:root{--color-navy: #0b1f3f;--color-navy-deep: #071733;--color-navy-light: #14315e;--color-primary: #1d6bf2;--color-primary-dark: #1452c6;--color-primary-soft: #e8f0fe;--color-accent: #22c1e3;--color-accent-soft: #e2f8fc;--color-bg: #f6f8fc;--color-surface: #ffffff;--color-text: #12213b;--color-text-muted: #5a6b85;--color-border: rgba(18, 33, 59, .09);--color-white: #ffffff;--font-sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", "Source Han Sans SC", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;--radius-sm: .375rem;--radius-md: .75rem;--radius-lg: 1.25rem;--radius-xl: 1.75rem;--container-max: 1200px;--section-space: clamp(4rem, 8vw, 6.5rem);--shadow-sm: 0 1px 3px rgba(11, 31, 63, .06), 0 1px 2px rgba(11, 31, 63, .04);--shadow-md: 0 8px 24px rgba(11, 31, 63, .08), 0 2px 6px rgba(11, 31, 63, .05);--shadow-lg: 0 24px 60px rgba(11, 31, 63, .14), 0 8px 20px rgba(11, 31, 63, .08);--transition: all .4s cubic-bezier(.4, 0, .2, 1)}*{margin:0;padding:0;box-sizing:border-box}html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}body{font-family:var(--font-sans);background-color:var(--color-bg);color:var(--color-text);line-height:1.65;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;overflow-x:hidden}h1,h2,h3,h4,h5{font-weight:700;line-height:1.22;color:var(--color-text);letter-spacing:-.01em}a{color:inherit;text-decoration:none;transition:var(--transition)}ul,ol{list-style:none}img{max-width:100%;display:block}button{font-family:inherit;cursor:pointer}::selection{background:var(--color-primary);color:#fff}.container{max-width:var(--container-max);margin:0 auto;padding:0 1.5rem}.section{padding:var(--section-space) 0;position:relative}.section-tight{padding:clamp(2.5rem,5vw,4rem) 0}.surface{background:var(--color-surface)}.overflow-hidden{overflow:hidden}.section-head{max-width:760px;margin:0 auto clamp(2.5rem,5vw,4rem);text-align:center}.section-head--left{margin-left:0;margin-right:auto;text-align:left}.eyebrow{display:inline-flex;align-items:center;gap:.5rem;padding:.35rem .9rem;border-radius:999px;background:var(--color-primary-soft);color:var(--color-primary);font-size:.78rem;font-weight:600;letter-spacing:.06em;margin-bottom:1.1rem}.eyebrow--accent{background:var(--color-accent-soft);color:#0a7ea0}.section-title{font-size:clamp(1.9rem,4.4vw,2.8rem);line-height:1.18;margin-bottom:1rem}.section-title em{font-style:normal;color:var(--color-primary)}.section-body{color:var(--color-text-muted);font-size:1.05rem;line-height:1.8}.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;padding:.85rem 1.75rem;border-radius:var(--radius-md);font-weight:600;font-size:.98rem;border:1px solid transparent;transition:var(--transition);white-space:nowrap}.btn-primary{background:var(--color-primary);color:#fff;box-shadow:0 8px 20px #1d6bf247}.btn-primary:hover{background:var(--color-primary-dark);transform:translateY(-2px);box-shadow:0 12px 28px #1d6bf25c}.btn-outline{background:transparent;color:var(--color-text);border-color:var(--color-border)}.btn-outline:hover{border-color:var(--color-primary);color:var(--color-primary);transform:translateY(-2px)}.btn-white{background:#fff;color:var(--color-navy)}.btn-white:hover{transform:translateY(-2px);box-shadow:0 12px 28px #ffffff4d}.btn-ghost-white{background:#ffffff1a;color:#fff;border-color:#ffffff40;backdrop-filter:blur(8px)}.btn-ghost-white:hover{background:#fff3;transform:translateY(-2px)}.btn .arrow{transition:transform .3s ease}.btn:hover .arrow{transform:translate(4px)}.card{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);transition:var(--transition)}.card-hover:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);border-color:transparent}.reveal{opacity:0;transform:translateY(26px);transition:opacity .7s ease-out,transform .7s ease-out}.reveal.visible{opacity:1;transform:translateY(0)}.reveal-delay-1{transition-delay:.08s}.reveal-delay-2{transition-delay:.16s}.reveal-delay-3{transition-delay:.24s}.reveal-delay-4{transition-delay:.32s}@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}.reveal{opacity:1;transform:none}}.chip{display:inline-flex;align-items:center;padding:.3rem .75rem;border-radius:999px;background:var(--color-bg);border:1px solid var(--color-border);color:var(--color-text-muted);font-size:.78rem;font-weight:500}