:root{--color-bg: #ffffff;--color-bg-secondary: #fbfbfa;--color-bg-tertiary: #f7f6f3;--color-bg-hover: #efefed;--color-hero-bg: #f5f5f7;--color-surface: #ffffff;--color-border: #e9e9e7;--color-border-light: #f0f0ee;--color-text-primary: #37352f;--color-text-secondary: #63605a;--color-text-tertiary: #9b9a97;--color-text-muted: #c4c3bf;--color-accent: #2383e2;--color-accent-hover: #1b6ec2;--color-accent-light: #e8f0fe;--color-accent-gradient: linear-gradient(135deg, #2383e2 0%, #9065b0 100%);--color-accent-gradient-light: linear-gradient(135deg, #e8f0fe 0%, #f3eef8 100%);--color-accent-dark: #2b2d30;--color-accent-dark-hover: #1a1c1e;--color-accent-dark-text: #ffffff;--color-success: #4dab6c;--color-success-bg: #edf3ec;--color-accent-red: #eb5757;--color-accent-red-bg: #fce4e4;--shadow-sm: 0 1px 2px rgba(15, 15, 15, .06);--shadow-md: 0 2px 8px rgba(15, 15, 15, .08);--shadow-lg: 0 4px 16px rgba(15, 15, 15, .1);--shadow-xl: 0 4px 16px rgba(15, 15, 15, .1);--radius-sm: 8px;--radius-md: 12px;--radius-lg: 16px;--radius-xl: 16px;--radius-full: 9999px;--font-body: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;--max-width: 1440px;--header-h: 56px;--btn-h: 48px;--btn-padding-x: 24px;--btn-font-size: 15px;--btn-sm-h: 36px;--btn-sm-padding-x: 16px;--btn-sm-font-size: 13px}@media (max-width: 880px){:root{--header-h: 60px}}*{margin:0;padding:0;box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:var(--header-h)}body{font-family:var(--font-body);font-size:16px;line-height:1.6;color:var(--color-text-primary);background:var(--color-bg);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;overflow-x:hidden}.section{padding:100px 6vw}.section-inner{max-width:var(--max-width);margin:0 auto}.section-tag{display:inline-block;font-size:13px;font-weight:600;color:var(--color-accent);background:var(--color-accent-light);padding:4px 14px;border-radius:var(--radius-full);margin-bottom:16px;letter-spacing:.02em}.section-title{font-size:40px;font-weight:800;line-height:1.2;letter-spacing:-.03em;color:var(--color-text-primary);margin-bottom:16px}.section-subtitle{font-size:18px;color:var(--color-text-secondary);line-height:1.7;max-width:640px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:var(--btn-h);padding:0 var(--btn-padding-x);border:1px solid transparent;border-radius:var(--radius-full);font-size:var(--btn-font-size);font-weight:600;font-family:var(--font-body);cursor:pointer;text-decoration:none;transition:all .2s ease;white-space:nowrap}.btn-sm{height:var(--btn-sm-h);padding:0 var(--btn-sm-padding-x);font-size:var(--btn-sm-font-size);font-weight:500}.btn-primary{background:var(--color-accent-dark);color:var(--color-accent-dark-text)}.btn-primary:hover{background:var(--color-accent-dark-hover);box-shadow:0 2px 8px #00000026;transform:translateY(-1px)}.btn-outline{background:var(--color-bg);color:var(--color-text-primary);border:1px solid var(--color-border)}.btn-outline:hover{border-color:var(--color-accent-dark);color:var(--color-accent-dark);background:var(--color-bg-hover)}.btn-ghost{background:transparent;color:var(--color-text-secondary)}.btn-ghost:hover{color:var(--color-text-primary);background:var(--color-bg-tertiary)}::-webkit-scrollbar{width:8px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:#d6d6d6;border-radius:12px}::-webkit-scrollbar-thumb:hover{background:#bebebe}@keyframes fadeInUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes pulse-glow{0%,to{box-shadow:0 0 20px #2383e226}50%{box-shadow:0 0 40px #2383e24d}}.animate-fade-in-up{animation:fadeInUp .6s ease-out both}@media (max-width: 768px){.section{padding:60px 16px}.section-title{font-size:30px}.section-subtitle{font-size:16px}.btn{padding:12px 22px;font-size:14px}}