:root{--bg:#F4FAFC;--surface:#fff;--secondary:#E7F3F6;--title:#0E3A46;--text:#24505A;--muted:#4A7380;--soft:#7A9AA4;--brand:#1A7F8F;--bright:#2BB3C4;--deep:#0F5B68;--pale:#D7EEF2;--border:rgba(26,127,143,.16);--shadow:0 14px 34px rgba(14,58,70,.08);--radius:18px;--header-h:106px;--mobile-bottom:0px}*{box-sizing:border-box}html{scroll-behavior:smooth;overflow-x:hidden}body{margin:0;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;font-size:16px;line-height:1.75;overflow-x:hidden}body.modal-open{overflow:hidden}a{color:inherit;text-decoration:none}button,input{font:inherit}button{color:inherit}img{display:block;max-width:100%;height:auto}p{margin:0 0 1em}h1,h2,h3{margin:0;color:var(--title);line-height:1.28}h1{font-size:clamp(28px,4vw,32px);letter-spacing:-.02em}h2{font-size:clamp(22px,3vw,26px)}h3{font-size:18px}.container{width:min(1200px,calc(100% - 40px));margin:0 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