/* ===== 17C视频网 主样式 ===== */
:root {
  --primary: #00d4ff;
  --secondary: #7b2fff;
  --accent: #ff2d78;
  --bg-dark: #050a14;
  --bg-card: #0d1526;
  --bg-card2: #111c33;
  --text-main: #e8f0fe;
  --text-muted: #7a8aaa;
  --border: rgba(0,212,255,0.15);
  --gradient: linear-gradient(135deg, #00d4ff 0%, #7b2fff 100%);
  --gradient2: linear-gradient(135deg, #7b2fff 0%, #ff2d78 100%);
  --shadow: 0 8px 32px rgba(0,212,255,0.12);
  --radius: 12px;
  --transition: all 0.3s cubic-bezier(0.4,0,0.2,1);
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;font-size:16px}
body{background:var(--bg-dark);color:var(--text-main);font-family:'PingFang SC','Microsoft YaHei','Helvetica Neue',Arial,sans-serif;line-height:1.7;overflow-x:hidden}
a{color:var(--primary);text-decoration:none;transition:var(--transition)}
a:hover{color:#fff}
img{max-width:100%;height:auto;display:block}
ul{list-style:none}

/* ===== 滚动条 ===== */
::-webkit-scrollbar{width:6px}
::-webkit-scrollbar-track{background:#0a0f1e}
::-webkit-scrollbar-thumb{background:var(--secondary);border-radius:3px}

/* ===== 导航 ===== */
.site-header{position:fixed;top:0;left:0;right:0;z-index:1000;background:rgba(5,10,20,0.92);backdrop-filter:blur(16px);border-bottom:1px solid var(--border);transition:var(--transition)}
.site-header.scrolled{background:rgba(5,10,20,0.98);box-shadow:0 4px 24px rgba(0,0,0,0.4)}
.nav-wrap{max-width:1280px;margin:0 auto;padding:0 24px;display:flex;align-items:center;height:64px;gap:32px}
.nav-logo{font-size:1.6rem;font-weight:900;background:var(--gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;letter-spacing:2px;white-space:nowrap}
.nav-menu{display:flex;gap:4px;align-items:center;flex:1}
.nav-menu a{padding:8px 14px;border-radius:8px;font-size:0.92rem;color:var(--text-muted);font-weight:500;transition:var(--transition)}
.nav-menu a:hover,.nav-menu a.active{color:var(--primary);background:rgba(0,212,255,0.08)}
.nav-actions{display:flex;align-items:center;gap:12px;margin-left:auto}
.btn-nav{padding:8px 20px;border-radius:20px;background:var(--gradient);color:#fff;font-size:0.88rem;font-weight:600;border:none;cursor:pointer;transition:var(--transition);white-space:nowrap}
.btn-nav:hover{opacity:0.85;transform:translateY(-1px)}
.nav-toggle{display:none;flex-direction:column;gap:5px;cursor:pointer;padding:4px}
.nav-toggle span{display:block;width:24px;height:2px;background:var(--primary);border-radius:2px;transition:var(--transition)}

/* ===== 搜索框 ===== */
.search-bar-wrap{background:rgba(13,21,38,0.95);border-bottom:1px solid var(--border);padding:10px 0;position:sticky;top:64px;z-index:999}
.search-bar-inner{max-width:1280px;margin:0 auto;padding:0 24px;display:flex;align-items:center;gap:12px}
.search-form{display:flex;align-items:center;flex:1;max-width:600px;background:var(--bg-card2);border:1px solid var(--border);border-radius:24px;padding:6px 16px;gap:8px;transition:var(--transition)}
.search-form:focus-within{border-color:var(--primary);box-shadow:0 0 0 3px rgba(0,212,255,0.1)}
.search-form input{flex:1;background:transparent;border:none;outline:none;color:var(--text-main);font-size:0.92rem}
.search-form input::placeholder{color:var(--text-muted)}
.search-form button{background:var(--gradient);border:none;color:#fff;padding:6px 16px;border-radius:16px;cursor:pointer;font-size:0.88rem;font-weight:600;transition:var(--transition)}
.search-form button:hover{opacity:0.85}
.search-tags{display:flex;gap:8px;flex-wrap:wrap}
.search-tag{padding:4px 12px;border-radius:12px;background:rgba(123,47,255,0.12);color:var(--primary);font-size:0.8rem;cursor:pointer;border:1px solid rgba(123,47,255,0.2);transition:var(--transition)}
.search-tag:hover{background:rgba(123,47,255,0.25)}

/* ===== 容器 ===== */
.container{max-width:1280px;margin:0 auto;padding:0 24px}
.section{padding:80px 0}
.section-sm{padding:48px 0}
.section-title{font-size:2rem;font-weight:800;text-align:center;margin-bottom:12px;background:var(--gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.section-sub{text-align:center;color:var(--text-muted);margin-bottom:48px;font-size:1rem;max-width:600px;margin-left:auto;margin-right:auto}
.section-tag{display:inline-block;padding:4px 14px;border-radius:20px;background:rgba(0,212,255,0.1);color:var(--primary);font-size:0.8rem;font-weight:600;letter-spacing:1px;margin-bottom:12px;border:1px solid rgba(0,212,255,0.2)}

/* ===== Hero Banner ===== */
.hero{min-height:100vh;display:flex;align-items:center;position:relative;overflow:hidden;padding-top:120px}
.hero-bg{position:absolute;inset:0;background:url('../images/hero_banner.jpg') center/cover no-repeat;opacity:0.18;z-index:0}
.hero-overlay{position:absolute;inset:0;background:radial-gradient(ellipse at 60% 50%, rgba(123,47,255,0.25) 0%, transparent 70%), radial-gradient(ellipse at 20% 80%, rgba(0,212,255,0.2) 0%, transparent 60%);z-index:1}
.hero-particles{position:absolute;inset:0;z-index:1;pointer-events:none}
.hero-content{position:relative;z-index:2;max-width:1280px;margin:0 auto;padding:0 24px;display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center}
.hero-badge{display:inline-flex;align-items:center;gap:8px;padding:6px 16px;border-radius:20px;background:rgba(0,212,255,0.08);border:1px solid rgba(0,212,255,0.2);color:var(--primary);font-size:0.82rem;font-weight:600;margin-bottom:20px;letter-spacing:1px}
.hero-badge::before{content:'';width:8px;height:8px;border-radius:50%;background:var(--primary);animation:pulse 2s infinite}
.hero-h1{font-size:3.2rem;font-weight:900;line-height:1.15;margin-bottom:20px;letter-spacing:-1px}
.hero-h1 .highlight{background:var(--gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.hero-desc{font-size:1.05rem;color:var(--text-muted);margin-bottom:36px;line-height:1.8}
.hero-btns{display:flex;gap:16px;flex-wrap:wrap}
.btn-primary{padding:14px 32px;border-radius:28px;background:var(--gradient);color:#fff;font-size:1rem;font-weight:700;border:none;cursor:pointer;transition:var(--transition);display:inline-flex;align-items:center;gap:8px}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 8px 24px rgba(0,212,255,0.35);color:#fff}
.btn-outline{padding:13px 32px;border-radius:28px;background:transparent;color:var(--primary);font-size:1rem;font-weight:700;border:2px solid var(--primary);cursor:pointer;transition:var(--transition);display:inline-flex;align-items:center;gap:8px}
.btn-outline:hover{background:rgba(0,212,255,0.1);transform:translateY(-2px);color:var(--primary)}
.hero-stats{display:flex;gap:32px;margin-top:40px}
.stat-item{text-align:center}
.stat-num{font-size:2rem;font-weight:900;background:var(--gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.stat-label{font-size:0.82rem;color:var(--text-muted);margin-top:4px}
.hero-visual{position:relative;display:flex;align-items:center;justify-content:center}
.hero-video-mock{width:100%;aspect-ratio:16/9;border-radius:16px;overflow:hidden;border:2px solid rgba(0,212,255,0.2);box-shadow:0 0 60px rgba(0,212,255,0.15),0 0 120px rgba(123,47,255,0.1);position:relative;cursor:pointer}
.hero-video-mock img{width:100%;height:100%;object-fit:cover;transition:transform 0.5s ease}
.hero-video-mock:hover img{transform:scale(1.04)}
.hero-play-btn{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:72px;height:72px;border-radius:50%;background:rgba(0,212,255,0.9);display:flex;align-items:center;justify-content:center;transition:var(--transition);box-shadow:0 0 30px rgba(0,212,255,0.5)}
.hero-play-btn:hover{transform:translate(-50%,-50%) scale(1.1);background:#fff}
.hero-play-btn svg{width:28px;height:28px;fill:var(--bg-dark);margin-left:4px}
.hero-float-tags{position:absolute;top:-16px;right:-16px;display:flex;flex-direction:column;gap:8px}
.float-tag{padding:6px 14px;border-radius:20px;font-size:0.78rem;font-weight:700;white-space:nowrap;animation:floatY 3s ease-in-out infinite}
.float-tag:nth-child(2){animation-delay:1s}
.float-tag:nth-child(3){animation-delay:2s}
.float-tag.blue{background:rgba(0,212,255,0.15);border:1px solid rgba(0,212,255,0.3);color:var(--primary)}
.float-tag.purple{background:rgba(123,47,255,0.15);border:1px solid rgba(123,47,255,0.3);color:#b47fff}
.float-tag.pink{background:rgba(255,45,120,0.15);border:1px solid rgba(255,45,120,0.3);color:#ff7ab0}

/* ===== 视频卡片 ===== */
.video-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.video-card{background:var(--bg-card);border-radius:var(--radius);overflow:hidden;border:1px solid var(--border);transition:var(--transition);cursor:pointer}
.video-card:hover{transform:translateY(-6px);border-color:rgba(0,212,255,0.4);box-shadow:var(--shadow)}
.video-thumb{position:relative;aspect-ratio:16/9;overflow:hidden}
.video-thumb img{width:100%;height:100%;object-fit:cover;transition:transform 0.4s ease;loading:lazy}
.video-card:hover .video-thumb img{transform:scale(1.06)}
.video-play-overlay{position:absolute;inset:0;background:rgba(0,0,0,0.3);display:flex;align-items:center;justify-content:center;opacity:0;transition:var(--transition)}
.video-card:hover .video-play-overlay{opacity:1}
.play-circle{width:52px;height:52px;border-radius:50%;background:rgba(0,212,255,0.9);display:flex;align-items:center;justify-content:center;transform:scale(0.8);transition:var(--transition)}
.video-card:hover .play-circle{transform:scale(1)}
.play-circle svg{width:22px;height:22px;fill:#fff;margin-left:3px}
.video-duration{position:absolute;bottom:8px;right:8px;background:rgba(0,0,0,0.75);color:#fff;font-size:0.75rem;padding:2px 8px;border-radius:4px;font-weight:600}
.video-info{padding:14px}
.video-title{font-size:0.9rem;font-weight:600;color:var(--text-main);margin-bottom:8px;line-height:1.4;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.video-meta{display:flex;align-items:center;justify-content:space-between;font-size:0.78rem;color:var(--text-muted)}
.video-stats{display:flex;gap:10px}
.video-stat{display:flex;align-items:center;gap:3px}
.video-cat{padding:2px 8px;border-radius:10px;font-size:0.72rem;font-weight:600}
.cat-life{background:rgba(0,212,255,0.1);color:var(--primary)}
.cat-creative{background:rgba(123,47,255,0.1);color:#b47fff}
.cat-food{background:rgba(255,165,0,0.1);color:#ffa500}
.cat-fitness{background:rgba(0,200,100,0.1);color:#00c864}
.cat-beauty{background:rgba(255,45,120,0.1);color:#ff2d78}
.cat-diy{background:rgba(255,200,0,0.1);color:#ffc800}

/* ===== 产品矩阵 ===== */
.products-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.product-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:28px;transition:var(--transition);position:relative;overflow:hidden}
.product-card::before{content:'';position:absolute;top:0;left:0;right:0;height:3px;background:var(--gradient);transform:scaleX(0);transform-origin:left;transition:transform 0.3s ease}
.product-card:hover{transform:translateY(-4px);border-color:rgba(0,212,255,0.3);box-shadow:var(--shadow)}
.product-card:hover::before{transform:scaleX(1)}
.product-icon{width:52px;height:52px;border-radius:12px;background:var(--gradient);display:flex;align-items:center;justify-content:center;margin-bottom:16px;font-size:1.4rem}
.product-name{font-size:1.1rem;font-weight:700;margin-bottom:8px;color:var(--text-main)}
.product-desc{font-size:0.88rem;color:var(--text-muted);margin-bottom:16px;line-height:1.6}
.product-features{display:flex;flex-wrap:wrap;gap:8px}
.feature-tag{padding:4px 10px;border-radius:10px;background:rgba(0,212,255,0.08);color:var(--primary);font-size:0.76rem;border:1px solid rgba(0,212,255,0.15)}

/* ===== 技术引擎 ===== */
.tech-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.tech-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:28px;text-align:center;transition:var(--transition)}
.tech-card:hover{border-color:var(--secondary);box-shadow:0 0 30px rgba(123,47,255,0.15);transform:translateY(-4px)}
.tech-icon{font-size:2.5rem;margin-bottom:16px;display:block}
.tech-name{font-size:1rem;font-weight:700;margin-bottom:8px;color:var(--text-main)}
.tech-desc{font-size:0.85rem;color:var(--text-muted);line-height:1.6}
.tech-bar{margin-top:16px;height:4px;background:rgba(255,255,255,0.08);border-radius:2px;overflow:hidden}
.tech-bar-fill{height:100%;border-radius:2px;background:var(--gradient);transition:width 1.5s ease}

/* ===== 解决方案 ===== */
.solutions-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.solution-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:28px;display:flex;gap:20px;align-items:flex-start;transition:var(--transition)}
.solution-card:hover{border-color:rgba(123,47,255,0.4);box-shadow:0 8px 32px rgba(123,47,255,0.1);transform:translateY(-3px)}
.solution-num{font-size:2.5rem;font-weight:900;background:var(--gradient2);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;line-height:1;min-width:48px}
.solution-title{font-size:1rem;font-weight:700;margin-bottom:8px;color:var(--text-main)}
.solution-desc{font-size:0.87rem;color:var(--text-muted);line-height:1.6}

/* ===== 价值流程 ===== */
.process-steps{display:flex;gap:0;align-items:flex-start;position:relative}
.process-steps::before{content:'';position:absolute;top:32px;left:32px;right:32px;height:2px;background:linear-gradient(90deg,var(--primary),var(--secondary),var(--accent));z-index:0}
.process-step{flex:1;text-align:center;position:relative;z-index:1;padding:0 12px}
.step-circle{width:64px;height:64px;border-radius:50%;background:var(--gradient);display:flex;align-items:center;justify-content:center;margin:0 auto 16px;font-size:1.4rem;font-weight:900;color:#fff;box-shadow:0 0 20px rgba(0,212,255,0.3);position:relative;z-index:1}
.step-title{font-size:0.95rem;font-weight:700;margin-bottom:8px;color:var(--text-main)}
.step-desc{font-size:0.82rem;color:var(--text-muted);line-height:1.5}

/* ===== 案例 ===== */
.cases-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.case-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:28px;transition:var(--transition);position:relative;overflow:hidden}
.case-card::after{content:'';position:absolute;bottom:0;left:0;right:0;height:3px;background:var(--gradient2)}
.case-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.case-client{font-size:0.82rem;color:var(--primary);font-weight:600;margin-bottom:8px;letter-spacing:1px}
.case-desc{font-size:0.9rem;color:var(--text-muted);line-height:1.6}
.case-icon{font-size:2rem;margin-bottom:12px}

/* ===== 动态新闻 ===== */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.news-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;transition:var(--transition)}
.news-card:hover{transform:translateY(-4px);border-color:rgba(0,212,255,0.3);box-shadow:var(--shadow)}
.news-img{aspect-ratio:16/9;overflow:hidden}
.news-img img{width:100%;height:100%;object-fit:cover;transition:transform 0.4s ease}
.news-card:hover .news-img img{transform:scale(1.05)}
.news-body{padding:18px}
.news-tag{display:inline-block;padding:3px 10px;border-radius:10px;background:rgba(0,212,255,0.1);color:var(--primary);font-size:0.75rem;font-weight:600;margin-bottom:10px}
.news-title{font-size:0.95rem;font-weight:700;color:var(--text-main);margin-bottom:8px;line-height:1.4;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-date{font-size:0.78rem;color:var(--text-muted)}

/* ===== 用户评价 ===== */
.reviews-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.review-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:22px;transition:var(--transition)}
.review-card:hover{border-color:rgba(123,47,255,0.3);transform:translateY(-3px)}
.review-stars{color:#ffc800;font-size:0.9rem;margin-bottom:10px;letter-spacing:2px}
.review-text{font-size:0.87rem;color:var(--text-muted);line-height:1.6;margin-bottom:14px}
.review-user{display:flex;align-items:center;gap:10px}
.review-avatar{width:36px;height:36px;border-radius:50%;background:var(--gradient);display:flex;align-items:center;justify-content:center;font-size:0.9rem;font-weight:700;color:#fff}
.review-name{font-size:0.88rem;font-weight:600;color:var(--text-main)}
.review-role{font-size:0.75rem;color:var(--text-muted)}

/* ===== FAQ ===== */
.faq-list{max-width:800px;margin:0 auto;display:flex;flex-direction:column;gap:12px}
.faq-item{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;transition:var(--transition)}
.faq-item.open{border-color:rgba(0,212,255,0.3)}
.faq-question{padding:18px 22px;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:12px;font-weight:600;font-size:0.95rem;color:var(--text-main);user-select:none}
.faq-question:hover{color:var(--primary)}
.faq-arrow{width:20px;height:20px;border-radius:50%;background:rgba(0,212,255,0.1);display:flex;align-items:center;justify-content:center;flex-shrink:0;transition:transform 0.3s ease;color:var(--primary);font-size:0.8rem}
.faq-item.open .faq-arrow{transform:rotate(180deg);background:rgba(0,212,255,0.2)}
.faq-answer{max-height:0;overflow:hidden;transition:max-height 0.4s ease,padding 0.3s ease;padding:0 22px;font-size:0.88rem;color:var(--text-muted);line-height:1.7}
.faq-item.open .faq-answer{max-height:300px;padding:0 22px 18px}

/* ===== 联系我们 ===== */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:start}
.contact-info{display:flex;flex-direction:column;gap:20px}
.contact-item{display:flex;align-items:flex-start;gap:16px;padding:20px;background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);transition:var(--transition)}
.contact-item:hover{border-color:rgba(0,212,255,0.3)}
.contact-icon{width:44px;height:44px;border-radius:10px;background:var(--gradient);display:flex;align-items:center;justify-content:center;font-size:1.2rem;flex-shrink:0}
.contact-label{font-size:0.8rem;color:var(--text-muted);margin-bottom:4px}
.contact-value{font-size:0.95rem;font-weight:600;color:var(--text-main)}
.contact-form{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:32px}
.form-title{font-size:1.2rem;font-weight:700;margin-bottom:24px;color:var(--text-main)}
.form-group{margin-bottom:16px}
.form-group label{display:block;font-size:0.85rem;color:var(--text-muted);margin-bottom:6px}
.form-group input,.form-group textarea,.form-group select{width:100%;background:var(--bg-dark);border:1px solid var(--border);border-radius:8px;padding:10px 14px;color:var(--text-main);font-size:0.9rem;outline:none;transition:var(--transition);font-family:inherit}
.form-group input:focus,.form-group textarea:focus,.form-group select:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(0,212,255,0.1)}
.form-group textarea{min-height:100px;resize:vertical}
.btn-submit{width:100%;padding:14px;border-radius:28px;background:var(--gradient);color:#fff;font-size:1rem;font-weight:700;border:none;cursor:pointer;transition:var(--transition)}
.btn-submit:hover{opacity:0.85;transform:translateY(-1px)}

/* ===== 合作伙伴 ===== */
.partners-row{display:flex;gap:24px;flex-wrap:wrap;justify-content:center;align-items:center}
.partner-item{padding:16px 28px;background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);font-size:0.9rem;font-weight:700;color:var(--text-muted);transition:var(--transition);letter-spacing:1px}
.partner-item:hover{color:var(--primary);border-color:rgba(0,212,255,0.3)}

/* ===== 页脚 ===== */
.site-footer{background:#030710;border-top:1px solid var(--border);padding:60px 0 24px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;margin-bottom:48px}
.footer-brand .nav-logo{font-size:1.4rem;margin-bottom:12px;display:block}
.footer-desc{font-size:0.85rem;color:var(--text-muted);line-height:1.7;margin-bottom:16px}
.footer-social{display:flex;gap:10px}
.social-btn{width:36px;height:36px;border-radius:8px;background:var(--bg-card);border:1px solid var(--border);display:flex;align-items:center;justify-content:center;font-size:0.9rem;color:var(--text-muted);transition:var(--transition);cursor:pointer}
.social-btn:hover{background:rgba(0,212,255,0.1);color:var(--primary);border-color:rgba(0,212,255,0.3)}
.footer-col h4{font-size:0.95rem;font-weight:700;color:var(--text-main);margin-bottom:16px}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:0.85rem;color:var(--text-muted);transition:var(--transition)}
.footer-links a:hover{color:var(--primary)}
.footer-bottom{border-top:1px solid var(--border);padding-top:24px;display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:12px}
.footer-copy{font-size:0.82rem;color:var(--text-muted)}
.footer-copy a{color:var(--text-muted)}
.footer-copy a:hover{color:var(--primary)}
.footer-icp{font-size:0.82rem;color:var(--text-muted)}
.footer-update{font-size:0.82rem;color:var(--text-muted)}

/* ===== 面包屑 ===== */
.breadcrumb{padding:16px 0;font-size:0.85rem;color:var(--text-muted)}
.breadcrumb a{color:var(--text-muted)}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb span{margin:0 8px;opacity:0.4}

/* ===== 内页Hero ===== */
.page-hero{padding:120px 0 60px;text-align:center;position:relative;overflow:hidden}
.page-hero::before{content:'';position:absolute;inset:0;background:radial-gradient(ellipse at 50% 0%, rgba(123,47,255,0.2) 0%, transparent 70%);pointer-events:none}
.page-hero h1{font-size:2.4rem;font-weight:900;margin-bottom:12px}
.page-hero p{font-size:1rem;color:var(--text-muted);max-width:560px;margin:0 auto}

/* ===== 动画 ===== */
@keyframes pulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:0.6;transform:scale(1.3)}}
@keyframes floatY{0%,100%{transform:translateY(0)}50%{transform:translateY(-8px)}}
@keyframes fadeInUp{from{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}
@keyframes gradientShift{0%{background-position:0% 50%}50%{background-position:100% 50%}100%{background-position:0% 50%}}
.animate-in{animation:fadeInUp 0.6s ease forwards}
.delay-1{animation-delay:0.1s}
.delay-2{animation-delay:0.2s}
.delay-3{animation-delay:0.3s}

/* ===== 分隔线 ===== */
.divider{height:1px;background:linear-gradient(90deg,transparent,var(--border),transparent);margin:0}

/* ===== 数字统计 ===== */
.stats-row{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.stats-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:28px;text-align:center;transition:var(--transition)}
.stats-card:hover{border-color:rgba(0,212,255,0.3);transform:translateY(-3px)}
.stats-num{font-size:2.4rem;font-weight:900;background:var(--gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;line-height:1.1}
.stats-unit{font-size:1.2rem;font-weight:700;background:var(--gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.stats-label{font-size:0.85rem;color:var(--text-muted);margin-top:8px}

/* ===== 响应式 ===== */
@media(max-width:1024px){
  .hero-content{grid-template-columns:1fr;gap:40px}
  .hero-visual{display:none}
  .hero-h1{font-size:2.4rem}
  .video-grid{grid-template-columns:repeat(2,1fr)}
  .products-grid{grid-template-columns:1fr}
  .tech-grid{grid-template-columns:repeat(2,1fr)}
  .reviews-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:768px){
  .section{padding:56px 0}
  .hero-h1{font-size:1.9rem}
  .section-title{font-size:1.6rem}
  .nav-menu{display:none;position:fixed;top:64px;left:0;right:0;background:rgba(5,10,20,0.98);flex-direction:column;padding:20px;gap:4px;border-bottom:1px solid var(--border)}
  .nav-menu.open{display:flex}
  .nav-toggle{display:flex}
  .video-grid{grid-template-columns:1fr 1fr}
  .solutions-grid{grid-template-columns:1fr}
  .cases-grid{grid-template-columns:1fr}
  .contact-grid{grid-template-columns:1fr}
  .process-steps{flex-direction:column;gap:24px}
  .process-steps::before{display:none}
  .stats-row{grid-template-columns:repeat(2,1fr)}
  .news-grid{grid-template-columns:1fr}
  .reviews-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;text-align:center}
  .search-tags{display:none}
  .hero-stats{gap:20px}
}
@media(max-width:480px){
  .video-grid{grid-template-columns:1fr}
  .tech-grid{grid-template-columns:1fr}
  .hero-btns{flex-direction:column}
  .btn-primary,.btn-outline{width:100%;justify-content:center}
}