: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: 1680px;--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 0}.section-inner{max-width:var(--max-width);margin:0 auto;padding:0 64px}.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)}.nav-link{display:inline-flex;align-items:center;padding:10px 0;font-size:14px;font-weight:500;line-height:18px;color:var(--color-text-secondary);text-decoration:none;white-space:nowrap;transition:color .2s}.nav-link:hover,.nav-link.active{color:var(--color-text-primary)}.hero-top{display:grid;grid-template-columns:minmax(0,1fr) auto;align-items:end;column-gap:48px;width:100%;margin-bottom:48px}.hero-brand{grid-area:1 / 1;justify-self:start;margin-bottom:24px}.hero-title{grid-area:2 / 1;margin:0}.hero-desc{grid-area:3 / 2;justify-self:end;max-width:440px;text-align:right;margin:0}.hero-actions{grid-area:3 / 1;display:flex;align-items:center;gap:12px;margin-top:32px}.hero-actions .btn{font-size:14px;padding:0 20px}@media (max-width: 1279px){.hero-top{grid-template-columns:minmax(0,1fr)}.hero-desc{grid-area:3 / 1;justify-self:start;max-width:100%;text-align:left;margin-top:16px}.hero-actions{grid-row:4}}@media (max-width: 767px){.hero-top{margin-bottom:40px}}.footer{padding:84px 0 36px;background:var(--color-hero-bg)}.footer-top{display:flex;justify-content:space-between;gap:20px}.footer-left{width:337px;flex-shrink:0}.footer-brand{display:inline-flex;align-items:center;gap:10px;text-decoration:none;color:var(--color-text-primary);font-size:18px;font-weight:700;letter-spacing:-.02em}.footer-brand-g{width:30px;height:30px;border-radius:50%;background:#fff;border:1.5px solid #e5e5e5;display:flex;align-items:center;justify-content:center;color:#1a1a1a;font-size:21px;font-weight:700;line-height:1;flex-shrink:0}.footer-slogan{margin-top:20px;font-size:32px;font-weight:500;line-height:1.3;color:var(--color-text-primary)}.footer-right{flex:1 1 0%;min-width:0}.footer-cols{display:grid;grid-template-columns:repeat(2,157px);font-size:13px}.footer-col{display:flex;flex-direction:column;gap:16px;padding:0 24px}.footer-col-title{font-size:13px;font-weight:500;line-height:18px;color:var(--color-text-tertiary)}.footer-col a{font-size:13px;font-weight:400;line-height:18px;color:var(--color-text-primary);text-decoration:none;transition:color .2s}.footer-col a:hover{color:var(--color-text-secondary)}.footer-bottom{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:24px}.footer-copyright{font-size:12px;line-height:20px;color:var(--color-text-muted)}.footer-back-top{display:inline-flex;align-items:center;gap:2px;height:36px;padding:4px 12px;border:none;border-radius:10px;background:#fff;color:var(--color-text-secondary);font-size:13px;line-height:18px;font-family:var(--font-body);cursor:pointer;transition:background .15s}.footer-back-top:hover{background:var(--color-bg-tertiary)}@media (max-width: 1180px){.footer-top{flex-direction:column;gap:0}.footer-left{width:100%}.footer-right{margin-top:48px}.footer-col{padding:0}}@media (max-width: 768px){.footer-cols{grid-template-columns:repeat(2,minmax(0,1fr));gap:30px}}::-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 0}.section-inner{padding:0 20px}.section-title{font-size:30px}.section-subtitle{font-size:16px}.btn{padding:12px 22px;font-size:14px}}