:root{--brand-primary:#f54319;--brand-secondary:#ff6d20;--bg-light:#f4f5f8;--bg-white:#fff;--text-primary:#333;--text-secondary:#999;--text-white:#fff;--divider:#e6e6e6;--shadow-sm:0 2px 8px #0000000f;--shadow-md:0 4px 20px #00000014;--shadow-lg:0 8px 40px #0000001f;--radius:16px;--max-width:1200px;--header-height:72px}*,:before,:after{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth;font-size:16px}body{color:var(--text-primary);background:var(--bg-light);-webkit-font-smoothing:antialiased;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Hiragino Sans GB,Microsoft YaHei,sans-serif;line-height:1.6}a{color:inherit;text-decoration:none}img{max-width:100%;height:auto}ul{list-style:none}.container{max-width:var(--max-width);margin:0 auto;padding:0 24px}.page{min-height:100vh;padding-top:var(--header-height)}.section-title{text-align:center;margin-bottom:.5rem;font-size:2rem;font-weight:700}.section-subtitle{text-align:center;color:var(--text-secondary);margin-bottom:3rem;font-size:1.05rem}@media (width<=768px){html{font-size:14px}.container{padding:0 16px}.section-title{font-size:1.5rem}}.header{height:var(--header-height);-webkit-backdrop-filter:blur(10px);border-bottom:1px solid var(--divider);z-index:1000;background:#fffffff5;position:fixed;top:0;left:0;right:0}.header-inner{justify-content:space-between;align-items:center;height:100%;display:flex}.logo{align-items:center;gap:10px;display:flex}.logo-img{border-radius:10px;width:36px;height:36px}.logo-name{color:var(--brand-primary);font-size:1.2rem;font-weight:700}.logo-tagline{color:var(--text-secondary);font-size:.85rem;display:none}@media (width>=640px){.logo-tagline{display:inline}}.nav{align-items:center;gap:4px;display:flex}.nav-link{color:var(--text-secondary);border-radius:8px;padding:8px 16px;font-size:.95rem;transition:all .2s}.nav-link:hover{color:var(--brand-primary);background:#f543190f}.nav-link.active{color:var(--brand-primary);font-weight:600}.hamburger{cursor:pointer;background:0 0;border:none;flex-direction:column;gap:5px;padding:4px;display:none}.hamburger span{background:var(--text-primary);border-radius:2px;width:24px;height:2px;transition:all .3s;display:block}.hamburger.active span:first-child{transform:rotate(45deg)translate(5px,5px)}.hamburger.active span:nth-child(2){opacity:0}.hamburger.active span:nth-child(3){transform:rotate(-45deg)translate(5px,-5px)}@media (width<=768px){.nav{top:var(--header-height);background:var(--bg-white);border-bottom:1px solid var(--divider);box-shadow:var(--shadow-md);flex-direction:column;gap:2px;padding:12px;display:none;position:fixed;left:0;right:0}.nav--open{display:flex}.nav-link{text-align:left;width:100%;padding:12px 16px}.hamburger{display:flex}}.footer{background:var(--text-primary);color:var(--text-white);padding:48px 0 32px}.footer-links{flex-wrap:wrap;justify-content:center;gap:8px 24px;margin-bottom:24px;display:flex}.footer-links a{color:#ffffffb3;font-size:.9rem;transition:color .2s}.footer-links a:hover{color:var(--text-white)}.footer-info{text-align:center;color:#ffffff80;margin-bottom:16px;font-size:.85rem;line-height:1.8}.footer-copy{text-align:center;color:#fff6;border-top:1px solid #ffffff1a;padding-top:16px;font-size:.8rem}.footer-copy a{color:#fff9;transition:color .2s}.footer-copy a:hover{color:var(--text-white);text-decoration:underline}@media (width<=480px){.footer-links{gap:6px 16px}}.hero{align-items:center;min-height:90vh;display:flex;position:relative;overflow:hidden}.hero-bg{z-index:-1;background:linear-gradient(135deg,#fff5f0 0%,#ffe8dd 40%,#fff 70%);position:absolute;inset:0}.hero-content{align-items:center;gap:60px;width:100%;padding:60px 24px 80px;display:flex}.hero-text{flex:1}.hero-title{color:var(--brand-primary);margin-bottom:16px;font-size:3rem;font-weight:800;line-height:1.2}.hero-desc{color:var(--text-secondary);margin-bottom:24px;font-size:1.15rem;line-height:1.6}.hero-sellpoints{color:var(--text-primary);flex-wrap:wrap;gap:16px 32px;margin-bottom:32px;font-size:.95rem;display:flex}.hero-cta{background:linear-gradient(135deg, var(--brand-primary), var(--brand-secondary));color:var(--text-white);border-radius:60px;padding:14px 40px;font-size:1.05rem;font-weight:600;transition:transform .2s,box-shadow .2s;display:inline-block;box-shadow:0 4px 16px #f543194d}.hero-cta:hover{transform:translateY(-2px);box-shadow:0 6px 24px #f5431966}.hero-visual{flex-shrink:0}.phone-mockup{background:#1a1a2e;border-radius:32px;width:260px;height:520px;padding:10px;box-shadow:0 20px 60px #00000026,0 0 0 1px #ffffff14}.phone-notch{background:#1a1a2e;border-radius:0 0 14px 14px;width:100px;height:22px;margin:-10px auto 10px}.phone-screen{background:linear-gradient(#f54319,#ff6d20);border-radius:22px;flex-direction:column;gap:10px;height:calc(100% - 12px);padding:16px 12px;display:flex}.ph-top{background:#ffffff4d;border-radius:9px;width:50%;height:18px}.ph-badge{color:#fff;background:#fff3;border-radius:20px;align-self:flex-start;padding:4px 10px;font-size:.75rem}.ph-row{background:#fff3;border-radius:5px;width:100%;height:10px}.ph-row.short{width:65%}.ph-cards{flex:1;gap:8px;margin-top:8px;display:flex}.ph-card{background:#ffffff26;border-radius:12px;flex:1}.section-block{padding:80px 0}.features{background:var(--bg-white)}.feat-grid{grid-template-columns:repeat(4,1fr);gap:24px;display:grid}.feat-card{border-radius:var(--radius);background:var(--bg-light);text-align:center;padding:32px 20px;transition:transform .3s}.feat-card:hover{transform:translateY(-4px)}.feat-icon{margin-bottom:16px;font-size:2.5rem;display:block}.feat-card h3{margin-bottom:12px;font-size:1.1rem;font-weight:700}.feat-card p{color:var(--text-secondary);font-size:.9rem;line-height:1.7}.hot-products{background:var(--bg-light)}.hot-grid{grid-template-columns:repeat(4,1fr);gap:20px;display:grid}.hot-card{background:var(--bg-white);border-radius:var(--radius);box-shadow:var(--shadow-sm);transition:transform .3s;overflow:hidden}.hot-card:hover{box-shadow:var(--shadow-md);transform:translateY(-4px)}.hot-img{background:linear-gradient(135deg,#fce4d6,#ffe8dd);height:160px;position:relative}.hot-tag{background:var(--brand-primary);color:#fff;border-radius:20px;padding:2px 10px;font-size:.75rem;position:absolute;top:12px;left:12px}.hot-card h4{padding:16px 16px 8px;font-size:1rem}.hot-bottom{justify-content:space-between;align-items:center;padding:8px 16px 16px;display:flex}.hot-price{color:var(--brand-primary);font-size:1.1rem;font-weight:700}.hot-btn{background:var(--brand-primary);color:#fff;cursor:pointer;border:none;border-radius:20px;padding:6px 16px;font-size:.85rem;transition:opacity .2s}.hot-btn:hover{opacity:.9}.reviews{background:var(--bg-white)}.review-grid{grid-template-columns:repeat(2,1fr);gap:24px;max-width:800px;margin:0 auto;display:grid}.review-card{background:var(--bg-light);border-radius:var(--radius);text-align:center;padding:32px 28px}.review-stars{color:#f59e0b;margin-bottom:12px;font-size:1.2rem}.review-text{color:var(--text-primary);margin-bottom:16px;font-size:1rem;font-style:italic;line-height:1.7}.review-user{color:var(--text-secondary);font-size:.9rem}@media (width<=1024px){.feat-grid,.hot-grid{grid-template-columns:repeat(2,1fr)}}@media (width<=768px){.hero-content{text-align:center;flex-direction:column;gap:40px}.hero-title{font-size:2rem}.hero-sellpoints{justify-content:center}.phone-mockup{width:200px;height:400px}.review-grid{grid-template-columns:1fr}}@media (width<=480px){.feat-grid,.hot-grid{grid-template-columns:1fr}.hero-title{font-size:1.6rem}.hero-sellpoints{flex-direction:column;align-items:center}}.prod-hero{text-align:center;background:linear-gradient(135deg,#fff5f0,#ffe8dd);padding:100px 0 60px}.prod-hero h1{color:var(--brand-primary);margin-bottom:12px;font-size:2.2rem;font-weight:800}.prod-hero p{color:var(--text-secondary);font-size:1.05rem}.cat-grid{grid-template-columns:repeat(3,1fr);gap:24px;display:grid}.cat-card{background:var(--bg-white);border-radius:var(--radius);text-align:center;box-shadow:var(--shadow-sm);padding:40px 24px;transition:transform .3s}.cat-card:hover{box-shadow:var(--shadow-md);transform:translateY(-4px)}.cat-icon{margin-bottom:16px;font-size:3rem;display:block}.cat-card h3{margin-bottom:10px;font-size:1.15rem;font-weight:700}.cat-card p{color:var(--text-secondary);font-size:.9rem;line-height:1.6}.services{background:var(--bg-white)}.svc-grid{grid-template-columns:repeat(2,1fr);gap:20px;max-width:800px;margin:0 auto;display:grid}.svc-card{background:var(--bg-light);border-radius:var(--radius);align-items:flex-start;gap:16px;padding:28px 24px;display:flex}.svc-icon{flex-shrink:0;font-size:2rem}.svc-card h3{margin-bottom:6px;font-size:1.05rem;font-weight:700}.svc-card p{color:var(--text-secondary);font-size:.9rem;line-height:1.6}@media (width<=768px){.prod-hero h1{font-size:1.6rem}.cat-grid{grid-template-columns:repeat(2,1fr)}.svc-grid{grid-template-columns:1fr}}@media (width<=480px){.cat-grid{grid-template-columns:1fr}}.about-hero{text-align:center;background:linear-gradient(135deg,#fff5f0,#ffe8dd);padding:100px 0 60px}.about-hero h1{color:var(--brand-primary);margin-bottom:40px;font-size:2.5rem;font-weight:800}.about-story{text-align:left;max-width:800px;margin:0 auto}.about-story p{color:var(--text-secondary);margin-bottom:20px;font-size:1.05rem;line-height:1.9}.about-story strong{color:var(--brand-primary);font-weight:600}.values-grid{grid-template-columns:repeat(3,1fr);gap:24px;display:grid}.value-card{background:var(--bg-white);border-radius:var(--radius);text-align:center;box-shadow:var(--shadow-sm);border-top:4px solid var(--brand-primary);padding:40px 28px}.value-card h3{color:var(--brand-primary);margin-bottom:12px;font-size:1.2rem;font-weight:700}.value-card p{color:var(--text-secondary);font-size:.95rem;line-height:1.7}.milestones{background:var(--bg-white)}.milestone-list{flex-direction:column;gap:0;max-width:700px;margin:0 auto;display:flex;position:relative}.milestone-list:before{content:"";background:var(--divider);width:2px;position:absolute;top:0;bottom:0;left:100px}.milestone-item{align-items:center;gap:32px;padding:24px 0;display:flex;position:relative}.milestone-year{width:80px;color:var(--brand-primary);text-align:right;flex-shrink:0;font-size:1.1rem;font-weight:700}.milestone-dot{background:var(--brand-primary);z-index:1;border-radius:50%;flex-shrink:0;width:14px;height:14px}.milestone-event{color:var(--text-secondary);font-size:1rem;line-height:1.5}@media (width<=768px){.about-hero h1{font-size:1.8rem}.values-grid{grid-template-columns:1fr}.milestone-list:before{left:60px}.milestone-year{width:50px;font-size:.95rem}.milestone-item{gap:16px}}.contact-hero{text-align:center;background:linear-gradient(135deg,#fff5f0,#ffe8dd);padding:100px 0 60px}.contact-hero h1{color:var(--brand-primary);margin-bottom:12px;font-size:2.2rem;font-weight:800}.contact-hero p{color:var(--text-secondary);font-size:1.05rem}.contact-grid{grid-template-columns:repeat(2,1fr);gap:24px;max-width:800px;margin:0 auto;display:grid}.contact-card{background:var(--bg-white);border-radius:var(--radius);text-align:center;box-shadow:var(--shadow-sm);padding:36px 28px}.contact-icon{margin-bottom:12px;font-size:2.5rem;display:block}.contact-card h3{margin-bottom:8px;font-size:1.1rem;font-weight:600}.contact-link{color:var(--brand-primary);font-size:1.05rem;font-weight:500}.contact-note{color:var(--text-secondary);margin-top:8px;font-size:.85rem}.contact-faq{background:var(--bg-white)}.faq-quick-links{flex-wrap:wrap;justify-content:center;gap:16px;display:flex}.faq-link{background:var(--bg-light);color:var(--text-primary);border-radius:60px;padding:12px 28px;font-size:.95rem;transition:all .2s}.faq-link:hover{background:var(--brand-primary);color:var(--text-white)}@media (width<=480px){.contact-grid{grid-template-columns:1fr}}.help-hero{text-align:center;background:linear-gradient(135deg,#fff5f0,#ffe8dd);padding:100px 0 60px}.help-hero h1{color:var(--brand-primary);margin-bottom:12px;font-size:2.2rem;font-weight:800}.help-hero p{color:var(--text-secondary);font-size:1.05rem}.faq-section{margin-bottom:48px}.faq-section:last-child{margin-bottom:0}.faq-section-title{border-bottom:2px solid var(--brand-primary);margin-bottom:20px;padding-bottom:12px;font-size:1.4rem;font-weight:700}.faq-list{flex-direction:column;gap:8px;display:flex}.faq-item{background:var(--bg-white);box-shadow:var(--shadow-sm);border-radius:12px;overflow:hidden}.faq-item[open]{box-shadow:var(--shadow-md)}.faq-question{cursor:pointer;justify-content:space-between;align-items:center;padding:18px 24px;font-size:1rem;font-weight:600;list-style:none;transition:color .2s;display:flex}.faq-question:hover{color:var(--brand-primary)}.faq-question:after{content:"+";color:var(--text-secondary);font-size:1.3rem;transition:transform .2s}.faq-item[open] .faq-question:after{content:"−";transform:rotate(180deg)}.faq-answer{color:var(--text-secondary);padding:0 24px 18px;font-size:.95rem;line-height:1.7}@media (width<=768px){.help-hero h1{font-size:1.6rem}.faq-question{padding:14px 16px;font-size:.95rem}.faq-answer{padding:0 16px 14px}}.legal-hero{text-align:center;background:linear-gradient(135deg,#fff5f0,#ffe8dd);padding:100px 0 60px}.legal-hero h1{color:var(--brand-primary);margin-bottom:12px;font-size:2.2rem;font-weight:800}.legal-hero p{color:var(--text-secondary);font-size:1.05rem}.legal-content{max-width:800px;margin:0 auto}.legal-content h2{color:var(--brand-primary);border-bottom:1px solid var(--divider);margin:36px 0 16px;padding-bottom:8px;font-size:1.3rem;font-weight:700}.legal-content h3{margin:20px 0 10px;font-size:1.05rem;font-weight:600}.legal-content p{color:var(--text-secondary);margin-bottom:12px;font-size:.95rem;line-height:1.8}.legal-update{border-top:1px solid var(--divider);text-align:center;margin-top:40px;padding-top:20px;color:var(--text-secondary)!important;font-size:.85rem!important}@media (width<=768px){.legal-hero h1{font-size:1.6rem}}