:root{--color-primary: #073B63;--color-primary-dark: #031E35;--color-primary-deep: #021424;--color-primary-light: #0A4E82;--color-accent: #13C8D8;--color-accent-hover: #0fb2c1;--color-accent-glow: rgba(19, 200, 216, .25);--color-bg-page: #F6F9FC;--color-bg-card: #FFFFFF;--color-bg-card-alt: #F0F5FA;--color-border: #DDE7F0;--color-border-subtle: #E8EFF6;--color-text-main: #072A47;--color-text-body: #1E3A5F;--color-text-muted: #536E88;--color-text-light: #8BA2B8;--color-text-inverse: #FFFFFF;--color-text-inverse-subtle: #D8E7F5;--radius-sm: 8px;--radius-md: 12px;--radius-lg: 18px;--radius-pill: 9999px;--shadow-sm: 0 2px 6px rgba(7, 42, 71, .05);--shadow-md: 0 8px 24px rgba(7, 42, 71, .08);--shadow-lg: 0 16px 36px rgba(7, 42, 71, .12);--shadow-featured: 0 16px 36px rgba(19, 200, 216, .18), 0 4px 12px rgba(7, 59, 99, .1);--max-width: 1200px;--max-width-narrow: 840px;--header-height: 72px}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,PingFang SC,Hiragino Sans GB,Microsoft YaHei,sans-serif;color:var(--color-text-body);background-color:var(--color-bg-page);line-height:1.6;scroll-behavior:smooth;-webkit-font-smoothing:antialiased}body{min-height:100vh;display:flex;flex-direction:column}main{flex:1}a{color:var(--color-primary-light);text-decoration:none;transition:color .2s ease,opacity .2s ease}a:hover{color:var(--color-accent)}img,svg{display:block;max-width:100%}.container{width:100%;max-width:var(--max-width);margin-left:auto;margin-right:auto;padding-left:24px;padding-right:24px}.container-narrow{max-width:var(--max-width-narrow)}.site-header{position:sticky;top:0;z-index:100;background-color:#031e35f2;backdrop-filter:blur(12px);border-bottom:1px solid 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rgba(0,0,0,.25)}.hero-subtitle{font-size:1.45rem;font-weight:600;color:var(--color-accent);letter-spacing:.01em;margin-bottom:18px}.hero-description{font-size:1.05rem;line-height:1.75;color:var(--color-text-inverse-subtle);margin-bottom:32px;max-width:560px}.hero-cta-group{display:flex;align-items:center;gap:16px;flex-wrap:wrap}.hero-visual-space{min-height:380px;pointer-events:none}.pricing-section{position:relative;margin-top:-36px;z-index:10;padding-bottom:72px}.pricing-cards-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:stretch}.pricing-card{background-color:var(--color-bg-card);border-radius:var(--radius-lg);padding:36px 30px;box-shadow:var(--shadow-md);border:1px solid var(--color-border);display:flex;flex-direction:column;position:relative;transition:transform .25s ease,box-shadow .25s ease}.pricing-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}.pricing-card.featured{border:2px solid var(--color-accent);box-shadow:var(--shadow-featured);transform:scale(1.03);z-index:2}.pricing-card.featured:hover{transform:scale(1.03) translateY(-4px)}.card-badge-featured{position:absolute;top:-14px;right:28px;background-color:var(--color-accent);color:var(--color-primary-dark);font-size:.82rem;font-weight:700;padding:3px 14px;border-radius:var(--radius-pill);box-shadow:0 4px 10px var(--color-accent-glow)}.card-header{margin-bottom:24px;padding-bottom:20px;border-bottom:1px solid var(--color-border-subtle)}.card-title-group{display:flex;align-items:center;gap:10px;margin-bottom:6px}.card-icon{width:28px;height:28px;display:flex;align-items:center;justify-content:center;border-radius:6px;background-color:#073b6314;color:var(--color-primary);font-size:1.1rem}.card-name{font-size:1.4rem;font-weight:700;color:var(--color-text-main)}.card-subtitle{font-size:.92rem;color:var(--color-text-muted)}.card-price-box{margin-top:18px}.card-price-main{font-size:1.6rem;font-weight:800;color:var(--color-text-main);letter-spacing:-.01em}.card-price-sub{font-size:.88rem;color:var(--color-text-muted);margin-top:4px}.card-features-list{list-style:none;margin-bottom:32px;flex:1}.card-feature-item{display:flex;align-items:flex-start;gap:10px;font-size:.94rem;color:var(--color-text-body);margin-bottom:14px;line-height:1.5}.feature-check{color:var(--color-accent);font-weight:700;font-size:1.1rem;line-height:1.2}.pricing-notice-box{margin-top:28px;padding:16px 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var(--color-border);position:relative}.step-number{position:absolute;top:18px;right:20px;font-size:2.2rem;font-weight:900;color:#073b6314;line-height:1}.step-card-title{font-size:1.2rem;font-weight:700;color:var(--color-text-main);margin-bottom:10px}.step-card-desc{font-size:.94rem;color:var(--color-text-muted);line-height:1.6}.platforms-container{background-color:var(--color-bg-card);border-radius:var(--radius-md);padding:32px;border:1px solid var(--color-border);display:flex;align-items:center;justify-content:space-around;flex-wrap:wrap;gap:24px}.platform-item{display:flex;flex-direction:column;align-items:center;gap:8px}.platform-icon{font-size:2rem;color:var(--color-primary)}.platform-name{font-size:.95rem;font-weight:600;color:var(--color-text-main)}.platform-clients{font-size:.8rem;color:var(--color-text-muted)}.faq-static-list{display:flex;flex-direction:column;gap:18px}.faq-item-static{background-color:var(--color-bg-card);border-radius:var(--radius-md);border:1px solid var(--color-border);padding:24px 28px;box-shadow:var(--shadow-sm)}.faq-question-title{font-size:1.15rem;font-weight:700;color:var(--color-text-main);margin-bottom:12px;display:flex;align-items:center;gap:10px}.faq-q-badge{display:inline-flex;align-items:center;justify-content:center;width:24px;height:24px;border-radius:6px;background-color:var(--color-primary);color:#fff;font-size:.82rem;font-weight:800;flex-shrink:0}.faq-answer-content{font-size:.96rem;color:var(--color-text-body);line-height:1.7;padding-left:34px}.posts-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}.post-card{background-color:var(--color-bg-card);border-radius:var(--radius-md);padding:28px 24px;border:1px solid var(--color-border);box-shadow:var(--shadow-sm);display:flex;flex-direction:column;transition:transform .2s ease,box-shadow .2s 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1fr;gap:36px;margin-bottom:48px}.footer-brand-title{color:#fff;font-size:1.25rem;font-weight:700;margin-bottom:12px}.footer-brand-desc{font-size:.92rem;line-height:1.65;color:#ffffffb3;max-width:320px}.footer-col-title{color:#fff;font-size:1rem;font-weight:600;margin-bottom:18px;letter-spacing:.02em}.footer-links-list{list-style:none;display:flex;flex-direction:column;gap:10px}.footer-link{color:#ffffffb8;font-size:.92rem;transition:color .2s ease}.footer-link:hover{color:var(--color-accent)}.footer-bottom{padding-top:28px;border-top:1px solid rgba(255,255,255,.1);display:flex;align-items:center;justify-content:space-between;font-size:.88rem;color:#ffffff8c;flex-wrap:wrap;gap:16px}@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;scroll-behavior:auto!important}}@media(max-width:992px){.hero-wrapper{background-image:url(/assets/feiyu/hero-mobile.webp);background-position:center top;background-size:cover;background-repeat:no-repeat;padding-top:40px;padding-bottom:64px}.hero-bg-overlay{background:linear-gradient(180deg,#031e35d1,#073b63ad 45%,#031e35e6)}.hero-visual-space{display:none}.hero-content-grid{grid-template-columns:1fr;gap:36px}.hero-main-title{font-size:2.8rem}.pricing-cards-grid{grid-template-columns:1fr;max-width:520px;margin:0 auto}.pricing-card.featured{transform:none}.pricing-card.featured:hover{transform:translateY(-4px)}.features-grid{grid-template-columns:repeat(2,1fr)}.steps-grid,.posts-grid{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr 1fr}}@media(max-width:640px){.hero-main-title{font-size:2.2rem}.hero-subtitle{font-size:1.15rem}.header-inner{flex-wrap:wrap;height:auto;padding-top:12px;padding-bottom:12px;gap:12px}.nav-links{gap:16px;font-size:.9rem;order:3;width:100%;justify-content:center;padding-top:8px;border-top:1px solid rgba(255,255,255,.08)}.features-grid,.footer-grid{grid-template-columns:1fr}.faq-answer-content{padding-left:0;margin-top:8px}}