:root{--bg-primary: #0a0a0f;--bg-secondary: #111118;--bg-card: #16161f;--bg-card-hover: #1c1c28;--border-color: #ffffff0f;--border-glow: #8b5cf64d;--text-primary: #f0f0f5;--text-secondary: #99a;--text-muted: #667;--accent-purple: #8b5cf6;--accent-blue: #3b82f6;--accent-cyan: #06b6d4;--accent-pink: #ec4899;--accent-orange: #f97316;--gradient-hero: linear-gradient(135deg, #0a0a1a 0%, #1a0a2e 25%, #0f1b3d 50%, #0a1628 75%, #0a0a1a 100%);--gradient-card: linear-gradient(145deg, #8b5cf614 0%, #3b82f60d 100%);--gradient-accent: linear-gradient(135deg, #8b5cf6, #3b82f6, #06b6d4);--gradient-btn: linear-gradient(135deg, #8b5cf6, #6d28d9);--gradient-btn-hover: linear-gradient(135deg, #7c3aed, #5b21b6);--shadow-glow: 0 0 40px #8b5cf626;--shadow-card: 0 4px 24px #0000004d;--radius-sm: 8px;--radius-md: 12px;--radius-lg: 16px;--radius-xl: 24px;--font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Microsoft YaHei", sans-serif;--transition: all .3s cubic-bezier(.4, 0, .2, 1)}*,:before,:after{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth;font-size:16px}body{font-family:var(--font-sans);background:var(--bg-primary);color:var(--text-primary);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;line-height:1.7;overflow-x:hidden}a{color:inherit;text-decoration:none}img{max-width:100%;height:auto}ul{list-style:none}.container{max-width:1200px;margin:0 auto;padding:0 24px}.section{padding:100px 0;position:relative}.section-header{text-align:center;max-width:760px;margin:0 auto 64px}.section-label{letter-spacing:.1em;text-transform:uppercase;color:var(--accent-purple);background:#8b5cf61a;border:1px solid #8b5cf633;border-radius:100px;display:inline-flex;align-items:center;gap:8px;margin-bottom:16px;padding:6px 16px;font-size:.85rem;font-weight:600}.section-title{background:var(--gradient-accent);-webkit-text-fill-color:transparent;-webkit-background-clip:text;background-clip:text;margin-bottom:20px;font-size:clamp(2rem,4vw,2.8rem);font-weight:800;line-height:1.2}.section-desc{color:var(--text-secondary);max-width:640px;font-size:1.1rem;line-height:1.8}.section-header .section-desc{margin:0 auto}.gradient-text{background:var(--gradient-accent);-webkit-text-fill-color:transparent;-webkit-background-clip:text;background-clip:text}.btn-primary,.btn-secondary{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:none;border-radius:var(--radius-md);font-weight:600;font-size:1rem;cursor:pointer;transition:var(--transition);font-family:inherit}.btn-primary{background:var(--gradient-btn);color:#fff;box-shadow:var(--shadow-glow);white-space:nowrap}.btn-primary:hover{background:var(--gradient-btn-hover);transform:translateY(-2px);box-shadow:0 8px 30px #8b5cf640}.btn-secondary{background:#ffffff0d;color:var(--text-primary);border:1px solid var(--border-color)}.btn-secondary:hover{background:#ffffff14;border-color:var(--border-glow);transform:translateY(-2px)}.btn-lg{padding:14px 28px;font-size:1.05rem}.fade-in-up{opacity:0;transform:translateY(30px);transition:opacity .7s ease,transform .7s ease}.fade-in-up.is-visible{opacity:1;transform:translateY(0)}.navbar{position:fixed;top:0;left:0;right:0;z-index:100;transition:var(--transition);padding:18px 0}.navbar.scrolled{background:#0a0a0fcc;-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);border-bottom:1px solid var(--border-color);padding:12px 0}.navbar-inner{display:flex;align-items:center;justify-content:space-between}.navbar-brand{display:flex;align-items:center;gap:10px}.brand-logo{height:40px;width:auto;max-width:160px;border-radius:8px;display:block;object-fit:contain}.brand-text{font-weight:800;font-size:1.25rem;color:var(--text-primary)}.navbar-links{display:flex;align-items:center;gap:24px;margin-left:auto;margin-right:16px}.nav-link{color:var(--text-secondary);font-size:.95rem;font-weight:500;transition:var(--transition);position:relative}.nav-link:hover{color:var(--text-primary)}.navbar-cta .btn-primary{padding:10px 20px;font-size:.95rem}.hero{position:relative;padding:180px 0 120px;overflow:hidden;background:var(--gradient-hero)}.hero-bg{position:absolute;top:0;right:0;bottom:0;left:0;z-index:0}.hero-grid{position:absolute;top:0;right:0;bottom:0;left:0;background-image:linear-gradient(#ffffff08 1px,transparent 1px),linear-gradient(90deg,#ffffff08 1px,transparent 1px);background-size:48px 48px;mask-image:radial-gradient(ellipse 80% 60% at 50% 40%,#000 40%,transparent 100%);-webkit-mask-image:radial-gradient(ellipse 80% 60% at 50% 40%,#000 40%,transparent 100%)}.hero-orb{position:absolute;border-radius:50%;filter:blur(80px);opacity:.55}.hero-orb-1{width:420px;height:420px;background:#8b5cf6;top:-120px;left:-80px}.hero-orb-2{width:380px;height:380px;background:#3b82f6;top:40px;right:-100px}.hero-orb-3{width:320px;height:320px;background:#06b6d4;bottom:-120px;left:40%}.hero-content{position:relative;z-index:2;text-align:center;max-width:860px;margin:0 auto}.hero-badge{display:inline-flex;align-items:center;gap:8px;padding:7px 16px;border-radius:100px;background:#8b5cf61a;border:1px solid #8b5cf633;color:var(--text-primary);font-size:.9rem;font-weight:500;margin-bottom:28px}.badge-dot{width:8px;height:8px;border-radius:50%;background:var(--accent-cyan);box-shadow:0 0 #06b6d4;animation:pulse 2s infinite}@keyframes pulse{0%{box-shadow:0 0 #06b6d480}70%{box-shadow:0 0 0 10px #06b6d400}to{box-shadow:0 0 #06b6d400}}.hero-title{font-size:clamp(2.6rem,6vw,4.4rem);font-weight:800;line-height:1.1;margin-bottom:24px;letter-spacing:-.02em}.hero-desc{color:var(--text-secondary);font-size:1.15rem;line-height:1.9;max-width:720px;margin:0 auto 36px}.hero-actions{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}.hero-stats{display:flex;align-items:center;justify-content:center;gap:28px;margin-top:56px;flex-wrap:wrap}.stat-item{text-align:center}.stat-value{font-size:1.8rem;font-weight:800;background:var(--gradient-accent);-webkit-text-fill-color:transparent;-webkit-background-clip:text;background-clip:text}.stat-label{color:var(--text-muted);font-size:.9rem;margin-top:4px}.stat-divider{width:1px;height:40px;background:var(--border-color)}.hero-scroll-hint{display:flex;flex-direction:column;align-items:center;gap:8px;margin-top:64px;color:var(--text-muted);font-size:.85rem}.scroll-line{width:1px;height:40px;background:linear-gradient(var(--accent-purple),transparent)}.features-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}.feature-card{position:relative;background:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius-lg);padding:32px;transition:var(--transition);overflow:hidden}.feature-card:before{content:"";position:absolute;top:0;right:0;bottom:0;left:0;background:var(--gradient-card);opacity:0;transition:var(--transition)}.feature-card:hover{transform:translateY(-6px);border-color:var(--border-glow);box-shadow:var(--shadow-card)}.feature-card:hover:before{opacity:1}.feature-icon{position:relative;z-index:1;width:56px;height:56px;display:grid;place-items:center;border-radius:var(--radius-md);background:var(--gradient-btn);margin-bottom:20px;box-shadow:var(--shadow-glow)}.feature-icon svg{width:28px;height:28px;color:#fff}.feature-tag{position:relative;z-index:1;display:inline-block;font-size:.75rem;font-weight:600;padding:3px 10px;border-radius:100px;background:#8b5cf61a;color:var(--accent-purple);border:1px solid #8b5cf633;margin-bottom:14px}.feature-title{position:relative;z-index:1;font-size:1.3rem;font-weight:700;margin-bottom:12px}.feature-desc{position:relative;z-index:1;color:var(--text-secondary);font-size:.98rem;line-height:1.8}.pricing-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:stretch}.pricing-card{position:relative;display:flex;flex-direction:column;background:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius-xl);padding:36px 32px;transition:var(--transition)}.pricing-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-card)}.pricing-card.popular{border-color:var(--border-glow);background:linear-gradient(180deg,#8b5cf60f,#16161f 40%);box-shadow:var(--shadow-glow)}.pricing-card.flagship{border-color:#06b6d44d}.pricing-badge{position:absolute;top:-13px;left:50%;transform:translate(-50%);background:var(--gradient-btn);color:#fff;font-size:.78rem;font-weight:700;padding:5px 16px;border-radius:100px;white-space:nowrap;box-shadow:var(--shadow-glow)}.pricing-name{font-size:1.4rem;font-weight:800}.pricing-tagline{color:var(--text-muted);font-size:.92rem;margin:6px 0 20px}.pricing-price{display:flex;align-items:baseline;gap:4px;margin-bottom:6px}.pricing-amount{font-size:2.8rem;font-weight:800;line-height:1}.pricing-period{color:var(--text-secondary);font-size:1rem}.pricing-note{color:var(--text-muted);font-size:.85rem;min-height:38px;margin-bottom:24px}.pricing-features{display:flex;flex-direction:column;gap:12px;margin-bottom:28px;flex:1}.pricing-feature{display:flex;align-items:flex-start;gap:10px;color:var(--text-secondary);font-size:.95rem}.pricing-feature svg{width:18px;height:18px;color:var(--accent-cyan);flex-shrink:0;margin-top:4px}.pricing-cta{width:100%;padding:16px 28px;font-size:1.05rem}.table-wrap{overflow-x:auto;border-radius:var(--radius-lg);border:1px solid var(--border-color)}.compare-table{width:100%;border-collapse:collapse;min-width:720px;background:var(--bg-card)}.compare-table th,.compare-table td{padding:16px 20px;text-align:left;border-bottom:1px solid var(--border-color)}.compare-table thead th{font-size:1.05rem;font-weight:700;background:#ffffff08}.compare-table thead th:first-child{color:var(--text-muted);font-weight:600}.compare-table tbody tr:last-child td{border-bottom:none}.compare-table tbody tr:hover{background:#ffffff05}.compare-table .col-feature{color:var(--text-secondary);font-weight:600}.compare-table .col-plan{font-weight:700;color:var(--text-primary)}.compare-table .plan-popular{color:var(--accent-purple)}.compare-table .plan-flagship{color:var(--accent-cyan)}.yes{color:var(--accent-cyan);font-weight:700;display:inline-flex;align-items:center;gap:6px}.yes svg{width:18px;height:18px}.no{color:var(--text-muted);font-weight:700}.why-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}.why-card{display:flex;gap:20px;background:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius-lg);padding:32px;transition:var(--transition)}.why-card:hover{transform:translateY(-4px);border-color:var(--border-glow);box-shadow:var(--shadow-card)}.why-num{font-size:1.6rem;font-weight:800;flex-shrink:0;width:52px;height:52px;display:grid;place-items:center;border-radius:var(--radius-md);background:var(--gradient-card);border:1px solid var(--border-glow);background-image:var(--gradient-accent);-webkit-text-fill-color:transparent;-webkit-background-clip:text;background-clip:text}.why-title{font-size:1.25rem;font-weight:700;margin-bottom:10px}.why-desc{color:var(--text-secondary);font-size:.98rem;line-height:1.8}.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}.step{position:relative;background:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius-lg);padding:32px 28px;transition:var(--transition)}.step:hover{transform:translateY(-4px);border-color:var(--border-glow);box-shadow:var(--shadow-card)}.step-num{width:48px;height:48px;display:grid;place-items:center;border-radius:50%;background:var(--gradient-btn);color:#fff;font-weight:800;font-size:1.2rem;margin-bottom:20px;box-shadow:var(--shadow-glow)}.step-title{font-size:1.2rem;font-weight:700;margin-bottom:10px}.step-desc{color:var(--text-secondary);font-size:.95rem;line-height:1.8}.faq-list{max-width:820px;margin:0 auto;display:flex;flex-direction:column;gap:14px}.faq-item{background:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius-md);overflow:hidden;transition:var(--transition)}.faq-item.open{border-color:var(--border-glow)}.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:20px 24px;background:none;border:none;cursor:pointer;color:var(--text-primary);font-size:1.05rem;font-weight:600;text-align:left;font-family:inherit}.faq-icon{flex-shrink:0;width:22px;height:22px;color:var(--accent-purple);transition:transform .3s ease}.faq-item.open .faq-icon{transform:rotate(45deg)}.faq-a{max-height:0;overflow:hidden;transition:max-height .35s ease}.faq-item.open .faq-a{max-height:600px}.faq-a-inner{padding:0 24px 22px;color:var(--text-secondary);font-size:.98rem;line-height:1.9}.pricing-footnote{color:var(--text-muted);font-size:.9rem}.about-section{background:var(--bg-secondary)}.about-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}.about-card{background:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius-lg);padding:30px 26px;transition:var(--transition)}.about-card:hover{transform:translateY(-4px);border-color:var(--border-glow);box-shadow:var(--shadow-card)}.about-icon{width:48px;height:48px;display:grid;place-items:center;border-radius:var(--radius-md);background:var(--gradient-card);border:1px solid var(--border-glow);margin-bottom:18px}.about-icon svg{width:24px;height:24px;color:var(--accent-purple)}.about-title{font-size:1.05rem;font-weight:700;color:var(--text-muted);margin-bottom:8px}.about-desc{font-size:1.05rem;color:var(--text-primary);font-weight:600;line-height:1.6;word-break:break-all}.cta-section{position:relative;overflow:hidden;text-align:center}.cta-bg-orb{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:600px;height:600px;border-radius:50%;background:radial-gradient(circle,#8b5cf640,transparent 70%);filter:blur(60px);z-index:0}.cta-content{position:relative;z-index:1;max-width:720px;margin:0 auto}.cta-title{font-size:clamp(2rem,4vw,3rem);font-weight:800;margin-bottom:18px}.cta-desc{color:var(--text-secondary);font-size:1.15rem;line-height:1.9;margin-bottom:32px}.cta-actions{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}.footer{background:var(--bg-secondary);border-top:1px solid var(--border-color);padding:70px 0 30px}.footer-inner{display:grid;grid-template-columns:1.4fr 2fr;gap:48px;margin-bottom:48px}.footer-brand{display:flex;flex-direction:column;gap:16px}.brand-icon{width:44px;height:44px}.footer-brand .brand-name{font-size:1.4rem;font-weight:800}.footer-brand .brand-name .accent{color:var(--accent-purple)}.footer-brand .brand-slogan{color:var(--text-muted);font-size:.92rem;max-width:280px;line-height:1.7}.footer-links{display:grid;grid-template-columns:repeat(3,1fr);gap:32px}.footer-col-title{font-size:.95rem;font-weight:700;margin-bottom:16px;color:var(--text-primary)}.footer-col a{display:block;color:var(--text-secondary);font-size:.92rem;padding:6px 0;transition:var(--transition)}.footer-col a:hover{color:var(--accent-purple)}.footer-bottom{border-top:1px solid var(--border-color);padding-top:28px;display:flex;flex-direction:column;gap:16px}.footer-company-info{color:var(--text-muted);font-size:.88rem}.footer-seo{color:var(--text-muted);font-size:.82rem;line-height:1.8;max-width:900px}.footer-contact{margin-bottom:48px;background:linear-gradient(135deg,#8b5cf629,#3b82f61f);border:1px solid var(--border-color);border-radius:16px;padding:28px 32px}.footer-contact-inner{display:flex;flex-direction:column;gap:10px}.fc-title{font-size:1.15rem;font-weight:800;color:var(--text-primary)}.fc-wechat{font-size:1.05rem;font-weight:700;color:var(--accent-purple)}.fc-qq{font-size:1.3rem;font-weight:800;color:var(--accent-purple);letter-spacing:.3px}.fc-note{color:var(--text-muted);font-size:.9rem;line-height:1.7;margin:0}.footer-filing{display:flex;align-items:center;gap:10px;color:var(--text-muted);font-size:.82rem;flex-wrap:wrap}.footer-filing .filing-police-icon{width:16px;height:16px;opacity:.7}.footer-filing .filing-divider{width:1px;height:12px;background:var(--border-color)}.footer-filing .filing-link{color:inherit;text-decoration:none;cursor:pointer;transition:color .2s ease}.footer-filing .filing-link:hover{color:var(--accent);text-decoration:underline}@media (max-width: 980px){.features-grid,.pricing-grid{grid-template-columns:1fr;max-width:460px;margin:0 auto}.why-grid{grid-template-columns:1fr}.steps,.about-grid{grid-template-columns:repeat(2,1fr)}.footer-inner{grid-template-columns:1fr;gap:32px}.navbar-links{display:none}}@media (max-width: 600px){.section{padding:70px 0}.hero{padding:140px 0 80px}.steps,.about-grid{grid-template-columns:1fr}.hero-stats{gap:16px}.stat-divider{display:none}.footer-links{grid-template-columns:1fr 1fr}.container{padding:0 18px}}