/* 鲜链云官网：平面色块、真实产品证据、清晰获客路径 */
:root{--ink:#173e2c;--text:#33473b;--muted:#6b7c70;--paper:#f4f6ed;--white:#fff;--line:#d9e1d2;--lime:#dce86a;--lime-soft:#f0f4c9;--green:#246b45;--green-dark:#0e2d20;--orange:#a44b21;--error:#a43b32;--success:#246b45;--shadow:0 16px 48px rgba(23,62,44,.1)}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:96px}body{margin:0;background:var(--paper);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei",sans-serif;font-size:16px;line-height:24px}a{color:inherit;text-decoration:none}button,input,select,textarea{font:inherit}button,a,input,select,textarea{outline-offset:4px}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid var(--orange)}img{display:block;max-width:100%}h1,h2,h3,p{margin:0}h1,h2,h3{color:var(--ink);text-wrap:balance}p,li{text-wrap:pretty}.skip-link{position:fixed;left:16px;top:-80px;z-index:100;background:var(--ink);color:#fff;padding:8px 12px;border-radius:8px}.skip-link:focus{top:16px}.container{width:min(1184px,calc(100% - 64px));margin-inline:auto}.section{padding:80px 0}.section-sm{padding:64px 0}.heading-1{font-size:60px;line-height:60px;font-weight:600;letter-spacing:-2px}.heading-2{font-size:48px;line-height:48px;font-weight:600;letter-spacing:-1px}.heading-3{font-size:36px;line-height:40px;font-weight:600;letter-spacing:-.5px}.heading-4{font-size:30px;line-height:36px;font-weight:600}.heading-5{font-size:24px;line-height:32px;font-weight:600}.title-1{font-size:20px;line-height:28px;font-weight:500}.title-2{font-size:18px;line-height:28px;font-weight:500}.title-3{font-size:16px;line-height:24px;font-weight:500}.body-3{font-size:16px;line-height:24px;font-weight:400}.body-6{font-size:14px;line-height:20px;font-weight:400}.caption-3{font-size:12px;line-height:16px;font-weight:600}.caption-5{font-size:12px;line-height:16px;font-weight:400}.button-md{font-size:16px;line-height:24px;font-weight:600}.eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--green);font-size:14px;line-height:20px;font-weight:600;letter-spacing:1px}.eyebrow:before{content:"";width:8px;height:8px;border-radius:50%;background:var(--green)}.section-head{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:end;margin-bottom:48px}.section-head p{max-width:520px;color:var(--muted)}
.site-header{position:fixed;z-index:50;top:16px;left:0;right:0;pointer-events:none}.nav-wrap{pointer-events:auto;width:min(1184px,calc(100% - 32px));margin:auto;min-height:64px;padding:8px 12px;display:flex;align-items:center;gap:24px;background:rgba(255,255,255,.92);border:1px solid rgba(217,225,210,.9);border-radius:16px;box-shadow:0 8px 32px rgba(23,62,44,.08);backdrop-filter:blur(16px)}.brand{display:flex;align-items:center;gap:8px;flex:none}.brand img{width:40px;height:40px;object-fit:contain}.brand-text{display:flex;flex-direction:column}.brand-name{font-size:20px;line-height:28px;font-weight:600;color:var(--ink)}.brand-sub{font-size:12px;line-height:16px;color:var(--muted)}.nav-links{display:flex;align-items:center;justify-content:center;gap:24px;margin-left:auto}.nav-links a{font-size:14px;line-height:20px;font-weight:500;padding:8px 0;color:var(--muted);transition:color .3s cubic-bezier(.22,1,.36,1)}.nav-links a:hover,.nav-links a[aria-current=page]{color:var(--ink)}.nav-links a[aria-current=page]{box-shadow:inset 0 -2px var(--green)}.button{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;border:1px solid transparent;border-radius:8px;padding:8px 12px;cursor:pointer;transition:transform .5s cubic-bezier(.22,1,.36,1),background .3s cubic-bezier(.22,1,.36,1),color .3s cubic-bezier(.22,1,.36,1)}.button:hover{transform:translateY(-2px)}.button:active{transform:scale(.98)}.button-primary{background:var(--ink);color:#fff}.button-primary:hover{background:var(--green)}.button-secondary{background:var(--white);border-color:var(--line);color:var(--ink)}.button-lime{background:var(--lime);color:var(--ink)}.nav-toggle{display:none;margin-left:auto;width:44px;height:44px;border:0;background:transparent;border-radius:8px;position:relative;cursor:pointer}.nav-toggle span{position:absolute;left:12px;width:20px;height:2px;background:var(--ink);transition:transform .5s cubic-bezier(.22,1,.36,1)}.nav-toggle span:first-child{top:17px}.nav-toggle span:last-child{top:25px}.nav-toggle[aria-expanded=true] span:first-child{transform:translateY(4px) rotate(45deg)}.nav-toggle[aria-expanded=true] span:last-child{transform:translateY(-4px) rotate(-45deg)}
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.matrix{background:var(--white)}.product-grid{display:grid;grid-template-columns:repeat(2,1fr);border-top:1px solid var(--line);border-left:1px solid var(--line)}.product-item{padding:32px;min-height:264px;border-right:1px solid var(--line);border-bottom:1px solid var(--line);display:flex;flex-direction:column;gap:16px;background:#fff;transition:background .3s cubic-bezier(.22,1,.36,1)}.product-item:hover{background:#f8faef}.product-top{display:flex;align-items:center;justify-content:space-between;gap:16px}.product-index{font-size:12px;line-height:16px;color:var(--muted)}.product-item ul,.check-list{list-style:none;padding:0;margin:0;display:grid;gap:8px}.product-item li,.check-list li{position:relative;padding-left:16px;color:var(--muted)}.product-item li:before,.check-list li:before{content:"";position:absolute;left:0;top:10px;width:6px;height:6px;border-radius:50%;background:var(--green)}.text-link{margin-top:auto;color:var(--green);font-weight:600}.text-link:after{content:" →";transition:transform .3s cubic-bezier(.22,1,.36,1)}
.tagline-section{background:var(--green-dark);color:#fff}.tagline{max-width:920px;font-size:48px;line-height:48px;font-weight:600;color:#fff}.tagline-word{color:rgba(255,255,255,.3);transition:color .7s cubic-bezier(.22,1,.36,1)}.tagline-word.active{color:#fff}.tagline-section .eyebrow{color:var(--lime);margin-bottom:32px}.tagline-section .eyebrow:before{background:var(--lime)}.capability-list{border-top:1px solid var(--line)}.capability{display:grid;grid-template-columns:64px .7fr 1.3fr;gap:32px;padding:32px 0;border-bottom:1px solid var(--line);align-items:start}.capability-no{font-size:24px;line-height:32px;color:var(--green)}.capability p{color:var(--muted)}.solution-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.solution-card{position:relative;min-height:360px;padding:32px;border-radius:16px;display:flex;flex-direction:column;gap:24px;overflow:hidden;background:var(--lime-soft);border:1px solid transparent;transition:transform .5s cubic-bezier(.22,1,.36,1)}.solution-card:nth-child(2){background:#e4eee1}.solution-card:nth-child(3){background:#f2e8d4}.solution-card:hover{transform:translateY(-4px)}.solution-shape{width:64px;height:64px;border:1px solid currentColor;border-radius:50%;display:grid;place-items:center;color:var(--green);font-size:24px;line-height:32px}.solution-card p{color:var(--muted)}.solution-card .text-link{padding-top:16px;border-top:1px solid rgba(23,62,44,.15)}
.partner-table{border-top:1px solid var(--line)}.partner-row{display:grid;grid-template-columns:.6fr 1fr 1fr;gap:32px;padding:24px 0;border-bottom:1px solid var(--line)}.partner-row p{color:var(--muted)}.partner-note{margin-top:24px;color:var(--muted)}.scenario-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.scenario{background:#fff;border:1px solid var(--line);border-radius:16px;padding:32px}.scenario .label{color:var(--green);margin-bottom:24px}.scenario dl{margin:0;display:grid;gap:16px}.scenario dt{font-weight:600;color:var(--ink)}.scenario dd{margin:4px 0 0;color:var(--muted)}.delivery{background:var(--white)}.delivery-grid{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:start}.steps{display:grid;gap:0}.step{display:grid;grid-template-columns:48px 1fr;gap:16px;padding:24px 0;border-bottom:1px solid var(--line)}.step:first-child{padding-top:0}.step-no{width:40px;height:40px;border-radius:50%;background:var(--lime);display:grid;place-items:center;color:var(--ink);font-weight:600}.step p{color:var(--muted);margin-top:4px}.faq{display:grid;gap:8px}.faq details{background:#fff;border:1px solid var(--line);border-radius:8px;padding:16px 24px}.faq summary{cursor:pointer;color:var(--ink);font-weight:600}.faq details p{padding-top:12px;color:var(--muted)}
.contact{background:var(--lime)}.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:64px}.contact-copy{display:flex;flex-direction:column;gap:24px}.contact-copy p{max-width:520px}.contact-facts{display:grid;gap:8px}.contact-form{background:#fff;border-radius:16px;padding:32px;display:grid;gap:16px;box-shadow:var(--shadow)}.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}.field{display:grid;gap:8px}.field label{font-size:14px;line-height:20px;font-weight:600;color:var(--ink)}.field input,.field select,.field textarea{width:100%;border:1px solid var(--line);border-radius:8px;background:#fff;color:var(--ink);padding:8px 12px;min-height:44px}.field textarea{min-height:96px;resize:vertical}.field input::placeholder,.field textarea::placeholder{color:#8b998f}.form-note{color:var(--muted);font-size:12px;line-height:16px}.form-status{display:none;border:1px solid var(--line);border-radius:8px;padding:12px;font-size:14px;line-height:20px}.form-status.show{display:block}.form-status.error{color:var(--error);border-color:#e2b7b2;background:#fff6f4}.form-status.success{color:var(--success);border-color:#b8d6c1;background:#f3faf5}.footer{background:var(--green-dark);color:#c1cec5;padding:48px 0 24px}.footer-top{display:grid;grid-template-columns:1.2fr 1fr 1fr;gap:64px;padding-bottom:48px}.footer .brand-name{color:#fff}.footer .brand-sub{color:#a8b8ad}.footer-links{display:grid;gap:8px;align-content:start}.footer-links strong{color:#fff;margin-bottom:8px}.footer-links a:hover{color:#fff}.footer-bottom{padding-top:24px;border-top:1px solid #355144;display:flex;justify-content:space-between;gap:16px;font-size:12px;line-height:16px}.reveal{opacity:0;transform:translateY(32px);transition:opacity .7s cubic-bezier(.22,1,.36,1),transform .7s cubic-bezier(.22,1,.36,1)}.reveal.visible{opacity:1;transform:none}
.page-hero{padding:144px 0 64px;background:var(--white)}.page-hero-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:64px;align-items:end}.page-hero h1{margin:16px 0 24px}.page-hero p{color:var(--muted);font-size:18px;line-height:28px}.page-kicker{padding:16px;border-radius:16px;background:var(--lime);color:var(--ink)}.feature-split{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:start}.feature-list{border-top:1px solid var(--line)}.feature-row{padding:24px 0;border-bottom:1px solid var(--line)}.feature-row h3{margin-bottom:8px}.feature-row p{color:var(--muted)}.cta-band{padding:48px;border-radius:16px;background:var(--lime);display:flex;align-items:center;justify-content:space-between;gap:32px}.cta-band p{margin-top:8px}.legal{max-width:800px}.legal h2{margin:32px 0 12px}.legal p{margin-bottom:16px}.not-found{min-height:70vh;display:grid;place-items:center;text-align:center;padding:144px 16px 80px}.not-found div{display:grid;gap:24px;justify-items:center}
@media(max-width:900px){.container{width:min(100% - 40px,760px)}.heading-1{font-size:48px;line-height:48px}.heading-2{font-size:36px;line-height:40px}.section{padding:64px 0}.nav-links{position:fixed;inset:0;background:rgba(244,246,237,.98);backdrop-filter:blur(24px);display:flex;flex-direction:column;justify-content:center;gap:24px;opacity:0;visibility:hidden;transform:translateY(24px);transition:opacity .5s cubic-bezier(.22,1,.36,1),transform .5s cubic-bezier(.22,1,.36,1),visibility .5s}.nav-links.open{opacity:1;visibility:visible;transform:none}.nav-links a{font-size:24px;line-height:32px}.nav-links.open a{animation:menu-in .5s cubic-bezier(.22,1,.36,1) both}.nav-links.open a:nth-child(2){animation-delay:.06s}.nav-links.open a:nth-child(3){animation-delay:.12s}.nav-links.open a:nth-child(4){animation-delay:.18s}.nav-links.open a:nth-child(5){animation-delay:.24s}.nav-toggle{display:block;z-index:2}.nav-cta{display:none}.hero{padding-top:128px}.hero-grid,.section-head,.delivery-grid,.contact-grid,.page-hero-grid,.feature-split{grid-template-columns:1fr;gap:32px}.section-head{margin-bottom:32px}.solution-grid,.scenario-grid{grid-template-columns:1fr}.solution-card{min-height:auto}.footer-top{grid-template-columns:1fr 1fr;gap:32px}.footer-top>div:first-child{grid-column:1/-1}.partner-row{grid-template-columns:1fr 1fr}.partner-row h3{grid-column:1/-1}.tagline{font-size:36px;line-height:40px}.cta-band{padding:32px;flex-direction:column;align-items:flex-start}}
@media(max-width:520px){.container{width:calc(100% - 32px)}.heading-1{font-size:36px;line-height:40px;letter-spacing:-1px}.heading-2{font-size:30px;line-height:36px}.heading-3{font-size:30px;line-height:36px}.heading-4{font-size:24px;line-height:32px}.section{padding:48px 0}.brand-sub{display:none}.nav-wrap{min-height:56px}.hero{padding:112px 0 48px}.hero-copy{gap:16px}.hero-lead{font-size:16px;line-height:24px}.hero-actions,.hero-actions .button{width:100%}.hero-visual{padding:8px 0 0 8px}.hero-visual:before{inset:0 16px 16px 0;border-radius:16px}.frame-bar{height:32px}.hero-note{margin-left:8px;flex-direction:column;gap:4px}.product-grid{grid-template-columns:1fr}.product-item{min-height:auto;padding:24px}.capability{grid-template-columns:40px 1fr;gap:16px}.capability p{grid-column:2}.partner-row{grid-template-columns:1fr;gap:8px}.partner-row h3{grid-column:auto}.contact-form{padding:24px}.form-row{grid-template-columns:1fr}.tagline{font-size:30px;line-height:36px}.footer-top{grid-template-columns:1fr}.footer-top>div:first-child{grid-column:auto}.footer-bottom{flex-direction:column}.page-hero{padding:112px 0 48px}.cta-band{padding:24px}.cta-band .button{width:100%}}
@keyframes menu-in{from{opacity:0;transform:translateY(24px)}to{opacity:1;transform:none}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.reveal{opacity:1;transform:none;transition:none}.tagline-word{color:#fff;transition:none}.button,.solution-card,.nav-toggle span,.nav-links{transition:none}.nav-links.open a{animation:none}}