:root{--color-accent: #ff6b1a;--color-accent-2: #ffb020;--color-accent-deep: #e8550d;--color-navy: #0b1220;--color-navy-2: #111c30;--color-ink: #0b1220;--color-ink-soft: #2c3a52;--color-muted: #5b6b82;--color-bg: #f5f7fa;--color-surface: #ffffff;--color-line: rgba(11, 18, 32, .09);--color-line-strong: rgba(11, 18, 32, .16);--color-primary: #ff6b1a;--color-primary-dark: #e8550d;--color-bg-secondary: #eef1f6;--color-text: #0b1220;--color-text-muted: #5b6b82;--color-border: rgba(11, 18, 32, .09);--color-background: #f5f7fa;--color-surface-glass: rgba(255, 255, 255, .72);--font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;--font-mono: ui-monospace, "SF Mono", "Cascadia Mono", "Segoe UI Mono", Consolas, monospace;--font-serif: Georgia, "Times New Roman", serif;--radius-sm: 10px;--radius-md: 16px;--radius-lg: 26px;--container-max: 1200px;--section-y: clamp(4.5rem, 9vw, 7.5rem);--shadow-sm: 0 1px 2px rgba(11, 18, 32, .05), 0 10px 28px rgba(11, 18, 32, .07);--shadow-md: 0 2px 4px rgba(11, 18, 32, .05), 0 18px 44px rgba(11, 18, 32, .1);--shadow-lg: 0 6px 12px rgba(11, 18, 32, .08), 0 34px 80px rgba(11, 18, 32, .18);--transition-smooth: all .5s cubic-bezier(.4, 0, .2, 1);--hazard: repeating-linear-gradient( -45deg, #ffb020 0 12px, #0b1220 12px 24px )}*{margin:0;padding:0;box-sizing:border-box}html{scroll-behavior:smooth}body{font-family:var(--font-sans);background-color:var(--color-bg);color:var(--color-ink);line-height:1.65;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;overflow-x:hidden}h1,h2,h3,h4{font-family:var(--font-sans);font-weight:800;line-height:1.16;letter-spacing:-.02em;color:var(--color-ink)}h1{font-size:clamp(2.4rem,5.5vw,4rem)}h2{font-size:clamp(1.9rem,3.6vw,2.8rem)}h3{font-size:1.28rem}p{line-height:1.8}a{color:inherit;text-decoration:none;transition:var(--transition-smooth)}ul{list-style:none}img{max-width:100%;display:block}button{font-family:inherit;cursor:pointer}.container{max-width:var(--container-max);margin:0 auto;padding:0 1.5rem}.section{padding:var(--section-y) 0}.section--tight{padding:calc(var(--section-y) * .6) 0}.section--dark{background:var(--color-navy);color:#e7ecf4}.glass-effect{background:var(--color-surface-glass);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border:1px solid var(--color-line)}.section-kicker{display:inline-flex;align-items:center;gap:.6rem;font-family:var(--font-mono);font-size:.74rem;font-weight:700;letter-spacing:.18em;text-transform:uppercase;color:var(--color-accent);margin-bottom:1rem}.section-kicker:before{content:"";width:22px;height:2px;background:var(--hazard);border-radius:2px}.section-title{margin-bottom:1.1rem}.section-title--light{color:#fff}.section-body{color:var(--color-muted);max-width:46rem;line-height:1.9}.section-body--light{color:#e7ecf4b8}.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;padding:.95rem 1.9rem;border-radius:12px;font-weight:700;font-size:.95rem;border:1px solid transparent;transition:var(--transition-smooth);white-space:nowrap}.btn:hover{transform:translateY(-2px)}.btn:active{transform:translateY(0)}.btn--primary{background:var(--color-accent);color:#fff;box-shadow:0 8px 22px #ff6b1a57}.btn--primary:hover{background:var(--color-accent-deep);box-shadow:0 12px 30px #ff6b1a6b}.btn--ghost{background:transparent;color:#fff;border-color:#ffffff47}.btn--ghost:hover{background:#ffffff1f;border-color:#ffffff80}.btn--dark{background:var(--color-navy);color:#fff}.btn--dark:hover{background:var(--color-accent)}.btn--outline{background:transparent;color:var(--color-ink);border-color:var(--color-line-strong)}.btn--outline:hover{border-color:var(--color-accent);color:var(--color-accent)}.btn--lg{padding:1.1rem 2.4rem;font-size:1.02rem}.fade-in-up{opacity:0;transform:translateY(26px);transition:opacity .7s ease-out,transform .7s ease-out}.fade-in-up.visible{opacity:1;transform:translateY(0)}@media(prefers-reduced-motion:reduce){.fade-in-up{opacity:1;transform:none;transition:none}html{scroll-behavior:auto}}