:root{--bg: #f7faf8;--bg-pure: #ffffff;--bg-soft: #eef6f2;--ink: #11221b;--ink-secondary: #43584f;--ink-muted: #74887f;--brand: #1f6f54;--brand-dark: #15523d;--brand-light: #e6f4ee;--accent: #f38138;--accent-soft: #fff3eb;--line: #dce7e1;--line-soft: #eaf1ed;--radius-xl: 24px;--radius-lg: 18px;--radius-md: 12px;--shadow-sm: 0 4px 14px rgba(17, 34, 27, .04);--shadow-md: 0 14px 36px rgba(17, 34, 27, .07);--shadow-lg: 0 24px 60px rgba(21, 82, 61, .12)}*{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}body{font-family:-apple-system,BlinkMacSystemFont,PingFang SC,Hiragino Sans GB,Microsoft YaHei,Inter,sans-serif;background-color:var(--bg);color:var(--ink);line-height:1.6;-webkit-font-smoothing:antialiased;overflow-x:hidden}a{color:inherit;text-decoration:none}.container{max-width:1200px;margin:0 auto;padding:0 24px}.navbar{position:sticky;top:0;z-index:100;background:#ffffffdb;-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);border-bottom:1px solid rgba(220,231,225,.8);transition:box-shadow .2s ease}.navbar.scrolled{box-shadow:var(--shadow-sm)}.nav-inner{height:72px;display:flex;align-items:center;justify-content:space-between}.brand-logo{display:flex;align-items:center;gap:12px;font-weight:800;font-size:20px;color:var(--ink)}.brand-logo img{width:38px;height:38px;border-radius:10px;display:block}.flat-icon{display:inline-block;flex-shrink:0;vertical-align:-.18em}.inline-icon{display:inline-flex;align-items:center;gap:6px}.brand-tag{font-size:11px;font-weight:600;color:var(--brand);background:var(--brand-light);padding:2px 8px;border-radius:999px}.nav-links{display:flex;align-items:center;gap:32px}.nav-links a{font-size:15px;font-weight:500;color:var(--ink-secondary);transition:color .2s}.nav-links a:hover{color:var(--brand)}.nav-actions{display:flex;align-items:center;gap:12px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-size:14px;font-weight:600;padding:10px 20px;border-radius:999px;border:1px solid transparent;cursor:pointer;transition:all .2s ease}.btn-lg{font-size:16px;padding:14px 28px}.btn-primary{background:linear-gradient(135deg,#247c5d,#175841);color:#fff;box-shadow:0 6px 18px #1f6f543d}.btn-primary:hover{transform:translateY(-1px);box-shadow:0 10px 24px #1f6f5452}.btn-outline{background:#fff;color:var(--ink);border-color:var(--line)}.btn-outline:hover{border-color:var(--brand);color:var(--brand);background:var(--brand-light)}.btn-accent{background:linear-gradient(135deg,#f38138,#e06319);color:#fff;box-shadow:0 6px 18px #f3813840}.btn-accent:hover{transform:translateY(-1px);box-shadow:0 10px 24px #f3813857}.hero{position:relative;padding:76px 0 68px;background:radial-gradient(circle at 15% 15%,rgba(31,111,84,.09) 0%,transparent 42%),radial-gradient(circle at 85% 20%,rgba(243,129,56,.1) 0%,transparent 40%),linear-gradient(180deg,#fff,#f5f9f7);border-bottom:1px solid var(--line-soft)}.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}.eyebrow-pill{display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;background:#fff;border:1px solid var(--line);font-size:13px;font-weight:600;color:var(--brand);box-shadow:var(--shadow-sm);margin-bottom:22px}.eyebrow-dot{width:8px;height:8px;border-radius:50%;background:var(--accent)}.hero-title{font-size:46px;line-height:1.18;font-weight:800;letter-spacing:-.02em;color:var(--ink);margin-bottom:20px}.hero-title .highlight{background:linear-gradient(120deg,var(--brand) 0%,#2a9d77 55%,var(--accent) 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent}.hero-desc{font-size:17px;color:var(--ink-secondary);margin-bottom:30px;max-width:540px}.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px}.hero-metrics{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;padding-top:24px;border-top:1px solid var(--line)}.metric-item 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.15s}.mockup-tab.active{background:var(--brand);color:#fff}.mockup-body{padding:22px}.preview-card{background:var(--bg);border:1px solid var(--line);border-radius:var(--radius-md);padding:18px}.preview-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:14px}.badge{display:inline-flex;align-items:center;gap:5px;font-size:12px;font-weight:600;padding:3px 10px;border-radius:999px}.badge-green{background:var(--brand-light);color:var(--brand)}.badge-orange{background:var(--accent-soft);color:#c85a14}.compare-boxes{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-bottom:14px}.paper-box{background:#fff;border:1px solid var(--line);border-radius:10px;padding:14px;font-size:13px}.paper-box.dirty{border-style:dashed}.scribble-text{color:#d54941;text-decoration:line-through;font-style:italic;margin-top:6px}.clean-text{color:var(--brand);font-weight:600;margin-top:6px}.ai-insight-box{background:#fff;border-left:3px solid var(--brand);border-radius:8px;padding:12px 14px;font-size:13px;color:var(--ink-secondary)}.section{padding:84px 0}.section-alt{background:#fff;border-top:1px solid var(--line-soft);border-bottom:1px solid var(--line-soft)}.section-head{text-align:center;max-width:680px;margin:0 auto 52px}.section-tag{display:inline-block;font-size:12px;font-weight:700;text-transform:uppercase;letter-spacing:.08em;color:var(--brand);background:var(--brand-light);padding:4px 12px;border-radius:999px;margin-bottom:12px}.section-head h2{font-size:34px;font-weight:800;color:var(--ink);margin-bottom:12px}.section-head p{font-size:16px;color:var(--ink-secondary)}.bento-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}.bento-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:28px;transition:all .25s 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