#app{min-height:100vh}:root,.theme-default{--brand-primary:#0b2241;--brand-primary-soft:#122f55;--brand-accent:#e8651a;--brand-accent-dark:#c95710;--brand-accent-active:#a8470b;--brand-secondary:#18a98a;--neutral-50:#f7f9fc;--neutral-100:#eef2f7;--neutral-200:#dce3ec;--neutral-300:#b5bfcc;--neutral-500:#6b7785;--neutral-700:#3d4753;--neutral-900:#1a2733;--viz-blue:#2b7fd4;--viz-teal:#18a98a;--viz-amber:#e5a518;--viz-purple:#7b5cd6;--viz-alert:#d7393c;--hero-overlay:#0b224199;--chip-glass:#ffffff1f;--border-weak:1px solid #dce3ec;--border-mid:1px solid #b5bfcc;--border-strong:1.5px solid #0b2241;--font-zh-heading:"PingFang SC", "Microsoft YaHei", "Noto Sans SC", -apple-system, BlinkMacSystemFont, sans-serif;--font-zh-body:"PingFang SC", "Microsoft YaHei", "Noto Sans SC", -apple-system, BlinkMacSystemFont, sans-serif;--font-en:"Inter", "Helvetica Neue", Arial, sans-serif;--text-h1:clamp(36px, 4.2vw, 56px);--text-h2:clamp(28px, 2.6vw, 40px);--text-h3:24px;--text-h4:18px;--text-body:16px;--text-body-sm:14px;--text-caption:12px;--text-data-xl:clamp(48px, 5vw, 72px);--weight-regular:400;--weight-semibold:600;--weight-bold:700;--space-1:4px;--space-2:8px;--space-3:16px;--space-4:24px;--space-5:32px;--space-6:48px;--space-7:64px;--space-8:96px;--radius-sm:4px;--radius-md:8px;--radius-lg:16px;--radius-xl:24px;--shadow-sm:0 1px 2px #0b22410f, 0 1px 3px #0b224114;--shadow-md:0 4px 8px #0b224114, 0 8px 16px #0b22410f;--shadow-lg:0 12px 24px #0b22411f, 0 20px 40px #0b22411a;--duration-fast:.15s;--duration-med:.25s;--ease-default:cubic-bezier(.25, .1, .25, 1);--ease-spring:cubic-bezier(.34, 1.56, .64, 1);--ease-enter:cubic-bezier(0, 0, .2, 1);--ease-exit:cubic-bezier(.4, 0, 1, 1);--max-content:1200px;--max-hero-text:720px}*,:before,:after{box-sizing:border-box}html,body{margin:0;padding:0}body{font-family:var(--font-zh-body);font-size:var(--text-body);color:var(--neutral-900);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background:#fff;line-height:1.6}h1,h2,h3,h4,h5,h6{font-family:var(--font-zh-heading);font-weight:var(--weight-bold);margin:0;line-height:1.3}p{margin:0}ul,ol{margin:0;padding:0;list-style:none}a{color:inherit;text-decoration:none}button{cursor:pointer;font-family:inherit}img{max-width:100%;display:block}.container{max-width:var(--max-content);padding-inline:var(--space-4);margin:0 auto}.section{padding-block:var(--space-8) var(--space-8)}.section.bg-light{background-color:var(--neutral-50)}.section.bg-dark{background-color:var(--brand-primary);color:#fff}.section__title{text-align:center;font-size:var(--text-h2);color:var(--neutral-900);margin-bottom:var(--space-3);letter-spacing:-.01em}.bg-dark .section__title{color:#fff}.section__subtitle{text-align:center;font-size:var(--text-body);color:var(--neutral-500);margin-bottom:var(--space-7)}.bg-dark .section__subtitle{color:#ffffffa6}.data-number{font-family:var(--font-en);font-variant-numeric:tabular-nums;font-feature-settings:"tnum";letter-spacing:-.02em}.btn{justify-content:center;align-items:center;gap:var(--space-2);font-family:var(--font-zh-heading);font-weight:var(--weight-semibold);font-size:var(--text-body);border-radius:var(--radius-sm);cursor:pointer;white-space:nowrap;height:48px;padding-inline:var(--space-4);border:none;line-height:1;text-decoration:none;display:inline-flex}.btn--lg{height:56px;padding-inline:var(--space-5);font-size:var(--text-h4)}.btn--sm{height:36px;padding-inline:var(--space-3);font-size:var(--text-body-sm)}.btn--primary{background-color:var(--brand-accent);color:#fff}.btn--secondary{color:var(--brand-primary);border:var(--border-strong);background-color:#0000}.btn--secondary-on-dark{color:#fff;background-color:#0000;border:1.5px solid #fff6}.btn--tertiary{color:var(--brand-primary);background-color:#0000;border:none;height:auto;padding:0;position:relative}.bg-dark .btn--tertiary{color:#ffffffd9}.chip{font-size:var(--text-caption);font-weight:var(--weight-semibold);border-radius:var(--radius-sm);background-color:var(--neutral-100);color:var(--neutral-700);letter-spacing:.02em;align-items:center;gap:4px;padding:4px 10px;display:inline-flex}.chip--dark{color:#fff;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);background-color:#0b2241d9}.chip--accent{border:1px solid var(--brand-accent);color:var(--brand-accent);background-color:#0000}.chip--accent-fill{background-color:var(--brand-accent);color:#fff;border:none}.chip--glass{background-color:var(--chip-glass);color:#fff;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);border:1px solid #ffffff2e}