;font-weight:800;color:#fff;letter-spacing:1px}
.logo-wrap .brand-name span{color:#FF6B8A}

/* === Navigation === */
.main-nav{display:flex;align-items:center;gap:28px}
.main-nav a{color:rgba(255,255,255,.85);font-size:15px;font-weight:500;padding:6px 0;position:relative;transition:all .3s}
.main-nav a::after{content:'';position:absolute;bottom:0;left:0;width:0;height:2px;background:#FF6B8A;transition:width .3s}
.main-nav a:hover,.main-nav a.active{color:#fff}
.main-nav a:hover::after,.main-nav a.active::after{width:100%}

/* === Hamburger === */
.hamburger-btn{display:none;flex-direction:column;gap:5px;cursor:pointer;padding:8px;background:none;border:none}
.hamburger-btn span{display:block;width:24px;height:2px;background:#fff;transition:all .3s;border-radius:2px}
.mobile-menu{display:none;position:fixed;top:68px;left:0;width:100%;background:#2D1B4E;padding:20px;z-index:999;transform:translateY(-100%);transition:transform .3s}
.mobile-menu.active{transform:translateY(0)}
.mobile-menu a{display:block;color:#fff;padding:12px 20px;font-size:16px;border-bottom:1px solid rgba(255,255,255,.1)}

/* === Search Bar === */
.search-bar{background:linear-gradient(135deg,#4A2D7A,#2D1B4E);padding:12px 0}
.search-wrap{max-width:600px;margin:0 auto;position:relative}
.search-wrap input{width:100%;padding:12px 50px 12px 20px;border-radius:30px;border:2px solid rgba(255,107,138,.4);background:rgba(255,255,255,.1);color:#fff;font-size:15px;outline:none;transition:all .3s}
.search-wrap input::placeholder{color:rgba(255,255,255,.5)}
.search-wrap input:focus{border-color:#FF6B8A;background:rgba(255,255,255,.15)}
.search-wrap .search-btn{position:absolute;right:6px;top:50%;transform:translateY(-50%);background:#FF6B8A;border:none;color:#fff;width:38px;height:38px;border-radius:50%;cursor:pointer;font-size:16px;transition:background .3s}
.search-wrap .search-btn:hover{background:#FF8FA3}
.search-tip{display:none;position:absolute;top:100%;left:0;right:0;background:#fff;border-radius:12px;box-shadow:0 8px 30px rgba(0,0,0,.15);padding:16px;margin-top:8px;z-index:100}
.search-tip.active{display:block}
.search-tip p{color:#666;font-size:14px}
.search-tip .hot-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:10px}
.search-tip .hot-tags a{background:#F5F0FF;color:#4A2D7A;padding:4px 14px;border-radius:20px;font-size:13px;transition:all .3s}
.search-tip .hot-tags a:hover{background:#FF6B8A;color:#fff}

/* === Hero Banner === */
.hero-section{position:relative;height:520px;overflow:hidden;margin-top:68px}
.hero-section .hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;filter:brightness(.55)}
.hero-section .hero-overlay{position:absolute;inset:0;background:linear-gradient(180deg,rgba(45,27,78,.4) 0%,rgba(45,27,78,.85) 100%)}
.hero-content{position:relative;z-index:2;height:100%;display:flex;flex-direction:column;justify-content:center;align-items:center;text-align:center;padding:0 20px}
.hero-content h1{font-size:48px;color:#fff;margin-bottom:16px;text-shadow:0 2px 20px rgba(0,0,0,.3)}
.hero-content h1 span{color:#FF6B8A}
.hero-content .hero-desc{font-size:18px;color:rgba(255,255,255,.9);max-width:700px;margin-bottom:28px;line-height:1.8}
.hero-content .hero-tags{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin-bottom:24px}
.hero-content .hero-tags span{background:rgba(255,107,138,.25);color:#fff;padding:6px 18px;border-radius:20px;font-size:14px;backdrop-filter:blur(4px);border:1px solid rgba(255,107,138,.3)}
.hero-content .hero-btns{display:flex;gap:16px}
.btn-primary{background:linear-gradient(135deg,#FF6B8A,#FF8FA3);color:#fff;padding:14px 36px;border-radius:30px;font-size:16px;font-weight:600;border:none;cursor:pointer;transition:all .3s;box-shadow:0 4px 20px rgba(255,107,138,.4)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 8px 30px rgba(255,107,138,.5)}
.btn-outline{background:transparent;color:#fff;padding:14px 36px;border-radius:30px;font-size:16px;font-weight:600;border:2px solid rgba(255,255,255,.5);cursor:pointer;transition:all .3s}
.btn-outline:hover{border-color:#FF6B8A;color:#FF6B8A}

/* === Section Common === */
.section{padding:70px 0}
.section-alt{background:#F5F0FF}
.section-dark{background:linear-gradient(135deg,#2D1B4E,#1A0F30);color:#fff}
.section-dark h2,.section-dark h3,.section-dark h4{color:#fff}
.section-title{text-align:center;margin-bottom:50px}
.section-title h2{font-size:34px;margin-bottom:12px;position:relative;display:inline-block}
.section-title h2::after{content:'';display:block;width:60px;height:3px;background:linear-gradient(90deg,#FF6B8A,#FFD700);margin:12px auto 0;border-radius:2px}
.section-title p{color:#777;font-size:16px;max-width:600px;margin:0 auto}
.section-dark .section-title p{color:rgba(255,255,255,.7)}

/* === Video Card Grid === */
.video-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.video-card{background:#fff;border-radius:16px;overflow:hidden;box-shadow:0 4px 20px rgba(45,27,78,.08);transition:all .4s;position:relative}
.video-card:hover{transform:translateY(-6px);box-shadow:0 12px 40px rgba(255,107,138,.15)}
.video-card .thumb{position:relative;padding-top:56.25%;overflow:hidden;background:#2D1B4E}
.video-card .thumb img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .5s}
.video-card:hover .thumb img{transform:scale(1.08)}
.video-card .play-btn{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%) scale(0);width:60px;height:60px;background:rgba(255,107,138,.9);border-radius:50%;display:flex;align-items:center;justify-content:center;transition:all .3s;opacity:0}
.video-card .play-btn::after{content:'';border-style:solid;border-width:10px 0 10px 18px;border-color:transparent transparent transparent #fff;margin-left:3px}
.video-card:hover .play-btn{transform:translate(-50%,-50%) scale(1);opacity:1}
.video-card .duration{position:absolute;bottom:8px;right:8px;background:rgba(0,0,0,.75);color:#fff;padding:2px 8px;border-radius:4px;font-size:12px}
.video-card .card-body{padding:16px}
.video-card .card-body h3{font-size:16px;margin-bottom:8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;line-height:1.4}
.video-card .card-meta{display:flex;align-items:center;justify-content:space-between;color:#999;font-size:13px}
.video-card .card-meta .views{display:flex;align-items:center;gap:4px}
.video-card .card-tags{display:flex;flex-wrap:wrap;gap:6px;margin-top:8px}
.video-card .card-tags span{background:#F5F0FF;color:#4A2D7A;padding:2px 10px;border-radius:12px;font-size:12px}

/* === Short Video Section (TikTok Style) === */
.short-video-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.short-card{position:relative;border-radius:14px;overflow:hidden;padding-top:160%;background:#1A0F30}
.short-card img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .5s}
.short-card:hover img{transform:scale(1.05)}
.short-card .short-overlay{position:absolute;inset:0;background:linear-gradient(180deg,transparent 40%,rgba(0,0,0,.8) 100%);z-index:1}
.short-card .short-info{position:absolute;bottom:0;left:0;right:0;padding:16px;z-index:2;color:#fff}
.short-card .short-info h4{font-size:14px;margin-bottom:6px}
.short-card .short-info .short-stats{display:flex;gap:12px;font-size:12px;color:rgba(255,255,255,.8)}
.short-card .play-btn{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%) scale(0);width:50px;height:50px;background:rgba(255,107,138,.85);border-radius:50%;display:flex;align-items:center;justify-content:center;z-index:3;transition:all .3s;opacity:0}
.short-card .play-btn::after{content:'';border-style:solid;border-width:8px 0 8px 14px;border-color:transparent transparent transparent #fff;margin-left:2px}
.short-card:hover .play-btn{transform:translate(-50%,-50%) scale(1);opacity:1}

/* === AI Section === */
.ai-features{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.ai-card{background:rgba(255,255,255,.06);border:1px solid rgba(255,107,138,.2);border-radius:16px;padding:32px 24px;text-align:center;transition:all .4s}
.ai-card:hover{background:rgba(255,107,138,.1);transform:translateY(-4px);border-color:rgba(255,107,138,.5)}
.ai-card .ai-icon{width:64px;height:64px;background:linear-gradient(135deg,#FF6B8A,#FFD700);border-radius:16px;display:flex;align-items:center;justify-content:center;margin:0 auto 20px;font-size:28px}
.ai-card h4{font-size:18px;margin-bottom:10px}
.ai-card p{color:rgba(255,255,255,.7);font-size:14px;line-height:1.7}

/* === Community Section === */
.community-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.community-card{background:#fff;border-radius:16px;overflow:hidden;display:flex;box-shadow:0 4px 20px rgba(45,27,78,.08);transition:all .4s}
.community-card:hover{transform:translateY(-4px);box-shadow:0 12px 30px rgba(255,107,138,.12)}
.community-card .comm-img{width:200px;min-height:180px;flex-shrink:0;overflow:hidden}
.community-card .comm-img img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.community-card:hover .comm-img img{transform:scale(1.05)}
.community-card .comm-body{padding:24px;flex:1;display:flex;flex-direction:column;justify-content:center}
.community-card .comm-body h4{font-size:18px;margin-bottom:8px;color:#2D1B4E}
.community-card .comm-body p{color:#666;font-size:14px;line-height:1.7;margin-bottom:12px}
.community-card .comm-body .comm-stats{display:flex;gap:16px;font-size:13px;color:#999}

/* === Expert Section === */
.expert-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.expert-card{background:#fff;border-radius:16px;padding:28px 20px;text-align:center;box-shadow:0 4px 20px rgba(45,27,78,.08);transition:all .4s}
.expert-card:hover{transform:translateY(-6px);box-shadow:0 12px 30px rgba(255,107,138,.15)}
.expert-card .expert-avatar{width:90px;height:90px;border-radius:50%;margin:0 auto 16px;overflow:hidden;border:3px solid #FF6B8A}
.expert-card .expert-avatar img{width:100%;height:100%;object-fit:cover}
.expert-card h4{font-size:17px;margin-bottom:4px;color:#2D1B4E}
.expert-card .expert-role{color:#FF6B8A;font-size:13px;margin-bottom:10px}
.expert-card p{color:#777;font-size:13px;line-height:1.6;margin-bottom:14px}
.expert-card .expert-btns{display:flex;gap:8px;justify-content:center}
.expert-card .expert-btns a{padding:6px 16px;border-radius:20px;font-size:12px;font-weight:600;transition:all .3s}
.expert-card .expert-btns .btn-sm-primary{background:#FF6B8A;color:#fff}
.expert-card .expert-btns .btn-sm-outline{border:1px solid #FF6B8A;color:#FF6B8A}
.expert-card .expert-btns a:hover{opacity:.85}

/* === Brand Wall === */
.brand-wall{display:flex;flex-wrap:wrap;justify-content:center;gap:30px;padding:20px 0}
.brand-wall .brand-item{width:140px;height:70px;background:#fff;border-radius:12px;display:flex;align-items:center;justify-content:center;box-shadow:0 2px 12px rgba(0,0,0,.06);padding:12px;transition:all .3s}
.brand-wall .brand-item:hover{box-shadow:0 6px 20px rgba(255,107,138,.15);transform:translateY(-2px)}
.brand-wall .brand-item span{font-size:14px;font-weight:700;color:#4A2D7A}

/* === How-To Steps === */
.steps-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-top:30px}
.step-card{text-align:center;padding:24px 16px}
.step-card .step-num{width:50px;height:50px;background:linear-gradient(135deg,#FF6B8A,#FF8FA3);color:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:22px;font-weight:800;margin:0 auto 16px}
.step-card h4{font-size:16px;margin-bottom:8px;color:#2D1B4E}
.step-card p{color:#777;font-size:14px}

/* === FAQ Section === */
.faq-list{max-width:800px;margin:0 auto}
.faq-item{background:#fff;border-radius:12px;margin-bottom:12px;box-shadow:0 2px 12px rgba(45,27,78,.06);overflow:hidden}
.faq-item .faq-q{padding:18px 24px;cursor:pointer;display:flex;justify-content:space-between;align-items:center;font-weight:600;font-size:16px;color:#2D1B4E;transition:background .3s}
.faq-item .faq-q:hover{background:#F5F0FF}
.faq-item .faq-q .faq-arrow{transition:transform .3s;color:#FF6B8A;font-size:18px}
.faq-item.active .faq-q .faq-arrow{transform:rotate(180deg)}
.faq-item .faq-a{max-height:0;overflow:hidden;transition:max-height .4s ease;padding:0 24px}
.faq-item.active .faq-a{max-height:300px;padding:0 24px 18px}
.faq-item .faq-a p{color:#666;font-size:14px;line-height:1.8}

/* === Reviews Section === */
.review-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.review-card{background:#fff;border-radius:16px;padding:28px;box-shadow:0 4px 20px rgba(45,27,78,.08);transition:all .3s}
.review-card:hover{box-shadow:0 8px 30px rgba(255,107,138,.12)}
.review-card .review-header{display:flex;align-items:center;gap:14px;margin-bottom:14px}
.review-card .review-avatar{width:48px;height:48px;border-radius:50%;background:linear-gradient(135deg,#FF6B8A,#FFD700);display:flex;align-items:center;justify-content:center;color:#fff;font-size:18px;font-weight:700}
.review-card .review-name{font-weight:600;color:#2D1B4E}
.review-card .review-date{font-size:12px;color:#999}
.review-card .review-stars{color:#FFD700;font-size:14px;margin-bottom:10px}
.review-card .review-text{color:#555;font-size:14px;line-height:1.8}

/* === Contact Section === */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:start}
.contact-info{background:#fff;border-radius:16px;padding:32px;box-shadow:0 4px 20px rgba(45,27,78,.08)}
.contact-info h3{font-size:22px;margin-bottom:20px;color:#2D1B4E}
.contact-info .info-item{display:flex;align-items:flex-start;gap:14px;margin-bottom:18px}
.contact-info .info-item .info-icon{width:40px;height:40px;background:#F5F0FF;border-radius:10px;display:flex;align-items:center;justify-content:center;flex-shrink:0;color:#FF6B8A;font-size:18px}
.contact-info .info-item .info-text h5{font-size:15px;color:#2D1B4E;margin-bottom:2px}
.contact-info .info-item .info-text p{color:#777;font-size:14px}
.contact-qr{display:flex;gap:24px;justify-content:center}
.contact-qr .qr-item{text-align:center}
.contact-qr .qr-item img{width:140px;height:140px;border-radius:12px;margin-bottom:8px;border:2px solid #F5F0FF}
.contact-qr .qr-item p{font-size:13px;color:#777}

/* === Share Buttons === */
.share-bar{display:flex;gap:12px;justify-content:center;padding:20px 0}
.share-bar a{width:44px;height:44px;border-radius:50%;display:flex;align-items:center;justify-content:center;color:#fff;font-size:18px;transition:all .3s}
.share-bar a:hover{transform:translateY(-3px)}
.share-bar .share-wechat{background:#07C160}
.share-bar .share-weibo{background:#E6162D}
.share-bar .share-douyin{background:#000}
.share-bar .share-bilibili{background:#00A1D6}

/* === Footer === */
.site-footer{background:#1A0F30;color:rgba(255,255,255,.7);padding:50px 0 0}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;margin-bottom:40px}
.footer-col h4{color:#fff;font-size:17px;margin-bottom:18px;position:relative;padding-bottom:10px}
.footer-col h4::after{content:'';position:absolute;bottom:0;left:0;width:30px;height:2px;background:#FF6B8A}
.footer-col p{font-size:14px;line-height:1.8;margin-bottom:12px}
.footer-col a{display:block;color:rgba(255,255,255,.6);font-size:14px;padding:4px 0;transition:color .3s}
.footer-col a:hover{color:#FF6B8A}
.footer-col .footer-logo{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-col .footer-logo img{height:36px;border-radius:6px}
.footer-col .footer-logo span{font-size:20px;font-weight:800;color:#fff}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding:20px 0;text-align:center;font-size:13px}
.footer-bottom .update-time{margin-top:6px;color:rgba(255,255,255,.5)}

/* === MCP Service === */
.mcp-service{background:#F5F0FF;border-radius:12px;padding:20px;margin:30px 0;text-align:center}
.mcp-service h5{color:#2D1B4E;margin-bottom:8px}
.mcp-service p{color:#777;font-size:13px}

/* === Back to Top === */
.back-to-top{position:fixed;bottom:30px;right:30px;width:48px;height:48px;background:linear-gradient(135deg,#FF6B8A,#FF8FA3);color:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:20px;cursor:pointer;opacity:0;visibility:hidden;transition:all .3s;box-shadow:0 4px 16px rgba(255,107,138,.4);z-index:999;border:none}
.back-to-top.visible{opacity:1;visibility:visible}
.back-to-top:hover{transform:translateY(-3px)}

/* === Lazy Load === */
.lazy-img{opacity:0;transition:opacity .6s}
.lazy-img.loaded{opacity:1}

/* === Animate === */
.animate-in{opacity:0;transform:translateY(30px);transition:all .6s ease}
.animate-in.visible{opacity:1;transform:translateY(0)}

/* === Breadcrumb === */
.breadcrumb{padding:14px 0;font-size:14px;color:#999}
.breadcrumb a{color:#FF6B8A}
.breadcrumb span{margin:0 8px;color:#ccc}

/* === Inner Page Hero === */
.inner-hero{background:linear-gradient(135deg,#2D1B4E,#4A2D7A);padding:80px 0 40px;margin-top:68px;text-align:center}
.inner-hero h1{color:#fff;font-size:36px;margin-bottom:10px}
.inner-hero p{color:rgba(255,255,255,.7);font-size:16px}

/* === Responsive === */
@media(max-width:1024px){
    .video-grid{grid-template-columns:repeat(2,1fr)}
    .short-video-grid{grid-template-columns:repeat(3,1fr)}
    .ai-features{grid-template-columns:repeat(2,1fr)}
    .expert-grid{grid-template-columns:repeat(2,1fr)}
    .footer-grid{grid-template-columns:repeat(2,1fr)}
    .steps-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:768px){
    .main-nav{display:none}
    .hamburger-btn{display:flex}
    .mobile-menu{display:block}
    .hero-section{height:420px}
    .hero-content h1{font-size:30px}
    .hero-content .hero-desc{font-size:15px}
    .hero-content .hero-btns{flex-direction:column;gap:10px}
    .video-grid{grid-template-columns:1fr}
    .short-video-grid{grid-template-columns:repeat(2,1fr)}
    .ai-features{grid-template-columns:1fr}
    .community-grid{grid-template-columns:1fr}
    .community-card{flex-direction:column}
    .community-card .comm-img{width:100%;min-height:160px}
    .expert-grid{grid-template-columns:1fr}
    .review-grid{grid-template-columns:1fr}
    .contact-grid{grid-template-columns:1fr}
    .footer-grid{grid-template-columns:1fr}
    .steps-grid{grid-template-columns:1fr}
    .section{padding:50px 0}
    .section-title h2{font-size:26px}
    .brand-wall .brand-item{width:110px;height:55px}
}
@media(max-width:480px){
    .short-video-grid{grid-template-columns:repeat(2,1fr)}
    .header-inner{height:56px}
    .logo-wrap img{height:32px}
    .logo-wrap .brand-name{font-size:18px}
    .hero-section{height:360px;margin-top:56px}
    .search-bar{padding:8px 0}
}