header{background-color:var(--card-bg);box-shadow:var(--box-shadow);padding:15px 0;position:sticky;top:0;z-index:1000}
.main-header .container{display:flex;align-items:center;justify-content:space-between}
.logo{display:flex;align-items:center;font-size:1.5rem;font-weight:bold;color:var(--primary-color);margin:0}
.logo img{width:32px;height:32px;margin-right:10px;border-radius:var(--border-radius)}
.nav-menu{display:flex;gap:20px}
.nav-item{color:var(--light-text);text-decoration:none;padding:8px 15px;border-radius:var(--border-radius);transition:var(--transition)}
.nav-item:hover,.nav-item.active{background-color:var(--primary-color);color:#fff}
.header-actions{display:flex;align-items:center;gap:15px}
.btn-help{background:none;border:none;color:var(--light-text);font-size:1.2rem;padding:.5rem;border-radius:50%;transition:var(--transition);cursor:pointer}
.btn-help:hover{background-color:rgba(0,0,0,.05)}
.hero-section{background:linear-gradient(135deg,var(--primary-color),#ff9966);color:#fff;padding:180px 0;text-align:center;margin-bottom:0;margin-left:calc(50% - 50vw);margin-right:calc(50% - 50vw);width:100vw}
.hero-title{font-size:2.5rem;margin-bottom:20px;font-weight:bold}
.hero-description{font-size:1.2rem;max-width:800px;margin:0 auto 30px}
.hero-cta{display:flex;justify-content:center;gap:20px;flex-wrap:wrap}
.hero-section .btn-primary{background-color:#fff;color:var(--primary-color)}
.hero-section .btn-primary:hover{background-color:#f0f0f0}
.hero-section .btn-secondary{background-color:rgba(255,255,255,.2);color:#fff;border:2px solid #fff}
.hero-section .btn-secondary:hover{background-color:rgba(255,255,255,.3)}
.feature-section{padding:80px 0;background:linear-gradient(135deg,var(--card-bg) 0%,var(--card-bg) 100%);position:relative;overflow:hidden}
.feature-section::before{content:'';position:absolute;top:0;left:0;width:100%;height:100%;background:radial-gradient(circle at top right,rgba(var(--primary-color-rgb),.05) 0%,transparent 50%);pointer-events:none}
.section-title{text-align:center;font-size:2.5rem;margin-bottom:20px;color:var(--secondary-color);position:relative;font-weight:700;letter-spacing:-.5px}
.section-subtitle{text-align:center;font-size:1.1rem;color:var(--light-text);max-width:700px;margin:0 auto 60px;opacity:.9}
.section-title::after{content:'';display:block;width:100px;height:4px;background:linear-gradient(90deg,var(--primary-color),var(--secondary-color));margin:20px auto 0;border-radius:2px}
.feature-grid{display:grid;grid-template-columns:1fr 1fr;gap:30px;margin-top:40px;max-width:1200px;margin-left:auto;margin-right:auto}
.feature-card{background:rgba(var(--card-bg-rgb),.92);backdrop-filter:blur(8px);border-radius:24px;padding:40px;box-shadow:0 10px 28px rgba(0,0,0,.08),0 0 1px rgba(255,255,255,.12);transition:transform .2s ease,box-shadow .3s ease,border-color .3s ease;position:relative;overflow:hidden;border:1px solid rgba(255,255,255,.12);min-height:500px;display:flex;flex-direction:column;will-change:transform;contain:layout paint style;transform:translateZ(0)}
.feature-card::before{content:'';position:absolute;top:-110px;right:-110px;width:260px;height:260px;background:radial-gradient(circle,rgba(var(--primary-color-rgb),.12) 0%,transparent 70%);border-radius:50%;transition:transform .4s ease;z-index:0;filter:blur(10px)}
.feature-card::after{content:'';position:absolute;bottom:-60px;left:-60px;width:160px;height:160px;background:linear-gradient(135deg,rgba(var(--secondary-color-rgb),.06),transparent);border-radius:50%;transition:transform .4s ease;z-index:0;filter:blur(8px)}
.feature-card:hover{transform:translateY(-6px);box-shadow:0 14px 34px rgba(0,0,0,.12),0 0 2px rgba(255,255,255,.18);border-color:rgba(var(--primary-color-rgb),.22)}
.feature-card:hover::before{transform:translate(-8px,-8px)}
.feature-card:hover::after{transform:translate(8px,8px)}
.feature-card-inner{position:relative;z-index:1;flex:1;display:flex;flex-direction:column}
.feature-icon{width:100px;height:100px;background:linear-gradient(135deg,var(--primary-color),rgba(var(--primary-color-rgb),.85));color:#fff;border-radius:24px;display:flex;align-items:center;justify-content:center;font-size:2.5rem;margin-bottom:25px;transition:transform .2s ease,box-shadow .3s ease;box-shadow:0 8px 24px rgba(var(--primary-color-rgb),.45);position:relative;overflow:hidden;border:2px solid rgba(255,255,255,.1);will-change:transform}
.feature-icon::before{content:'';position:absolute;top:0;left:-100%;width:100%;height:100%;background:linear-gradient(90deg,transparent,rgba(255,255,255,.3),transparent);transition:all .5s ease}
.feature-card:hover .feature-icon{transform:translateY(-6px);box-shadow:0 12px 28px rgba(var(--primary-color-rgb),.55)}
.feature-card:hover .feature-icon::before{left:100%;transition-duration:.7s}
.file-icon{position:absolute;bottom:8px;right:8px;width:24px;height:24px;background:rgba(255,255,255,.9);border-radius:4px;display:flex;align-items:center;justify-content:center;font-size:.75rem;color:var(--primary-color);font-weight:700;box-shadow:0 2px 6px rgba(0,0,0,.2);z-index:1;text-align:center}
.feature-card h3{color:var(--secondary-color);font-size:1.6rem;margin-bottom:15px;font-weight:700;position:relative;display:inline-block}
.feature-card h3::after{content:'';position:absolute;bottom:-8px;left:0;width:48px;height:3px;background:linear-gradient(90deg,var(--primary-color),transparent);border-radius:2px;transition:width .3s ease}
.feature-card:hover h3::after{width:72px}
.feature-description{color:var(--light-text);line-height:1.7;font-size:1.05rem;margin-bottom:25px;transition:color .3s ease}
.feature-details{margin-top:20px;padding:20px;background:rgba(var(--primary-color-rgb),.03);border-radius:12px;border:1px solid rgba(var(--primary-color-rgb),.05);transition:background .3s ease,border-color .3s ease}
.feature-card:hover .feature-details{background:rgba(var(--primary-color-rgb),.05);border-color:rgba(var(--primary-color-rgb),.1)}
.feature-card-btn{display:inline-flex;align-items:center;padding:14px 28px;background:linear-gradient(135deg,var(--primary-color),var(--secondary-color),var(--primary-color));color:#fff;border-radius:16px;font-weight:600;text-decoration:none;margin-top:auto;transition:transform .2s ease,box-shadow .3s ease,background-position .3s ease;box-shadow:0 6px 18px rgba(var(--primary-color-rgb),.35);border:none;cursor:pointer;overflow:hidden;position:relative;gap:10px;background-size:200% 100%;will-change:transform}
.feature-card-btn::before{content:'';position:absolute;top:0;left:-100%;width:100%;height:100%;background:linear-gradient(90deg,transparent,rgba(255,255,255,.3),transparent);transition:all .5s ease}
.feature-card-btn:hover{transform:translateY(-4px);box-shadow:0 10px 28px rgba(var(--primary-color-rgb),.55);background-position:right center}
.feature-card-btn:hover::before{left:100%;transition-duration:.7s}
.scenario-section{background-color:#f5f5f5;padding:80px 0;position:relative;overflow:hidden}
.scenario-card{background:rgba(var(--card-bg-rgb),.92);backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);padding:35px;box-shadow:0 10px 26px rgba(0,0,0,.1);border:1px solid rgba(255,255,255,.6);border-radius:24px;transition:transform .2s ease,box-shadow .3s ease;position:relative;overflow:hidden;transform-style:preserve-3d;will-change:transform;contain:layout paint style;transform:translateZ(0)}
.scenario-card::before{content:'';position:absolute;top:0;left:0;width:100%;height:6px;background:linear-gradient(90deg,var(--primary-color),var(--secondary-color));z-index:1}
.scenario-card::after{content:'';position:absolute;bottom:0;right:0;width:100px;height:100px;background:linear-gradient(135deg,rgba(var(--primary-color-rgb),.1),rgba(var(--primary-color-rgb),0));border-radius:50% 0 0 0;transform:rotate(45deg) translate(30%,30%);transition:all .5s ease}
.scenario-card:hover{transform:translateY(-6px);box-shadow:0 16px 34px rgba(0,0,0,.13)}
.scenario-card:hover::after{transform:rotate(45deg) translate(20%,20%) scale(1.5)}
.scenario-card h3{color:var(--secondary-color);font-size:1.6rem;margin-bottom:15px;font-weight:700;letter-spacing:-.5px;position:relative;z-index:1;display:inline-flex;align-items:center;background:linear-gradient(90deg,var(--primary-color),var(--secondary-color));-webkit-background-clip:text;background-clip:text;color:transparent}
.scenario-card h3 i{color:var(--primary-color);margin-right:10px;background:none;background-clip:unset;-webkit-background-clip:unset;color:var(--primary-color)}
.scenario-card h3::after{content:'';position:absolute;bottom:-8px;left:0;width:0;height:4px;background:linear-gradient(90deg,var(--primary-color),var(--secondary-color));border-radius:2px}
.scenario-card:hover h3::after{width:80px;transition:all .4s ease}
.scenario-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:30px;perspective:1000px}
.workflow-section{padding:80px 0;background-color:var(--card-bg);position:relative;overflow:hidden}
.faq-section{background-color:#f5f5f5;padding:80px 0;position:relative;overflow:hidden}
@media (max-width:768px){.feature-grid{grid-template-columns:1fr;gap:25px}}
.workflow-wrapper .section-subtitle{max-width:900px;margin-bottom:30px}
@media (prefers-reduced-motion: reduce){.feature-card,.feature-card-btn,.feature-icon,.scenario-card{transition:none}}
@media (prefers-reduced-motion: reduce){.feature-card:hover,.scenario-card:hover{transform:none;box-shadow:0 10px 26px rgba(0,0,0,.1)}}

/* 视频教程模块 */
.video-tutorials-section{padding:80px 0;background-color:#fff}
.video-player-container{max-width:1200px;margin:0 auto;padding:0 20px}
.video-tabs{display:flex;flex-wrap:wrap;gap:12px;justify-content:center;margin-bottom:24px}
.video-tab{display:inline-flex;align-items:center;gap:8px;padding:10px 16px;background-color:var(--card-bg);border:1px solid var(--border-light);border-radius:20px;color:var(--light-text);cursor:pointer;transition:background-color .2s ease,color .2s ease,transform .2s ease}
.video-tab i{color:var(--primary-color)}
.video-tab:hover{transform:translateY(-2px);background-color:#f7f7f7}
.video-tab.active{background-color:var(--primary-color);color:#fff;border-color:var(--primary-color)}
.video-player-wrapper{display:flex;gap:24px;align-items:flex-start}
.video-preview{flex:1;background-color:var(--card-bg);border:1px solid var(--border-light);border-radius:var(--border-radius);box-shadow:var(--box-shadow);min-height:260px;display:flex;align-items:center;justify-content:center}
.video-placeholder{text-align:center;color:var(--light-text)}
.video-placeholder i{font-size:3rem;color:var(--primary-color);margin-bottom:10px}
.video-content-info{width:360px;background-color:var(--card-bg);border:1px solid var(--border-light);border-radius:var(--border-radius);box-shadow:var(--box-shadow);padding:20px}
.video-content-info h3{color:var(--secondary-color);margin-bottom:10px;font-size:1.25rem}
.video-content-info p{color:var(--light-text);margin-bottom:12px}
.video-meta{display:flex;gap:16px;color:var(--light-text)}
.video-views,.video-date{display:inline-flex;align-items:center;gap:6px}
@media (max-width:992px){.video-player-wrapper{flex-direction:column}.video-content-info{width:100%}}
.video-player-wrapper,.video-player-container,.video-preview{position:relative}
#video-player{width:100%}
#video-player video,#video-player iframe{width:100%;max-width:100%;height:auto;aspect-ratio:16/9;display:block;border-radius:var(--border-radius)}
.video-tutorials-section audio{display:none!important}

/* 操作指南模块 */
.workflow-section{padding:80px 0;background-color:var(--card-bg);position:relative;overflow:hidden}
.workflow-section::before{content:'';position:absolute;bottom:0;left:0;width:100%;height:50%;background:radial-gradient(circle at bottom left,rgba(var(--primary-color-rgb),.05) 0%,transparent 60%);pointer-events:none}
.workflow-wrapper{background:linear-gradient(135deg,var(--card-bg),rgba(var(--primary-color-rgb),.03));border-radius:24px;padding:40px;margin:40px auto;box-shadow:var(--box-shadow);max-width:1200px;border:1px solid rgba(var(--primary-color-rgb),.1);transition:all .3s ease}
.workflow-title{text-align:center;color:var(--secondary-color);font-size:2rem;margin-bottom:40px;font-weight:700;position:relative;padding-bottom:20px;letter-spacing:-.5px}
.workflow-title::after{content:'';position:absolute;bottom:0;left:50%;transform:translateX(-50%);width:100px;height:4px;background:linear-gradient(90deg,var(--primary-color),var(--secondary-color));border-radius:2px}
.workflow-steps{position:relative;max-width:1000px;margin:0 auto;padding:20px 0}
.workflow-step{position:relative;margin-bottom:80px;display:flex;align-items:flex-start;min-height:120px;width:100%}
.workflow-step:nth-child(1),.workflow-step:nth-child(3){justify-content:flex-start}
.workflow-step:nth-child(2),.workflow-step:nth-child(4){justify-content:flex-end}
.workflow-step:last-child{margin-bottom:0}
.step-content{background:rgba(255,255,255,.92);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);padding:35px;box-shadow:0 12px 35px rgba(0,0,0,.1);border:1px solid rgba(255,255,255,.7);transition:none;position:relative;overflow:hidden;border-radius:24px}
.step-content::before{content:'';position:absolute;top:0;left:0;width:100%;height:6px;background:linear-gradient(90deg,var(--primary-color),var(--secondary-color));z-index:1}
.step-content::after{content:'';position:absolute;bottom:0;right:0;width:100px;height:100px;background:linear-gradient(135deg,rgba(var(--primary-color-rgb),.1),rgba(var(--primary-color-rgb),0));border-radius:50% 0 0 0;transform:rotate(45deg) translate(30%,30%);transition:none}
.workflow-step:hover .step-content{transform:none;box-shadow:0 12px 35px rgba(0,0,0,.1)}
.workflow-step:hover .step-content::after{transform:rotate(45deg) translate(30%,30%)}
.step-content h4{color:var(--secondary-color);font-size:1.6rem;margin-bottom:15px;font-weight:700;letter-spacing:-.5px;position:relative;z-index:1;display:inline-block;background:linear-gradient(90deg,var(--primary-color),var(--secondary-color));-webkit-background-clip:text;background-clip:text;color:transparent}
.step-content h4::after{content:'';position:absolute;bottom:-8px;left:0;width:0;height:4px;background:linear-gradient(90deg,var(--primary-color),var(--secondary-color));border-radius:2px}
.workflow-step:hover .step-content h4::after{width:0}
.step-content p{color:var(--light-text);line-height:1.8;margin:0 0 18px 0;font-size:1.1rem;position:relative;z-index:1}

/* 常见问题模块 */
.faq-grid{max-width:1200px;margin:0 auto;display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:30px}
.faq-card{background:rgba(var(--card-bg-rgb),.92);backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);padding:30px;box-shadow:0 12px 35px rgba(0,0,0,.1);border:1px solid rgba(255,255,255,.7);border-radius:24px;transition:none;position:relative;overflow:hidden;transform-style:preserve-3d;min-height:250px;display:flex;flex-direction:column}
.faq-card::before{content:'';position:absolute;top:0;left:0;width:100%;height:6px;background:linear-gradient(90deg,var(--primary-color),var(--secondary-color));z-index:1}
.faq-card::after{content:'';position:absolute;bottom:0;right:0;width:100px;height:100px;background:linear-gradient(135deg,rgba(var(--primary-color-rgb),.1),rgba(var(--primary-color-rgb),0));border-radius:50% 0 0 0;transform:rotate(45deg) translate(30%,30%)}
.faq-card h4{color:var(--secondary-color);margin-bottom:15px;font-size:1.2rem;font-weight:600;position:relative;z-index:1;background:linear-gradient(90deg,var(--primary-color),var(--secondary-color));-webkit-background-clip:text;background-clip:text;color:transparent}
.faq-card p{color:var(--light-text);line-height:1.6}
.feature-card,.feature-icon,.feature-card-btn{transition:none}
.feature-card::before,.feature-card::after{transition:none}
.feature-card:hover{transform:none;box-shadow:0 10px 28px rgba(0,0,0,.08),0 0 1px rgba(255,255,255,.12);border-color:rgba(255,255,255,.12)}
.feature-card:hover::before{transform:none}
.feature-card:hover::after{transform:none}
.feature-card:hover .feature-icon{transform:none;box-shadow:0 8px 24px rgba(var(--primary-color-rgb),.45)}
.feature-card h3::after{transition:none}
.feature-card:hover h3::after{width:48px}
.
.feature-card-btn{transition:none}
.feature-card-btn::before{content:none}
.feature-card-btn:hover{transform:none;box-shadow:0 6px 18px rgba(var(--primary-color-rgb),.35);background-position:left center}
.feature-card-btn:hover::before{left:-100%}
/* 性能增强模式 */
.perf-lite .feature-section::before{display:none}
.perf-lite .feature-card{backdrop-filter:none;box-shadow:0 4px 12px rgba(0,0,0,.08);border-color:rgba(0,0,0,.06);transform:none}
.perf-lite .feature-card::before,.perf-lite .feature-card::after{display:none}
.perf-lite .feature-card:hover{transform:none;box-shadow:0 4px 12px rgba(0,0,0,.08)}
.perf-lite .feature-icon{transition:none;box-shadow:0 6px 18px rgba(var(--primary-color-rgb),.3)}
.perf-lite .feature-card-btn{transition:none}
.perf-lite .scenario-card{backdrop-filter:none;box-shadow:0 6px 16px rgba(0,0,0,.08);transform:none}
.perf-lite .scenario-card::before,.perf-lite .scenario-card::after{display:none}
.perf-lite .scenario-card:hover{transform:none;box-shadow:0 6px 16px rgba(0,0,0,.08)}