:root {
  --brand-50:#f3f5ff; --brand-100:#e8ebff; --brand-200:#d6dcff; --brand-300:#b7c0ff;
  --brand-400:#8b98fb; --brand-500:#6875ed; --brand-600:#5864dc; --brand-700:#4851ba;
  --brand-800:#3b438f; --brand-900:#2e3569;
  --accent:#78a8ff; --accent-soft:#eaf3ff;
  --surface:#ffffff; --surface-soft:#f7f8ff; --surface-muted:#eef1fb; --surface-glass:rgba(255,255,255,.82);
  --text:#202b47; --text-soft:#6f7c96; --text-faint:#98a3b8; --line:rgba(75,88,145,.12); --line-strong:rgba(75,88,145,.2);
  --success:#1faa78; --danger:#ff5570; --warning:#f3a726;
  --shadow-xs:0 4px 14px rgba(50,62,112,.06); --shadow-sm:0 10px 28px rgba(50,62,112,.08); --shadow-md:0 20px 54px rgba(50,62,112,.12); --shadow-lg:0 30px 80px rgba(50,62,112,.16);
  --radius-xs:10px; --radius-sm:14px; --radius-md:20px; --radius-lg:28px; --radius-xl:36px; --pill:999px;
  --container:1280px; --header-h:72px;
  --font-sans:Inter,"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  --ease:cubic-bezier(.22,.75,.24,1); --transition:220ms var(--ease);
}
*{box-sizing:border-box}[hidden]{display:none!important}html{scroll-behavior:smooth;scroll-padding-top:86px;overflow-x:clip}body{margin:0;font-family:var(--font-sans);color:var(--text);background:var(--surface-soft);font-size:15px;line-height:1.55;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;overflow-x:clip}button,input{font:inherit}button{border:0;cursor:pointer}a{color:inherit;text-decoration:none}img{display:block;max-width:100%;height:auto}svg{display:block}::selection{background:var(--brand-200);color:var(--brand-900)}:focus-visible{outline:3px solid rgba(104,117,237,.32);outline-offset:3px}.section-shell{width:min(var(--container),calc(100% - 40px));margin-inline:auto}.skip-link{position:fixed;left:16px;top:-60px;z-index:9999;background:#fff;padding:10px 14px;border-radius:10px;box-shadow:var(--shadow-md);transition:top .2s}.skip-link:focus{top:16px}.primary-button,.ghost-button,.light-button,.glass-button{min-height:42px;padding:0 22px;border-radius:var(--pill);display:inline-flex;align-items:center;justify-content:center;font-weight:700;transition:transform var(--transition),box-shadow var(--transition),background var(--transition),border-color var(--transition)}.primary-button{background:linear-gradient(135deg,var(--brand-500),var(--brand-600));color:#fff;box-shadow:0 10px 24px rgba(88,100,220,.25)}.primary-button:hover{transform:translateY(-2px);box-shadow:0 14px 32px rgba(88,100,220,.32)}.ghost-button{background:rgba(255,255,255,.72);color:var(--brand-700);border:1px solid var(--line-strong)}.ghost-button:hover{background:#fff;border-color:var(--brand-300)}.light-button{background:#fff;color:var(--brand-700);box-shadow:var(--shadow-xs)}.glass-button{background:rgba(255,255,255,.2);color:#fff;border:1px solid rgba(255,255,255,.5);backdrop-filter:blur(12px)}.glass-button.dark{color:var(--brand-700);background:rgba(255,255,255,.72);border-color:var(--line)}.large{min-height:48px;padding-inline:28px}.compact{min-height:38px;padding-inline:18px;font-size:14px}.full{width:100%}.eyebrow,.section-kicker{font-size:12px;letter-spacing:.22em;font-weight:800;color:var(--brand-500)}