:root{--bg-dark: #FFFFFF;--bg-surface: #F8FAFC;--bg-surface-hover: #F1F5F9;--text-main: #0F172A;--text-muted: #64748B;--text-inverse: #FFFFFF;--border-light: rgba(15, 23, 42, .06);--border-strong: rgba(15, 23, 42, .12);--accent-brand: #06B6D4;--accent-blue: #6366F1;--radius-sm: 12px;--radius-md: 16px;--radius-lg: 24px;--transition: all .4s cubic-bezier(.16, 1, .3, 1);--container-max: 1240px}*{margin:0;padding:0;box-sizing:border-box}html{scroll-behavior:smooth;font-family:system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,PingFang SC,Hiragino Sans GB,Microsoft YaHei,sans-serif;background-color:var(--bg-dark);color:var(--text-main);overflow-x:hidden}body{line-height:1.6;min-height:100vh;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background-color:var(--bg-dark);background-image:radial-gradient(circle at 10% 40%,rgba(6,182,212,.06),transparent 45%),radial-gradient(circle at 90% 20%,rgba(99,102,241,.05),transparent 45%),linear-gradient(rgba(15,23,42,.02) 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.tco-box{background:#0f172a;color:#e2e8f0;padding:30px;border-radius:var(--radius-lg);margin:22px 0}.comparison-page .tco-box strong{color:#67e8f9}.comparison-page .tco-formula{font-size:1.08rem;line-height:1.9;margin:0}.comparison-page .choice-list{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:20px;margin:24px 0}.comparison-page .choice-item{padding:24px;border:1px solid var(--border-light);border-radius:16px;background:#fff}.comparison-page .choice-item h3{margin-top:0}.comparison-page .choice-item ul{color:var(--text-muted);line-height:1.8;padding-left:20px;margin-bottom:0}.comparison-page .faq-item{background:#fff;border:1px solid var(--border-light);border-radius:14px;padding:20px;margin-bottom:14px}.comparison-page .faq-item h3{font-size:1.05rem;margin:0 0 8px}.comparison-page .faq-item p{color:var(--text-muted);line-height:1.7;margin:0}@media (max-width: 768px){.comparison-page .lead-panel{padding:24px 20px}.comparison-page .table-hint{display:block}.comparison-page .quick-result{grid-template-columns:1fr}.comparison-page .compare-page h1{font-size:2rem!important}}.hero-pre-title{color:var(--accent-brand);font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;font-weight:700;font-size:.8rem;letter-spacing:2px;text-transform:uppercase;margin-bottom:24px;display:flex;align-items:center;gap:12px}.hero-pre-title:before{content:"";display:inline-block;width:30px;height:2px;background:var(--accent-brand)}.hero-main-title{font-size:clamp(2rem,3.5vw,3.2rem);font-weight:900;line-height:1.1;letter-spacing:-1.5px;margin-bottom:20px;color:var(--text-main);font-family:system-ui,-apple-system,sans-serif}.hero-main-desc{font-size:1.1rem;font-weight:300;color:var(--text-muted);line-height:1.8;letter-spacing:.5px;margin-bottom:32px}.hero-actions{display:flex;gap:20px;flex-wrap:wrap}.hero-image-box{position:relative;border-radius:var(--radius-lg);overflow:hidden;height:520px;box-shadow:0 30px 60px 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p{font-size:.95rem;color:var(--text-muted);line-height:1.5;margin:0}.carousel-indicators{position:absolute;bottom:24px;left:50%;transform:translate(-50%);display:flex;gap:12px;z-index:10}.carousel-indicators .dot{width:10px;height:10px;border-radius:50%;background:#0f172a4d;transition:all .4s ease}.carousel-indicators .dot.active{background:var(--accent-brand);transform:scale(1.3);box-shadow:0 0 10px #06b6d480}.section{padding:40px 0;border-top:1px solid var(--border-light)}.section-header{text-align:center;max-width:600px;margin:0 auto 32px}.section-tag{color:var(--accent-brand);font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;font-weight:700;font-size:.85rem;letter-spacing:3px;text-transform:uppercase;margin-bottom:16px;display:inline-block;padding:6px 16px;background:#06b6d414;border:1px solid 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32rem),linear-gradient(145deg,#f8fcff,#eef9f7)}.panel-cleaning-hero-copy{position:relative;z-index:1}.panel-cleaning-hero-image{min-height:380px;position:relative;overflow:hidden;border-radius:24px;box-shadow:0 24px 50px #0f172a2e}.panel-cleaning-hero-image:after{content:"";position:absolute;top:0;right:0;bottom:0;left:0;background:linear-gradient(180deg,#0f172a00 42%,#0f172ab8)}.panel-cleaning-image-note{position:absolute;z-index:1;left:28px;right:28px;bottom:26px;display:grid;grid-template-columns:auto 1fr;column-gap:12px;color:#fff;align-items:center}.panel-cleaning-image-note span{grid-row:span 2;color:#a5f3fc;font:800 1.65rem/1 ui-monospace,SFMono-Regular,Menlo,monospace}.panel-cleaning-image-note strong{font-size:1.1rem}.panel-cleaning-image-note small{color:#ffffffc7;margin-top:3px}.panel-cleaning-problem-grid .info-card{position:relative;min-height:218px;overflow:hidden;border:1px solid rgba(14,116,144,.13);box-shadow:0 12px 28px #0f172a0f}.knowledge-page--panel-cleaning .card-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(235px,1fr));gap:20px}.knowledge-page--panel-cleaning .info-card{display:flex;flex-direction:column;align-items:flex-start;padding:28px;background:#fff;border:1px solid var(--border-light);border-radius:var(--radius-md);box-shadow:0 10px 24px #0f172a0d;transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease}.knowledge-page--panel-cleaning .info-card h3{color:var(--text-main);font-size:1.2rem;line-height:1.35;margin:0 0 12px}.knowledge-page--panel-cleaning .info-card p{color:var(--text-muted);line-height:1.7;margin:0}.knowledge-page--panel-cleaning .info-card a{color:var(--accent-brand);font-weight:700;text-decoration:none;margin-top:auto;padding-top:18px}.knowledge-page--panel-cleaning .info-card a:hover{text-decoration:underline}.knowledge-page--panel-cleaning .info-card:hover{border-color:#06b6d46b;transform:translateY(-3px);box-shadow:0 16px 30px #0f172a1a}.panel-cleaning-problem-grid .info-card:hover{transform:translateY(-5px);box-shadow:0 20px 36px #0f172a1f}.panel-cleaning-card-index{display:inline-flex;color:var(--accent-brand);font:800 .76rem/1 ui-monospace,SFMono-Regular,Menlo,monospace;letter-spacing:.13em;margin-bottom:20px}@media (max-width: 760px){.panel-cleaning-hero-image{min-height:290px}.panel-cleaning-image-note{left:20px;right:20px;bottom:20px}}@media (max-width: 900px){.nav-menu .nav-item-dropdown{width:100%}.nav-menu .dropdown-menu{position:static;transform:none;box-shadow:none;border:none;background:#00000005;padding:8px 0;opacity:1;visibility:visible;margin-top:8px;border-radius:var(--radius-sm)}.nav-menu .nav-item-dropdown:hover .dropdown-menu{transform:none}}.core-pillars-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:24px;margin-top:36px}.pillar-card{background:var(--bg-surface);border:1px solid var(--border-light);border-radius:var(--radius-lg);padding:32px 24px;display:flex;flex-direction:column;transition:var(--transition);position:relative;overflow:hidden;box-shadow:0 4px 20px #0f172a08}.pillar-card:before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:var(--pillar-accent, var(--accent-brand));opacity:.8;transition:var(--transition)}.pillar-card:hover{transform:translateY(-6px);border-color:var(--border-strong);box-shadow:0 16px 36px #0f172a14}.pillar-card:hover:before{height:6px;opacity:1}.pillar-card--scenarios{--pillar-accent: #6366f1}.pillar-card--simplicity{--pillar-accent: #059669}.pillar-card--efficiency{--pillar-accent: #0891b2}.pillar-card--safety{--pillar-accent: #0284c7}.pillar-badge{display:inline-flex;align-items:center;gap:6px;padding:4px 12px;border-radius:999px;font-size:.78rem;font-weight:700;letter-spacing:.5px;width:fit-content;margin-bottom:14px}.pillar-card--scenarios .pillar-badge{background:#6366f11a;color:#6366f1}.pillar-card--simplicity .pillar-badge{background:#0596691a;color:#059669}.pillar-card--efficiency .pillar-badge{background:#0891b21a;color:#0891b2}.pillar-card--safety .pillar-badge{background:#0284c71a;color:#0284c7}.pillar-title{font-size:1.8rem;font-weight:900;color:var(--text-main);margin-bottom:8px;display:flex;align-items:center;gap:10px}.pillar-headline{font-size:1rem;font-weight:700;color:var(--text-main);line-height:1.5;margin-bottom:18px;min-height:2.8rem}.pillar-list{list-style:none;padding:18px 0 0;margin:0;display:flex;flex-direction:column;gap:14px;border-top:1px solid var(--border-light);flex-grow:1}.pillar-list li{display:flex;flex-direction:column;gap:4px}.pillar-list strong{color:var(--text-main);font-size:.92rem;display:flex;align-items:center;gap:6px}.pillar-list strong:before{content:"✓";display:inline-flex;align-items:center;justify-content:center;width:18px;height:18px;border-radius:50%;font-size:.72rem;background:#0f172a0d;color:var(--text-main);font-weight:800;flex-shrink:0}.pillar-card--scenarios .pillar-list strong:before{background:#6366f126;color:#6366f1}.pillar-card--simplicity .pillar-list strong:before{background:#05966926;color:#059669}.pillar-card--efficiency .pillar-list strong:before{background:#0891b226;color:#0891b2}.pillar-card--safety .pillar-list strong:before{background:#0284c726;color:#0284c7}.pillar-list span{color:var(--text-muted);font-size:.88rem;line-height:1.6;padding-left:24px}